US1877350A - Atomizer - Google Patents

Atomizer Download PDF

Info

Publication number
US1877350A
US1877350A US518139A US51813931A US1877350A US 1877350 A US1877350 A US 1877350A US 518139 A US518139 A US 518139A US 51813931 A US51813931 A US 51813931A US 1877350 A US1877350 A US 1877350A
Authority
US
United States
Prior art keywords
casing
spindle
flanges
fuel
liquid fuel
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
US518139A
Inventor
Meachem Harry
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.)
Todd Dry Dock Engineering & Re
Todd Dry Dock Engineering & Repair Corp
Original Assignee
Todd Dry Dock Engineering & Re
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 Todd Dry Dock Engineering & Re filed Critical Todd Dry Dock Engineering & Re
Priority to US518139A priority Critical patent/US1877350A/en
Application granted granted Critical
Publication of US1877350A publication Critical patent/US1877350A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • B05B7/067—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet the liquid outlet being annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space

Definitions

  • This invention relates to liquid fuel burners and my improvements are directed to an atomizer structure wherein liquid fuel, introduced thereinto under rotatingly low pressure, is subjected to high speed rotative means that impel the liquid fuel through a number of successive stages in said structure,
  • the emission outlet which may be in the form of a circularly tangential slit, whence the fuel issues whirlingly m a film that is caused to'take a partly spherical form.
  • Figure 1 is a side elevation, partly in section, of my improved atomizer
  • Fig. 2 is a front view of the spindle, with the member 14 removed.
  • the atomizer herein illustrated is shown as having a tubular casing 1 in which is revolubly fitted a spindle 2, rotatable in a counter-clockwise direction, viewed in the direction of flow, and that is provided with a succession of annular grooves or depressions 3, thereby leaving upon the spindle a series of radial flanges or collars 4 that are separated by intervening spaces 5.
  • Notches 6 are formed in the periphery of each flange or collar 4 as means of communication between the spaces, and said notches may have staggered relation in succeeding flanges.
  • Spindle 2 has a reduced extension 7, bearing a screw thread 8, said extension with its thread being housed partly in an extension 9, of smaller diameter, of easing 1, and partly in a casting 10 that is in screw threaded 60 engagement with casing extension 9.
  • a motor shaft 11 is shown as having a bearing in casting 10 and as being in screw threaded engagement with spindle 2, it being intended that the spindle is to be given a high speed of rotation which in practice has been 3500 R. P.
  • Liquid fuel introduced into an interspace of thread 8, as from a duct 12 in casting 10, is guided toward the flanged portion of the spindle in its rotation, and is forced through the stages represented by the flanges 4, with their staggered communicating notches 6, for issuance at the nozzle end of the atomizer.
  • the notches 6 are angled, as shown, to form a taper with the wall of easing 1 against which the spindle flanges rotate, the thin end of the taper leading in the rotation of the spindle. Hence liquid fuel in passing through the notches becomes thoroughly pulverized or broken up as it enters the successive stages of the atomizer..
  • tubular casing 1 The forward end of tubular casing 1 is beveled, as indicated at 13, and a cap member 14, secured upon a projecting end portiongtlli of spindle 2, co-acts with said bevelledhid 13, with which it is in spaced relation, to provide an annular slit 16 for issuance of the whirling fuel in the form of a film.
  • the cap member 14 is adjustable along spindle portion 15 to thereb vary the thickness, and hence the volume 0 the issuing film of fuel.
  • cap member 14 which is opposed to the casing end 13, is of convex contour, to thereby cause the issuing fuel film to take a conoidal form which adapts it par-v ticularly for co-operation with the supplies of primary and secondary air provided by the apparatus referred to in my aforesaid companion case.
  • a primary air supply nozzle is herein illustrated as a tubular member 18 that surrounds the casing 1 in a manner to provide an annular space 19 between said member and casing, just anterior the fuel issuance slit 16, said space 19 being a continuation of an air passageway 20, which is in communication with a source of pressure air supply, not illus-- trated herein.
  • the effect of the pressure of the outlet for space 19 lying a air, leaving the annular space 19, upon the film of fuel leaving issuance slit 16, is to impart a partly spherical form to said film.
  • a multi-stage atomizer for liquid fuel comprising a tubular casing, a spindle rotatable therein, a series of spaced, radial flanges on said spindle, said flanges co-acting with the spindle and casing to form intervening spaces, means of communication throu h said flanges, means for supplying liquid fuel to said casing, near one end thereof, means within the casing for impelling the liquid fuel toward the flanges, and means for the issue of fuel at the other end of the casing.
  • a multi-stage atomizer for liquid fuel comprising a tubular casing, a spindle r0tatable therein, a series of spaced, radial flanges on said spindle, said flanges co-acting with the spindle and casing to form intervening spaces, peripheral notches in said flanges for the passage of liquid fuel, the notches in succeeding flanges having staggered relation, means for supplying liquid fuel to said casing, near one end thereof, means for impelling the liquid fuel toward the flanges, and means for the issue of fuel at the other end of the casing.
  • a multi-stage atomizer for liquid fuel comprising a tubular casing, a spindle rotatable therein, a series of spaced, radial flanges on said spindle, said flanges co-acting with the spindle and casing to form intervening spaces, peripheral notches in said flanges for the passage of liquid fuel, said notches being tapered circularly, with the thin end of the taper leading in the rotation of the spindle, means for supplying liquid fuel to said casing, near one end thereof, means for impelling the liquid fuel toward the flanges, and means for the issue of fuel at the other end of the casing.
  • an atomizer for liquid fuel in combination, a tubular casing, a spindle rotatable therein, means for supplying liquid fuel to said casing, a series of spaced apart flanges on said spindle, in co-action with said casing, said flanges having peripheral notches for the passage of fuel, and the delivery end of said casing having an inclined, annular slit, for the issue of fuel in hollow, conoidal form.
  • an atomizer for liquid fuel in combination, a tubular casing, a spindle rotatable therein, means for supplying liquid fuel to said casing, a series of spaced apart flanges on said spindle, in co-action with said casing, said flanges having peripheral notches for the passage of fuel, the delivery end of said casing having an inclined surface, and a head port-ion for said spindle having a convex surface in opposed relation to the inclined end of the casing, thereby providing an inclined slit for the issue of a film of fuel in hollow, conoidal form.
  • an atomizer for liquid fuel in combination, a tubular casing, a spindle rotatable therein, means for supplying liquid fuel to said casing, aseries of spaced apart flanges on said spindle, in co-action with said casin g, said flanges having peripheral notches for the passage offuel, the delivery end of said casing having an inclined surface, and a head portion for said spindle having a convex surface in opposed relation to the inclined end of the casing, thereby providing an inclined slit for the issue of a film of fuel in hollow, conoidal form, and means for ad'- justing the width of the slit.
  • a tubular casing a spindle rotatable therein, said spindle carrying a screw thread near one end of said casing, means for introducing fuel to an interspace of said thread, a series of spaced apart flanges on said spindle, in co-action with said casing, said flanges having peripheral notches for the passage of fuel, and means at the other end of said casing for fuel delivery.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Description

Patented Sept. 13, 1932 UNITED STATES PATENT OFFICE HARRY MEACHEM, OF TEANECK, NEW JERSEY, ASSIGNOR TO TODD DRY DOCK, EN-
GINEERING & REPAIR CORPORATION,
OF BROOKLYN, NEW YORK ATOMIZER Application filed February 25, 1931, Serial No. 518,139. Renewed June 29, 1932.
This invention relates to liquid fuel burners and my improvements are directed to an atomizer structure wherein liquid fuel, introduced thereinto under rotatingly low pressure, is subjected to high speed rotative means that impel the liquid fuel through a number of successive stages in said structure,
until it reaches the emission outlet, which may be in the form of a circularly tangential slit, whence the fuel issues whirlingly m a film that is caused to'take a partly spherical form.
To aid in preventing this partly spherical film of liquid fuel from tailing out radially,
primary and secondary supplies of air, provided to support combustion, may be employed in the manner set forth in my companion case, filed concurrently herewlth, entitled Improvements in the methods of air delivery for fuel combustion and apparatus therefor, with Serial No. 518,138
and filing date of February 25, 1931, the present application dealing particularly with the structure of the atomizer per se.
Other features and advantages of my invention will hereinafter appear.
In the drawing:
Figure 1 is a side elevation, partly in section, of my improved atomizer, and
Fig. 2 is a front view of the spindle, with the member 14 removed.
The atomizer herein illustrated is shown as having a tubular casing 1 in which is revolubly fitted a spindle 2, rotatable in a counter-clockwise direction, viewed in the direction of flow, and that is provided with a succession of annular grooves or depressions 3, thereby leaving upon the spindle a series of radial flanges or collars 4 that are separated by intervening spaces 5. Notches 6 are formed in the periphery of each flange or collar 4 as means of communication between the spaces, and said notches may have staggered relation in succeeding flanges.
Spindle 2 has a reduced extension 7, bearing a screw thread 8, said extension with its thread being housed partly in an extension 9, of smaller diameter, of easing 1, and partly in a casting 10 that is in screw threaded 60 engagement with casing extension 9. A motor shaft 11 is shown as having a bearing in casting 10 and as being in screw threaded engagement with spindle 2, it being intended that the spindle is to be given a high speed of rotation which in practice has been 3500 R. P.
Liquid fuel introduced into an interspace of thread 8, as from a duct 12 in casting 10, is guided toward the flanged portion of the spindle in its rotation, and is forced through the stages represented by the flanges 4, with their staggered communicating notches 6, for issuance at the nozzle end of the atomizer.
The notches 6 are angled, as shown, to form a taper with the wall of easing 1 against which the spindle flanges rotate, the thin end of the taper leading in the rotation of the spindle. Hence liquid fuel in passing through the notches becomes thoroughly pulverized or broken up as it enters the successive stages of the atomizer..
The forward end of tubular casing 1 is beveled, as indicated at 13, and a cap member 14, secured upon a projecting end portiongtlli of spindle 2, co-acts with said bevelledhid 13, with which it is in spaced relation, to provide an annular slit 16 for issuance of the whirling fuel in the form of a film. The cap member 14 is adjustable along spindle portion 15 to thereb vary the thickness, and hence the volume 0 the issuing film of fuel. The surface 17 of cap member 14, which is opposed to the casing end 13, is of convex contour, to thereby cause the issuing fuel film to take a conoidal form which adapts it par-v ticularly for co-operation with the supplies of primary and secondary air provided by the apparatus referred to in my aforesaid companion case.
Although forming no part of the present application, a primary air supply nozzle is herein illustrated as a tubular member 18 that surrounds the casing 1 in a manner to provide an annular space 19 between said member and casing, just anterior the fuel issuance slit 16, said space 19 being a continuation of an air passageway 20, which is in communication with a source of pressure air supply, not illus-- trated herein. The effect of the pressure of the outlet for space 19 lying a air, leaving the annular space 19, upon the film of fuel leaving issuance slit 16, is to impart a partly spherical form to said film.
Variations within the spirit and scope of my invention are equally comprehended by the foregoing disclosure.
I claim:
1. A multi-stage atomizer for liquid fuel comprising a tubular casing, a spindle rotatable therein, a series of spaced, radial flanges on said spindle, said flanges co-acting with the spindle and casing to form intervening spaces, means of communication throu h said flanges, means for supplying liquid fuel to said casing, near one end thereof, means within the casing for impelling the liquid fuel toward the flanges, and means for the issue of fuel at the other end of the casing.
2. A multi-stage atomizer for liquid fuel comprising a tubular casing, a spindle r0tatable therein, a series of spaced, radial flanges on said spindle, said flanges co-acting with the spindle and casing to form intervening spaces, peripheral notches in said flanges for the passage of liquid fuel, the notches in succeeding flanges having staggered relation, means for supplying liquid fuel to said casing, near one end thereof, means for impelling the liquid fuel toward the flanges, and means for the issue of fuel at the other end of the casing. 1
-3. A multi-stage atomizer for liquid fuel comprising a tubular casing, a spindle rotatable therein, a series of spaced, radial flanges on said spindle, said flanges co-acting with the spindle and casing to form intervening spaces, peripheral notches in said flanges for the passage of liquid fuel, said notches being tapered circularly, with the thin end of the taper leading in the rotation of the spindle, means for supplying liquid fuel to said casing, near one end thereof, means for impelling the liquid fuel toward the flanges, and means for the issue of fuel at the other end of the casing.
4:. In an atomizer for liquid fuel, in combination, a tubular casing, a spindle rotatable therein, means for supplying liquid fuel to said casing, a series of spaced apart flanges on said spindle, in co-action with said casing, said flanges having peripheral notches for the passage of fuel, and the delivery end of said casing having an inclined, annular slit, for the issue of fuel in hollow, conoidal form.
5. In an atomizer for liquid fuel, in combination, a tubular casing, a spindle rotatable therein, means for supplying liquid fuel to said casing, a series of spaced apart flanges on said spindle, in co-action with said casing, said flanges having peripheral notches for the passage of fuel, the delivery end of said casing having an inclined surface, and a head port-ion for said spindle having a convex surface in opposed relation to the inclined end of the casing, thereby providing an inclined slit for the issue of a film of fuel in hollow, conoidal form.
6. In an atomizer for liquid fuel, in combination, a tubular casing, a spindle rotatable therein, means for supplying liquid fuel to said casing, aseries of spaced apart flanges on said spindle, in co-action with said casin g, said flanges having peripheral notches for the passage offuel, the delivery end of said casing having an inclined surface, and a head portion for said spindle having a convex surface in opposed relation to the inclined end of the casing, thereby providing an inclined slit for the issue of a film of fuel in hollow, conoidal form, and means for ad'- justing the width of the slit.
7. In an atomizer for liquid fuel, in combination, a tubular casing, a spindle rotatable therein, said spindle carrying a screw thread near one end of said casing, means for introducing fuel to an interspace of said thread, a series of spaced apart flanges on said spindle, in co-action with said casing, said flanges having peripheral notches for the passage of fuel, and means at the other end of said casing for fuel delivery.
New York, N. Y., February 2nd, 1931.
HARRY MEACHEM.
US518139A 1931-02-25 1931-02-25 Atomizer Expired - Lifetime US1877350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US518139A US1877350A (en) 1931-02-25 1931-02-25 Atomizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518139A US1877350A (en) 1931-02-25 1931-02-25 Atomizer

Publications (1)

Publication Number Publication Date
US1877350A true US1877350A (en) 1932-09-13

Family

ID=24062722

Family Applications (1)

Application Number Title Priority Date Filing Date
US518139A Expired - Lifetime US1877350A (en) 1931-02-25 1931-02-25 Atomizer

Country Status (1)

Country Link
US (1) US1877350A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617252A (en) * 1947-11-07 1952-11-11 Douglas Aircraft Co Inc Rotary turbocompressor jet engine after-burner
US2674494A (en) * 1950-02-21 1954-04-06 Fmc Corp Shear nozzle for spraying and dusting apparatus
US3079236A (en) * 1960-08-12 1963-02-26 Columbian Carbon Manufacture of carbon black
US4294408A (en) * 1980-05-08 1981-10-13 Graco Inc. In centrifugal spray guns
US4986475A (en) * 1988-02-19 1991-01-22 Nabisco Brands, Inc. Method and apparatus for spraying fluids
US20040142014A1 (en) * 2002-11-08 2004-07-22 Conor Medsystems, Inc. Method and apparatus for reducing tissue damage after ischemic injury
US20050100667A1 (en) * 2003-11-06 2005-05-12 Optical Coating Laboratory Inc. Method of applying a uniform polymer coating
WO2015095763A1 (en) 2013-12-19 2015-06-25 United Technologies Corporation Self-pumping fuel injector for a gas turbine engine and method of operation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617252A (en) * 1947-11-07 1952-11-11 Douglas Aircraft Co Inc Rotary turbocompressor jet engine after-burner
US2674494A (en) * 1950-02-21 1954-04-06 Fmc Corp Shear nozzle for spraying and dusting apparatus
US3079236A (en) * 1960-08-12 1963-02-26 Columbian Carbon Manufacture of carbon black
US4294408A (en) * 1980-05-08 1981-10-13 Graco Inc. In centrifugal spray guns
US4986475A (en) * 1988-02-19 1991-01-22 Nabisco Brands, Inc. Method and apparatus for spraying fluids
US20040142014A1 (en) * 2002-11-08 2004-07-22 Conor Medsystems, Inc. Method and apparatus for reducing tissue damage after ischemic injury
US20050100667A1 (en) * 2003-11-06 2005-05-12 Optical Coating Laboratory Inc. Method of applying a uniform polymer coating
US6933019B2 (en) 2003-11-06 2005-08-23 Jds Uniphase Corporation Method of applying a uniform polymer coating
WO2015095763A1 (en) 2013-12-19 2015-06-25 United Technologies Corporation Self-pumping fuel injector for a gas turbine engine and method of operation
EP3084309A4 (en) * 2013-12-19 2017-01-04 United Technologies Corporation Self-pumping fuel injector for a gas turbine engine and method of operation
US10443851B2 (en) 2013-12-19 2019-10-15 United Technologies Corporation Self-pumping fuel injector for a gas turbine engine and method of operation
US11466857B2 (en) 2013-12-19 2022-10-11 Raytheon Technologies Corporation Self-pumping fuel injector for a gas turbine engine and method of operation

Similar Documents

Publication Publication Date Title
US3713588A (en) Liquid fuel spray nozzles with air atomization
US2380463A (en) Fluent fuel burner
US1877350A (en) Atomizer
US4365753A (en) Boundary layer prefilmer airblast nozzle
US1719090A (en) Oil burner
US2325442A (en) Pulverized fuel burner
US2347594A (en) Tuyere structure
US2560866A (en) Rotating atomizing cup burner
US1236073A (en) Centrifugal oil-burner.
US2566788A (en) Air assisted fuel nozzle
US2990165A (en) Apparatus for generating foam for use in fire fighting
US1593186A (en) Atomizer for liquid fuel and the like
US1587249A (en) Method of and apparatus for burning oil
US1436351A (en) Fuel nozzle
US1943083A (en) Air register
US2615407A (en) Distributor means for pulverized fuel burners
US1770232A (en) Oil burner
US2098136A (en) Apparatus for use in making cement
US1680455A (en) Oil burner
GB267656A (en) An improved air distributing device
US1884931A (en) Liquid atomizer
US1762356A (en) Liquid-fuel burner
US2204170A (en) Atomizer burner for liquid fuels
US1697279A (en) Rotary atomizing burner
US2473945A (en) Rotary fuel burner with removable fuel-conducting means