US1458345A - Link-joint-connecting rod - Google Patents

Description

.11unei12,1923. 11,458,345

J. KONAR LINK JOINT CONNECTING ROD Filed April 11. 1921 INVEN TOR.

Patented .lune i2, lQZfi.

JOHN KONAR, OF CHICAGO, ILLINOIS.

LINK-JOINT-CONNECTING ROD.

Application filed April 11, 1921. Serial No. 460,562.

To all whom it may concern.

Be it known that 1, JOHN House, a citizen of the United States of America, and a resident of Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Link-Joint-Connecting Rods, of which the following is a specification,

My invention relates to improvements in crank operated connecting rods and the object of my invention is to afford a linkjoint between the connecting rod and the crankpin for adapting the rod and a therewith connected workhead to leap by their projectile and centrifugal forces beyond the usual dead center and to return by similar forces, or with the aid of a peculiar cam attachment.

My linkjointed rod is simple, durable and efiicient to improve an ordinary four cycle gas engine by allowing the piston to drive its scavenging stroke into the very compression space for a better disposal of the overhot dead gases.

Fig. 1 is a side view in elevation of my linkjointed connecting rod and illustrates the rod in its'fully stretched and projected dead center state, as for instance at the end of the exhaust stroke with a gas engine.

Fig. 2 is a side view in elevation of my linkjointed connecting rod, and illustrates the rod with a cam attachment and progressing to finish the intake stroke by clasping into the collapsed position of Fig. 3. which illustrates a ready condition for a new stroke, as for instance for compression after intake with a gas engine.

Fig. 4 is a side view in elevation of my linkjointcd connecting rod and illustrates the rod partly extended in a transient projecting condition to reach the position of Fig; 1.

Fig. 5 is a side-view of Fig. 3, as seen from the direction of the broken line 1.

Fig, 6 isa side-view in elevation of a modi fication of my linkjointed connecting rod and illustrates the rod in a lower dead center position. as indicated by the axis line 1.

The broken line 1 represents the longitudinal axis of a cylinder with a vertical four cycle gas engine.

The crank shaft 2, usually suitably mounted, has a web 3 and thereon a crank pin 4 with an orbit indicated by the arrow circle 5.

On the crankpin is journaled a box 6, from which projects a linkend with two orifices 7 and 7".

The connecting rod 8 may be attached in a usual way, in this case by a wristpin 9, to a suitable work head,. as for instance to a piston of a gas engine with this my selected exemplification. The crankend of the connecting rod has a loop 10 to slip between the orifices 7 and 7 for engaging the linkpin 11, that is inserted in said orifices; thereby the rod is hinged to a linkpin, that combines the loop 10 with said orifices into a linkjoint to swing with said linkend on the crankpin and therewith affords to said crankend a radius of oscillation at a distance of said crankpin and thus enables the rod to leap beyond the usual headward dead center terminal.

From the crankend of the rod projects towards the box 6 a heel 12, which in Fig. 3 is shown set on the box to give the connecting rod a better support on the crank pin during the compression, during the power stroke and during the first half of the exhaust stroke.

When the crankpin, ascending for the ex haust stroke (s in Fig. 3, passes about 120 degrees upward travel, the high speeded piston and the connecting rod start a leap by their faster projectile force and fiy away from the crankpin towards the upper dead center; they distance the heel 12 from the box 6. and simultaneously upturn the linkjoint into the subsequent positions of Fig. 4 and Fig. 1. The upturning of the'linkjoint is accelerated by its own centrifugal force and by that of the crankend of the rod. In the transient course from Fig. 4 to Fig. 1 the crankpin wedges the link against the linkpin, pries thereby the linkpin further out of the orbit 5 and insures the elevation of the connecting rod and the piston into the extreme exhaust dead center position of Fig. 1. Near the end of the exhaust stroke the fast airpush behind it also helps the piston to project. By the said combined forces the connecting rod stretches its linkjoint to the full extension. as shown in Fig.

1, and aids the piston to forerun the radius of the crankpin and to push into the very compression chamber for expelling from there the overhot foul gases effectively even against the resistance of a muifler. that is used with automobiles.

From the position of Fig. 1 the crankpin pulls the connecting rod with a stretched out linkjoint and with ever increasing speed towards the position of Fig. 2 during about ii -Fig. 8; thereby the friction from the cran'kpin on the box 6 also helps to turn the 100 degrees of the intake :stroke,when the piston at its highest speed jumps in a straight course tpwvards the lower dead center, whereto the crankpin is racing in a curve. There then the gravitation and the projectile force of the piston and the tangentially inclined connecting rod combine with the centrifugal force of the lower rodend for driving the also centritugally disposed link'joint in the direction of the arrow 13 and towards the orbit 5, so as to clasp the linkjoint into a collapse, as shown linkjoint in the direction ofthe arrow 13. Ordinarilythe mentioned inertia forces are 'su'flicient to collapse the connecting rod into the finished intake position of 3.

, Friction, too much vacnu'm'in the cylinder or an overturned position o'fthe'engine may retard the clasp'ing of the linkjoint; then more positive clasping means are. afforded by the cam 14 and the roller 15. The cam 14 is with one side attached to the crankend so as'to have a side-clearance towards the Web. The cam 14: is curved upward from the vicinity'of the end of the heel '12towards theaxis'o'f the rod. In parallel alignment with the crankshaft'is a stud projected from "the web tocarry the roller 15, that is suitably locatedto meet thecam 14. After the connecting rod reaches the position of Fig.

'2, the roller 15 runs aloiigjthe cam 14 and pushes it'to'gether with the linlrjoint into the finished intake position of Fig; .l which is theinflexible relation of parts with my link- 'joint rod during the compression stroke and during 'firing.

The roller and cam-action insures a speedy return of the piston and a high end velocity of the intake, whereby the new all fuel i expulsion of the overhot foul gases from the,

charge is "pneumatically rammed into den sity within a well ventilated space, which is a big gain, especially with engines working in a rarefied atmosphere, as in aviation. By

compression chamber the volumetric capacity' of theintake is so inuch'increased; simultaneously the quality of the new charge is improved by the absence of dilution and *"heat expansion through hot dead gases. The 'larg'er,'cleaner, cooler andtherefore denser new charge develops withthe same amount of compression a muchhigher pressure during firing, which again improves tot'al. in-

flammation and combustion, is moreconflagrant to carbon deposits and thereby "eliminates troubles, permits more compresforusing the lower grades of. 'fuel. I

sion without danger to pre-ignition and increases power e'fliciency per pound of engine and per pound of fuel Wltll a widened range The high endvelocity of the intake in- 'suresa quick completion of the fill ingand permits more ease in closing the intake valve. Also more time f'and ease 'is gained for the closing of the exhaust valve by the quickened scavenging, that the forerunning piston :produccs, as indicated in Figs. l and 1.

On thecrankend is opposite from the heel.

12 a duplicate heel 12 and opposite from the v .connecting rod 8 has a heel-like base, that .is shaped to 'match'the top of the box 6 to have thereon a broadercsiipport. From one side of the base extends a pedal towards the loop 10 to engage therewith the linkpin 1.1,

that forms with the orifices 7 and 7 a linkjoint on saidlinkend, whereby the pedal is adapted to sw'ingthe connecting rodwith the linkend upon the crankpin, Projecting from the loop 107 is a st0p 16, which bears against the linkend and bars the 'linlrjoint' from annndue tilting over the dead center,

' when the rod 8 isin similar positions asthe rod 8 isin Figs. 1, 2 and 4. "In Fig. (Sis also shown a cam 14 attached to the webs to" meet a roller 15 that is pivoted near the cran'kendo'f the rod which cam and'r'oller V dlsposition 1s a reversal. and an eqinvalent transposed location o'f the cam 14:: and the roller 15.

Tl'ielerigtho'r" my linkj oint connecting rod "in a: collapsed state, taken from crank'pin. to

Wristp'in, is equal to'the no'rmal, length otlan ordinary connecting rod. By ,the ability .to

. collapse from its most extended length into said normal length, the link affords *[ieXibility to saidconnecting'rod and therewith lost motion and latitude to skip its extending and the forcing'of said piston into the -compressionchamber atthe end/of the .com-

pressiohstroke. v Duringth'e compression stroke with a four cycle gasjengine the linlqoint'rod 1s pressed-by the cranlragainst the piston and 1 the resistance of the compressed charge and.

therefore is unable to extendiromthe settled position of Fig. 3 to'get against closed valves, as for firing,"into. the position of" Fig.1, that shows the'rod in a state of exhaust "end extension and is only possible, when no compressionresistance hinders the inertia of the piston and'the rod. W Vhile my 'l inkjoint rod able "to extend during "the exhaust stroke-in combination "with tour cycle -gasfeng ine forl etting the piston inside the compression chamber and expel the foul "gases, the main advantage of said rod resides in its ability'to return during'intake time to the inflexible position of Fig. 3, and

to keep that position by automatically skiphammers, chisels, knives, saws, pui'npworks and the like other workheads,whereby the lost motion, afiiordedby the linkioint, aermits the workheads to exert their momentum on the work with a range of safety to the crank, when an undue obstacle is met by the workheads, as for instance with varying work dimensions in forging. The crank movement may. be inclined, horizontal or turned upside down for special purpose; the length of the link may vary also.-

I claim l. i With a crank movement having a suitably guided workhead, a rotative crankshaft provided with a crankpin, a link having one of its ends rotatably fitted on said crankpin, said link having near its other end a linkjoint to engage therewith the crankend oi a connecting rod a connecting rod linked with its crankend to said linkjoint and having at its other end means to engage said workhead, whereby during speedy dead center transitions of the crankpin said linkjoint is free to yield and to release said connecting rod and a thereto adapted workhead for ex;- tending by combined inertia their travel beyond the radius of the crankpin and whereby said linkjoint also 'a-ftords flexibility to said connecting rod and herewith lost motion and latitude to said crankshaft when an undue obstacle is met by said workhead \Vith a. crank movement having a suitably guided workhead,1a rotative crankshaft provided with a crankpin a. link having at one of its ends a journalbox and bearing therewith rotatably on said crankpiin said link having near its other end a linkjoint to engage. therewith the crankend of a connecting rod, a connecting rod linked with its,

crankend to said linkj'oint and having at its other end means to engage workhead whereby during speedy dead center transitions of the crankpin said linkjoint is free to yield and to release said connecting rod and thereto adapted workhead for extend by combined inertia their travel beyond the radius 01": the crankpin and whereby said linkioint also adords flexibility to said connecting rod and therewith lostmotion and latitude to said crank-shaft when an undue obstacle is met by said workhead, a heellike side projection extending from said crank end adapted to engage said journalbox as a support to said connecting rod.

With a crank movement having a suitably guided workhead, a rotative crankshaft having a web provided with a crankpin, a

link having at one of its'ends a ]ournalbox and bearing therewith rot-atably on said crankpin, said link having near its other end linkjoint to engage therewith the crank-v end of a connecting rod, a connecting rod linked with its crankend to said linkjoint and having at its other end means to engage said workhead, whereby during speedy dead center transitions of the crankpin said linkjo-int 18 free to yield and to release said connecting rod and a thereto adapted workhead for extending by combined inertia their travel beyond the radius of the crankpin and v whereby said linkjoint also affords flexibility to said connecting rod and therewith lost motion and latitude to said crankshaft when undue obstacle is met by said workhead, from said crankend protuberant towards said web a cam, located between the ends of the web and projecting from the web towards the path of said cam a stud bearing a roller and aligned to meet and to positively actuate said cam and therewith said linkjoint connecting rod into return-to their rear terminal. i

4;. lVith a crank-movement having a suitably guided workhead, a rotative crankshaft having a webprovided with a crankpin a link having at one of its ends a journal box and bearing therewith rotatably onsaid.

crankpin, said link having near its other end a linkjoint to engage therewith the 'crankend of a connecting rod, a connecting rod linked with its crankend to said linkjoint and hava ing at its other end means to engage said workhead, whereby during speedy dead cen ter transitions 01" the crankpin said linkjoint is free to yield and to release said connecting rod and a thereto-adapted workhead for ex tending; by combined inertia theirtravel beyond the radius oi 'the crankpin and whereby said linkjoint also affords llexil'iility to said connecting rod and therewith lost motionand latitude to said crankshaft when an undue obstacle is met by said workhead, from said crankend protuberant towards said web a cam, located between the ends of the web and projecting from the web to wards the path of said cam a stud bearing a roller and aligned to meet and to positively actuate said cam and therewith said linkjoint connecting rod into a return to their rear terminal, from said'crankend a heellike sideprojection adapted to engage said journalbox as a support to said connecting rod.- i

5. lVith crank movement having a suit ably guided workhead, avrotativ'e crankshaft provided with a crankpin, alink having at a connecting rod having with its crankend,

ah'eellike base shaped to bear upon the top" *ofs'aid journalbox, extending sideways from thereto adapted workhead for extending by. 'combined inertia their-travel beyond. the ra-' dius' of the crankpin and" whereby saidllnk- ,V

joint also affords flexibility to sai'd connect ing rodand thereby lost motlon' and latitude tosaid crankshaft when anundue obstacle is met by said workhead.

6; In 'co'mloination*with a fourcycle g engine having a movable pistony a rotative crankshaft having a web and thereon a 'crankpin, a link having at one of its ends '20 a'jou rnalbox and bearing therewith rotatably on said crankpin said link having near its other end alinkjointto engage-therewith the crankend ofa connecting rod, a connectin'g rod linked withits crankend to said linkjoint vand'having at its'other end'means to" engage said piston, whereby "during speedy.

dead center transitionsof the crankpin said i linkjoint is free to yield in order, first, to

v release said connecting. rod anda thereto} "adapted-piston for extending by combinedv inertia their exhaust stroke beyond the radius ofthe 'crankpinto let said piston leap i I inside the compressionchamber' and displace the I exhaust residue, second, to enable said;

piston to return by inertia to the'end of the intake stroke and, third, to afford-flexibility V to said connecting rod and therewith lost -motion and latitude to said crankshaft to skip forcing? said vpistonv into the compression space during'the compression stroke.

-,7-. In 'combination' with a fourcycle gas crankshaft having a web and .1 thereon a crankpima link? having at one ofits ends a journalbox and. bearing therewith 'rotatably on said crankpin, said link having near its fother end 2t -ll11lqO1I1t to -engage therewith the'crank end of a COIHIQ-CtHIgIOCl, a connect,

joint and having at itsr other end means to engage said pist'on,,whereby during speedy the exhaust residue, second, to enable said" 6 piston to return by inertia to the end of the intake stroke and, third, to afford flexibility to'said connecting rod and therewith 10st motion and latitude to saidcrankshaft to skip forcing said piston into the compression ing rod linked with its crankend to said link-' pression and the power stroke and during part of the exhaust stroke.

8.: In combination with a four cycle gas englne having a movable plston, a rotatlve crankshaft having a web and thereon a crankpin, aflink' having at oneof its'ends a j ournalbox and bearing therewith rotatably on-said crankpin, said link having'nearits otlierenda hnkjoint to engage therewith the "crankend of a connecting rod, a connecting rodlinke'd with its crankend to said link was joint-and having at its other end means to engage said piston. whereby during speedy adapted piston for extending 'by"combined inertia their exhaust stroke beyond the ramotionand latitude to said crankshaftto skip forcing :said piston into the compres- I s1on-space-dur1ng the compression stroke j v a y i y from said crankend protuberanttowards .dead center transitions" of the 'crankpin' said link-joint is free to yield in order, first,- to release said connecting rod -and a thereto said web a cai n, 'locatedbet'wecn' the ends of'the Web and projecting froinllthejweb towards the path er. said a stud bearing a roller "and'aligned to meet and to positively actuate said cam andtherewith said linkjoint connectingirod' into returning I said piston to thefend of "the intake stroke. 9..VVith a crank movement having a suit- .ably "guided -WOI'kl16fad .a singular rotative engine having-a movable piston, a rotatlvef crankshaft provided with a c'rankpin, alink having-one of its ends rotatably fitted on s u speedy dead center transitions of the crank- Y pinsaid linkjoint is free to yield and to release said connecting rod. and a thereto adapted workhead for extendingbycombined inertia their travel beyond the radius,

of the crankpin and whereby said linkjoint also affords flexibility tosaid connecting rod ,and therewith lost motion and] latitude to said crankshaft when an undue obstacle is met by'saidworkheadfi JOHN KONAR.

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