EP 0900334 B1 20030827 - PRESSURE VALVE
Title (en)
PRESSURE VALVE
Title (de)
DRUCKVENTIL
Title (fr)
SOUPAPE DE REFOULEMENT
Publication
Application
Priority
- DE 9800084 W 19980112
- DE 19710891 A 19970315
Abstract (en)
[origin: DE19710891A1] The invention relates to a pressure valve for installing in a feed pipe (7) between a pump working chamber (9) of a fuel-injection pump and an injection point (11) on the internal combustion engine to be supplied with fuel. The pressure valve comprises a valve body (13) with a first valve seat (17) and an axial through channel, a pressure valve closing member (19) which opens in the direction of the injection point (11), against the force of a first valve spring (23) located in said through channel (15). The pressure valve closing member (19) has a sealing surface (21) which works in conjunction with the first valve seat (17). The pressure valve also has an axial through bore (25) in the pressure valve closing member (19). This through bore (25) can be closed by a return valve (27), said return valve opening in the direction of the pump working chamber (9) and having a second valve spring (33). A fuel channel is formed between the radially exterior peripheral surfaces of each of the first and second valve springs (23, 33) and the housing walls surrounding them for the fuel to flow through without being throttled, thus ensuring an optimal unthrottled flow of fuel through the pressure valve.
IPC 1-7
IPC 8 full level
F02M 59/46 (2006.01)
CPC (source: EP US)
F02M 59/462 (2013.01 - EP US); Y10T 137/7774 (2015.04 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19710891 A1 19980917; DE 59809397 D1 20031002; EP 0900334 A1 19990310; EP 0900334 B1 20030827; JP 2000511264 A 20000829; US 6196201 B1 20010306; WO 9841755 A1 19980924
DOCDB simple family (application)
DE 19710891 A 19970315; DE 59809397 T 19980112; DE 9800084 W 19980112; EP 98902953 A 19980112; JP 53999798 A 19980112; US 18093499 A 19990430