GB937278A - Improvements relating to electric motors - Google Patents

Improvements relating to electric motors

Info

Publication number
GB937278A
GB937278A GB28112/62A GB2811262A GB937278A GB 937278 A GB937278 A GB 937278A GB 28112/62 A GB28112/62 A GB 28112/62A GB 2811262 A GB2811262 A GB 2811262A GB 937278 A GB937278 A GB 937278A
Authority
GB
United Kingdom
Prior art keywords
switch
motor
lead
limit switch
valve
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
GB28112/62A
Inventor
George Arthur Holloway
William Mitchell Greenwood
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB28112/62A priority Critical patent/GB937278A/en
Publication of GB937278A publication Critical patent/GB937278A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

937,278. Control of D.C. motors. ROLLS-ROYCE Ltd. July 20, 1962, No. 28112/62. Class 38 (3). When switch 44 for controlling a reversible motor is moved to the open position, relay coil 41 is de-energized so that switch 40 is positioned to complete a circuit from power-lead 18 through limit switch 16, field winding 11, brake coil 15 and armature 10 to return-lead 23. The motor drives a valve member to a closed position, wherein limit switch 16 is opened to stop the motor. If switch 44 is now closed, relay coil 41 is energized to move switch 40 to its alternative position. The motor circuit now includes field winding 12, power-lead 19 and return-lead 22 so that the motor drives the valve towards the open position until limit switch 17 opens. Each limit switch is maintained closed except when the motor is at the respective end of its travel. The valve may be a shut-off cock in a high pressure fuel line forming part of a gas turbine fuel arrangement. The system shown prevents accidental operation of the valve if a stray voltage is applied across a field winding.
GB28112/62A 1962-07-20 1962-07-20 Improvements relating to electric motors Expired GB937278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28112/62A GB937278A (en) 1962-07-20 1962-07-20 Improvements relating to electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28112/62A GB937278A (en) 1962-07-20 1962-07-20 Improvements relating to electric motors

Publications (1)

Publication Number Publication Date
GB937278A true GB937278A (en) 1963-09-18

Family

ID=10270469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28112/62A Expired GB937278A (en) 1962-07-20 1962-07-20 Improvements relating to electric motors

Country Status (1)

Country Link
GB (1) GB937278A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002483A1 (en) * 1979-05-08 1980-11-13 Eaton Ltd Directional control system
US8499874B2 (en) 2009-05-12 2013-08-06 Icr Turbine Engine Corporation Gas turbine energy storage and conversion system
US8669670B2 (en) 2010-09-03 2014-03-11 Icr Turbine Engine Corporation Gas turbine engine configurations
US8866334B2 (en) 2010-03-02 2014-10-21 Icr Turbine Engine Corporation Dispatchable power from a renewable energy facility
US8984895B2 (en) 2010-07-09 2015-03-24 Icr Turbine Engine Corporation Metallic ceramic spool for a gas turbine engine
US9051873B2 (en) 2011-05-20 2015-06-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine shaft attachment
US10094288B2 (en) 2012-07-24 2018-10-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine volute attachment for a gas turbine engine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002483A1 (en) * 1979-05-08 1980-11-13 Eaton Ltd Directional control system
US8499874B2 (en) 2009-05-12 2013-08-06 Icr Turbine Engine Corporation Gas turbine energy storage and conversion system
US8708083B2 (en) 2009-05-12 2014-04-29 Icr Turbine Engine Corporation Gas turbine energy storage and conversion system
US8866334B2 (en) 2010-03-02 2014-10-21 Icr Turbine Engine Corporation Dispatchable power from a renewable energy facility
US8984895B2 (en) 2010-07-09 2015-03-24 Icr Turbine Engine Corporation Metallic ceramic spool for a gas turbine engine
US8669670B2 (en) 2010-09-03 2014-03-11 Icr Turbine Engine Corporation Gas turbine engine configurations
US9051873B2 (en) 2011-05-20 2015-06-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine shaft attachment
US10094288B2 (en) 2012-07-24 2018-10-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine volute attachment for a gas turbine engine

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