Patent · US Expired

Valve timing gear for an internal combustion engine

US5623899A · kind A · utility

2Cited by

1References

7Claims

0Family size

Assignee

Mercedes-Benz Group AG · DE

Inventors

Harry Wolf · Uhingen, DE
Albert Rapp · Ludwigsburg, DE

Key dates

Filing date	Dec 19, 1995
Grant date	Apr 29, 1997
Priority date	—
Expiry date	Dec 19, 2015

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16N27/005
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a valve timing gear for an internal combustion engine having valves, means for actuating the valves and oil supply passages for supplying lubricating oil to the valve actuating means, the oil supply passages have side bores with outlet openings arranged above the valve stem surface areas to be lubricated and a pin-like restrictor with at least one longitudinal groove is disposed in each bore for controlling the oil flow through the bore and guiding it along the pin-like restrictor which ends above surface area to be lubricated.

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