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1. WO1979001092 - FLUID FLOW REGULATING VALVE AND SYSTEM

Publication Number WO/1979/001092
Publication Date 13.12.1979
International Application No. PCT/US1979/000304
International Filing Date 04.05.1979
IPC
A01G 25/16 2006.01
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
25Watering gardens, fields, sports grounds or the like
16Control of watering
F16K 15/14 2006.01
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
15Check valves
14with flexible valve members
G05D 7/01 2006.01
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
7Control of flow
01without auxiliary power
CPC
A01G 25/16
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
25Watering gardens, fields, sports grounds or the like
16Control of watering
F16K 15/144
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
15Check valves
14with flexible valve members
144the closure elements being fixed along all or a part of their periphery
G05D 7/012
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
7Control of flow
01without auxiliary power
0106the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
012the sensing element being deformable and acting as a valve
Y10T 137/7792
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
7781With separate connected fluid reactor surface
7784Responsive to change in rate of fluid flow
7792Movable deflector or choke
Y10T 137/7869
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]
7869Biased open
Y10T 137/7891
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]
7879Resilient material valve
7888With valve member flexing about securement
7891Flap or reed
Applicants
Inventors
Priority Data
90802622.05.1978US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FLUID FLOW REGULATING VALVE AND SYSTEM
(FR) SOUPAPE ET SYSTEME DE REGLAGE DU DEBIT D"UN FLUIDE
Abstract
(EN)
Fluid distribution systems such as underground sprinkling systems using orifices as flow regulators limit the system to a relatively small range of fluid pressure variation and tend to become blocked by foreign particles. Here a fluid flow regulating valve is inserted in line with a fluid conducting medium to regulate the flow therethrough over a widely varying range of pressure differentials across the valve. The valve is constructed of a body portion (48) having a fluid passageway therethrough terminating at one end in a land (56) having an empirically derived, compound curved section. A compliant reed (58) is affixed to the body portion adjacent the land and operates to press against and conform with the land in response to increasing fluid pressure differential across the reed whereby the rate of fluid flow through the valve remains substantially constant. In an alternative embodiment of the invention, a second similarly shaped land is provided adjacent the reed and opposite the other land to provide bidirectional flow control. The lands are integral portions of the body portion of the valve which is constructed of molded plastic or the like. The reed comprises thin metal shimstock or the like which has been heat staked to the body portion.
(FR)
Des systemes de distribution d"un fluide tels que des systemes d"arrosage souterrains utilisant des orifices comme regulateurs de debit limitent le systeme a une gamme relativement petite de differentes pressions du fluide et ont tendance a se boucher avec des corps etrangers. Ici, une soupape de reglage du debit d"un fluide pour regler le debit et obtenir une large gamme de pressions differentielles sur la soupape. La soupape comprend un corps (48) ayant un passage de fluide se terminant a une extremite par un cordon (56) ayant une section courbe dont la configuration est determinee empiriquement. Une languette souple (58) est fixee au corps, adjacente au cordon et fonctionne en se plaquant contre et en epousant la forme du cordon en reponse a une pression differentielle croissante au niveau de la anche ce qui permet de maintenir la vitesse d"ecoulement du fluide a travers la soupape constante. Dans un autre mode de realisation de l"invention, un second cordon de forme semblable est prevu adjacent a la languette et oppose a l"autre cordon pour obtenir une commande du debit bidirectionnelle. Les cordons sont des parties integrales du corps de la soupape qui est faite en plastique moule ou autre. La languette comprend des lamelles fines metalliques fixees a chaud sur le corps.
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