(19)
(11) EP 0 245 189 A2

(12) EUROPEAN PATENT APPLICATION

(43) Date of publication:
11.11.1987 Bulletin 1987/46

(21) Application number: 87560001.7

(22) Date of filing: 07.05.1987
(51) International Patent Classification (IPC)4F02B 75/06, F02B 41/00
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 07.05.1986 ES 554701
29.05.1986 ES 294449

(71) Applicant: Tomas Martinez, Miguel
Benetuser Valencia (ES)

(72) Inventor:
  • Tomas Martinez, Miguel
    Benetuser Valencia (ES)

(74) Representative: Sanz-Bermell Martinez, Alejandro 
Játiva, 4
46002 Valencia
46002 Valencia (ES)


(56) References cited: : 
   
       


    (54) Proceeding to produce positive inertial effects and a differentiated motor behaviour in internal combustion engines


    (57) Proceeding to produce positive inertial effects and differentiated driving behaviour in internal combustion engines.

    It consists of constituting a connecting rod with different characteristics to thos know, which has a centre of gravity displaced towards the rotation side of the motor.

    It has a greater weight.

    It has an oblique shape which favours the irregular distribution of the mass with regard to the vertical axle boltpad of the crankshaft.


    The inertial effect increases with the weight of the connecting rod.
    To be applied to internal combustion engines and to any other connecting rod-crank.


    Description


    [0001] The present Patent of Invention consists in a new system to produce a greater power and to eleminate the oscillation (tinkling) of the pistons in an internal combustion engine, thus offering substantial advantages in any mechanism of connecting rod-crank.

    [0002] This system eleminates a series of inconveniences which are frecuently produced specially in Diesel-motors, but also in those of petrol.

    [0003] The internal combustion or the Diesel motor work in the same way with regard to the running of the connecting rod as impulse transmitters which is produced in the piston by reason of the abrupt combustion of the mixture contained in the chamber.

    [0004] Now, this is more frequently the case in engines of Diesel cycle which produce a tinkling noise (oscillation) of the pistons, than in the petrol engines where it is produced with less intensity.

    [0005] As in all the know cases the piston, the connecting rod and the crankshaft are three elements that though they are subject to modifications of thickness, length, and in the case of the piston of the shope of its head, they fulfill the same function which cannot avoid that in these motors are produced the same disadvantages which existed always, though the used materials be of very best quality.

    [0006] The device in question produces an advantage on a series of inconveniences which arise frequently in all Diesel motors, and very often in those of petrol.

    [0007] They are principally the vibration produced by the compensated inertias lengthwise the crankshaft, and the movementof then connecting rods which the piston supports alternately on the opposite sides of the cylinder, being the effect the tinkling or oscilation of the piston.

    [0008] In order to make the following explanation clearer and more comprehensible, is joined to this specification two sheets of drawings forming part of same, which in seven figures represents, as way of example, all which constitutes the essence of the present Patent of Invention and on which is shown the principle of its method of operation.

    [0009] The present invention constitutes a motor provided with connecting rods which have a specially characterized shape, because they increase the received force owing to the inertial effects that add up and favour the motive effects.

    [0010] Said connecting rod cansists of a piece the shape of which causes a displacement of its gravity centre subject to the axle of the bolt centres to the crankshaft respectively, provided with a rigid structure, and provided as the other connecting rods with two devices at its ends to be fixed to the piston on the one hand, and to the crankshaft on the other.

    [0011] The performance of this piece in a motor will be the following:

    [0012] Once the piston begins its downward course by reason of the thrust that provides the sudden exidation of the compressed misture of the chamber, it will produce a force on the connecting rod which same transmits on the crankshaft.

    [0013] Owing to the displacement of the gravity centre of the connecting rod (of an original design and greater weight), it will produce some inertial effects resulting in an oblicue thrust influencing directly on the crankshaft in a favourable sense, i.e. towards the outside of the crankshaft rotation.

    [0014] At the lower. part, which is the one joined to the crankshaft, will be produced a force in a favorable sense to the crankshaft rotation owing to the mentioned inertial effects which effect favourably the overcoming of the dead points, specially the upper one.

    [0015] Now, if one keeps in mind that the yield of an internal combustion engine of rapid rotation rarely surpasses 30% of the power employed for its movement, one can clearly deduce that there exists a certitude to increase by means of this method the motor yield in a proportion to the energy consumption arisen from the explained positive inertial effects, produced precisely by the displacement of the gravity centre of the connecting rod.

    [0016] Though the motor power is already considerably increased by virtue of the regularity that produces the thrust effected by a crankshaft provided with a connecting rod in very favourable conditions, the motor turning moment is still more increased by this system. This makes possible that the minimum speed of the motor, which at another moment and with a conventional motor would normally not go down more than 800 rpm in this one it is possible that the regular working at ticking over can be lowered to less that 500 rpm, which no motor (of four cylinder9 of traditional structure regularly supports, taking into account that from this speed is obtained a sufficient turning moment, and a motor capacity to recuperate revolutions which according to the "present setting out is considered as "amazing".

    [0017] Fig. 2 shows a schema of the position the proposed connecting rod occupies and the shape it can take, opposite to the one of fig. 1 which is the classic one.

    [0018] On this fig. 2 can clearly be appreciated that though the piston thrust is produced downwards, being this the direction of its course from its upper dead point, the resultant of the inertial effects will be produced in an oblique way according the line drawn with (1) (appreciatively) so that they will provide a quicker rotation of the crankshaft.

    [0019] Figures 3, 4, 5 and 6 show a development of the piston course, first downward and the upward.

    [0020] Fig. 4 reproduces the moment at which the downward course of the piston has reached the middle, and on which can be seen that the distance during the descent of the piston from the centre of the crankshaft rotation to the gravity centre of the connecting rod, which is the inertial power point pressing downwards, constitutes a greater turning moment owing to the greater distance of the gravity centre thus favouring the motive effects.

    [0021] FIg. 5 represents an aspect at which the piston begins its upward course, marked with 7.

    [0022] Fig. 6 represents the same aspect of the ensemble when the piston is at the middle of its upward course, and on which can be seen marked with (8) the gravity centre of the'. connenting rod, which is situated at a much shorter distance from the rotation centre of the crankshaft, as represented with (9), and with regard to the case of fig. 4.

    [0023] On the figure 7 can be appreciated its shape based on three fundamental axles, viz.:

    - Angle marked with A. It determines the inclination of the foot of the connecting rod, which will be of seven degrees, more or less a tolerance of four degrees.

    -Angle marked with B. It determines the inclination of the body o.f the connecting rod and this will be of sixteen degrees, more or less a tolerance of sic degrees.

    - Angle marked with C. It determines the inclination of the head of the connecting rod and this will be of thirty-three degrees, more or less a tolerance of seven degrees.



    [0024] All this angles are taken on the vertical axle of the connecting rod.

    [0025] Said connecting rod will work in the motor as follows:

    [0026] Once the piston begins its downwards course by reason of the thrust the expansion of the compressed mixture in the chamber is providing, will be produced a power on the connecting rod, which same transmits on the crankshaft with different thrust.

    [0027] Therefore is modified the disposition of the connecting rod with regard to the crankshaft in relation to the customar ones.

    [0028] By this disposition is produced the following advantage:

    [0029] THe tinkling (oscillation) cannot be produced because the resulting thrust of the connecting rod on the crankshaft is produced in an oblique way and is not burdened against the body of the crankshaft directly, but produces the force on an eccentric and external point of the crankshaft, which allows a grater positive inertial resultant than if the force is initiated on the upper port, so that the variations of the motor rotation, as well for its increase of speed as for its retention, do not produce any tinkling/oscillation in the piston.

    [0030] From the above can be followed that by applying the present proceeding to an internal combustion engine, its yield will be increased.

    [0031] There has also to be mentioned here, that once this proceeding is used, it has to be equipped with a suitable distribution diagram which permits the feeding times to be the most favourable.

    [0032] In order to obtain the mentioned yield, one has to count necessarily with a specially designed connecting rod so that the mentioned effects are produced.

    [0033] It has to be pointed out that with this proceeding is increase the yield of the motors having as object the rotation on the crankshaft, and any mechanism or device of connecting rod-crank. Thus, this method is very efficient for example in internal combustion engines, pumps or compressors.

    [0034] From the above explanation can be followed that by applying connecting rods as the specified ones to an internal combustion engine, the yield fo same will be increased in proportion to the displacement of its gravity centre and to the weight of the connecting rod.

    [0035] Thus, one has to count necessarely with a connecting rod having the abovesaid characteristics. Once the proposed angular deviations are specified, this, which is variable according to the characteristics of each motor, and according to the Searched yield, will be applied in each case.

    [0036] It is convenient to point out that by means of this device is encreased the yield of the motors, the object of which is the rotation on the crankshaft.

    [0037] By means of the present proceeding can be obtained a combustion engine of rapid revolution, an advantage of its remarkably higher yield.

    [0038] It has be pointed out that in the present Patent of Invention the drawings as well as the explanation given in the contents of this specification, are made by way of example only, being comprised in it all the modifications which have not as result to vary the explained essential contents.

    [0039] Once explained the working characteristics of the present proceeding, there is specified the protection of this Patent of Invention in the following


    Claims

    1.- Proceeding to produce positive inertial effects and a differentiated motor behaviour in internal combustion engines characterized because the connecting rods have an asymetric shape which displaces the gravity centre with regard to the axle piston-pad of the crankshaft.
     
    2a.- Proceeding characterized according to claim 1, because there are produced additional inertial effects owing to the greater weight of the. connecting rod, this weight being influenced through its gravity centre.
     
    3.- Proceeding characterized according to the two previous claims, because the additional inertial effects of the connecting rod perform a greater lateral pressure of the piston on the wall of the corresponding cylinder, which avoids that there arises the oscillation-tinkling of the piston flap.
     
    4.- Connecting rod characterized because it is constituted by a piece provided at its ends with devices to be fastened at the piston and to the crankshaft which considering in vertical the upper fixing device to the piston, and in line with the fastening to the crankshaft, is introduced an inclination of:

    - 7Q ( - 4Q) in the fixing of the angle of the connecting rod foot.

    - The body of the connecting rod is inclined 160 ( ±6Q).

    - The head of the connecting rod is inclined 330 ( ± 7Q), in such a way that when the upper fastening of the connecting rod receives the pressure of the piston produced by the explosion or combustion of the motor, there occurs a thrust which exerts a more favourable turning moment, owing to the resultant of the thrust force also opened in rotation sense and of greater value.


     
    5.- Connecting rod characterized according to the fourth claim, because at the upper dead point is produced by reason of the favourable inclination of the connecting rod an exterior resultant from the fastening point of the connecting rod to the crankshaft be vertically aligned.
     




    Drawing