Evaporator pressure regulator control and diagnostics
US7669432B2 · kind B2 · utility
2Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2007 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Feb 25, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method includes cycling an electronic evaporator pressure regulator valve fluidly coupled to a refrigeration circuit to regulate flow through the electronic evaporator pressure regulator valve and sensing a current drawn by the electronic evaporator pressure regulator valve during cycling of the electronic evaporator pressure regulator valve. The method further includes determining a valve condition of the electronic evaporator pressure regulator valve based on the sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.