GB575663A - Improvements in or relating to variable-pitch propellers for aircraft and blowers - Google Patents

Improvements in or relating to variable-pitch propellers for aircraft and blowers

Info

Publication number
GB575663A
GB575663A GB5882/44A GB588244A GB575663A GB 575663 A GB575663 A GB 575663A GB 5882/44 A GB5882/44 A GB 5882/44A GB 588244 A GB588244 A GB 588244A GB 575663 A GB575663 A GB 575663A
Authority
GB
United Kingdom
Prior art keywords
main blade
auxiliary flap
aircraft
blowers
march
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
GB5882/44A
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.)
Sulzer Escher Wyss GmbH
Original Assignee
Escher Wyss Maschinenfabriken AG
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 Escher Wyss Maschinenfabriken AG filed Critical Escher Wyss Maschinenfabriken AG
Publication of GB575663A publication Critical patent/GB575663A/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
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/32—Blade pitch-changing mechanisms mechanical
    • B64C11/34—Blade pitch-changing mechanisms mechanical automatic
    • B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades
    • 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
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • 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
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • 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

575,663. Propellers and impellers. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. March 30, 1944, No. 5882. Convention date, March 31, 1943. [Class 114] In a variable pitch propeller for aircraft or impeller for axial blowers, an auxiliary flap 3 is adjusted automatically on adjustment of the main blade 2 so that, for large and small pitch angles of the main blade, the auxiliary flap is, respectively, close to, and spaced away from, the hub end of the main blade. A lateral arm 5 on the main blade projects into a rectangular slot 4 in the auxiliary flap and its concave lower surface 11 engages a ball-bearing 10. An extension 6 of the auxiliary flap carries a roller 9 which engages a guide race 7 in an annular body 8 on the propeller or impeller hub 1.
GB5882/44A 1943-03-31 1944-03-30 Improvements in or relating to variable-pitch propellers for aircraft and blowers Expired GB575663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH575663X 1943-03-31

Publications (1)

Publication Number Publication Date
GB575663A true GB575663A (en) 1946-02-27

Family

ID=4521180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5882/44A Expired GB575663A (en) 1943-03-31 1944-03-30 Improvements in or relating to variable-pitch propellers for aircraft and blowers

Country Status (1)

Country Link
GB (1) GB575663A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746604A1 (en) * 2012-12-21 2014-06-25 SKF Aerospace France Rolling bearing intended to undergo a surface fatigue phenomenon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746604A1 (en) * 2012-12-21 2014-06-25 SKF Aerospace France Rolling bearing intended to undergo a surface fatigue phenomenon
FR3000148A1 (en) * 2012-12-21 2014-06-27 Skf Aerospace France BEARING FOR A SURFACE FATIGUE PHENOMENON

Similar Documents

Publication Publication Date Title
GB913930A (en) Blade for axial-flow fans producing an acceleration in a meridian direction
GB575663A (en) Improvements in or relating to variable-pitch propellers for aircraft and blowers
GB814564A (en) Improvements in or relating to blade wheels for centrifugal fans
GB588112A (en) Improvements in variable-pitch airscrews
GB564928A (en) Improvements in and relating to variable-pitch screw-propellers
GB601160A (en) Improvements in or relating to propellers, fans and the like
GB1300182A (en) Improvements relating to ship's propeller arrangements
GB975892A (en) Turbine rotors
GB678647A (en) Improvements in or relating to variable pitch propellers
GB538731A (en) Improvement in marine and aero propulsion
GB556910A (en) Improvements in or relating to propeller spinners
GB637531A (en) Improvements in and relating to a variable pitch propeller with multiple tandem blades for aircraft
GB568533A (en) Improved operating gear for adjustable propeller blades
GB737625A (en) Improvements in screw propellers
GB625154A (en) Improvements in screw propellers
GB519267A (en) Improvements in aeronautical propeller blade mountings
GB554454A (en) Improvements in and relating to propellers for aircraft
GB565262A (en) Improvements in impeller blades of screw fans
GB596971A (en) Improvements in automatic variable pitch propeller
GB640852A (en) Improvements relating to variable pitch propellers
GB683012A (en) Improvements in or relating to screw propellers
GB485041A (en) Improvements in and relating to screw fans
GB562863A (en) Improvements in and relating to variable pitch screw propellers
GB580947A (en) Improvements in or relating to ship's propellers with adjustable blades
GB548371A (en) Improvements in and relating to blades for propellors or screws