HEATING AND COOLING SYSTEM FOR A VEHICLE

    公开(公告)号:US20220134840A1

    公开(公告)日:2022-05-05

    申请号:US17085602

    申请日:2020-10-30

    Abstract: A vehicle having a heating and cooling system includes a refrigerant loop for conveying refrigerant, a coolant loop for conveying coolant, a chiller configured to convey the refrigerant and the coolant, and a vessel coupled to the chiller and having a phase change material disposed therein. The phase change material is configured to freeze via heat transfer from the phase change material to the refrigerant and melt via heat transfer from the coolant to the phase change material.

    Vapor injection heat pump system and controls

    公开(公告)号:US11267318B2

    公开(公告)日:2022-03-08

    申请号:US16695427

    申请日:2019-11-26

    Abstract: A vehicle HVAC system includes a compressor, a first heat exchanger for exchanging heat between the refrigerant outside air, a first check valve set, a first expansion device for decompressing a first portion of the refrigerant, a second heat exchanger for exchanging heat between the first portion of the refrigerant and a second portion of the refrigerant, a second expansion device for decompressing the second portion of the refrigerant, a second check valve set, a third heat exchanger for exchanging heat between the refrigerant and inside air, and a selector valve for switching between a heating mode and a cooling mode. The first check valve set and the second check valve set together maintain a constant flow direction through the first expansion device, the second heat exchanger, and the second expansion device in the heating mode and the cooling mode.

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