US1099065A - Internal-combustion engine. - Google Patents

Description

U., M. LEBGH. INTERNAL GOMBUSTION ENGINE. APPLIOATIOH mmm 00T. a, 1912.

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INTERNAL GOMBUSTIGM I'SNGINEA aPfLloAT'lori MLB 00T. a, 1912 @www Jim@ 2, H4.

`G. M. LEBGH. INTERNAL GoMBUsTIo'N ENGINE. APPLICATION FILED 00T. B, 1912.

Pajtemd June 2, 19M.

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CHARLES IWI. LEECH,AOF LIMA, OHX.

. INTERNAL-COMBUSTION ENGINE.

Specification olLetters tentent.

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Application tiled October 8, 1912'. Serial No. 724,552.

ticular reference' to an internal combustion engine' preferably of the two cycle type, embodying novel means for regulating the feeding of the gas or fuel to the cylinder or cylinders of the same.

A further object of the invention' is to provide novel means to compress the explosive charge and feed the same to the cylinder;

A further object of the invention is to provide an engine of the above mentioned character, which lisstronggg, durable, and not liable to derangements.

Other objects and advantages of the invention will be apparent during the course of the following description.

lin the' accompanying drawings forming a part of this specification and in which. like numerals are employed to designate like parts thrgughout the same, Figure 1 is a central vertical sectional view through the engine, Fig. 2is a horizontal sectional view taken on line 2-2 of Fig. 1, Fig. 3 is a vertin c al sectional view takenA on line 3-3 of Fig. 1, Fig. 4l is ahorizontal sectional view taken on line [1-4 of Fig. 1, Fig. 5 is a side view of a stationary valve casing, Fig. G is a side view of a rotatable valve, and, Fig. 7 is a transverse sectional view through the rotatable valve, showing the same in a position to supply the compressed charge to the enplosion cylinder.

In the drawings, wherein for the purpose of illustration, l have shown a preferred embodiment of my invention, the numeral 8 designates an explosion cylinder, which is mounted upon a lower pumping cylinder 9, having' a larger diameter, as shown. Surrounding the cylinder 8 are radially disposed fins 10, inclosed within a jacket 11, `provided at its upper end with an air inlet opening 12. The cylinder S is provided with an exhaust port 13 and a plurality of inlet ports 14, which. lead into a common inlet port 15, as shown. A swinging valve 16 is disposed near the plurality of inlet ports lll and serves to control the passage of the eXn plosive charge into the same. Surrounding the lower cylinder 9 is an outer casing 17, providing an air space 1P, which surrounds the lower pumping cylinder 9 and is in free communication with the interior of the Jacket l1.V The outer easing 17 has a crankl case section 19 formed upon the lower end thereof, as shown, which is connectedwith a lower crank case section 20, for forming a closed crank case.

Mounted to reciprocate within the explo lsive cylinder' 8 is hollow piston 22, pron vided at its lower end with a pumping' piston 23, of larger diameter, as shown. The piston 23 operates within the pumping cylinder 9, as shown. Extending into the piston 2.2 is a pit-man 24, pivotally connected therewith by a transverse pin 25. The nu! mcral 26 designates a crank shaft, provided with a crank 27, shown. A pin 28 pivot ally connects the lower end of the pitman 2l with the crank 2T.

The numeral 29 designates a casting or housing formed upon one side of the outer easing 1'? and provided with a central longitudinal opening 230, for receiving a station-- ary valve casing or seat 31, provided near its ends and upon its upper side with openn ings 32, having free communication with a chamber shown. This chamber discharges into a port 3st, which leads into the inlet port lo, as shown. The stationary casing or seat 31 is provided intermediate its.

ends and diainetrically opposite the openings 32, withfa pair pf openings Se, which lead into ports 36 :uid 37, as shown. rlhe port '3l' leads into a port l-3, which. discharges tl'u'ough an opening 39 into a chain bei' at). The chamber rt() has communica tion with the pumping cylinder il through an opening fill., shown. The chamber 40 is entirely closed except for theopenings 39 and lfl.

rlfhe numeral 42 designates a port or mauifold which leads into the port Sti and has coinmunication with the carbureter to reX` lOl lbrought s d portsflli i vided near i is. ...on v, j lead into vious th valve 51B i. istration nh t. compressed e. into the rotatable tubular vaive. rEhe tubo-- lar valve i3 is held against long/it inal displacement by securing plates 50V 'Ti e tubular vaive is rotated by o pinion 5i, which is rigidly mounted upon the tinnuion 45. The pinion 5l is drven by a pinion 52, which is rigidly mounted upon the crank shaft Leading into the ehainber 33 is a pipe 33, connected with the upper end of o pipe 42a, which leads into the chamber l/v. A pressuie relief vulve structure is mounted in the upper end of the pipe to 'norinaiy 'orevent the beek ioiv of gas, but permittii the saine to return to the chain r i2 'when the n, ce-

i8 oi 'the tuoular d to move into reg- L eiungs wherebyY the charge mov he fed pressure in the port Se ence-eds e Certain i This veive structure includes e shell.

lim t. 54, formed of the upper end of pipe Within which is inounted li iding easing 55, receiving o valve stein 56 of a downward y opening valve 57.. r'his valve is norineii" held by e spring 5S of the desired stidness. fi Clamping ringV 59 retains the hoidinr easing; in its proper position and lthis Clamping ring is normally covered by a Cep 50.

The crank oase sections 19 and 20 ere pro vided i'espeetivelv with ily-wheel Casing,` seotions Gl and which forni a iy-Wlieei Casing having free Communication with the airspace 1S through an. opening The {iv-Wheel easing has its outer rido i'oi'ined en tirely open, s 'idlv mounted upon the crank si onibined fj;- vfheel and ian 6 its peripherg7 with ribs o; a u d at en angle with i'eiation 2o shown. i

The opera-1l loivs': iih en its downward munieation bei bv the 'e pumping evi^ il, 23 has reached its cover the e are in f l. the piston dost position to unheust port i3, openings 4S n with the openings 3Q, i messed charge contained Within Idie vziiv v is fed 'through port i5 end of the cylineoinbustion ere ie piston :22 L; the fresh der 8, vfhii beine' expolio now f charge fed 'thi erein and compress the seine prior to the inne when the seine is fired, Thieh, of Course, occurs When the piston is about to 1; pon its downward inovei'lhen the 23 nieves uppmsses thd charge fed in the i o, f charge is now fed into valve fl-3 when the oponin f' d8 niove into @tion with vthe ope ngs 49, which occurs vv ien the piston 22 is nearing its upf permost position.

A in this Way the oompressed eharge is stored Within the'rotatebie valve f3 until the openings 4 8 thereof move into registration with the openings 32, as above explained. The fluvivheei fan within its easing and sucks eir ironi the oir space i8, whereby said air is drawn downivnrdljv Within the jacket 1i and the easing i7 and discharged thronoh the opening 63 in'io the fly-Wheel easing. in this .manner the @vlinders are properlgr cooled.

lt is to be understood that the 'form of my invention herewith shown and described is to be taken as a preferred exemple of the saine and that certain changes in the shape, size, and arrangements oi' parts may beresorted to without departing from the spirit of the invention or the scope of the subjoined Claims.

Having thus described. rnv invention, Gleim;-

i. in an engine of the character described, an explosion cylinder, e pumping Cylinder connected therewith, a piston operating Within the expiosion cylinder, a pumping piston connected with the first nanied piston and operating- Within the pumping oviinder, a crank. shaft, pitinan connecteil with the oran; shaft and the first named piston, a Conduit for suppiving gas into tile pumping oyiinder upon the down stroke of the. puinpingpiston and reeeivinfr the eonipressed from the puinpi 4, upon the up stroke of the puinpin i second eonduit 1for supniving' the to the eiiplosion inder, ineans Vtroiiing the Communication between and nenied eonduits, and a ep`rv ielie valve disposed between t.'

second Tn -ned conduits.

ie ehereeter ler provided with ,dienst po l therewith, a :W ing vfitliin the er; i ing' piston connected with the Working piston and operating; within the'punipinVr evipiston operetinderi a crank shaft, a pitnian eonnectin osion ev inder, e p nipl ,nication between the gas suppy device and the supply conduit and having an opening formed through its Wall which leads into the `ihteror ofthe stime to allow of the passa-ge of the compressed gas into Sai tubular valve when the. valve is in one position and the discharge of Such compressed gas into the inlet conduit when said valve is moved to another position, means operated by the 10 crank shaft to rotate Seid Valve and means whereby the charge is automatically returned from the inlet conduit to the supply device when the pressure Within the inlet conduit exeees :i predetermined degree.

1n testimony whereof it aix :my sigimture 15

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