US2853140A - Resiliently mounted impeller blades - Google Patents

Resiliently mounted impeller blades Download PDF

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Publication number
US2853140A
US2853140A US556915A US55691556A US2853140A US 2853140 A US2853140 A US 2853140A US 556915 A US556915 A US 556915A US 55691556 A US55691556 A US 55691556A US 2853140 A US2853140 A US 2853140A
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United States
Prior art keywords
hub
blades
portions
groove
radial
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Expired - Lifetime
Application number
US556915A
Inventor
Sr Claude A Forth
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BROOKSIDE PRODUCTS Co Inc
BROOKSIDE PRODUCTS COMPANY Inc
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BROOKSIDE PRODUCTS Co Inc
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Priority to US556915A priority Critical patent/US2853140A/en
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Publication of US2853140A publication Critical patent/US2853140A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/03—Sheet metal

Definitions

  • a still further object of the invention is to provide a multi-bladed impeller of the class described above which will be inexpensive to manufacture, quiet in use, and simple to maintain.
  • Figure 1 is a front elevation of the impeller embodying the present invention with parts broken away.
  • Figure 2 is a side elevation of the invention.
  • Figure 3 is a fragmentary enlarged front elevation of the hub structure of the impeller.
  • Figure 4 is an enlarged detailed vertical cross-section taken along the line 4-4 of Figure 1, looking in the direction of the arrows.
  • the reference numeral indicates generally a blade member comprising a central hub portion 11, and a plurality of equispaced radially extending blades 12, 13 and 14.
  • the hub portion 11 is provided with a circular embossed groove 15 which is positioned axially of the hub 11 and has extending outwardly therefrom a radial groove 16 which is formed similarly to the circular groove 15 and extends into the blade 12.
  • a radial groove 17 also communicates with the groove 15 and extends into the blade 13, while a groove 18 is similarly connected to the groove 15 and extends into the blade 14.
  • each of the radial grooves 16, 17 and 18 are short grooves 19, 20 and 21, respectively, which communicate with the circular groove 15 and extend to the edge of the hub 11.
  • the hub 11 of the blade member 10 is provided with a central bore 22, the purpose of which will be explained.
  • Each of the blades 12, 13 and 14 are provided with an outwardly projecting car 23 having an orifice 24 formed therein.
  • a second blade carrying member, generally indicated at 25, is likewise provided with a hub 26 having a central bore 27 therein.
  • a plurality of blades 28, 29 and 30 extend outwardly from the hub 26 in a radial direction and are provided at their outer edges with ears 31 having orifices 32 formed therein.
  • a circular groove 33 is formed axially of the hub 26 of the same size as the circular groove 15 and is formed so as to interfit the groove 15 when the blade carrying members 10 and are brought into overlying position as illustrated in Figure 4.
  • the blade 28 has a radial groove 34 extending radially inwardly thereon to communicate with the groove 33.
  • the blade 29 has a radially extending groove 35 communicating with the groove 33, while the blade has a groove 36 formed therein to extend to the groove 33.
  • the hub 26 is provided with short grooves 37, 38 and 39 extending radially outwardly so as to align with the radial grooves 16, 17 and 18, respectively, on the blade carrying member 10.
  • the short grooves 19, 20 and 21 on the hub 11 overlie the inner ends of the grooves 34, 35 and 36 on the blade carrying member 25 so as to interfit as illustrated in Figure 4.
  • the formation of the hubs 11 and 26 are such that no radial movement can occur between the blade carrying members 10 and 25.
  • a hub 40 having a bore 41 extending axially therethrough is provided with a shoulder 42 and a reduced portion 43 extending therefrom.
  • An annular washer 44 is positioned adjacent the shoulder 42 and has a rubber mounting block 45 positioned thereagainst and against the reduced portion 43.
  • a tubular extension 46 extends outwardly from the block 45 and forms a cylindrical mounting portion for the blade carrying members 10 and 25.
  • a resilient washer 47 is positioned against the outer face of the blade carrying members 10 and 25 over the tubular extension 46.
  • a washer 48 is positioned against the outer face of the resilient washer 47 and is adapted to clamp the assembly together.
  • the outer end of the hub 48 is swaged at 49 to engage the washer 48 holding the assembled blades onto the hub 40.
  • a ring 50 having a cylindrical flange 51 formed thereon is secured to each of the ears 23 and 31 by means of attaching elements 52.
  • the ring 50 is discontinuous, having a gap at 53 between the ends thereof.
  • the hub 40 is mounted to the shaft of a motor or to any power driven shaft desired with the blades 12, 13, 14, 28, 29 and 3-0 extending transversely of the air flow direction.
  • the hubs 11 and 26 of the blade carrying members 10 and 25 are resiliently mounted on the rubber block 45 and are clamped thereon with the resilient washer 47 to provide a vibrationless mounting therefor.
  • the blades 12, 13, 14, 28, 29 and 30 are sloped or twisted about a radial center to produce an air impeller effect.
  • An impeller comprising a hub portion, a plurality of blades extending radially from said hub portion, a second hub portion, a plurality of blades extending radially from said second hub portion, means connecting the outer end edges of each of said blades, and interfitting radially and annularly embossed portions on said hub portions to hold said hub portions against radial and circumferential displacement with respect to each other.
  • a device as claimed in claim 8 wherein said means connecting the outer end edges of said blades comprises a discontinuous L-shaped ring and fastening elements securing each of said blades to said ring.
  • An impeller comprising a hub adapted to receive a drive shaft, a pair of confronting fan hub portions, means mounting said fan hub portions on said hub, interfitting radially and annularly embossed portions on said hub portions holding said hub portions against radial and circumferential displacement with respect to each other, a plurality of blades extending radially from each of said fan hub portions, a discontinuous ring of L-shaped cross section and means securing the outer end edge of each blade to said ring.
  • An impeller comprising a hub adapted to receive a drive shaft, said hub having a shoulder adjacent one end thereof and a reduced portion extending from said shoulder to said end of said hub, a Washer positioned on said reduced portion and engaging said shoulder, a hollow cylindrical resilient mounting block mounted on said reduced portion of said hub, a flange portion formed integrally on said resilient mounting block engaging against said washer, a pair of fan hub portions mounted on said mounting block, a resilient washer surrounding said mounting block, said fan hub portions being positioned between said resilient washer and said flange of said mounting block, means mounted on the end of said hub bearing against said resilient Washer and holding said fan hub portions together, a plurality of blades extending radially from each of said fan hub portions, each of said fan hub portions having interfitting radially and annularly embossed portions thereon to hold said fan hub portions against radial and circumferential displacement with respect to each other, and a discontinuous ring of L-shaped cross section, the outer edge of each of said blades being secured to said ring.
  • An impeller comprising a plurality of hub portions, a plurality of blades extending radially from each of said hub portions, means connecting the outer end edges of each of said blades and interfitting radially and annularly embossed portions on said hub portions to hold said hub portions against radial and circumferential displacement with respect to each other.
  • An impeller comprising a hub portion, a plurality of blades extending radially from said hub portion, a second hub portion, a plurality of blades extending radially from said second hub portion and interfitting radially and annularly embossed portions on said hub portions to hold said hub portions against radial and circumferential displacement with respect to each other.
  • An impeller gorn prising a plurality of hub portions, a plurality o'f'blades extending radially from each of said hub portions, apd' interfitting radially and annularly embossed p'oftions; on said hub portions to hold said hub portions aga i 'n t radial and circumferential displacement with respect '-.to each other.

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

Description

Sept. 23, 1958 c. A. FORTH, SR
RESILIENTLY MOUNTED IMPELLER BLADES Filed Jan. 3, 1956 rZ/L, 5r.
ATTORNEYS United States atent Ofifice 2,853,140 Patented Sept. 23, 1958 RESILIENTLY MOUNTED IlVIPELLER BLADES Claude A. Forth, Sr., Brookside Products acorporation Application January 3, 1956, Serial No. 556,915 7 Claims. (Cl. 170-16053) McCordsville, Ind., assignor to Company, Inc., McCordsville, Ind,
' described above which will restrain the members against radial movement with relation to a vibrationless hub.
A still further object of the invention is to provide a multi-bladed impeller of the class described above which will be inexpensive to manufacture, quiet in use, and simple to maintain.
Other objects and advantages will become apparent from the following specification when considered in the light of the attached drawings, in which:
Figure 1 is a front elevation of the impeller embodying the present invention with parts broken away.
Figure 2 is a side elevation of the invention.
Figure 3 is a fragmentary enlarged front elevation of the hub structure of the impeller.
Figure 4 is an enlarged detailed vertical cross-section taken along the line 4-4 of Figure 1, looking in the direction of the arrows.
Referring now to the drawings in detail wherein like reference numerals indicate like parts throughout the several figures, the reference numeral indicates generally a blade member comprising a central hub portion 11, and a plurality of equispaced radially extending blades 12, 13 and 14. The hub portion 11 is provided with a circular embossed groove 15 which is positioned axially of the hub 11 and has extending outwardly therefrom a radial groove 16 which is formed similarly to the circular groove 15 and extends into the blade 12. A radial groove 17 also communicates with the groove 15 and extends into the blade 13, while a groove 18 is similarly connected to the groove 15 and extends into the blade 14. I
Centrally positioned between each of the radial grooves 16, 17 and 18 are short grooves 19, 20 and 21, respectively, which communicate with the circular groove 15 and extend to the edge of the hub 11. The hub 11 of the blade member 10 is provided with a central bore 22, the purpose of which will be explained.
Each of the blades 12, 13 and 14 are provided with an outwardly projecting car 23 having an orifice 24 formed therein. A second blade carrying member, generally indicated at 25, is likewise provided with a hub 26 having a central bore 27 therein. A plurality of blades 28, 29 and 30 extend outwardly from the hub 26 in a radial direction and are provided at their outer edges with ears 31 having orifices 32 formed therein.
A circular groove 33 is formed axially of the hub 26 of the same size as the circular groove 15 and is formed so as to interfit the groove 15 when the blade carrying members 10 and are brought into overlying position as illustrated in Figure 4.
The blade 28 has a radial groove 34 extending radially inwardly thereon to communicate with the groove 33. The blade 29 has a radially extending groove 35 communicating with the groove 33, while the blade has a groove 36 formed therein to extend to the groove 33. Midway between the radial grooves 34, and 36, the hub 26 is provided with short grooves 37, 38 and 39 extending radially outwardly so as to align with the radial grooves 16, 17 and 18, respectively, on the blade carrying member 10. The short grooves 19, 20 and 21 on the hub 11 overlie the inner ends of the grooves 34, 35 and 36 on the blade carrying member 25 so as to interfit as illustrated in Figure 4. Obviously, the formation of the hubs 11 and 26 are such that no radial movement can occur between the blade carrying members 10 and 25.
A hub 40 having a bore 41 extending axially therethrough is provided with a shoulder 42 and a reduced portion 43 extending therefrom. An annular washer 44 is positioned adjacent the shoulder 42 and has a rubber mounting block 45 positioned thereagainst and against the reduced portion 43. A tubular extension 46 extends outwardly from the block 45 and forms a cylindrical mounting portion for the blade carrying members 10 and 25.
A resilient washer 47 is positioned against the outer face of the blade carrying members 10 and 25 over the tubular extension 46. A washer 48 is positioned against the outer face of the resilient washer 47 and is adapted to clamp the assembly together. The outer end of the hub 48 is swaged at 49 to engage the washer 48 holding the assembled blades onto the hub 40.
A ring 50 having a cylindrical flange 51 formed thereon is secured to each of the ears 23 and 31 by means of attaching elements 52. The ring 50 is discontinuous, having a gap at 53 between the ends thereof.
In the use and operation of the invention, the hub 40 is mounted to the shaft of a motor or to any power driven shaft desired with the blades 12, 13, 14, 28, 29 and 3-0 extending transversely of the air flow direction. The hubs 11 and 26 of the blade carrying members 10 and 25 are resiliently mounted on the rubber block 45 and are clamped thereon with the resilient washer 47 to provide a vibrationless mounting therefor. Obviously, the blades 12, 13, 14, 28, 29 and 30 are sloped or twisted about a radial center to produce an air impeller effect.
With the structure described above, it is obvious that the use of rivets and other positive fastening elements between the hubs 11 and 26 are completely eliminated along with their attendant failures.
Having thus described the preferred embodiment of the invention, it should be understood that numerous modifications and structural adaptations may be resorted to Without departing from the scope of the appended claims.
What is claimed is:
1. An impeller comprising a hub portion, a plurality of blades extending radially from said hub portion, a second hub portion, a plurality of blades extending radially from said second hub portion, means connecting the outer end edges of each of said blades, and interfitting radially and annularly embossed portions on said hub portions to hold said hub portions against radial and circumferential displacement with respect to each other.
2. A device as claimed in claim 8 wherein said means connecting the outer end edges of said blades comprises a discontinuous L-shaped ring and fastening elements securing each of said blades to said ring.
3. An impeller comprising a hub adapted to receive a drive shaft, a pair of confronting fan hub portions, means mounting said fan hub portions on said hub, interfitting radially and annularly embossed portions on said hub portions holding said hub portions against radial and circumferential displacement with respect to each other, a plurality of blades extending radially from each of said fan hub portions, a discontinuous ring of L-shaped cross section and means securing the outer end edge of each blade to said ring.
4. An impeller comprising a hub adapted to receive a drive shaft, said hub having a shoulder adjacent one end thereof and a reduced portion extending from said shoulder to said end of said hub, a Washer positioned on said reduced portion and engaging said shoulder, a hollow cylindrical resilient mounting block mounted on said reduced portion of said hub, a flange portion formed integrally on said resilient mounting block engaging against said washer, a pair of fan hub portions mounted on said mounting block, a resilient washer surrounding said mounting block, said fan hub portions being positioned between said resilient washer and said flange of said mounting block, means mounted on the end of said hub bearing against said resilient Washer and holding said fan hub portions together, a plurality of blades extending radially from each of said fan hub portions, each of said fan hub portions having interfitting radially and annularly embossed portions thereon to hold said fan hub portions against radial and circumferential displacement with respect to each other, and a discontinuous ring of L-shaped cross section, the outer edge of each of said blades being secured to said ring.
5. An impeller comprising a plurality of hub portions, a plurality of blades extending radially from each of said hub portions, means connecting the outer end edges of each of said blades and interfitting radially and annularly embossed portions on said hub portions to hold said hub portions against radial and circumferential displacement with respect to each other.
6. An impeller comprising a hub portion, a plurality of blades extending radially from said hub portion, a second hub portion, a plurality of blades extending radially from said second hub portion and interfitting radially and annularly embossed portions on said hub portions to hold said hub portions against radial and circumferential displacement with respect to each other.
7. An impeller gornprising a plurality of hub portions, a plurality o'f'blades extending radially from each of said hub portions, apd' interfitting radially and annularly embossed p'oftions; on said hub portions to hold said hub portions aga i 'n t radial and circumferential displacement with respect '-.to each other.
References Cited in the file of this patent
US556915A 1956-01-03 1956-01-03 Resiliently mounted impeller blades Expired - Lifetime US2853140A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005497A (en) * 1957-07-22 1961-10-24 Torrington Mfg Co Fan blade and hub assembly
US3111173A (en) * 1960-06-30 1963-11-19 Torrington Mfg Co Fan with slinger ring
US3201857A (en) * 1963-03-21 1965-08-24 Torrington Mfg Co Method of making fan with slinger ring
US3890061A (en) * 1974-01-02 1975-06-17 Torin Corp Resilient hub assembly
US4009970A (en) * 1975-01-15 1977-03-01 Forth Jr Claude A Resilient fan hub
JPS5391410A (en) * 1977-01-19 1978-08-11 Wallace Murray Corp Thin plate fan assenmbly
US4174924A (en) * 1975-10-21 1979-11-20 Wallace Murray Corporation Sheet metal fan assembly
US4245957A (en) * 1978-11-17 1981-01-20 General Motors Corporation Bladed fan assembly and compression loaded connector
FR2569769A1 (en) * 1984-08-30 1986-03-07 Daimler Benz Ag AIR DELIVERY DEVICE FOR THE RADIATOR OF WATER COOLED INTERNAL COMBUSTION ENGINES
EP0364969A1 (en) * 1988-10-18 1990-04-25 Shin Caterpillar Mitsubishi Ltd. Knocked-down fan for engine cooling and other applications
EP0373322A1 (en) * 1988-12-13 1990-06-20 Shin Caterpillar Mitsubishi Ltd. Knocked-down fan for engine cooling and other applications
EP0524863A1 (en) * 1991-07-26 1993-01-27 Renault Vehicules Industriels Fan rotor
EP0536662A1 (en) * 1991-10-11 1993-04-14 Siemens Electric Limited High efficiency, low noise, axial flow fan
WO1995022850A1 (en) * 1994-02-18 1995-08-24 Daniel Industries, Inc. Laminated rotor assembly
US20020197162A1 (en) * 2000-04-21 2002-12-26 Revcor, Inc. Fan blade
US20030223875A1 (en) * 2000-04-21 2003-12-04 Hext Richard G. Fan blade
US20040101407A1 (en) * 2002-11-27 2004-05-27 Pennington Donald R. Fan assembly and method
US20130034453A1 (en) * 2010-06-14 2013-02-07 Panasonic Corporation Fan motor, on-vehicle air conditioner using the fan motor, and method for assembling fan motor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US535172A (en) * 1895-03-05 turn-ell
US1056226A (en) * 1911-12-18 1913-03-18 William Sparks Rotary fan.
US1121335A (en) * 1913-05-26 1914-12-15 Charles H J Dilg Rotary fan.
US2023111A (en) * 1934-07-31 1935-12-03 Westinghouse Electric & Mfg Co Silent fan

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US535172A (en) * 1895-03-05 turn-ell
US1056226A (en) * 1911-12-18 1913-03-18 William Sparks Rotary fan.
US1121335A (en) * 1913-05-26 1914-12-15 Charles H J Dilg Rotary fan.
US2023111A (en) * 1934-07-31 1935-12-03 Westinghouse Electric & Mfg Co Silent fan

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005497A (en) * 1957-07-22 1961-10-24 Torrington Mfg Co Fan blade and hub assembly
US3111173A (en) * 1960-06-30 1963-11-19 Torrington Mfg Co Fan with slinger ring
US3201857A (en) * 1963-03-21 1965-08-24 Torrington Mfg Co Method of making fan with slinger ring
US3890061A (en) * 1974-01-02 1975-06-17 Torin Corp Resilient hub assembly
US4009970A (en) * 1975-01-15 1977-03-01 Forth Jr Claude A Resilient fan hub
US4174924A (en) * 1975-10-21 1979-11-20 Wallace Murray Corporation Sheet metal fan assembly
JPS5391410A (en) * 1977-01-19 1978-08-11 Wallace Murray Corp Thin plate fan assenmbly
JPS5936117B2 (en) * 1977-01-19 1984-09-01 ウオ−レス・ムレイ・コ−ポレ−シヨン thin plate fan assembly
US4245957A (en) * 1978-11-17 1981-01-20 General Motors Corporation Bladed fan assembly and compression loaded connector
FR2569769A1 (en) * 1984-08-30 1986-03-07 Daimler Benz Ag AIR DELIVERY DEVICE FOR THE RADIATOR OF WATER COOLED INTERNAL COMBUSTION ENGINES
US4655686A (en) * 1984-08-30 1987-04-07 Daimler-Benz Aktiengesellschaft Air conveying device on a radiator for water-cooled internal combustion engines
EP0364969A1 (en) * 1988-10-18 1990-04-25 Shin Caterpillar Mitsubishi Ltd. Knocked-down fan for engine cooling and other applications
EP0373322A1 (en) * 1988-12-13 1990-06-20 Shin Caterpillar Mitsubishi Ltd. Knocked-down fan for engine cooling and other applications
FR2679606A1 (en) * 1991-07-26 1993-01-29 Renault Vehicules Ind FAN PROPELLER.
EP0524863A1 (en) * 1991-07-26 1993-01-27 Renault Vehicules Industriels Fan rotor
EP0536662A1 (en) * 1991-10-11 1993-04-14 Siemens Electric Limited High efficiency, low noise, axial flow fan
WO1995022850A1 (en) * 1994-02-18 1995-08-24 Daniel Industries, Inc. Laminated rotor assembly
US5594288A (en) * 1994-02-18 1997-01-14 Daniel Industries, Inc. Laminated rotor assembly
US6712584B2 (en) 2000-04-21 2004-03-30 Revcor, Inc. Fan blade
US20030223875A1 (en) * 2000-04-21 2003-12-04 Hext Richard G. Fan blade
US20020197162A1 (en) * 2000-04-21 2002-12-26 Revcor, Inc. Fan blade
US6814545B2 (en) 2000-04-21 2004-11-09 Revcor, Inc. Fan blade
US20050123404A1 (en) * 2000-04-21 2005-06-09 Revcor, Inc. Fan blade
US20040101407A1 (en) * 2002-11-27 2004-05-27 Pennington Donald R. Fan assembly and method
US6942457B2 (en) 2002-11-27 2005-09-13 Revcor, Inc. Fan assembly and method
US20060088418A1 (en) * 2002-11-27 2006-04-27 Revcor, Inc. Fan assembly and method
US20130034453A1 (en) * 2010-06-14 2013-02-07 Panasonic Corporation Fan motor, on-vehicle air conditioner using the fan motor, and method for assembling fan motor
US9214840B2 (en) * 2010-06-14 2015-12-15 Panasonic Intellectual Property Management Co., Ltd. Fan motor, on-vehicle air conditioner using the fan motor, and method for assembling fan motor

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