EP0155073A3 - Controllable pitch fans - Google Patents

Controllable pitch fans Download PDF

Info

Publication number
EP0155073A3
EP0155073A3 EP85300531A EP85300531A EP0155073A3 EP 0155073 A3 EP0155073 A3 EP 0155073A3 EP 85300531 A EP85300531 A EP 85300531A EP 85300531 A EP85300531 A EP 85300531A EP 0155073 A3 EP0155073 A3 EP 0155073A3
Authority
EP
European Patent Office
Prior art keywords
cylinder
blades
combination
hub
pitch
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.)
Withdrawn
Application number
EP85300531A
Other languages
German (de)
French (fr)
Other versions
EP0155073A2 (en
Inventor
Harry E. Heyl
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.)
Peabody ABC Corp
Original Assignee
Peabody ABC Corp
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 Peabody ABC Corp filed Critical Peabody ABC Corp
Publication of EP0155073A2 publication Critical patent/EP0155073A2/en
Publication of EP0155073A3 publication Critical patent/EP0155073A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The pitch of the blades (22) of a fan is adjusted by a pneumatic piston and cylinder combination (48, 50) which rotates with the hub (20) of the fan. The cylinder element (50) is reciprocable axially with respect to the hub and is connected to the blades by a cam groove (92) in the cylinder element, and a plurality of cam followers (98) engaged in the groove for translating axial movement of the cylinder in one or other direction into pivotal movement of the blades to adjust the pitch of the blades. Pneumatic pressure is applied to the piston and cylinder combination to reciprocate the cylinder element (50) via a rotary union (82) which accommodates rotation of the combination.
EP85300531A 1984-03-13 1985-01-25 Controllable pitch fans Withdrawn EP0155073A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58916684A 1984-03-13 1984-03-13
US589166 1984-03-13

Publications (2)

Publication Number Publication Date
EP0155073A2 EP0155073A2 (en) 1985-09-18
EP0155073A3 true EP0155073A3 (en) 1986-12-17

Family

ID=24356887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85300531A Withdrawn EP0155073A3 (en) 1984-03-13 1985-01-25 Controllable pitch fans

Country Status (6)

Country Link
EP (1) EP0155073A3 (en)
JP (1) JPS60209698A (en)
AU (1) AU3697484A (en)
DK (1) DK111585A (en)
NO (1) NO850940L (en)
ZA (1) ZA849335B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4446622A1 (en) * 1994-12-24 1996-06-27 Klein Schanzlin & Becker Ag Variable pitch propeller with adjusting mechanism arranged in it
FR2908451B1 (en) * 2006-11-09 2009-03-20 Snecma Sa TURBOPROPULSEUR COMPRISING AN ADJUSTABLE ORIENTATION BLADE ASSEMBLY
CN110056520B (en) * 2019-03-13 2021-02-05 咸阳职业技术学院 Two-way automatic cleaning and air-changing device based on electronic technology
CN111911435A (en) * 2020-08-27 2020-11-10 吴建林 Axial flow fan with adjustable motor direct-drive movable blades or adjustable motor shutdown

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285127A (en) * 1961-03-30 1962-02-16 Dingler Werke Ag Blower fins oleo-hydraulic shift device
FR1585397A (en) * 1968-11-28 1970-01-16
US3603698A (en) * 1969-11-19 1971-09-07 Nordisk Ventilator Axial flow fan wheel
DE2546161A1 (en) * 1975-10-15 1977-04-21 Turbo Lufttechnik Gmbh AXIAL FAN
GB2077855A (en) * 1980-06-12 1981-12-23 Howden James & Co Ltd Reversible Pitch Bladed Rotor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285127A (en) * 1961-03-30 1962-02-16 Dingler Werke Ag Blower fins oleo-hydraulic shift device
FR1585397A (en) * 1968-11-28 1970-01-16
US3603698A (en) * 1969-11-19 1971-09-07 Nordisk Ventilator Axial flow fan wheel
DE2546161A1 (en) * 1975-10-15 1977-04-21 Turbo Lufttechnik Gmbh AXIAL FAN
GB2077855A (en) * 1980-06-12 1981-12-23 Howden James & Co Ltd Reversible Pitch Bladed Rotor

Also Published As

Publication number Publication date
AU3697484A (en) 1985-09-19
EP0155073A2 (en) 1985-09-18
DK111585A (en) 1985-09-14
NO850940L (en) 1985-09-16
DK111585D0 (en) 1985-03-12
JPS60209698A (en) 1985-10-22
ZA849335B (en) 1985-07-31

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Legal Events

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Effective date: 19880112

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HEYL, HARRY E.