Title:
ELECTRIC PUMP
Document Type and Number:
Japanese Patent JP2015081559
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an electric pump which has a relief valve and increases reliability (durability) by preventing the generation of abnormal noise (oscillation) etc.SOLUTION: An electric pump 100 includes a relief valve 101 provided in a relief passage 6b. A clearance w1 between a central portion of a spring 24 of the relief valve in a shaft center direction and a portion defining a relief passage is smaller than both of a clearance w2 between a spring holder 23 and the portion defining the relief passage and a clearance w3 between an end of the spring in the shaft center direction and the relief passage.
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Inventors:
NOSE SHINYA
SOGA HIDEHIRO
AOTA MASAYUKI
SOGA HIDEHIRO
AOTA MASAYUKI
Application Number:
JP2013219778A
Publication Date:
April 27, 2015
Filing Date:
October 23, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F04B53/10; F16K17/04; F16K47/02
Domestic Patent References:
| JP2007333207A | 2007-12-27 | |||
| JP2009293416A | 2009-12-17 | |||
| JPS5070923A | 1975-06-12 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshikazu Takei
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshikazu Takei
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