{
  "$type": "site.standard.document",
  "description": "Provided is an engine combustion chamber structure wherein the thermal efficiency of an engine and fuel consumption are improved. Also provided is an inner wall structure for a through channel, through which exhaust gas or intake gas of the engine passes. An engine combustion engine structure is…",
  "path": "/patents/969125",
  "publishedAt": "2014-10-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C23C28/00",
    "NGK INSULATORS LTD [JP]"
  ],
  "textContent": "Provided is an engine combustion chamber structure wherein the thermal efficiency of an engine and fuel consumption are improved. Also provided is an inner wall structure for a through channel, through which exhaust gas or intake gas of the engine passes. An engine combustion engine structure is provided with a heat-insulating member (1) on the inner wall of an engine constituent member (21) which constitutes an engine combustion chamber, the heat-insulating member (1) containing a heat-insulating porous layer (3) formed from ceramics, and a surface dense layer (2) formed on the surface of the heat-insulating porous layer (3) and formed from ceramics. The surface dense layer (2) of the heat-insulating member (1) has an open porosity of 5% or less, and preferably the heat-insulating porous layer (3) has a larger open porosity than the open porosity of the surface dense layer (2).",
  "title": "ENGINE COMBUSTION CHAMBER STRUCTURE, AND INNER WALL STRUCTURE OF THROUGH CHANNEL"
}