EP 1183467 A1 20020306 - HIGH PRESSURE PUMP WITH IMPROVED SEALING
Title (en)
HIGH PRESSURE PUMP WITH IMPROVED SEALING
Title (de)
HOCHDRUCKPUMPE MIT VERBESSERTER DICHTUNG
Title (fr)
POMPE A HAUTE PRESSION A ETANCHEITE PERFECTIONNEE
Publication
Application
Priority
- FR 0001465 W 20000529
- FR 9907214 A 19990608
Abstract (en)
[origin: WO0075514A1] The invention concerns a pump for pumping a first liquid, called transferred liquid, and comprising a main unit (18) for pumping the transferred liquid actuated by an auxiliary unit (20) pumping a second liquid, called working liquid. The main (18) and auxiliary (20) units are housed in a casing (16) generally cylindrical in shape. The main unit (18) comprises at least two valves (36, 38), for respectively sucking up and delivering the transferred liquid, borne by a valve body (40) housed in the casing (16). Each valve (36, 38) communicates with two chambers, respectively a suction chamber (46) and a delivery chamber (48) for the transferred liquid, defined by opposite surfaces (50, 52) provided in the valve body (40) and the casing (16). Said surfaces (50, 52) comprise two matching shoulders (50E, 52E) pressed against each other so as to form a tight joint plane separating the suction chamber (46) and the delivery chamber (48). The invention is applicable to a high pressure pump for supplying a motor vehicle engine with fuel.
IPC 1-7
IPC 8 full level
F04B 53/00 (2006.01); F02M 37/12 (2006.01); F04B 1/14 (2006.01); F04B 43/067 (2006.01)
CPC (source: EP US)
F02M 37/12 (2013.01 - EP US); F04B 1/145 (2013.01 - EP US); F04B 43/067 (2013.01 - EP US)
Citation (search report)
See references of WO 0075514A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2794811 A1 20001215; FR 2794811 B1 20030207; DE 60002066 D1 20030515; DE 60002066 T2 20040304; EP 1183467 A1 20020306; EP 1183467 B1 20030409; ES 2197098 T3 20040101; JP 2003501586 A 20030114; JP 4527916 B2 20100818; US 6659734 B1 20031209; WO 0075514 A1 20001214
DOCDB simple family (application)
FR 9907214 A 19990608; DE 60002066 T 20000529; EP 00936967 A 20000529; ES 00936967 T 20000529; FR 0001465 W 20000529; JP 2001501764 A 20000529; US 93762401 A 20010927