GB497613A - Improvements in and relating to speed control of elastic fluid engines - Google Patents

Improvements in and relating to speed control of elastic fluid engines

Info

Publication number
GB497613A
GB497613A GB22320/37A GB2232037A GB497613A GB 497613 A GB497613 A GB 497613A GB 22320/37 A GB22320/37 A GB 22320/37A GB 2232037 A GB2232037 A GB 2232037A GB 497613 A GB497613 A GB 497613A
Authority
GB
United Kingdom
Prior art keywords
turbine
speed
lever
stator
machine
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
Application number
GB22320/37A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB497613A publication Critical patent/GB497613A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D13/00—Combinations of two or more machines or engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Velocity Or Acceleration (AREA)

Abstract

497,613. Fluid-pressure servomotorcontrol systems. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 13, 1937, No. 22320. Convention date, Aug. 13, 1936. [Class 135] [Also in Group XXVI] A turbine 10 drives apart of a paper making machine through reduction gearing 11 and is controlled by a throttle valve 15 adjusted by a centrifugal governor 36 driven by a synchronous motor 40. The centrifugal governor 36 actuates a control valve 26 controlling a port 25 in a follow-up sleeve 23 which controls the flow of fluid medium from a pipe 19 having a throttle 21 and connected to a cylinder 16 having a spring loaded piston 17. The piston 17 is connected to the valve 15 and through a dashpot 29 to a lever 31 loaded by springs 33, 34 and connected to the sleeve 23. The turbine 10 drives a machine 44 the stator of which is supplied by a threephase network 50 and the frequency at the slip rings 43 is equal to the sum of the frequency of the network 50 and that produced by the speed of the rotor, i.e. the speed of the turbine 10. The slip rings 43 are connected to the motor 40. The speed of the motor 40 remains constant and the speed of the turbine 10 may be varied by varying the frequency of the network 50. This is effected by adjusting the fulcrum 70 of a fluid servomotor 64, similar to the one described above, fitted to the turbine 57 driving the alternator 55. If it is desired to control the speeds of other turbines 12 driving other parts of the paper making machine so that they are equal or proportional to the speed of turbine 10 then each turbine 12 is fitted with a servomotor controlled by a speed governor similar to the turbine 10 but the fulcrum of the lever 94 is adjustable. The turbine 12 drives the shaft 116 connected to a rotor of a machine through a variable speed gear 112 and the stator 122 of the machine is supplied with a current from an alternator 138 driven by the turbine 10. If the frequencies in the rotor and stator vary then the stator will be subjected to a torque and through the lever 104 adjust the lever 94.
GB22320/37A 1936-08-13 1937-08-13 Improvements in and relating to speed control of elastic fluid engines Expired GB497613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497613XA 1936-08-13 1936-08-13

Publications (1)

Publication Number Publication Date
GB497613A true GB497613A (en) 1938-12-22

Family

ID=21961573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22320/37A Expired GB497613A (en) 1936-08-13 1937-08-13 Improvements in and relating to speed control of elastic fluid engines

Country Status (1)

Country Link
GB (1) GB497613A (en)

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