Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RADIAL CYLINDER PUMP
Document Type and Number:
Japanese Patent JP3273929
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To restrain a plurality of pistons at a stroke by mounting a ring- shaped support member along the inner periphery of a tubular torque ring in a radial cylinder pump advancing and retreating the piston in the radial direction relative to a rotating shaft, and engaging the respective pistons with the supporting member.
SOLUTION: A rotating hydraulic transmission 0 is provided with a volume increasing and decreasing mechanisms Y1, Y2 sharing at least a torque ring 1 and a cylinder block 3 eccentially movable to the torque ring 1, and one of the volume increasing and decreasing mechanisms Y1, Y2 performs an motor action, and the other performs a pump action. Pistons 51, 52 are engaged with a supporting member 10 disposed along the inner periphery 11 of the torque ring 1, and the front ends of the pistons 51, 52 are brough into contact with or brought near the inner periphery 11 of the torque ring 1. The support member 10 is formed so as to be elastically deformed, and its elastic return force presses an outer surface 10a against the inner surfaces 51c, 52c of jaws 51b, 52b of the respective pistons 51, 52.


Inventors:
Yasuo Kita
Takashi Asami
Application Number:
JP21813199A
Publication Date:
April 15, 2002
Filing Date:
July 30, 1999
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Hirose Valve Industry Co., Ltd.
International Classes:
F04B1/04; F03C1/247; F04B1/047; F04B1/053; F04B53/00; F04B53/12; (IPC1-7): F04B1/04; F04B1/047; F04B1/053; F04B53/00; F04B53/12
Domestic Patent References:
JP8135562A
JP61205379A
JP63138172A
JP649776U
Attorney, Agent or Firm:
Kazuhiro Akazawa (2 outside)