{
  "$type": "site.standard.document",
  "description": "The present disclosure relates to the technical field of engines. An engine includes a cylinder block (10), a cylinder head (20) and a piston (30). The cylinder head (20) is fixedly connected to the cylinder block (10). The piston (30) is movably connected to the cylinder block (10). The cylinder…",
  "path": "/patents/1396546",
  "publishedAt": "2025-12-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B23/08",
    "BYD CO LTD [CN]"
  ],
  "textContent": "The present disclosure relates to the technical field of engines. An engine includes a cylinder block (10), a cylinder head (20) and a piston (30). The cylinder head (20) is fixedly connected to the cylinder block (10). The piston (30) is movably connected to the cylinder block (10). The cylinder block (10), the cylinder head (20) and the piston (30) form a combustion chamber (101). An intake valve hole (201) and an exhaust valve hole (202) are defined on the cylinder head (20). An intake valve (41) is provided at the intake valve hole (201) and an exhaust valve (42) is provided at the exhaust valve hole (202). A protrusion barrier protrusion (21) is provided at the edge of the intake valve hole (201) away from the exhaust valve hole (202). The included angle between connecting lines that are formed with both ends of the barrier protrusion (21) and the center of the intake valve hole (201) is greater than 120 degrees and less than or equal to 180 degrees. With the barrier protrusion, the tumble effect in the cylinder is improved and the thermal efficiency of the engine is improved in actual applications.",
  "title": "ENGINE AND VEHICLE WITH ENGINE"
}