GB811640A - Improvements in or relating to electric actuators for fluid flow control valves - Google Patents
Improvements in or relating to electric actuators for fluid flow control valvesInfo
- Publication number
- GB811640A GB811640A GB686056A GB686056A GB811640A GB 811640 A GB811640 A GB 811640A GB 686056 A GB686056 A GB 686056A GB 686056 A GB686056 A GB 686056A GB 811640 A GB811640 A GB 811640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- motor
- casing
- shaft
- unit
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
- F16K31/045—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means with torque limiters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
811,640. Electric motor driving arrangements. ROTORK ENGINEERING CO. Ltd. Feb. 1, 1957 [March 5, 1956], No. 6860/56. Class 35. [Also in Group XXIX] A two-part casing 10. houses a driving unit 13 comprising a reversible electric motor 14 and worm reduction gear, the motor having a horizontal shaft 30 which drives a vertical output shaft 16 through the reduction gear, the shaft 16 terminating in forks 18 that engage the spokes of a stop or gate valve operating wheel. The casing is supported by a column 25 which is adjustably clamped upon one of the pipes leading to the valve casing and the unit 13 is mounted within the casing 10 so that it is free to swing about the shaft 16. The motor 14 is provided with a speed governor 39, which alternatively may be included in the drive; in the latter case the governor may be replaced by a slipping clutch. Any resistance encountered by the motor in closing the valve will cause a reaction in the unit 13 tending to turn it in the opposite direction; this reaction is controlled by a spring 42 connected between a bracket 36 under the motor 14 and an adjusting screw in the casing. When the valve is closed or an obstruction occurs the reaction increases and turns the unit 13 against the spring 42 until a micro-switch 51 on the bracket 36 contacts a fixed pillar 49 in the casing and de-energizes the motor. The coupling between the shaft 16 and forks 18 includes a manually adjustable coupling which either provides for direct connection therebetween or for one revolution of lost motion so that the momentum built up by the driving unit 13 ensures the valve is loosened prior to being opened. The motor is switched off when the valve is opened by a micro-switch on the gear-box actuated by a cam 62 driven through a clock-type reduction gear 63, 64, 65 and 67 from the forks 18 by a clip 69 and a spindle 68 passing inside the shaft 16. The valve may be manually operated upon disconnecting the manually adjustable coupling. Additional switches 51, only one of which is shown, and another spring 42 may be provided so that the safety cut-out functions in both directions of valve travel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB686056A GB811640A (en) | 1956-03-05 | 1956-03-05 | Improvements in or relating to electric actuators for fluid flow control valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB686056A GB811640A (en) | 1956-03-05 | 1956-03-05 | Improvements in or relating to electric actuators for fluid flow control valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB811640A true GB811640A (en) | 1959-04-08 |
Family
ID=9822082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB686056A Expired GB811640A (en) | 1956-03-05 | 1956-03-05 | Improvements in or relating to electric actuators for fluid flow control valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB811640A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3071149A (en) * | 1959-12-03 | 1963-01-01 | Aluminum Co Of America | Mechanical cleaning valve construction |
| EP0202354A1 (en) * | 1985-05-23 | 1986-11-26 | Japan Oxygen Co., Ltd. | Remote-control apparatus for opening or closing the valve of containers or the like |
-
1956
- 1956-03-05 GB GB686056A patent/GB811640A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3071149A (en) * | 1959-12-03 | 1963-01-01 | Aluminum Co Of America | Mechanical cleaning valve construction |
| EP0202354A1 (en) * | 1985-05-23 | 1986-11-26 | Japan Oxygen Co., Ltd. | Remote-control apparatus for opening or closing the valve of containers or the like |
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