Heat control system
US7048044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2004 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Apr 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
There are provided a water-refrigerant heat exchanger 30 for exchanging heat between refrigerant discharged from a compressor 21 and engine-cooling water circulating an engine-cooling water circuit 10, prior to being fed into the radiator 22, and a bypass 25 for guiding the refrigerant prior to being fed into the evaporator 24 to the water-coolant heat exchanger 30 while bypassing the evaporator 24 and the compressor 21. When it is desired to accelerate the warming-up of the engine 11, the bypass 25 is closed to operate the compressor 21 to heat the engine-cooling water by high-pressure refrigerant, and when it is desired to complement the capacity of the radiator 12, the bypass 25 is open to guide the liquid-phase refrigerant to the water-refrigerant heat exchanger 30 to effectively cool the refrigerant by using the phase change of the refrigerant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.