EP 1183466 B1 20031029 - IMPROVED HIGH PRESSURE PUMP
Title (en)
IMPROVED HIGH PRESSURE PUMP
Title (de)
HOCHDRUCKPUMPE
Title (fr)
POMPE A HAUTE PRESSION PERFECTIONNEE
Publication
Application
Priority
- FR 0001443 W 20000526
- FR 9907213 A 19990608
Abstract (en)
[origin: WO0075513A1] The invention concerns a pump designed to pump a first liquid, called transferred liquid, comprising a main unit (18) for pumping the transferred liquid actuated by an auxiliary unit (20) for pumping a second liquid, called working liquid. The auxiliary unit (20) comprises a piston (54) provided with an axial perforation (74) for circulating working liquid between a tank (58) and a compression chamber (34). The piston (54) further comprises a valve (76) for closing the perforation (74) housed in said perforation between two ends thereof in permanent communication with the tank (58) and the compression chamber (34) respectively. The valve (76) opens when the pressure of the working liquid in the tank (58) exceeds that of the working liquid in the compression chamber (34) and closes in the opposite situation. The invention is applicable to a high pressure pump for supplying fuel to a motor vehicle engine.
IPC 1-7
IPC 8 full level
F02M 37/12 (2006.01); F02M 59/04 (2006.01); F02M 59/12 (2006.01); F04B 1/14 (2006.01); F04B 11/00 (2006.01); F04B 43/02 (2006.01); F04B 43/067 (2006.01); F04B 53/10 (2006.01)
CPC (source: EP US)
F02M 37/12 (2013.01 - EP US); F04B 1/14 (2013.01 - EP US); F04B 43/067 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
FR 2794810 A1 20001215; FR 2794810 B1 20010831; DE 60006232 D1 20031204; DE 60006232 T2 20040422; EP 1183466 A1 20020306; EP 1183466 B1 20031029; ES 2209898 T3 20040701; JP 2003501585 A 20030114; JP 4542294 B2 20100908; US 6648608 B1 20031118; WO 0075513 A1 20001214
DOCDB simple family (application)
FR 9907213 A 19990608; DE 60006232 T 20000526; EP 00936947 A 20000526; ES 00936947 T 20000526; FR 0001443 W 20000526; JP 2001501763 A 20000526; US 936201 A 20011210