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(11) | EP 3 150 819 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
| published in accordance with Art. 153(4) EPC |
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| (54) | AUTOMOBILE MUFFLER AND AUTOMOBILE PROVIDED WITH SAME |
| (57) An automobile muffler comprises a housing (1), an air inlet pipe (3), an air outlet
pipe (4), and an absorption material member (9). A muffling cavity is defined in the
housing (1). A first end of the air inlet pipe (3) is suitable for being connected
to an engine. A second end of the air inlet pipe (3) extends into the muffling cavity
to guide waste gas generated by the engine into the muffling cavity. A first end of
the air outlet pipe (4) is disposed in the muffling cavity and a second end of the
air outlet pipe (4) extends out of the muffling cavity to discharge the waste gas
in the muffling cavity. The absorption material member (9) is disposed in the housing
(1) to absorb liquid in the muffling cavity. Also disclosed is an automobile provided
with the muffler. The absorption material member (9) is disposed in the housing (1)
of the muffler and can completely absorb accumulated liquid in the muffler, and accordingly,
the service life of the muffler is prolonged. In addition, the absorption material
member (9) can be configured not to affect the muffling effect and the appearance
of the muffler, and is accordingly easy to replace and convenient to maintain. |
TECHNICAL FIELD
[0001] The present invention relates to the technical field of vehicles, especially to an automobile muffler and automobile provided with the same.
BACKGROUND OF THE UTILITY MODEL
[0002] Muffler is one of the components commonly used in automobiles. The muffler mainly uses the principle of sound wave superposition interference to effectively reduce the noise pollution during vehicle driving and to make the high temperature exhaust gas safely discharge. Specifically, the muffler is a part of the exhaust duct, and the exhaust gas discharged from the engine flows through the muffler. The exhaust gas from the engine contains mainly CO, HC, NOX, CO2 and water vapor, etc., part of the water vapor exhausted from the automobile, the other part of the water vapor reamins in the muffler. The remaining water vapor is combined with a portion of the exhaust gas flowing through the muffler to produce a weak acid liquid.
[0003] In order to avoid corrosion of the muffler caused by the weak acid liquid, it is common practice to puncture at the lowest point of the muffler shell to discharge the weak acid liquid, but this method will affect the noise reduction effect of the muffler, and the discharged liquid will splash on the muffler shell. This will make the muffler shell rust, so to a certain extent, will also affect the life of the muffler, and affect the appearance of the muffler.
[0004] In addition, some muffler manufacturers will design some of the internal structures of the muffler for the discharge of liquid, such as siphon structure or negative pressure adsorption structure, but these structures can not completely drain the liquid. If the structure fails, the liquid can not be discharged.
SUMMARY OF THE INVENTION
[0005] The present invention aims at solving the technical problems of the prior art. It is therefore an object of the present invention to provide a muffler for an automobile which can completely discharge the internally generated liquid and has a long service life of the muffler and is unaffected by the appearance and is easy to maintain.
[0006] It is another object of the present invention to provide an automobile having the above-described muffler for an automobile.
[0007] The present invention provides an automobile muffler for automobile comprising an engine, and the muffler comprising:
a housing, defining an muffling cavity therein;
an air inlet pipe, including a first end adapted to be connected to the engine, and a second end extending into the muffling cavity, for directing exhaust gas generated by the engine into the muffling cavity;
an air outlet pipe, including a first end arranged in the muffling cavity, and a second end extending out of the muffling cavity, so as to discharge the exhaust gas in the muffling cavity; and
an adsorbent material member, arranged in the housing, for absorbing liquid in the muffling cavity.
[0008] Preferably, the housing comprises:
a first shell, the air inlet pipe and the air outlet pipe extend into the first shell, and the first shell has a bottom wall provided with an opening;
a second shell located at the bottom wall of the first shell, and communicated with the first shell through the opening, wherein the adsorbent material member is arranged in the second shell.
[0011] Preferably, the muffler further comprises a clapboard, the clapboard is provided with a through hole penetrating the clapboard in the thickness direction thereof, and the clapboard is located at the opening.
[0013] Preferably, the first shell comprises:
a mainbody, provided with an fitting port at the top of the mianbody, the opening is arranged in the bottom wall of the mainbody;
a cover, assembled at the fitting port disassemblely.
[0014] Preferably, the muffler further comprises:
an induction type pressure sensor, including a force-measuring end face, and the force-measuring end face extends into the muffling cavity, and is in contact with the adsorbent material member, so as to detect the amount of liquid adsorbed by the adsorbent material member;
a warning device, electrically connected with the induction type pressure sensor, so as to send out warning messages according to the detection result of the inductive type pressure sensor.
[0015] Preferably, the induction type pressure sensor is fixed to an outside lateral wall of the shell, the lateral wall of the shell is provided with an opening, and the force-measuring end passes through the opening and makes contact with the adsorbent material member.
[0016] The automobile of the present invention comprises: an engine; a muffler as mentioned above, wherein the air inlet pipe of the muffler is connected to the engine.
[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the following description, or may be learned by practice of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and/or additional aspects and advantages of the invention will be understood better on the basis of the description of examples in connection with the following drawings.
Figure 1 is a schematic view showing the muffler according to an embodiment of the invention.
Figure 2 is a schematic view showing the relationship between the force on the induction type pressure sensor and the output voltage of the induction type pressure sensor according to the embodiment of the invention.
Fig. 3 is a schematic view showing the automatic control process of the muffler according to the embodiment of the present invention.
muffler 100,
housing 1, opening 101, first shell 11, mainbody 111, cover 112, fitting port 113, second shell 12,
muffling cavity 2,
air inlet pipe 3, first end 31 of the air inlet pipe, second end 32 of the air inlet pipe,
air outlet pipe 4, first end 41 of the air outlet pipe, the second end 42 of the air outlet pipe;
clapboard 5, through hole 51,
induction type pressure sensor 6,
warning device 7, display 71 and alarm 72,
controller 8,
adsorbent material member 9.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0019] The embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by way of example with reference to the accompanying drawings are exemplary, and are intended to be illustrative of the invention and are not to be construed as limiting the invention.
[0020] In the description of the present invention, it is to be understood that the terms "transverse", "thickness", "up", "down", "upright", "horizontal", "top", "bottom", " "in", "out"; or the like is based on an orientation or positional relationship shown in the figures only for ease of description of the invention and simplifying the description and not to indicate or imply that the device or element to be referred to must have a particular orientation, be constructed and operated in a particular orientation and the terms are therefore not to be construed as limiting the invention.
[0021] Furthermore, the terms "first" and "second" are used for description purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defined by "first" and "second"; may include one or more of the features, either explicitly or implicitly. In the description of the present invention, "plurality" means two or more unless otherwise specified.
[0022] In the description of the invention, the terms "install", "connect", "connect to", "fix" shall, unless expressly stated otherwise, be construed broadly, for example, either connecting fixedly or removablely, or into one; it can be a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediary, a communication between two componentsor an interaction relationship between two components. It will be understood by those skilled in the art that the specific meaning of the above-mentioned terminology may be embodied in the present invention.
[0023] The muffler 100 for an automobile according to an embodiment of the present invention is described below with reference to Figs. 1 to 3, wherein the automobile includes an engine (not shown).
[0024] As shown in Fig. 1, the muffler 100 for an automobile according to an embodiment of the present invention includes a housing 1, an air inlet pipe 3, an air outlet pipe 4, and an adsorbent material member 9. A muffling cavity 2 is defined within the housing 1.
[0025] Refer to Fig. 1, the first end 31 of the inlet pipe 3 is adapted to be connected to the engine, and the second end 32 of the air inlet pipe 3 extends into the muffling cavity 2 to direct exhaust gas from the engine into the muffling cavity 2. The first end 41 of the air outlet pipe 4 is provided in the muffling cavity 2, and the second end 42 of the air outlet pipe 4 extends out of the muffling cavity 2 to discharge the exhaust gas in the muffling cavity 2. The combined action of the air inlet pipe 3, the air outlet pipe 4 and the muffling cavity 2 causes the noise reduction of the exhaust gas. It should be noted that the structure of the air inlet pipe 3, the air outlet pipe 4, and the muffling mechanism of the muffler 100 are already known in the prior art, and will not be described in detail herein.
[0026] The exhaust gas introduced into the muffling cavity 2 by the air inlet pipe 3, includes water vapor, and a portion of the water vapor remains in the muffling cavity 2. The residual water vapor is combined with a part of the exhaust gas flowing through the muffling cavity 2, to generate a weak acid liquid which leads to corrosion of the muffler 100. The muffler 100 according to an embodiment of the present invention is thus provided with an adsorbent material member 9. In this embodiment, the adsorbent material member 9 is provided in the housing 1 and the adsorbent material member 9absorbs the liquid in the muffling cavity 2 so that the accumulated liquid in the muffler 100 can be completely adsorbed, to prevent corrosion of the muffler 100 by the accumulated liquid and thereby extend the service life of the muffler 100. The adsorbent material member 9 can be replaced after being used, so as to facilitate the maintenance of the muffler 100. Since the adsorbent material member 9 is provided in the housing 1, the silencing effect of the muffler 100 and the appearance of the muffler 100 would not be affected.
[0027] According to the muffler 100 of the embodiment of the present invention, by providing the adsorbent material member 9 in the housing 1 of the muffler 100, the accumulated liquid in the muffler 100 can be completely absorbed, and the service life of the muffler 100 can be prolonged. At the same time, the setting of the adsorbent material member 9 can prevent the noise reduction and the appearance of the muffler 100 from being affected, and is easy to replaced and maintain the adsorbent material member 9.
[0028] In some embodiments of the present invention, as shown in Fig. 1, the housing 1 includes a first shell 11 and a second shell 12 into which the air inlet pipe 3 and the air outlet pipe 4 extend. The bottom wall of the first shell 11 is provided with an opening 101. The second shell 12 is provided at the bottom wall of the first shell 11, and is communicated with the inside of the first shell 11 through the opening 101. The adsorbent material member 9 is provided in the second shell 12.
[0029] Thus, the first shell 11 and the second shell 12 define a closed muffling cavity 2, so that the exhaust gas discharged into the muffling cavity 2 is muffled by muffling cavity 2, the air inlet pipe 3 and the outlet pipe 4. The liquid in the first shell 11 is automatically collected in the second shell 12 by the action of gravity, so that the concentration and absorption of the liquid in the muffler 100 can be facilitated.
[0030] Specifically, the second shell 12 is detachably provided at the bottom wall of the first shell 11, whereby the user can replace the adsorbent material member 9 after the second shell 12 is removed, so that the adsorbent material member 9 is replaced and the muffler 100 is easy to maintain. If the adsorbent material member 9 can not be replaced in time, the user can directly remove the second shell 12 and pour out the liquid in the second shell 12. In addition, the exhaust gas discharged from the air inlet pipe 3 contains a large amount of impurities, becasue the second shell 12 is detachably provided at the bottom wall of the first shell 11, the second shell 12 can be removed to clean the first shell 11 and the second shell 12, respectively.
[0031] More specifically, the lateral area of the first shell 11 is larger than the lateral area of the second shell 12. Here, the lateral area refers to the cross-sectional area in the horizontal direction. The lateral area of the first shell 11 is larger so that the air inlet pipe 3 and the air outlet pipe 4 can be extended into the first shell 11, and the silencing effect of the muffler 100 is not affected. The lateral area of the second shell 12 is smaller so as to reduce the range of movement of the adsorbent material member 9, so that the accumulated liquid accumulated in the second shell 12 can be completely adsorbed by the adsorbent material member 9. When the lateral area of the adsorbent material member 9 is substantially equal to the lateral area of the second shell 12, the outer peripheral wall of the adsorbent material member 9 abuts against the peripheral wall of the second shell 12. At this time, no separate fixing member is needed to fix the adsorbent material member 9.
[0032] Further, a seal is provided between the first shell 11 and the second shell 12 so as to ensure the sealing performance of the muffler 100 and the silencing effect of the muffler 100.
[0033] As shown in Fig. 1, the muffler 100 further includes a partition plate 5 provided with a through hole 51 penetrating in the thickness direction of the partition plate 5. The partition plate 5 is provided at the opening 101. The partition plate 5 separates the internal space of the first shell 11 and the second shell 12. The liquid in the first shell 11 flows through the through-hole 51 and collects in the second shell 12 and is then adsorbed by the adsorbent material member 9. Since the exhaust gas discharged from the air inlet pipe 3 contains a large amount of impurities, the partitioning plate 5 is used to avoid the accumulation of impurities in the second shell 12, which would influence the adsorption action of the adsorbent material member 9.
[0034] Further, the partition plate 5 is detachably provided at the opening 101, so that the user can clean the impurities in the first shell 11 after removing the second shell 12 and the partition plate 5 in order.
[0035] As shown in Fig. 1, the first shell 11 includes a main body 111 and a cover 112. The top of the main body 111 is provided with a fitting port 113. The opening 101 is provided in the bottom wall of the main body 111. The cover 112 is detachably fitted at the fitting port 113. Thus, the user can open the cover 112 and insert his/her hand into the first shell 11 to clean the impurities inside the first shell 11. When the partition plate 5 is detachably provided at the opening 101, the user can also remove the partition plate 5 and replace the adsorbent material member 9 in the second shell 12.
[0036] As shown in Fig. 1, the muffler 100 further comprises an induction type pressure sensor 6 and a warning device 7, wherein the induction type pressure sensor 6 has a force-measuring end face (not shown). The force-measuring end face extends into the muffling cavity 2 and in contact with the adsorbent material member 9 to detect the amount of liquid adsorbed by the adsorbent material member 9. The warning device 7 is electrically connected to the induction type pressure sensor 6, and the warning device 7 issues a warning message according to the detection result of the induction type pressure sensor 6.
[0037] It should be noted that the adsorbent material member 9 can not continue to adsorb the liquid if the amount of the liquid adsorbed by the adsorbent material member 9 reaches a certain value. Therefore the warning device 7 judges whether the adsorbent material member 9 to reach saturation, in accordance with the detection result of the induction type pressure sensor 6, and then determine whether need to send alarm information.
[0038] Thus, the user can determine whether or not the absorbent material member 9 need to be replaced in accordance with the warning information, thereby realizing automatic monitoring. That is, the muffler 100 has functions of automatic detection and automatic control, so that the user can be actively and promptly reminded of the absorbent material member 9 in the muffling cavity 2, to avoid the accumulation of the liquid in the muffling cavity 2 due to the user's forgetting to replace the saturated sorbent material member 9, thereby preventing the muffler 100 from being corroded by the unadsorbed liquid. Since the muffler 100 has the function of active reminder, the muffler 100 is highly practical.
[0039] The induction type pressure sensor 6 is inexpensive and easy to be installed, and the induction type pressure sensor 6 can convert the detection result into an electrical signal output so as to facilitate the transmission, processing, storage, display, recording and control of the detection information, so as to obtain an automatic detection and an automatic control function of the muffler 100.
[0040] Specifically, the induction type pressure sensor 6 is in mechanical contact with the adsorbent material member 9, so that the degree of saturation of the adsorbent material member 9 is detected. The induction type pressure sensor 6 has a force-measuring end face in direct contact with the adsorbent material member 9. The adsorbent material member 9 changes in volume after the liquid is adsorbed, and the force exerted on the force-measuring end face by the adsorbent material member 9 also changes due to the direct contact of the adsorbent material member 9 with the force-measuring end face. The induction type pressure sensor 6 detects a change in pressure on the force-measuring end face and converts the pressure signal into an electrical signal output.
[0041] Alternatively, the induction type pressure sensor 6 is fixed to the outer side wall of the second shell 12, and the second shell 12 is provided with an opening (not shown) through which the force-measuring end face of the induction type pressure sensor 6 passes, and the force-measuring end face protrudes into the second shell 12 to contact with the absorbent material member 9.
[0042] The induction type pressure sensor 6 utilizes the Wheatstone bridge principle. Specifically, when the adsorbent material member 9 is in initial contact with the induction type pressure sensor 6, the force-measuring end face of the induction type pressure sensor 6 is forced to 0, and the bridge inside the induction type pressure sensor 6 is in equilibrium, and the induction type pressure sensor 6 has No voltage output. The force on the force-measuring end face of the induction type pressure sensor 6 is changed and the balance of the bridge inside the induction type pressure sensor 6 is broken, and a voltage is outputted, when the adsorbent material member 9 absorbs the liquid so that the volume thereof increases.
[0043] More specifically, as shown in Fig. 2, the signal output by the induction type pressure sensor 6 is an analog signal, and the value of the output electrical signal is proportional to the magnitude of the applied force by the absorbent material member 9. When the adsorbent material member 9 is saturated, the value of the electrical signal output from the induction type pressure sensor 6 is maximized, and the warning means 7 issues an alarm message.
[0044] As shown in Fig. 1, the warning device 7 includes a display 71 electrically connected to the induction type pressure sensor 6 to display the detection result of the induction type pressure sensor 6, wherein the detection result displayed by the display 71 is alarm information issued by the alarm device 7. Thus, the user can promptly observe the alarm information.
[0045] Advantageously, the display 71 may display the saturation state of the absorbent material member 9, wherein the display 71 may be of various types of parts having a display function, and is not specifically limited here. For example, the display 71 may be an LED lamp in which the saturation state of the adsorbent material member 9 is shown in a different color. The LED lamp is displayed in green when the adsorbent material member 9 is in an unsaturated state, and the LED lamp is displayed in red when the adsorbent material member 9 is in a saturated state, whereby the display 71 is simple in construction and inexpensive. For example, the display 71 may be a display capable of displaying the amount of adsorption of the adsorbent material member 9 in digital form, wherein the display 71 is displayed as "0" when the adsorbent material member 9 adsorbs nothing, the display 71 is displayed as " 100 " when the adsorbent material member 9 is in a saturated state, whereby the user can check the state of the adsorbent material member 9 in time to facilitate the preparation of the absorbent material member 9 to be replaced in advance so that the adsorbent material member 9 may be replaced in time.
[0046] As shown in Fig. 1, the alarm device 7 further includes an alarm 72 which is connected to the induction type pressure sensor 6, so as to give an alarm when the detection result detected by the induction type pressure sensor 6 reaches a predetermined value. Here, the alarm device 72 generates the alarm information of the alarm device 7. The predetermined value indicates the amount of liquid to be adsorbed when the adsorbent material member 9 needs to be replaced, and the predetermined value is specifically set according to the practical application. Thereby, the alarm information can be communicated directly and efficiently to the user.
[0047] Optionally, the alarm 72 may be a buzzer, which buzzes when the adsorbent material member 9 is saturated. Of course, the alarm 72 is not limited to a buzzer, and the alarm 72 may be a flashing lamp or the like, for example.
[0048] Advantageously, the warning device 7 is adapted to be installed in the cockpit, so that the user can obtain the warning information in time. Of course, the mounting position of the warning device 7 is not limited to this, and for example, when the warning device 7 is a buzzer, the warning device 7 is adapted to be fixed to any position of the automobile.
[0049] An automobile according to an embodiment of the present invention will be described below with reference to Figs. 1-3.
[0050] The automobile according to an embodiment of the present invention includes an engine, an engine controller, a vehicle body controller, and a muffler. The engine controller is connected with the engine to detect and control the operation of the engine. The muffler is the muffler 100 as mentioned above. The air inlet pipe 3 of the muffler 100 is connected to the engine.
[0051] In some embodiments of the present invention, the induction type pressure sensor 6 and the warning device 7 are electrically connected to one of the engine controller and the vehicle body controller. Thereby, the engine controller or the vehicle body controller can determine whether or not the alarm information needs to be issued, and controls the warning device 7 with the result of the judgment. Optionally, the warning device 7 is electrically connected to the engine controller or the vehicle body controller through a cable.
[0052] Specifically, when the induction type pressure sensor 6 and the warning device 7 are respectively electrically connected to the engine controller, the induction type pressure sensor 6 transmits its detection result to the engine controller, which calculates and analyzes the saturation state of the adsorbent material member 9. The engine controller drives the warning device 7 to issue an alarm message if the adsorbent material member 9 has reached the saturated state. When the induction pressure sensor 6 and the warning device 7 are electrically connected to the vehicle body controller, the control process of the vehicle body controller is the same as that of the engine controller, and will not be described here.
[0053] As shown in Fig. 1, the muffler 100 further includes a controller 8 electrically connected to the induction type pressure sensor 6 and the warning device 7, respectively. The controller 8 is responsive to the induction type pressure sensor 6, and control the alarm device 7 to issues a warning message, that is, the muffler 100 has a separate control unit. Optionally, the warning device 7 is electrically connected to the controller 8 by a cable. Further optionally, the controller 8 is mounted in the frame or cockpit of the automobile.
[0054] A description will be given below with reference to FIG. 2 and FIG. 3, to illustrate the liquid sorption, detection and warning process of the muffler 100 according to the preferred embodiment of the present invention. The muffler 100 includes an alarm device 7, an induction type pressure sensor 6, and a controller 8. The alarm device 7 includes a display 71 and an alarm 72. The display 71 is an LED lamp, the alarm device 72 is a buzzer, and the maximum effective voltage value outpu by the induction type pressure sensor 6 is (5 ± 5%) V.
[0055] After the accumulated liquid is generated, it is adsorbed by the adsorbent material member 9, and the adsorbent material member 9 is deformed in volume, the force of the adsorbent material member 9 against the induction type pressure sensor 6 is changed. The induction type pressure sensor 6 detects the force and transmits the detection information to the controller 8. The controller 8 analyzes the detection information and then controls the alarm device 7 to warn.
[0056] When the adsorbent material member 9 is saturated, the induction type pressure sensor 6 outputs a voltage of 5 volts, the controller 8 controls the LED lamp to be displayed in red, and controls the buzzer to sound. At this time, the user needs to replace the absorbent material member 9.
[0057] In the preferred embodiment shown in Fig. 3, the muffler 100 also has a fault diagnosis function. Specifically, when no force acts on the induction type pressure sensor 6 for a set time, or when the force does not change for a set time, the detection message issued by the induction type pressure sensor 6 to the controller 8 is invalid. In this case, the controller 8 receives this message and then drives the alarm 72 to give an alarm (the buzzer sounds) to alert the user to check the muffler 100.
[0058] According to the automobile of the embodiment of the present invention, the accumulating liquid in the muffler 100 is adsorbed by the adsorbent material member 9 provided in the muffler 100, and the service life of the muffler 100 is prolonged. By providing the function of automatic detection and automatic control to the muffler 100, the user is actively and promptly reminded to replace the adsorbent material member 9, so as to improve the practicability of the muffler 100.
[0059] In the description of the specification, the descriptions reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", "some examples" and the like means that the particular feature, structures, materials, or characteristics described in connection with the embodiment or example, are included in at least one embodiment or example of the present invention. In the present specification, a schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0060] While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations of these embodiments can be made without departing from the principles and objects of the invention, the scope of the invention is defined by the claims and their equivalents.
1. An automobile muffler for automobile comprising an engine, and the muffler comprising:
a housing, defining an muffling cavity therein;
an air inlet pipe, including a first end adapted to be connected to the engine, and a second end extending into the muffling cavity, for directing exhaust gas generated by the engine into the muffling cavity;
an air outlet pipe, including a first end arranged in the muffling cavity, and a second end extending out of the muffling cavity, so as to discharge the exhaust gas in the muffling cavity; and
an adsorbent material member, arranged in the housing, for absorbing liquid in the muffling cavity.
2. The muffler according to claim 1, wherein the housing comprises:
a first shell, the air inlet pipe and the air outlet pipe extend into the first shell, and the first shell has a bottom wall provided with an opening;
a second shell located at the bottom wall of the first shell, and communicated with the first shell through the opening, wherein the adsorbent material member is arranged in the second shell.
3. The muffler according to claim 2, wherein the second shell is disassemblely connected
to the first shell.
4. The muffler according to claim 3, wherein a sealing element is provided between the
first shell the second shell.
5. The muffler according to claim 2, further comprising a clapboard, the clapboard is
provided with a through hole penetrating the clapboard in the thickness direction
thereof, and the clapboard is located at the opening.
6. The muffler according to claim 5, wherein the clapboard is located at the opening
disassemblely.
7. The muffler according to claim 2, wherein the first shell comprises:
a mainbody, provided with an fitting port at the top of the mianbody, the opening is arranged in the bottom wall of the mainbody;
a cover, assembled at the fitting port disassemblely.
8. The muffler according to claim 1, further comprising:
an induction type pressure sensor, including a force-measuring end face, and the force-measuring end face extends into the muffling cavity, and is in contact with the adsorbent material member, so as to detect the amount of liquid adsorbed by the adsorbent material member;
a warning device, electrically connected with the induction type pressure sensor, so as to send out warning messages according to the detection result of the inductive type pressure sensor.
9. The muffler according to claim 8, wherein the induction type pressure sensor is fixed
to an outside lateral wall of the shell, the lateral wall of the shell is provided
with an opening, and the force-measuring end passes through the opening and makes
contact with the adsorbent material member.
10. An automobile, comprising:
an engine;
a muffler according to any of claims 1-9, wherein the air inlet pipe of the muffler is connected to the engine.