GB603165A - Improvements relating to rotary impellers and the like - Google Patents

Improvements relating to rotary impellers and the like

Info

Publication number
GB603165A
GB603165A GB13743/45A GB1374345A GB603165A GB 603165 A GB603165 A GB 603165A GB 13743/45 A GB13743/45 A GB 13743/45A GB 1374345 A GB1374345 A GB 1374345A GB 603165 A GB603165 A GB 603165A
Authority
GB
United Kingdom
Prior art keywords
disc
vanes
impeller
impulses
effect
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
GB13743/45A
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.)
Power Jets Research and Development Ltd
Original Assignee
Power Jets Research and Development 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 Power Jets Research and Development Ltd filed Critical Power Jets Research and Development Ltd
Publication of GB603165A publication Critical patent/GB603165A/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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
    • F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
    • F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
    • F01D5/048—Form or construction
    • 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
    • F16F15/22—Compensation of inertia forces
    • F16F15/24—Compensation of inertia forces of crankshaft systems by particular disposition of cranks, pistons, or the like
    • 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

Abstract

603,165. Centrifugal fans. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and VOYSEY, R. B. May 31, 1945, No. 13743. [Class 110 (i)] An impeller is constructed having substantially radially extending vanes each rigidly connected along one edge to a mass comprising hub and disc and adapted to transmit into said disc without substantial change in magnitude or relative change in phase, vibration exciting impulses externally applied to the vanes, whereby-at any given instant the effect on the disc of-any one group of external regularly applied and equal vibration-exciting impulses acting for example on the tips of the vanes is wholly or partly counterbalanced by the combined effect of the other impulses on said disc. One method of carrying this into effect is described and consists in making the root thickness of each vane 2 at its outlet edge 6 at least 75 per cent of the root thickness of the typical vane section, which section lies in a normal plane through the blade tip Y, said plane making an angle with a transverse plane of substantially 55 degrees. By a suitable choice of the number of impeller and diffuser vanes the vector resultant of the impulses transmitted from the impeller blades to the disc can be made to approximate to zero. A method of determining the resonant frequency of impeller vanes is also described.
GB13743/45A 1945-05-31 1945-05-31 Improvements relating to rotary impellers and the like Expired GB603165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB276509X 1945-05-31

Publications (1)

Publication Number Publication Date
GB603165A true GB603165A (en) 1948-06-10

Family

ID=10263027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13743/45A Expired GB603165A (en) 1945-05-31 1945-05-31 Improvements relating to rotary impellers and the like

Country Status (4)

Country Link
CH (1) CH276509A (en)
FR (1) FR927548A (en)
GB (1) GB603165A (en)
NL (1) NL65549C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153066A1 (en) * 1984-02-06 1985-08-28 A/S Kongsberg Väpenfabrikk Dual-entry centrifugal compressor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114354411B (en) * 2021-12-28 2023-11-21 重庆长安汽车股份有限公司 Device and method for testing weld fatigue capability of rear tie rod of automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153066A1 (en) * 1984-02-06 1985-08-28 A/S Kongsberg Väpenfabrikk Dual-entry centrifugal compressor

Also Published As

Publication number Publication date
CH276509A (en) 1951-07-15
FR927548A (en) 1947-10-31
NL65549C (en)

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