{
  "$type": "site.standard.document",
  "description": "The invention relates to a fuel pump, of which sliding mechanism parts in its fuel chamber have good wear resistance under a severe environment, and to a direct fuel injection engine using the fuel pump. [0002] In a fuel pump for pressurizing and delivering fuel to a fuel injector of a vehicle…",
  "path": "/patents/1096003",
  "publishedAt": "2003-05-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C23C28/00",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The invention relates to a fuel pump, of which sliding mechanism parts in its fuel chamber have good wear resistance under a severe environment, and to a direct fuel injection engine using the fuel pump. [0002] In a fuel pump for pressurizing and delivering fuel to a fuel injector of a vehicle engine, at least one of sliding surfaces of a slant plate (9), a slipper (10) and a plunger (11) sliding in a lubricating oil and at least one of sliding surfaces of sliding members of a plunger (11) and a cylinder (13) contacting with and sliding on each other through the fuel are formed of a hardened layer composed of any one of a nitrided layer, a carburization-quenched layer and a carbonitrided layer, or coated with a high corrosion resistant and hard metal compound layer over the hardened layer.",
  "title": "Fuel pump and direct fuel injection engine"
}