Title:
HYDRAULIC MACHINE AND WIND POWER GENERATOR
Document Type and Number:
Japanese Patent JP2017150442
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic machine and a wind power generator that can reduce a side force in a simplified configuration.SOLUTION: A hydraulic machine comprises: a cylinder provided in a radial direction; a piston that is configured so as to reciprocate in the cylinder and that includes a piston head having a curved outer peripheral surface in a cross section in an axial direction toward the cylinder; a cam that is engaged with the base end part of the piston and that is configured so as to rotate in response to the reciprocating motion of the piston; and a piston ring provided on the outer peripheral surface of the piston head so as to slidingly contact to the inner peripheral surface of the cylinder. The piston ring is formed so that an angle formed by a seal line between the piston head and the cylinder by the piston ring with respect to a plane orthogonal to the axial direction of the cylinder varies according to tilting of the piston.SELECTED DRAWING: Figure 3B
Inventors:
OCHIAI HIROYASU
Application Number:
JP2016035550A
Publication Date:
August 31, 2017
Filing Date:
February 26, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F04B1/053; F03C1/053; F03D9/28
Domestic Patent References:
| JPH03115782A | 1991-05-16 | |||
| JP2521481B2 | 1996-08-07 | |||
| JP2012154260A | 2012-08-16 | |||
| JPH09159026A | 1997-06-17 | |||
| JP2014141957A | 2014-08-07 |
Foreign References:
| DE102009011224A1 | 2010-10-07 |
Attorney, Agent or Firm:
Seishin ip patent business corporation