{
  "$type": "site.standard.document",
  "description": "Method for controlling the head pressure in a transcritical refrigeration system (10) comprising a compressor (12), a first heat exchanger (14), an expansion device (16) and a second heat exchanger (18) connected in series in a refrigerant flow circuit, wherein the expansion device (16) controls…",
  "path": "/patents/1084367",
  "publishedAt": "2004-09-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/3225",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "Method for controlling the head pressure in a transcritical refrigeration system (10) comprising a compressor (12), a first heat exchanger (14), an expansion device (16) and a second heat exchanger (18) connected in series in a refrigerant flow circuit, wherein the expansion device (16) controls the head pressure. According to the invention, the method comprises the steps of: detecting the opening state of the expansion device (16) for determining if the expansion device (16) is substantially fully open; detecting the head pressure of the refrigerant between the compressor (12) and the expansion device (16); and reducing the stroke of the compressor (12) if the expansion device (16) is substantially fully open and the head pressure has reached a predetermined level.",
  "title": "Method for controlling the head pressure in a transcritical refrigeration system"
}