Patent · US Expired

Microvalve and method for manufacturing a microvalve

US5924674A · kind A · utility

11Cited by

5References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dietmar Hahn · Gerlingen, DE
Heinz Fuchs · Homberg (Efze), DE
Gottfried Flik · Leonberg, DE
Thomas Schittny · Steinheim an der Murr, DE
Alexandra Jauernig · Yokohama, JP

Key dates

Filing date	Feb 21, 1997
Grant date	Jul 20, 1999
Priority date	—
Expiry date	Feb 21, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49425
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The microvalve according to the invention is comprised of an electromagnetic drive and of a multilayer lower valve part, which are permanently bonded to one another and are manufactured separately from one another. The lower valve part includes at least one armature and a valve-closure element, which are axially movable, as well as a housing which at least partially surrounds this axially movable component of the microvalve. The layers of the lower valve part are built up one upon the other by means of (multilayer) electrodeposition. The microvalve can be used in fuel-injection systems of internal combustion engines.

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