Refrigerant cycle system and valve device for the same
US6574976B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Jan 23, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B41/24
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a refrigerant cycle system having a hot gas heater function, a valve device includes a solenoid valve for opening and closing a communication between a compressor and a condenser, a differential pressure valve opened by a pressure difference between a discharge side of the compressor and an inlet side of the condenser when the solenoid valve is closed for directly introducing gas refrigerant from the discharge side of the compressor into an evaporator, and a check valve for preventing refrigerant discharged from the compressor from flowing into the condenser when the solenoid valve is opened. In the valve device, at least the three valves are integrated by a housing member to construct an integrated member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.