{
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  "description": "There is provided a loop-scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unbumt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc., as well…",
  "path": "/patents/1016139",
  "publishedAt": "2011-01-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B25/14",
    "YAMABIKO CORP [JP]"
  ],
  "textContent": "There is provided a loop-scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unbumt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc., as well as of improving the durability and output stability of a cylinder and a piston. One pair or a plurality of pairs of scavenging passages (31, 31 and 32, 32) that adopt a reverse scavenging sestem are so provided as to communicate a combustion actuating chamber (15) formed above a piston (20) with a crankchamber (18). At least one pair of the scavenging passages (32, 32) comprises, in large part, passage portions with partitions (32k, 32k). A cutout opening or through-hole that serves as a scavenging inlet (32a, 32a), the upper portion or whole of which is of a substantially triangular shape that is narrower towards its upper side, is formed in a lower end portion of at least one of the partitions (32k, 32k).",
  "title": "Two-stroke internal combustion engine"
}