{
  "$type": "site.standard.document",
  "description": "The engine has a valve gear mechanism provided above a combustion chamber and a cooling air passage (32) extending in fore-and-aft direction between the chamber and a valve gear mechanism along an exhaust and an intake port. A laterally extending cooling air passage (35) is in communication with…",
  "path": "/patents/1088459",
  "publishedAt": "2004-03-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01P1/02",
    "HONDA MOTOR CO LTD [JP]"
  ],
  "textContent": "The engine has a valve gear mechanism provided above a combustion chamber and a cooling air passage (32) extending in fore-and-aft direction between the chamber and a valve gear mechanism along an exhaust and an intake port. A laterally extending cooling air passage (35) is in communication with the passage and includes an ignition plug (27). A cooling fin curved from the former passage extends towards the latter passage. The exhaust port is inclined with respect to the fore-and-aft direction to broaden a front opening of the former passage.",
  "title": "Air-cooled internal combustion engine"
}