US1785308A - Valve push rod - Google Patents

Description

Dec. 16', 1930. a. R. HEIMENDINGE'R VALVE PUSH ROD Filed May 20. 1929 all/Illa uurlflirllfffrllh [nvcnior Z31 fis/hkand/kyer I iiorfzey Patented- Dec. i

r This invention relates to an improvement in. valve push rods for. internal eomb ust ion j i 'engine'g' and particularly applies to the type :of engine known asjoverhead ValVekindyandil an ob ect of the myentlon s to overcome the difficulty heretofore experienced inthisltype L of engine, of securing noiseless-end efiicient g Whereas it: hasheen heretoforethepraetice vide a-jfiuid film atith'e points ofclearariee; in h P h bds t m ear andtearon the abutting {parts I th o j q z nre it nie fe to P3 wide iii ajmanheres hereinafterfset' forth, a1 f push rodof-the' character referred to, which; is

valve operating mechanism; I

Another object; of the inveiiti'oii; to pro-Q vi e :f r 'c emj'a e n the: p-u hw o t e fifi to p v d "cleaml wwher t e'qp is a of the: overhead typecof alve in an internal ,cpihhusti0nengine, to proyideolearanc e of approxime-telyf.008- i1iohes between one end of the rocker arm andthe upper ,erid'fof the Valve stem. :Atf this-point it heeheen cori- 'sidered' impractic'aljito providelubrication r roker arm 'ztndi fromfthis; source 7 chines most o-fthe noise and rattle whlclithls invention between the valve 'etem and the e d dune Valve stem. gonftagtf withtleopposite end slof the;uppeilehdf'of the push ,rod' is usiial ly the rocker ja m,"yvhile a tthe sametirneto proven -(noise an m u strong, compact and durable,tthoroughlyreli ablein its operation,highlyeflieient'forits'iri- V I tended purpose,- verys'impleinits methodof,itqt-hattypeo M aesembly,;adaptable{ for use instandstrdgoverfrom the; ,pended. -1 Inthe j'chawii gs, i whereinh Characters denote j eorr head valve types of internalcombustion"erg-i i gmes and com ufapture andqnstalh V, i,

, View, the;ir vention' consistsrin:the 'noveL eon z; istruction, combination ar d iar rali g 'emerltbf. *P iifi fl -ill beh re'i ef e h re spwi e l y it 2- described and illustrated i the eccompe riye; ng wing iw er in; f id es' an embblc. "m n o thei t fii tiisfio w l e stood that chargg'es yariatioi s and .modifica j i n maybwewte 0;. witlie td e ti t spirit of; theeelai ns hereiu to arpj paratively inexpensive to man;

. With the foregoing alid e c ts ""n referelice ragmenta ry e h rod in accford- Fig u F6 12 is he sair e-ifiei v bi g' tpe -t l i II-""*"" fseetgienyfz-'ha ing the opposite, ends thereof 1 "abutti'nga 'airist th'elowered esof the; socket I ar d the uppered gejo jithelehoplkier iO ijg iTheJ0 v provided within: ball, jointwhibh ie'seatedin v verylittle clearance .is'required at this poilit,"

eliliii'nate theislappingforfliioise at this end and fine adjustment is t euztllyprovidfed. It it to ben'olte'd -that th SOGket may hepreovid ed Y withlubric tipn which has theten der cy to.

i i i I i 70 i of theroeker'arrh ;It -is toib e understood that the present inv' f hes" a v ell 1'0" skier ai'nf 'tjnstri1'ctio iwhich on the push. rod end; of the rooklerarmgwhih-is Seated iii @sogketformed ter thaii' the remaining portions 1 mending; pningj '9,,.w"hi'ch,forms a 7.. 7 .P r" ection thefeofj s lr dleatedj ate-6, Wh11e the V 119 is ienh r ei s ndi at at the iowizfer eildlo f -theuppjer s e ctionfi irs'jfo rmed h "outer wallszofwhich a reiof 1 7 85 oi lthiepp p'er seetionfand is gproi idedwith an 1 erall y projecting sltiolulder 10' oriried' 'hteririedia'te ;.the opposite ends} of "etioh in spaeed; feiation ib the, i ii'dhjhelialeoii 7 i te'rminatesjin'communication." vith'tliecenter passage "18 conducts o l'from the'socket con q Inthe modified: form of thelinvention l X discfltil and communicates with the passage I: 13 fort conveying" tl l 'oi lilfilfii therethrougln i The ' chaiinels 17,18 provide minute reservoirsi' 1' concavitiesis a separator membegza of in lower end'12 ofitlielower section 7 may be e modifiecl'in any suitable'mannerto engage theic am fnot' shown inthe. drawings) of an internal combustion engine which operates;

the push rodin the conventional manner.) 7 Extending along the axis of; the upper .sec

; tio'ii g6 from the socket Knot ishownQin' the 3;

- drawings) *is a circul'arf passage 13; that members. i

:Inthe application of the push-rod in accordance withthisinvention, all of the clearances heretofore used between the upper end arm and between the valve stem and the other i v reasonofthe fact that clearance is provided of th'eiinner. wall' 14 ofothe socket 8a\ 7 The e yl he present invention. Another diflicuity nection with the rocker arm? down intotl e; providing cle'arame between/E5118 Valve S socket- 8 and forms a film between the upper; end of the lower! section? "and the-inner wall 1 L of the socket to .c'ushionthe eflect f f the noise" and atjtheisame time lubricate the abutting parts, rea'sitin of thisjstructure,' it has been foundf experiment a v clearance of as much 'as.O15-inchesmaybe t g p g y og that; the 'pjr ofvided between the. inner wall; of th top ofthe valve stem with one endoffthe I'GGk', socket and the upper ei'id,ofjtlie lower section 7 [without increasing thefnois ej or-oausing any I f 111 fieotonthe op ra-non ofthe valve; What v n se v i p wh 't *has been said with respect totheforni shown anc e' maintained at theupper and lower "in Fig 1 in d to the 'i 1 a 3 3p. portions of the sectional push rod and at 16; fplies' t th oth r difi d f rm f thefi QQ' and 25. 1 Since the points of con-tactbeventio'n 'to'fbe preseiitlyireferred"to; '2 -':tween the inner wan o f th e socket and upper el ldioff tll' pushIOd' orthe disk, theba-l-l and shown a Of e ring p rticularly thereto; theonlyldiro e l i he endit is o be'neted fzfereiice structure involved 'tliei-eiiiisthat that. the:invention' 'as disclosed in Figures 2,

6a circular-disc 16 havinga plurality ofradiat V ing channels ,17', 18,:on'jthe upper and lower 'fa'cesthereofis interposed in the socketffi 1 bet'ween the'iinnerwall 14 thereof and the i upper end 15 of the lowerisection 7. {An opening l9' extends through the axis of the wear and tear'or for other reasons there is.

point of making the same-stick in its seat.

er arm, theopposite endgof'therocker arm" with the upper, end of the push rod to' prenoise Thedisk 16 may be replaoe'dby'a 1mm creased number of films for the same purpose.

What is claimed iszfi Q1. In combinati andtheuppe'r end-of the lower section movably confined insaid "socket, a shoulder and alsocushionsbetweentlie abuttingzparts" V t I t formed'on said other section intermed ate the '15 of at; iower section" ans-the inn we fi' [of theisock te lnltheim'd edges of said socket; a" coil; spring circumof the" drawingsand referring 'rti cularly; ;:.the'ieto, allfparts; areforn'iedl 'i' a si'niilar N k I w 'inan i ier with the exoeptioiistobenotedij Therand the'iedgesflo'f the socket for urging said exceptions beingftliat'tlie:innerg wall otthe"jsect-ionsapart-{sa dupper sect onihaving a socket is; fOrmeidTwith; anarcuatefo'oncavity j20; an d the upper end 159i theloiversection 7 J I t p 7 V is" also formed with fanal enate concavity; 21, with said so k Q onducting oil'iln Q h foriseatingbetv jeen th ir pm aball- 22, "socket-to formfa film to provideaoushionfor from the ep eia end "and in j communication dei; formed on said other secti'on intermediate {theendsfthereofandiii spaced relation to the e qfi e d se k t, a co l spring e r ump about said other section fhaving its opposite gi'ighedjwiuijufi :l6neayityi 23;

1' "Movably supported;

between i A eii'd -i --abiitn wi ifle, te'gral double ,coni'cal formation.

of the push rod and theonejend of the rocker end of; therocker 'armunay be eliminated by 7 oppositelends in abutment-with saidshoulder 22, and the member 25, a e sepa ator overcomebythe presentinvention is that in and the rocker arm of theotlier construction -when "great clearance occurs byreason 01; V

v r, so" danger-of burning or scor ngthe valve to a J :The spring 111 when in use will hold all V 3 andlprovides'twooil films toovercome this 7 be rfof abutting disksfwhich w ill"have an'in t on with an iiitei'nal"'conibustion engine,'a sectional push rod the upv per of said sections being formed with a socket ends{ the reof and in spacedrelation to the passage extending *a-X'iall'y therethrough j I iflmlmod cat h'o i liigu 17 h a et insre aj i q 1 o i fand referring particularly thereto5'jallf of 2 oom' atioiiwith an e l 1 sojcliet and the upper jendjof thet lowerflsec geonmovabiy COilfiItBClijlIl said socket,- ashoul a v houlder an the I edges of the socket for urging I sections apart, saiduppei" sectionhaving apa sage-ex tending axially therethrough fromthe' upper end and in communication with said socket for conducting oil into the socket to form I V a film to provide a cushion for the abutting '5 parts, thepoint of discharge of said passage "into said socket being the center of the I 5 and the upper end of the lower section inov abutting parts; a

- 7 3,111 combination With an internal'com- I b'ustion engine,'a sectional 'push rod;;the up- 10 per of said sections being formed with a socket i H ablyconfined in said socketf'a shoulder formed on said other section intermediate] the ends thereof and in sp'aced' relation to the edges otsaid socket, a coiljspring circum v posed about said other section having its op- "*posite ends inabutment with said shoulderf' and the edges of the socket for urging said sections apart, said uppersection havingaj.

' 270 passage extending axially therethrough from" i j the upper end and incommunication with V saidsocket for conducting oil intothe socket to form a film to providea cushion'for the abutting parts, the point of discharge of said 'passageinto said socket being inthe center of theabutting parts,ja separator member 1 movably confined in the socket betweenthe V inner wall thereof and the upperend. of the" I lower section;

7 0 4. In combinationwith an internal combustion' engine a sectional push rod, the up-f per ofsa-id sections being formed with a socket i and the uppenendof the lower section movably confined. in said, socket, a shoulder V formed on said other section intermediate the I ends thereofandfinspaced relation to the v V edges of said socket, acoil; spring circum-H V posed about said other-sectionhavingits op- V posite ends in abutment with saidshoulden 4 and the edges'of the socket for urging said 7 7 sections apart, said upper-section havinga'i passage extending axially therethroughtrom I a the upper/end andincommunication Withsaid socket for conducting oilfinto thei'socket to 'forma film to providea cushion forthe abuttmgparts, the point ofadischargeaofy F;-

said, passage into said socket being in the cenf ter of'the-abutting parts, a separator memi l beimovably confined "inthe socket between theinnei Wall thereof and the upper end of I the-lower sectiomsaid upper endfofthe lower, section providediivitlia concavity and the s V inner Wall of said socket provided Witha con- V cavity in alignment With said first mentioned concavitytoprovideia seat for saidseparator member. 4 j V Intest-imonyvvhereof IafiiXmysignature. BERT-s11. HEIMENDINGER.

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