US623567A

US623567A - secor

Info

Publication number: US623567A
Authority: US
Publication date: 1899-04-25
Anticipated expiration: 1916-04-25

Description

No. 623,567. Patented Apr. 25, I899.

.l. A; $5003. SPEED REGULATOR FUR EXPLOSIVE ENGINES.

(Application filed Oqt. '7, 1897.)

(No Model.) 2 Sheets-Sheet I.

Q J IIIL I Patented Apr. 25, I899.

J A SECOFL SPEED REGULATOR FOR EXPLOSIVE ENGINES.

(Application filed Oct. 7, 1897,)

2 Sheats-$heat 2.

(No Model.)

m: NORRiS PETERS 00. PNO'IO-LIHQ, wxsmuumn. q. Q

UNrrnp STATES PATENT @rrtcn- JOHN A. SEOOR, OF NEW YORK, N. Y.

SPEED-REGULATOR FOR EXPLOSlVE-ENGINES.

SPECIFICATION forming part of Letters Patent No. 623,567, dated April 25, 1899. Application filed October '7, 1897. Serial No. 654,349. (No model.)

To all whom it may concern:

Be it known that I, JOHN A. SECOR, a citizen of the United States, residing in the city of New York, (llrooklym) in the county of Kings and State of New York, have invented certain new and useful Improvements in Explosive-Engines, of which the following is a specification, reference being bad to the accompanyingdrawings, formingapart thereof.

This invention relates to engines of that class in which the propulsive force is derived from the explosion of a hydrocarbon gas or gaseous mixture in rear of the piston, and

more especially to engines in which a gas or vapor and air are mingled in suitable proportions and the mixture is then introduced into the cylinder or explosion-chamber. In such engines it has been proposed heretofore instead of shutting off altogether the supply of explosive mixture when the engine is run-.

ning too fast to reducethe supply of gas and of air proportionately, so that asmaller quantity of explosive mixture shall be formed and the force of the explosion reduced accordingly.

It is the object of my present invention to improve the means for regulating the supply of hydrocarbon and air, and especially with a view to permitting the proportions of hydrocarbon and air to be varied at will, even while applied, the driving or crank shaft being shown in section. Fig. 2 is a detail view on a larger scale, showing the governing mechanism in end view and its connections to the valves. Fig. 3 is a side elevation of the governing mechanism. Fig. 4 is an elevation of the valve-boxes and a portion of the valveactuating mechanism as seen fromthe right in Figs. 1 and 2. Fig. 5 is an elevation of the same as seen from the right in Fig. 4, and

'upon the bed-plate or pedestal A, while the cylinderE is supported bystandardsD above the crank-shaft, to which the piston (not shown) is connected by a piston-rod F, as usual. The inlet and exhaust ports (represented at h and h) may be controlled,as usual, by valves which may be operated by any suitable means, such as the links i levers i and grooved gear I, which is engaged and driven by a pinion on the crank-shaft. The hydrocarbon, in this particular instance in the form of vapor and air, is delivered to the inletport h through independent valve-boxes M and M, with a valve m in each to control the corresponding port m. These valves are operated together under the influence of the governing mechanism to vary the quantity of the explosive mixture according to the speed of the engine, and each is adjustable independently of the other in order to permit the quality of the mixture to be varied as circumstances may require. Various arrangements might be devised for permitting the simultaneous operation and the independent adjustability of the valves, but I prefer that shown in the drawings, in which each valve is a rotary oscillating valve mounted rigidly upon a shaft or stem m which has bearings in the ends of the valve-box. Outside of the valve-box each stem m has fixed thereto a toothed sector m -An arm m is mounted loosely upon each stem and carries a worm m, which engages the corresponding sector,

so that by rotation of the worm the position of the sector m and consequently the position of the valve m, with respect to the arm m can be varied at will, thereby-varying also I the position of the valve with respect to the port m, so that the valve shall open more or less during its oscillation and shall vary the proportion of air or gas accordingly. The

free ends of the two arms at are connected by a link m and are shifted simultaneously through suitable intermediate devices, presently to be described, bythe action of the governor.

It will be obvious that so far as the action of the valves is concerned any form of governor mechanism which is adapted for the purpose may be employed, but I prefer that shown in Figs. 2 and As there represented, the entire governor mechanism is mounted upon asleeve N, which is secured to the crankshaft C to rotate therewith. At one end of the sleeve N is a flange 71, upon which are mounted the weighted bell cranks '72 the weighted arms of said bell-cranks being held normally toward the axis of the shaft by springs n which may be provided with adjusting devices '21.. The other arms of the bell-cranks engage a second sleeve n, which is movable longitudinally upon the sleeve N and is grooved to be engaged by a forked or other lever 915", which is pivoted upon a suitable support. The outer end of the lever a is connected to one arm of a bell-crank 92, the otherarm of which is connected by an adjustable rod 217 with the link m above referred to. It will be obvious that when the speed of the engine increases, so as to throw out-ward the weighted arms of the bell-cranks 71 the sleeve 21 will be shifted longitudinally and through the described connections, or other equivalent connections which maybe substit'uled therefor, will shift the valves m to reduce simultaneously the area of the ports through which the hydrocarbon and air escape into the mixing-chamber, so that the quantity of the explosive mixture will be varied without varying the proportion of the hydrocarbon and air.

In order that the hydrocarbon and air may be thoroughly mixed before they pass into the explosion-chamber or cylinder, I have provided a mixer, as at 0, through which the hydrocarbon and air must pass from the valveport 171/ to the explosion-chamber. This consists merely of a shell within which are concentrically mounted upon suitable bearings two oppositely-disposed fan-wheels 0 and 0. These are so light that they are rotated by the passage of the gas and air through the shells, and as they rotate in opposite directions they insure the thorough mixing of the gas and air.

It will be obvious that various changes might be made in the form and arrangement of the parts herein referred to without departing from the spirit of my invention, and

therefore it is to be understood that I do not intend to limit the invention to the precise construction and arrangement shown.

I claim as my invention- In an explosive-engine, the combination of independent, rotary oscillating valves for admission of hydrocarbon and air separately, toothed sectors secured to the stems of said valves respectively, arms mounted loosely on said stems respectively, worms carried by said arms to engage said sectors respectively, a link connecting said arms to move together, a governor and a connection therefrom to said link, whereby said valves are oscillated together by the governor and are separately adjustable about the axis of oscillation to vary the relative proportions of hydrocarbon and air, substantially as shown and described.

This specification signed and witnessed this 5th day of October, A. D. 1897.