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:
Jun. 13, 2023
Filed:
Sep. 11, 2019
Applicant:
Knorr-bremse Systeme Für Schienenfahrzeuge Gmbh, Munich, DE;
Inventors:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 8/36 (2006.01); B60T 8/17 (2006.01); B60T 13/68 (2006.01); B60T 15/02 (2006.01); B60T 15/52 (2006.01);
U.S. Cl.
CPC ...
B60T 8/3605 (2013.01); B60T 8/1705 (2013.01); B60T 13/683 (2013.01); B60T 15/027 (2013.01); B60T 15/52 (2013.01);
Abstract
A pressure equalization valve arrangement for a rail brake system includes a hold valve and a membrane vent valve each having a control chamber. The hold valve and vent valve are piloted by a respective solenoid valve. A further solenoid valve is connected to the control chamber of the vent valve to allow the pressure across the vent valve membrane to be equalized with the brake cylinder pressure to decrease the pressure difference across the membrane. This results in an improved vent time.