EP 0035569 A4 19820111 - RECIPROCATING PUMP.
Title (en)
RECIPROCATING PUMP.
Title (de)
VERDRÄNGUNGSPUMPE.
Title (fr)
POMPE ALTERNATIVE.
Publication
Application
Priority
JP 12048079 A 19790918
Abstract (en)
[origin: WO8100889A1] A reciprocating pump having a suction valve (92), a discharge valve (93), a pressure control valve (11) including a pressure receiving surface and supported at a valve seat (91) for supporting at least one of the valves (92) and (93), the pressure receiving surface disposed on a discharge passage (8b), the valve (11) being provided in a cylinder head (8), and a control spring (12) provided in a pressure regulator (13) for urging the valve (11) toward the valve seat (91), wherein the control valve (11) is operated as relief, safety and unloading valve through a simple construction. Thus, this pump allows a reduction in the number of components and can therefore be readily assembled in a pump body so as 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 (search report)
- GB 1547675 A 19790627 - APPLIED POWER INC
- GB 1270183 A 19720412 - KABUSHIKI KAISHI MARUYAMA SEIS [JP]
- DE 1948680 A1 19700402 - MARUYAMA MFG CO
- DE 2738177 A1 19780302 - APPLIED POWER INC
- DE 1403953 A1 19681121 - ATLAS COPCO AB
- DE 2704754 A1 19780817 - SPECK KOLBENPUMPEN FABRIK
- FR 2355224 A1 19780113 - PALL CORP [US]
- FR 1486776 A 19670630
- FR 669992 A 19291122
- DE 72385 C
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