Title:
PISTON FOR HYDRAULIC EQUIPMENT AND HYDRAULIC EQUIPMENT
Document Type and Number:
Japanese Patent JP2017166454
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To resolve some problems found at hydraulic equipment that a clearance between a piston shoe and a swash plate of the hydraulic equipment and an amount of leakage cannot be appropriately set and a sufficient orifice effect for controlling a pressure at sliding surfaces between the swash plate and the shoe cannot be attained.SOLUTION: This invention relates to hydraulic equipment in which several pistons 111 for hydraulic equipment are reciprocated in respect to a swash plate 103, the pistons 111 for hydraulic equipment are provided with, at their extremity ends, a swash plate 103 and a sliding shoe 113. A light weight member 117 formed with an oil guide groove 118 at its outer periphery is fixed to a cavity part 116 formed at a shaft part and then lubricant oil is supplied between a sliding surface 115 at the extremity end of the shoe 113 and the swash plate 103 through an oil guide hole 125 formed between the oil guide groove 118 and the inner peripheral surface of the cavity part 116.SELECTED DRAWING: Figure 1
More Like This:
| JP2557630 | [Name of invention] Preload structure of swash plate type piston pump / motor |
| WO/1999/037917 | AXIAL PISTON PUMP |
| WO/2012/023155 | INTEGRATED ELECTRO-HYDRAULIC DEVICE |
Inventors:
KOSOTO HIROSHI
AKE JITSUAKI
AKE JITSUAKI
Application Number:
JP2016054814A
Publication Date:
September 21, 2017
Filing Date:
March 18, 2016
Export Citation:
Assignee:
KOSOTO HIROSHI
AKE JITSUAKI
AKE JITSUAKI
International Classes:
F04B1/22; F03C1/253; F04B53/00
Domestic Patent References:
| JP2014152690A | 2014-08-25 | |||
| JPH1182289A | 1999-03-26 | |||
| JP2003343423A | 2003-12-03 | |||
| JP2014152690A | 2014-08-25 | |||
| JPH1182289A | 1999-03-26 | |||
| JP2003343423A | 2003-12-03 | |||
| JP2003343424A | 2003-12-03 | |||
| JP2003343424A | 2003-12-03 |
Attorney, Agent or Firm:
Masatoshi Nishikawa