Title:
ELECTROMAGNETIC PUMP
Document Type and Number:
WIPO Patent Application WO/2012/132668
Kind Code:
A1
Abstract:
An electromagnetic pump (20) in which a pump part (40) is inserted into a valve body (80) while a solenoid part (30) is exposed and in which the valve body (80) is secured by inserting a pin (84) into a pin hole (82) formed on the valve body (80) and by engaging the pin (84) with a pin groove (44) at the interior of the valve body (80), wherein the pin groove (44) is formed on a position that is farther from the solenoid part (30) than the position on which a discharge port (43) is formed. As a consequence, it is possible to prevent actuation oil from reaching the solenoid part (30) and to prevent a fall in hydraulic pressure even when actuation oil leaks from the discharge port (43) into a gap formed between a cylinder (42) and the valve body (80).
Inventors:
NAKAI MASAYA (JP)
FUJII NORIOMI (JP)
KATO KAZUHIKO (JP)
FUJII NORIOMI (JP)
KATO KAZUHIKO (JP)
Application Number:
PCT/JP2012/054387
Publication Date:
October 04, 2012
Filing Date:
February 23, 2012
Export Citation:
Assignee:
AISIN AW CO (JP)
NAKAI MASAYA (JP)
FUJII NORIOMI (JP)
KATO KAZUHIKO (JP)
NAKAI MASAYA (JP)
FUJII NORIOMI (JP)
KATO KAZUHIKO (JP)
International Classes:
F04B17/04; F04B53/16
Domestic Patent References:
WO2009145176A1 | 2009-12-03 |
Foreign References:
JP2003227462A | 2003-08-15 | |||
JP2007051567A | 2007-03-01 | |||
US2832291A | 1958-04-29 |
Attorney, Agent or Firm:
ITEC INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Itec international patent firm (JP)
Patent business corporation Itec international patent firm (JP)
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