Vehicle air conditioner
US10052939B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 29, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jun 8, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/00961
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle air conditioner comprising a heat pump device including a compressor that compresses refrigerant, first and second heat exchangers disposed inside the vehicle cabin within an interior air-conditioning unit, and a pressure reducing valve. The vehicle air conditioner further comprises an air-conditioning controller which controls the heat pump device and interior air-conditioning unit, an exterior heat exchanger temperature sensor and a degree-of-heating requested detecting section. If the quantity of heat absorbed by the exterior heat exchanger has decreased, the controller operates the heat pump device to operate in a mode in which a refrigerant discharged from the compressor flows through the first and second heat exchangers, bypasses the exterior heat exchanger, and then is sucked into the compressor, and a second mode in which the refrigerant is flow throughs the first heat exchanger and is bypassed around the second and exterior heat exchanger after pressure has been reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.