{
  "$type": "site.standard.document",
  "description": "A machine (101) having one or more cylinders (103), each cylinder (103) having an inner surface (105) configured to engage at least a portion of a circumferential surface of a piston ring (107) of a piston (109), the inner surface (105) having a plurality of recesses (129) indented into the inner…",
  "path": "/patents/932231",
  "publishedAt": "2017-01-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02F1/004",
    "FORD GLOBAL TECH LLC [US]"
  ],
  "textContent": "A machine (101) having one or more cylinders (103), each cylinder (103) having an inner surface (105) configured to engage at least a portion of a circumferential surface of a piston ring (107) of a piston (109), the inner surface (105) having a plurality of recesses (129) indented into the inner surface (105), each recess (129) having a circumferential dimension (145), the recesses (129) being arranged into a row (151) that extends circumferentially around the inner surface (105), the recesses (129) of the row (151) having a circumferential spacing (150) between an adjacent recess (129), wherein the ratio of the dimension of the recess (129) in a circumferential direction to the dimension of the circumferential spacing is approximately 2:1.",
  "title": "MACHINE WITH REDUCED CYLINDER FRICTION"
}