Air conditioning circuit control using a thermostatic expansion valve and sequence valve
US7819333B2 · kind B2 · utility
1Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2008 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jun 30, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2505
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A valve assembly for an air conditioning system includes a liquid line port pressurized at a discharge pressure, an evaporator inlet port pressurized at a suction pressure, a sequence valve for controlling a first flow path between the liquid line port and an outlet in response to a differential between the discharge pressure and the suction pressure, and a thermostatic expansion valve that includes an actuator and an expansion valve member for controlling a second flow path between the outlet and the evaporator inlet port in response to a pressure differential across the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.