US974972A - Starting mechanism for explosion-engines. - Google Patents

Description

. S, JAGHIMOVIGZ. STARTING MECHANISM FOR EXPLOSION ENGINES.

' I APPLICATION TILED 113.23, 1909. r 974,972. Patented Nov. 8, 1910.

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s. JAGHIMOVIOZ, STARTING MEGHANISM'FOB EXPLOSION ENGINES.

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} Q APPLICATION FILED FEB. 23, 1909. 974,972.

2 T E E H H T E E H B 3 vvsumn jzymvn/ M v s. JACHIMOVIGZ. STARTING MECHANISM FOR EXPLOSION ENGINES.

APPLICATION FILED I'EB.23, 1908.

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Patented Nov. 8, 191.0

UNITED STATES PATEN'I? OFFICE. SZYMON JACHIMOVICZ, OF SAN FRAFTCISCO, CALIFORNIA, ASSIGNOR OF ONE-HALF TO GRODIN, OF OAKLAND, CALIFORNIA.

STAR TING MECHANISM FOR EXPLOSION-ENGINES.

Specification of Letters Patent.

Patented Nov. 8, 1910.

Application filed February 23, 1909. Serial No. 479,636.

To all whom it may concern:

Be it known that I, SzYMoN J AGHIMOVICZ, a subject of the Czarof Russia, residing at San Francisco, in the county of San Francisco and State of California, have invented a new and useful Starting Mechanism for Explosion-Engines, of which the following is a specification in such full and clear terms The engine is started by means of charges of compressed fluid admitted to the cylinders ofihe engine at proper intervals, said com- "p'ressed fluid .being admitted to the' engine cylinders through the starting mechanism, said starting mechanism operating for such a length oftime as may be necessary to begin the proper cycle of explosions, after which the sup 1y of compressed fluid is discontinued rom the working cylinders.

In the accompanying drawings, in which the same numeral of reference is applied to the same portion throughout, Figure 1 is a side elevation of a two cycleengine having this startin mechanism applied thereto, Fig. 2 is an en elevation of the same engine, Fig. 3 is a sectional view of the check valve used at the entrance to the cylinder of the compressed fliiid pipe, Fig. 4. is a sectional view of the starting mechanism, the lane of section being parallel to the plane 0 Fig. 1, F ig. 5 is a sectional view parallel to the plane of Fig. 2 and through the channel 21 of the starting mechanism, Fig. 6 is a view the same as Fig. '5 save that the starting mechanism is turned to start the engine in the opposite direction, Fig. 7 is a longitudinal sectional view of a starting mechanism of a slightl different form from that of Fig. 4, the revo uble parts being secured directly to the crank shaft, Fig. 8 is a transverse sectional view of the mechanism shown in Fig. 7 on the line 88,. Fig. 9 is a transverse sectional view of the mechanism illustrated in Fig. 7 on the line 99, Fig. 10 is an end view of a four cycle engine showing this starting mechanism app 'ed thereto, said the dotted lines A and B mechanism adapted to stai t the engine in either direction, Fig. 11 is a view of the starting mechanism shown in Fig. 10 in longitudinal section, Fig. 12 is a sectional view of the starting mechanism on the line 12-12 Fig. 11, and Fig. 13 is a transverse sectional view of the device on the line 1313 Fig. 11.

In the drawings the numeral 1 represents J the base of the engine which has the three cylmders 2, 3 and 4:, and the crank shaft 5.

, The starting mechanism is secured to the side of the engine base and is operated by the shaft 8; which is driven by the ears 9 and 10 the latter being precisely dou Ie the size of the former, the object being to drive the shaft 8 at one half the speed of the crank shaft to'which the gear 9 is secured. It

will be clear that the starting mechanism may be driven by any suitably timed shaft onthe engine. 4

The starting mechanism 6 forms a housing for a revol uble valve 11 on the end-of the shaft 8 said valve serving to determine the interval of timebetween the discharges of compressed air when more than one cyl inder 13 used. This valve 11 is frust0 conical and rotates within a. regulating-valve 12. It has three channels 20, 21 and 22 through it, which are placed 120 apart. The regulating valve 12 has a handle 13 secured thereto which is intended to move the'valve'12 throughjhe angle indicated'b in Fig. 5, a. late 13 securing the valve either in the position A, B or G as indicated by the dotted lines on Fig. 5. The valve 12. is provided with the ports 17, 18 and 19 at the topand .with the ports 17, 18 19 at the bottom dia-. metrically o posite the upper ports. In the base of the casing, or casing of the starting mechanism there is a channel 16 which extends under all the orts in the valve 12 and into which a pipe eads from a tank 14, said pipe having a out off valve 1'. Leading-from the top of the casing 6 is a pipe for each cylinder, three cylinders being shown in the present instance, each pipe 23, 24. and

25 having a check valve 27 at its unction with the c l-inder. The a per portion ofthe inside of t e casin is core out enough to Pei-"- mit the passage 0 the air when the valve 12 ed to cut oflf the supply grim when the valve 12 is placed so its ports 17, 1 8 and 19 will be covered by the web-when the handle is turned to the osition .C.

For starting a two c'ycleen'gine in any direction it is only necessary to admit a charge pressed air against the piston head will take v afiecting thejvalves 11 and 12 in anyway,

place when the same has moved to the right of the dead; center at the beginning of-its To accomplish this -re-' downward stroke. sult'the channels 20, 21' and 22 are so placed as to be vertical each time the correspondingpiston has reached --its upper position, then. as the ports through the valve 12 are tothe I'l%-l11t-'0f the dead center the charge of air wi be delivered to cause the rotation of the engine to the-right. The valve 1-2 may then be turned by the handle to the position indicated on Fig.'6 ,'the handle being placed at the position indicated by the letter =B.-'In

this case the delivery of the air to the c 1- inders of the engine will .take place on the other side of the dead center .of the cra'nk'on its upward "stroke, and the crank shaft'will be caused to rotate inthe'opp'osite direction, as indicated by the arrow. on that figure.

Since the airis admitted to the engine only" during the explosion periodthe movement of the piston will take in its regular charge of gas, and when the mixtureis of-the proper quantity of fuel and air the explosion will take-place and the engine will continue in rotation without the assistance of the start-- 5 center of the'crank shafts will cause the ro ing device, the check valve' 27 held seatedb y the spring 28 in the plu 26 preventing theheavy pressures dueto t e explosions from and also preventing the airfromthe tank from passing into the engine cylinders.-

It will be understood by those skilled in a the art that'the proper cycle of operations will take place in a two'cycle engine regardcrank desire sired position. It is also-to benoted that wh'en'it is desired to stoptheoperation of 'thej'startin "device the valve 12' may be twtiigiycle or' a four cycle engine. In this form of the invention a valve casing 31' is to the engine cylinders. This casing is secured to the engine frame in any suitable manner, adjacent the crank shaft 5, Sand shaft carrying a. frusto-conical head 30.

This head 30 has a channel as long as the distance across all the pipes leading to the casing,-'and it isprovided with the ports 33,. 38, 39 and-40. The head'30 rotates with p in a frustmconical sleeve or valve 41 having a handle v41' of substantially the same construction asthe handle 13. The ports 33 I are placed immediately over' the inlet ipe 31 and the air is permitted topass to em through the ports. 32in thesvalve 41, said valve 41' also havingthe ports 42, 43 and 44 under the .outlet pipes. ports in .the head 30 are spaced 120 degrees apart. and since they are so timed as to reach their upper position at the same time their corresponding piston has reached its upper; position they will deliver airto the engme,

cylinder on either side of the dead center Now since the:

as may be desired, theports-in the upper I sideof the valve 41 being all. in alinementz The operation of this construction is as follows: The handle 41' is turned, as indicated in Fig. 9 in which case all thedischarges of compressed fluid will take place on the rightof the dead center of the several cranks, and,

the crank shaft will be turned as indicated by the arrow. To reverse the. direction of rotation of the engine the-valve 41- is placed so that its ports will be-on the'left of the up--.

per dead point and since'the ports381, 39. and 40 move with thecranks the". air .may.

be delivered to the cylinders at either side. I of the dead center by moving the .valve 41,;

in this case to the position indicated by. the;

dotted line B Fig.9, the. charges of air beingthen delivered on the left ofthe dead tation in the opposite direction from that first described. Since this valve rotates twice as fast as the valve shown in the first construction itnecessary to make .the.

ports and "channels therein larger their angular dimension'than in the: first case. The advantage of this construction is that side pressure of the air on the valves is.

"eliminated. This device may also be used for starting a four cycle en me if the head- 30 is secured to the cam sha' t of the:engine,.'

instead of to the crankshaft. In this case the head will rotate at one half the speed of the crank shaft, and the com -ressed air will be delivered to the engine cy inders once during each tworevolutions of the crank shaft and modification of the invention intended for I if a four cycle on 'ne is to be started by comchamber 56.within the valve 61. The head the width across all the channels 62, 63 andde rees from the channel 51 are two chanmg on each .stroke of the piston that the -therefo're necessary for the starting device s aced 120 de the purpose of starting a four cycle engine in elther direction. It isito be obsenved that ressed air or 0t er fluid, the impulses actregular valve system must be rendered inop-- erative during the starting period. It

to admit and exhaust the fluid from the enine cylinders during the starting period. he result above described is accomplished by the mechanism shown. in the drawings, the articular device being intended for starting a three cylinder engine. The housin or casing 54 is provided with a movable, va ve 61 having an adjusting handle 62" ada ted to be moved from the to t 0 position B; see Fig. 13. his casin is provided with the annular channels 53 62, 63, 64 and 71 connecting with the pipes 53, 65, 66, 67 and 71 respectively. The regulating valve 61 is provided with ports leading into each of t e'channels in,the casing. At the small end of the valve 61 there are four orts 55 o'penin into the channel'53, and'tiiere are four we s 7 2 across the casing which are adapted to close the ports 55 when the valve is turned in the proper position. At each of the channels 62, 63 and 64 there is a port throughthe valve 61, said ports be-,-

es from each other. At the c annel 71 s ere is a port throu h, the valve 61 for the purpose of allowing t e exhaust of the fluid from the engine .cylinders-to piassto the'exhapst pipe .71. Closely V t e valve'61. is a frusto-conicalhead 50 which is secured-to the cam shaft 49. This head terminates at. the ports 55 leaving a is rovided with a transverse channel 51 which has an opening 58 into the chamber 56, said channel extending entire through, the head from side to side, and being as long as 64. At the sides of the head and spaced 9O ne $52 which open into the annular chamber 69 at the large end of the head.

The pipes extend from the up er side of thevalve casing 54 to the to o the cylinders of the engine, each pipe Eein provided with a valve 68, only one of which is shown in the drawings.

Since the action" ofthe starting valve isthe same for each of the cylinders of the en 'ne the operation will be explained for on y onecylinder. Supposing the engine to be started in the forward direction the valve 50 is placed so the passage51 is in the sition indicated by t e dotted line A in ig. 13. Since this valve "rotates one half as fast as the crank shaft of the engine it will rmit the delivery ofthe -oompressed flui to the engine cylinder once during the-total osition A not illustrated herein.

travel of the piston on each revolution.

tion;of the crank shaft. for the reason that the ports in the outer valve are placed 120 degreesapart. By moving the valve 61 so that its port 60 will take the position A-or.

the position B, Fig. 13 the delivery of the air to the cylinder may be made to take place .on either. side of the dead center, thus caus direction so long as the regular valve system is rendered ino erative.

The air acts on the piston of the engine during the time the channel is passing the "port in the valve61, and until the following channel 52 reaches the same port, when the air is exhausted through the channel 52 into the channel 69,, through port 70 and to the air through pipe'71. As soon as the engine has started to turn over rapidly the handle 62 maybe moved to the neutral position and the'regular valve system is then thrown into cycle engine with a special set of valves or other means whereby it may be rim in either direction, and where'this attachment is to be applied to'an'engine it is contemplated that provision for some kind of reversing apparatus has been made, since the ycleo'f oper'a tions carried out by the regular valve system will run the engine in only one clirec-' tion. The means whereby the'engine is run in either direction after. being started forms no part of this invention and is therefore Sine the engine ing the rotation of the crank shaft in either shown has a plurality of cyl ders it will always start, but it will be "understood that the device is to. be used on an engine having any number of cylinders, although if the device is used on a"single. cy linder en-. gine'it might be necessary to move theengine. a turn by hand to place the piston int-he proper position to be started by this mechanism; After theengine has startedand the regular 0 cle has commenced the air-may be turned 0' either b closing thevalves 68, or by turning the va ve 61 so that ts ports55 are covered by the webs 72. will thus be seen that by simply turning the handle of the valve 61 the engine may be started in either direction, and that the engine may be stop d when running by placing the. handle the position for the reverse rotation of ,the crank shaft, although, of course,

it would be necessary to place the handle in.

the neutral' positionbefore the engine had started inthe oppositedirection."

and cooperating with the timed dlscharges of compressed fluid toan It will be notedthat; -wliile in thie ficcom.-' panying drawings the rev'o v-mg'an" t e r ulatin valve; are frusto-comcal, yet 111 i! possib e to, vary the angles of the 001105 from zero-to one hundrediand degrees or even more. cThis'means't at the 'va ves mightv be? cylindrical conical or might have the shapeoftwo di but suchcha as do not afiect the ,Gperation'of. the mechanism at all.

Having thus described my invention wh t; I claim as new and desire to secure-by Le ters Patent of the United States'is'as follows:

1. In a starting mechanism for explosion engines, a valvecasing, an oscillating valve in said casingyand a rotary valve in .the

oscillating valve, co6perating with the latter, to deliver timed discharges of compressed air to the engine cylinders, asset forth.

2; In an nginestartenavalve casing, a valve capable of a short oscillation therein, arevoluble valve in the first-mentioned'valve, latter to deliver engine cylinder, and means to change the position of the ports of. the first valve with respect to the valve casing, as described.-

3. In an engine starter, a valveca-sing, a valve'in said casing and capable of a short oscillation, a revoluble valve in the first; mentioned valve, andcoiiperating therewith 'todeliver timed charges of acompressed fluid ,to the engine cylinders, and means tovalvev in said casin secure the first valyein two operative and one inoperative posltlons.

4. In an engine starter, a valve casing, a

' and ca able of a short-- oscillation, a' revo uble va ve inthe first mentioned valve, and cooperating therewith to deliver timed chargesof compressed fluid to the engine cylinders, means to secure the first valve in two operative and one inoperative position, and means to deliver a com- Y. pressed fluid to.the valves, asset forth.

,5, In an :engine starte'r,,the combination with an engine of the explosion type of a valve casing .havin ports therein, pipes leading from the va' ve casing tothe cyllnders'ofthe'en ine, a valvein'said' casing? ca able of a s ort oscillation, a revoluble v va ve in the first-mentioned valve, and having ports which cooperate therewith, means.

to oscillate the first-mentioned valve, means to rotate the charges of cylinders, and .means to chan e the timeof delivery of the charges from to the cylinders, as set forth, f

second valve to deliver timed compressed fluidj to the engine e inner valve I 6. In an engine starter, the combination of an engine of the explosion-type, a tank for com ressed fluid 1o vllvecasing havm' g a plurality of the interior "as to cause the rotation of around its interior,

a .pipe' leading tothe engine cy thereof, pi engine and g i'omjthe tank to the casing, and two cooperating valves in said casin ada 'ted' to deliver charges of compre flui to the engine-cylinders in such periods the engine shaft. 7.-In-.an e with an exploslon engine of a pressure tank, a valve casing,

ating-valves v ada' ted to deliver charges of compressed fluid. om the tankto the engine cylinders invsuch times as to cause the rotation .Ofjthe crank-shaft, and means to change leading from thelcasing to the two contacting and cooper,

inc starter, the combination the position-of-one' of said valves to change 4 the timeof delivery of said charges so that the engine shaft may be caused to rotate in either direction.

valve in said casing and adapted to be oseillated through a short angle, a revoluble valve' in the oscillatory valve, each of said valv'es havin coiiperating means to, cut, off the supply 0% ner valve, and means to. place said outer valve intwo casing, where y the engine, shaft may be rotated in either directlon when the com pressed fluid in 'orth. V. v Q9, In' an, engine starter, the combination of azvalve CaSlIlg adapted to secured to the frame of an engine and hating channels .ply,-='a',pi'pe leading therefrom to'the casing, a pipe leadingto the wine cylinden two cooperating valves in t e casing one of wh ch is revoluble andv one.non-revoluble,

from the; two valves inay' be ftimed to start the enginein either direction.)

' 10. In an engine starter, thecombination sitions relative to the valve,

delivered thereto, as set 8. vIn an engine starter, a valve casing,

compressed fluid from the ina compressedfluid'supand means whereby theT'discharge. of fluid of a valve casing adapted tobe secured to an engine, a compressed fluidsupply-tank and pipe leadin'gto the valve casrn therefrom,

inder from the valve casing, two contacting and cooperative valves in the casin means to move one'of said valves to lschar'ge 'the I fluid under pressure at such t mesas to drive i the, engine shaft in either direction, and

ports ogf'the adjustable valve at a certain position, as described.

.11. In an engine starter, a casing adaptedto be secured to an englne base, a revoluble valve in the casing, a valve adapted to cause the revoluble valve to deliver charges of air,

to the engine cylinder at such times asto start the crank shaft thereof in either direction, and means to move thesecond valve so,

valve.

to be secured to an engme, a valve revoluble .m isa-id, casing and having'passages therein,

12. In an engine starter, .a casing adapted- ,it will cutoff the supply of fluidto the fii' stl I tatetthe second valve throug a considerable sages therethrou angle, and webs adapted to close the inlet ports of the second valve in one of 1ts pos1- tions.

13. In an engine starter, a casing adapted to be secured to an engine frame, a valve 1n said casing and adapted to be oscillated through a short angle, a revoluble valve in the oscillatory valve, and having channels therein, a pipe connected with the casing and the air supply tank, a pipe connectedwith the casing and cylinder of theengine means whereby the timing of the delivery oi a charge of compressed fluid to the engine cylinder may be altered, and means to turn e oscillatory valve so that it will cut off the pressure of said valve from the revoluble .valve, as set forth.

14. In an engine starter, a casing having a series of channels therein, and adapted to be secured to an engine, a valve in said casing and adapted to be oscillated through a short angle, said valve having ports adapted to deliver and exhaust charges of 'a compressed fluid into and out of the en ine cylinder, and means to vary the timing 0% the delivery and exhaust of said char es with respect to the rotation of crank-sha as set forth.

15. In an engine starter, the combination of a casing adapted to be secured to an engine and valve'capable of being oscillated through a short angle, a revoluble valve in inlet and exhaust pasmeans to oscillate the first valve, where 'y the time of delivery of an exhaust from the engine cylinders may be varied, as set forth.

16. The combination of a-casing adapted said casing having 7 to be secured to an engine, and having a' series of channels therein, a valve capable of a short oscillation in said casing, and having orts therethrough, a revoluble valve within the oscillatory valve, and having inlet and exhaust assages, means to move the oscillatory vave through a short angle and .means on the oscillatory valve to cut 0 the fluid supply. from the inner valve, as set forth. I

17. In an engine starter, the combination of a valve casin havin a series of inlet and exhaust channe s therein, a revoluble valve in the casingand having inlet and exhaust channels therein, a valve surroundin the valve and having inlet and ex. aust and a" series of intermediate ports which act both as inlet and exhaust ports,

and a su ply of compressed fluid adapted'to be used y the-said valves.

18. In an engine starter, the combination of a valve casi having a series of inlet and exhaust chann 's therein, an inlet and exhaust valve in said casing, a. valve cooperating with the first valve'to vary the timlng of valve,

with a valve casing having a series of chan* nels therein, an inlet pipe connected with the casing, pipes leading to the engine cylinders, an exhaust pipe connected with the casing, a revoluble valve in the casing and having a channel cut therein and adapted to permit the passage of the compressed fluid twice on each revolution thereof and having two exhaust channels, a Valve surrounding the first valve' and having inlet and outlet ports, and means to alter the position of the second valve through a considerable angle.

20. In an engine starter, a valve casing, a revoluble valve having orts therethrough in the casing, a valve :1 aptedto be turned through an an le of about degrees and having ports w ich cooperate with the ports of the first valve in each position of the latter, pipes leading to the engine cylinders from the valve casing, a pipe leading to a compressedfluidsupply, and means to out ofl the compressed fluid from the revoluble valve when the movable valve surrounding the former is in agiven position, substan- 'tially as set forth. v

21. In a ,startin mechanism for explosion engines, a casing aving aseries of channels therein; a valve adapted, to be oscillated through a short angle in isaid casing, and

having a series efforts therein; and a rotary valve ada te to deliver a series of timed charges 0 compressed air to the ports of the first ment-ioned valve, as set forth.

22. In a starting mechanism for explosion engines, a valve casing having a series of channels therein; an osci llatin valve havin a series of porits, in said casing; a rotary va ve in the o'scil atory valve, and having a series of ports therethrou h; said ports adapted to deliver timed c arges of compressed air to the engine cylinders, substantially as set forth.

23. In a starting mechanism'for explosion engines, a valve casing having aseries of channels therein; a valve capable of a short oscillation, and having a series of ports; a rotary valve having a series of ports, in the oscillatory valve; means to deliver compressed an to the rotary valve; and means whereby the rotary valve delivers timed charges of compressed air to the oscillatory as descri ed.

24. In an engine starter, the combination of an engine; a casing adapted to be secured thereto; a valve capable of being oscillated through a short angle, and having ports leading to pipes connected with each engine cylinder; at revoluble valve in said casing, and having inlet and exhaust passages therein; means whereby the inlet passage issupplied with charges of compressed air means whereby the oscillatory valve may be secured in two different angular positions, as set forth.

25. In an engine starter, the combination of an explosion engine, pressure tank, two contact valves, means to oscillate one of said valves through a short angle, means to 1'0- tate the other valve, a casingsurrounding said valves and having channels leading to the engine cylinders, and means to secure the oscillatory valve in a given position, as described.

26. In an engine starter, the combination of an explosion engine, a valve casing having pnrts'ther'ein, pipes leading from the valve casing to the cylinders of the engine to ported contacting valves in said casing, means to oscillate one of said a short angle, means to secure said valve in a iven position, means to rotate theother va ve to eliver timed charges of compressed fluid synchronously with the movement of the engine pistons, and a pressure supply tan connected with said valve casing, as described. 1

In testimony whereof I have set my hand this 9th day of February, A. D. 1909, in the presence of the two subscribed witnesses.

SZYMON J AOHIMOVICZ.

Witnesses:

FRANK P. MEDINA, EDITH W. BURNHAM.

valves through

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