{
  "$type": "site.standard.document",
  "description": "A compression ignition internal combustion engine includes: a cylinder block and a cylinder head; a piston including a cavity that defines a combustion chamber in cooperation with the cylinder block and the cylinder head; and a nozzle for injecting fuel into the combustion chamber, wherein the…",
  "path": "/patents/944075",
  "publishedAt": "2016-04-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B23/0645",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "A compression ignition internal combustion engine includes: a cylinder block and a cylinder head; a piston including a cavity that defines a combustion chamber in cooperation with the cylinder block and the cylinder head; and a nozzle for injecting fuel into the combustion chamber, wherein the cavity includes: a raised portion raised toward the nozzle; a bottom surface formed around the raised portion; and an open surface and a reentrant surface that are continuous to the bottom surface, a depth of the open surface becomes shallower toward a radially outer side of the piston, a distance from the nozzle to the open surface is greater than a distance from the nozzle to the reentrant surface, a height position, in a central axis direction of the piston, of a ridgeline between the bottom surface and the open surface is lower than a height position, in the central axis direction of the piston, of a ridgeline between the bottom surface and the reentrant surface, and the nozzle injects first and second fuel sprays toward the open surface and the reentrant surface, respectively.",
  "title": "COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE"
}