Title:
VARIABLE CAPACITY PUMP AND CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/198451
Kind Code:
A1
Abstract:
This variable capacity pump is provided with the following: an intake passage (12) that takes in a fluid; an intake opening (13) that is located downstream of the intake passage; a pump chamber (PC) that pumps the fluid guided into the intake opening by taking in, pressurizing, and discharging the fluid; a discharge opening (14) that is located downstream of the pump chamber; a communication path (32, 22, 16) that has an opening (31) formed in the pump chamber, in a region away from the intake opening and discharge opening in order to connect the pump chamber and the intake passage; and a flow rate control valve (70) that controls the flow rate of the fluid in the communication paths. Due to this configuration, by appropriately controlling the flow rate control valve between being completely closed and completely open, it is possible to discharge the fluid at the necessary discharge rate and prevent excessive discharge of fluid, thereby correspondingly suppressing loss of drive power, while achieving a simplified structure, miniaturization, lower cost, and the like.
Inventors:
TAKEHANA NORIO (JP)
Application Number:
PCT/JP2018/002133
Publication Date:
November 01, 2018
Filing Date:
January 24, 2018
Export Citation:
Assignee:
MIKUNI KOGYO KK (JP)
International Classes:
F04C2/10; F04C14/24; F04C15/06
Foreign References:
| JPH08114186A | 1996-05-07 | |||
| JPS6123483U | 1986-02-12 |
Attorney, Agent or Firm:
YAMAMOTO Takatoshi (JP)
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