US1063490A

US1063490A - Liquid-fuel-oil-feeding governor for internal-combustion engines.

Info

Publication number: US1063490A
Application number: US62181811A
Authority: US
Inventors: James I Wood
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-04-18
Filing date: 1911-04-18
Publication date: 1913-06-03
Anticipated expiration: 1930-06-03

Description

' "J. 1. woon. A LIQUID FUEL OIL FEEDING GOVERNOR POR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED APB..18, 1911.

- Patented June 3, 1918.

UNrrED srArEs PATENT oFFIcE.

JAMES I., WOOD, OF DENVER, COLORADO.

LIQUID-FUELTOIL-FEEDING GOVERNOR FOR INTERNAL-COMBUSTION ENGINES.

1,ocs,49o.

To all whom it may concern Be it known that I, JAMES I. VVooD, a citizen of the United States of America, residing in the city and county of DenverI and State of Colorado, have invented a new and useful Liquid-FuelOilFeeding Governor for Internal-Combustion Engines, of which the following is a specification.

.My invention relates to improvements in governors for controlling the liquid fuel oil feeding force pumps of internal combustion engines; and the objects of my invention are: first, to provide an automatic liquid fuel feeding governing mechanism for internal combustion engines, and second, to provide a governing mechanism for the pumping apparatus of internal combustion engines, that will impart a variable stroke to the pump and thus feed a variable amount of liquid fuel oil to the combustion end of internal combustion engines. I attain these objects by the mechanism illustrated in the accompanying drawings, in which:

Figure 1, is a side view, partly in section, of an internal combustion engine, showing the improved fuel feed governor applied thereto. Fig. 2, isa horizontal sectional view through the fly wheel and eccentric, the section of the latter being taken lengthwise of its guide slot. Fig. 3, is a plan view of the fly wheeLshoWing the eccentric thereon in section, the section being taken transversely of its guide slot. Fig. 4, is a perspective view of the hub portion 'of the fly wheel, showing the squared end of the hub which receives the eccentric, and Fig. 5, is a perspective view of the eccentric.

Similar letters of reference refer tc similar parts throughout the several views.

Referring to the drawings, the numeral l designates thefoundation bed of an internal combustion engine. 2 designates its cylinder, and 8 its crank case, which is illustrated removably secured to the cylinder by cap screws 3A, but which may be cast in tegral with it, 1f desired. This crank caseis provided with an air inlet valve 3B. The cylinder is provided witha ycylinder head 4, that is secured to it by cap screws 5 or other suitable means. This cylinder head is provided with a rearwardly projecting hemispherical centralpcrtion G, in which a hemispherical block 7;, whichI term the oil vaporizing and ignition block, extends. This block is providedin its periphery with semi- Specification of Letters Patent.

Application led April 18, 191,1. Serial No. 621,818.

Patented June 3,1913.

circular explosionchambers 8, Whichextend at right angles to each other, and` their ends open directly into the cylinder. The cylinder 2 is also provided with a pistonv head 9, which is reciprocally mounted therein',and to which one end of a connecting rodll-is pivotally connected. The opposlte end of this rod 10 extends into the crank case and is operatively connected to a crank shaft 11, which extends through and beyond the crank case, and `one end isprovided with a fly Wheel 12, that is provided with a projecting hub 13. The cylinder is provided with a water jacket 14, having inlet and outlet pipes y15 and 16 arranged to permit a supply of cold Water under pressure to circulate around the cylinder. The hemispherical block is secured in the cylinder head by screws 17, or other suitable means, and the cylinder head is provided With an oil inlet aperture 18, that is arranged to admit oil .directly into the explosion chambers of the block 7, and to which one end of a liquid fuel oil supplying pipe 19 is secured, the opposite end of which extends and is connected to the 4discharge outlet 2O of a force pump 21. vThis force pump 21 is mounted on the side of the cylinder and is provided with a, suction supply pipe 22, which extends from its suction `inlet 23 to a supply of any suitable liquid fuel oil eX- cept gasolene, such as kerosene or distillate. This supply of oil may be confined in a tank portion formed in the'foundation bed,Y and to which the suction or supply pipe of the pump is extended.

The force pump is provided with a piston or pump rodl 24, which is reciprocally supported along the side of the cylinder in a bracket 25 that is secured to the side of the cylinder. This piston rod extends through this bracket and beyond it alongside ofthe adjacent fly wheel, to within a short distance of the hub 13 of the fly wheel, and to the crank shaft, and at its outer end itis pro* vided with yan `anti-friction shoe 27 which is adapted to bear with a resilient pressure against the .peripheral face ofy an eccentric disk 28, which is mounted on the hub of the adjacent fly wheel. The resilient pressure of the shoe against the disk is imparted to it by aY coiled expansive spring 29, that is mounted on the piston rod of the pump and abuts with one of its ends against the bracket, and with its opposite end against l 2.0 'a cap screw 35. The hub 13 is provided the collar 30, that is secured to the piston rod of the pump, and thus holds the shoe with a resilient engaging pressure against the peripheral face of the eccentric disk.

The liquid fuel oil pumping action of the reciprocal movements of the piston rod is regulated to control the feeding of the supply of oil into the cylinder head and onto the ignition block, as required by the varying speeds of the engine to maintain a continuous practical variable load carrying speed by means of a governing mechanism, of which the eccentric disk 28 forms an essential part. This governing mechanism comprises, in addition to the eccentric disk 28 a link 31 and a lever 32, on which a weight 33 is slidably mounted and is adjustl ably secured by a screw 34. The lever 32 is pivotally connected intermediately .of its ends to one of the spokes of the Hy wheel by with a reduced Hattened and parallel sided guideway portion 36, and the eccentric disk is provided with an oblong slot 36A in its Hange portion 37, which lits slidably and reciprocally on the Hattened hub portion of the Hy wheel. A retaining plate 37A fits over the crank shaft and lits against the end -of the hub of the Hy wheel, and is secured there by cap screws 38, in diametrical alinement with the slot. This plate extends over the slot 36A and holds the disk on the Hattened guideway of the hub. The eccentric disk 28 1s normally held yieldingly in eccentric re lation to the crank 'shaft by means of a coiled spring'29, which is arranged between .the hub of'the Hy Wheel and the end of the slot that is farthest from the axial center of the disk, against which it abuts with an expansive tension, and thus holds the eccentric disk under a resilient tension at the limit of its eccentric throw. The link 31 is pivotally secured at one end to the disk adjacent to its slot 36A,/and between this slot and the peripheral face of the disk, and its opposite end extends outwardly from the disk and is pivotally secured to the opposite end of the weighted lever farthest from its adjustable weight. The lever 32 being pivotally connected to the Hy wheel, is arranged to lie in the plane of the Hy wheels rotary movement, and it normally acts through the medium of its weight, which is thrown outwardly bythe centrifugal force of the rotary movement of the Hy wheel to move the eccentric disk back against its expansive pressure spring; and consequently decreases :the throw of the'eccentric to the extent of its' outward throw movement; and the pef ripheral face of thisdisk being arranged to receive the resilient bearing contact pressure of the shoe 27 through the mediul fof the spring 29, a variable eccentric throw movement is imparted to the eccentric disk and a variable reciprocal movement is im- `limit of its eccentric throw,

parted by the eccentric disk to the shoe 27 and the pump piston rod 24:, which variable reciprocal movement of the pump piston rod automatically varies the feed of the liquid fuel oil from the force pump into the cylinder head and onto the vaporizing and igniting block.

The operation is as follows: Vhen the speed of the engine increases beyond the regular speerl at which the engine is set to run, the centrifugal force of the rotary movement throws the weighted lever outward and`consequently moves the eccentric disk inward against' its spring 29A and toward the axial center of the crank shaft, which movement decreases the reciprocal stroke of the piston rod of the pump and lessens the amount of the charges of oil fed to the explosion cylinder.` head; while should the speed of the engine decrease below the speed at which the engine is set to run, the amount of the outward throw movement of the .weighted lever will be decreased, and the eccentric disk will slide outward on its guideway on the hub under the inHuence of its expansive spring, which will increase the throw -of the eccentric disk and the reciprocal stroke of the piston rod of the pump and increase the quantity of the oil fed into the explosive cylinder head, until the speed of the engine is increased to its normal predetermined speed.

My invention is simple and makes a sensitive and accurately operating governor; and while I have illustrated and described the preferred construction of my invention, I do not wish to be limited to the construction shown, as many changes might be made Without departing from the spirit of my invention and the scope of the appended claims.

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

1. In an automatic governing mechanism for `internal combustion engines, the combination with a cylinder, the piston, its coperating crank shaft and Hy wheels, and the pump and its pump rod and coperating mechanism secured to the side of said cylinder, one of the said Hy wheels being provided with a flattened reduced hub portion, of an eccentric disk provided with an oblong slot slidably mounted on the Hattened reduced portion of said Hy wheel, an expansive spring between the end of said elongated aperture and the hub of said Hy Wheel, arranged to normally hold said disk at the a link pivotally secured at one end to said disk, a lever pivotally secured intermediate of its ends to one of the spokes of said Hy Wheel, and pivotally secured at is opposite end to the opposite ends of said mounted on and adjustably secured to said link, and a weight slidably slot in its bottom and slidably mounted on said hub portion, means for yieldingly maintaining the cylinder in its eccentric position,

a Weighted member pivotally mounted on said fly-Wheel and adapted as moved by centrifugal force to move said eccentric against the action of said yielding means, and a fuel :pump controlled by said eccentric.

3. In a governing mechanism for internal combustion engines, a fly-Wheel having a flattened reduced hub portion, a shallow cylinder having a rectangular Slot in its bottom and slidably mounted on said hub portion, a spring for yieldingly maintaining the cylmder in an eccentric position, a removable plate for securing the eccentric to said hub portion in its slidable relation, a weighted member pivotally mounted on said fly-wheel and adapted as moved by centrifugal force to move said eccentric against the action of said spring, and a fuel pump controlled by said eccentric.

In testimony whereof I aiiiX my signature in presence of two Witnesses.

JAMES I. WOOD;

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of latenti.

. Washington, D. C.