{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "An engine exhaust structure has first and second purifying devices simply and stably supported in an exhaust passage, and a plurality of independent passages. The purifying devices are disposed on an engine body exhaust side and arranged in a flow direction of exhaust gas at a height lower than…",
  "path": "/patents/1385494",
  "publishedAt": "2026-06-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M26/15",
    "MAZDA MOTOR CORPORATION"
  ],
  "textContent": "An engine exhaust structure has first and second purifying devices simply and stably supported in an exhaust passage, and a plurality of independent passages. The purifying devices are disposed on an engine body exhaust side and arranged in a flow direction of exhaust gas at a height lower than exhaust port opening ends. The independent passages are fixed to an engine exhaust-side surface in communication with respective exhaust port opening ends. A first connecting passage connects the respective exhaust port opening ends to an upstream end of the first purifying device, and a second connecting passage connects a downstream end of the first purifying device to an upstream end of the second purifying device. An EGR pipe at an EGR passage connects a portion of the engine exhaust-side surface to the second connecting passage, the portion being located at a position higher than a catalyst device.",
  "title": "EXHAUST STRUCTURE OF ENGINE"
}