{
  "$type": "site.standard.document",
  "description": "A main bearing case(7) has a bearing holder(61) for holding a bearing(11a) so as to support a crankshaft(12), and a crankcase mounting section(62) at which it is joined to a crankcase(3). Rib walls(63) are provided so as to surround the bearing holder between the bearing holder and the crankcase…",
  "path": "/patents/1102327",
  "publishedAt": "2002-08-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B75/16",
    "FUJI HEAVY IND LTD [JP]"
  ],
  "textContent": "A main bearing case(7) has a bearing holder(61) for holding a bearing(11a) so as to support a crankshaft(12), and a crankcase mounting section(62) at which it is joined to a crankcase(3). Rib walls(63) are provided so as to surround the bearing holder between the bearing holder and the crankcase mounting section. The rib walls are formed in a side of the crankcase, and in a neighborhood of each inner side face of the bearing holder and the crankcase mounting section. These rib walls receive a force exerted in a radial direction from the crankshaft. Thereby, an improvement of rigidity of the main bearing case can be achieved, and also the lubrication to a valve-operating system(30) can be always ensured by preventing an oil surface from lowering even when an engine is located with inclination.",
  "title": "Bearing case for engine"
}