US634679A - Gasolene-engine. - Google Patents

Description

no. 634,679. Patented Oct. I0, [899.

c. 0. WHITE. GASOLENE ENGINE.

(Application filed In. 1'7, 189 8.) (No lo ei.) 2 Sheets-Sheet [Vi/messes.

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Np. 634,679. Patented Oct. :0, I899. c. 0. WHITE,

sAsnLEnt- ENGINE.

(A pucimn flhd Mar. 17, 11398.;

(No Model.)

2 Sheets-Sheet 2,

1 frzuenfbn ITED STATES? PATENT OFFICE.

CLARENCE 0. WHITE, orMinNEAPoLIs', MINNESOTA.

GASOLENE-ENGINE.

srncrsrcirrion forming part of Letters Patent No. 634,679, dated October 1899.

Q application filed March 17, 1898.

' ofthe city of Minneapolis, county of Hennepin, State oflVIinnesota, have invented certain new and useful Improvements in Gasolene Engines, of which the following is a specification.

My invention relates to gasolene-engines, and particularly to engines of the Otto cycle type. j

The objects of the invention are to improve the construction and operation of gasengines, tolighten and to cheapen the same, and particularly to improve the means of ignition, and also the means for controlling the admission of vapor to the cylinder and the exhaust therefrom, and, further, to provide means for regulating or adjusting the compression of the vapor or gases in the cylinder.

The invention consists generallyin a gasolene-engine comprising a' cylinder, piston, crank-shaft, &c., said'cylinder having. inlet and exhaust ports, in combination with an inlet-valve, a governor driven from the crank shaft,valve-controlling levers, and a trippingdog operating in. connection therewith and adapted to be withheld by said governor to permit or prevent the entrance of gases or vapor to the cylinder; and, further, the inventionconsists in various constructions and in combinations of parts, all as hereinafter described, and particularly pointed out in the claims.

The invention will be more readily understood by reference to the accompanying drawings, forming part of this specification, and in which- I Figure 1 is a side elevationv of a gasoleneengine embodying my invention. Fig. 2 is a sectional view thereof on the line y y of Fig. 1. Fig. 3 is' a detail of the side of the engine, showing the tripping-dog device in another position. Fig. 4: is a side and sectional view substantially on the line 2 e of Fig. '2. Fig. 5 is an enlarged detail view of the governor and tripping device. Fig; 6 is a detail taken froni'Fig, 5. Fig. 7 is a detail section on line wazofFigo. g

As shown in the drawings, 2 represents the base of the engine; 3, the cylinder; at, the cylinder-head; 5,the connecting-rod; 6,the crankshaft, and 7 the belt or fly wheel. The inlet Serial No. 674,163. (No model.)

and exhaust ports 8 and 9 of the engine (see Fig. 5) are covered by the chests or boxes 10 and 11, respectively. The chest 10 is provided with the mixing tube or chamber 12, depending therefrom and containing the valve 13 at its upper end. A weighted resistancevalve may be provided in the lower end of the mixing-tube 12, and the vapor or oil duct enters between the two valves, the oil being sucked or drawn from the vaporizer-reservoir 14, the detail construction of which is not important to this application and is fully shown and described in my pending application, Serial No. 669,912, filed February 11, 1898. On the stem 15 of the valve 13 is the collar or cross-arm 16 to be engaged by the short arm 17, projecting from the small shaft 18, that extends through the walls of the mixing tube or chamber 12. To the outer end of the shaft 18 is connected an arm 19, and this in turn is connected by the light rod 20 to the swinging arm 21 on the rock-shaft 22. This rock-shaft is allowed to move only'when an explosion is required, and when the same reton being moved by the momentum of the flywheel gathered from prior explosions. To thus control the operation of the valve 13, and hence the number of explosions in the cylinder, I employ the free-rocking bell-crank 23,

loosely journaled on the end of the rocking shaft 22 and constantly actuated through the mechanism of the speed-reducing gears 2a 25 and the connecting-rod 26, extending from a crank-pin on the side of'the larger gear-wheel 25. This gear-wheel is journaled on the-stubshaft extending from the side of the enginebase. The bell-crank has its other arm connected to the plunger 27 of the gasolenepump 28, which pump is thus operated at every stroke of the piston to force small quantities of gasolene 'throughthe pipe29 into the small overflow-reservoir 14, from which the surplus of gasolene returns to theniain sup: ply-pipe 30 through the overflow-pipe 31. Now the connection between the free-moving arm 23 and, the real valve-actuating arm 21 is made by means of the pivoted dog 32, that is pivoted on the small stub-shaft no, projecting from the inner side of the arm 23. This dog is adapted to drop over the end of the arm 21 and,locking there0n,will draw the arm 21 forward with the arm 23,thereby throwing up the restraining-arm 17 belonging to the valve 13 and permitting said valve 13 to open and let a new charge of vapor into the cylinder. 23 the arm 21 is forced back to its original position by the engagement of flanges or ribs 34 and 35 upon said arms 21 and 23. (See detail Fig. 7,) The locking operation of the tripping-dog is controlled by means of a small governor 36, driven by a belt 37, extending from the crank-shaft, or a pulley that rotates with the gear 25. This governor is provided with the stem 38, that extends below its bearing, and when the governor-balls are raised by too rapid rotation this stem will be forced down into the path of a wing or lug 39, that is provided upon the sleeve of which the dog 32 forms an integral part, the dog and this lug comprising a bell-crank: pivoted on the stub-shaft that extends from the arm 23. As illustrated by dotted lines in Fig. 5, the de pression of the governor-spindle into the path of the lug 39 causes an engagement between said parts only during the final backward movement of the arm 23,and the dog is lifted and prevented from engaging with the end of the valve-working arm 21, with the result that the arm 23 will start back upon its forward stroke without carrying the arm 21 with it, said arm remaining in the position shown in full lines in Figs. 1, 5, and 6, and thus closing the entrance or inlet valve. When the stem of the governor is lifted by the depres- .sion of the balls, the lug 39 will pass beneath the end of the stem and the hook of the dog will drop over the end of the arm 21. The

I downward movement of the dog 32 is limited by the engagement of the dog with a shoulder or stop provided on the inner side of the arm 23.

In connection with the rocking shaft 22 I provide means to hold open the exhaust-valve during the time that the inlet valve is closed, except at moments when explosions occur. This device comprises a stop arm or dog 40, arranged at the end of the rocking shaft'22 and adaptedto open the exhaust-valve and to stand in the path of the lower end of the lever 41, that is connected with the exhaustvalve 42, the arm 40 standing in such position when the arm 21 is left by the arm 23 in its forward'strokethat is, when the arm 21 remains in the position shown in Figs. 1 and 3. The result is that there is no compression of gases in the cylinder to impede the free rotation of the fly-Wheel and the movement of the piston. On the other hand, the moment that the arm 21 is engaged by the dog and moves forward then the rocking shaft is rotated to carry the arm 40 out of the path of the lower end of the lever 41, and the exhaust-valve is automaticall Y closed b the s irin 45 u on d d h l a p Upon the return stroke of the arm the valve stem or rod, so that none of the fresh gases are allowed to escape through the exhaust-port.

It will be evident from the foregoing that my engine possesses a number of advantages over those now upon the market. One advantage to be named is the absolute and accurate control of the supply of vapor for the cylinder and the cutting off of surplus explosions. Further, all of the working parts of the engine except the piston are exposed and can be gotten at readily.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. In an explosion-engine, the combination, of the cylinder, with the inlet-valve therefor, the valve-locking means locking said valve to prevent the entrance of gas to the cylinder, a constantly-driven actuating mechanism operative upon thelocking mechanism or means, and a governor controlling the operative con nection between said actuating mechanism and the locking mechanism, substantially as described.

2. In an explosion-engine, the combination, With the cylinder and the piston, of an inletvalve controlling the entrance of gas to said cylinder, a locking mechanism in connection with said valve, a constantly positively and uniformly driven dog or pawl adapted to engage and operate said locking mechanism alternately to liberate and lock said valve, and a governor adapted to engage said dog or pawl and prevent the engagement thereof with said locking mechanism, whereby the opening of said valve is prevented, substantially as described.

3. The combination,in an ex plosion-engine,

of the cylinder provided with inlet and exhaust ports having independent valves, with a common locking mechanism adapted to prevent the opening of the inlet-valve and prevent the closing of the exhaust-valve, and a valves, with a mechanism normally locking said valves in closed and open positions, respectively, a constantly and uniformly driven dog or pawl adapted to engage and operate said locking mechanism to free said valves, and a governor adapted to prevent the operative engagement of said dog upon said looking mechanism, substantially as described.

5. The combination,in an explosion-engine, of the cylinder having an inlet opening or port, with a valve in said inlet opening or port, the rocking arm and connections for locking said valve, the constantly-driven arm, the pivoted dog carried thereby' and adapted to engage said rocking arm, and the driven governor mechanism to engage said dog and withhold the same from said rocking arm to prevent the.

crank-shaft, with the inlet-valve, the rockingarm 21 connected with said valve, the driven arm 23, means for operating the same from said crank-shaft, the pivoted dog or catch carried by said arm 23 to engage said arm 21 and lock the same to the arm 23, and the governor driven from said crank-shaft and having a stem, which, when depressed, preven ts the engagement of said dog with said lever 21, substantially as described.

.7. The combination,in an explosion-engine, of the cylinder, the piston, the connecting-rod and the crank-shaft, with the mixing-chamher and the inlet-valve, the vaporizer, the pump connected to said vaporizer, the rocking arm or lever 23 driven from said shaft and wherefrom said pump is actuated, the rocking arm 21 having a locking connection with said valve, the dog carried by said arm 23 to g Y O engage said arm 21, and the governor driven from said crank-shaft and having a stem adapted to be engaged by said dog and preventing the engagement of the dog with said arm 21, whereby said inlet-valve is held shut, as and for the purpose specified.

8. The combination,in an explosion-engine, of the engine-base, the cylinder, the piston, the connecting-rod, and the crank-shaft, with theinlet and exhaust valves, the rocking shaft operatively connected with said inlet and exhaust valves, respectively, the constantlydriven rocking arm or lever 23, carrying a pawl or dog normally engaged with said arm CLARENCE 0. WHITE.

In presence of- O. G. HAWLEY, M. E. GOOLEY.

21, and the constantly-driven governor adapt- 22, the arms 21 and 40 upon said shaft and I

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