EP 0035569 B1 19840502 - RECIPROCATING PUMP
Title (en)
RECIPROCATING PUMP
Publication
Application
Priority
JP 12048079 A 19790918
Abstract (en)
The reciprocating pump has a suction valve (92), a discharge valve (93) and a pressure control valve (11). These include a pressure receiving surface and are supported at a valve seat (91) which seats at least one of the valves (92,93). The pressure receiving surface is disposed on a discharge passage (8b). The valve (11) is provided in a cylinder head (8). A control spring (12) provided in a pressure regulator (13) biasses the valve (1 (11) toward the valve seat (91). The control valve (11) is operated as a relief, safety and unloading valve. This allows a reduction in the number of components and can therefore be readily assembled in a pump body to reduce its cost and weight.
IPC 1-7
IPC 8 full level
F04B 39/10 (2006.01); F04B 39/12 (2006.01); F04B 49/24 (2006.01); F04B 53/10 (2006.01)
CPC (source: EP)
F04B 49/24 (2013.01); F04B 53/103 (2013.01); F04B 53/109 (2013.01)
Citation (examination)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
WO 8100889 A1 19810402; DE 3067664 D1 19840607; EP 0035569 A1 19810916; EP 0035569 A4 19820111; EP 0035569 B1 19840502; JP S5644480 A 19810423; JP S6047479 B2 19851022
DOCDB simple family (application)
JP 8000009 W 19800125; DE 3067664 T 19800125; EP 80900419 A 19810408; JP 12048079 A 19790918