US725669A - Speed-governing mechanism. - Google Patents

Description

PATENTED APR z l, 190-3.

, L. F, BURGER. SPEED GOVERNING MECHANISM.

APPLIQATION FILED MAR. 27, 1902. no MODEL.

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. L.F.BURGER.

SPEED GOVERNING MECHANISM.

APPLICATION FILED MAR, 27, 1902.

2 SHEETS-SHEET 2,.

N0 MODEL] NVENTOR i lu "24 f 6/3 7 ZiO/JOMFE I ya: Aflorlzey UNITED STATES PATENT OFFICE.

LEOPOLD F. BURGER, on ANDERsoN,

FOUNDRY AND MACHINE WORKS, OF ANDERSON,

INDIANA, AssIeNoR TO WOOLLEY INDIANA.

SPEED-GOVERNING .MECHANISM.

SPECIFICATION forming part of Letters Patent No. 725,669, dated April 21, 1903. Application filed March 27, 1902 Serialllo.l00,242. (110 model.) v

ling a valve mechanism upon a gas or other engine.

The invention has for an object to provide an improved construction wherein the governoris pivotally mounted eccentrical ly to the axis of the fly-wheel and the shaft of this governor geared to actuate suitable connections for shifting the controlling-valve.

A further object of the invention is to provide a novel construction of rotatable sleevecarrying means for actuating or imparting a reciprocating motion to a valve.

Other and further objects of the invention will hereinafter appear and the novel features thereof will be pointed out by the appended claims.

In the drawings, Figure 1 is a horizontal section through an engine embodying this in-' vention; Fig. 2, a detail verticalsection on. Fig. 3 is a detail ele-f the line 2 2 of Fig. l. vation of the fly-wheel and governor shown in Fig. 1, and Fig. 4 is a detail horizontalsection showing a modified form of sleeve for transmitting power to a valve.

Like letters of reference refer to like parts throughout the several figures of the drawings.

The present invention is capable of application to any desired class of engines and governing-valves, butfor the purpose of illus-' tration is herein shown in connection with an engine com prising a casing A, having therein a cylinder A and a piston A connected by a pitman A with a crankshaft-A The closed end of the cylinder A is provided with a combustion-chamber Aicommunicating with an exhaust-valve A adapted to be operated by a rod A bearing against a cam A suitably driven from the crank-shaft A by means of a gear A.

Com mu nicatin g with the combustion-chamber A is an intake-valve B, suitably supported by a cross-bar B and having an extended stem B extending through a mixing-chamber B This stem carries at its lower end a f uel-valve O, slidin gly mounted thereon,while below the valve 0 a nut O is provided which is adapted to travel with the stem within a tubular guide D, provided within the fuelchamber D at the lower portion of the valvecasing. bular stem 0 surrounding the stem B of the inlet-valve B and disposed within the guide D, while the fuel is admitted to the chamber D by a suitable inlet, as shown at D Both the valves B and C are restored to their seats by means of a coiled spring 0 between the face of the valve 0 and the end wall of the mixing-chamber B Within the spring 0 a shorter and heavier spring 0 is placed, which in the opening movement of the valves forms a cushion to check the force thereof, thus causing the valves to stop very easily and quietly to prevent crystallization of the parts thereof.

One form ofgoverning-valve E is herein shown and is slidingly mounted within a casing E at one side of the mixing-chamber B and provided with a series of ports E adapted to register with ports E communicating with the air-chamber E in the casing E, into which the air is admitted by a suitable open- The casing E is provided with a separate gas or fuel chamber E, communicating by ports F. with the mixing-chamber, which ports are adapted to be covered by the end E of the. sliding governing-valve, thus producing a governing-valve for controlling the entrance of air'and fuel into the mixingchamber and a structure in which a single movable part controls the entrance of the explosive mixture, and consequently the speed of the engine.

The valve E is provided with a stem F, having thereon a threaded portion F, adapted to carry an adjusting-nut F between which and the casing E a tension-spring F is inter- The valve C is provided with a tuthe engine.

one end theweighted arms G whichare connected with afixed part of the wheel bymeans of a spring G, Fig. 3, and at the oppositeend is provided with a pinion G meshing vwith a similar pinion Gflcarriedby a rotatae ble sleeve G supported upon the crank-shaft A This sleeve is provided with an eccentric H, secured thereon, whichmay be shifted andheld in any desired position by the ro-,

tary movement of the sleeve G while surrounding-the eccentric and carried by'the valve-rod Fis a sleeve H by means ofwhich a reciprocating motion is imparted'to the rod and valve in the rotation of the eccentric. The sleeve and the eccentric carried thereby are loosely fitted upon the engine-shaft and 130-. tated by the gear. carried by the governorshaft, the eccentric being retained in proper position by the governor. As the speed of the engine increases the governor will be ro-. tated, thereby throwing the eccentric ahead and cutting off the ports of thexgoverningvalve before the pistonreaches the end of its stroke. It will be apparent that by adjusting this eccentric to different positions with the sleeve it-can be geared so as to travel the desired extent relative to the action of the governor and accurately control the operation of the governor-valve.

The modified form of sleeve shown in Fig. 4 is provided with a slot G in which a pin G from the crank-shaft A extends. At-one end of the sleeve a flanged way G is provided, into which one arm of a crank-shaft G extends, while the other arm thereof ispivotally connected to the rod F By this construction when the sleeve G is rotated through the movement of the governor-arm it is also given a longitudinal movement upon the crank-shaft, thus shifting the governingvalve E through the crank-arm G and valver'od F The operation of the governing mechanism is the same as in Fig. 1, andthe only difference in structure is in the transmission ofpower from the sleeve G The governor herein shown is of the inertia type, being pivotedeccentrically to the axis of the fly-wheel and rotating therewith, it being held in position by the spring until the speed of the engine becomes greater than the set of the governor-sprin The spring then lacks power to hold the governor and the latter begins to'hang back, thus rotating its shaft and through the gears and sleeve, which is loose'to rotate upon its-shaft, shifts-the ecjdoing move the crank-arm connections for shifting the governing-valve.

' It will be obvious that changes may be made in the detailsof construction and configuration without departing from the spirit of the invention as definedby the appended claims.

Having describedv my invention and set forth its merits, what I claim, and desire to secure by Letters-Patent, is

1. In a speed-governing mechanism, a shaft,

'a iiy-wheel mountednpon said shaft andpro-v 'vided with a bearingeccentric'thereto, a governor mechanism havingweighted endsataop- "positesides-of said shaftandpivotally mount- {ed in. said bearing, a spring extended from the end'ofthegovernorpopposite the pivot to .said wheel, adriving-pinion carried: bysaid governor-pivot, a: sleeve rotatably mounted upon said shaft and provided with a. gear meshing directly-with said pinion, and means carried; by said sleeve for transmitting mo- 'tion to areciprocating valve-rod; substantially as specified.

2. In a speed-governingmechanism, a shaft, a fly-wheel mounted-upon said shaftandprovided with a,bearing. eccent-ric'thereto,agovernor mechanism pivotally mounted insaid bearing and provided with a driving-pinion upon its pivot, a sleeve rotatably'mounted vupon said shaft and provided. with a gear meshing directly with said pinion, aaspring connecting the free end of said governormeclr anism to said fly-wheel, a governing-valve, a

"connecting-rod extending from said-valve to said sleeve, and a tension device ,forcontrolling the pressure necessary to operate the governing-valve; substantially as specified.

3. In a speed-governing mechanism, acylinder, a piston therein, axshaft connected'to said piston, a. fiy-wheel' mounted upon said shaft, a bearing. carried .by saidwheel, agovernor having-weighted ends and rotatably mounted between itsends in said bearingeccentrically to the axis of said shaft, aspring connecting the free .end of saidgovernor-arm to said wheel, a diagonally-slottedsleeve .ro-

tatably and slidably-mounted upon said shaft and having gear-teeth thereon, a pinion upon the pivot of said governorarms directly gearedto saidgsleeve, a governing-valve having an extended stem, and acrank-arm connected to said sleeve and stem; substantially as specified.

4. In a speed-governing mechanism, a drivingshaft, a fly-wheel upon said shaft .provided with a bearing-block extended from its hub, a governing mechanism pivotally mounted in said block eccentrically to the axis of said wheel, a pinion upon the opposite end of in presence of two witnesses.

LEOPOLD F. BURGER.

the governor-pivot, a rotatable sleeve monnt- In testimony whereof I affix my signature ed upon said shaft, gear-teeth carried by said sleeve to mesh directly with said pinion driven from said governing mechanism, and a valve- 5 rod connected to said sleeve to be reciprocated thereby for actuating a governingvalve; substantially as specified.

Witnesses EDWARD D. REARDON,

H. H. BENEFIEL.

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