Automatic expansion valve for refrigerant
US3952535A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Oct 3, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B41/335
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An automatic expansion valve for controlling refrigerant flow from a condenser to an evaporator in which the valve includes a deflectable member which defines a refrigerant expansion orifice with other structure within the valve, and with the flow passage arrangement in the valve body being such as to subject at least part of the opposite faces of the deflectable member to the different pressures resulting from refrigerant flow through the expansion orifice so that changes in the deflection of the deflectable member are in accordance with differential pressure across the orifice and accordingly effects changes in the effective opening of the expansion orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.