Patent · US Active

Spring-actuated air-brake cylinder for vehicle brake systems

US7451690B2 · kind B2 · utility

11Cited by

23References

14Claims

0Family size

Assignee

WABCO GmbH · DE

Inventors

Frank Schrader · Altwarmbüchen, DE
Oliver Brandt · Braunschweig, DE
Jurgen Ewald · Mülheim an der Ruhr, DE
Wilfried Matthias · Bad Nenndorf, DE
Andreas Richter · Gaimersheim, DE

Key dates

Filing date	Jul 18, 2006
Grant date	Nov 18, 2008
Priority date	—
Expiry date	Jan 16, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T17/088
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A spring-actuated air-brake cylinder as the diaphragm cylinder for vehicle brake systems includes a diaphragm, an actuator-spring chamber in which there is received a spring-actuated piston, which is acted on by a compression spring as the actuator spring and is actively connected to the diaphragm, which is disposed between the actuator-spring chamber and a pressure chamber, in which there is guided moveably a sealed push rod, which can include a pressure member on its diaphragm side. The spring-actuated diaphragm is connected to the push rod or to the pressure member or to the spring-actuated piston by means of vulcanization.

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