GB642957A - Improvements in or relating to the controls of engines driving variable-pitch propellers for aeroplanes - Google Patents

Improvements in or relating to the controls of engines driving variable-pitch propellers for aeroplanes

Info

Publication number
GB642957A
GB642957A GB2424147A GB2424147A GB642957A GB 642957 A GB642957 A GB 642957A GB 2424147 A GB2424147 A GB 2424147A GB 2424147 A GB2424147 A GB 2424147A GB 642957 A GB642957 A GB 642957A
Authority
GB
United Kingdom
Prior art keywords
pitch
governor
landing
making
braking
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
GB2424147A
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.)
Rotol Ltd
Original Assignee
Rotol 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 Rotol Ltd filed Critical Rotol Ltd
Priority to GB2424147A priority Critical patent/GB642957A/en
Publication of GB642957A publication Critical patent/GB642957A/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
    • B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
    • B64C11/42—Blade pitch-changing mechanisms fluid, e.g. hydraulic non-automatic

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

642,957. Variable-pitch propellers for braking aircraft. ROTOL, Ltd., MORRIS, E. H., DANVERS, E., and GODDEN, T. E. Sept. 2, 1947, No. 24241. [Classes 4 and 114] The reversing of a propeller for braking is carried out only after the landing wheels have touched the ground. The pitch is varied by the piston 7 which is normally limited to the positive pitch range by stop 28. When making a landing the throttle lever 10 is pulled back from position 15 to slow running position 14, altering the setting of the governor. The lever when moved through the gate 16 closes switch 19, 20, and when the landing wheels touch ground switch 38 is closed, making the circuit operative. Solenoids 27, 25 and 26 then operate the corresponding valves to reverse the connections between the pump and cylinder 6, to render the governor ineffective temporarily, and to increase the output pressure of the pump respectively. This removes in succession stops 28 and 29 and subsequently restores governor control in the reversed pitch range, each of these steps being controlled automatically by plate 33 connected to the propeller blades closing contacts 34, 35, 36 and 37 at various pitch angles.
GB2424147A 1947-09-02 1947-09-02 Improvements in or relating to the controls of engines driving variable-pitch propellers for aeroplanes Expired GB642957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2424147A GB642957A (en) 1947-09-02 1947-09-02 Improvements in or relating to the controls of engines driving variable-pitch propellers for aeroplanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2424147A GB642957A (en) 1947-09-02 1947-09-02 Improvements in or relating to the controls of engines driving variable-pitch propellers for aeroplanes

Publications (1)

Publication Number Publication Date
GB642957A true GB642957A (en) 1950-09-13

Family

ID=10208648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2424147A Expired GB642957A (en) 1947-09-02 1947-09-02 Improvements in or relating to the controls of engines driving variable-pitch propellers for aeroplanes

Country Status (1)

Country Link
GB (1) GB642957A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840169A (en) * 1952-10-14 1958-06-24 United Aircraft Corp Propeller control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840169A (en) * 1952-10-14 1958-06-24 United Aircraft Corp Propeller control system

Similar Documents

Publication Publication Date Title
GB642957A (en) Improvements in or relating to the controls of engines driving variable-pitch propellers for aeroplanes
GB1174345A (en) Combined Propeller Pitch Lock and Low Pitch Stop System.
GB516720A (en) Improvements relating to the control and operation of wing flaps of aircraft
GB615757A (en) Improvements relating to variable pitch propellers
GB677672A (en) Improved reciprocable fluid-control valve
GB704809A (en) Improvements in or relating to variable pitch propeller systems
GB672953A (en) Improvements in or relating to hydraulic, variable-pitch propellers
GB664780A (en) Improvements in and relating to the control of variable-pitch propellers
GB649671A (en) Improvements in engine controls for aircraft
GB701504A (en) Improvements in or relating to fully power-operated airplane controls
GB611780A (en) Improved control mechanism for variable pitch propellers
GB724654A (en) Improved propeller pitch control
GB614951A (en) Improvements in or relating to variable pitch propellers
GB597908A (en) Improvements in speed governors for variable pitch screw-propellers especially for aircraft
GB657792A (en) Improvements in or relating to variable-pitch feathering propellers for multi-engine installations
GB611941A (en) Aircraft such as are powered by internal-combustion turbine units
GB738624A (en) Improvements in or relating to propeller control systems
GB581326A (en) Improvements in control of variable pitch propellers for braking purposes
GB560629A (en) Constant speed propeller mechanism
GB655345A (en) Improvements in or relating to hydraulic reversing gear for propellers
GB603487A (en) A control means for a constant-speed, variable-pitch propellor driven by an internal-combustion turbine unit
GB781952A (en) Control apparatus for aircraft propulsion units embodying variable pitch constant speed air screws
GB598185A (en) Improvements in or relating to variable jet-nozzles for jet propulsion units
GB668877A (en) Control of variable pitch propellers driven by gas turbine engines
GB652691A (en) Improvements in and relating to control mechanisms for adjustable pitch propellers