US1241166A - Noiseless fan. - Google Patents

Noiseless fan. Download PDF

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Publication number
US1241166A
US1241166A US14433617A US14433617A US1241166A US 1241166 A US1241166 A US 1241166A US 14433617 A US14433617 A US 14433617A US 14433617 A US14433617 A US 14433617A US 1241166 A US1241166 A US 1241166A
Authority
US
United States
Prior art keywords
fan
sheet metal
blade
noiseless
edge
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 - Lifetime
Application number
US14433617A
Inventor
Carl G Swenson
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.)
OAKES Co
Original Assignee
OAKES Co
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 OAKES Co filed Critical OAKES Co
Priority to US14433617A priority Critical patent/US1241166A/en
Application granted granted Critical
Publication of US1241166A publication Critical patent/US1241166A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing
    • 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
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • WITNESSES v l/VI/E/VTOR QSwe/ wn
  • Figure 1 is an elevation of a four-bladed fan embodying my invention
  • Fig. 2 is an under plan view on a somewhat larger scale.
  • the fan shown has a plurality "of blades 10 mounted on a central spider 11. These blades are preferably made of sheet metal, as is clear from Fig. 2, and are conveniently fastened to the spider by rivets.
  • the blades 10 are skewed as a whole, and are preferably concave on the air'pushing side, so as to give the air a gradual acceleration.
  • each blade 10 is folded back on itself conveniently on the pushing face to form a lap 13, which at its rear edge lies close to the body of the blade, as is clear from Fig. 2.
  • a blunt, rounded advancing edge 14 is formed on each fan blade, and by reason of this blunt, rounded advancing edge it is found that the noise usually incident to fans is practically wholly eliminated.
  • said'fan blade comprising a single piece of sheet metal which.
  • a sheet metal fan blade having a concave air-pushing face, said fan blade comprising a single piece of sheet metal'which at the rear edge is of but a single thickness but is folded back on itself at the advancing edge to form a blunt rounded fold.
  • a sheet metal fan blade said fan blade comprising a single piece of sheet metal which at the rear edge is of but a single thickness but is folded back on itself on the pushing face at the advancing edge.
  • a sheet metal fan blade havin a concave air-pushing face, said fan bla e comprising a single piece of sheet metal which at the rear edge is of but a single thickness but is folded back on itself on said concave face at the advancing edge to form a blunt rounded fold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Description

c. e. SWENSON.
NOISELESS, FAN.
APPLICATION FILED JAN.25, 1911.
1 ,241 1 669. I Patented Sept. 25, 1917.
FJ Q i.
WITNESSES: v l/VI/E/VTOR QSwe/ wn,
v S i To all whom it mag) concern:
s rrn ms. Winn.
,CARL G. SWENSON, 0F INDIANAPOLIS, INDIANA, ASSIGNOR TO THE OAKES COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.
NOISELESS FAN.
Be it known that I, CARL G. SwENsoN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful N oiseless Fan, of which the following is a specification.
It is the object of my present invention to produce a noiseless fan. v
The accompanying drawing illustrates my invention. Figure 1 is an elevation of a four-bladed fan embodying my invention; and Fig. 2 is an under plan view on a somewhat larger scale.
The fan shown has a plurality "of blades 10 mounted on a central spider 11. These blades are preferably made of sheet metal, as is clear from Fig. 2, and are conveniently fastened to the spider by rivets. The blades 10 are skewed as a whole, and are preferably concave on the air'pushing side, so as to give the air a gradual acceleration. At its advancing edge, each blade 10 is folded back on itself conveniently on the pushing face to form a lap 13, which at its rear edge lies close to the body of the blade, as is clear from Fig. 2. In this way, a blunt, rounded advancing edge 14: is formed on each fan blade, and by reason of this blunt, rounded advancing edge it is found that the noise usually incident to fans is practically wholly eliminated.
I claim as my invention:
l. A sheet metal fan blade having a con Specification of Letters Patent.
cave air-pushing face, said'fan bladecomprising a single piece of sheet metal which.
at the rear edge is of but a single thickness but is folded back on itself at the advancing edge.
2. A sheet metal fan blade having a concave air-pushing face, said fan blade comprising a single piece of sheet metal'which at the rear edge is of but a single thickness but is folded back on itself at the advancing edge to form a blunt rounded fold.
3. -A sheet metal fan-blade havinga concave air-pushing face, said fan blade comprising a single piece of sheet metal which at the rear edge is of but a single thickness but is folded back on itself on the pushing face at the advancing edge.
4. A sheet metal fan blade, said fan blade comprising a single piece of sheet metal which at the rear edge is of but a single thickness but is folded back on itself on the pushing face at the advancing edge.
5. A sheet metal fan blade havin a concave air-pushing face, said fan bla e comprising a single piece of sheet metal which at the rear edge is of but a single thickness but is folded back on itself on said concave face at the advancing edge to form a blunt rounded fold. 1
In witness whereof, I have hereuntoset my. hand at Indianapolis, Indiana, this 19th day of January, A. D. one thousand nine hundred and seventeen.
CARL G. SWENSON.
ratentea'sept. 25.1mm
I Application filed January 25, 1917. Serial No. 144,336.
US14433617A 1917-01-25 1917-01-25 Noiseless fan. Expired - Lifetime US1241166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14433617A US1241166A (en) 1917-01-25 1917-01-25 Noiseless fan.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14433617A US1241166A (en) 1917-01-25 1917-01-25 Noiseless fan.

Publications (1)

Publication Number Publication Date
US1241166A true US1241166A (en) 1917-09-25

Family

ID=3308973

Family Applications (1)

Application Number Title Priority Date Filing Date
US14433617A Expired - Lifetime US1241166A (en) 1917-01-25 1917-01-25 Noiseless fan.

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US (1) US1241166A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406760A (en) * 1967-09-18 1968-10-22 Wallace Murray Corp Flexible blade fan
US3853428A (en) * 1972-01-27 1974-12-10 Bolt Beranek & Newman Foil structures with reduced sound generation
US4046488A (en) * 1975-11-07 1977-09-06 Wickham Robert G Radiator cooling fan
USD246794S (en) * 1976-04-02 1977-12-27 Flex-A-Lite Corporation Fan for internal combustion engines
USD770756S1 (en) * 2014-04-07 2016-11-08 Zon Umbrella with solar panels
USD850093S1 (en) 2013-09-24 2019-06-04 Zon Umbrella with solar panels

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406760A (en) * 1967-09-18 1968-10-22 Wallace Murray Corp Flexible blade fan
US3853428A (en) * 1972-01-27 1974-12-10 Bolt Beranek & Newman Foil structures with reduced sound generation
US4046488A (en) * 1975-11-07 1977-09-06 Wickham Robert G Radiator cooling fan
USD246794S (en) * 1976-04-02 1977-12-27 Flex-A-Lite Corporation Fan for internal combustion engines
USD850093S1 (en) 2013-09-24 2019-06-04 Zon Umbrella with solar panels
USD875384S1 (en) 2013-09-24 2020-02-18 Zon Umbrella with solar panels
USD899068S1 (en) 2013-09-24 2020-10-20 Zon Umbrella with solar panels
USD925903S1 (en) 2013-09-24 2021-07-27 Zon, Inc. Umbrella with solar panels
USD770756S1 (en) * 2014-04-07 2016-11-08 Zon Umbrella with solar panels
USD770757S1 (en) * 2014-04-07 2016-11-08 Zon Umbrella with solar panels
USD848140S1 (en) 2014-04-07 2019-05-14 Zon Umbrella with solar panels
USD907355S1 (en) 2014-04-07 2021-01-12 Zon Umbrella with solar panels

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