Patent · US Expired

Vacuum brake booster

US6477935B1 · kind B1 · utility

3Cited by

3References

11Claims

0Family size

Assignee

Continental Teves AG & Co. OHG · DE

Inventors

Jürgen Schonlau · Eltville am Rhein, DE
Ralf Harth · Darmstadt, DE
Uwe Kley · Frankfurt am Main, DE
Rolf Fellinger · Dreikirchen, DE
Steffen Linkenbach · Eschborn, DE

Key dates

Filing date	May 16, 2001
Grant date	Nov 12, 2002
Priority date	—
Expiry date	May 16, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T17/008
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The present invention relates to a vacuum brake force booster which includes a valve piston with a pedal push rod that is axially slidable in a vacuum housing, further including a control housing and a poppet valve connected to the valve piston, and an air filter. The air filter is arranged in the valve piston and forms, in conjunction with an associated valve piston sealing seat for the air filter abuttable thereon, a variable flow cross-section for the outside air that flows through the poppet valve.

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