Air conditioner system charge/relief valve
US5582202A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Dec 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7777
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A combined charge/relief valve for an air conditioner system includes an outer housing that defines a first passageway and an inner housing that defines a second passageway. The inner housing includes an O-ring seal and is biased by an outer spring to a sealed position to seal the first passageway. The inner housing can be moved to a charging position by the direct application of mechanical force in order to facilitate high rate charging of the air conditioner system. The inner housing includes a valve member movable between an opened and a closed position to seal the inner passageway. The valve member is biased to the closed position by a precision relief spring. Excessive refrigerant pressure in the air conditioner system moves the valve member from the closed to the open position in order to vent refrigerant to the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.