{
  "$type": "site.standard.document",
  "description": "A pump module disclosed herein is mounted in an evaporated fuel processing device configured to perform a purge process in which evaporated fuel in a fuel tank is supplied to an intake passage of an engine through a purge passage. The pump module may include: a pump configured to pump the…",
  "path": "/patents/1247986",
  "publishedAt": "2019-11-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/004",
    "AISAN KOGYO KABUSHIKI KAISHA"
  ],
  "textContent": "A pump module disclosed herein is mounted in an evaporated fuel processing device configured to perform a purge process in which evaporated fuel in a fuel tank is supplied to an intake passage of an engine through a purge passage. The pump module may include: a pump configured to pump the evaporated fuel in the purge passage to the intake passage; and a pump controller configured to control drive of the pump. The pump controller may be configured to: during the purge process, drive the pump at a rotational speed equal to or lower than a rotational speed threshold until when a predetermined period has elapsed from a start of the purge process; and after the predetermined period has elapsed, drive the pump at a rotational speed equal to or higher than the rotational speed threshold.",
  "title": "PUMP MODULE AND EVAPORATED FUEL TREATMENT DEVICE"
}