US950206A - Starting device for internal-combustion engines. - Google Patents

Description

R. J. GIBBON. STARTING DEVICE POR INTERNAL GOMBUSTION ENGINES. APPLICATION FILED APB. I7. 1908.

Patented Feb. 22, 1910.

Enmul ur y. lll mlllll Y lllllllllllllmllllllllmllll Il Il I HilllllxlHllllHr'v HHH [I llllll R. J. GIBBON.

STARTING DEVICE IOR INTERNAL GOMBUSTIO APPLIGATxoN IfILBD APR.17. 190s.

N ENGINES.

Patented Feb. 22, 1910.

fig ff. .Wifum /eyefe/f' jahwumnm R. J. GIBBON. STARTING DEVICE FOR INTERNAL OOMBUSTION ENGINES.

APPLIUATION FILED Ara. 1v. moa. l f 950,206. Patented Feb.22,1910. 4 I a SHEETS-SHEET s.

STARTING' DEVICE FR NEENAL-COIVEBUSTION ENGNES@ Speeiieatien of Letters Patent.

Patented Fels.

Application liled April l?, i908. Serial No. 427,607.

biies.

The object of the invention is to avoid the' necessity iorthe yuse oit' manual power in turning` the engine over to bring about the conditions necessary to the ignition ot an explosive charge therein, and it consists in a structure such as is hereinafter described and illustrated in the accompanying drawings, in Which- Figure 1 is a vplan View, conventionally shown, of the chassis or' a six-cylinder automobile 'With the auxiliary. inotor applied thereto; fig. 2 is a longitudinal sectional View ot' the auxiliary motor showing the engine shait or an extension thereotl in cross-section; Fig. 8 is a cross-seclion, partly in elevation of the automobile, showing a longitudinal sectional View of the auxiliary motor; Fig. 4 is a. longitudinal sectional View of the auxiliary motor on a plane pai allel With the engine shaft; Fig. 5 is a dctail of a pawl used in connection with the auxiliary motor; Fig, t3 is a detail longitudr nalsectional View ot' a charging pump used vin connection With the auxiliary motor, and

showing conventionally an electric igniting device therefor; Fig. 7 is a' detail section on the line 7-T of Fig, G; and Fig, S is a detail ofi apart of the pump shown in lligsK G and 7.

The chassis of an automobile is represented at 10 and its engines, six in number and arranged to act upon a single cranlr sl aft, are represented at 11, the crank shaft is shown at 12 ard the balance Wheel for the engine at 13.

At 14 is shown the usual radiator used in connection With the Water cooling` system oi suoli an engine.

The auxiliary motor, designated genemlly by 15, is mounted upon an automobile, preti erably forward of the radiator 1e, 1G being the forward end ci shaft or an extension thereof. shown as arranged horizontally neither its arrangement nor location is essential. The auxiliary inotor comprises a cylinder 17 Within which reciprocates a trunlti piston 18 connected. by ineans ot a pitinan 19 with an oscillatingvcranlt disl; 2O loosely mounted on the shaft 16, and co operating through the niediuinl of a spring pawl 21 with a ratchet Wheel fixed upon the shaft section 1G. The strolro of the inotor piston is of less length than the ratlial distance of the Wrist pin Q3 by means of Which the pitinan 19 is connected 'with the disk 2G, from the'center oit' the shaft 1G and consequently this Wrist pin does not pass the axial line or the cylinder. ing-or in stroke of the piston is accent plished by means of a spring; helically coiled about the shaft 1G and hav-ing one end attached to a wall the crank casi.- aiid its other end to the dislr YL0.

pawl 21 is provided with a heel Q6 which comes into engagement with a lng,- 2 formed on the hub of the piti'nan 19, at the the in stroke ot the piston, there'tfv Tft-- l d/ ing the nose ot the pawl out oi. engagement with the ratchet Wheel 22 to permit tie cngine shaft to turn backward Without injtirn to the auxiliary motor should premature nition oiq the engine charge occur.

The motor cylinder l? is provi led iz'itn an exhaust vent so located as to e n covered by the piston at the end oli its 'ont sii-olie, thus relieving the pressure nii cylinder. 'l also provided a sepolctain the i, here if,

mental exhaust port 2) near the inner of the ,cylinder 17, b t so located as; to be covered by the piston when in noi-incl position. port Qi) also cfzycred by an outwardly opening puppet valve 343 within a casing ll having' an external l ing yort 32, and providing a slidingVV betM l 33 tor the stein 3i of the valve, being held to its seat to close port 2t by means of the spring; The casing;l 231 provides an enter seat at 3G for tno valve 3Q. When an explosive charge is lired in the cylinder l? and starts the piston 18 on its ont stroke, the Valve 3G is forced to seat 36, closingl the port 32 and preventing the escape therethrough of the erpanding charge. es soon as the pressure Within the The recedi head 40, the outer end of the barrel beingy closed by a head 4I. `Withinl the barrel re- 'The suction action of the cylinder is relieved by the opening of the port 28, the spring 35'forces the valve 30 away from the seat sage of the remainder or the burned charge as the piston makes its in stroke, the valve again occupying its inner seat as soon as the piston has passed port 29. v

The explosive charge is introducedv into the cylinder 17 through the pipe 37 leading from a pump, whosebarrel is indicated at 38. This pump comprises the barrel 38, shown as, being suspended from ythe floor 39 'of the automobile by means of a flanged oiprocates pump plunger 42, controlled by means of a stem 43 carrying at its outer end a knob 44 or similar device to which pressure may be applied either b the hand or foot of the operator. reacts between the knob 44 and the plate 40 to retract the plunger. A spring closed inwardly openingintake valve 45 is located in the head 41 for the admission of air as the plunger recedes, and an outlet valve 46 permits the contents of the pump barrel to enter the pipe 37 leading to the auxiliary motor. The pump is provided with a' carbureting device comprising a barrel 47 depending from the head 41 and. within which there reciprocates a piston 48 provided with a port 49 opening to the barrel 38 and controlled by a spring seated valve 50. The pipe 51 leads from a' source of hydro-carbon, such as gasolene, not shown, to the outer end of the barrel 47, its connection -therewith being controlled 'by an inwardly opening valve 52; a plunger 53 is slidably mounted in the head 41, its lower end bearing upon the piston 48, and its upper endfbeing in the path of the plunger 42, the length of the plunger being such that when it is in its normal position, it will be engaged by the plunger 42 near the end of the out stroke of the latter, and will force the piston 48 to the bottom of the barrel 47 thus driving the contents of this barrel through the port 49 into the barrel 38. By this operation the l liquid hydro-carbon introduced into the pump barrel remains and is taken up by the air enterin of the pump p unger, thereby carburetinff' the next succeeding charge. -A helical s ring 54 reacts between the head. of the p unger 53 and a suitable ,seat formed 1n the head 41, and raises the plunger 53 upon the recession of the lplunger 42. in stroke of the plunger 42 not only the valve 45, but also raises the piston 48 and refills the barrel 47 with hydro-carbon for use in carbureting the next charge received into the barrel '38 of the pump. A

manuell controlled valve' 55 is reerably located in the pipe 5l to out o tiie connec- 36 and 'permits the pas-v A helical spring 46v during the out stroke drives the air past' tion between the gasolene tank and the pump, as for purposes of repair. e

An igniting device for the auxiliary motor is shown, com risin an ordinary liump spark plug 56 ocate in the head of the cylinder 17 a battery 57, a spark coil 58, and a circuit closing device comprisinga spring contact piece 59 mounted upon the pump head 40, andarranged to engage an appui"n tenance ofthe movable' member of the pump, such as the knob 44, as the plunger 42 reaches the end of its out stroke. l

-The operation of the device is as follows: The piston 18 of the auxiliary motor always comes to rest at the inner end of the cylinder 17, leaving th'e pawl 21 out of engagement with the ratchet wheel 22. When it is desired to start the engine, the plunger 42 of the, charging pump is forced down, preferably with a rapid stroke, driving the carburetedl air within the pump barrel 38 to the cylinder 17 land ivniting the charge within that cylinder by ctlosing the electric circuit at 59. The piston 18 is forced downwardly, the awl 21 engaging the ratchet wheel 22 at t e commencement of the stroke, and thereby turning the shaft 16 ,and setting the engine in motion, whereupon the explosive charge therein is ignited by the usual means. The piston 18 of the auxi iary motor is kim.- mediately returned to its normal position u'pon the opening of the exhaust ort 28 by the action of the spring 24. Shou d a sin le operation or' the auxiliary motor not be su i cient to start the engine, it may be repeated as many times as may be necessary.

The richness of' the charge delivered to the auxiliary motor ma ing the stroke of the p unger in the carbureter. As a means for accomplishing this variation there is shown a central core 60 for the pump piston, which extends through the piston and serves as the abutment for engaging the plunger 53. This core is in the form of a rod having a threaded engage- 'mcnt with the piston, outer end is slotted, show-n at 62, for engagement by a screw driver. By adjusting this rod longitudinally the point in the stroke of the pump piston at which .the plunger be varied by vary- 1 as shown at 61, and its 53 is engaged is varied and thestroke of the carbureter correspondingly changed.

While theexhaust valve 30 of the'auxiliar'y 950,206 p bi piston, the inner port being covered by the piston at the end of its in stroke,l and a valve for the last named ort, ope'nable only during the in stroke ci) the piston.

2. ln combination, a single impulse internal combustion motor, a charging pump for the motor, means actuated by the pump plunger for carburetin the charge, and means controllable by te the charge.

3. In combination, an internal combustion motor, a charging pump for the motor,

means actuated by the pump plunger for cai'buieting the charge, and means controllable by the pump for firing the' charge.

4. In combination, an internal combustion motor and a charging pump therefor coniprising a barrel having an air induction port l and a delivery port communlcati'ng with the motor, and a plunger reciprocable within the barrel, and a carbureter comprising a barrel having an induction port and'a piston reci procable in the barrel and havinga duct' leading to the pump barrel and an automatic valve therein opening toward the pump, and astem for the piston projecting into the pat-h of the pumpv plunger.

In combination, an internal combustion motor and a charging pump therefor comprising a barrel having an air induction port and a delivery port communicating pump for tiring with the motor and a plunger reciprocable within the barrel, anda carbureter comprising a barrel having induction and delivery orts, automatic valves for such ports and for the piston projecting into the path ofv "e pump plunger.

6. A charging and tiring device for internal combustion motors comprising,- in combination, a reciprocating pumphaving a plunger, a carbureterdelivering tov the pump barrel and actuated by the pump plunger, and an electric ignit-ing system having a circuit closer actuated by an appurtenance of the plunger.

7. A single impulse internal combustion motor comprising, in combination, a cylinder, a piston reciprocable therein, an exhaust port so located as to be uncovered by the piston at the end of the outstroke, an exhaust port adjacentthe inner end of the cylinder and so located as to be covered by the piston when at the end of its instroke, a valve movable outward to close the last named port, and a spring holding'the valve away from its seat.

. ROBERT J. GIBBON.

Witnesses Loms K. GILLsoN, E. M. KLATCHER.

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