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1. EP0313583 - FUEL INJECTION FOR DIRECT-INJECTION DIESEL ENGINE

Office European Patent Office
Application Number 87905592
Application Date 31.08.1987
Publication Number 0313583
Publication Date 03.05.1989
Publication Kind B1
IPC
F02B 3/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
F02B 3/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
08Methods of operating
F02B 23/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23Other engines characterised by special shape or construction of combustion chambers to improve operation
02with compression ignition
F02B 23/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23Other engines characterised by special shape or construction of combustion chambers to improve operation
02with compression ignition
06the combustion space being arranged in working piston
F02F 7/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
FCYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
7Casings, e.g. crankcases
F02M 61/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
61Fuel injectors not provided for in groups F02M39/-F02M57/94
14Arrangements of injectors with respect to engines; Mounting of injectors
CPC
F02B 3/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
F02B 3/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
08Methods of operating
F02B 23/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23Other engines characterised by special shape or construction of combustion chambers to improve operation
02with compression ignition
06the combustion space being arranged in working piston
F02B 23/0624
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23Other engines characterised by special shape or construction of combustion chambers to improve operation
02with compression ignition
06the combustion space being arranged in working piston
0618having in-cylinder means to influence the charge motion
0624Swirl flow
F02B 23/0663
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23Other engines characterised by special shape or construction of combustion chambers to improve operation
02with compression ignition
06the combustion space being arranged in working piston
0645Details related to the fuel injector or the fuel spray
0663having multiple injectors per combustion chamber
F02B 2275/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
2275Other engines, components or details, not provided for in other groups of this subclass
14Direct injection into combustion chamber
Applicants ELSBETT L
ELSBETT G
ELSBETT KLAUS
Inventors ELSBETT LUDWIG
ELSBETT GUENTER
ELSBETT KLAUS
Designated States
Priority Data 3629437 29.08.1986 DE
8700390 31.08.1987 DE
Title
(DE) BRENNSTOFFEINSPRITZUNG FÜR D.I.-DIESELMOTOR MIT MEHREREN DÜSEN
(EN) FUEL INJECTION FOR DIRECT-INJECTION DIESEL ENGINE
(FR) INJECTION DE CARBURANT POUR MOTEUR DIESEL A INJECTION DIRECTE
Abstract
(EN)
In order to reduce smoke emission from diesel engines it is necessary that the necessary mixing of air and gasified fuel is completed prior to the main combustion. Furthermore, the emission of noise is also minimized by the fact that the increase in pressure during combustion is not greater, per angular degree of the crankshaft, than the maximum pressure increase during the compression stroke.

(FR)
La réduction des émissions de fumée par les moteurs diesel présuppose que le mélange nécessaire d'air et de carburant gazéifié soit achevé avant la combustion principale. D'autre part, l'émission de bruit est également réduite au minimum par le fait que l'augmentation de pression pendant la combustion n'est pas supérieure, par degré d'angle de vilebrequin, à l'augmentation maximale de pression pendant la course de compression.