US963573A - Gas or vapor engine. - Google Patents

Description

G. E. IRELAND. GAS 0B VAPOR ENGINE. nrLmuIoN Hmm un. so, 1909.

Pag-,enten July 5,1910.'

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G. E. IRELAND. GAS ORVAPOB ENGINE. l APPLIOATIONIILBDJALSU,laos.

vPatented Jlily 5, 1910.

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GEORGE E. IRELAND, 0F DAYTON, OHIO.

GAS OR VAPOR ENGINE.

Specication of Letters Patent.

Patented July 5, 1910.

Application filed January 30, 1909. Serial N o. 475,246.

To all 'whom it may concern:

Be it known that I, GEORGE E. IRELAND, a citizen of the United States, residing at Dayton, in the county of Montgomery and the State of Ohio, have invented a new and Improved Gas or Vapor Engine, of which the following is a full, clear, and exact description.

My invention relates to four stroke cycle explosive engines, and its object is to= provide a new and improved gas or vapor engine which shall be simple and durable in construction and very effective in operation.

The invention consists principally of a rocking valve, cylindrical in form and provided with inlet and exhaust ports, a revolving cam, a valve gear mechanism operated by said cam and a governor arranged to break the connection between the valve gear mechanism and its actuating cam whenever the speed of the engine exceeds the normal velocity, in which case, the gas inlet will be cut off and theexhaust port held wide open; but while the said engine is running at or below normal speed the said governor will maintain the connection between the said cam and the said valve gear mechanism whereby the said cam will continue to actuate the said valve rrear to cause the valve ports to be opened at the proper time, to remain open during the proper period and also to be closed at the proper time in relation to the periods of the engine.-

Referring to the accompanying drawings: Figure 1 represents a side elevation of a gas engine embodying my invention; Fig. 2 is a plan view of the same; Fig. 3 is a vertical central section through the valve and part of the cylinder; Fig. 4 is a similar section of the valve alone; Fig. 5 is similar to Fig. 4 excepting the position of the valve cylinder and ports; Fig. 6 is a front view of the valve; Fig. 7 shows the governor action when the engine is ruiming above normal speed and the mechanism by which the cam operates the valve; Fig. 8 shows the cam 16, the spur gear 14 and the bevel gears 15 and 20 assembled; Fig. 9 represents the cam 16.

The improved engine is provided with a suitably constructed frame 1 on which is cast or otherwise secured the cylinder 2. Mounted on the end of the cylinder is the valve body 3 in which is rotatably mounted the valve cylinder 4 provided with flanges 5 and 6, by which it is securely held in position and closely fitted to the walls of the valve body 3. The valve cylinder 4 is perforated through its central section by two oppositely bent elbow shaped ports which lie in the same vertical plane. 'The port 7 is used for the inlet of gas and air and the po-rt 8 for the exhaust. The port 9 connects the valve with the cylinder and I have chosen to name the same cylinder port Through the inlet 10 gas and air is supplied to the cylinder and through the outlet 11 the burned gases are exhausted. Mounted on the crank shaft 12 is the gear 13 meshing into the gear 14. The gear 14 having twice the number of teeth of gear 13 revolves only one half as fast. Secured to ene side of gear 14 is the bevel gear 15 and to the other side is the cam 16. The gear 14, bevel gear 15 and cam 16 are securely fastened together and revolve as one piece on the stud 17, being retained thereon by the collar 1S. The stud 17 is mounted in the bracket 19 which is secured to the frame 1. By the gears 13 and 14 the cam is made to revolve once to every two revolutions of the crank shaft. Meshing in the bevel gear 15 is the bevel pinion 20 which is mounted on the governor shaft 21. Slidably mounted in the bracket 22 is the rod 23 carrying the roller 24 which is held against the periphery of the cam by the compression spring 25. Similarly mounted in the bracket 26 is the bar 27 carrying the pawl 28.

While the engine is running at normal speed the rod 23 willbe reciprocated back and forth by the cam 16 and the spring 25, impinging in its forward movement the pawl 28, which, in turn, carries the bar 27 attached to the vibrating arm 29, which actuates the connecting rod 30 and rocks the valve cylinder 4 approximately 90 degrees of a circle in one movement, the connecting rod 30 being attached to the rocking arm 31 which is mounted on the valve cylinder extension 32. The valve cylinder is rocked in the opposite direction by the spring 33. The arms, rods and connections interposed between the cam and the valve, by which the said valve is rocked, I have chosen to term valve gear mechanism.

While the speed of the engine is normal the governor lever 34 assumes the position shown in Fig. 1 and holds the pawl 28 in the position shown therein and thereby maintains a connection between the cam 16 and the yalve gear mechanism, so that each revolution of the cam will cause the valve cylinder to rovcklforkward and backward, but-when ,p the engine speed rises above normal the governor balls 3535 ly outV as shown in-Flg. 7 and the fingers 36-36 press downuponi the sleeve 37 which-causes the governor lever 34 totaked the'position shown therein/and the pawl 28 is raised by the spring 38 so that the cam cannot rockthe valveV cylinder orwardL-'tlie connection being broken but,`by rthe'spring', the valve is rocked backward asv-indicated by the arrangement of parts showin in'Fig. 7. l

The action of the cam 16 upon the valve n l' cylinder14'may be described by referring to Y Figs. 9, 3, 4 and 5. Y The cam revolves in the direction indicated by the arrow and for the Epurpose of description I have divided the cam into four 'quadrants by the lines A-C and: `B441) which correspond to the four p jthe point marked 'B.

'periods of afour stroke cycle engine. Vhen Vthe roller 24 is inthe position shown in Fig.

.'Q'the valve cylinder has: been rockedfor- `ward almost to its extreme position in which `the gas port 7 will.take gas. This position of the 4valve cylinder is shown in Fig. 3. fAs'long as thel port 7 is in this position the gas and air will enter through the inlet 10,

Vthe port 7 and the cylinder port 9l to the 'Y ports will assume the position shown in Fig.

At this'junc'ture the second quarter of tl'ie cycle commences and while the roller is traveling to the point marked C the gas f and air is'compressed.' Then while the roller travels to the point marked D ignition takes V place and this p is duringr the third quarter of the cycle. f During the compression and ignition, or second and third periods, the valve cylinderV remains in the 'position shown in Fig. 4 with the inlet, Vexsaid cam, comprising exhaust port is wide open as shown in Fig. 5 andV remains in tliis position during the Vfourth quarter of the cycle, or while the roller is` traveling to the point Ai While Ain this position the burned gases are exhausted through the exhaust outlet 11.

lThe above described operation of the valve applies while the engine. is running at normal speed, or below the same, nbut whenever the speed of the engine exceeds the normalvelocity the Vgovernor cuts off the gas supply and the valve -is held with the exhaust port open as shown in Fig. 5 and the en ine does not take gas again until the spec thereof drops to the normal velocity. This action of the valve is accomplished by the mechaiiisni illustrated in Fig. 7

'Having fully kdescribed my invention what I claim as new and desire to secure by Letters-Patent is:

l. In a gas or vapor engine the combination of a cylindrical rocking valve having inlet and exhaust ports, a revolving cam, a valvey gear mechanism, interposed between saidl cam and said valve andY actuated by said cam', comprising a rocking arm, a rod and a pawl connecting said rod to said rocking arm, andr a governor for breaking the connection between said rod and sald rocking arm whenever the speed of the engine exceeds a certain limit.

2. VIn a gas or vapor engine the combinatioiifof a cylindrical rocking valve having inlet and exhaust ports, a revolving cam, a

Vvalve gear mechanism interposed between said cam and said valve and actuated by and a spring actuate pawl forminor a breakable connection between said roc ring arm Vandfsaid rod and a governor for maintainingsaid connection while the speed of the engine is below .a certain limit.

GEORGE E. IRELAND. Witnesses:

, EMM-A S. Lewis,

Ci-iAs. BUzzARD.

a rocking arm, a rod

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