{
  "$type": "site.standard.document",
  "description": "The present invention relates to a dry-sump, four-stroke engine (10) having a lubrication device, the engine comprising a crankcase (11) having a crank chamber (16) and a separate adjoining chamber (20) separated by a divider wall (64), wherein a through hole (67a,67b,67c) is formed in the divider…",
  "path": "/patents/1080636",
  "publishedAt": "2005-01-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01M1/12",
    "YAMAHA MOTOR CO LTD [JP]"
  ],
  "textContent": "The present invention relates to a dry-sump, four-stroke engine (10) having a lubrication device, the engine comprising a crankcase (11) having a crank chamber (16) and a separate adjoining chamber (20) separated by a divider wall (64), wherein a through hole (67a,67b,67c) is formed in the divider wall (64) connecting the crank chamber (16) with the separate chamber (20). It has the objective of providing a dry-sump, four-cycle engine having a lubrication device capable of reliably returning the lubricant oil to the crank chamber (16) with a simple structure. Therefore, the invention proposes that said through hole (67a,67b,67c) is openable and closable by a crank web (24a) of a crankshaft (22) housed in the crank chamber (16).",
  "title": "Dry-sump, four-stroke engine"
}