{
  "$type": "site.standard.document",
  "coverImage": {
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    "mimeType": "image/png",
    "size": 122879
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  "description": "The unit (110) has a cylinder liner (111), and a piston (112) comprising a piston upper edge (129) and a piston lower edge (130). The piston is moved back and forth in an axial direction along a piston axis in the liner between an upper dead center (OT) and a lower dead center. A cylinder…",
  "path": "/patents/987981",
  "publishedAt": "2013-07-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01M1/08",
    "WAERTSILAE NSD SCHWEIZ AG [CH]"
  ],
  "textContent": "The unit (110) has a cylinder liner (111), and a piston (112) comprising a piston upper edge (129) and a piston lower edge (130). The piston is moved back and forth in an axial direction along a piston axis in the liner between an upper dead center (OT) and a lower dead center. A cylinder lubrication device (127) has a lubricant opening (141) that is arranged in the liner. The opening is formed between the edges in an upper dead center-position of the piston. The piston has a circulating recess in an area in which the opening is positioned in the dead center-position of the piston. An independent claim is also included for a method for supplying lubricant to a piston of a piston-cylinder-unit.",
  "title": "Piston-cylinder unit and method for supplying lubricant to a piston of a piston-cylinder unit for a reciprocating piston combustion engine"
}