Heat pump system for vehicle
US9810465B2 · kind B2 · utility
9Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Oct 28, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2519
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pump system for a vehicle delays the change of the direction of a directional valve for a given period of time and then conducts the change of the direction of the directional valve, upon receiving the mode change signal between an air conditioner mode and a heat pump mode, thus preventing the generation of the noise and vibration caused by the differential pressure of a refrigerant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.