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. 09, 2016
Filed:
Apr. 18, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Jan Amrhein, Simpsonville, SC (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A flow regulating valve subassembly includes a main valve configured as a seat valve and a valve piston. The valve piston is acted upon via a first end face by the pressure of a first working connection and via an annular surface of the valve piston by the pressure of a second working connection in the opening direction. The valve piston is also acted upon in the closing direction via a second end face by the pressure of the higher-pressure working connection. An adjustable throttle is formed between a housing of the main valve and the valve piston. The throttle has a cross section that changes continuously during displacement of the valve piston and connects the higher-pressure working connection to the second end face. A pilot control valve arrangement is configured to control a control line which connects the second end face to the lower-pressure working connection.