US1919250A - Propeller wheel for fans - Google Patents

Propeller wheel for fans Download PDF

Info

Publication number
US1919250A
US1919250A US573316A US57331631A US1919250A US 1919250 A US1919250 A US 1919250A US 573316 A US573316 A US 573316A US 57331631 A US57331631 A US 57331631A US 1919250 A US1919250 A US 1919250A
Authority
US
United States
Prior art keywords
air
wheel
rotation
outwardly
fans
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
US573316A
Inventor
Alex H Olson
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.)
JOSEPH W DROLL
Original Assignee
JOSEPH W DROLL
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 JOSEPH W DROLL filed Critical JOSEPH W DROLL
Priority to US573316A priority Critical patent/US1919250A/en
Application granted granted Critical
Publication of US1919250A publication Critical patent/US1919250A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325Rotors specially for elastic fluids for axial flow pumps for axial flow fans

Definitions

  • the invention relates to propeller wheels for fans.
  • the front .face of the intermediate member17, which propeller wheel for fans which will operate the plane of rotation of t wheel, and its ont er portion is curved .rearwardly axially to provide a surface which will propel the air obliquel frontwardl and outwardly in gradual increasing e ee from the axis of the whee
  • the front edge 17 and the back edge 17 b of the intermediate member 17 are provide a pro ller wheel which is provided with blades w 'ch will efliciently spread the air over a widely flared zone to distribute it over a large portion of the room, so that separate deflectors for this urpose can be dispensed with.
  • Another ject is to provide a 35 of sheet metal.
  • Fig. 1 is a front elevation of a fan embodying the invention.
  • Fig. 2 is a side elevation.
  • Fig. 3 is a. front view of 25 one of the propeller blades.
  • Fig. 4 is a rear end view of one of the blades.
  • Fig. 5 is a plan of one of the blades.
  • Fi 6 is a section on the line 6-6 of Fig. 3. tion on the line 7-7 of 3.
  • the invention is exemp ed in a propeller wheel secured to the shaft 10 of an electric motor 11 which may be of any suitable construction.
  • the wheel comprises a series of ig. 7 is a secfour blades 14 which are preferabl formed its face is inclined transversely to the plane of rotation as shown in Fig. 7, to propel the air forwardly of the wheel while the latter is rotated.
  • the front face of member 15 is also inclined frontwardl as shown in Fig. 6,
  • the tip mem r 16, wlich rde as merging with t e intermediate portion on the 'line 19-19 of Fig. 5, is extended totrail the member 17 in the rotation of the wheel, is curved longitudinally of the axis and the same as the outer end of the member 17.
  • the tip is tangential to render it efiective in re pelling the air outwardly from the axis of the wheel. Its edges 16 and 16 terminate in a int-16. I The tip constitutes a sweep-back ormation to act suvely on the air which has a tendency to slide over thefront face of the blade.
  • the inner members 15 by reason oftheir transverseinclination and their frontward and outward inclination propel air frontwardly and sufieiently towards the axis to prevent the formation of a dead-air s ace in the central zone in front'o'f the wheel.
  • e intermediate members 17, b reason of being tangential and their meg rearward slo propel-the air obliquely fmntwardly an outwardly from the axis pvely increasing degrees to distribute the air through a wide conoidal zone. .By reason of e sweep-back of the portion, the air slipping along their faces will be effectively propelled by these members.
  • the tips which trial and intermediate ortions in the rotation of the blades render them more effective in propelling the air in the outer portion of the conoidal zone of air propelled by the wheel and prevent the formation of eddy currents which would lessen the efiiciency of the intermediate members of the blades.
  • the wheel in its entirety propels a substantially conoidal 90 zone of air as indicatedin Fig. 2', with substantially uniform pressure throughout the entire zone and thus effects the desired wide distribution of the air under moderate pressure over a wide area in a room.
  • a wheel for propelling air comprising a hub adapted for connection to a drive shaft, and a plurality of blades connected to and projecting outwardly from the hub, each of said blades consisting of an outwardly flared, transversely inclined inner part extending outwardly from the hub and having the leading and trailing edges thereof curved rearwardly with respect to the direction of rotation of the wheel in a substantially spiral manner, an intermediate part extending outwardly and backwardly from the outer portion of the inner part and rearwardly with respect to the direction of rotation of the wheel and shaped so as to propel another portion of the propelled air forwardly and outwardly in' gradually increasing degree vfrom the axis of rotation, and a tapered tip extending backwardly from the rearmost portion of the intermediate part substantially longitudinally withrespect to the axis of rotation of the wheel constituting a sweep-back formation whereby the air sliding off the rearmost part of the intermediate part is Ideflected outwardly during rotation of the v;
  • a. wheel for propelling air comprising a hub adapted for connection to a drive shaft, and a plurality of'blades connected to and projecting outwardly from the hub, each of said blades consisting of an outwardly flared, transversely inclined inner part extending outwardly and slightly forwardly from the hub so as to defi eat a portion of the propelled air inwardly towards the axis of rotation and prevent the formation of a dead-air space in front of the center of the wheel and having the leading and trailing edges thereof curved rearwardly with respect to the direction of rotation of the wheel in a substantially spiral manner, an intcrmedi ate part extending outwardly and backwardly from the outer portion of the inner part and rearwardly with respect to the direction of rotation of the wheel and shaped so as to propel another portion of the propelled air forwardly and outwardly in.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

July 25, 1933. A. H. oLsoN PROPELLER WHEEL FOR FANS Filed Nov. 6. 1931 @IWM Patented July 25, 1933 UNITED STATES PATENT OFFICE;
n. or-son, or iwmsmx, rumors. assrenon. ro sosnrn 'w. nnorr. or
cmcaso, rumors 2302mm 'wnnar. ron rans Application filed Iovenber .a, 19:1. semi 10. 57 8.8 18.
The invention relates to propeller wheels for fans.
It isv now common practice to provide sta- .tionary deflectors in front of the propeller U wheels of ventilating fans to deflect the air projected axiall by-the fan obliquely outward to spread t e air over a wide area- The pnmaryobject of the inventionis to front of the center. of the fan. The front edge'15 and the rear edge 15 of member 15 are helical or curved or slo 'd rearwardly with respect to a diametric line.
may for descri tive purposes be regarded as connecting wit the member 15 on the line 181 8 of Fig. 3, is tan ntial. or inclined to I The front .face of the intermediate member17, which propeller wheel for fans which will operate the plane of rotation of t wheel, and its ont er portion is curved .rearwardly axially to provide a surface which will propel the air obliquel frontwardl and outwardly in gradual increasing e ee from the axis of the whee The front edge 17 and the back edge 17 b of the intermediate member 17 are provide a pro ller wheel which is provided with blades w 'ch will efliciently spread the air over a widely flared zone to distribute it over a large portion of the room, so that separate deflectors for this urpose can be dispensed with. Another ject is to provide a 35 of sheet metal.
efliciently. Other objects will appear from the description. I
The invention consists in the several novel features hereinafter set forth and more par- 573 ticularly defined by claims at the conclusion hereof.
In the drawing: Fig. 1 is a front elevation of a fan embodying the invention. Fig. 2 is a side elevation. Fig. 3 is a. front view of 25 one of the propeller blades. Fig. 4 is a rear end view of one of the blades. Fig. 5 is a plan of one of the blades. Fi 6 is a section on the line 6-6 of Fig. 3. tion on the line 7-7 of 3.
The invention is exemp ed in a propeller wheel secured to the shaft 10 of an electric motor 11 which may be of any suitable construction. The wheel comprises a series of ig. 7 is a secfour blades 14 which are preferabl formed its face is inclined transversely to the plane of rotation as shown in Fig. 7, to propel the air forwardly of the wheel while the latter is rotated. The front face of member 15 is also inclined frontwardl as shown in Fig. 6,
to propel the air slight y toward the center ofthefanandprdventadea'd-airspacein gressively in the rotation of the wheel.
may or descri tive purposes be re also helical or curved backwardly relatively to a diametric line and in the plane of-rotationto cause the blade to act on the air gr}? air tends to slide radially outward and backwardly over the front face of the inner portion of the member 17, and this formation causes the air to be effectively ropelled obliquely forward. The tip mem r 16, wlich rde as merging with t e intermediate portion on the 'line 19-19 of Fig. 5, is extended totrail the member 17 in the rotation of the wheel, is curved longitudinally of the axis and the same as the outer end of the member 17. The tip is tangential to render it efiective in re pelling the air outwardly from the axis of the wheel. Its edges 16 and 16 terminate in a int-16. I The tip constitutes a sweep-back ormation to act suvely on the air which has a tendency to slide over thefront face of the blade.
In operation the inner members 15, by reason oftheir transverseinclination and their frontward and outward inclination propel air frontwardly and sufieiently towards the axis to prevent the formation of a dead-air s ace in the central zone in front'o'f the wheel.
e intermediate members 17, b reason of being tangential and their meg rearward slo propel-the air obliquely fmntwardly an outwardly from the axis pvely increasing degrees to distribute the air through a wide conoidal zone. .By reason of e sweep-back of the portion, the air slipping along their faces will be effectively propelled by these members. The tips which trial and intermediate ortions in the rotation of the blades render them more effective in propelling the air in the outer portion of the conoidal zone of air propelled by the wheel and prevent the formation of eddy currents which would lessen the efiiciency of the intermediate members of the blades. The wheel in its entirety propels a substantially conoidal 90 zone of air as indicatedin Fig. 2', with substantially uniform pressure throughout the entire zone and thus effects the desired wide distribution of the air under moderate pressure over a wide area in a room.
The invention exemplifies an air propeller- Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:
1. As a new article of manufacture, a wheel for propelling air comprising a hub adapted for connection to a drive shaft, and a plurality of blades connected to and projecting outwardly from the hub, each of said blades consisting of an outwardly flared, transversely inclined inner part extending outwardly from the hub and having the leading and trailing edges thereof curved rearwardly with respect to the direction of rotation of the wheel in a substantially spiral manner, an intermediate part extending outwardly and backwardly from the outer portion of the inner part and rearwardly with respect to the direction of rotation of the wheel and shaped so as to propel another portion of the propelled air forwardly and outwardly in' gradually increasing degree vfrom the axis of rotation, and a tapered tip extending backwardly from the rearmost portion of the intermediate part substantially longitudinally withrespect to the axis of rotation of the wheel constituting a sweep-back formation whereby the air sliding off the rearmost part of the intermediate part is Ideflected outwardly during rotation of the v; ee
2. As a new article of manufacture, a. wheel for propelling air comprising a hub adapted for connection to a drive shaft, and a plurality of'blades connected to and projecting outwardly from the hub, each of said blades consisting of an outwardly flared, transversely inclined inner part extending outwardly and slightly forwardly from the hub so as to defi eat a portion of the propelled air inwardly towards the axis of rotation and prevent the formation of a dead-air space in front of the center of the wheel and having the leading and trailing edges thereof curved rearwardly with respect to the direction of rotation of the wheel in a substantially spiral manner, an intcrmedi ate part extending outwardly and backwardly from the outer portion of the inner part and rearwardly with respect to the direction of rotation of the wheel and shaped so as to propel another portion of the propelled air forwardly and outwardly in. gradually increasing degree from the axis of rotation, and a tapered tip extending backwardly from the rearmost portion of the intermediate part substantially longitudinally .with respect to the axis of rotation of the wheel constituting a sweep-back formation whereby the air sliding off the rearmost part of the intermediate part is deflected outwardly during rotation of the wheel.
ALExH. OLSON,
US573316A 1931-11-06 1931-11-06 Propeller wheel for fans Expired - Lifetime US1919250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US573316A US1919250A (en) 1931-11-06 1931-11-06 Propeller wheel for fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US573316A US1919250A (en) 1931-11-06 1931-11-06 Propeller wheel for fans

Publications (1)

Publication Number Publication Date
US1919250A true US1919250A (en) 1933-07-25

Family

ID=24291478

Family Applications (1)

Application Number Title Priority Date Filing Date
US573316A Expired - Lifetime US1919250A (en) 1931-11-06 1931-11-06 Propeller wheel for fans

Country Status (1)

Country Link
US (1) US1919250A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505641A (en) * 1980-03-07 1985-03-19 Aisin Seiki Kabushiki Kaisha Cooling fan for internal combustion engine
US6702552B1 (en) * 1999-11-25 2004-03-09 Jayden David Harman Impeller having blade(s) conforming to the golden section of a logarithmic curve
US20040238163A1 (en) * 2002-01-03 2004-12-02 Harman Jayden David Heat exchanger
US20040244853A1 (en) * 2002-01-03 2004-12-09 Harman Jayden David Fluid flow controller
US20050269458A1 (en) * 2002-01-03 2005-12-08 Harman Jayden D Vortex ring generator
US20060102239A1 (en) * 2003-07-02 2006-05-18 Pax Scientific, Inc. Fluid flow control device
US20060263201A1 (en) * 2003-11-04 2006-11-23 Harman Jayden D Fluid circulation system
US20070003414A1 (en) * 2004-01-30 2007-01-04 Pax Scientific, Inc. Housing for a centrifugal fan, pump, or turbine
US20070025846A1 (en) * 2004-01-30 2007-02-01 Pax Scientific, Inc. Vortical flow rotor
US20080093860A1 (en) * 2004-11-30 2008-04-24 Masahiko Suzuki Propeller And Horizontal-Axis Wind Turbine
US20090308472A1 (en) * 2008-06-15 2009-12-17 Jayden David Harman Swirl Inducer
US8328522B2 (en) 2006-09-29 2012-12-11 Pax Scientific, Inc. Axial flow fan

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505641A (en) * 1980-03-07 1985-03-19 Aisin Seiki Kabushiki Kaisha Cooling fan for internal combustion engine
US6702552B1 (en) * 1999-11-25 2004-03-09 Jayden David Harman Impeller having blade(s) conforming to the golden section of a logarithmic curve
US7814967B2 (en) 2002-01-03 2010-10-19 New Pax, Inc. Heat exchanger
US20110011463A1 (en) * 2002-01-03 2011-01-20 Jayden David Harman Reducing drag on a mobile body
US20050269458A1 (en) * 2002-01-03 2005-12-08 Harman Jayden D Vortex ring generator
US8733497B2 (en) 2002-01-03 2014-05-27 Pax Scientific, Inc. Fluid flow controller
US7096934B2 (en) 2002-01-03 2006-08-29 Pax Scientific, Inc. Heat exchanger
US20060249283A1 (en) * 2002-01-03 2006-11-09 Pax Scientific, Inc. Heat exchanger
US8381870B2 (en) 2002-01-03 2013-02-26 Pax Scientific, Inc. Fluid flow controller
US7980271B2 (en) 2002-01-03 2011-07-19 Caitin, Inc. Fluid flow controller
US7934686B2 (en) 2002-01-03 2011-05-03 Caitin, Inc. Reducing drag on a mobile body
US7287580B2 (en) 2002-01-03 2007-10-30 Pax Scientific, Inc. Heat exchanger
US20080023188A1 (en) * 2002-01-03 2008-01-31 Harman Jayden D Heat Exchanger
US20080041474A1 (en) * 2002-01-03 2008-02-21 Harman Jayden D Fluid Flow Controller
US20040244853A1 (en) * 2002-01-03 2004-12-09 Harman Jayden David Fluid flow controller
US7644804B2 (en) 2002-01-03 2010-01-12 Pax Streamline, Inc. Sound attenuator
US20080265101A1 (en) * 2002-01-03 2008-10-30 Pax Scientific, Inc. Vortex ring generator
US20040238163A1 (en) * 2002-01-03 2004-12-02 Harman Jayden David Heat exchanger
US7766279B2 (en) 2002-01-03 2010-08-03 NewPax, Inc. Vortex ring generator
US7673834B2 (en) 2002-01-03 2010-03-09 Pax Streamline, Inc. Vortex ring generator
US20060102239A1 (en) * 2003-07-02 2006-05-18 Pax Scientific, Inc. Fluid flow control device
US7802583B2 (en) 2003-07-02 2010-09-28 New Pax, Inc. Fluid flow control device
US8631827B2 (en) 2003-07-02 2014-01-21 Pax Scientific, Inc. Fluid flow control device
US20060263201A1 (en) * 2003-11-04 2006-11-23 Harman Jayden D Fluid circulation system
US7862302B2 (en) 2003-11-04 2011-01-04 Pax Scientific, Inc. Fluid circulation system
US20070003414A1 (en) * 2004-01-30 2007-01-04 Pax Scientific, Inc. Housing for a centrifugal fan, pump, or turbine
US20090035132A1 (en) * 2004-01-30 2009-02-05 Pax Streamline, Inc. Housing for a centrifugal fan, pump, or turbine
US7416385B2 (en) 2004-01-30 2008-08-26 Pax Streamline, Inc. Housing for a centrifugal fan, pump, or turbine
US7832984B2 (en) 2004-01-30 2010-11-16 Caitin, Inc. Housing for a centrifugal fan, pump, or turbine
US20070025846A1 (en) * 2004-01-30 2007-02-01 Pax Scientific, Inc. Vortical flow rotor
US7488151B2 (en) 2004-01-30 2009-02-10 Pax Streamline, Inc. Vortical flow rotor
US20080093860A1 (en) * 2004-11-30 2008-04-24 Masahiko Suzuki Propeller And Horizontal-Axis Wind Turbine
US8128338B2 (en) * 2004-11-30 2012-03-06 Kabushiki Kaisha Bellsion Propeller and horizontal-axis wind turbine
US8328522B2 (en) 2006-09-29 2012-12-11 Pax Scientific, Inc. Axial flow fan
US20090308472A1 (en) * 2008-06-15 2009-12-17 Jayden David Harman Swirl Inducer

Similar Documents

Publication Publication Date Title
US1919250A (en) Propeller wheel for fans
US2269287A (en) Fan
US1041913A (en) Aerial propeller.
US4364712A (en) Cross flow cooling fan
US3070061A (en) Progressive thrust propeller
US2098107A (en) Fan with rubber blades
US2532371A (en) Feathering reversible propeller
US20210147091A1 (en) Ultra-wide-chord propeller
US1620875A (en) Fan wheel
US2872988A (en) Air translating apparatus
US1867809A (en) Propeller assembly for airships
US2415380A (en) Propeller blade
US1977072A (en) Aircraft propeller
US2359466A (en) Air impeller
US1834888A (en) Propeller
US1706608A (en) Fan
US997587A (en) Propeller.
US2129939A (en) Propeller for aircraft
US1234070A (en) Screw-propeller.
US2283068A (en) Propeller
US1012308A (en) Screw-propeller.
US2442441A (en) Air deflector
US1135829A (en) Propeller.
US2128780A (en) Airplane propeller
US1349981A (en) Marine propeller