Title:
VARIABLE CAPACITY TYPE VANE PUMP
Document Type and Number:
Japanese Patent JP2018044536
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To stabilize an actuation of a vane of a variable capacity type vane pump.SOLUTION: A vane pump 100 comprises: a second pump body 20 housing a cam ring 4; a spring 27 energizing the cam ring 4 in a direction for increasing an eccentric amount to the rotor 2; a first pump body 10 and a pump cover 15 provided to sandwich the second pump body 20; and a housing chamber 29 for housing the spring 27. Support parts 31, 41 for supporting an end 27a of the spring 27 seated on a seating face 20a of the second pump body 20, and relief parts 32, 42 extending in an energization direction of the spring 27 from the support parts 31, 41 and formed farther from the spring 27 than the support parts 31, 41 are provided on a first inner face 30 and a second inner face 40 surrounding the spring 27 in the housing room 29, respectively.SELECTED DRAWING: Figure 3
Inventors:
AKATSUKA KOICHIRO
GOMI HIROKI
SOBUE FUMIHIKO
GOMI HIROKI
SOBUE FUMIHIKO
Application Number:
JP2016182113A
Publication Date:
March 22, 2018
Filing Date:
September 16, 2016
Export Citation:
Assignee:
KYB CORP
International Classes:
F04C14/22; F04C2/344; F04C15/00
Attorney, Agent or Firm:
Goto Patent Office
Masaki Goto
Masaaki Iida
Atsushi Sudo
Akioka Norihiro
Masaki Goto
Masaaki Iida
Atsushi Sudo
Akioka Norihiro