GB692527A - Improvements in or relating to centrifugal governors - Google Patents

Improvements in or relating to centrifugal governors

Info

Publication number
GB692527A
GB692527A GB12446/51A GB1244651A GB692527A GB 692527 A GB692527 A GB 692527A GB 12446/51 A GB12446/51 A GB 12446/51A GB 1244651 A GB1244651 A GB 1244651A GB 692527 A GB692527 A GB 692527A
Authority
GB
United Kingdom
Prior art keywords
passage
valve
nozzle
governor
sleeve
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
GB12446/51A
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.)
ONSRUD MACHINE WORKS Inc
Original Assignee
ONSRUD MACHINE WORKS Inc
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 ONSRUD MACHINE WORKS Inc filed Critical ONSRUD MACHINE WORKS Inc
Publication of GB692527A publication Critical patent/GB692527A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
    • G05D13/08—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover without auxiliary power
    • 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
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/06—Adaptations for driving, or combinations with, hand-held tools or the like control thereof
    • F01D15/062—Controlling means specially adapted therefor
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/205—Centrifugal governers directly linked to valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Turbines (AREA)

Abstract

692,527. Centrifugal governors; elastic-fluid turbines. ONSRUD MACHINE WORKS, Inc. May 28, 1951 [Feb, 21, 1951], No. 12446/51. Classes 57 and 110(iii) [Also in Group XXIX] A centrifugal governor, particularly for controlling the flow of pressure fluid to a high speed turbine rotor 10 driving a rotary tool, comprises a centrifugally expansible elastic body 33 carried by a member 9 secured to a driving shaft 3 and an axially movable sleeve 25 radially confining the elastic body and abutting one end thereof, whereby the body is caused to expand axially under centrifugal force and move the sleeve which causes the speed to be controlled. The latter is keyed to the elastic body at 34 to ensure its return movement. The flow of pressure fluid from an inlet 14 through passages 15, 19 leading to a turbine nozzle 11 is controlled by a valve 16 which is loaded by a spring 21 and is subjected to fluid pressure on its front surface through the passage 15 and on its rear surface through passages 22, 22.1 in which an adjustable throttle 23 may be provided. A bleed passage 24. controlled by a shoulder 27 on the governor sleeve 25, is normally open to atmosphere so that the pressure on the rear of the valve 16 is reduced and the latter remains open. When the speed increases beyond a predetermined value the bleed passage 24 closes and full inlet pressure acts on the rear of the valve 16 and closes it. The bleed passage 24 is formed in a plug member 35 and the inner end of the passage is eccentric with the axis of the plug' member. Rotation of the latter adjusts the axial position of the inner end of the passage with respect to the shoulder 27 and thus the speed at which the bleed passage is closed. A second nozzle 11.1 uncontrolled by the governor is provided. In another embodiment the governor sleeve 25 is loaded axially by a spring washer. Instead of the second nozzle the valve 16 is provided with a restricted bore which is always open to the nozzle.
GB12446/51A 1951-02-21 1951-05-28 Improvements in or relating to centrifugal governors Expired GB692527A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US692527XA 1951-02-21 1951-02-21

Publications (1)

Publication Number Publication Date
GB692527A true GB692527A (en) 1953-06-10

Family

ID=22087716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12446/51A Expired GB692527A (en) 1951-02-21 1951-05-28 Improvements in or relating to centrifugal governors

Country Status (1)

Country Link
GB (1) GB692527A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128989A (en) * 1964-04-14 Turbine overspeed control
DE3705711A1 (en) * 1986-02-24 1987-08-27 Tech Dev Inc AIR STARTER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128989A (en) * 1964-04-14 Turbine overspeed control
DE3705711A1 (en) * 1986-02-24 1987-08-27 Tech Dev Inc AIR STARTER
GB2187235A (en) * 1986-02-24 1987-09-03 Tech Dev Inc Starter including an air driven turbine
GB2187235B (en) * 1986-02-24 1990-07-04 Tech Dev Inc Pneumatic starter

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