{
  "$type": "site.standard.document",
  "description": "The invention relates to a cylinder arrangement (1) for an internal combustion engine, including a cylinder (2) in which a piston (3) is arranged to be movable along a longitudinal cylinder axis (A) to and fro between a top dead centre position and a bottom dead centre position, wherein in the…",
  "path": "/patents/1011648",
  "publishedAt": "2011-06-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01L3/22",
    "WAERTSILAE NSD SCHWEIZ AG [CH]"
  ],
  "textContent": "The invention relates to a cylinder arrangement (1) for an internal combustion engine, including a cylinder (2) in which a piston (3) is arranged to be movable along a longitudinal cylinder axis (A) to and fro between a top dead centre position and a bottom dead centre position, wherein in the cylinder (2) a combustion chamber (4) is defined by a cylinder cover (5), by a cylinder wall (21) of the cylinder (2) and by a piston surface (31) of the piston (3). At least one charge-cycle valve (6, 61, 62) is provided in a gas exchange opening (7) of the cylinder cover (5), wherein the charge-cycle valve (6, 61, 62) includes a valve disk (61) cooperating in the operation state with a valve seat (71, 711, 712) of the gas exchange opening (7) in such a way, that in a closed position of the charge-cycle valve (6, 61, 62) the combustion chamber (4) is sealed with respect to a gas feeding conduct (8). According to the invention, the valve seat (71, 711, 712) is movably arranged between a high-ratio position (HR) and a low-ratio position (LR) so that within the combustion chamber (4) a compression-ratio is adjustable to a pre-settable compression-ratio value. Furthermore the invention relates to a method for operating an internal combustion engine as well as to an internal combustion engine having a cylinder arrangement according to the invention.",
  "title": "A cylinder arrangement for an internal combustion engine"
}