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1. WO1996004476 - COMBUSTION GAS SEAL ASSEMBLY ADAPTED FOR A FUEL INJECTOR

Publication Number WO/1996/004476
Publication Date 15.02.1996
International Application No. PCT/US1995/008770
International Filing Date 13.07.1995
IPC
F02M 61/14 2006.01
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 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
F02M 2200/858
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
2200Details of fuel-injection apparatus, not otherwise provided for
85Mounting of fuel injection apparatus
858sealing arrangements between injector and engine
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 F02M39/00 - F02M57/00 or F02M67/00
14Arrangements of injectors with respect to engines; Mounting of injectors
Y02T 10/123
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
10Road transport of goods or passengers
10Internal combustion engine [ICE] based vehicles
12Technologies for the improvement of indicated efficiency of a conventional ICE
123Fuel injection
Applicants
  • CATERPILLAR INC. [US/US]; 100 N.E. Adams Street Peoria, IL 61629-6490, US
Inventors
  • BRUNING, E., Eugene; US
Agents
  • BECKER, Mark, D. ; 100 N.E. Adams Street Peoria, IL 61629-6490, US
Priority Data
08/282,94229.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMBUSTION GAS SEAL ASSEMBLY ADAPTED FOR A FUEL INJECTOR
(FR) DISPOSITIF D'ETANCHEITE PAR RAPPORT AUX GAZ DE COMBUSTION DESTINE A UN INJECTEUR DE CARBURANT
Abstract
(EN)
A combustion gas seal assembly (10) adapted for a fuel injector (12) installed in a cylinder head (16) of an engine (18). The seal assembly (10) includes a hollow adapter (22) adapted to be connected to the cylinder head (16), an injector case (30) positioned in the adapter (22), and a flexible annular seal (26) positioned between the case (30) and the adapter (22). The case (30) and adapter (22) each define opposed annular seat portions (62, 64) contacting one another. At least one of the seat portions (62, 64) of the case (30) and the adapter (22) defines an annular groove (66) in which the flexible annular seal (26) is positioned. The combustion gas seal assembly (10) prevents pressurized combustion gas, originating from an engine combustion chamber, from leaking past the interface between the case (30) and the cylinder head (16). The assembly (10) also facilitates low cost retrofitting or adaptation of new or different fuel injectors to an existing cylinder head of a convention engine.
(FR)
L'invention concerne un système (10) d'étanchéité par rapport aux gaz de combustion destiné à un injecteur (12) de carburant installé dans une culasse (16) d'un moteur (18). Le dispositif d'étanchéité (10) comprend un adaptateur creux (22) prévu pour être monté sur la culasse (16), un manchon (30) d'injecteur placé dans l'adaptateur (22) et un joint d'étanchéité flexible annulaire (26) placé entre le manchon (30) et l'adaptateur (22). Le manchon (30) et l'adaptateur (22) ont chacun des parties siège annulaires opposées (62, 64) en contact mutuel. Au moins une des parties siège (62, 64) du manchon (30) et de l'adaptateur (22) présente une rainure annulaire (66) dans laquelle se place le joint d'étanchéité flexible annulaire (26). Le dispositif (10) d'étanchéité aux gaz de combustion empêche les gaz de combustion sous pression produits dans la chambre de combustion du moteur, de s'échapper par l'interface entre le manchon (30) et la culasse (16). Le dispositif (10) facilite également l'adaptation ou la modification à faible coût d'injecteurs de carburant nouveaux ou différents afin de les utiliser sur une culasse existante d'un moteur conventionnel.
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