Flow regulating valve subassembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9255588
APP PUB NO 20140312250A1
SERIAL NO

14256908

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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.

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Patent Owner(s)

  • ROBERT BOSCH GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amrhein, Jan Simpsonville, US 4 13

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