Patent · US Expired

Injection valve comprising an optimized surface geometry between a nozzle body and a retaining nut

US6799748B2 · kind B2 · utility

2Cited by

2References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Olaf Enke · Columbia, US
Gunter Lewentz · Regensburg, DE
Alwin Perras · Johanngeorgenstadt, DE
Andreas Voigt · Regensburg, DE
Hakan Yalcin · Regensburg, DE

Key dates

Filing date	Oct 14, 2002
Grant date	Oct 5, 2004
Priority date	—
Expiry date	Oct 14, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The injection valve has a housing, a nozzle body and a clamping nut connected to the housing that contacts the nozzle body with first contact surface (9) acting on a second contact surface (10), whereby the clamping nut clamps the nozzle body against the housing. The first or second contact surface has a curvature (24) towards the second or first contact surface and the both contact surfaces are in contact in the area of the curvature.

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