Device for controlling a volumetric flow rate of a medium stored under pressure in order to activate an impact protection device, and device for activating an impact protection device

US9908501B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Klaus Heyer · Freiberg, DE
• Johannes Schmid · Schwäbisch Gmünd, DE
• Ignaz Hatt · Buchenberg, DE
• Tim Maier · Plochingen, DE
• Franz Mayer · Birkenfeld, DE
• Horst Beling · Heilbronn, DE
• Peter Rues · Sonthofen, DE

Key dates

• Filing date: Jan 27, 2015
• Grant date: Mar 6, 2018
• Expiry date: Mar 1, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D7/014
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A device for controlling a volumetric flow rate of a medium stored under pressure in order to activate an impact protection device, having a control module that includes a valve body having a stepped through-opening, and a control piston guided axially in the through-opening of the valve body, and a control valve that influences the movement of the control piston, the valve body having at a first end a closable medium inlet opening having a valve chamber. The control valve and the control module are situated in a common housing sleeve, the valve body of the control module being pressed into a first end of the housing sleeve until it comes to a stop on a housing shoulder, and the control valve being introduced into and fixed in a second end of the housing sleeve.