Title:
PUMP DEVICE
Document Type and Number:
Japanese Patent JP2016065485
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress vibration generated by a radial direction force of a vane pump.SOLUTION: A pump device 100 comprises two vane pumps 50A, 50B, and the two vane pumps 50A, 50B comprise pump chambers 18A, 18B which are partitioned by adjacent vanes 3A, 3B between rotors 2A, 2B and cam rings 4A, 4B, respectively. The cam rings 4A, 4B have suction zones for expanding capacities of the pump chambers 18A, 18B accompanied by the rotation of the rotors 2A, 2B, and discharge zones for contracting the capacities of the pump chambers 18A, 18B accompanied by the rotation of the rotors 2A, 2B, and in the two vane pumps 50A, 50B, drive shafts 1A, 1B are arranged in parallel with each other, and suction zones or the discharge zones are oppositely arranged with respect to each other.SELECTED DRAWING: Figure 3
Inventors:
NAKAMURA KAZUHISA
Application Number:
JP2014194378A
Publication Date:
April 28, 2016
Filing Date:
September 24, 2014
Export Citation:
Assignee:
KYB CORP
International Classes:
F04C11/00; F04C2/344; F04C14/22; F04C15/00
Attorney, Agent or Firm:
Masaki Goto
Masaaki Iida
Atsushi Sudo
Masaaki Iida
Atsushi Sudo
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