US821373A - Gas and steam engine. - Google Patents

Description

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' I ,PATENTBD MAY 22. 190e.' 11.13'.N-IGO13B-Ivins.` j GAS AND STEAM ENGINE.

MPLIOATIONITILED 0oT.27, 19o4 UNITED sT-ATEs HENRY B. NICODEMUS, OF ALLEGHENY, PENNSYLVANIA.

GAS AND STEAM ENGINE.

Specification of Letters Patent.

bratenteo. May 22, 1906.

Application filed October 27, 1904. Serial No. 230,237.

gines, and has for its object the provision of novel means whereby these engines may be combined so that either one may be operated independently of the other.

A further object of this invention is the provision of novel means whereby it will not be necessary to detach or separate any part 'of the engine when it is desired to use either one, and to this end I have constructed the engine in as .compact a form as possible to maintain a safe, strong, and durable construction. i

lVith the above and other objects in view the invention iinally consists in the novel construction, combination, and arrangement 4of parts tobe hereinafter more fully described, and specifically pointed out in the claims.

In, describing the invention in detail reference is had to the accompanying drawings, forming a part of this ap lication, and wherein like numerals of reilerence 'indicate llike parts throughout the several views, in which Figure 1 is a side elevation of my improved as-engine, a portion of the same being roken away. Fig. 2 is a horizontal sectional view of the same. Fig. 8 is an end view ofthe gas-engine cylinder. Fig. l is an enlarged bottom plan view ofthe casing containing the gas-inlet and governor. Fig. 5

` is a detail view of a cam employed in connection with the steam-valve. Fig. 6 is aside elevation of the piston employedin my .imn proved engine. Fig. 7 is a 'detail sectional view of a portion of the gas-engine cylinder'. In the accompanying drawings the engine, as illustrated, is in position to be operated as a gaaengine, and as such it will be :lirst described.

The gas-engine cylinder 1 is formed with a Water-jacket 2, and the one end of the cyhnder is providedvwith a head 3, which is* secured upon said cylinder by bolts 4. Near the opposite end of the cylinder is formed an exhaust-port 5, this port communicating with the lnterior of the cylinder by a plurality of smaller ports 6, which are in communication with1 the exhaust-port, as clearly shown in Fig. 7 ofthe drawin s. Diametrically opposite these ports are Iormed a plurality of inlet-ports \7, `which communicate with the main inlet-port 8.

To the end of the :as-.engine cylinder 1- is ysecured bybolts an Inuts 9 the steamengine cylinder 1D, this cylinder being provided with a head 11, that-carries a suitable stufling-box 12. Formed integral with the steamengine cylinder 10 is the steam-chest, from the chamber 14of which lead ports 15 and 16, communicating with the steam-engine cylinder.

The referenoe-nu1neral 17V designates the' steam-inlet pipe, which is provided with a -valve 18.

The referencanumeral 19 designates the steam-exhaust, and this exhaust is controlled by the slidevalve 20, which is operated by ,the link 21", connected. to the crank-shaft oi the engine. The position of this slide-valve is governed by a cam 21, rotatably mounted within said slide-valve` and controlled by a lever 22, carried by the rod 23, that connects said slide-valve with the link 21.

The reference-numeral 24 designates the piston-rod, to which is secured the piston 25, this piston being of a diameter equivalent to the diameter of the gas-engine cylinder 1, and said piston is provided with a head 26, that is of a diameter equivalent to the steam-cylinder 10. The forward end of the piston is provided with the packing-rings 27 and the deilectors 28 28.

To the side of the gas-engine cylinder is secured a casing 29, and in this casing is mounted a governor and a gas-inlet valve.

The reference-numeral 30 designates the gas-inlet pipe, which is provided with a valve 3l.

The casing 29 is provided with an annular gas-inlet port 32, this port being controlled by a springpressed valve 33', that is connected to a pivoted lever 34.

The reference numeral 35 designates a valve which controls the gas-inlet to the annular port 32, and this valve is connected by a rod 36 to the pivoted lever 34.

It will be observed from Figs. 2 and 3 of the drawings that the steamengine cylinder opened, admitting gas to the chamber in casing 29. The fly-wheel (not shown) of the engine is turned byhand, whereby to move the piston 25 and head 26 von the outstroke to- Ward the head 3 of the gas-cylinder. This steam-cylinder 10.

movement creates a suction in the steam-engine cylinder back of the piston-head 26 suliicient to unseat valve 33 and allow the gas to pass from chamber in casing 29 through port 32 into chamber 8, through passage-Way 37, through passage 1 5 into the steam-chest, and from thence through passage 16 into the On the return or in stroke of the piston the gas is forced out of the steam-cylinder 10 throu h ports 16, 15, and 37 and passes into t e gas-cylinder through port 7 and is compressed in said gascylinder on the succeeding outstroke of the piston 25' and head 26, being ignited when compressed inthe usual manner to again force the piston on its. instroke, and the engine is started, the exploding gases escaping through .the exhaust 5. lt is to be understood that in this operation of the engine the exhaust 19 is closed in any desirable manner, as by a valve 18, which maybe located therein at any suitable point. Should the explosions become too frequent, due to an excess amount of gas being admitted to the gas-engine cylinder, the valve 33 will, due to the frequent explosions, be moved away .from its seat farther thanrequired, and through connection ofthe stem of this valve with the lever 34 the valve 35 will be moved so as to partially close the lport leading from the chamber in casing 2,9 to theI port 32, and thus shutV off the flow of gas sufhciently to reduce theexplosions and b: ig the engine to its normal running condition. The gas is thoroughly mixed with air at the-intake of the gasinto the cylinder, air being readily permitted to enter through the spider-like end of the casing in which the valve 33 is mounted7 as clearly shown in Fig. 4 ofthe drawings.

l/Vhen used as a steam-engine, the cam 21 is rotated, which is accomplished by lever 22 and rod 23, so as to move valve 20 against the valve-seat in the steam-chest, which in the `position shown in Fig. 2 of the drawings would cause the valve 20 to close port 15. The gas-controlling valve 31 havingy previously been closed and steam-controlling `valve 18 now being opened, the steam admitted to the ste iii-chest would pass through port 16 into the steam-cylinder behind the piston-head 26 and cause the piston 25 and piston-head 26 to be propelled outwardlyv but the movement of the piston 25 and pistonhead 26 is not suliicient on this outstroke t cause the head 26 to close port15, The actuation of the slide-valve 20, due to its connection, through rod 23 and link 21', with the crank-shaft of the'engine, shifts said valve so as to allow steam to enter port 15 into the annular space surrounding the piston 25, the steam employed to force ,the piston outwardly exhausting through port 16 and exhaust 19. This operation: is continuous during 'the time said engine is operated by steam.

The effect of the construction and` operation above described is that. the more frequent the explosions -the more rapidly the engine will run, and the more rapidly the istons reciprocate the more violent the suction,

and consequently the farther the movement l of the valve The regulating means prevents the engine from racing by partly closing valve 35 when the predetermined maxi-l mum rate of motion has been attained.-

Having fully described my invention, whatf I claim as new, 'and desire-to secure by LettersPatent, is- 1. The combination with a gas-engine cylinder, of a steam-engine cylinder, said steamengine cylinder being of a largerdiameter than said gas-engine cylinder, a piston 'operating `in said cylinders, and having an enlarged head operating in said steam-cylinder, said gas-cylinder having an inlet and an exhaust port, said steam-cy inder having an inlet and an exhaust port, means for controlling the i inlet of said gas, a sliding valve controlling said steam inlet and exhaust ports, and means for moving said sliding valve into and out of operative described. y

2. ln a combined steam andexplosive engine, the combination of-'an alined steamcylinder and gas-cylinder, 'the steam-cylinder being of greater internal diameterthanthe gas-cylinder, a piston operating in said cylinders and having an enlarged he'ad atonelend operating in the steam-cylinder, a ,gas-inlet and an exhaust for the gas-cylinder', a valve normally closin T the gas-inlet,k controlling l to said valve for automat-j ically regulating the quantityof gasadinitted A through the gas-inlet, a port' establishingl means connected communication between the 'gas-inlet and the steam-cylinder, and inlet-ports rand an exhaust-port for said steam-cylinder, substantially as described. l

3. In a combined steam and `explosive eiigine, the combination of an falined steam-c vl- IOO position, substantially as y,

'los

inder and gas-cylinder, the'steam-cylinder being of greater internal diameter than the gas-cylinder, a piston operatinginboth of said` cylinders, and having an enlarged head operating in thesteam-cylinder, inlet and ex-" haust ports for the gas-cylinder, and independent inlet and exhaust ports for the steam-cylinder, the said steam-cylinder acting in conjunction Witn tne gasfcylinder when the engine is being used as an explosive engine, substantially' as described.

- 4. In a combined steam and explosive engine, an alined steam and gas cylinder, the steam-cylinder being of larger internal diarneter than the gas-cylinder, a piston operating in both of said cylinders and having an enlarged head o erating only in the steamcylinder, `both o saidcylinders receiving gas and air when the engine is operated as an ex plosive-engine, and the steani-cylinder being used independently of the gas-cylinder when the engine is operated as a stea1n-engine- 5. A combined gas and explosive engine embodying an alined steam-cylinder and a gas-cylindei;, a piston operating in both of said cylinders, and having a head operating only in the' steam-cylinder, both of said cylinders receiving gas and air when the engine is operated 'as a gas-engine, and the steamvcylinder alone receiving steam when the engine is operated as a steam-cylinder.

tively to the ports in the cylinder, a piston loi cated in the cylinder, a gas-cylinder having an inlet-port and an exliaust-port, a valve governing the inlet-port of the gas-cylinder, a plunger located in the gas-cylinder and connected to the piston in the steam-cylinder, said cylinders being provided with a port leading from the gas-inlet to one of the ports of the steam-cylinder.

In testimony whereof I aiiix my signature in the presence of two witnesses.

.HENRY B. NICODEMUS. Witnesses:

E. E. POTTER, K. H. BUTLER.

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