Heat pump system for vehicle
US12370866B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 11, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Feb 23, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/00307
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An embodiment heat pump system for a vehicle includes an air conditioner unit and a chiller. The air conditioner unit includes a compressor, first through third heat-exchangers, a first expansion valve, and an evaporator interconnected by a refrigerant line for circulating a refrigerant through the refrigerant line, and the chiller is connected to the refrigerant line through a first connection line for adjusting a temperature of a coolant by heat-exchanging the refrigerant with the coolant. The air conditioner unit further includes a second expansion valve on the first connection line upstream of the chiller, a first valve on the refrigerant line between the first and second heat-exchangers, a third expansion valve on the refrigerant line between the first valve and the second heat-exchanger, a second valve on the refrigerant line between the evaporator and the compressor, and a fourth expansion valve on a second connection line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.