Title:
INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2019/135297
Kind Code:
A1
Abstract:
The purpose of the present invention is to increase the volume of exhaust gas that is discharged from a combustion chamber to an intake port and reliably ensure the volume of exhaust gas that is re-introduced to the combustion chamber, in an intake re-open type internal EGR. An engine (1) comprises: an intake port (7) that supplies air to a combustion chamber (3); an intake valve (10) that opens the intake port (7); an exhaust port (8) that discharges, from the combustion chamber (3) to the outside, exhaust gas generated by combustion of the fuel gas; an exhaust valve (11) that opens and closes the exhaust port (8); and an intake valve cam (23A) that drives the intake valve (10). The intake valve cam (23A) is configured so as to have a period during which the intake valve (10) opens before the exhaust valve (11), after compression top dead center , and the intake valve (10) opens during the exhaust stroke in which exhaust gas is discharged from the exhaust port (8).
Inventors:
IMAMORI YUSUKE (JP)
YAMADA SATOSHI (JP)
HOTTA KAZURO (JP)
YAMADA SATOSHI (JP)
HOTTA KAZURO (JP)
Application Number:
PCT/JP2018/029520
Publication Date:
July 11, 2019
Filing Date:
August 07, 2018
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F02M26/01; F01L1/08; F01L3/02; F02B77/11; F02F1/24; F02F1/42; F02M26/50
Foreign References:
| JPS562005U | 1981-01-09 | |||
| JP2013044266A | 2013-03-04 | |||
| JP2008518144A | 2008-05-29 | |||
| JP2015092065A | 2015-05-14 | |||
| JP2016217249A | 2016-12-22 | |||
| JP2017227196A | 2017-12-28 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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