US511651A - roots - Google Patents

Description

(No Model.) 2 sheets-sheet 1.

J. ROOTS. PETROLEUM 0E vLIQUID EYDEOGAEEON ENGINE..

No. 511,651. l Patented Deo. 26,1893.

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J. ROOTS. PETROLEUM 0R LIQUID HYDROGARBON ENGINE.

No. 511,651. Patented Deo. 26, 1893.

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JAMES ROOTS, OF LONDON, ENGLAND.

PETROLEUM OR LIQUIDHYDROCARBON ENGINE.

SPECIFICATION forming part of Letters Patent No. 511,651, dated December 26, 1893.

Application filed July 24, 1893. Serial No. 481,300. (No model.) Patented in England November 7,1S91,No. 19,275; in France September 12,1892,No.224,291; iu Belgium October 3,1892,No.101,588,audin Italy November 30, 1892, XXVII, 33,075,

LXV, 62.

To all whom t may concern:

Be it known that LJAMES ROOTS, a subject of the Queen of Great Britain, and a resident of I-Iolborn Place, 261 High'I-lolborn, London, England,haveinvented certain new and useful Improvements in Petroleum or Liquid-Hydrocarbon Engines, (patented in Great Britain, No.19,275, dated November 7, 1891; in France, No. 224,291, dated September 12,1892; in Belgium, No. 101,588, dated October 3, 1892,*and 1n Italy, Vol. XXVII, No. 33,075, VOLLXV, No. 62, dated November 30, 1892,) of which the following is a specification.

This invention consists in the features of construction and novel combinations of parts 1n a petroleum or liquid hydrocarbon engine as hereinafter described and claimed.

Figure 1, is an elevation and part section showing the parts as arranged. Fig. 2, is an end elevation and part section of the same. Flg.. 3, 1s a vertical section of the ignition tube casing which forms the air heater and vaporizer. Fig. L1, shows cross sections of Fig. 3 on lines a, b; c, d; and @,f. Fig. 5, is a view ou a larger scale of the oil feeder and groove or grooves. Fig. 6, is a diagram for the purpose of more clearly showing the action of the inventipn, the arrows indicating the passage of the air or oil and air. Fig. 7 is a detail view of the clutch or hook governing the oil feed. The oil flows from the reservoir A when the stop cock is opened to the feeder B within which is fitted the rod plunger B provided with the groove or grooves B9. The rod or plungerB is thrust in by thelever O the other end o f which is connected by a slotted link C', Fig. 1, to the reciprocating side shaft D operated in the usual manner to open the exhaust valve D. The spring O2 which is fixed to a stationary pin fixed in the side of the cylinder returns the lever O which pulls out the grooved plunger B.

B3 is the oil space and B" the air channel into which the oil is delivered by the groove B2. E Figs. 3 and 1 is the ignitor tube casing. Air only passes through the lower channels E of the ignition tube casing E and air and oil through the upper channel E2 only.

Alternate portions of the dividing ribs as shown in Figs. 3 and 4 are cut away to form a port so that the air traverses the Whole of the channels successively, half the air passing round one side and half on theother of the same channel, the two currents of air meeting at the next port or part cutaway E3, and traversing in the same way the next channel.

E4 Figs. 1, 3 and (5, is a casing or cover placed over the top of the channel E2 to retain more of the heat of the flame by preventing radiation and deflecting the llame over the top of E2.

F is the ignition tube kept hot by the flame from the burner G.

F is a loose tube or casing carrying au asbestus lining fitting within E having` a hole or port F2 in it through which the fiame is directed from the burner G. The object of F is to enable a new ignition tubeto be readily screwed in without taking off the casing E. F slides up Within E and enables a pair of pliers to be used upon the tube F.

H is the governor driven by a strap from the crank shaft by the pulleys H and H2 or by any other convenient method. Vhen the speed becomes excessive the centrifugal action of the governor pullsthe valve spindlel and closes thevalve in the valve box Jthus cutting olf the mixture of oil and air. The other end of the Valve spindle I is provided With a collar, which passes through the small rod K pivoted at one end and provided Wit-h a hook or clutch at the other. The clutch or hook is pulled forward at excess speed simultaneously with the closing of the valve Iand prevents the outward or normal movement of the lever O and the plunger B by means of-the spring O2. This is shown on a larger scale at Fig. 7.

Fig. G is a diagram for the purpose of showing the working of the invention butin which the parts are not in their exact relative positions in order to render the working more clear, the arrows indicating the direction of the air and working charge. a channel Z preferably cast in the cylinder cover Y and passing into the tube Z enters the lower channel of the casing E and thence through all the channels E. It then passes through the pipe X to the air space B4 in the The air enters 9 IOO feeder B, the groove B2 delivering` its feed of oil into the air. space during the suction stroke by means of the spring C2 shown in Fig. l. The air sweeps off the charge of oil and both together then pass through the pipe X to the top or vaporizing channel E2 a portion of which may be fitted With a piece of gauze as shown 4at Fig. 4. A piece of gauze not shown may also be tted in B4 under the groove to 1o receive the oil. The air and oil together heated and mixed in E2 pass through the pipe X2 to the valve box J When if the valve I be open the mixture passes by the pipe J and by the admission valve L to the explosion channel I5 M and by the port N into the cylinder. Af-

ter the engine has been running fora short time the two Way valve W' is opened by hand, and heated air passes through the channels Z in the cover, then by the pipe W through zo the valve IV as shown to further dilute the oil. and air mixture passing into the valve box J by the pipe X2. The valve W may be turned so that half heated and half unheated airis permitted to ioW through W. Only z5 one valve is shown on the valve spindle I but in larger engines a second valve is fitted on the same spindle to balance the resistance to the action of the governor. On the return stroke of the piston the charge is compressed 3o into the hot tube F and tired.

A2 is an air pipe for conveying away the air displaced from the oil groove in the feeder B, but which is notnecessary if the pipe A be large enough to readily convey the dis- 3 5 placed air to the oil reservoir.

In Fig. l is shown the condensing space or chamber P in the pist-on to which is vattached the small cooling chamber P connected by pipe With it. The cooling chamber P is 4o closed on all sides and provided with thin Walls. Being arranged to move with the piston, in and out, in contact with the air it is kept cool and thus condenses the vapors in the communicating chamber.

P2 is the pipe in dotted lines Which When connected with the admission channel may be used to draw the uneondensed vapor from the piston space I. i

ItWill be observed in the oil feeder Fig. 5 that 5o the construction is such that neither gland nor any packing is required and yet there is no leakage. In the only Working part Where there could be leakage t. e. the outside guide of the plunger B there is a tendency for air 5 5 to be drawn through during the suction stroke.

. ters Patent, is-

What I claim, and desire to secure by Letl. In an oil -engine, the combination with the ignitor F, and burner G, of the air and oil heater E, having partitions provided with intercepting channels E', for air and With channels E2, for oil and air, substantially as Shown and described.

2. In an oil engine, the combination with the oil reservoir A, and the air and oil heater E, of the oil feeder B having oil chamber B3 and air chamber B4, the pipe A through which the oil reservoir and oil feeder communicate the grooved plunger B', and tubes through which the 'oil feeder communicates With the oil and air heaters, substantially as described.

3. In an oil engine, the combination with the cylinder and its exhaust valve D', of the oil feeder B provided with plunger B', the lever O provided with a central fulcrum and having its ends connected With said plunger and exhaust valve, and means for actuating said lever, substantially as described.

.4. In an oil engine, the combination with the ignition tube F, the casing E, and the burner G, of the asbestus lined tube F surrounding the ignition tube and provided With an opening F2 opposite the burner, substantially as described.

5. In an oil engine, the combination of the casing E having channels E', E2, the cylinder cover Y provided With air channels Z, the tube Z leading from the'channel Z to the air channels E of the casing E, the valve box J provided With valve I, the` oil feeder B having tubes X, X connecting with the casing E, the pipe J leading from the valve box J to the lower part of the casing E, the ignitor F and the valves W and L,'substantially as described.

6.- In an oil engine, the combination with the cylinder and piston, of the condenser P and closed cooling chamber P carried by the piston and communicating with each other, substantially as described.

In Witness whereof I have hereto set my hand this 20th day of June, 1893.

JAMES ROOTS.

In presence of- A RIcHARDfCoRE GARDNER, Patent Agent, 166 Fleet Street, L0ndon,Eng-

Zand.

MARTIN BROWN, l London Street, Fulham, England.

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