Patent · US Active

Dual valve lifter assembly

US7856953B2 · kind B2 · utility

0Cited by

0References

6Claims

0Family size

Assignee

Schaeffler KG · DE

Inventors

Lutz Kirbach · Rochester Hills, US
Florin Bugescu · Canton, US

Key dates

Filing date	Jul 9, 2008
Grant date	Dec 28, 2010
Priority date	—
Expiry date	Jul 1, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2307/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The dual valve lifter assembly has a dual valve lift with two hydraulic lash adjusters therein and a guide for orienting and preventing rotation of the dual valve lifter. The guide has four ledges and the dual valve lifter has four flats which mate with the four ledges. The flats and the ledges prevent the rotation of the lifter. One pair of flats and one pair of ledges are spaced the same while the other pair of flats and the other pair of ledges are spaced at a different distance than the first pair of flats and ledges. The difference in the spacing of the pairs of ledges and flats allows for correct orientation of the lifter when mating it with the guide.

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