Patent · US Active

Cylinder phaser valves

US8850952B2 · kind B2 · utility

2Cited by

2References

22Claims

0Family size

Inventor

David E. Albrecht · Schwenksville, US

Key dates

Filing date	Feb 22, 2010
Grant date	Oct 7, 2014
Priority date	—
Expiry date	Oct 9, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7904
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A phaser valve for a piston and cylinder assembly helps to keep a pair of pistons in phase with each other. The phaser valve includes a poppet which is slidable between opposing seats of a valve housing. The poppet includes a head and a stem, both the head and the stem having concave portions which facilitate the flow of hydraulic fluid across the valve. The poppet head has two generally conical ends, so that the head makes a fluid-tight seal with a seat when the head is urged towards either seat. Due to its construction, the phaser valve may be built to fit within a very small space, while still allowing a substantial flow of fluid when the head is not in abutment with one of the seats.

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