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Machine translation
1. (WO2003008796) FUEL PRESSURE PULSATION SUPPRESSING SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2003/008796    International Application No.:    PCT/JP2002/007140
Publication Date: 30.01.2003 International Filing Date: 15.07.2002
IPC:
F02M 55/04 (2006.01), F02M 63/00 (2006.01), F02M 69/46 (2006.01)
Applicants: USUI KOKUSAI SANGYO KAISHA LTD. [JP/JP]; 131-2, Nagasawa, Shimizu-cho Sunto-gun, Shizuoka 411-8610 (JP) (For All Designated States Except US).
TSUCHIYA, Hikaru [JP/JP]; (JP) (For US Only).
OGATA, Tetsuo [JP/JP]; (JP) (For US Only).
MIZUNO, Kazuteru [JP/JP]; (JP) (For US Only).
TAKIKAWA, Kazunori [JP/JP]; (JP) (For US Only).
SERIZAWA, Yoshiyuki [JP/JP]; (JP) (For US Only).
IMURA, Izumi [JP/JP]; (JP) (For US Only).
NISHIZAWA, Hiroyuki [JP/JP]; (JP) (For US Only)
Inventors: TSUCHIYA, Hikaru; (JP).
OGATA, Tetsuo; (JP).
MIZUNO, Kazuteru; (JP).
TAKIKAWA, Kazunori; (JP).
SERIZAWA, Yoshiyuki; (JP).
IMURA, Izumi; (JP).
NISHIZAWA, Hiroyuki; (JP)
Agent: NINOMIYA, Masataka; 6-12, Nihonbashikayabacho 1-chome Chuo-ku, Tokyo 103-0025 (JP)
Priority Data:
2001-214956 16.07.2001 JP
Title (EN) FUEL PRESSURE PULSATION SUPPRESSING SYSTEM
(FR) SYSTEME DE SUPPRESSION DE PULSATIONS DE PRESSION D'UN COMBUSTIBLE
Abstract: front page image
(EN)A fuel pressure pulsation suppressing system of a fuel piping system for a gasoline engine having a plurality of cylinders disposed in straight V−shape or horizontal opposed shape with delivery pipes for distributing fuel to the cylinders of return−less type without a return circuit to a fuel tank, wherein the cross section of at least one of communication pipes forming the delivery pipes forms a flexible absorbing face, an orifice portion for damping pressure pulse wave caused by fuel injection is installed near a connection part between at least one delivery pipe and a supply pipe or a connection pipe, and the cross sectional area of the flow passage of the orifice should desirably be 0.2 times the cross sectional area of the flow passage of the connection pipe or the supply pipe or below.
(FR)L'invention concerne un système de suppression des pulsations de pression d'un combustible d'un circuit de tuyauteries de combustible pour moteur à essence. Ledit système de suppression comporte une pluralité de cylindres disposés en forme de V érigés ou en forme opposée horizontale, des tuyaux de distribution du combustible aux cylindres de type sans retour exempts d'un circuit de retour vers un réservoir de combustible. La section transversale d'au moins un tuyau de communication constituant les tuyaux de distribution forme une surface d'absorption flexible. Une portion d'orifice d'amortissement de l'onde d'impulsion de pression provoquée par l'injection de combustible est installée à proximité d'une partie de connexion entre au moins un tuyau de distribution et un tuyau d'alimentation ou tuyau de connexion, et la zone transversale du passage du flux de l'orifice est, de préférence, 0,2 fois supérieure à celle du passage du flux du tuyau de connexion ou du tuyau d'alimentation.
Designated States: JP, US.
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)