Proportional bypass valve having variable area orifice control means

Proportional bypass valve having variable area orifice control means

A proportional bypass valve having a valve spool positioned in a bore in the valve for controlling the flow of fluid between the inlet port and outlet port, the spool having an axial passage and being biased by a spring to a neutral position and responding to pilot flow for controlling the flow rate...

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Hauptverfasser: BYERS, JR., JAMES OTTO
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
FLUID-PRESSURE ACTUATORS
FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS
HEATING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MECHANICAL ENGINEERING
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
WEAPONS
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creator BYERS, JR.
JAMES OTTO
description A proportional bypass valve having a valve spool positioned in a bore in the valve for controlling the flow of fluid between the inlet port and outlet port, the spool having an axial passage and being biased by a spring to a neutral position and responding to pilot flow for controlling the flow rate between said inlet and outlet port and a variable area orifice operatively associated with said passage in said spool for controlling pilot flow rate and having a predetermined pressure drop for any finite position of the spool, the flow rate between the inlet port and outlet port being in proportion to the pilot flow rate as determined by the bias of said spring.
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DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MECHANICAL ENGINEERING ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; WEAPONS</subject><creationdate>1975</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=19751118&amp;DB=EPODOC&amp;CC=US&amp;NR=3920034A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19751118&amp;DB=EPODOC&amp;CC=US&amp;NR=3920034A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BYERS, JR.; 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subjects BLASTING
DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
FLUID-PRESSURE ACTUATORS
FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS
HEATING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MECHANICAL ENGINEERING
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
WEAPONS
title Proportional bypass valve having variable area orifice control means
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