{
  "$type": "site.standard.document",
  "description": "A vehicle air-conditioning device includes a control device that controls a refrigerant circuit, a heat medium circuit, and an air-conditioning unit. The refrigerant circuit has a hot gas bypass that decompresses at least part of refrigerant compressed by a compressor without the refrigerant…",
  "path": "/patents/1382460",
  "publishedAt": "2026-05-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/32011",
    "Sanden Corporation"
  ],
  "textContent": "A vehicle air-conditioning device includes a control device that controls a refrigerant circuit, a heat medium circuit, and an air-conditioning unit. The refrigerant circuit has a hot gas bypass that decompresses at least part of refrigerant compressed by a compressor without the refrigerant passing through an indoor heat exchange unit and an external heat exchange unit, and returns the decompressed refrigerant to the compressor. The control device is capable of executing a hot gas heating operation and a heat absorption heating operation, determines the necessity of refrigerant recovery from the external heat exchange unit, and performs, after execution of a previous air-conditioning operation or before execution of the hot gas heating operation, refrigerant recovery processing of recovering refrigerant from the external heat exchange unit when it is determined that the refrigerant recovery is necessary.",
  "title": "VEHICLE AIR CONDITIONING DEVICE"
}