Patent · US Expired

Cylinder-piston arrangement

US4422368A · kind A · utility

1Cited by
4References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 8, 1982
Grant dateDec 27, 1983
Priority date
Expiry dateNov 8, 2002

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16J3/06
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A relatively movable piston and cylinder are joined by an elastic sealing element which engages the piston and cylinder at spaced locations and at least partially defines a working chamber. The sealing element bears against a bearing surface via a lubricant space, and means are provided for feeding lubricant between the bearing surface and the sealing element. Part of the bearing surface comprises a transition surface section extending oblique to the axis of the cylinder. The lubricant feed mouth opens to the bearing surface at a predetermined location relative to the transition surface section of the bearing surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.