Method of making a swash plate type compressor piston whose head portion is formed by pore-free die-casting
US6438834B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 20, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Sep 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49261
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of producing a piston for a swash plate type compressor including a head portion which is slidably fitted in a cylinder bore of the compressor, and an engaging section which engages a swash plate of the compressor, wherein a blank including a hollow cylindrical head section corresponding to the head portion and an engaging section corresponding to the engaging portion is formed by a pore-free die-casting method, such that the head section and the engaging section are formed integrally with each other at the closed end by the head section, and wherein a closing member is fixed to the hollow cylindrical head section so as to close its open end, for thereby providing the head portion of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.