GB610495A - Improvements in or relating to power plants - Google Patents

Improvements in or relating to power plants

Info

Publication number
GB610495A
GB610495A GB1080746A GB1080746A GB610495A GB 610495 A GB610495 A GB 610495A GB 1080746 A GB1080746 A GB 1080746A GB 1080746 A GB1080746 A GB 1080746A GB 610495 A GB610495 A GB 610495A
Authority
GB
United Kingdom
Prior art keywords
turbine
compressor
propeller
reciprocating engine
speed
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
GB1080746A
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
Priority to GB1080746A priority Critical patent/GB610495A/en
Publication of GB610495A publication Critical patent/GB610495A/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
    • B64D35/04—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors
    • B64D35/06—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors the propellers or rotors being counter-rotating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/12—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled
    • F01K23/14—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled including at least one combustion engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

610,495. Aircraft propelling plant. HOOKER, S. G. April 8, 1946, No. 10807. [Class 4] [Also in Group XXVI] A power plant comprises a gas turbine driving a rotary air compressor delivering air at its delivery pressure to the turbine, a load driven by the turbine, the torque reaction of which is variable to enable the speed of the turbine and the delivery pressure of the compressor to be varied and a reciprocating engine driving a separate load arranged to exhaust to the gas turbine against the back pressure of the compressor delivery. In the plant shown, a gas turbine 17 which drives a rotary air compressor 18 supplying air to the turbine and a variablepitch propeller 14 is combined with a reciprocating engine 10 which exhausts into the pipe 19 connecting the compressor 18 and turbine 17 and drives a separate propeller 11. The speed of the turbine 17 and, indirectly, the pressure at the discharge of the compressor is controlled by varying the pitch of the propeller 14. Since the reciprocating engine 10 exhausts against the back pressure of the compressor delivery, the output from this engine will also be controlled by the pitch of the propeller 14. The pitch of the propeller 14 may be controlled by a variable-datum constant speed unit, and datum speed of which may be adjusted either manually by reference to a gauge indicating the back pressure in the reciprocating engine exhaust or automatically by an altitude responsive device. The arrangement is such that at ground level the front propeller 14 is adjusted to maximum coarse pitch so that the turbine 17 and compressor 18 run at their slowest speed and lowest output. The reciprocating engine 10 then exhausts against a minimum back pressure and develops its maximum power. As the aircraft gains altitude, the propeller 14 is set to a fine pitch, the turbine 17 gains speed and develops more power whilst the increase in back pressure on the reciprocating engine lessens the power developed by it. In a modification, two or more turbine-driven compressors 17, 18 are employed to drive the propeller 14. It may be desirable to supply an over-rich mixture to the reciprocating engine at altitude or to inject additional fuel into the air delivered from the compressor 18.
GB1080746A 1946-04-08 1946-04-08 Improvements in or relating to power plants Expired GB610495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1080746A GB610495A (en) 1946-04-08 1946-04-08 Improvements in or relating to power plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1080746A GB610495A (en) 1946-04-08 1946-04-08 Improvements in or relating to power plants

Publications (1)

Publication Number Publication Date
GB610495A true GB610495A (en) 1948-10-15

Family

ID=9974639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1080746A Expired GB610495A (en) 1946-04-08 1946-04-08 Improvements in or relating to power plants

Country Status (1)

Country Link
GB (1) GB610495A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199795A (en) * 1986-12-03 1988-07-20 Short Brothers Plc Aircraft propulsion
FR3039516A1 (en) * 2015-07-29 2017-02-03 Ifp Energies Now METHOD FOR MANAGING THE POWER OF A PROPULSION SYSTEM, PARTICULARLY IN THE AERONAUTICAL SECTOR, AND ESPECIALLY A SYSTEM COMPRISING TWO DRIVING MACHINES, SUCH AS A TURBOMACHINE AND AN INTERNAL COMBUSTION ENGINE.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199795A (en) * 1986-12-03 1988-07-20 Short Brothers Plc Aircraft propulsion
GB2199795B (en) * 1986-12-03 1990-08-29 Short Brothers Plc Aircraft propulsion
FR3039516A1 (en) * 2015-07-29 2017-02-03 Ifp Energies Now METHOD FOR MANAGING THE POWER OF A PROPULSION SYSTEM, PARTICULARLY IN THE AERONAUTICAL SECTOR, AND ESPECIALLY A SYSTEM COMPRISING TWO DRIVING MACHINES, SUCH AS A TURBOMACHINE AND AN INTERNAL COMBUSTION ENGINE.

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