GB495444A - Improvements relating to the control of aircraft engines driving variable-pitch airscrews - Google Patents

Improvements relating to the control of aircraft engines driving variable-pitch airscrews

Info

Publication number
GB495444A
GB495444A GB1341837A GB1341837A GB495444A GB 495444 A GB495444 A GB 495444A GB 1341837 A GB1341837 A GB 1341837A GB 1341837 A GB1341837 A GB 1341837A GB 495444 A GB495444 A GB 495444A
Authority
GB
United Kingdom
Prior art keywords
control
hydraulic
throttle
valve
governor
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
GB1341837A
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.)
ALFRED CAREY CLINCH
Bristol Aeroplane Co Ltd
Original Assignee
ALFRED CAREY CLINCH
Bristol Aeroplane 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 ALFRED CAREY CLINCH, Bristol Aeroplane Co Ltd filed Critical ALFRED CAREY CLINCH
Priority to GB1341837A priority Critical patent/GB495444A/en
Publication of GB495444A publication Critical patent/GB495444A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/305—Blade pitch-changing mechanisms characterised by being influenced by other control systems, e.g. fuel supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

495,444. Fluid-pressure servomotorcontrol systems. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and CLINCH, A. C. May 11, 1937, No. 13418. [Class 135] [Also in Group XXXIII] A power plant assembly for an aeroplane which includes a variable-pitch screw propeller under centrifugal governor control is also provided with connections from the governor to the throttle valve of the engine. A variablepitch propeller is provided with hydraulic pitch varying gear 11, 12, coupled by pipes 16, 17 to a pump 21 driven by a shaft 22 from the engine shaft. Bevel gears 23, 24 drive a centrifugal governor 26, a lever 34 thereof providing control of the pump flow in the pipes 16, 17. A further lever 40 operated by the governor is connected by linkages with a control valve 81 of a hydraulic piston unit 71 which through linkages operate upon the throttle lever 46. This throttle control is further linked by a rod 53 with a booster control 61 that effects its control through a second valve apparatus 65. In the event of the pitch changes not producing sufficiently quickly a control of the revolutions per minute, the overriding throttle control comes into play. In a modification, the linkage 40 is replaced by an electric linkage, the arm 39 in this case moving between contact points in an electric circuit which also includes a solenoid adapted to operate the hydraulic piston valve. It may also be provided that the two hydraulic valves shall control separate hydraulic pistons which are suitably linked to the link 47 instead of using a single piston 71. Specifications 134,258, 151,917, 250,292, [all in Class 114], 450,587, and 454,154 are referred to.
GB1341837A 1937-05-11 1937-05-11 Improvements relating to the control of aircraft engines driving variable-pitch airscrews Expired GB495444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1341837A GB495444A (en) 1937-05-11 1937-05-11 Improvements relating to the control of aircraft engines driving variable-pitch airscrews

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1341837A GB495444A (en) 1937-05-11 1937-05-11 Improvements relating to the control of aircraft engines driving variable-pitch airscrews

Publications (1)

Publication Number Publication Date
GB495444A true GB495444A (en) 1938-11-11

Family

ID=10022598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1341837A Expired GB495444A (en) 1937-05-11 1937-05-11 Improvements relating to the control of aircraft engines driving variable-pitch airscrews

Country Status (1)

Country Link
GB (1) GB495444A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432320A (en) * 1944-03-13 1947-12-09 Daniel G Lilley Torque responsive variable pitch propeller
US2478796A (en) * 1944-05-01 1949-08-09 Baldwin Locomotive Works Overload control system for fluid propelling apparatus
US2525694A (en) * 1946-02-28 1950-10-10 Armstrong Siddeley Motors Ltd Control means for turbo-prop units
US2612226A (en) * 1946-04-04 1952-09-30 Honeywell Regulator Co Engine power control apparatus
DE757051C (en) * 1939-04-01 1954-06-14 Messerschmitt Boelkow Blohm Device for stopping internal combustion engines with external ignition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757051C (en) * 1939-04-01 1954-06-14 Messerschmitt Boelkow Blohm Device for stopping internal combustion engines with external ignition
US2432320A (en) * 1944-03-13 1947-12-09 Daniel G Lilley Torque responsive variable pitch propeller
US2478796A (en) * 1944-05-01 1949-08-09 Baldwin Locomotive Works Overload control system for fluid propelling apparatus
US2525694A (en) * 1946-02-28 1950-10-10 Armstrong Siddeley Motors Ltd Control means for turbo-prop units
US2612226A (en) * 1946-04-04 1952-09-30 Honeywell Regulator Co Engine power control apparatus

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