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(11) |
EP 2 955 367 A1 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (43) |
Date of publication: |
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16.12.2015 Bulletin 2015/51 |
| (22) |
Date of filing: 27.05.2015 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA ME |
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Designated Validation States: |
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MA |
| (30) |
Priority: |
12.06.2014 PL 40853414
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Applicant: Wojskowy Instytut Techniki Inzynieryjnej im.
profesora Jozefa Kosackiego |
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50-961 Wroclaw (PL) |
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Inventor: |
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- SLIWINSKI, Cezary
51-206 Wroclaw (PL)
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| (74) |
Representative: Pawlowski, Adam |
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EUPATENT.PL
ul. Zeligowskiego 3/5
90-752 Lodz
90-752 Lodz (PL) |
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| (54) |
AN IGNITION SYSTEM OF A COMBUSTION ENGINE |
(57) An ignition system of an internal combustion engine comprising ignition electrodes
positioned in a bottom part of the engine head, characterized in that the ignition
electrodes (2, 3) are mounted on a periphery of a combustion chamber (4) in head cavities
(5), which are arranged around a cylinder (6) of an engine block (7).
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TECHNICAL FIELD
[0001] The present invention relates to an ignition system of a combustion engine, designed
to ignite the fuel-air mixture in its cylinder.
BACKGROUND
[0002] Ignition systems of a combustion engine, as disclosed herein, have not been described
in professional publications so far.
SUMMARY
[0003] In the ignition system presented herein, ignition electrodes are mounted on a periphery
of a combustion chamber in head cavities that are arranged around a cylinder of an
engine block.
BRIEF DESCRIPTION OF DRAWINGS
[0004] Further details and features of the present invention, its nature and various advantages
will become more apparent from the following detailed description of the preferred
embodiments shown in a drawing, in which:
Fig. 1 shows a longitudinal section of an internal combustion engine,
Fig. 2 shows an internal combustion engine in the section A-A of Fig. 1.
DETAILED DESCRIPTION
[0005] An ignition system of an internal combustion engine has ignition elements 1 equipped
with ignition electrodes 2, 3, which are mounted on a periphery of a combustion chamber
4 in cavities of a head 5. These cavities are arranged around a cylinder 6 of an engine
block 7. A piston 8 is located in the cylinder.
[0006] The operation of the ignition device of the internal combustion engine consists in
that at the end of the compression stroke of the fuel-air mixture in the cylinder
6 by the piston 8, a spark-over between the ignition electrodes 2, 3 occurs at the
same time. This causes the circumferential ignition of the fuel-air mixture and the
movement of the flame from the periphery of the combustion chamber 4 and the cylinder
6 towards its axis in the direction of the piston 8.
[0007] The advantage of the presented ignition system is a peripheral ignition of fuel-air
mixture which causes orientation of the exhaust gas energy towards the centre of the
cylinder, towards the piston's surface. This results in a uniform and rapid burning
of the mixture within the volume of the combustion chamber, which results in a uniform
impact of exhaust gases onto the surface of the piston. Another advantage is a reduction
of wear of the cylinder wall by propagation of the combustion process toward the surface
of the piston, as well as a reduction of the thermal load of the ignition elements
by distributing the ignition to many ignition elements (by spreading the plurality
of ignition plugs).
1. An ignition system of an internal combustion engine comprising ignition electrodes
positioned in a bottom part of the engine head, characterized in that the ignition electrodes (2, 3) are mounted on a periphery of a combustion chamber
(4) in head cavities (5), which are arranged around a cylinder (6) of an engine block
(7).