Patent · US Expired

Pump

US8425204B2 · kind B2 · utility

0Cited by
47References
29Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 15, 2005
Grant dateApr 23, 2013
Priority date
Expiry dateNov 16, 2025

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16K15/161
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

Pump, for example for pumping lubricating oil in an internal combustion engine, more particularly a multi-stroke vane cell pump, with a rotor and vanes which can slide at least radially in rotor slots and have vane heads that slide along a stroke contour, the stroke contour having a radial outlet that can be closed by a valve device.

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