The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2017
Filed:
Feb. 27, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Monica Nitschke, Asperg, DE;
Dirk Wolf, Renningen, DE;
Rudolf Heinz, Renningen, DE;
Andreas Illmann, Weil Der Stadt, DE;
Horst Jung, Fellbach, DE;
Nikola Jovicic, Stuttgart, DE;
Stefan Woerz, Vaihingen/Enz, DE;
Guenther Hohl, Stuttgart, DE;
Uwe Iben, Calw-Heumaden, DE;
Raed Hamada, Stuttgart, DE;
Elmar Vier, Freiberg, DE;
Werner Nitschke, Asperg, DE;
Dietmar Kratzer, Tamm, DE;
Peter Wassermann, Weil Der Stadt, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A valve for a cold gas generator for an airbag in a vehicle includes: a valve chamber; a control chamber; a control piston; an overflow channel; a retaining element; and a shutoff element. The valve chamber includes an inlet from the cold gas generator and an outlet to the airbag. The control piston separates the control chamber and the valve chamber. The control piston is movable between an open position and a closed position, the control piston releasing the outlet in the open position and closing it in the closed position. The control piston has (i) a first active piston surface on the side of the valve chamber, and (ii) a second active piston surface on the side of the control chamber. The first piston surface is smaller than the second piston surface. The overflow channel fluidically connects the valve chamber and the control chamber to one another.