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GB358789A - Improvements in driving mechanism for aircraft propellers - Google Patents

Improvements in driving mechanism for aircraft propellers

Info

Publication number
GB358789A
GB358789A GB36318/30A GB3631830A GB358789A GB 358789 A GB358789 A GB 358789A GB 36318/30 A GB36318/30 A GB 36318/30A GB 3631830 A GB3631830 A GB 3631830A GB 358789 A GB358789 A GB 358789A
Authority
GB
United Kingdom
Prior art keywords
torque
propeller
engine
clutch
plate
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
GB36318/30A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB358789A publication Critical patent/GB358789A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
    • B64D35/02—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions specially adapted for specific power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
    • F16D3/66—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being metallic, e.g. in the form of coils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/123—Wound springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/13121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by clutch arrangements, e.g. for activation; integrated with clutch members, e.g. pressure member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

358,789. Shock absorbing transmission. JUNKERS, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. Dec. 2, 1930, No. 36318. Convention date, Dec. 14, 1929. [Class 80 (ii).] Mechanism for transmission of energy from engines or motors with periodically fluctuating torque, to aircraft propellers, includes an elastic member interposed in the revolving transmission mechanism and so dimensioned as to prevent resonance of the specific frequency of the revolving parts during fluctuations in the engine torque in the range of higher engine speeds, and a clutch in the transmission mechanism, in series with the elastic member, said clutch having a slip torquespeed characteristic which follows approximately the same law as the torque-absorbed-speed characteristic of the propeller. In one form, the elastic member takes the form of a long shaft 2, Figs. 1 and 2, of low natural period of oscillation. The clutch consists of cross-arms 11 mounted rigidly on the engine shaft 10 and carrying radially displaceable bobs 12 exposed to the action of centrifugal force and which are provided with frictional facings 13 bearing against a clutch plate 14 mounted on the shaft 2. Weak springs 15 produce an auxiliary initial pressure between the friction surfaces. In a modification, the propeller is mounted on the engine shaft 20, Figs. 3 and 4, which carries centrifugal bobs 23 having frictional facings 27. The drive is transmitted from the engine to the propeller through the bobs 23 engaging a torque plate 28 and through the intermediary of springs 33 situated between projections on the torque plate 28 and a plate 32 secured to the propeller.
GB36318/30A 1929-12-14 1930-12-02 Improvements in driving mechanism for aircraft propellers Expired GB358789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE358789X 1929-12-14

Publications (1)

Publication Number Publication Date
GB358789A true GB358789A (en) 1931-10-15

Family

ID=6290931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36318/30A Expired GB358789A (en) 1929-12-14 1930-12-02 Improvements in driving mechanism for aircraft propellers

Country Status (1)

Country Link
GB (1) GB358789A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398684A (en) * 1981-04-08 1983-08-16 Redro, Inc. Connecting apparatus for a powerplant
DE4406662A1 (en) * 1994-03-01 1995-09-07 Alfred Mueller Propeller drive clutch for gliders
EP2390184A1 (en) 2010-05-31 2011-11-30 Eurocopter Aircraft powerplant, aircraft and method for using a piston engine in a powerplant provided with a conventional transmission unit
CN106553761A (en) * 2015-09-30 2017-04-05 Brp传动系有限两合公司 Aircraft propeller drive system
CN113911377A (en) * 2021-11-12 2022-01-11 北京航空航天大学 An oil powered ducted aircraft power transmission device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398684A (en) * 1981-04-08 1983-08-16 Redro, Inc. Connecting apparatus for a powerplant
DE4406662A1 (en) * 1994-03-01 1995-09-07 Alfred Mueller Propeller drive clutch for gliders
EP2390184A1 (en) 2010-05-31 2011-11-30 Eurocopter Aircraft powerplant, aircraft and method for using a piston engine in a powerplant provided with a conventional transmission unit
FR2960518A1 (en) * 2010-05-31 2011-12-02 Eurocopter France AIRCRAFT ENGINE INSTALLATION, AIRCRAFT AND METHOD FOR USING A PISTON ENGINE IN A POWER PLANT EQUIPPED WITH A CONVENTIONAL TRANSMISSION BOX
US8882027B2 (en) 2010-05-31 2014-11-11 Airbus Helicopters Aircraft power plant, an aircraft, and a method of using a piston engine in a power plant having a conventional gearbox
CN106553761A (en) * 2015-09-30 2017-04-05 Brp传动系有限两合公司 Aircraft propeller drive system
US20180016021A1 (en) * 2015-09-30 2018-01-18 Brp-Rotax Gmbh & Co. Kg Aircraft propeller drive system
US10780989B2 (en) * 2015-09-30 2020-09-22 Brp-Rotax Gmbh & Co. Kg Aircraft propeller drive system
CN113911377A (en) * 2021-11-12 2022-01-11 北京航空航天大学 An oil powered ducted aircraft power transmission device

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