EP 3380709 A1 20181003 - FUEL/AIR SYSTEM FOR COMBUSTION ENGINES
Title (en)
FUEL/AIR SYSTEM FOR COMBUSTION ENGINES
Title (de)
KRAFTSTOFF/LUFT-SYSTEM FÜR VERBRENNUNGSMOTOREN
Title (fr)
SYSTÈME DE CARBURANT/D'AIR POUR MOTEURS À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102015015518 A 20151126
- EP 2016078878 W 20161125
Abstract (en)
[origin: WO2017089581A1] The injection methods for diesel and DI Otto engines are currently exclusively based on a purely hydraulic jet atomisation, and in the DI Otto method there are the rudiments of an air-supported pre-chamber. In order to improve the atomisation quality, the system pressures are continuously increased, with the diesel injection occurring at over 2500 bar. This borders on mechanical and physical limits. The new solution consists of the supply of pressurised air or other gaseous substances into an air/gas groove (4), which is arranged in the nozzle body (1) or the apex (3) of the nozzle needle (2) directly at the combustion chamber-side end of the injection nozzle. The breaking up of the fuel molecules is effectively supported by the pressurised air, until it is possible to blow a continuous air flow through the nozzle holes (9). A pump unit formed by a fuel pump (20) and a pressurised air pump (21) is also associated with this solution.
IPC 8 full level
F02D 19/06 (2006.01); F02M 43/02 (2006.01); F02M 43/04 (2006.01); F02M 61/18 (2006.01); F02M 67/10 (2006.01); F02M 67/12 (2006.01)
CPC (source: EP)
F02D 19/0694 (2013.01); F02M 43/02 (2013.01); F02M 43/04 (2013.01); F02M 55/008 (2013.01); F02M 61/042 (2013.01); F02M 61/10 (2013.01); F02M 67/12 (2013.01); Y02T 10/30 (2013.01)
Citation (search report)
See references of WO 2017089581A1
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)
WO 2017089581 A1 20170601; DE 102015015518 A1 20170614; DE 102015015518 B4 20230427; EP 3380709 A1 20181003
DOCDB simple family (application)
EP 2016078878 W 20161125; DE 102015015518 A 20151126; EP 16805046 A 20161125