Title:
PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/031767
Kind Code:
A1
Abstract:
A pump device (100) is provided with a flowrate control valve (2) that recirculates, to the intake side, a portion of a working fluid discharged from a pump (1), wherein the flowrate control valve (2) is provided with: a valve body (21); a first fluid pressure chamber (23) provided facing the end surface of one side of the valve body (21) and connected with a discharge channel (82); a second fluid pressure chamber (24) provided facing the end surface of the other side of the valve body (21) and connected with the discharge channel (82); a biasing member (22) that is accommodated in the second fluid pressure chamber (24) and biases the valve body (21) in the valve closure direction; and a pressure regulator (3) that is provided to a connection path (84) connecting the second fluid pressure chamber (24) with the discharge channel (82) and regulates the pressure inside the second fluid pressure chamber (24).
Inventors:
AKATSUKA KOICHIRO (JP)
FUJITA TOMOYUKI (JP)
NAKAGAWA TOMOYUKI (JP)
KATOU FUMIYASU (JP)
GOMI HIROKI (JP)
FUJITA TOMOYUKI (JP)
NAKAGAWA TOMOYUKI (JP)
KATOU FUMIYASU (JP)
GOMI HIROKI (JP)
Application Number:
PCT/JP2015/073709
Publication Date:
March 03, 2016
Filing Date:
August 24, 2015
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F04C14/24
Foreign References:
| JP2009293416A | 2009-12-17 | |||
| JPH0988533A | 1997-03-31 | |||
| JP2014152721A | 2014-08-25 |
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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