US2134786A - Motor - Google Patents

Description

I. P. HARING Nov. 1, 1938.

MOTOR Filed Oct. 27, 1956 5 Sheets-Sheet 1 I. P. HARING Nov. 1, 1938.

MOTOR Filed Oct. 27, 1936 3 Sheets-Sheet 2 Nov. 1, 1938.

I. P. HARING MOTOR Filed Oct. 27, 1936 3 Sheets-Sheet 3 G: by: H441 Patented Nov. 1, 1938 PATENT OFFICE MOTOR Ivan P. Haring, Houston, Tex assignor of twothirds toThomas L. Cummings of Harris County, Tex.

Application October 27, 1936, Serial No. 107,791

5 Claims.

This invention relates to an internal combustion motor.

An object of the invention is to provide novel means for supplying the motive fluid to the motor cylinders.

Another object of the invention is to provide means of the character referred to whereby the motive fluid will be thoroughly broken up and vaporized and delivered in a highly combustible state into the motor cylinders.

It is another object of the invention to provide, in combination with an internal combustion, two cycle, motor an auxiliary compression drum or other receptacle connected with the combustion chambers of the motor, but not with the crankcase, and in which a portion of the pressure from said chambers is stored under compression, said drum being also connected into the fuel feed tank whereby pressure is applied to the fuel in said tank to effect the feeding of the fuel to the intake manifold, said drum being also connected with the carbureting device to the end that the fuel, as fed to carbureter, will be subjected to a blast of the hot compressed vapors delivered from the compression drum.

It is another object of the invention, to provide in an internal combustion, two cycle, motor, novel means for thoroughly scavenging the combustion chambers.

Another object is to provide a two cycle motor having means for readily controlling the speed of the motor and whereby fuel may be fed to the cylinders without dilution from the crankcase lubricants, and without loss of fuel.

With the above and other objects in view, the invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawings, wherein:

Figure 1 shows a plan view of the motor partly in section.

Figure 2 shows a cross sectional view taken on the line 2--2 of Figure 5.

Figure 3 shows a fragmentary sectional view taken on the line 3-3 of Figure 1.

Figure 4 shows a fragmentary end view of the motor showing the auxiliary supply tank and pressure drum.

Figure 5 shows a cross sectional view taken on the line 55 of Figure 1,, showing the piston in the beginning of the intake stroke.

Figure 6 shows a similar view, showing the piston in an intermediate position,

Figure 7 shows a fragmentary sectional view also taken on the line 5-5 of Figure 1.

Figure 8 shows a cross sectional view of the motor, showing the piston in intermediate position on power stroke, and

Figure 9 shows a cross sectional view of the motor showing the piston in intermediate position on intake stroke,

Referring now more particularly to the drawings wherein like numerals of reference designate similar parts in each of the figures, the numeral 1 designates the motor block as a whole having the cylinders 2, four of said cylinders being shown. The pistons 3 are mounted to reciprocate in the respective cylinders and are connected to the wrists A of the crank shaft 5 by means of the usual connecting rods 6. The motor is provided with intake manifolds l which are connected into the respective cylinders through the valve seats 8 which are controlled by the intake valves 9. The motor is also provided with the passageways l0 which are connected into the cylinders through the valve seats ll which are controlled by the valves 12. These valves 9 and I2 are operatively connected with the conventional cam shaft I3 and are so timed that fluid from the pressure drum will be discharged, under high pressure, to force charges of fuel into the respective cylinders after they have been scavenged and the air intake and exhaust ports thereof closed.

The numeral l4 designates an auxiliary fuel supply tank into which the motive fluid is fed from a main supply tank, not shown, through the supply pipe I5. A conventional pump may be employed for feeding the motive fluid into the auxiliary tank I4. 7

A delivery pipe [6 leads from the auxiliary supply tank and is connected into the valve casing I1 and this valve casing is connected to the cross connection l8 as more clearly shown in Figures 5 and 7. The connection l8 encloses a mixing chamber [9 and leading from the valve casing i! into this mixing chamber there is a tapering valve seat 20 which is controlled by the needle valve 2| having a threaded connection with the outer end of the casing I1 and has a surrounding stuffing box 22 as shown. A controlling arm 23 is attached to the upper end of the needle valve 2| as more clearly shown in Figure 1.

A manifold pipe 24 is connected into the intake manifolds l and leading from the cross l8 and connected into the manifold pipe 24 there is a tubular nipple 25 having a Venturi passageway 26 leading from the mixing chamber l9.

Adjacent the motor there is a pressure drum 21, one end of which is connected into the top of the auxiliary fuel tank l4 through the elbow 24 which contains a. suitable screening element 28. The passageways in are connected into the pressure tank 21 through the manifold pipes 44, 30 whereby a portion of the gases on the power stroke under pressure, may be conducted from the combustion chambers into the drum 2! to maintain the required pressure therein. The fuel in the auxiliary tank l4 will accordingly be subjected to the pressure contained in the tank 21 and will be thereby forced through the feed line I8 and through the valve seat 20 into the mixing chamber [9 and will pass thence through the Venturi passageway 26 into the manifold pipe 24 and thence to the cylinders after the air intake and exhaust ports, hereinafter referred to, are closed.

Leading from the pressure .drum 21 there is a nozzle pipe ll containing the screening element 32. This nozzle pipe terminates in the valve casing 33 in which the turnable valve 34 is seated. The upper end of the valve 34 has an overturned arm 35 which is connected with the arm 23 by means of the cross link 36 pivoted to said respective arms. Any suitable valve controlling device, accessible to the operator, may be employed for shifting the arm 35 and thereby controlling the valves 2| and 34. The outer end of the cross connection I8 is closed by the removable plug 31.

When the motor is stopped and the valves 2i, 34 are actuated to closed position, the pressure fluid in the drum 21 will be trapped and maintained under pressure, the valve 2| preventing the feed of the motive fluid from the tank i4. Upon starting the motor the valves 2 I, 34, should be actuated to open position to permit a resumption of the feed of the motive fluid. Should the pressure in the drum 21 be reduced on account of leakage, while the motor is idle, the pressure will be again restored in the drum 2'! while starting the motor, the pistons 3 acting as a pump for that purpose. As the motive fluid is fed through the mixing chamber I! it will be constantly subjected to a blast of the hot pressure vapor from the drum 21 through the connecting nipple 38, which connects the valve casing 33 with the inner end of the cross connection l8. This nipple 38 has a tapering nozzle passageway 39 therethrough and forms a blast nozzle whereby the pressure vapor will be discharged at high velocity into the mixing chamber is. The motive fuel will also be fed under pressure and the fuel vaporized in the chamber l9 will be forced through the Venturi passageway 26 and will thereby be further vaporized and will enter the intake manifold pipe 24 and be delivered into the motor cylinders in a highly combustible state and after the cylinders have been scavenged and filled with clean air.

A novel means for scavenging the cylinders has been provided. For this purpose the cylinders are provided with the oppositely arranged ports 40, 4| which are cleared by the corresponding pistons when they reach the limit of their back stroke as is indicated in dotted lines in Figure 9. The ports 40 are inclosedbyv a manifold 42 shown more clearly in Figure 2. A blowpipe 43 leads from the fan housing 44 and enters the manifold 42. A blow fan 45 is inclosed within the housing 44 and is operatively connected with and driven' by the motor. When the ports 40, 4| are cleared by the corresponding pistons a blast of air will be driven in through the corresponding port 40 and will strike against the deflector 44 on the inner end of the corresponding piston and will sweep around the corresponding cylinder and discharge through the opposing port 4| and the cylinders will thus be effectively scavenged and filled with clean air which will be trapped therein upon closing of the ports 40, 4|. Thereafter the fuel will be forced, under pressure, into the cylinders forming a very combustible and explosive mixture. The screens 29, 33 prevent the escape of carbon or other solid material from the tank 21 into the stream of motive fluid passing to the cylinders.

The drawings and description disclose what is now considered to be a preferred form of the invention, by way of illustration only, while the broad principle of the invention will be defined by the appended claims.

What I claim is:

l. A motor comprising a cylinder, a piston therein, a pressure drum, a conduit leading from the cylinder to the drum, fuel feeding means, an intake pipe leading from the fuel feeding means into the cylinder, valves controlling said conduit and pipe respectively, means for igniting a charge in the cylinder, a. conduit leading from the drum to said feeding means, means for controlling the valves whereby, upon firing of the charge in the cylinder, under power stroke, a portion of the pressure fluid will be expelled from the cylinder and be stored in the drum to maintain pressure therein and upon the beginning of the compression stroke fluid will be forced through said pipe from the drum to feed a charge of motive fluid into the cylinder.

2. A motor comprising a cylinder, a piston therein, a container for pressure fluid, said motor having a conduit leading from the cylinder to the container, fuel feeding means, means controlling the amount of fuel delivered to the cylinder, an intake pipe leading from the fuel feeding means into the cylinder through which the fuel is fed, a valve controlling said conduit, means for igniting a charge in the cylinder, means for opening said valve subsequent to the ignition of the charge to admit a portion of the pressure fluid expelled from the cylinder, upon power stroke, into the container to maintain pressure therein, a conduit leading from the container to said feeding means, a valve controlling said intake pipe, means for opening said last 1 mentioned valve, upon beginning of compression stroke, to admit fuel through the intake pipe from the container to feed a charge of motive fuel under pressure into the cylinder.

3. A motor comprising a cylinder having an air admission and an exhaust port, a piston in the cylinder arranged, at the end of power stroke, to clear said ports, a storage drum, said motor having a conduit leading from the cylinder to the drum, a pressure valve for controlling said conduit, fuel feeding means, an intake pipe leading from the fuel feeding means into the cylinder, an intake valve controlling said intake pipe, means for igniting a charge in the cylinder, a conduit leading from the drum to the feeding means, means for opening and closing said last mentioned conduit, means for opening the pressure valve upon firing of a charge in the cylinder, upon power stroke, whereby a portion of the fluid will be expelled from the cylinder and be stored in the drum to maintain pressure therein, means for opening said intake valve upon beginning of a compression stroke whereby the pressure of the fluid in the drum may be rendered efiective to deliver a charge into the cylinder.

4. A motor comprising a cylinder, a piston therein, a storage drum, said motor having a conduit leading from the cylinder to the drum, a valve controlling the conduit, fuel feeding means, an intake pipe leading from said feeding means into the cylinder, an intake valve controlling said intake pipe, means for igniting a charge in the cylinder, means for opening the first mentioned valve, subsequent to firing the charge in the cylinder, upon power stroke, whereby a portion of the pressure fluid will be expelled from the cylinder and be stored in the drum to maintain pressure therein, a conduit leading from the drum to the feeding means, means for opening the intake valve upon beginning of compression stroke to admit fluid under pressure from the drum, upon beginning of compression stroke, to feed a charge of motive fluid to the cylinder.

5. A motor comprising a cylinder, a piston therein, a pressure drum, a conduit leading from the cylinder to the drum, fuel feeding means, an intake pipe leading from the fuel feeding means into the cylinder, valves controlling said conduit and pipe respectively, a conduit leading from the drum to said feeding means, means for controlling the valves whereby upon firing of a charge in the cylinder, upon power stroke, a portion of the pressure fluid will be expelled from the cylinder andwill be stored in the drum to maintain pressure therein and; upon the beginning of the compression stroke, fluid will be forced through said pipe from the drum to feed a charge of motive fluid into the cylinder.

IVAN P. HARDIG.

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