Valve apparatus of hermetic type compressor
US5909749A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | Jun 8, 1999 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7892
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve apparatus of a hermetic type compressor enables an easy mounting of an exhaust valve and a valve spring to an accurate position within a reentrant groove formed in a cylinder head, decreases the number of elements of the valve apparatus to facilitate the assembly and reduces a dead volume to enhance efficiency of the compressor. The valve apparatus includes a cylinder head having a reentrant groove with an exhaust hole, the exhaust valve installed to be opened/closed on the upper surface of the exhaust hole, the valve spring in contact with an upper surface of the exhaust valve, a head cover and a packing interposing between the cylinder head and head cover for preventing a leakage of the refrigerant gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.