Title:
油圧機械及び再生可能エネルギー発電装置
Document Type and Number:
Japanese Patent JP6440578
Kind Code:
B2
Abstract:
A hydraulic machine includes a rotation shaft, a cam which rotates with the rotation shaft, a cylinder disposed radially inside or outside the rotation shaft; a piston configured to be reciprocable in the cylinder in conjunction with rotational motion of the cam; a connecting rod including a first end portion connected swingably to the piston and a second end portion disposed opposite to the first end portion; a hydrostatic pad disposed on the second end of the connecting rod and including a sliding surface facing an outer surface of the cam; and a lubricant-fluid supply channel disposed on the hydrostatic pad. A pressure in a working chamber formed by the piston and the cylinder changes cyclically and alternately P 1 and P 2 (where P 1 < P 2 ) in accordance with reciprocating motion of the piston. The hydrostatic pad is configured to retain a liquid film of the lubricant fluid having a thickness of d or more between the sliding surface and the outer surface of the cam at least when the pressure in the working chamber is P 2 , where d is an amount of deformation of the hydrostatic pad at when the pressure in the working chamber is P 2 .
Inventors:
Mitsuya Uchida
Haruki Hitomi
Hiroyasu Ochiai
Hideo Nishida
Atsushi Yushita
Haruki Hitomi
Hiroyasu Ochiai
Hideo Nishida
Atsushi Yushita
Application Number:
JP2015118535A
Publication Date:
December 19, 2018
Filing Date:
June 11, 2015
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F04B1/04; F03C1/053; F03D9/20; F03D9/28
Domestic Patent References:
| JP2015505936A | ||||
| JP53022305U | ||||
| JP2015504124A | ||||
| JP2014208982A | ||||
| JP53161302U | ||||
| JP2014051957A |
Foreign References:
| US3168006 |
Attorney, Agent or Firm:
Seishin ip patent business corporation