{
  "$type": "site.standard.document",
  "description": "A two-stroke engine is provided with a piston (32), a cylinder (24) that houses the piston (32) in a manner allowing reciprocation, a crankshaft (62) that is connected to the piston (32) via a connecting rod (80) , a crankcase (60) that houses the crankshaft (62) in a manner allowing rotation, a…",
  "path": "/patents/970513",
  "publishedAt": "2014-09-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B25/06",
    "MAKITA CORP [JP]"
  ],
  "textContent": "A two-stroke engine is provided with a piston (32), a cylinder (24) that houses the piston (32) in a manner allowing reciprocation, a crankshaft (62) that is connected to the piston (32) via a connecting rod (80) , a crankcase (60) that houses the crankshaft (62) in a manner allowing rotation, a mixture gas passage (36) that introduces mixture gas into the crankcase (60) , a scavenging passage (66) that extends between a scavenging intake (56) that opens into the crankcase (60) and a scavenging port (68) that opens into the cylinder (24); and an air passage (44) that is connected to an intermediate position (66a) of the scavenging passage (66) for introducing air into the scavenging passage (66). The engine is adapted such that, in a part of an upward stroke period of the piston, the crankcase in which negative pressure is generated is connected to the scavenging passage (66) via the scavenging port (68). Accordingly, most of air introduced into the scavenging passage (66) form the air passage flows toward the scavenging port (68) and into the cylinder (24) without changing the direction of flow.",
  "title": "Stratified scavenging two-stroke engine"
}