GB644592A - Improvements in and relating to aircraft superchargers - Google Patents

Improvements in and relating to aircraft superchargers

Info

Publication number
GB644592A
GB644592A GB18233/47A GB1823347A GB644592A GB 644592 A GB644592 A GB 644592A GB 18233/47 A GB18233/47 A GB 18233/47A GB 1823347 A GB1823347 A GB 1823347A GB 644592 A GB644592 A GB 644592A
Authority
GB
United Kingdom
Prior art keywords
tank
oil
pressure
pumps
shaft
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
GB18233/47A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB644592A publication Critical patent/GB644592A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/20—Lubricating arrangements using lubrication pumps
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

644,592. Centrifugal compressors; gas turbines; stuffing-box substitutes. BRITISH THOMSON-HOUSTON CO., Ltd. July 10, 1947, No. 18233. Convention date, April 12, 1943. [Classes 110(i), 110(iii) and 122(v)] [Also in Group XXXIV] In an aircraft supercharger in which lubricant is circulated from a tank to a compressor shaft bearing and back to the tank, means are provided for connecting the tank and a point between the two ends of a packing for the shaft to a region where the pressure is higher than atmospheric. A pump 27 supplies oil to bearings 2, 3, 4 and gears 24, 25 by way of pipes 43, 46, 50, 51, the oil pressure being reduced to the required value by valves 44, 45. To prevent leakage of oil along the shaft, shaft packings 13, 14, 33, 22 are fed at points intermediate their ends with air under pressure from the discharge of the second stage 7 of the compressor by way of passages 60-66. The oil and air collect in sumps 49, 53 and are returned by scavenger pumps 28, 29 to an oil tank 40 by way of pipes 54, 55 and 57, 58. The combined capacity of pumps 28, 29 is greater than that of pump 27. The space in the tank above the oil is put under pressure by means of a connection 70 to the compressor discharge. This connection may be omitted, the pressure then being built up by the scavenger pumps. The pressure in the tank may be maintained at a desired value by a pressure relief valve 71 or by a small orifice. The pumps 27, 28, 29 are directly driven from gear 25, The supercharger is driven by an exhaustgas turbine 15.
GB18233/47A 1943-04-12 1947-07-10 Improvements in and relating to aircraft superchargers Expired GB644592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US644592XA 1943-04-12 1943-04-12

Publications (1)

Publication Number Publication Date
GB644592A true GB644592A (en) 1950-10-11

Family

ID=22056134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18233/47A Expired GB644592A (en) 1943-04-12 1947-07-10 Improvements in and relating to aircraft superchargers

Country Status (1)

Country Link
GB (1) GB644592A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1003511B (en) * 1954-05-20 1957-02-28 Maschf Augsburg Nuernberg Ag Device for cooling the bearings of hot gas turbines, in particular exhaust gas turbochargers of internal combustion engines
DE1135244B (en) * 1959-03-28 1962-08-23 Bmw Triebwerkbau Ges M B H Gas turbine plant, in particular small gas turbine plant
US4576001A (en) * 1983-02-11 1986-03-18 Rolls-Royce Limited Gas turbine engine oil systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1003511B (en) * 1954-05-20 1957-02-28 Maschf Augsburg Nuernberg Ag Device for cooling the bearings of hot gas turbines, in particular exhaust gas turbochargers of internal combustion engines
DE1135244B (en) * 1959-03-28 1962-08-23 Bmw Triebwerkbau Ges M B H Gas turbine plant, in particular small gas turbine plant
US4576001A (en) * 1983-02-11 1986-03-18 Rolls-Royce Limited Gas turbine engine oil systems

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