Title:
VANE PUMP
Document Type and Number:
Japanese Patent JP2004204794
Kind Code:
A
Abstract:
To provide a vane pump that can reduce pressure pulsation wave when discharging pressurized fluid with a simple configuration.
There is provided a pulsation section 70 on both sides of an opening groove 41 on the pump discharge side that opens along an inner-pump passage 20 for pulsating and changing the cross-section area of the passage 20. By pulsating and changing the cross-section area of the inner-pump passage 20 by the pulsation section 70, hydraulic oil pulsates and changes the flow rate in the circulation course that the oil reaches first and second discharge ports 52 and 53 to interfere hydraulic oil with each other in the vicinity and then to smooth the differences in the pressure distribution.
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| JPH0736142 | [Name of device] Vane pump |
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Inventors:
INOUE IKURO
NAKADA HIROYUKI
AKIYAMA SATORU
ADACHI SHINJI
KAKINUMA AKIO
NAKADA HIROYUKI
AKIYAMA SATORU
ADACHI SHINJI
KAKINUMA AKIO
Application Number:
JP2002376460A
Publication Date:
July 22, 2004
Filing Date:
December 26, 2002
Export Citation:
Assignee:
FUJI HEAVY IND LTD
International Classes:
B62D5/07; F01C21/08; F04C2/344; F04C14/00; F04C14/22; F04C15/00; F04C15/06; (IPC1-7): F04C2/344; B62D5/07; F04C15/00; F04C15/04
Attorney, Agent or Firm:
Susumu Ito
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