US1076827A - Carbureter. - Google Patents

Description

A. L. HAYNES. GARBURBTER. APPLICATION FILED FEB. s, 1912.

1,076,827, Patented 0nt.28,1913.

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lh. F ill To all whom may concern it known that l, .Eim'HUii I'll A3 a citizen. 0t United t'ltetes 1% 2 it illyoe, m the county of Gloom Kiln Kansas, have mventecl certain new ezoel riserevements in C cl oeie, eeezire we .roliowme to he s ALL clear, and exact description of o invention, such as will ens? e others skilled in the srt to which it :ippeizsius to moire fllltl use the same.

My invention relates to new ehcl u tul , improvements in carburetors for internal combustion engines and the ohiect of my invention is to improve the construction and increase the efiiciency oi the same,

A further object of my invention is to provide a cerhoretei" in which. the primary air which in most cases, is conducted from an air jacket arc-curl the exhaust encl i therefore lieeterl, is pass-real through an jacket surrounding the float chamln? e'nri therefore serves to heat the gasolene con tainecl therein amt thus cause more .reerly vsporzation of the same A further object of my invention to provide a cerhureter in which the Well of the mixing chimlher is extemlecl (lowli- Wardly into the carhuretiug chamber in such a manner that the tn'ihmr'y air in enteri the carhuretiup; chamber is directed (le s Wsiully against the spray nozzle valve -v the carburetor, thus setting up crltly cur rents Within the cerhureter, which not or serve to prevent too great suction tl'll )ll;;ll the nozzle valve but also cause a partial mixing 01. the air and gas before they enter the mixing; chamber proper.

A further object of my invention is the provision of {a carburetor in which provision is made "for supplying additional air to the corhurcter at :1 point between the cerhuret ing chamber and the mixing chamber, said additional air supply being regulated and controlled by the employment of ball valves so arranged that their movement may be readily regulated. And a still further ohiect 01" my invention is the provision of :1 hollow valve seat for the spray nozzle valve so arranged that the gasolene in passing through said valve must pass through the resultant chamber formed in the valve seat, admission to which is limited to a plurality of relatively small port's, whereby the valve L U "l l W J. eoou 21 were K e 11ml. then iticzilly pointed out in the cleim which at? ehecl to and :torniis a port; ct this app tiojm The or shows a central loiugituciiufil -2 lll'lillOVGCi carburetor.

the lirewii hotly or CElSlll is formed lower portion rlcsiguuteo numeral ill and. ihcl-osiug the v and spray nozzle and in iliifpfilf i i'crl'ning the mixing chemher eiul with means for supplying auxiliary air thereto.

The lower portion of the hefty or is suhstunlhrlly cl. :ricel in shape formed with on u. ill 1 out on well which is s1: and which forms the lie of lost (flit her 'llhese "walls are preferably to: i integrally "with each other the integrally formed. lugs 15 joining); the two and. maintaining them in proper spaced relation. llhe bottom of the outer wall is proviclotl with an air inlet port ill for admitting the primary air to the erl'mrctcr and the {ruse-- lene is supplied to the float chamber through needle valve (lcsigimtecl as a. whole by e numeral 17 and including a valve seat which is threaded into a tapped bore formed in the inner casing; at :1 point above the air inlet port of the outer casing. This valve seat is tuhulnr in form as shown, urirl is exteriorly thrcaclccl' intermediate its length to receive the primary uir adjusting cup 19 which cup, is provitlerl'with u bezuled edge 20 srluptem to he engaged by e spring (lctent 21 carried by the outer casing wherehv the cup is autometicully locked in ruljiistecl position. The bottom of the outer Wall 10 is also provided With a downwardly depending); annular exteuvirm screw threaded to receive the primary air supply pipe which in practice, is preferably connected to the air jacket oil the ch ins exhaust whereby healed uir is feel to the carhi'lreter, which air, passes through the air space surrounding the float chamber, thus heating" the is admitted'to the valve cage.

The upper portion of the inner wall or casing 13 is screw threaded to receive the threaded flange 22 of a cylindrical valve cage 23 which extends downwardly into the central portion of the float chamber 14.

Surrounding this valve cage is an annular float 24, preferably formed of copper and pivotally secured to this float at diametrically opposite points is an arcuate shaped yoke 25 the bight portion of which passes beneath the valve cage 23 and is provided with a tapped bore adapted to receive the threaded portion of a needle valve 26, said valve operating in the'valve seat 17 pr viously described and having its upper end slidably mounted through a needle valve guide 27 consisting of a disk shaped plate threaded into the lower 'end of the valve cage 23 and provided with a plurality of spaced ports 28 through which the gasolene As will be readily seen this float and valve construction automatically maintains a constant level of gasolene in the float chamber and this level may be readily altered by varying the position of the yoke upon the needle valve.

. Adjustably mounted for vertical movement within the valve cage 23 is the valve seat 29 of the'spray nozzle valve 30 said seat, as shown, being formed hollow to provide a chamber 30 having a plurality of relatively small inlet ports 31 in its lower wall and an outlet port or nozzle 32 in its upper wall communicating with the carbureting chamber 33. The nozzle valve 30 is threaded through a tapped bore formed in the lower wall of the valve-seat and is adjustable with respect to the nozzle 32 as shown. By mounting the valve seat 29 adjustably with in the valve cage the position of the nozzle with respect to the level of the gasolene may be adjusted either by adjusting said valve seat or by adjusting the float yolre upon the needle valve as preferred. By forming the valve seat with an interior chamber through which thegasolene passes upon its way to the nozzle and by formin' the inlet ports with this chamber relatively small as shown, all dashing of the'gasolene against the nozzle is avoided and a much steadier feed is maintained. 1

The upper portion 11 of the carbureter comprises a cylindrical mixing chamber 34 which is positioned centrally above the carbu'ret'ing chamber and surrounding this is an annular air chamber 35 which communicates with the mixing chamber by means of a plurality of ports 36,these chambers being formed by means of spaced walls 37 and 38 which are formed integrally with each other, the latter or outer wal being pronovasav vided its lower edge with a machined flange 39 adapted to engage with a corresponding flange 40 formed upon the upper portion ofthe wall 12 said flanges being secured together by bolts or other preferred means 41.

Extending upwardly from the lower wall of the annular chamber 35 is a partition wall 42 forming an outer annular chamber is communicating with the chamber 35 by means of ports The bottom wall of the chamber 43 is provided with a plurality of spaced apart ports 45, each of which ports is normally closed by a ball valve 46 and the top wall of said chamber is provided with a corresponding number of tapped bores positioned one directly above each of the ports 45 and adapted to receive adjusting caps d7 by which the action of the ball valves 46 is regulated. As shown the inner ends of these caps are concaved in such a manner that the bolts may be positioned to admit of upward movement of the ball valves 16 while at the same time preventing all movement of said valves toward each other or toward the port 44. As will be readily understood the aurailiary air is drawn in through the ports 45 raising the ball valve 46 and passes through the port 44 to the air chamber 35 from which it passes through the ports 36 to meet the air and gasolene vapor as they pass to the mixing chamber. lhe mixing chamber is provided with a throttle valve 4C8, preien ably of the butterfly type and mounts for angular adjustment as shown.

In operation the gasolene is fed to the float chamber through the needle valve 1? and is maintained at a constant level therein by means of the float 2d, heated air from the air jacket of the exhaust passes through the primary air inlet port 16 between the in ner and outer walls of the carbureter'heatthe gasolcne contained in the float charm her and thence to the carburetingchamber 33, being directed downwardly as it enters said chamber the downwardly extended portion Off the wall 37 of the mixing chamher, and, thus caused to sweep against the spraying nozzle. The air and gas'olene vapor from the carbureting chamber pass upwardly to the mixing chamber together with auxiliary air from the ports 36 as previously described.

From the foregoing description it will be apparent that l hails constructed a greatly improved form of carburetor in which the gasolene contained in the floatch nber is heated by the primary air tli latter passes to the carbureting chamber, and in which the ball valves for regulating the admission of auxiliary air are readily adjusted.

It will of course be understood that minor changes in details of construction may be made if desiredi, without in the sliqhb s't I 'bme un'izwgad centrally to farm an interior gree departing from the my "1 m the lower wall'af said chamber ventlon. prawideti with a plurality of inlet What I claim isz-- A a valve cn rriec i by said spraying in a carbureiter FW iii}? wmbmiling same-0 take and 21 mixture or (any Whemm f, I afifix my Signastant lev'el reservoir and tum in prawns-e (ff KZWQ witnesses.

support, a float controfieu I1 LFTT 2 Tr ing the gasolene leave in. 5521' praying nozzle meun' ued 011 adjustment toward and away lane level, said. spray

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