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Machine translation
1. (WO1980002180) SAFETY CHECK VALVE FOR UNIT FUEL PUMP-INJECTOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002180    International Application No.:    PCT/US1979/000215
Publication Date: 16.10.1980 International Filing Date: 09.04.1979
IPC:
F02M 57/02 (2006.01), F02M 59/46 (2006.01)
Applicants:
Inventors:
Priority Data:
US79/00215 09.04.1979 WO
Title (EN) SAFETY CHECK VALVE FOR UNIT FUEL PUMP-INJECTOR
(FR) CLAPET DE SECURITE POUR UN DISPOSITIF D"INJECTEUR-POMPE DE COMBUSTIBLE
Abstract: front page image
(EN)In a fuel injector including an injector housing (10) having spray orifices (70), a valve seat (68) within the body (10) and closely adjacent the spray orifices (70), a valve (66) movable within the body (10) between positions seated against the seat (68) and spaced from the seat (68), means (80) within the body (10) biasing the valve (66) towards the position against the seat (68), means (22) for receiving fuel at a first pressure, means (12) for increasing the pressure of the fuel to a second pressure higher than the first pressure, means (46, 60, 58, 62) for delivering the fuel at the second pressure to the valve (66), means (74) responsive to the receipt of fuel at the second pressure for moving the valve (66) from the position against the seat (68) to the position spaced from the seat (68), the improvement including means (50, 54) for limiting the delivery of fuel at the first pressure from the receiving means (22) to the valve (66) and for limiting the flow of fuel from the valve (66) to the receiving means (22).
(FR)Un injecteur de combustible comprend un corps d"injecteur (10) ayant des orifices d"atomisation (70), un siege de soupape (68) dans le corps (10) et adjacent aux orifices d"atomisation (70), une soupape (66) mobile dans le corps (10) entre une position d"appui contre le siege (68) et une position ecartee du siege (68), des moyens (80) dans le corps (10) poussant la soupape (66) vers la position d"appui contre le siege (68), des moyens (22) de reception du combustible a une premiere pression, des moyens (12) d"augmentation de la pression du combustible a une seconde pression superieure a la premiere pression, des moyens (46, 60, 58, 62) d"alimentation en combustible a la seconde pression de la soupape (66), des moyens (74) sensibles a la reception du combustible a la seconde pression pour deplacer la soupape (66) de la position contre le siege (68) vers la position ecartee du siege (68), l"amelioration comprenant des moyens (50, 54) de limitation de l"alimentation en combustible a la premiere pression des moyens de reception (22) de la soupape (66) et de limitation du debit de combustible de la soupape (66) vers les moyens de reception (22).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)