US768436A - Vaporizer for internal-combustion engines. - Google Patents

Description

PATENTED AUG. 23, 1904.

APPLIOATION FILED NOV. 20. 1902.

2 BHEETQ-SHEBT 1 H0 MODEL.

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tmwtzwtk i "PATENTED AUG. 23, 1904.

0. J.- EVERETT. VAPORIZER FOR INTERNAL COMBUSTION ENGINES.

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UNITE STATES Patented August 23, 1904.

PATENT. OFFICE.

CHARLES J. EVERETT, OF'NEW YORK, N. Y.

\VAPORIZER F oR INTERNAL-COMBUSTION ENGINES.

SPECIFICATION forming part .of Letters Patent No. 768,436, dated August 23,- 1904.

Application filed November 20, 1902 Serial No. 132,076. (No model.)

To alt whom it may concern.-

Be it known that 1, CHARLES J. EVERETT, a citizen of the United States, and a resident of the borough of Manhattan, in the city and State of New York, have invented new and useful Improvements in Vaporizers for-Interrial-Combustion Engines, of which the follow- 1 ing is a specification.

My invention relates to improvements in in ternal-combustion engines, and more partic:

ularly to an internal-combustion engine in which a liquid hydrocarbon fuel-is injected into a hot vaporizer containing an'expansion mediumsuch, for instance, as compressed airthe vaporizer being kept at a suificiently high temperature to cause an ignition of the mixed hydrocarbon and air.

My invention contemplates a structure in which the vaporizer is carried by the valvebox and is at all times in open communication therewith instead of in direct communition with the cylinder, thus permitting the piston to be brought into close proximity to the end wall of the cylinder at the limit of its outward stroke for increasing the efliciency of the engine by producing a higher pressure.

A further object is to provide a structure of the above character inwhich a more thorsection through the valve-box and the portion of the cylinder of the; engine. Fig. 3 is a side view of the parts represented in Fig. 1,.

and Fig. 1 is a'transverse, vertical section taken inthe plane of the line AA of Fig. 3 looking in the direction of the arrows.

The engine-cylinder is denoted by 1, and the piston fitted to reciprocate therein is de- 5 noted by 2. p

The valve-box is denoted by 3, its removable cover by 4, and the usual inlet and exhaust valves by 5 and 6.

The chamber within the valve-box is de- 5-5 noted .by 7, and the port leading from the chamber to the interior of the cylinder 1 of the engine is denoted by 8.

The parts above described may be made of size and shape to suit different requirements.

'The vaporizer is denoted by 9, which vaporizer is herein shown as being formed in tegral with the cover or top 4 of the valvebox. However, this vaporizer may be made i separate from the cover of the valve-box, the 5 essential feature being that the interior of the vaporizer should be always in open communication with the chamber 7 within the valvebox. This vaporizer is herein shown as of spherical form, and it may be heated up to a 7 point suflicient to ignite the combined liquid hydrocarbon and compressed air therein for starting the engine by any suitable means such, for'instance, as a burner 10, and a hood l1, partially embracing and spaced from the vaporizer.

The injector for the liquid hydrocarbon is denoted by 12 and in the present instance is removably secured in the wall of the valve- -boX, with its discharge-tip 13 located within the chamber 7 in position to direct the entering liquid hydrocarbon into'the interior of the vaporizer 9 through the narrow port 14, which connects the interior of the vaporizer 9 with the chamber 7 of the valve-box. The 5 pipe 15. of the injector 12 leads to any suitable source of liquid-hydrocarbon supply. (Not shown herein.)

The stroke of the piston within the cylinder 'is so arranged that the piston will be brought 9 into close proximity to the outer end of the cylinder when the piston is at the limit of its outward movement, thus compressing practically all of the air within the valve-box, port, and vaporizer.

' 9 The liquid hydrocarbonis injected'into the vaporizer by any desired means at such a point in the stroke of the piston as will give the best eiiiciency and not endanger a premature ignition of the mixed oil and air.

While the vaporizer 9 is heated to a point suflieient to insure the ignition of the mixed hydrocarbon and air for starting the engine, after the engine has been started the vaporizer will be kept sufliciently hot by the heat of combustion to render the exterior heating means Some of the advantages arising by connecting the vaporizer directly to the valve-box are as follows: The liability of the formation of carbon Within the cylinderis obviated, because of the ignition of the gases within the valvebox, port and vaporizer. The vaporizer is kept very clean, and the carbon will not be permitted to form on the walls thereof. The air caused to enter the vaporizer during compression will be the last and freshest air that entered the valve-box, thus insuring a more perfect combination with the liquid hydrocarbon injected into the vaporizer. Any formation of loose carbon Within the vaporizer or valve-box Will either be blown out by the exhaustgases or the valve-box chamber may be readily cleaned by removing the cover of the valve-box Without disturbing any other portion of the engine.

The arrangement hereinabove described also insures the discharge through the exhaust of any possible excess of liquid hydrocarbon at each-opening of the exhaust-valve. .This is a very-important point, as it prevents the liability of the racing of the engine, which has proven a serious source of trouble where an undue amount of liquid hydrocarbon has been permitted to collect within the cylinder or vaporizer.

Another great advantage arising from the arrangement of the parts hereinabove described lies in the cheapness of construction, owing to the small amount of machine-work required and the ease with which the parts may be assembled.

It is evident that changes might be resorted to in the form, construction, and arrangement of the several parts without departing from the spirit and scope of my invention. Hence 1 do not wish to limit myself strictly to the structure herein set forth; but

therein, a valve-box in open communication with the cylinder, inlet and exhaust ports for the valve-box, a vaporizer in open communication with the valve-box and an injector-nozzle located in the valve-box entirely exterior to the vaporizer and arranged to direct the liquid hydrocarbon into the vaporizer.

3. An internal-combustion engine comprising a cylinder, a piston fitted to reciprocate therein, a valve-box, inlet and exhaust valves therefor, a removable cover for the valve-box, a vaporizer carried by the cover exterior to the Valve-box and in open communication therewith and means for injecting the liquid hydrocarbon into the vaporizer.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 19th day of November, 1902.

CHARLES J. EVEREHI.

W'itnesses:

FREDK. HAYNES 7 HENRY Tenn! n.

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