US1254723A - Carbureter. - Google Patents

Description

mmwmn F. S. OREM.

CARBURETER.

APPLICATION FILED NEIL-8,1916.

Patented Jan. 29, 1918.

J 7. new Una? 'c bral dmm All! enter the motor at llnrirnn ilflllllllf FREDERICK S. (JEEP/1', Ole" BALTEMORE, MARYLAND.

Cl'lRBUB/ETEH.

Application filed Februsry 8, 15318.

To all who), it may concern.

in it known that l. l iuinnzuou S'll{.'\'l"l7\] 1R (hum, n citizen of the United States, rcsidf ing' at Baltimore. Morvlnnd, have invented rcrlain new and useful Improvements in larlulretcrs. of which the following is specification.

The objects oi this invention are fil'Si72--t0 produce a carburetor that will entirely fulfil the rctpiircmcnls of an intcrmil combustion engine. will he simple in construction and. operation and will require no udjusti'nents al'lcr ils initial application to the engine. Second to provide a construction which will furnish the proper proportion of gosolcne and air at all speeds of the motor and this regardless 0'! temperature. 2?. (a. cold or warm weather, without any adjustments, whereby with such proper 1)l'(?}')()1tl0ll$ of gnsolene mid air, which constitutes an ideal explosive mixture, there will he complete combustion, which will mean more power, loss consump lion of gasolenc, and no deposit of carbon from this source.

In my improved carlmreter the gnsolene flows to the motor hygravity through ports of sullicicnt size and number and this gaso lone supply is independent of the suction of the motor and the velocity of the air passing through the cnrlniretcr.

Further, the air can he of sufficient independent of the gasolcnc supply to the motor, both the gasolcne and air supply being under direct control of: the operator, and when the gasolcne and air mixture produced by this carburetor is ignited, a blue flame will result. For quick accelerating, when the throttle lever is thrown in wide open position by the operutoiz, the maximum amount of gnsolenc and sir is pcrmitl ed to once. The complete conirol of gasolene and sir supply are under the amount control of the operator and do not depend upon the vecuui'n and velocity oi air to rcgu late the flow of gzisolcne :is employed in cur-- hureters now in use.

My invention includes the novel features of construction and.zirrengcnnuit and comhinetion of ports hercinn'ftc dcsc'rilwd 11nd particularly defined by the uppcmlcd claims, an embodiment of the inrei'ition being illus- Epceificeticn of Letters Patent.

(ll-owing, A, in Fig. l, is

"within cylindrical member movement between valves 2 l ntcntcd Jan. 29', thin. Serial no. woo-4.

rated in the accompanying drawings, in which- Figure l is a sectional view of a. carburetor. liig. 2 is a detail view of the throttle lever. Fig. 3 is 21, plan view of the piston and valve stem.

Fig". is stein.

Referring by reference characters to this the opening through which the mixture passes to the motor, the flange Ii. heing designed to be bolted to a similar flange on the intake manifold of motor (not shown). B designates the opening through whicl': warm air passes to the carburetor. C designates a half union attachment for connection to a pipe, (not shown) leading to any suitable gasolene supply tank, which should he at the proper distance 01' height shove carburetor to insure the proper flow of gnsolene to the carburetor at all times. which has suit-ably secured to its upper surface a flexible diaphragm 3. at designates a bolt which is fitted or screwed into the valve stem 5 and clamps the diaphragm tightly to the end of the valve stem 5. The valve stem 3 has integral with, or connected to it, through arms F, F, F", cylinder piston or sliding sleeve 6 which is fitted with rings (Z, (Z and also grooves (2.0, and which works 13. This member is preferably formed sepao plan of the guide for the valve rateiy of: and seated within the body of the carburetor. and at its upper edge is provided with a valve seat 13 for the valve-'2. On the lower end of valvejstem 5 is carried a valve '1'. beneath which is a valve or guiding stem 9'passing through guide ll. A helical spring 10 encircling this stem 9 between. guide 8 and lock nuts ll, tends to draw said Hllli'i/Q normally downward.

The "Function oi the diaphragm 3 is to pro vide n slight amount of play 01' relative and 7.

l9 dcsip nntcs a cap. in the center'of which is n {guide For a prolongation 9 of stem 9. The cylinder i3 is provided with a number of snmll opcniiifts orfnozzlcs 15 arranged at lli'll'crcnt elevations (preferably helicallvl, which allow gHSOlPT'H to flow from annular designates a valve of ring formchamber D to chamber H, when uncovered by piston valve 6.

16 is a fork shaped guide for a lever 17 which, by its engagement with the base of the fork tends to hold the needle valve 4 seated. The lower end. of guide 16 is threaded to be engaged by a nut 18, and a flexible diagram 1-9 is held tightly between guide member 16 and nut '18. This flexible diaphragm 19 is also held on its periphery by a clamping ring 20, which has a threaded exterior engaging internal threads on a portion of the wall of chamber (i and clamps the diaphragm against shoulder 9. Nut. 18 is provided with a cylindrical guide 18 at its lower end for the upper part of helical spring 21, the lower part of which rests in a similar guide carried by valve stem 22,

opening a in casing 14, which opening per mits lever 17 to move vertically. (hamhers r E and G are made tight by cap nuts andBl.

25 designates a bell crank lever which is attached to. shaft 26, which passes through casing 14 and is journaled in the walls thereof. Shaft 26 has an arm 27 which engages at its end with a slot in bolt 4. spring 25 is attached to crank 25 near its upper end and to a convenient part of frame of car. which pulls in opposite direction to arrow. A boltor set screw passing through a lug 29 on casing 1 and bearing against projection 25" of lever 25, serves as an adjustable'stop tor-limitingthe movement of lever 25.

a The operation of my-ahove described carbureter as follows The suction otanotor created by the pistons of the same causes valve '2 and tlexible diaphragm 3, together with valve stem and piston valve a and valve 7 and stem 9 to be drawn upward. unseating valves 2 and 7 from, their respective seats. There is a flange on valve 2, marked 2, the object of which. is to prevent it from opening until one or more or" ports 15 are open. The upward movement. above referred to, opens the lowermost ports 15, which ports or nor;- Zlcs allow gasolenc tollow' bygravity tron annular chamber ll to chamber it. At the same time lever '17 is raised also of? the bottom of forked 'guide 16, which allows the tiexiblc diaphragm 19 to move upward.

which removes the pressure on the helical, 'ihis permits the needle valve spring- 21. 22 to leave its seat :23, which allows gasol'ene to flow from tank, not shown, through The jaw of crank eeeenae chambers E and E to annular ehan'iber D and through ports 15, which are opened by the movement of piston valve (i upward. Here the gasolene meets and mixes with the air which is drawn upward around the edge of the valve 7 in a thin annular stream.

The amount of opening of valves 2 and 7 and travel of piston 6 is regulated by the. lock bolt 28 and the slot in bolt 4, the clearance between the bottom of slot in nut l and bottom of arm'27 being regulated by bolt 28. Turning bolt to: right increases the lift and to left decreases the lift oi valves 2 and T and travel of piston valve 6.

*hen the pressure of lever 17, which is held in closed position by spring 10, is removed by the suction of motor raising valves 2 and 7 and piston valve (3, the suction of motor, through the space provided in casing H- t'or lever 17 to rise. is exerted on the upper surface oi flexible diaphragm 19, which rauses the, flexible. diaphragm to rise, rei'novinguthe tension or pressure on spring 21 and allowing valve 22 to hecomc unseated, which permits gasolene to flow by gravity from tank to chamber I The amount of opening ol the valves 2 and 7 due to llange 2" on valve 2 and travel of piston (3 under the suction is sullicient to start motor, the amount ol play or lost motion ot arm 27 in th slot of memberl being sullicient for this purpose. lly that i mean when adjusted by bolt in: the valves 2 and 7 and piston valve (3 are operated au tomatically through the suction of the mo tor and at the same time the needle valve is allowed to open automatically by taking the pressure oi? the flexible diaphragm 19 and the suction ot motor draws the diaphragm away from spring 21 and gas-r lene lills chamber E, as already stated To speed the motor, it is only neccssgr) to open valves 2 and 7 and lift piston -valve (3 through crank 25in the direction of arrow, Fig. 2 23 is provided with the usual foot and hand throttle apparatus. as already installed in cars.

The speed of the motor is controlled ext Ill!) tirely'by the operator through the o 'iening or closing lTlOVlIl'ltllt, of valves 2 and 7, which admits a greater or 'less amount ot' air through opt-Hing li. and the raising and lowering oi piston valve 3, which opens more or less of the nozzles or portsd-i sutlicieiit in number and size to give the. correct mixture and this regardless ot' speed of motor.

.\t'ter the maximum amount of gasolcne is allowed to pass through the nozzles or ports to by raising piston (3 through crank 25, the

0 e 1 i yalws 4 and t are openedfurther, which.

however. only admits warmed ai" (no more i nozzlesliving openedl and heroin lies the economical Htlt ol' the carliureter, as it can be eadily seen that when the requisite amountof gnsnlonofml'lwmol'mis' supplied through llw nozzlvs. our mm. by ifurlil'iir opening ralvw; and. 7. add warm air after this. which will zuukr tho oxpiosiw miiqluri more powerful and at the sauna lime wlmr more oxygvn is added. il' will lHll'H any doposit of rurlmn resulting: from lubriii'ariug oil. it can further bi} swi-u llltll tlw opm-irtiou of (his curburutvr dovs not dopund on a vm'uiun to d aw the gnsolvmout of jul or jvtsi as in cuii'un'olers new in uw.

it will not mulm 21%;, dill 'r-sit'r how -old gusolmm migrln'ibr, it will flow by gravity in (*humlmr ii when iioz'zlvs or porls; 13 are: uurorvrvd liy piston mlw 6.

For slur-ting in wry cold wmillwr. whilv it; would probably not ll? uvi-vusurv. our Could, howcrr-I'. 0pm the "flifOR and 7 nu l ruisv piston ndvv l3 tl'irougrli lvror 2.; or :1 nmmvut. which would allmv giwolv'nv to (low from uozzlv: or port; if to (:lmmlwr ll, whirl) would cause a Yer rirli mixture.

It is; obvious {link if. ullvr cliv molor i started. llw opvrzilior '(ll lo upvu rulws :3 and 7 and lift piston vulva f; i i it" lu'l. vxfi'uul. tliv Illllfilllliliil :HlHHHIi of :Mil'ill and air would be permitted lo 0115M lllUiOE through i-lizu-nbvrs: ll and whirl: would 'vuuw motor ('0 Rii'illll its maximum lmr of rvrolul ions ai oncv.

Should tho rulnx 9 and T :uidpisl-rm mira- (3 lm in opvn position illlilli'll'lliiflji" li-lt through ounw'tious uudvr roulrol oi" ps-rai'or. (-itlwr by hand or foot nmuipulnz. tlm vuruuu: rousing when moi or slop wmuf allow llvxililv diaphragm 15.) ii} rosumi *position llml wrould (-losv nor-die realm lhvrvlrv prvrvnliiig rim grusolvnv from p in to r-lnuulwr-lzl' from iill saugt'ply' hou llio vulva is olouvd no gg usolwu win escape from} olmiul'ior EC wlwu ll) uuggiuo i at refit, duv lo Hi0 HiiiuilflP H o? (no jr'fii .orificw; uud flwir upward iuriineilioui coupled with llio lflwl' limi ilwre is no w: y for air lo H0! into (-humller 1 1. m ups: through orifives 1:1 H10 upprr part of chamber E living}; closvd by diuplimgm if).

ii; is intruded lhal lliv tmmion of spring i0 should 1w surli as in swat valro 2 first and through film liexihi0 diaphragu 'm 3 and valve ulvm 5 seal: mm '2'.

Piston 6 is proridrd will) l'itk j fitting ring-s: inlvndur'l lo prvvrm the pass; go of grasolum from annular clmml'wr to (l'HEIl'El'HT' ll Willi dais: czubnreler it is impnssibio for pliirul:

1 illilli rior of curlmrovr.

'ilmd my in m lion, '11 at wiring a rlnmibcr will; a

w porls lending 'l rougl'h llwri'ai'ih piuiou Valve working in mud irlizzuilw- :au-zl uorm'mg' and uncovering? Mud pois urzolvne by i "umuu: fox: supplyiiw u i p '15 for ('OUHPClJiUfi at ils upper a My am i'zilniqg uml liming a iisi am annular pisl? rltuuulwri moans (u'ilr Through ill Hi3 l3 lllii :air .alipiliff ranpnecled to door or mid slumber mil :1 valve 010s" l i e :md (,l'H'IIliClKWEi0 ml 'pir-zljou valve. z 'H'u'ii :1 uurhurvl E11 9: g -iruli porls in the llwriml ail dill vrmil u-lrsrzil'iomio a ho]- milou mlrv working: in midcimmlieix for fvvdimg gmfio'lene llirougli said ririi' x win-i1 lilo porls are uncov- I pply pzmrizige lo lllf' bottom of H :uulm; 1 irlln coulroiling Hi0 pas- 'r to the o iiulmex a i'iil'i'u iliflOVQ i'he Hing iw gmsszigo of time urn :rou: mid vlmmlmr and means coni'wirlisiggmid iliruv valves-i for musing" 13" n em in v pan.

l-i um comprising a cylindricalizwing; grasiolene' ports iLlT :ii'liowni: view:-

on wire in said ports, :1 valve for vurluirr'luig Chamber illZOiWi! in Wall n Wmx u, mire for LHEHWQ from 191 .119: con- 1' mow/i nwlwl. lo op rain in 'm'iimm arm hurl;- a, lost? molim'x mid will "ii crziii-liurol meet-um with :1 ca ri'un'eiing' leading ilu'ough (i by line pislon :1 1; operating I chamber with a plurality of gasolene ports leading through the wall thereof, means for supplyinggasolene by gravity through said ports, a piston valve'in said chamber controlling said ports, a valve controllin, the admisison of air to the bottom of sai carhureting chamber, a second valve controlling the passage of the mixture "from said chamber, said three valves being connected to move in unison, a cut-.051 tor the gasolene feed when the engine is rest, and means permitting opening of said cut-oi when said three valves are operated.

6. A carburetor comprising a carbureting chamber having a flurality of gasolene ports, means for fee in the same by gravity, upper and lower valves controlling the entrance of air to and its exit from said carhureting chamber, a central stem"'connecting said valves and. also connected to said piston valve, a gasolene cut-oil valve, means connecting said stem with said cut-ofi whereby the "latter is allowed to open on the upward movement of the stem, and an operating lever connected with said stem.

7. A carburetor having an annular chamber adapted for connection at its upper end with the engine intake and having a plural y of gasolene ports leading through the wall, a cylindrical piston valve working in said chamber and controlling said ports, a

chamber for supplying gasolenc to said orts, an air sup ly passage connected to the bottom of said c amber and a valve closing said airsupply passage and connected to move in .unison with said piston valve, means for feeding gasolene to said chamber, a valve controlling said feed, and means for closing said valve when said first named alves are closed."

8. A carburetor having a carbureting gasolene through diaphragm ab we said chamber, a sprmg bet son said diaphragm and valve, a chumbor above said diaphragm connnunicating, with the space above the carburcting chamber, andjmeans whereby the closing of said connected valves places pressure on the diaphragm.

9. A. carburetor having a carburctingchamber with a plurality of gasoleneports, a hollow piston valve in said chamber controlling said ports, a valve controlling the admission of air to the bottom of said ear bursting chamber, a second valve controlling the passage of the mixture from said chamher, said three valves being connected to move in unison, a spring tending normally to close said valves, a gasolcne chamber connected with said ports and also with said source of supply, a valve controlling said supply, a diaphragm above said chamber, a spring; between said diaphragm and valve, a chamber above said diaphragm communicat- .ing with the space above the carburcting chamber, and means whereby the closing of said connected valves places nrossurc on the diaphragm; V

In testimony whereof I ailix my signature in the presence of two witnesses.

FREDERICK S. OEEM. W'itnesscs lrlownno l). AoAMs, HARRY E. Srnvnnwooo.

Images