Processing

Please wait...

Settings

Settings

1. EP1904739 - COMMON FUEL RAIL FUEL SYSTEM FOR LOCOMOTIVE ENGINE

Office European Patent Office
Application Number 06786600
Application Date 07.07.2006
Publication Number 1904739
Publication Date 02.04.2008
Publication Kind B1
IPC
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55
Fuel-injection apparatus characterised by their fuel conduits or their venting means
02
Conduits between injection pumps and injectors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75
Other engines, e.g. single-cylinder engines
16
Engines characterised by number of cylinders, e.g. single-cylinder engines
18
Multi-cylinder engines
22
with cylinders in V-, fan-, or star-arrangement
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
02
of reciprocating-piston type
10
characterised by the piston drive
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63
Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/-F02M57/143; Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/-F02M61/193
02
Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
F02M 55/02
F02B 75/22
F02M 59/10
F02M 63/02
CPC
F02M 63/027
F02B 2075/1848
F02D 2041/3881
F02M 55/025
F02M 59/102
F02M 63/0205
Applicants GEN ELECTRIC
Inventors CASABIANCA JOSE M
GALLAGHER SHAWN MICHAEL
DILLEN ERIC RICHARD
Priority Data 11181655 14.07.2005 US
2006026505 07.07.2006 US
Title
(DE) COMMON-RAIL BRENNSTOFFEINSPRITZSYSTEM FÜR LOKOMOTIVMOTOREN
(EN) COMMON FUEL RAIL FUEL SYSTEM FOR LOCOMOTIVE ENGINE
(FR) SYSTÈME DE CARBURANT À RAMPE COMMUNE DE CARBURANT POUR MOTEUR DE LOCOMOTIVE
Abstract
(EN)
A common rail fuel injection apparatus (1) for a multi-bank, diesel locomotive engine (10). A common rail (20, 22) is disposed proximate each bank (20, 22) of cylinders (12) of the engine to provide high pressure fuel (30) to a fuel flow control apparatus (14) associated with each respective cylinder. A plurality of high-pressure fuel pumps (34) provides high-pressure fuel to at least one of the common rails. A fluid cross connection (38) is provided to convey high pressure fuel between the two common rails, thereby providing for the continued delivery of fuel to all cylinders in the event of a failure of one of the high pressure pumps. The high-pressure pumps are motivated by fuel lobes (64) located on camshaft sections (50a, 50b, 50c) adjoined at a gear driven end 58 of the camshaft (50). Camshaft sections (50d, 50e, 50f) adjoined at an idler end (60) of the camshaft carry lower torque loads than those sections having fuel lobes and may be formed from a lower strength material or may have a smaller shaft diameter.

(FR)
La présente invention concerne un appareil d’injection de carburant à rampe commune (1) pour un moteur de locomotive diesel multibloc (10). Une rampe commune (20, 22) est disposée à proximité de chaque bloc (20, 22) de cylindres (12) du moteur afin de fournir un carburant à haute pression (30) vers un appareil de commande d’écoulement de carburant (14) associé à chaque cylindre respectif. Une pluralité de pompes à carburant à haute pression (34) fournit du carburant à haute pression à au moins l’une des rampes communes. Une interconnexion de fluide (38) est prévue pour transporter du carburant à haute pression entre les deux rampes communes, ce qui fournit ainsi l’acheminement continu de carburant vers tous les cylindres dans le cas d’une défaillance de l’une des pompes à haute pression. Les pompes à haute pression sont motivées par des lobes de carburant (64) situés sur des parties d’arbres à came (50a, 50b, 50c) attenantes à une extrémité entraînée par un engrenage (58) de l’arbre à came (50). Les parties d’arbre à came (50d, 50e, 50f) attenantes à une extrémité de roue folle (60) de l’arbre à came portent des charges de couple inférieures à celles des parties ayant des lobes de carburant et peuvent être formées à partir d’un matériau à plus faible résistance ou peuvent avoir un diamètre d’arbre plus petit.