US1239488A - Internal-combustion engine. - Google Patents

Description

W. F. HOSHEL. INTERNAL COMBUSTION ENGINE.

APPLICATION [ILED AUG.28.1916.

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INTERNAL COMBUSTION ENGINE.

APPLICATION FILED AUGJB. I916.

Patentedfiept. 11, 1917/.

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tdTATEd PATENT @FFTGE WILLIAM 1E, HOSHEL, OF THREE RIVERS, MICHIGAN, ASSIGNOR T0 SHEFFIELD CAR COMPANY, OF THREE RIVERS, MICHIGAN.

INTERNAL-COMBUSTION. ENGINE.

Specification of Letters Yatent.

Patented Sept. 11, 19d '2' Application filed August 28, 1916. Serial No. 117,247.

To all whom it may concern:

Be it known that I, WILLIAM F. HOSHEL,

a citizen of the United States, residing at Three Rivers, county of St. Joseph, State of Michigan, have invented certain new and useful Improvements in Tnterna1Gombus-' tion engine an improved fuel feed means which is efficient and at the same time very simple in structure and not likely to become disarranged in use.

Further objects, and objectsrelating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a detail view mainly in central section of a structure embodying my improvements.

Fig. H is a similar view of a slightly modified structure embodying my improvements.

Fig. HT is an enlarged detail section on line 3-3 of Fig. 11.

In the drawing similar reference numerals refer to similar parts in both views.

Referring to the drawing, 1 have shown my improvements embodied in a two-cycle en no for which they are especially desirable and as I have designed and adapted them for the market.

The cylinder 1 is mounted on the crank case 2 which, in the structure illustrated, constitutes the compression chamber of the engine. The cylinder is provided with an inlet port 3, an exhaust port 4, and a compression chamber inlet port 5. The crank case opens into the cylinder so that the piston 6 constitutes or serves as a compression pump plunger, as is well understood in twocycle engine practice. The exhaust port 4: and the inlet port 3 of the cylinder are located so as to be uncovered or opened when the piston is at the end of its instroke, in

which position the piston covers the compression chamber inlet port 5. When the piston is at the end of its outstroke the inlet port 3 and exhaust port l are closed by the piston and the compression chamber inlet port 5 is uncovered or opened.

The compression chamber is connected to the cylinder inlet port 3 by the passage 7 so that on the instroke of the piston the mixture is compressed in the compression chamber and forced through the passage 7 into the cylinder as soon as the port 3 is opened. The exhaust port is preferably slightly larger than the inlet port so that it is opened somewhat in advance of the inlet port to allow the escape of part of the exhaust gases and the incoming charge effectively drives out the remainder of the gases. The piston is provided with a deflector 8 directing the incoming gases toward the outer end of the cylinder.

The port 4 is provided with an exhaust pipe 9. An elbow shaped inlet passage member 10 is provided for the port 5, the inlet passage being provided with a throttle 11 which, in the structure illustrated, is in the form of a rotating damper valve. A fuel nozzle 12 is arranged through the elbow or angle of the passage member 10 with its tip centrally of the Venturi restriction 13 of the passage.

The discharge 1d of the fuel nozzle is in the form of a conical recess. The nozzle is provided with a needle regulating valve 15, the stem of which projects at the outer end of the nozzle'for convenience in adjustment. The nozzle is connected by the pipe 16 with the fuel reservoir 17. The pipe 16 has an extension 18 depending to the bottom of the reservoir. The pipe or conduit 16 is pro vided with a check valve 19. With the parts thus arranged the operation of the device is as follows:

When the piston moves on its outstroke it creates a partial vacuum in the compression chamber and when it has reached the end of its outstroke theport 5 in the compression chama ber is uncovered and the air rushes inthrough the intake passage into the compression chamber. The suction and inspirating eflect on the nozzle creates a suction in the feed pipe 16 and draws the fuel from the fuel tank. The needle valve regulates the amount of fuel drawn or delivered and owing to the q disposition of the needle valve relative to the nozzle opening and the form of the nozzle discharge the fuel is atomized as it is discharged into the passage and is drawn with the air into the compression chamber in the form of a vapor. The valve 19 checks the return of the fuel so that the feed after the engine is started is uniform and even, the fuel being effectively drawn from the reservoir. When the piston starts on its instroke the port 5 is closed and the charge compressed in the compression chamber and 20 is delivered therefrom into the cylinder as soon as the port 3 is opened, as has been described.

In the modification shown in Fig. II, the inlet passage 20 is disposed through the exhaust passage 21 so as to be heated thereby.

The nozzle 22 in this embodiment is arranged through the w all of the exhaust passage to deliver into the inlet passage at a point surrounded by the exhaust passa e. go The fuel feed pipe 23 is connected with t e fuel reservoir '24: substantially as in the structure described.

I preferably provide the inlet passage 20 with a priming pipe 25 delivering at 26.

The inlet passage 20 is provided with a rotary throttle valve 27 which rotates in the cylindrical bearing seat 28. The valve 27 comprises top and bottom disks 29 and 30 respectively, connected by the post 31 4g and the closure 32 which latter is adapted to close either the end of the priming ipe 25 or the air inlet opening 33 depen ing upon its position. The closure is cut away at 35 so that it may be turned to open the priming pipe 25 and at the same time partially open the inlet opening 33.

When fuels, such as kerosene, are used it is desirable to use gasolene or other readily vaporizing fuel for priming or starting the engine.

My improved internal combustion engine is very simple and economical in structure and at the same time is very efficient, enabling the use of kerosene as a fuel.

I have not attempted to illustrate or describe all the modifications or adaptations contemplated by me as I believe the disclosure made will enable those skilled in the art to which my invention relates to embody or adapt the same as may be desired.

Having thus described my invention, what I claim as new and desire to secureby Letters Patent, is:

1. In an internal combustion engine, the

combination of a cylinder provided with inlet and exhaust ports and a compression chamber inlet port, a crank case adapted as a compression chamber, a passage connecting said compression chamber to said cylinder inlet port, a piston constituting a pump plunger for said compression chamber, said compression chamber inlet port bein closed by the piston when it is at the en of its instroke and said cylinder inlet and exhaust ports are open, and open when the piston is at the end of its outstroke, and said cylinder inlet and exhaust ports are closed thereby, an elbow-shaped inlet passage member delivering to said compression chamber inlet port and having a Venturi restriction at its inlet port end, a fuel nozzle disposed through the elbow of said inlet passage member with its tip centrally in the Venturi restriction thereof, the discharge of said nozzle being conical, a needle valve for said nozzle, a fuel reservoir, a conduit connecting said fuel reservoir tosaid nozzle, a check valve for said conduit, the fuel being drawn past said valve to said nozzle by the suction or inspirating impulses of the compression chamber, and a throttle valve for said inlet passage member.

2. In an internal. combustion engine, the combination of a cylinder provided with inlet and exhaust ports and a compression chamber inlet port, a crank case adapted as a compression chamber, a passage connecting said compression chamber to said cylinder inlet port, a piston constituting a pump plunger for said compression chamber, said compression chamber inlet port bein closed by the piston when it is at the end 0% its instroke and said cylinder inlet and exhaust ports are open, and open when the piston is at the end of its outstroke, and said cyl-- inder inlet and exhaust ports are closed thereby, an inlet passage member deliverin to said compression chamber inlet port and having a vVenturi restriction at its inlet ort end, a fuel nozzle disposed with its ti centrally in the Venturi restriction thereo the discharge of said nozzle being conical, a regulatingvalve for said nozzle, a fuel reservoir, a conduit connecting said fuel reservoir to said nozz'le,a check valve for said conduit, the fuel being drawn past said valve to said nozzle by the suction or inspirating impulses of the compression Y chamber, and a throttle valve for said inlet passage member.

3. In an internal combustion engine the combination of a cylinder provided wit inlet and exhaust ports and a compression chamber inlet port, a compression chamher, a passage connectmg said compression chamber to said cylinder inlet port, a piston, said compression chamber inlet port being closed by the piston when it is at the end of its instroke and said cylinder inlet and exhaust ports are open, and open when the piston is at the end of its outstroke, said cylinder inlet and exhaust ports being then closed thereby, an elbow-shaped inlet passage member delivering to said compression chamber inlet portand having a Venturi restriction at its inlet port end, a fuel nozzle disposed through the elbow of said inlet passage member with its tip in the Venturi restriction thereof, the dischar e' of said nozzle being conical, a needle v ve for said nozzle, a fuel reservoir, a pipe connect' said fuel reservoir to said nozzle, a ch dfi valve for said pipe, the fuel being drawn past said valve to said nozzle by the suction 5 or inspirating impulses of the compression chamber, and a throttle valve for said inlet passage member. l

In witness whereof, l[ have hereunto set my hand and seal in the presence of two 20 witnesses.

wILmAM'F. nosnnn a a] Witnesses: I R. A, RENSENHOUBE V. J. Crimean.

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