{
  "$type": "site.standard.document",
  "description": "A nozzle body with fuel injection holes, a valve guide, a valve body, a movable element and a stopper are provided by low-temperature nitriding treatment at a temperature of 350 through 480°C. A guide sleeve for guiding the movement of a movable element is press-fitted on the inner periphery of the…",
  "path": "/patents/1084485",
  "publishedAt": "2004-09-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M21/0254",
    "HITACHI LTD [JP]"
  ],
  "textContent": "A nozzle body with fuel injection holes, a valve guide, a valve body, a movable element and a stopper are provided by low-temperature nitriding treatment at a temperature of 350 through 480°C. A guide sleeve for guiding the movement of a movable element is press-fitted on the inner periphery of the tip of the stationary core, and the guide sleeve is made of a nonmagnetic member of high hardness and provided with a hard coating. A annular-chip valve guide and guide holder are arranged one on top of the other in the nozzle body. This guide holder is composed of a metallic material not provided with nitriding treatment. This guide holder is subjected to plastic deformation in the nozzle body by the pressure from above, whereby the guide holder is pressure-bonded on the inner periphery of the nozzle body, and the valve guide is secured by the guide holder.",
  "title": "FUEL INJECTION VALVE"
}