US945245A - Gas-engine starter. - Google Patents

Description

G. L. ODENBRETT. GAS ENGINE STARTER.

APPLICATION FILED MAR. z5, 1909.

945,245. Patented Jan.4, 1910.

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GAS ENGINE STARTER. APPLIOATION FILED MAB.. 25, 1909.

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GEORGE L. ODENBEET'T, 0E MILWAUKEE, WISCONSIN.

eriiis-EivenvE STARTER.

Specification of Letters Patent.

Patented Jan. 4, 1910.

Application mea March 25', i909. seriai'No. 485,636.

To all 'whoml 'ifinay comer/ri:

Be it known that I, GEORGE L. ODENBRE'IT, residing in Milwaukee, inthe county of Milwaukee and State of Wisconsin, have inventedl new and useful Improvements in lGras-Engine Starters, of which the following 'is a description, reference being had to the accompan ing. drawings, which are a part of this speci cation.

This invention-has for its object to provide an improved valve mechanism for use with gas engine starters such as covered by Letters Patent issued to `me on October 13,

1908, No. 892,544, such valve mechanism bev proper admixture is formed and start theY ving designed to'accomplish the successive steps in the operation of the engine starter by the application 'of pressure to a plunger kiby means ofthe foot or otherwise so as to quickly accomplish' the starting operation without requiring the driver to manipulate a seriesAof hand valves.

Theimprovements covered by this invention consist of avalve construction to be operated by the pressure of the foot on a plunger to first open a charging tank containing gas under pressure to the proper cylinder of theengine through a selecting valve and then by further pressure to open a connection from a compressed air reservoir to said charging tank, 'so that theair under pressure will drive the gas before' it into the proper cylinder of the engine and there become mixed with it to explode when the envine in operation.

'theinvention consists in the gas engine starter herein claimed, its parts and combi- '1t-4 of Fi thereof;

nations of parts and all equivalents.

' Referring/tothel accompanying drawings in which like characters of reference indicate the same parts in the different views; Figure 1 is aplan view of a gasengine starter constructed in accordance with this invention and mounted on an automobile frame, with the valveconstruction partly in section andy -551 sectional view thereof on the "plane ofy line 0. 3; Fig. 5 is a front elevation una, Fig. 6 is a transverse sectional with checkwalvcs K, K2, Ks an With/theabove and other objects in viewl view through one barrel thereof on the plane" of line 6--6 of Fig. 4.

In these drawings, A, A represent a multiple cylinder engine, as here shown there 6u being four cylinders in all, arranged vertically at' the front or boot ofthe automobile frame as usual, and B 4is an acetylene di' other gas reservoir and C-a com ressed air reservoir securedto the sides of tiie automobile frame, D being a charging tank in any desirable location and likewise secured to lthe frame. A hand valve` E `is provided within convenient ieach of the driver, preferably on the dash boardand controls communication between a pipe F leading from the gas tank B and a pipe F leading to the charging tank B. 'A valve construction E" controls communication between a pipe G leadin from the air reservoir C and a pipe G leaing to the charging tank B and also between a pipe HA leading from the charging tank D and a pipe H leading to a selecting valve I, which .is desirably secured at the `front part of the automobile frame as shown. The selecting valve I has pipes J1, J2,.J3 and J4I leading therefrom at different. positions on its disk-shaped head to the explosion chambers of the respective cylinders of the engine, these pipes being i-ovided ranged to prevent a flow therethrough from the cylinder toward the selecting valve.

The crank shaft M of the engine has a pinion N thereon which .is eared to a sprocket wheel O by means o a chain P, said sprocket wheel O being 4mounted on a shaft Q, which is journaled inthe casing of thev selecting valve I with a disk-shaped valve member R rigidly but adjiistably secured thereon. The disk valve R is thus rotated by the engine at a speed which' will causeit to make one revolution with each two revolutions of the crank shaft, the pinion N and theV sprocket wheel O being so' proportioned, and serves to control communication between the pipe H which connects with the space on onesi de thereof, and the pipes 'J, J2, J and J* which connect with 4the casing on the other side thereof, by

. the piston is in position to receive an explosion and the it ofthe disk valve withintne casing is sufici'ently close to prevent communication between the pipe H and any of which theopening S is not in reglster.

The valve construction E constituting the improvement -of the present invention over the hand valves of the former devicecomprises a valve casing adapted for attachment to the frame of the vehicle at any convenient place, preferably at the dash board, and is provided with a pair oi' parallel tubes o r barrels. 11 which project forwardly to form guides for a pair vof spring pressed plunger valves. The bore through the barrels 11 and the casing changes in diameter to form valve seats upon which the conical shoulders of the enlarged rear ends of valve stems ly and 13 fit tol normally close composed that when the valves of the valve portions to munication between the ment of the val-ve Ith :j ing ca municat-on between pipe connections 14 and 15 on one side ofthe device and pipe connections 16 and 17 on the other side of the delvice, each pairof pipe vconnections being dison opposite sides ofthe valve seats so areclosed there is no communicationbetween them.

The -valve stems are reduced in size ahead permit of free comrespective pi econnections Awhen the valves are-unseated The valve stems are normally held closed by meansof coil springs 18 contained Within eir rear ends which are made tubular for thispurpose, said springs bearing against hollow plugs 19 which are threaded 1n the rear of the casing, there being a short rod 20 Within each spring to limitthe inward moverod. At the front ends of the barrels 1l they are provided With 'bushs 21'to prevent the leakage of compresse -air or gas around the, lvalve stems-and the front end ofthe valve stem 13 has mount- .ed on it a plunger head 22. by means of which y tion of the movement it may be `forced -against the pressure of its lts valve lupon the first por.

said plunger'head extending into the line of the valve stem 12 spring to open 4 with a guide 23 thereonfitting around the its valv'e'agai Vhead. From 5' 24 extendsforwardly and 'up through lts end within plain sigh nects with the p 6ov h -nects with the pi Ithe pipe connection valve stem 12 and adapted to engagesaid valve stem 12 nst the pressure of its spring er movement of the plunger the4 pipe connection 16 a pipe a cross e barrels 11 where it has gage 26 mounted onv t of the driver. The pipe H from the charging tank D also conipe connection 16 containing t e gage connection while'the pipe H conpe connection 17 and the plpe G from the air reservoir connects with .14 while lthe pipe G leading to the charging tank D connects with upon a furth piece between th an upstandng pressure t 1e pipeegnnection l.

and force it to move to open4 13 so as to allow ervoir topass through said,valve 13 and the pipe H to the proper ,cylinder of the engine, ils-determined by the position of the. selecting valve I, and when the pressure gage indicates that this has been accomplished he presses with greater force. on the plunger i head 22 to cause the other valve 12 to open and thereby open the connection from the' compressed air reservoir C through pipes Gr.'

from which and G to the charging tank D the air passes through pipe Hand the open valve 13 and the pipe H into said cylinder where it mixes with the gas forced before it and, as the ignition device is ybeing operation, as soon as the proper mixture of air and gas is attained it explodes and starts the engine in operation. The removal of the foot from the plunger head restores the valveparts. to their normal closed positions i ready for the next starting operation.

l -What I claim as my invention is:

1. A starter for multiple to establish com- Vkept in' cylmder gas enmunication with the respective cylindersv of v l gmes, comprising a selecting valve driven by the engine when their pistons are in position toreceive an explosion', a charging chamber communicatingair reservoir and a gas reservoir communicating with the charging chamber,' a con- ,l trollingl valve in the connection between the i gas reservoir and thecharging a double valve havin which when partially operated serves to open one `valve member'to open the coml munication between the charging chamber and the selecting valve and which operating member when further operated serves to open another valve member to open the com- I municaton between the charging chamber. t 2. A. starter for multi l gines, comprising a selecting valve driven by chamber, and g an operating member air'reservoir and the v v 115.

are. imposition rging chamber with the selecting valve, an

communicating with the selecting valve, an.

cating with the charging chamber, a con- I. troll'ng valve in the connection between the -gas reservoir and the charging chamber, a. gage connected with the charging'ch-amber to Indicate the pressure therein, and a double ch when partially4 yvalve having a plunger Whi operated serves to open one valve member air reservoir and a gas reservoir"communi-v to open the communication lbetween the Ycharging chamber and the selecting valve gines,'compris`ing a selecting valve driven by the engine and adapted to establish communication with the respective cylinders of the engine when their pistons are in position f to receive an explosion, a charging chamber communicating'with the selecting va 'e, an air reservoir and a gas reservoir communieating withthe charging chamber, a controlling valve in the connection between the gas i reservoir and the charging chamber, a gage connected with the charging chamber to indicate the pressure therein, and a double l valve, comprising a casing having a pair ofrparallel barrels with bores of diti'erent diameters to form valve seats therein, valve stems slidably mounted inthe bores ofthe barrels and having shoulders forming valves to it on the valve seats, pipe connections for each barrel on opposite sides of the valve seat, the pipe connections for one valve being connected to the terminals of the communication between the charging chamber l and the selecting valve and the p ipe connections of the other valve being connected with the terminals of the communication 'between the air reservoir and the charging chamber,i

springs for holding the valves normally closed, and a plunger head on the stem of the valve in the communication between the charging chamber and the selecting valve for opening the valve. of said communication by a partial movement thereof and adapted to engage the other valve stem to open the valve in the communication between the air reservoir and thecharging chamber with a -lurther movement thereot.

fl. A starter for multiple cylinder gas engines, comprising a selecting valve driven by the engine and adapted to establish communication with the respective cylinders of the engine when their pistons are in osition to receive an explosion, a charging c amber communicating with the selecting valve, an

air reservoir and a gas reservoir co unicating with the charging chamber, a lcontrolling valve in the connection between the gas reservoir and the charging chamber, a gage connected with the charging chamber to indicate the pressure therein', and a double valve, comprising a casing having a pair of parallel barrels with bores of different diameters to forni valve seats therein, valve stems slidably mounted in the bores of the barrelsv and having shoulders forming valves to fit on the valve seats and being tubular at their enlarged rear ends, coil springs seated in the tubular ends of the valve stems, screw plugs threaded in the ends of the barrels and forming bearings for the spring, rods contained in the springs to limit the movements of the valve' stems, rei on opposite sides of the valve seat, the pipe connections for one valve being connected to the terminals of the communication between the charging chamber and the selectingvalve and the pipe connections of the other valve being connected with the terminals of the communication between the air reservoir and the charging chamber, packing glands between the ends of the barrels and the valve stems, a plunger' head on the stem of the valve in the communication between the charging chamber and the se'- lecting valve for opening the valve of said ipe connections for each bar-V communication by a partial movement thereof, and a guide on the plunger head for the othervalve stem, said plunger head being adapted to engage said other valve stem to open the valve in the communication between the air reservoir and. the charging chamber with `a further movement of the

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