{
  "$type": "site.standard.document",
  "description": "A process of molding a cylinder block of a multi-cylinder engine comprises making a jacket core (30) so as to form cylinder jackets (8) of the multi-cylinder engine (E), attaching the jacket core (30) to a cylinder block forming mold (28), and pouring molten metal into the cylinder block forming…",
  "path": "/patents/1102265",
  "publishedAt": "2002-08-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B22C9/103",
    "KUBOTA KK [JP]"
  ],
  "textContent": "A process of molding a cylinder block of a multi-cylinder engine comprises making a jacket core (30) so as to form cylinder jackets (8) of the multi-cylinder engine (E), attaching the jacket core (30) to a cylinder block forming mold (28), and pouring molten metal into the cylinder block forming mold (28). The process makes a water passage forming core (31) of sphered particle sand having a lower expansion coefficient than the common silica sand. The core (31) is intended for forming at a head side portion of an inter-bore wall (4) of the multi-cylinder engine (E), a cooling water passage (10) which communicates the cylinder jackets (8) with a head jacket (22). And prior to pouring the molten metal, the process fixedly attaches the water passage forming core (31) to a position corresponding to the inter-bore wall (4) of the jacket core (30).",
  "title": "Cylinder block of multi-cylinder engine and process of molding same"
}