{
  "$type": "site.standard.document",
  "description": "The invention relates to a two-stroke internal combustion engine (1), comprising a crankcase (2) with an air intake (3), in which crankcase (2) a mixture of air, lubricating oil and fuel is contained; and at least one cylinder (4), which is connected to the crankcase (2) and which, together with a…",
  "path": "/patents/1009342",
  "publishedAt": "2011-09-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D45/12",
    "ATLAS COPCO CONSTR TOOLS AB [SE]"
  ],
  "textContent": "The invention relates to a two-stroke internal combustion engine (1), comprising a crankcase (2) with an air intake (3), in which crankcase (2) a mixture of air, lubricating oil and fuel is contained; and at least one cylinder (4), which is connected to the crankcase (2) and which, together with a piston (5) arranged therein, defines a combustion chamber (6), which at least one cylinder (4) having at least one air inlet (7), communicating with the crankcase (2) via an air duct (8), and having a suction port (21), communicating with the crankcase (2) via a suction duct (20). According to the invention, the air duct (8) is connected to the crankcase (2) via a separator (10) having a centrifugal chamber (11) with a circumferential wall (12). The separator (10) is arranged to separate the mixture of air, lubricating oil and fuel by throwing the mixture in a circulating motion outwards to the circumferential wall (11), so that the mixture is separated into a very lean fuel-air mixture fed to the combustion chamber via the air duct (8) and a rich fuel-air mixture fed to the combustion chamber via the suction duct (20).",
  "title": "Two-stroke combustion engine"
}