Discharge valve apparatus for compressor
US5379799A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1993 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Oct 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7892
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A discharge valve apparatus for a compressor includes a valve plate with a port opened, a lead valve fixed on the valve plate, adapted for swingably opening and closing the port elastically, and including a substantially disk-shaped head portion and a neck portion constricted continuously from the head portion, and a retainer fixed on the valve plate, and including an inclining surface adapted for regulating the opening degree of the lead valve, the inclining surface having an inclination varying around an area where the retainer is brought into contact with the head portion of the lead valve when the lead valve fully opens the port. With the discharge valve apparatus, the lead valve can be inhibited from adhering on the retainer through the lubricant contained in the refrigerant, and accordingly the volumetric efficiency deterioration, resulting from the retardation of the lead valve in the returning, can be inhibited. In addition, instead of the inclining surface of the retainer, the discharge valve apparatus may include a contact projection disposed either on a surface of the retainer facing the lead valve or on a surface of the lead valve facing the retainer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.