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IT1025391B - Axial ventilating fan blade attachment system - has root of each blade bolted between wedges in hole in hub - Google Patents

Axial ventilating fan blade attachment system - has root of each blade bolted between wedges in hole in hub

Info

Publication number
IT1025391B
IT1025391B IT2904474A IT2904474A IT1025391B IT 1025391 B IT1025391 B IT 1025391B IT 2904474 A IT2904474 A IT 2904474A IT 2904474 A IT2904474 A IT 2904474A IT 1025391 B IT1025391 B IT 1025391B
Authority
IT
Italy
Prior art keywords
hub
root
blade
blades
wedges
Prior art date
Application number
IT2904474A
Other languages
Italian (it)
Original Assignee
Axial Italiana
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 Axial Italiana filed Critical Axial Italiana
Priority to IT2904474A priority Critical patent/IT1025391B/en
Priority to AR261003A priority patent/AR206444A1/en
Priority to FI752961A priority patent/FI56724C/en
Priority to GB43271/75A priority patent/GB1527623A/en
Priority to NL7512575A priority patent/NL7512575A/en
Priority to CA238,702A priority patent/CA1050946A/en
Priority to BE161315A priority patent/BE834945A/en
Priority to US05/626,067 priority patent/US4053259A/en
Priority to SE7512036A priority patent/SE7512036L/en
Priority to DE19752548372 priority patent/DE2548372A1/en
Priority to ES442180A priority patent/ES442180A1/en
Priority to FR7533089A priority patent/FR2289775A1/en
Priority to NO753630A priority patent/NO146071C/en
Priority to CH1406575A priority patent/CH597521A5/xx
Priority to AT827475A priority patent/AT344305B/en
Priority to AU86164/75A priority patent/AU493706B2/en
Priority to DK487975AA priority patent/DK142629B/en
Priority to YU02756/75A priority patent/YU275675A/en
Priority to JP50130588A priority patent/JPS5199311A/ja
Priority to BR7507206*A priority patent/BR7507206A/en
Priority to ZA00756859A priority patent/ZA756859B/en
Application granted granted Critical
Publication of IT1025391B publication Critical patent/IT1025391B/en

Links

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The axial ventilation fan in which the number of blades can be varied without dismantling the rotor, has the roots of the blades retained in holes in the hub. The hub has a main shroud integral with the annular hub portion, and a shallower shroud portion which bolts onto the main portion, the bolts passing through the roots of the blades, and at the same time retaining a wedge block against each face of each blade root, fitting into a cylindrical hole for each root. The bolts can pass through slotted holes to permit play of the locking elements. In an alternative design, the wedge blocks can be shaped to permit an adjustment of the angle of the blade.
IT2904474A 1974-10-31 1974-10-31 Axial ventilating fan blade attachment system - has root of each blade bolted between wedges in hole in hub IT1025391B (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
IT2904474A IT1025391B (en) 1974-10-31 1974-10-31 Axial ventilating fan blade attachment system - has root of each blade bolted between wedges in hole in hub
AR261003A AR206444A1 (en) 1974-10-31 1975-01-01 IMPROVEMENTS IN FANS WITH VARIABLE ADJUSTMENT BLADES
FI752961A FI56724C (en) 1974-10-31 1975-10-22 AXIALFLAEKT MED FLERA SKILT JUSTERBARA BLAD
GB43271/75A GB1527623A (en) 1974-10-31 1975-10-22 Axial flow fan
CA238,702A CA1050946A (en) 1974-10-31 1975-10-28 Axial fan with adjustable pitch connectable blades
BE161315A BE834945A (en) 1974-10-31 1975-10-28 AXIAL FAN WITH VARIABLE TIMING BLADE
US05/626,067 US4053259A (en) 1974-10-31 1975-10-28 Axial fan adjustable pitch connectable blades
SE7512036A SE7512036L (en) 1974-10-31 1975-10-28 FLEKT
NL7512575A NL7512575A (en) 1974-10-31 1975-10-28 AXIAL FAN WITH ADJUSTABLE RUSH BLADES.
FR7533089A FR2289775A1 (en) 1974-10-31 1975-10-29 AXIAL FAN WITH VARIABLE TIMING BLADE WHEN STOPPED
DE19752548372 DE2548372A1 (en) 1974-10-31 1975-10-29 AXIAL FAN WITH BLADES THAT CAN BE LOCKED AT ANY ADJUSTMENT ANGLE
NO753630A NO146071C (en) 1974-10-31 1975-10-29 FANS
ES442180A ES442180A1 (en) 1974-10-31 1975-10-29 Axial fan adjustable pitch connectable blades
AT827475A AT344305B (en) 1974-10-31 1975-10-30 AXIAL FAN
AU86164/75A AU493706B2 (en) 1975-10-30 An axial flow fan having adjustable pitch connectable blades variable in number
CH1406575A CH597521A5 (en) 1974-10-31 1975-10-30
DK487975AA DK142629B (en) 1974-10-31 1975-10-30 Axial fan wheel comprising blades with adjustable pitch.
YU02756/75A YU275675A (en) 1974-10-31 1975-10-31 Axial ventilator having blades fixable and adjustable in various directions at idle ventilator
JP50130588A JPS5199311A (en) 1974-10-31 1975-10-31
BR7507206*A BR7507206A (en) 1974-10-31 1975-10-31 AXIAL FAN WITH VARIABLE ASSEMBLY PAS, AT REST
ZA00756859A ZA756859B (en) 1974-10-31 1975-10-31 An axial fan having adjustable pitch connectable blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2904474A IT1025391B (en) 1974-10-31 1974-10-31 Axial ventilating fan blade attachment system - has root of each blade bolted between wedges in hole in hub

Publications (1)

Publication Number Publication Date
IT1025391B true IT1025391B (en) 1978-08-10

Family

ID=11225935

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2904474A IT1025391B (en) 1974-10-31 1974-10-31 Axial ventilating fan blade attachment system - has root of each blade bolted between wedges in hole in hub

Country Status (2)

Country Link
IT (1) IT1025391B (en)
ZA (1) ZA756859B (en)

Also Published As

Publication number Publication date
ZA756859B (en) 1976-10-27

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