GB704856A - Improvements relating to air compressors - Google Patents

Improvements relating to air compressors

Info

Publication number
GB704856A
GB704856A GB10101/50A GB1010150A GB704856A GB 704856 A GB704856 A GB 704856A GB 10101/50 A GB10101/50 A GB 10101/50A GB 1010150 A GB1010150 A GB 1010150A GB 704856 A GB704856 A GB 704856A
Authority
GB
United Kingdom
Prior art keywords
blades
compressor
axial
speed
whirl
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
GB10101/50A
Inventor
Geoffrey Light Wilde
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB10101/50A priority Critical patent/GB704856A/en
Publication of GB704856A publication Critical patent/GB704856A/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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

704,856. Centrifugal and axial-flow compressors ; gas turbine plant. ROLLS-ROYCE, Ltd. July 23, 1951 [April 24, 1950], No. 10101/50. Classes 110 (1) and 110 (3) In a compressor comprising a multi-stage axial-flow section followed by, and drivingly connected to, a centrifugal section, stator blading at the inlet end of the axial-flow section is adjustable to increase the whirl imposed on the air in the lower portion of the speed range. In a gas turbine engine, the compressor comprises an axial-flow impeller 18 followed by a centrifugal impeller 20, both mounted on a shaft 15 connected to the turbine rotor. Guide blades 22 and 23a and diffuser blades 24 are pivoted, preferably simultaneously, by means of hydraulic rams 29, 30 and 37 respectively so that on acceleration of the engine, the whirl imposed on the air by the blades 22 is decreased, the whirl imposed by the blades 23a is increased, and the areas of the diffuser channels between the blades 24 are decreased. In each set of blades, the blades are interconnected for simultaneous adjustment, as by means of radius arms 26 engaging slots in a rotatable ring 27, and pinions 35 meshing with a toothed ring 36. The rams may be similar to those described in Specification 704,849, in which the ram pistons withdraw into the ram cylinders as the rotational speed of the compressor increases. The control may be in accordance with factors which vary with the rotational speed, such as the compression ratio across the whole or a part of the compressor, or the corrected rotational speed (corrected, that is, for variations of compressor intake temperature as by including in the hydraulic governor system an orifice area controlled in accordance with the intake temperature). Instead of being continuous over a range of speed, the blade adjustment may be effected at a preselected speed.
GB10101/50A 1950-04-24 1950-04-24 Improvements relating to air compressors Expired GB704856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10101/50A GB704856A (en) 1950-04-24 1950-04-24 Improvements relating to air compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10101/50A GB704856A (en) 1950-04-24 1950-04-24 Improvements relating to air compressors

Publications (1)

Publication Number Publication Date
GB704856A true GB704856A (en) 1954-03-03

Family

ID=9961516

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10101/50A Expired GB704856A (en) 1950-04-24 1950-04-24 Improvements relating to air compressors

Country Status (1)

Country Link
GB (1) GB704856A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066488A (en) * 1959-11-04 1962-12-04 Bendix Corp Power output control for a gas turbine engine
US4398865A (en) * 1978-11-10 1983-08-16 Garkusha Anatoly V Exhaust pipe of turbine
GB2119862A (en) * 1982-05-06 1983-11-23 Gen Electric Variable stator vane (VSV) closed loop control system of a compressor
CN102434463A (en) * 2010-08-31 2012-05-02 诺沃皮尼奥内有限公司 Turbomachine with mixed-flow stage and method
WO2016039918A1 (en) * 2014-09-12 2016-03-17 General Electric Company Axi-centrifugal compressor with variable outlet guide vanes
US20170276070A1 (en) * 2016-03-24 2017-09-28 Honeywell International Inc. Axi-centrifugal compressor
US10794272B2 (en) 2018-02-19 2020-10-06 General Electric Company Axial and centrifugal compressor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066488A (en) * 1959-11-04 1962-12-04 Bendix Corp Power output control for a gas turbine engine
US4398865A (en) * 1978-11-10 1983-08-16 Garkusha Anatoly V Exhaust pipe of turbine
GB2119862A (en) * 1982-05-06 1983-11-23 Gen Electric Variable stator vane (VSV) closed loop control system of a compressor
CN102434463B (en) * 2010-08-31 2017-11-07 诺沃皮尼奥内有限公司 Turbine and method with mixed-flow stage
US9458863B2 (en) 2010-08-31 2016-10-04 Nuovo Pignone S.P.A. Turbomachine with mixed-flow stage and method
CN102434463A (en) * 2010-08-31 2012-05-02 诺沃皮尼奥内有限公司 Turbomachine with mixed-flow stage and method
WO2016039918A1 (en) * 2014-09-12 2016-03-17 General Electric Company Axi-centrifugal compressor with variable outlet guide vanes
CN106687666A (en) * 2014-09-12 2017-05-17 通用电气公司 Axi-centrifugal compressor with variable outlet guide vanes
JP2017527733A (en) * 2014-09-12 2017-09-21 ゼネラル・エレクトリック・カンパニイ Axial flow-centrifugal compressor with variable output guide vanes
US10704563B2 (en) 2014-09-12 2020-07-07 General Electric Company Axi-centrifugal compressor with variable outlet guide vanes
US11448235B2 (en) 2014-09-12 2022-09-20 General Electric Company Axi-centrifugal compressor with variable outlet guide vanes
US20170276070A1 (en) * 2016-03-24 2017-09-28 Honeywell International Inc. Axi-centrifugal compressor
US10794272B2 (en) 2018-02-19 2020-10-06 General Electric Company Axial and centrifugal compressor

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