Patent · US Active

Copper-zinc alloy for a valve guide

US8435361B2 · kind B2 · utility

8Cited by

3References

3Claims

0Family size

Assignee

Diehl Metall Stiftung & Co. KG · DE

Inventors

Norbert Gaag · Achern, DE
Alexander Dehnelt · Koblenzer Straße, DE

Key dates

Filing date	Jun 1, 2007
Grant date	May 7, 2013
Priority date	—
Expiry date	Apr 20, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L3/08
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A novel copper-zinc alloy is particularly suited for a valve guide. The copper-zinc alloy contains 59 to 73% copper, 2.7 to 8.3% manganese, 1.5 to 6% aluminum, 0.2 to 4% silicon, 0.2 to 3% iron, 0 to 2% lead, 0 to 2% nickel, 0 to 0.2% tin, remainder zinc and inevitable impurities.

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