EP 4028655 A1 20220720 - DEVICE FOR FUEL INJECTION FOR INTERNAL COMBUSTION ENGINES
Title (en)
DEVICE FOR FUEL INJECTION FOR INTERNAL COMBUSTION ENGINES
Title (de)
VORRICHTUNG ZUR KRAFTSTOFFEINSPRITZUNG FÜR VERBRENNUNGSMOTOREN
Title (fr)
DISPOSITIF D'INJECTION DE COMBUSTIBLE POUR MOTEURS À COMBUSTION INTERNE
Publication
Application
Priority
- DE 202019105016 U 20190911
- EP 2020000140 W 20200803
Abstract (en)
[origin: WO2021047790A1] The invention relates to a four-stroke reciprocating internal combustion engine, comprising a supercharger (2) which provides the charge air (3) at a pressure of more than one atmosphere in a charge air line (5), and a throttle valve (6) which reduces excess pressure of the charge air (3) in order to lower the pressure and thus achieve the Venturi effect for supercooling the charge air (3) in an inlet channel (10). For injecting fuel (8), a cylinder head is equipped with a swirl chamber (13) or a pre-combustion chamber for each main combustion chamber (11), the size of which corresponds to at least 5% of the size of the main combustion chamber (11). The injection of fuel (8) only into the small swirl chamber (13) allows reliable ignition of a small amount of fuel (8) for each main combustion chamber (11) and, in combination with the supercooling of the charge air (3) in the inlet channel (10), simultaneously reduces exhaust-gas emissions and saves fuel.
IPC 8 full level
F02B 19/08 (2006.01); F02B 19/10 (2006.01); F02B 19/12 (2006.01)
CPC (source: CN EP US)
F02B 19/08 (2013.01 - CN EP US); F02B 19/1014 (2013.01 - CN EP US); F02B 19/108 (2013.01 - CN EP US); F02B 19/1095 (2013.01 - CN EP); F02B 19/12 (2013.01 - CN EP); F02B 23/10 (2013.01 - US); F02B 2023/108 (2013.01 - US); Y02T 10/12 (2013.01 - EP)
Citation (search report)
See references of WO 2021047790A1
Designated contracting state (EPC)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 202019105016 U1 20190919; CN 114391061 A 20220422; DE 102020115199 A1 20200924; EP 4028655 A1 20220720; JP 2022547398 A 20221114; US 2022112834 A1 20220414; WO 2021047790 A1 20210318
DOCDB simple family (application)
DE 202019105016 U 20190911; CN 202080063875 A 20200803; DE 102020115199 A 20200608; EP 2020000140 W 20200803; EP 20780562 A 20200803; JP 2022507653 A 20200803; US 202117645571 A 20211222