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:
May. 27, 2014
Filed:
Oct. 24, 2007
Ralf Christmann, Kaiserslautern, DE;
Ralf Christmann, Kaiserslautern, DE;
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
The present invention relates to a valve control device () having a housing (), which comprises a first low pressure chamber () and a first atmospheric pressure chamber (), which are separated from each other in a gas-tight manner by means of a spring-loaded first membrane (); having a control rod () for controlling the position of a locking element of the bypass valve (), wherein the control rod () is operatively connected to the first membrane (), further having a second low pressure chamber (), which is flow-connected to the first low pressure chamber (), and having a second spring-loaded membrane (), which is arranged in the second low pressure chamber () and is coupled to the first membrane (), wherein the control rod () is mounted on the second membrane ().