Patent · US Active

Injection valve

US7963465B2 · kind B2 · utility

1Cited by

7References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jurgen Lander · Stuttgart, DE
Dieter Maier · Rettenberg, DE
Franz Thoemmes · Bietigheim-Bissingen, DE

Key dates

Filing date	Oct 5, 2005
Grant date	Jun 21, 2011
Priority date	—
Expiry date	Dec 12, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M51/0682
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An injection valve for fuel-injection systems has a valve-seat support, a valve needle, a solenoid and a connection piece having a filter, to convey the fuel. Valve opening and valve seat are formed on the one-piece valve-seat support itself, which additionally guides the valve needle so as to be axially displaceable; solenoid coil and connector plug are combined in a separate, plastic-extrusion-coated coil part, the magnetic cup is placed over the coil part, and the connection piece is formed as separate plastic-injection-molded part having an integrated filter. Joining and sealing points between the connection piece on the one side and the coil part, magnetic cup and/or valve-seat support on the other side are bonded.

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