US1401746A - Internal-combustion motor and fuel-feed therefor - Google Patents

Description

A. WINTON.

INTERNALCOMBUSTION MOTOR AND FUEL FEED THEREFOR.

. A PPLICATION FILED OCT. 16, 1916. 1,401,746. v E Patented Dee. 27, 1921,

2 SHEETS-SHEET I.

. A. WINTON. INTERNAL COMBUSTION MOTOR AND FU EI. FEED THEREFOR.

Patented Dec. 27,- 1921 MN QM m f w i;

NT OFF;

ALEXANDER WINTON, 01? LAKEWOOD, OHIO.

To all whom it may concern:

Be it known that I, ALEXANDER WINTON, citizen of the United States, residing at Lakewood, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Internal-Combustion Motors and Fuel-Feed Therefor, of which the following is a specification.

This invention relates to internal combustion motors and particularly to fuel feeding mechanism such as is shown in my copending application, Serial No. 5995, filedvFeb. 4, 1915, for internal combustion motors.

The present invention is for an improved type of cut-off utilized in the fuel supply and preferably actuated by the fuel pump and regulated by the governor for cutting off the supply of fuel on the intake stroke of the fuel pump and limiting such supply at that time to the desired charge. In the embodiment'shown the cut-off is in the nature of a slide valve which is circular and is provided with a supply port adapted to register withthe supply port leading to the pump, the time of movement of the supply port in the slide valve across the port leading to the fuel pump determining the volume of fuel passing to the pump on its intake stroke thus determining the amount of the charge.

The invention may be further briefly summarized as consisting in the construction and combination of parts hereinafter set forth in the following drawings, description and claims. I

Referring to the drawings Figure 1 is a side elevation of a portion of a multiple cylinder internal combustion motor provided with my device; Fig. 2 is an enlarged view of the fuel pump feeding mechanism showing the several fuel injecting devices; Fig. 3 is a sectional view showing the arrangement of the pump and its slide valve or cut-off and Fig. 4 is an enlarged detailed view showing the arrangement of the cut-off valve structure.

In the embodiment shown 1 represents the crank case of an internal combustion motor provided with a cylinder 2 having pistons not shown of any preferred construction. The engine isprovided with a suitable governor 3 having a grooved collar 4 adapted to actuate a governor lever 5 pivoted at 6 to the frame work of the engine. The governor lever 5 is connected to a downwardly extending rod 7 which in turn is connected to the Specification of Letters Patent.

INTERNAL-COMBUSTION MOTOR. AIN'D FUEL-FEED THEREFOR.

Patented Dec. 27, 192i.

Application filed October 16, 1916. Serial No. 125,978.

controlling device of the fuel injection mechanism as will appear.

The fuel injection mechanism comprises a hous ng 8 having a fuel supply manifold 9 provided with a pluralitv of supply ports 10 corresponding in number to the number of cylinders. These supply ports 10 register an leading to the several cut-ofl opemn s 12 arranged 1n a main pump and cut-off rame 13. All of these cut-ofi openings 12 communicate with a common source of fuel supply 14. The main pump and cut-oil frame. is provlded with a plurality of pump barrels 15, one for each cylinder, and these receive theseveral fuel injecting plungers 16 each of which is provided with a suitable stuffing box structure 17 and a cross head portion 18 aving a bearing in a cross head vguide 19. Each cross head is provided with a air of upwardly extending cars 20 space apart and both to engage within cars 21 of a fork forming a part of an eccentric strap 22 engaging an eccentric 23 upon an eccentric shaft 24. Passing through these ears 20 and 21 1s a pivot pin 21. Each of the pump barrels 15 is provided with a laterally extending port 25 leading 26 of the frame 13. 26 and the manifold portion 9 are a pluralltv of valve members 27 provided with suitable recesses forming seats for a plurality of inlet valves 28. Above the portion 26- are a plurality of valve members 29 having openlngs for receiving discharge valves 30.

he uppermost valve member is connected to the discharge pipe 31 leading to the-corresponding engine cylinder.

The shaft 24 is mounted in suitable bearings 32 in the housing and is driven by a suitable gear 33 meshing with the gear 34 of any suitable driven shaft erably the cam shaft 35. From the foregoing it will be seen that when the shaft 24 is rotated the several fuel injecting pump plungers will be reciprocated at the'proper out through a portion communicate with other supply ports 11 I Between this portion of the engine, preftime due to the fact that the eccentrics 23 are mechanism to be derality of individual cut off devices actuated and operated by the corresponding fuel injecting pumps and they are all regulated by a common regulating mechanism under the control of the governor and this mech-.

anism will now be described. I

Slidably mounted in each of the cut off openings 12 is a cut off valve rod 34 passing through a suitable stufling box structure 35 and pivotally connected at its upper end to a -out the extent of the several injecting devices and at its ends connected to cranks 42- secured to or formed integral with. an.

operating shaft 43. V r

. The-lower end of the cut off valve rod is bored to form a chamber 44 which extends for a short distance into the rod and communicates with a lateral port or cut-off opening 45 adapted to register with the opening 11 and permit the passage of fuel to the injecting pump at the proper time. In order to prevent leakage about the rod 34 and to insure a perfect closure 'of the port 11. against leakage of fuel into this port, suitable mechanism is provided for forcing this rod against the wall of the opening 12 about the port 11. This mechanism comprises a follower 46 slidably mounted in a suitable guide opening 47 and having a chamber 48 extending inwardly from one end for receiving a coiled spring 49 which thrusts against a suitable plug 50 threaded into the wall of the opening47. I

The foregoin description so far as the cut off mechanism is concerned has been confined to one separate device but it is obvious that there is one distinct and inclependent cut off rod and lever for each injecting pump. Secured to the shaft 43 outside of the housing is a controller actuating lever 51 pivotally connected to the downwardly'extending rod 7 in turn connected to the governor lever 5.

Fuel is supplied to the opening 14 through a supply pipe 52.

In operatlon, for example, it is assumed that fuel preferably under pressure is supplied to the supply pipe 52 and that the englue is operating at half speed with the governor set to regulate the cut-off mechanism at this pointand the description of the operation will beconfined to one complete injecting device which will suffice for all.

As the plunger 16moves upwardon its receiving stroke the lever 38 is moved in a clockwise direction about the crank rod 41 as a fulcrum. This causes the cut 0% valve memes and further supply of fuel to the pump barrel will be stopped, the plunger finishing its stroke and drawing a partial vacuum for that portion of the stroke. Any leakage from the supply to the opening or port 11 is prevented by the follower 46 which forces the cut off rod against the wall of the cutoff opening 12 about the opening or port 11. If the speed of the engine should drop or increase over that at which the governor is adjusted then the position of the crank rod 41, or in other words the fulcrumof the several levers 38, will be moved in proper manner to adjust the time of the cut off of the several out off devices to account for the variation in speed and will bring; the

engine back to its proper speed. It is ob vious that the crank rod may be'actuated by the governor as shown or ,by any other mechanism such as a hand controlled device. Having described my invention, I claim 1. In 'an internal combustion motor, a cylinder, a pistontherein, a fuel injecting .device for said cylinder having a capacity for a maximum charge and having a constant stroke, means in open communication with said fuel injecting device for supplying fuel in unmeasured quantity thereto, means actuated by said fuel injecting device for interrupting the fuel supply to said device on the suction stroke thereof for determining the volume of the charge, and a check valve mechanism in said supply.

2. In an internal combustion motor, a cylinder, a piston therein, a fuel injecting device for said cylinder having a capacity for a maximum charge and having a constant stroke, means in open communication with said fuel injecting device for supplying fuel in unmeasured quantity to said fuel injecting device, means actuated by said fuel inhaving a capacity for injecting a maximum charge and having a constant stroke, means in open communication with said fuel injecting device for supplying fuel in unmeasured quantity to said fuel injecting devices, independent means individual to each fuel injecting device for interrupting the fuel supply to each fuel injecting device on the sucmomma tion stroke thereof for determining the vol.- ume of the charge, mechanism for controlling the operation thereof, and a check valve in the-supply to each injecting device.

4. In an internal injecting device for each cylinder and each having a capacity for injecting a maximum 1 charge, means in open communication with the fuel -mg devices,

' said fuel injecting device for supplying fuel injecting device for each-cylinder and each.- a maximum charge cut off the supply of in unmeasured quantity to said fuel injecting devices, individual cut-61f mechanism for each fuel injecting device arranged" in the supply and comprising a cut off to positively the supply to each fuel injecting device, and mechanism for'operating said out offand actuatedduring the and by the corresponding fuel injecting means for interrupting the fuel supply-for determining the volume of the charge:

' Q6. In aninternal rality of cylinders, pistons therein, a fuel injecting device for each cylinder and each having a capacity for injecting a maximum charge, means in -'open'- communication with each fuel injecting device for supplying fuel in unmeasured quantity thereto, cut off mechanism comprising a cut ofi valve in the inlet of each injecting device, a check valve in the supply to'each fuel injecting device, a(:-

tuating levers therefor each connected at one point to its cutoff valve and at another to an operating part, a fulcrum for each lever, and means for varying the fulcrum point of said levers and thereby varying the time of cut off of said out 01f valves.

7;; In an internal combustion motor, a plurality of cylinders, pistons therein, a fuel avmg a capacity for and each having anintake stroke,means for 4 supplying fuel to all of said injecting devices in unmeasured quantity, operating mechanism for said devices, and cut off mechanism individual to the several devices,

and each comprising a casing connected to the supply and to combustion motor, a plu-v rality of cylinders, pistons therein, a fuel means individual to each fue in the volume of the charge, a in the supply to each fuel in-..

to the supply .governin the o eratin fuel,acheckvalvein.d p

suction stroke thereof JQCl'Jlilg device, a cut-off member or interrupting the passage of fuel to the corresponding fuel'injecting device, an operating lever connected to said cut off member and actuated .by the means for operating the corresponding fuel injecting device, and means for controlling the operation of said lever. I

8. In an internal combustion motor, a plurality of cylinders, pistons therein, fuel injecting devices each having a capacity for a maximum char e and each having an intake stroke, means for supplying fuel to all of said injecting devices in unmeasured quantitg, operating mechanism for said devices an cut off mechanism individual to each de-' vice and each comprising a casing connected injecting device, a cut off rod for interrupting'the passage of fuel to the corresponding .fuel injecting device, an operating lever connected to said cut off rod and actuated by the means for operating fuel injecting device, there being a lever for each fuel injecting device, a controlling-device engaging one end of each of said levers the correspondin fuel inand to the corresponding fuel the corresponding and changing its. fulcrum point thereby varying the time of cut off, and means for evice.

9. In an internal combustion inder, a piston therein, vice for said ciylinder'having a capacity for a maximum 0 arge and having "a constant stroke,

device for supplying fuel in unmeasured quantity thereto, means at:- tuated by said fuel injecting terrupting the fuel supply to the suction stroke thereof-for determinin the volume of the char 'and a plurality of check valves arranged in tandem in said supply. A f

I0. In an internal combustion motor, a plurality of cylinders, pistons therein, fuel injecting mechanism comprising a, fuel injecting device for each cylinder and each having a capacity for in ecting -ma ximum charge and having a constant stroke, means 1n open communication with each fuel inh s ALEXANDER WINTON.

of said controlling motor, a cyl-- a fuel injecting de-' means in open communication with said fuel injecting combustionmotor, a plu;

device for insaid device on

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