{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 83923
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  "description": "A secondary four-way valve (30) is arranged between an outer and inner heat exchanger (16,20) and an expansion device (18). The secondary four-way valve delivers refrigerant from one of the inner and outer heat exchangers to the inlet port (32) of expansion device and receives refrigerant from the…",
  "path": "/patents/1082828",
  "publishedAt": "2004-10-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/00907",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "A secondary four-way valve (30) is arranged between an outer and inner heat exchanger (16,20) and an expansion device (18). The secondary four-way valve delivers refrigerant from one of the inner and outer heat exchangers to the inlet port (32) of expansion device and receives refrigerant from the outlet port (34) of expansion device to the other one of outer and inner heat exchangers.",
  "title": "Reversible heat pump system"
}