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Title:
HYDRAULIC PUMP
Document Type and Number:
WIPO Patent Application WO/2019/054511
Kind Code:
A1
Abstract:
A hydraulic pump (1) comprising an actuator (2) and a pump unit (3). The pump unit (3) comprises a cylinder (30) and a piston (40) that reciprocally moves along an axial direction (DL). The actuator (2) comprises a cylindrical coil body (10) and a movable body (20) capable of reciprocally moving in the axial direction (DL) relative to the cylindrical coil body (10). The movable body (20) is driven at least towards one side in the axial direction (DL) by magnetic flux generated from the cylindrical coil body (10). The hydraulic pump has provided therein: a first impelling member (71) for resonance that impels the piston (40) towards one side (DL1) in the axial direction (DL); and a second impelling member (72) for resonance that impels the piston (40) towards the other side (DL2) in the axial direction (DL).

Inventors:
FUJII Noriomi (10, Takane, Fujiicho, Anjo-sh, Aichi 92, 〒4441192, JP)
NISHITANI Takuya (10, Takane, Fujiicho, Anjo-sh, Aichi 92, 〒4441192, JP)
NAKAI Masaya (10, Takane, Fujiicho, Anjo-sh, Aichi 92, 〒4441192, JP)
Application Number:
JP2018/034306
Publication Date:
March 21, 2019
Filing Date:
September 14, 2018
Export Citation:
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Assignee:
AISIN AW CO., LTD. (10 Takane, Fujiicho Anjo-sh, Aichi 92, 〒4441192, JP)
International Classes:
F04B17/04; F04B35/04
Foreign References:
JP2014088856A2014-05-15
JP2004140902A2004-05-13
Attorney, Agent or Firm:
R&C IP LAW FIRM (3-3 Nakanoshima 3-chome, Kita-ku Osaka-sh, Osaka 05, 〒5300005, JP)
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