Patent · US Expired

Pressure oil guide device for injection pump shaft

US4711220A · kind A · utility

0Cited by

5References

17Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Ulrich Letsche · Stuttgart, DE
Wolfgang Rapp
Guenther Haefner · Winnenden, DE
Wilhelm Tonhaeuser · Bad Marienberg, DE

Key dates

Filing date	Nov 4, 1985
Grant date	Dec 8, 1987
Priority date	—
Expiry date	Nov 4, 2005

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D1/183
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

This invention relates to a hydraulic-oil feeding device for a hydraulically operated injection timing mechanism disposed on the injection pump shaft of an injection pump for air-compressing injection-type internal-combustion engines. A pump shaft is partially disposed in an injection pump housing. A feeding member leads from the pump housing to the pump shaft. An arrangement of bores forms a passage or transition between the feeding member and the injection timing mechanism. The passage is interrupted during each injection process, and the passage is open in between injection processes.

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