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Patent Searching and Data


Title:
VANE PUMP
Document Type and Number:
WIPO Patent Application WO/2017/217223
Kind Code:
A1
Abstract:
Provided is a vane pump (100) wherein a suction path (30) has: an outer peripheral path (31) formed along the outer periphery of a cam ring (4); and two suction ports (33a, 33b) open to a pump chamber (6) and conducting to the pump chamber (6) hydraulic oil flowing through the outer peripheral path (31). A return path (35) is formed extending vertically upward from a return port (35a) open to the outer peripheral path (31), and the return port (35a) is connected to the outer peripheral path (31) at a position between a vertically extending tangent line (L1) at the outer peripheral surface (4d) of a cam ring (4) and a vertical line (L2) extending from the end of the suction port (33b), which is located on the side opposite the direction of rotation, the suction port (33b) being located on the vertically upper side.

Inventors:
SUGIHARA MASAMICHI (JP)
NAKAGAWA TOMOYUKI (JP)
KONDOU HIROTOSHI (JP)
Application Number:
PCT/JP2017/019939
Publication Date:
December 21, 2017
Filing Date:
May 29, 2017
Export Citation:
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Assignee:
KYB CORP (JP)
International Classes:
F04C2/344; F04C14/26; F04C15/06
Domestic Patent References:
WO2013150808A12013-10-10
Foreign References:
JPS6380360U1988-05-27
JPH11257250A1999-09-21
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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