GB1294282A - Pilot relay - Google Patents
Pilot relayInfo
- Publication number
- GB1294282A GB1294282A GB21268/71A GB2126871A GB1294282A GB 1294282 A GB1294282 A GB 1294282A GB 21268/71 A GB21268/71 A GB 21268/71A GB 2126871 A GB2126871 A GB 2126871A GB 1294282 A GB1294282 A GB 1294282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- stem
- chamber
- controls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2278—Pressure modulating relays or followers
- Y10T137/2365—Plural series units
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87217—Motor
- Y10T137/87225—Fluid motor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
1294282 Fluid-pressure servomotor systems FISHER CONTROLS CO 19 April 1971 [9 Feb 1970] 21268/71 Heading G3P A relay valve comprises an inlet 34, an outlet 74, an exhaust 71 and a passage 77 for applying a control pressure to a diaphragm 60. A valve 45 controls the inlet fluid which can pass into chamber 38 to the outlet 74 and a valve 43 controls fluid from the outlet to the exhaust 71. The valves 43, 45 are mounted on flexible discs 48, 50, Fig.3 (not shown) which bias the valves upwardly. The valve 45 has a stem 52 which is adapted to abut a stem 54 of valve 43. The valve 43 is slidable on the stem 54 which is secured to the diaphragm 60. It is biased downwardly by a spring 56. The length of the stem 52 is adjustable to alter the gain of the relay. A bleed is taken from the supply through a member 70 to the passage 77. Operation. An electrical input is fed into a, torque motor 22 having an armature 24 which controls the bleed from a nozzle 26. The pressure in a chamber 62 above the diaphragm 60 alters as a consequence and the valves 43, 45 move to either increase or decrease the output pressure to a chamber 13 of a valve actuator 10. An increase in pressure in chamber 13, for example causes a stem 14 to move downwardly, the position being fed back to the armature by a linkage 27 which causes the pressure in chamber 62 to decrease until equilibrium is established at a new output pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US985370A | 1970-02-09 | 1970-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1294282A true GB1294282A (en) | 1972-10-25 |
Family
ID=21740101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21268/71A Expired GB1294282A (en) | 1970-02-09 | 1971-04-19 | Pilot relay |
Country Status (8)
Country | Link |
---|---|
US (1) | US3692054A (en) |
JP (1) | JPS5425190B1 (en) |
BE (1) | BE762642A (en) |
CA (1) | CA931854A (en) |
DE (1) | DE2105776C2 (en) |
FR (1) | FR2079328B1 (en) |
GB (1) | GB1294282A (en) |
NL (1) | NL162759C (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3994311A (en) * | 1973-10-15 | 1976-11-30 | Tangen Drives, Inc. | Pneumatic amplifier |
US3911238A (en) * | 1973-12-06 | 1975-10-07 | Automatic Switch Co | Condition responsive control device with capacity for independent adjustment of control points and transducer therefor |
DE2809554C2 (en) * | 1978-03-06 | 1984-09-20 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Relay valve |
DE3120203A1 (en) * | 1981-05-21 | 1982-12-23 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Relay valve |
US4726395A (en) * | 1983-03-17 | 1988-02-23 | Kunkle Valve Company, Inc. | Flexible guide |
US5439021A (en) * | 1992-09-09 | 1995-08-08 | Fisher Controls International, Inc. | Electro-pneumatic converter |
US6443183B1 (en) * | 2000-06-07 | 2002-09-03 | Transcend Inc. | Valve and assembly for axially movable members |
CA2562183C (en) * | 2004-04-16 | 2011-03-22 | Fisher Controls International Llc | Asymmetric volume booster arrangement for valve actuators |
ATE478674T1 (en) * | 2004-08-31 | 2010-09-15 | Sangart Inc | METHOD FOR IMPROVING HEMODYNAMIC STABILITY USING OXYGEN-CARRYING COMPOSITIONS |
CN101968118B (en) * | 2009-07-28 | 2014-07-30 | 丹佛斯(天津)有限公司 | Expansion valve and diaphragm support structure thereof |
US9074695B2 (en) | 2010-09-15 | 2015-07-07 | Fisher Controls International Llc | Volume booster with discrete capacity adjustment |
US9032986B2 (en) * | 2010-09-15 | 2015-05-19 | Fisher Controls International Llc | Volume booster with variable asymmetry |
CN202302103U (en) * | 2011-04-01 | 2012-07-04 | 通用设备和制造公司 | Lift valve assembly and system for controlling pneumatic actuator |
DE102011108177B4 (en) * | 2011-07-22 | 2013-03-21 | Festo Ag & Co. Kg | valve module |
CN107246498B (en) * | 2017-07-26 | 2023-10-20 | 中国长江电力股份有限公司 | Double pilot valve control system and control method for pressure reducing valve of water supply system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1887322A (en) * | 1928-09-29 | 1932-11-08 | Lewis L Nettleton | Valve for controlling fluid pressure |
US2919716A (en) * | 1955-06-29 | 1960-01-05 | Elliott Brothers London Ltd | Valves |
US2912006A (en) * | 1956-03-12 | 1959-11-10 | Gen Gas Light Co | Valve structure |
US2919711A (en) * | 1958-03-19 | 1960-01-05 | United Aircraft Prod | Tank pressurizing in aerial craft |
US3004526A (en) * | 1958-11-20 | 1961-10-17 | Fairchild Stratos Corp | Pressure controlled positioner |
US3105508A (en) * | 1960-03-29 | 1963-10-01 | Foxboro Co | Pneumatic relay |
US3195416A (en) * | 1962-04-16 | 1965-07-20 | Security Valve Company Of Cali | Pilot or relay valve |
US3548879A (en) * | 1968-11-12 | 1970-12-22 | Teldix Gmbh | Three-way valve |
US3548979A (en) * | 1969-02-24 | 1970-12-22 | Goodyear Tire & Rubber | Brake element with high heat sink characteristics |
-
1970
- 1970-02-09 US US9853A patent/US3692054A/en not_active Expired - Lifetime
-
1971
- 1971-02-05 NL NL7101545.A patent/NL162759C/en not_active IP Right Cessation
- 1971-02-08 DE DE2105776A patent/DE2105776C2/en not_active Expired
- 1971-02-08 FR FR7104125A patent/FR2079328B1/fr not_active Expired
- 1971-02-08 BE BE762642A patent/BE762642A/en not_active IP Right Cessation
- 1971-02-08 JP JP478071A patent/JPS5425190B1/ja active Pending
- 1971-02-08 CA CA104821A patent/CA931854A/en not_active Expired
- 1971-04-19 GB GB21268/71A patent/GB1294282A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL162759B (en) | 1980-01-15 |
DE2105776C2 (en) | 1982-08-19 |
CA931854A (en) | 1973-08-14 |
US3692054A (en) | 1972-09-19 |
FR2079328B1 (en) | 1975-01-17 |
NL7101545A (en) | 1971-08-11 |
JPS5425190B1 (en) | 1979-08-25 |
FR2079328A1 (en) | 1971-11-12 |
DE2105776A1 (en) | 1971-08-19 |
NL162759C (en) | 1980-06-16 |
BE762642A (en) | 1971-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |