US1466797A - Homogenizer - Google Patents

Description

Sept. 4, 1923.

H. S. LAMB HOMOGENIZER Filed May 26. 1921 Patented Sept.. 6l, igz

interet nutren. stares earner eterea' M931) S. LAMB, F LOS NGELN, CALIFORNIA, ASSIGNOR T0 WILLIAM C. SCHEU,

0F LOSANGELIES, CALIFORNIA.

' noraoonnrzna.

Application IedMay-, 1921. Seriaio. 472,722.

To all whom it may concern:

Be it known that 1f, Hanoi@ S. Lamm a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State oit California, haveinvented new and useful Improvementsin Homogenizers, of which the following is a Nspecicat-ion.v

My invention relates to new and useful improvements in homogenizers or mixers of the type that are utilized for vaporizing liquid hydrocarbon and the like and e'ecting a thorough mixture of the resulting vapor with air to produce a highly combustible mixture that may be burned for the production of heat or utilized asy the gaseous fuel 'for the operation of internal combustion engines.

rlhe principal objects of my invention are to generally improve upon and simplify the construction of the existing types of similar vaporizing and mixing devices, to provide a relatively simple and ecient structure wherein the mixture of vaporized liquid hydrocarbon and air is heated to a temperature greater than that required for the vaporization of the liquid hydrocarbon and less than the temperatureatwhich the mixture is selfignitiig; to provide for the admission of suiicient air to the mixture to insure complete combustion andl maintain the temperature of said mixture below the point of selfignition and consequently producinna combustible mixture that will burn readily with a high degree of heat in the open air or which can be effectively usedas a gaseous fuel in an internal combustion engine.

Further objects of my invention are to provide, \in a vaporizer and mixer, a conduit or vaporizing chamber having an intermediate portion that is enlarged withrspect to its inlet and outlet, such construea gaseous fuel having a high degree of et'-l icieney when burned for the production of heat or utilized as gaseous'vfuel in an internal combustion engine. v

A still further and important object of 'my invention is theprovision of relatively simple and efficient means for controlling the delivery of liquid hydrocarbon to the mixing chamber of the device and likewise for controlling the How or delivery of gaseous fuel to the heating device or burner that. is utilized in connection with the vaporizer and mixer especially in starting.

lr/Vith the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement ofv parts that will be hereinafter more fully de scribed and claimed, and illustrated in the accompanying drawings, in whichy F ig. 1 is 'a vertical section taken through a vaporizing and mixing device of my improved construction and showing said device associated with a gas or vapor burner.

Fig. 2 is a horizontal section taken on the line 2 2 of Fig. 1.

Referring by numerals to the accompanying drawings, which illustrate a practical embodiment of my invention, designa-tes the main body portion of the combined vaporizing and mixing chamber, the same berre ing inthe form of a relatively short hollow cylinder with tapered end portions 11, one of which is provided with a tubular extension 12, that serves as an inlet, and the other reduced end portion being provided with a tubular extension 18, that serves as an outlet. f

internal diameter of the body portion 10 of the device, and formedA integral with or fixed to the wall of thebody portion 10 and the tapered end portions 11 of the device, is an'inwardly presented spirall flange 14 that serves to direct t e flow of air and vaporthroughthe device'and presenting a continuous obstruction orbaile The internal diameters of the inlet 12 and outlet f1 are substantially less than the l disposed rplate toA said air 'and vapor in its lpassage through the. enlarged chamber within` the body portion 10.

Projecting outwardly fronif the lower por- Y tion of the body ofthe device, is a horizontallyv rdisposed arcuate plantel-5, 'and' posijacent to the tubular extension 12 ot' re--i tioned on the outer edge thereof is a vertically disposed semi-circular plate 16 that is spaced apart from the main body portion of the device and the upper portion of said plate being extended inwardly, as designated by 17, and terminating immediately adduced diameter atl the upper end ci' the device.

W here my improved vaporizer and mixer is associated with a gas or vapor burner 18, as shown in the accompanying drawing, said burner is directly connected to the tubular extension 13 of reduced diameter r at the lower end of the vaporizing and mixing device, andflea'ding to the tubular extension l2 at the upper end of the device, from a suitably located blower or air compressor (not shown), is an air supply pipe 19 within which, adjacent to the tubular `extension 12, is arranged a venturi tube 20.

Suitably located adjacent to the device is a housing 21, to which leads a liquid hydrocarbon supply pipe 22, and arranged within said housing, is a fluid control valve 23 the operation of which co-ntrols the flow of liquid hydrocarbon from supply pipe 22 maintaining the level of liquid hydrocarbon just below the nozzle opening 28 and communicating with said nozzle through pipe 24, valve 25 and pipe 27.

This pipe 24 is connected to a valve 25, the opening or port in which is adapted to be closed by the upper end of a vertically disposed stem 26, and leading from said valve, below the port or opening therein to air tube 19 immediately to the rear of the Venturi tube 20, is a pipe `or conduit 27, the same being provided with a jet nozzle 28 that is axially disposed withiny tube 19 immediately to the rearof said venturi tube.

Leading to burner 18 is algas supply pipe 29, in which is located a valve housing'30 and the port oropening through which latter is controlled by a valve 3l that is carried by the lower end of stem 2 6.

Fixed on stem 26 is a collar 32 beneath which is arranged a/compression spring 33,

, the burner 18, is a tubularmember 39.

Located in tube 29, below valve 30, is a valve housing 40 the opening inwhich is r controlled by an electrically operated valve 41, and which latter is connected in series withy the motor that operates the compressor or blowerthat is connected to air supply pipe 19. v

Leading from'tubular member 29, at a point adjacent to burner 18, is a pilot, light supply pipe 42 that is provided with a suitable regulating valve, preferably, a screw 43. ,l l

W hen my improved vaporizer and mixer is not in service, thermostatic member 36 is not expanded, thereby maintaining pin or stem 35 in elevated position and permitting spring to expand and retain stem 26 in elevated osition, thereby closing the passageway t rough valve housing 25 and opening the port or passageway through valve housing 30.

lith the circuit in which electrically operated valve 41 is located open, said valve will rest upon its seat within housing 40. i' y n N hen the circuit in which the motor associated with the blower or air compressor isclosed, valve 4l will be elevated, thereby permitting gas to pass through pipe 29 and through open valve 31, and said gas is delivered to burner '18, where it is ignited and burns with a horizontally disposed circular flame. j

A portion of. this llame impinges directly against the body portion 10 of the mixing device, thereby heating the same, and likewise portions oit the flame enter the chamber 15 between the body of the device and the semi-circular wall 16, with the result `that the entire body portion 10 and the tapered end portions 11 of the-.device are uniformly heated.

As soon as sufficient heat has been developed within the burner and the lower portion of the mixing device, a circulation of heated air will be established through tubular members 38 and 39 and housing 37, with the result that thermostatic member 36 will expand, thereby forcing pin or stem 35 and lever 34 downwardly and which action will compress spring 33 and consequently close valve 31 and withdraw the upperA end of `115' compressor or blower will carry the liquid hydrocarbon thus discharged into said pipe through the venturi -tube and romythence into and through the mixing device` and,

by virtue of the enlarged chamber inpthe Bil i incase? intermediate portion of said device, the ilow of air and liquid hydrocarbon will be materially retarded, so that the liquid hydrocarbon will be fvaporizedi under heat and eectively mixed with the air, thereby producing a highly combustible mixture that will burn readily when discharged from the jet opening of the burner 18.

The spirally disposed member 14 within the mixing device imparts a whirling movement to the air and vaporpassing through the enlarged chamber in the device, and, in this connection it will be understood that, where a whirling or spiral movement is imparted to air and liquid hydrocarbon, any globules of unvaporized liquid will be thrown outwardly against the wall of the chamber through which said liquid and air is passing, and where thewall of the chainbei` is heated, such globules of liquid hydrocarbon will be very quickly and effectively vaporized land in such condition, will mix readily with the air. -i

To achieve best results, it is desirable that the temperature of .the mixing device be at an intermediate point between the temperature required for vaporization and the temperature at which the resulting mixture will ignite spontaneously. This desired temperature is maintained by the regulation of air thatjenters and passes through the device, and such regulation is necessary for the vaporization of the liquid hydrocarbon, absorbs a certain amount of heat and tends to cool the resulting mixture.

Where my improved device is utilized for the production of gaseous fuel that is to be burned for the production of heat, it is arranged immediately adjacent to the burner, as shown.

Instead of constructing the device as herein shown and described, it may take several dilierent forms.

A mixing and `vibrating device of my irnproved construction is comparatively simplev may lie easily and cheaply produced andf'is very effective in performing its intended functions I claim as my invention:

1. The combination with a mixing device, and a burner associated therewith, of means for delivering air and liquid hydrocarbon to said mixing device, -means for delivering gaseous fuel to the burner, and temperature controlled means for controlling the flow of liquid hydrocarbon to'said' device and for controlling the flow of gas tothe burner.

2. The combination with a mixing device and a burner associated therewithgof means for delivering air and liquid -hydrocarbon to said mixingdevice, means for delivering gaseous fuel to the burner` temperature controlled means for controlling the flow of liquid hydrocarbon to said device and for controlling the Liiow of gas to the burner, and

of a burner connected to the outlet end of said device, means for delivering air and liquid h 'drocarbon to the inlet end of said mixing evice, means for delivering gaseous fuel to said burner, temperature controlledy means for controlling the flow of liquid hydrocarbon to said Idevice and for controlling the flow of gaseous fuel to said burner, and auxiliary means for controlling the How of gaseous fuel to said burner.

5. The combination with a mixing device and a heating device associated therewith, of

means for delivering air and liquid hydrocarbon to said mixing device, means for delivering gaseous fuel to said heating device, and means controlled by the heat generated by said `heating device for controlling the iow of liquid hyrocarbon' to said mixing device and the flow of gaseous fuel to said heatin device.

6. T e combination with a mixing device and aheating device associated therewithxof means for delivering air and-liquid hydrocarbon to `said mixing device, means for delivering gaseous fuel to said heating device, means controlled by the heat generated by said heating device for controlling the flow` of liquid hydrocarbon to said mixing device and the flow of gaseous fuel to said heating device, and means for cutting od the How of -gaseous fuel to said heating device when the eliver'y of air and liquid hydrocarbon to the mixing device is cut 0E.

7. The.'v combination with a mixing device and a burner associated therewith, of means for delivering air and liquid hydrocarbon to the inlet end of said mixing device, means `for delivering gaseous fuel to said burner,

and means controlled by the heat generated by said burner for cutting of the flow 0f gaseousv fuel tosaid burner and simultaneously opening the passageway through which the liquid hydrocarbon is admitted to said mixing device.

8. The combination with a mixing device and a burner associated therewith, .of means for deliverin air and liquid hydrocarbon tov the inlet en of said mixing device, means for delivering gaseous fuel to said burner,

means controlled by the heat generated by said burner for cutting of the flow of gaseous fuel to said burner and simultaneously openthe How of gaseous fuel to said burner, and 10 ing the passageway through which the liquid electro-magnetically operated valve for oonhydrocarbon is a mitted to said mixing detrolling the How of gaseous fuel to said viee,and auxiliary means for controlling the burner when the temperature controlled 5 flow of gaseous fuel to said burner. means is out of service. y

9. The combination with a mixing device In testimony whereof I have signed my 15 and a burner associated therewith, ofmeans name to this specification. for delivering gaseous fuel o said burner, y temperature controlled means for Controlling n HAROLD S. LAMB.

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