Patent · US Expired

Injection valve

US7108201B2 · kind B2 · utility

2Cited by

6References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Bernhard Fischer · Wien, AT
Bernhard Gottlieb · Munich, DE
Andreas Kappel · Höhenkirchen-Siegertsbrunn, DE
Tim Schwebel · Birkenfeld, DE

Key dates

Filing date	Dec 13, 2004
Grant date	Sep 19, 2006
Priority date	—
Expiry date	Dec 13, 2024

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M61/08
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The injector tip of an injection valve which injects directly into the combustion chamber protrudes therein, thereby incurring the risk that combustion residues can become deposited on the injector tip. When the injection valve is in a closed state, the possible attachments of combustion residues along a separation line (10) are eliminated by means of a special configuration of the surface at the separation line (10) between the valve body and a valve plate. The surface is represented in a smooth, step-less, edge-less and curved manner.

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