Patent · US Expired

Electromagnetically operated valve

US6089475A · kind A · utility

39Cited by

4References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ferdinand Reiter · Markgröningen, DE
Dieter Maier · Rettenberg, DE
Ferdinand Hummer · Breitengüßbach, DE

Key dates

Filing date	Jul 8, 1999
Grant date	Jul 18, 2000
Priority date	—
Expiry date	Jul 8, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M61/168
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The electromagnetically operable valve has the an axially moveable valve needle which is formed from an armature, a valve-closure member and a connecting part connecting the two parts. The tubular connecting part has an elongated slit which, because of widenings of the starting sheet-metal part, has a smaller opening width at the end facing the valve-closure member than over its remaining axial extension. Thus, the valve-closure member can be attached very securely at the lower end of the connecting part by a welded seam, avoiding disadvantageous sink marks. The valve is suitable to be used in fuel-injection.

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