{
  "$type": "site.standard.document",
  "description": "In a self-igniting possible range, both intake and exhaust valves (6), (7) are placed in a closure condition for a period from the end of an exhaust stroke and the beginning of an intake stroke for establishing a negative overlap period in which a residual gas is pressurized to increase its…",
  "path": "/patents/1074865",
  "publishedAt": "2005-08-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B1/12",
    "FUJI HEAVY IND LTD [JP]"
  ],
  "textContent": "In a self-igniting possible range, both intake and exhaust valves (6), (7) are placed in a closure condition for a period from the end of an exhaust stroke and the beginning of an intake stroke for establishing a negative overlap period in which a residual gas is pressurized to increase its temperature, thus raising the air fuel mixture temperature in a combustion chamber (3) up to a compression ignition possible temperature. And, a fuel is for the first time injected from an in-cylinder injector (11) during an intake stroke in a high-load operating condition, and the fuel is for the second time injected in the second half of a compression stroke. Thus, the fuel is twice injected so that preignition may be prevented.",
  "title": "Internal combustion engine"
}