{
  "$type": "site.standard.document",
  "description": "In a plughole waterproofing device for an engine, a coil case (10) for covering an ignition coil (7) is fitted onto the ignition coil (7) that is accommodated, together with an ignition plug (8), in a plughole (12) opened to an upper surface of an engine, and a longitudinal air path (21) extending…",
  "path": "/patents/1013843",
  "publishedAt": "2011-04-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02P13/00",
    "HONDA MOTOR CO LTD [JP]"
  ],
  "textContent": "In a plughole waterproofing device for an engine, a coil case (10) for covering an ignition coil (7) is fitted onto the ignition coil (7) that is accommodated, together with an ignition plug (8), in a plughole (12) opened to an upper surface of an engine, and a longitudinal air path (21) extending upward from a lower end portion of the case upper portion (10b) communicating with the plughole (12) and a vent hole (27) communicating with an upper end portion of the longitudinal air path (21) and being opened to ambient air are provided in a case upper portion (10b), protruding above the engine, of the coil case (10). The vent hole (27) is provided in an upper portion of the case upper portion (10b). A cover wall (22) hanging while surrounding the vent hole (27) is continuously provided on the case upper portion (10b), and an air chamber (20) is formed inside the cover wall (22), the vent hole (27) being opened in an upper portion of the air chamber (20), an opening face (20a) being formed at an entire bottom of the air chamber (20) in such a manner as to open toward the engine. Accordingly, it is possible to effectively prevent water intrusion into a vent hole and thus preventing a plughole from receiving water even when the engine receives water repeatedly.",
  "title": "Plughole waterproofing device for engine"
}