Title:
SWASH PLATE TYPE HYDRAULIC MOTOR AND SWASH PLATE TYPE HYDRAULIC PUMP
Document Type and Number:
WIPO Patent Application WO/2013/005703
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a swash plate type hydraulic motor and a swash plate type hydraulic pump having a construction with which abrasion/cracking of the swash plate can be prevented, without applying a hardening process such as thermal processing to the swash plate.
One embodiment of the present invention is a swash plate type hydraulic motor (1). A spherical surface part (8b) is formed integrally on the swash-plate-side end face of a tilting piston (8). A plate member (10), which has a concave part (10a) on the tilting-piston side having the same shape as the spherical surface part (8b) and into which the spherical surface part (8b) fits in a slidable manner, and a sliding surface (10b) on the swash-plate side that slides on a second support surface (7b2), is arranged between the swash plate (7) and the tilting piston (8).
Inventors:
SATAKE TERUHIKO (JP)
Application Number:
PCT/JP2012/066841
Publication Date:
January 10, 2013
Filing Date:
July 02, 2012
Export Citation:
Assignee:
NABTESCO CORP (JP)
SATAKE TERUHIKO (JP)
SATAKE TERUHIKO (JP)
International Classes:
F04B1/22; F03C1/253
Foreign References:
| JPH0573270U | 1993-10-08 | |||
| JPH0512667U | 1993-02-19 | |||
| JP2005105899A | 2005-04-21 | |||
| JPH0754758A | 1995-02-28 |
Attorney, Agent or Firm:
KAJI, Yoshiyuki et al. (JP)
梶 Yoshiyuki (JP)
梶 Yoshiyuki (JP)
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Claims: