Pneumatic brake booster

US8955423B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Andreas Weiss · Nashua, US
• Juergen Faller · Alzenau, DE
• Andreas Bischoff · Frankfurt am Main, DE
• Volker Ickler · Tauberbischofsheim, DE
• Ralf Jakobi · Flörsheim, DE
• Sven Mainz · Raunheim, DE

Key dates

• Filing date: Sep 22, 2009
• Grant date: Feb 17, 2015
• Expiry date: Mar 30, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/5675
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A tandem-type pneumatic brake booster, in particular for hydraulic vehicle brake systems, having a housing comprising a first and a second housing half shell, the interior of which is divided with the aid of a partition into a front and a rear booster chamber, wherein the partition has a centrally arranged, circular cavity, through which a control housing or a cylindrical control housing extension extends, and the partition rests sealingly against the control housing or the control housing extension by a sealing element, having a first and a second movable wall, which respectively subdivide the front and the rear booster chamber into a first low-pressure chamber and a first working chamber and into a second low-pressure chamber and a second working chamber, having at least one connecting conduit between the first working chamber and the second working chamber in order to equalize the pressure between said two working chambers.