Self-regulating flow control device

The valve has a throttle valve control device with control fluid pressure distributing units to distribute the pressure over two surfaces of a piston (4) of a throttle valve and to modify a surface common to the surfaces of the piston. The units apply upstream and downstream pressures over the surfa...

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1. Verfasser: BADINAND, THOMAS
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Sprache:eng ; fre ; ger
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creator BADINAND, THOMAS
description The valve has a throttle valve control device with control fluid pressure distributing units to distribute the pressure over two surfaces of a piston (4) of a throttle valve and to modify a surface common to the surfaces of the piston. The units apply upstream and downstream pressures over the surfaces, so that equilibrium position of the throttle valve is only defined by the ratio of the two pressures. An independent claim is also included for a usage of a valve to control fluid flow at very low and high temperatures. La présente invention se rapporte à une vanne commandée pour le contrôle de débit d'un fluide, présentant une pression en amont (P1) et une pression en aval (P2) de la vanne, caractérisée en ce que le dispositif de contrôle comprend des moyens de distribution de la pression du fluide de commande sur les surfaces (S1, S2) du piston (4), lesdits moyens étant aptes à modifier la surface d'action, c'est-à-dire la surface commune (S1' = S2') aux deux côtés du piston (4) mais subissant des pressions différentes des deux côtés, de sorte que la position d'équilibre prise par l'obturateur est définie uniquement par le rapport des deux pressions appliquées sur lesdites surfaces.
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The units apply upstream and downstream pressures over the surfaces, so that equilibrium position of the throttle valve is only defined by the ratio of the two pressures. An independent claim is also included for a usage of a valve to control fluid flow at very low and high temperatures. La présente invention se rapporte à une vanne commandée pour le contrôle de débit d'un fluide, présentant une pression en amont (P1) et une pression en aval (P2) de la vanne, caractérisée en ce que le dispositif de contrôle comprend des moyens de distribution de la pression du fluide de commande sur les surfaces (S1, S2) du piston (4), lesdits moyens étant aptes à modifier la surface d'action, c'est-à-dire la surface commune (S1' = S2') aux deux côtés du piston (4) mais subissant des pressions différentes des deux côtés, de sorte que la position d'équilibre prise par l'obturateur est définie uniquement par le rapport des deux pressions appliquées sur lesdites surfaces.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; CONTROLLING ; DEVICES FOR VENTING OR AERATING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; PHYSICS ; REGULATING ; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>2005</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20050615&amp;DB=EPODOC&amp;CC=EP&amp;NR=1541913A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,782,887,25571,76555</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20050615&amp;DB=EPODOC&amp;CC=EP&amp;NR=1541913A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BADINAND, THOMAS</creatorcontrib><title>Self-regulating flow control device</title><description>The valve has a throttle valve control device with control fluid pressure distributing units to distribute the pressure over two surfaces of a piston (4) of a throttle valve and to modify a surface common to the surfaces of the piston. 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The units apply upstream and downstream pressures over the surfaces, so that equilibrium position of the throttle valve is only defined by the ratio of the two pressures. An independent claim is also included for a usage of a valve to control fluid flow at very low and high temperatures. 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language eng ; fre ; ger
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source esp@cenet
subjects ACTUATING-FLOATS
BLASTING
COCKS
CONTROLLING
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
title Self-regulating flow control device
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