{
  "$type": "site.standard.document",
  "description": "The invention relates to a turbocharger for an internal combustion engine, in which a bearing having excellent abrasion resistance without generating a black corrosion product in a high-temperature oil environment is provided. As bearing materials of a turbocharger, a copper alloy material…",
  "path": "/patents/1098553",
  "publishedAt": "2003-02-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D25/166",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The invention relates to a turbocharger for an internal combustion engine, in which a bearing having excellent abrasion resistance without generating a black corrosion product in a high-temperature oil environment is provided. As bearing materials of a turbocharger, a copper alloy material containing, as main components, Cu, Zn, Al, Mn, and Si is employed. The elongating direction of an Mn-Si compound crystallized in the alloy material is set to the axial direction of a rotary shaft with respect to a radial bearing (10) and is set to the direction perpendicular to the rotary shaft (3) with respect to a thrust bearing (11).",
  "title": "Turbo charger bearing"
}