Sliding shoe for a rotatable swash-plate type refrigerant gas compressor
US4420986A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 4, 1981 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Feb 4, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12701
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a sliding shoe for a rotatable swash-plate type refrigerant gas compressor. This shoe is slidably connected between a rotatable swash-plate and a ball rotatably engaged with a piston. One of the major surfaces of the shoe slidably contacts a sliding surface of the swash-plate. A sliding surface of the shoe facing the swash-plate is formed with a flat plane at its center portion and chamfered surface at the remaining portion of the sliding surface. At least the sliding plane of the shoe is coated with a lead alloy. According to the present invention, even if the swash-plate type compressor has no lubrication, abrasion and seizing of the shoe can be reduced to a great extent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.