US2459097A - Pump for evaporative air coolers or the like - Google Patents

Pump for evaporative air coolers or the like Download PDF

Info

Publication number
US2459097A
US2459097A US739710A US73971047A US2459097A US 2459097 A US2459097 A US 2459097A US 739710 A US739710 A US 739710A US 73971047 A US73971047 A US 73971047A US 2459097 A US2459097 A US 2459097A
Authority
US
United States
Prior art keywords
housing
pump
impeller
fan
base
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
US739710A
Inventor
Gene C Rudd
Cornelius B Wright
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US739710A priority Critical patent/US2459097A/en
Application granted granted Critical
Publication of US2459097A publication Critical patent/US2459097A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven

Definitions

  • This invention relates to pumps such as those used in evaporative cooling units.
  • An object of the invention is to provide, in a pump of the referred to class, a construction and arrangement which is more efficient than corresponding pumps now in use.
  • a particular object of the invention is to provide an efficient combination fan and cover which will prevent water from dropping on the electric motor to prevent shorting.
  • Another object of the invention is to provide in a pump having a centrifugal impeller, means whereby the friction load of the fluid is materially reduced with reference to pumps of the same general type.
  • a further object of the invention is to provide, in addition to the foregoing, fan cooling means which draws air upwardly and outwardly over the motor so as to cool and prevent fluid from accumulating on the same.
  • Figure l is an elevational View of a pump embodying the features of the present invention.
  • Figure 2 is a vertical sectional view taken on lines 2-2 of Figure 1 and showing the relative positions of the combination fan and cover, the electric motor, pump impeller, and related parts.
  • Figure 3 is a broken bottom plan view of the fan and cover.
  • Figure 4 is a broken bottom plan view of the base and impeller housing and showing the relative position of the impeller blades with respect to the outlet, and
  • Figure 5 is a side elevational view of the impeller and showing the pitch of its blades.
  • the form of the invention illustrated includes an annular base I having an opening recess 2 in the bottom thereof, and preferably includes three equally spaced feet 3 around the base perimeter.
  • a cylindrical housing 4 Concentrically mounted on the base I there is a cylindrical housing 4 having a cup shaped combination fan and cover 5 above and over the upper end of the said housing.
  • an electric motor 6 having its lead wires I through the side of the said housing and a resilient washer in the latter, said wires being connected with the motor connections 8 (only one of which is shown).
  • the motor 6 is mounted upon 0 shaped brackets 9 which are secured at their lower ends to the base I by screws I 0.
  • the sides of the housing 4 are provided with openings II below the motor 6 and may include strainers I2 of wire screen or the like.
  • a fan shaft I3 extends upwardly from the motor 6 and secures the referred to fan and cover 5 in place.
  • the last referred to arrangement includes a fan hub I4 which is concentrically and rigidly mounted through and beneath the diametric center of the fan 5 and secured to the fan shaft I3 by means of a set screw I5.
  • the blades I6 of the fan 5 are in the form of vertically disposed and inwardly directed louvers or vanes, and are positioned for drawing air over the motor 6 between the same and the inner wall of the housing 4, and outwardly through the said fan blades.
  • An impeller shaft I! extends downwardly from the motor 6 through the axial center of the housing 4 and into the recess 2 of the base I where there is mounted, by means of a screw I8, an impeller I9, having radially and horizontally disposed blades 20.
  • within the base cavity 2 is secured by screws 22, to the base I and covers the impeller assembly I9.
  • An integral angular projection or boss 23 is positioned on the upper surface of the base I and near the impeller housing wall 2I.
  • An outlet tube 24 is connected with the boss 23, which is hollow, to provide communication between the said tube and the interior of the impeller housing 2I.
  • the impeller blades 20 are angularly disposed with respect to the shaft I1 so as to provide pitch to the impeller assembly I9, the direction of pitch being of such that it tends to lift the fluid within the housing 2I rather than to throw it to the side as in conventional centrifugal pumps.
  • Details of construction illustrated include a guard 25 around the lower motor shaft I! to prevent water from entering the said motor.
  • the pump In operation, the pump is placed within a level of water which is less than theheight of the guard 25. Water enters the housing 4 through the housing openings I I and fiows downwardly into the impeller housing 2 I after passing through an inlet 26 in the base I. As shown in Figures 2 and 4, the inlet 26 accommodates the vertical shaft I1, and is offset with respect to the said shaft to permit adequate flow therethrough.
  • the motor 6 When the motor 6 is actuated, the action of the impeller blades is to raise the water into the and cover secured to the upper end of said shaft, 1

Landscapes

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

Description

Jan. 11 1949. G. c. RL JDD El AL' 2,459,097
' PUMP FOR EVAPORATIVE AIR COOLERS OR THE LIKE Filed April 5, 1947 5 h I ,6 mzuzmmmm I J CBWR/GHT IN VENTORS ATTORNEY Patented Jan. 11, 1949 OFFICE PUMP FOR. EVAPORATIVE AIR COOLERS OR THE LIKE Gene C. Rudd and Cornelius B. Wright, Fort Worth, Tex.
Application April 5, 1947, Serial No. 739,710
1 Claim.
This invention relates to pumps such as those used in evaporative cooling units.
An object of the invention is to provide, in a pump of the referred to class, a construction and arrangement which is more efficient than corresponding pumps now in use.
A particular object of the invention is to provide an efficient combination fan and cover which will prevent water from dropping on the electric motor to prevent shorting.
Another object of the invention is to provide in a pump having a centrifugal impeller, means whereby the friction load of the fluid is materially reduced with reference to pumps of the same general type.
A further object of the invention is to provide, in addition to the foregoing, fan cooling means which draws air upwardly and outwardly over the motor so as to cool and prevent fluid from accumulating on the same.
These and other objects of the invention will become apparent from the following description of an exemplary form of the invention, wherein:
Figure l is an elevational View of a pump embodying the features of the present invention.
Figure 2 is a vertical sectional view taken on lines 2-2 of Figure 1 and showing the relative positions of the combination fan and cover, the electric motor, pump impeller, and related parts.
Figure 3 is a broken bottom plan view of the fan and cover.
Figure 4 is a broken bottom plan view of the base and impeller housing and showing the relative position of the impeller blades with respect to the outlet, and
Figure 5 is a side elevational view of the impeller and showing the pitch of its blades.
Accordingly, the form of the invention illustrated includes an annular base I having an opening recess 2 in the bottom thereof, and preferably includes three equally spaced feet 3 around the base perimeter.
Concentrically mounted on the base I there is a cylindrical housing 4 having a cup shaped combination fan and cover 5 above and over the upper end of the said housing.
Within the housing 4, and mounted for operation about a vertical axis, there is an electric motor 6 having its lead wires I through the side of the said housing and a resilient washer in the latter, said wires being connected with the motor connections 8 (only one of which is shown). The motor 6 is mounted upon 0 shaped brackets 9 which are secured at their lower ends to the base I by screws I 0.
The sides of the housing 4 are provided with openings II below the motor 6 and may include strainers I2 of wire screen or the like.
A fan shaft I3 extends upwardly from the motor 6 and secures the referred to fan and cover 5 in place. The last referred to arrangement includes a fan hub I4 which is concentrically and rigidly mounted through and beneath the diametric center of the fan 5 and secured to the fan shaft I3 by means of a set screw I5. The blades I6 of the fan 5 are in the form of vertically disposed and inwardly directed louvers or vanes, and are positioned for drawing air over the motor 6 between the same and the inner wall of the housing 4, and outwardly through the said fan blades.
An impeller shaft I! extends downwardly from the motor 6 through the axial center of the housing 4 and into the recess 2 of the base I where there is mounted, by means of a screw I8, an impeller I9, having radially and horizontally disposed blades 20. An impeller housing 2| within the base cavity 2 is secured by screws 22, to the base I and covers the impeller assembly I9.
An integral angular projection or boss 23 is positioned on the upper surface of the base I and near the impeller housing wall 2I. An outlet tube 24 is connected with the boss 23, which is hollow, to provide communication between the said tube and the interior of the impeller housing 2I. As shown in Figure 5, the impeller blades 20 are angularly disposed with respect to the shaft I1 so as to provide pitch to the impeller assembly I9, the direction of pitch being of such that it tends to lift the fluid within the housing 2I rather than to throw it to the side as in conventional centrifugal pumps. The
last described arrangement tends to reduce the.
friction loads occasioned by the action of the fluids aganst the inner wall of the housing 2|.
Details of construction illustrated include a guard 25 around the lower motor shaft I! to prevent water from entering the said motor.
In operation, the pump is placed within a level of water which is less than theheight of the guard 25. Water enters the housing 4 through the housing openings I I and fiows downwardly into the impeller housing 2 I after passing through an inlet 26 in the base I. As shown in Figures 2 and 4, the inlet 26 accommodates the vertical shaft I1, and is offset with respect to the said shaft to permit adequate flow therethrough. When the motor 6 is actuated, the action of the impeller blades is to raise the water into the and cover secured to the upper end of said shaft, 1
vertically disposed louvers in the periphery of of said fan, an impeller housing mounted beneath said base, impeller blades within said impeller housing and secured to the lower end of said shaft, fluid inlet means in said base and coin-'- municating with the interior of said impeller housing, fluid outlet means in said base over said blades and asymetrically positioned with 4 respect to the center thereof, and the said blades being angularly disposed for directing the action of the same toward the said outlet.
GENE C. RUDD. CORNELIUS B. WRIGHT.
REFERENCES CITED The following referencesare of record in the file of this patent:
UNITED STATES PATENTS Number Name Date D. 130,609 Bowen Dec. 2, 1941 1,651,881 Frickey et a1 Dec. 6, 192'? 5 11812874 Hedglon July 7, 1931 2,066,727 Ardrey July 2, 1935 2,295,982 Widman Sept. 15, 1942 2,308,335 Mackey et a1 Jan. 12, 1943
US739710A 1947-04-05 1947-04-05 Pump for evaporative air coolers or the like Expired - Lifetime US2459097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US739710A US2459097A (en) 1947-04-05 1947-04-05 Pump for evaporative air coolers or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US739710A US2459097A (en) 1947-04-05 1947-04-05 Pump for evaporative air coolers or the like

Publications (1)

Publication Number Publication Date
US2459097A true US2459097A (en) 1949-01-11

Family

ID=24973459

Family Applications (1)

Application Number Title Priority Date Filing Date
US739710A Expired - Lifetime US2459097A (en) 1947-04-05 1947-04-05 Pump for evaporative air coolers or the like

Country Status (1)

Country Link
US (1) US2459097A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885189A (en) * 1953-07-20 1959-05-05 Jet Heet Inc Personal thermal devices
US7284963B1 (en) * 2004-01-09 2007-10-23 Rejean Houle Zero maintenance pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651881A (en) * 1925-12-26 1927-12-06 Royal E Frickey Pumping system
US1812874A (en) * 1929-01-29 1931-07-07 M L Oberdorfer Brass Company Sump pump
US2006727A (en) * 1931-11-05 1935-07-02 Paul R Hazlett Pump construction
US2295982A (en) * 1939-04-13 1942-09-15 Widman Joseph Pump unit and stand
US2308335A (en) * 1941-05-26 1943-01-12 Henry W Mackey Electric fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651881A (en) * 1925-12-26 1927-12-06 Royal E Frickey Pumping system
US1812874A (en) * 1929-01-29 1931-07-07 M L Oberdorfer Brass Company Sump pump
US2006727A (en) * 1931-11-05 1935-07-02 Paul R Hazlett Pump construction
US2295982A (en) * 1939-04-13 1942-09-15 Widman Joseph Pump unit and stand
US2308335A (en) * 1941-05-26 1943-01-12 Henry W Mackey Electric fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885189A (en) * 1953-07-20 1959-05-05 Jet Heet Inc Personal thermal devices
US7284963B1 (en) * 2004-01-09 2007-10-23 Rejean Houle Zero maintenance pump

Similar Documents

Publication Publication Date Title
US5205725A (en) Top suction sump pump having bottom suction impeller
US3618337A (en) Hermetic refrigeration compressor
US2375571A (en) Pumping apparatus
US2857849A (en) Motor driven pumping units
US4856971A (en) Evaporative cooler pump apparatus
US4518325A (en) Aerifying device for whirlpool bath or tub
US3272137A (en) Self-priming pump
US3425355A (en) Dishwasher pump assembly
US2946286A (en) Valveless two way pump
US2930325A (en) Elevated discharge sump pump
US4632643A (en) Sump pump
JPS6129223B2 (en)
US2582902A (en) Power-operated ventilator
US3364860A (en) Combined recirculating and drain pump construction
US2459097A (en) Pump for evaporative air coolers or the like
US2516822A (en) Combined turbine and centrifugal booster pump
US1363315A (en) Rotary pump
US2867173A (en) Pump
US2394860A (en) Fuel pump
US3017526A (en) Weather protected vertical motors
GB2352509A (en) Air duct component
US2896544A (en) Deep well pump
US2905377A (en) Radial flow electric fan
US1758391A (en) Pump-impeller mounting for laundry machines
US1979630A (en) Humidifier