US1201976A - Fuel mixing and gasifying device. - Google Patents

Description

H. B. LOVEJOY; I FUEL MIXING AND GASIFYING DEVICE.

APPLICATION FILED OCT. 18, I915.

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FUEL MIXING AND GASIFYING DEVICE.

tween the engine and its carbureter and wherein a low grade of fuel such as crude oil may be mixed and heated to a high temperature to thoroughly atomize and gasify the same before it is admitted to the cylinders of the engine for combustion.

The invention consists in the novel con struction of fuel mixing and gasifying devices and the adaptation of such devices to an internal combustion engine and'its carbureter aswill be more clearly described in the following specification, illustrated in the accompanying drawings and finally pointed out in the appended claims.

In the accompanying drawings Figure 1 is a view in vertical mid-section of a device embodying my invention; Fig. 2 is a view in horizontal cross section on broken line .2, 2. of Fig. 1.

The device herein disclosed is in actual operation on a marine engine adapted to burn distillate and it is found that when this device is used the engine will run very satisfactorily on a low gravity oil that is very much cheaper than distillate.

Referring to the drawings throughout which like reference numerals indicate like parts the numeral 3 indicates the outer wall of a fuel mixer that is preferably construct-.

ed with an integrally formed inner wall a spaced within the outer wall to form an annular passageway 5 therebetween through which heated exhaust gases from an internal combustion engine (not shown) may be caused to pass.

The device is provided with a cover plate (3, secured thereto by set screws 7 and threaded for the reception of a pipe 8 that Specification of Letters Patent.

securely on top of it.

Patented Oct. 1'7, 1916 application. filed October 18, 1915. Serial No. 56,631.

is directly connected with the 'fuel inlet port of an internal combustion engine. The bottom side of the casing is threaded for the reception of a fuel inlet pipe 9 that leads directly from a carbureter, (not shown) and the sides of the outer wall 3 are provided at diametrically opposite points with bosses 10 that are threaded for the reception of pipes 11 and 12, one of the pipes as the pipe 11 being directly connected with the exhaust port of the engine and the other pipe 12 being the pipe through which the exhaust gases escape into the atmosphere.

An annular ring or washer 14 is secured within the upper portion of the device by inserting the peripheral edges of such washer in suitably formed notches in the wall 4L- and then clamping the cover plate A plurality of depending brackets 15 are secured to the washer 14 and serve to support a circular deflector or target 16 in a concentric position within a. mixing chamber 17 that is formed by the walls 4. The deflector 16 is of considerably smaller diameter than the mixing chamber 17 and is located in a plane at right angles to the axis of the mixing chamber at a point about half way between the top and bottom thereof.

The lower end of the chamber 17 is formed with converging or conically shaped walls 18, h'erein shown as disposed at an angle of about forty-five degrees, and within which are provided a plurality of perforations 20 that communicate with the chamher 5 and serve to direct a plurality of small jets of exhaust gas upwardly against the central portion of the deflector 16. A screen 21 of relatively fine mesh is interposed in the passageway between the mixing chamber 17 and the fuel supply pipe 8 that leads .to the engine such screen preferably having its edges secured between the washer 14 and the brackets 15.

In use the device herein shown is connected with the fuel supply pipe of an internal combustion engine between the engine and the carburetor and a low grade of fuel. as crudeoil is admitted to the carbureter. The pipe 11 is connected with the exhaust pipe of the engine and the engine is then started preventthm from .prising an outer casing,

in the usual manner and as .it runs draws the fuel-from the carbureter through the mixing chamber 17. The heated exhaust gases from the engine will circulatethrough the passageway 5 as indicated by the arrows A in Fig. 2 thus heating the walls of the chamber 17 to a high temperature and causedges of the deflector 16 through the screen 21 and through the pipe 8 to the engine. The screen 21 insures that no foreign particles of solid matter will find their way into the cylinder of the engine.

i The device is easily assembled and taken apart, the removal of the cover plate 6 permittin the ring 14: and parts connected therewith to be lifted out and access to be had to the interior of the mixing chamber.

The amount of exhaust gas admitted through the perforations 20 is not sufficient to dilute the fuel taken in through the mixer enough to appreciably lessen its efficiency, the exhaust gas simply helping to atomize and gasify the crude fuel as it. is drawn through. the mixing chamber 17.

In some instances it may be found advantageous to provide an asbestos covering for the mixing device and exhaust pipes to presenting a heated ex terior surface.

v Obviously changes in the form of construction of my device may be made within the scope of the claims.

What I'claim is v 1. A device of the class described coman inner casing spaced within said outer casing to form a mixing chamber for fuel and a passageway forheated gases said inner casing having perforated walls, inlet and outlet pipes com municating with said passageway for heated gases, fuel inlet and outlet pipes communicating with said mixing chamber, and a deflector interposed in said mixing chamber in line with said fuel inlet pipe.

2. A. device of the class described comprising an outer casing, an inner .casing spaced 'withinsaid outer casing to form a mixing chamber for fuel and a passageway for heated gases said inner casing having converging perforated walls at its lower end communicating with said passageway for heated gases, inlet and outlet pipes for exhaust gases communicating with said passageway, inlet and outlet pipes for fuel communicating with said mixing chamber,

and a deflector interposed in said mixing.

mg chamber in alinement with and in a plane at right angles to said inlet fuel supply pipe and perforations in said inner Walls for admitting a plurality of jets of exhaust gas from said passageway into said mixing chamber.

4. A device of the class described comprising an inner casing inclosing a mixing chamber said inner ing walls at the bottom end thereof that are perforated to direct a plurality of jets of gas'upwardly and inwardly, a deflector in said mixing chamber, a fuel inlet pipe communicating with said mixing chamber and connected with a 'carbureter, a fuel outlet pipe connecting said mixing chamber with an engine, a screen between said mixing chamber and said fuel outlet pipe, an outer casing surrounding said inner casing andforming a passageway therebetwen and inlet and outlet pipes for heated exhaust gases connected with said passageway.

5. A device of the class described comprising an inner casing inclosing a mixing chamber said inner casing having convergi ng Walls at the bottom end thereofthat are perforated to direct a plurality of jets of gas upwardly and inwardly, a deflector in said mixing chamber for said jets of gas to impinge upon, brackets supporting said deflector, a ring connected with said brackets, a cover for said casing adapted to clamp said ring, a screen associated with said ring, a fuel inlet pipe, a fuel outlet pipe, an outer casing surrounding said inner casing. and forming a passageway there-between, an inlet pipe for heated gases and an outlet pipe for heated gases.

6, A heater and gasifier for low gravity oil, comprising a casing having a mixing chamber and a passageway for heated gases, a deflector in said mixing chamber, and perforations in the Wall between said mixing chamber and said passageway for heated gases to direct jets of heated gases into said mixing chamber.

- 7. A device of the class described comprising a casing having a mixing chamber for low gravity fuel and a separate passageway for exhaust and a wall between casing having convergsaid mixing chamber and said passageway, said Wall having perforations to direct jets of exhaust gases from said passageway into said mixing chamber to atomize and gasif v' said low gravity fuel.

8. A device of the class described comprising a casing having an inner and an outer wall that form a mixing chamber for fuel and a passageway for heated gases around said mixing chamber, said inner 10 wall having perforations formed therein.

Signed by me at Seattle Washington, this 4th day of October, 1915.

HOWARD B LOVEJOY.

\Vitnesses R. A. MAGKEY, BEN L. MOORE.

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