Title:
VARIABLE-CAPACITY OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2023/149098
Kind Code:
A1
Abstract:
A variable-capacity oil pump according to the present invention has a swing center (Q) of a cam ring (4) set on an outer side relative to a cam ring body (40) in a radial direction. Therefore, it is possible to ensure a relatively large distance (Lx) between the swing center (Q) of the cam ring (4) and a coil spring (SP), and a bias force of the coil spring (SP) can be reduced by an amount corresponding to an increase in the distance (Lx).
Inventors:
YAMAMOTO REO (JP)
NAGANUMA ATSUSHI (JP)
SAGA KOJI (JP)
NAGANUMA ATSUSHI (JP)
SAGA KOJI (JP)
Application Number:
PCT/JP2022/046054
Publication Date:
August 10, 2023
Filing Date:
December 14, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F04C2/344; F04C14/22; F04C18/344
Foreign References:
| JPH0417792A | 1992-01-22 | |||
| US20080175724A1 | 2008-07-24 | |||
| JPH10205461A | 1998-08-04 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Download PDF:
Previous Patent: INFORMATION PROCESSING DEVICE, PROGRAM, AND DETECTION DEVICE
Next Patent: SCROLL COMPRESSOR
Next Patent: SCROLL COMPRESSOR