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1. US20120103441 - Pressure control valve

Office United States of America
Application Number 13382292
Application Date 19.05.2010
Publication Number 20120103441
Publication Date 03.05.2012
Grant Number 08752585
Grant Date 17.06.2014
Publication Kind B2
IPC
F16K 11/07
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
11Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid
02with all movable sealing faces moving as one unit
06comprising only sliding valves
065with linearly sliding closure members
07with cylindrical slides
CPC
F16K 31/0624
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Actuating devices;; Operating means; Releasing devices
02electric
06using a magnet ; , e.g. diaphragm valves, cutting off by means of a liquid
0603Multiple-way valves
0624Lift valves
F16K 31/0686
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Actuating devices;; Operating means; Releasing devices
02electric
06using a magnet ; , e.g. diaphragm valves, cutting off by means of a liquid
0686Braking, pressure equilibration, shock absorbing
G05D 16/103
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
16Control of fluid pressure
04without auxiliary power
10the sensing element being a piston or plunger
103the sensing element placed between the inlet and outlet
G05D 16/2024
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
16Control of fluid pressure
20characterised by the use of electric means
2006with direct action of electric energy on controlling means
2013using throttling means as controlling means
2024the throttling means being a multiple-way valve
G05D 16/2097
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
16Control of fluid pressure
20characterised by the use of electric means
2093with combination of electric and non-electric auxiliary power
2097using pistons within the main valve
Y10T 137/7905
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
137Fluid handling
7722Line condition change responsive valves
7837Direct response valves [i.e., check valve type]
7904Reciprocating valves
7905Plural biasing means
Applicants Buse Werner
Pierburg GmbH
Fernandes Alvito
Inventors Buse Werner
Fernandes Alvito
Agents Thot Norman B.
Title
(EN) Pressure control valve
Abstract
(EN)

A pressure control valve includes a housing comprising a reference pressure connection, a reference pressure chamber, a preliminary pressure connection, a preliminary pressure chamber, a control pressure connection and a control pressure chamber which are configured to cooperate with a control member moveable in an axial direction within the housing so as to adjust a desired control pressure between a preliminary pressure at the preliminary pressure connection and a reference pressure at the reference pressure connection. A driving device is configured to act on the control member. At least one first sealing device is configured to seal the reference pressure chamber against the control member. At least one second sealing device comprising a second sealing element is configured to seal the preliminary pressure chamber against the reference pressure chamber. At least one third sealing device is configured to seal the control pressure chamber against the preliminary pressure chamber.