{
  "$type": "site.standard.document",
  "description": "Flow amount calculation controller controls a certain subject based on a flow amount of fluid, passing through a variable throttle portion (23) provided in an air passage (20), calculated from an upstream pressure Pu, an upstream density Áu, a downstream pressure Pd, an opening area Ad and a…",
  "path": "/patents/1104832",
  "publishedAt": "2002-05-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D11/10",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "Flow amount calculation controller controls a certain subject based on a flow amount of fluid, passing through a variable throttle portion (23) provided in an air passage (20), calculated from an upstream pressure Pu, an upstream density Áu, a downstream pressure Pd, an opening area Ad and a specific heat ratio k by the following formula.",
  "title": "Flow amount calculation controller and flow amount calculation control method"
}