Title:
【発明の名称】高圧ポンプ組立体
Document Type and Number:
Japanese Patent JP2862616
Kind Code:
B2
Abstract:
A high pressure fluid pump having a reciprocating piston (20) which pumps fluid through a central passageway (28) in a valve body (24) of a valve assembly. The valve body (26) forms with an end section of the housing (16) a high pressure fluid chamber (34) axially aligned with the piston (20). The effective pressure area in the valve chamber (34) acting on the valve body (26) is greater than the effective pressure area acting on the valve body (26) from the cylinder chamber in which the piston (20) reciprocates, so that a net rearward force is exerted on the valve body (26). There are forward and rear seal members (50,52) around the valve body (26) which are caused to come into sealing engagement due to fluid pressure in the valve chamber (34).
Inventors:
ORIUIA ERU TOREMOORETSUTO JUNIA
Application Number:
JP2699990A
Publication Date:
March 03, 1999
Filing Date:
February 06, 1990
Export Citation:
Assignee:
FUROO INTERN CORP
International Classes:
F04B53/14; F04B53/10; F16J15/48; (IPC1-7): F04B53/10; F04B39/12; F16J15/48
Other References:
【文献】米国特許4412792(US,A)
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)