US1052897A - Carbureter. - Google Patents

Carbureter. Download PDF

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Publication number
US1052897A
US1052897A US55450210A US1910554502A US1052897A US 1052897 A US1052897 A US 1052897A US 55450210 A US55450210 A US 55450210A US 1910554502 A US1910554502 A US 1910554502A US 1052897 A US1052897 A US 1052897A
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passage
engine
ball
air
shaped
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US55450210A
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James M Dayton
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EXCELSIOR NEEDLE Co
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EXCELSIOR NEEDLE Co
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M9/00—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position
    • F02M9/10—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having valves, or like controls, of elastic-wall type for controlling the passage, or for varying cross-sectional area, of fuel-air mixing chambers or of the entry passage
    • F02M9/106—Pneumatic or hydraulic control

Definitions

  • a n objeo;J of lie invenion is io pi'ovide means foi? auiomaieaily afljnsing the choke in a eaibiueter of the above elia'faeei.
  • EL further objectA of the invention is to pfovifle means for oontroliingihe quan'it-gf' of an' liat passes by the spray nozzle, due to the suction o1 Hz ngine at low speed.
  • Fig. 2 is a. section on the line il.; 2, of Fig. l. Fie. 2 is a sec-tion on the line 3, 8, of Fig. l., showing the ball in adjusted position, and the increased area of the choke.
  • My improved eaibui'eeei' includes the usual ioat chamber l, in which is located a float 2, which coni'ols the supply of gasolene to the ⁇ float chamber.
  • a spray nozzle 3 projects from the float chamber into the Jflnoat l of the earburetez'.
  • Said spay nozzie may be controlled by the usual adjustable needle valve which provides a normally fixed but adjustable c'ieliveiing oiee.
  • the oai-bumper is formed with a U-shaped an' passage and yElie spray nozzle 3 is located at the lowein portion of said Ushapenl passage.
  • One end of the U- shaped passage leads from a main air inlet 5,.
  • the casing of elle car'bureter is provided with a. gauze screen T which is located between illie final mixing ehan'ibei.' and 'eine .spiny nozzle ille the the and serves a means of' bifeaking up gasolenel convinced and tlioioug'hly mixing same with the all' drawn in tlnough main an' inlet 5.
  • v ,An iuxlliaiyr an :niet 8 supplies further aii" to the final i'nixingg chamber so that the mixture coming iluough 'lie seieen ,may
  • the auniliay air inlet is ooniiolled by a 'valve 9 mounted on a siem 1G that rests against a plunger l1, extending' into casing l2 anni oontollel by a spi-ing which nozrnially b olfls the auxiliary valve 3 closed.
  • '.l -e 'iension spring is ailjusefi by a sui able tlnnnb nut i3, This a'uziiiiaiy aix inlet valve and its eonrollii mechanism forni no part of the present inventiona but is shown, nes ibed and ⁇ claimed in my eopending application, Sinaai No. 525,941,
  • ilecl ANovenibei? 2nd, 190W y A 'iln'oengine 'valve lll is pivoecl at 15 1o the 'upper enel of the Caibueei, serves as a means for ooni-follind'al e supply of mixture to 'the engine.
  • Sani ,lnotile valve may beA operaed in the well ifnown manner.
  • valve l@ which :is lieiein shown is in the form of a bell. Said ball normally rests upon a cross pin o? olrei support 17.
  • The'passage through the bui'eter between the spray nozlae7 and 'the gauze screen 7 is cone sliape wih he base of the Cone substantially ,fie
  • the snoeien not sui'li Aeo tively smallrarea .is left around the upper side of the ball fqr the passage ofthe mixture from the main air intake over the nozzle to the final mixing chamber'.
  • the ball 16 When the engine is running 'at slow speed, the ball 16 rests on its scat as the suction will not be suflicient to lift the ball. The suction, however, will be suiiicient to open the auxiliary valve t) and take in a small amount of air through the auxiliary air inlet, which will be mixed with the air received from the main air inlet, and fuel in the final mixing chamber, thus modifying the mixture which would be otherwise too rich at slow engine speeds. As the speed of the engine increases as above noted, the ball will be raised, increasing the area of the choke'and supplying a greater amount of air from the main air intake and ⁇ also a greater quantity of fuel for the increased demand of the engine.
  • the ball acts as a valve which automatically varies the size of the choke. lVhen the engine speed is increasing, the ball is lifted toward thelarger end of the funnel-shaped or cone-shaped passage thus gradually enlarging the opening through which the gas may4 pass.
  • the ball gradually returns.
  • the automatic control of the iow of the gasolene at the spray nozzle is secured by the action of the ball.
  • the Wire gauze screen fitted across the air passage below the final mixing chamber not only breaks up the gasolene spray, but will also limit the lmovement'of the ball.
  • the valve for the auxiliaryair inlet is so controlled as to furnish the correct amount of air to mix with the air and gasolene supply through the main passage of the carbureter.
  • a spray nozzle an auxiliary air inlet located in advance of said spray nozzle, a valve for controlling said air inlet, a constant air inlet through which the air is drawn by the suction of the engine over the spray nozzle, the passage. through the carbureter adjacent the nozzle and in' advance thereof, being cone-shaped and gradually increasing in diameter, and a valve controlled by gravity and the suction of the engine located in said cone-shaped passage, and in advance of said spray nozzle.
  • a carbureter including in combination, a spray nozzle, an auxiliary air inlet 'located in advance of said spray nozzle, a-
  • valve for controlling said air inlet, a con- -stant air inlet through which air is drawn by the suction of the engine over the spray nozzle, the passage through the carbureter adjacentthe nozzleand in advance thereof,
  • a carbureter including in combination, a spray nozzle, an auxiliary air inlet located in advance of said spray nozzle, a valve for controlling said air inlet, a constant main air inlet through which air is drawn by the suction of the engine over the spray nozzle, the passage through the 'carbureter adjacent .the nozzle and in advance thereof, being cone-shaped and gradually increasmg in diy ameter, a ball located in said cone-shaped passage slightly smaller in diameter than said passage, and agauze screen carried by the casing and extending 'across the air passage between the ball and ithe auxiliary air inlet.
  • a carbureter including in combination, a casing having a U-shaped air passage, a spray nozzle located at the lower side of said U-shaped passage, a constant air intake at one end of' said U-shaped passage, the other end of said U-shaped passage bemg tapered "outwardly, a ball located 4in said tapered portion of said passage',l and being of a slightly smaller diameter than the smallest diameter of said passage, means against which said ball rests when the engine is running at slow speed.
  • a carbureter including in combination,
  • a casing having a lai-shaped air passage, a spray nozzle ioeated at the lower side of said ll-shaped passage, a constant air intake at one end of said U-shaped passage, the other end or said U-shaped passage being tapered outwardly, a ball loeateolin said tapered portion of said passage, and being of a slightly smaller diameter than the smallest diameter of said passage, means against which said ball 'rests when the engineis running at sioW speed, a gauze screen cari'ed loyv the easing and extending across the air passage at the outer end of said tapered portien.
  • a carbureter including in combination, a easing having a U-shaped air passage, a spray nezzle located at the lower side of said Sil-.shaped passage, a constant air intake at one end of said U-sliaped passage, the other end ⁇ of said [Ll-shaped passage being tapered outwardly, a bali iov/ated insaid tapered portion of said passage and being 'of a slightly smaller diameter than the smallest diameter of said passage, means against which said bali rests when the engine is running atsloW speed, a final mixing chamber at the ⁇ end oi said tapered pertion si?

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

J. M. DYTGN CARBURETBR. .APPLICATION FILED Amm, 1910.
Patented Feb.
Elim/vanto@ ?FTW..
JAMES IM. DAYTGN, Gl TOlRING-TDN, CONNECTICUT, ASSGNOR TG EXCELSIB. NEEDLE CQEPANY, TORRNGTQN, CGNNECTICUT, e.
CORPRATEON 0F CONNECTICUT.
- CARR Specification of Letters Patent.
innemeniee'b. 1i, iais.
it' known iiiiai James M, Dumon', a eiiizen of ine Uniefl Skates. i'es'ling ai; Tori'ing'ion. in the :izouniy of Lieliiield, Siate' of' Fini eeieut, have invented certain new ,i anv ossei-.il I'npioveniens in fai'burefzers,` of which die following is a description, refeienee ben had .io the aooon'xpanying drawing and 'lo the leiteis and igui'es of refei- Reli liereon. i inven'ion l'elaies co .new and useful inipoifements in earburete fs, and more espeoallf.1 'o earbu'fetei's which pi'ovided wiili a nain aii' inlet through which folie aix` is fiiee e-fl oval' ille spray nozzle, and an .iaiy inlet for snppiying further air to he mixture.
A n objeo;J of lie invenion is io pi'ovide means foi? auiomaieaily afljnsing the choke in a eaibiueter of the above elia'faeei.
EL further objectA of the invention is to pfovifle means for oontroliingihe quan'it-gf' of an' liat passes by the spray nozzle, due to the suction o1 hilf ngine at low speed.
These and otliei objees Wili in part be obvious, and Will in :sar be "neenafer more uily clesorioeri.
En the diawings which show by Way of illusiaion, one enibofiinent of the invention; diguie is seoional View thiougli af earbureter having improvements aigplied tbeieto. Fig. 2 is a. section on the line il.; 2, of Fig. l. Fie. 2 is a sec-tion on the line 3, 8, of Fig. l., showing the ball in adjusted position, and the increased area of the choke.
My improved eaibui'eeei' includes the usual ioat chamber l, in which is located a float 2, which coni'ols the supply of gasolene to the` float chamber. A spray nozzle 3, projects from the float chamber into the Jflnoat l of the earburetez'. Said spay nozzie may be controlled by the usual adjustable needle valve which provides a normally fixed but adjustable c'ieliveiing oiee. As herein shown, the oai-bumper is formed with a U-shaped an' passage and yElie spray nozzle 3 is located at the lowein portion of said Ushapenl passage. One end of the U- shaped passage leads from a main air inlet 5,. rlhe other end oit' the U-shaped passageA leads to a nal mixing Chamber 6. The casing of elle car'bureter is provided with a. gauze screen T which is located between illie final mixing ehan'ibei.' and 'eine .spiny nozzle ille the the and serves a means of' bifeaking up gasolenel pray and tlioioug'hly mixing same with the all' drawn in tlnough main an' inlet 5. v ,An iuxlliaiyr an :niet 8 supplies further aii" to the final i'nixingg chamber so that the mixture coming iluough 'lie seieen ,may
be pi'opeily,modified. according @o ille 'equii-ernents of die engine. The auniliay air inlet is ooniiolled by a 'valve 9 mounted on a siem 1G that rests against a plunger l1, extending' into casing l2 anni oontollel by a spi-ing which nozrnially b olfls the auxiliary valve 3 closed.
'.l -e 'iension spring is ailjusefi by a sui able tlnnnb nut i3, This a'uziiiiaiy aix inlet valve and its eonrollii mechanism forni no part of the present inventiona but is shown, nes ibed and` claimed in my eopending application, Sinaai No. 525,941,
ilecl ANovenibei? 2nd, 190W y A 'iln'oiile 'valve lll is pivoecl at 15 1o the 'upper enel of the Caibueei, serves as a means for ooni-follind'al e supply of mixture to 'the engine. Sani ,lnotile valve may beA operaed in the well ifnown manner. lb has been found in prac ce that when the cliameez of the choke 'lle eabni'etei" is Iliade sufficiently le a to supply lie engine ai: high speeds, thai- Wnen the' engine is op-ei'atecl at low speeds, ilie :"vtion is noli sufficient to operate the au ry valve and as' all tl1e an is supplim lirougii the main ail' intake which passes one? the spiay nozzle, too inuel'i fuel Wiil be Lira-Wn iom I the nozzle. This is due finiariiy to one fac-.t thai the area o ihe ein. :e 4l is feo great for low engine speeds when the choke is made of sufficient ai'ea to aeeonirnolaie lA igli engine speeds.
In order that the ciokeof lie eai'bui'eter may be varied for vai'ying engine speedsj l1 have provided a valve l@ which :is lieiein shown is in the form of a bell. Said ball normally rests upon a cross pin o? olrei support 17. The'passage through the bui'eter between the spray nozlae7 and 'the gauze screen 7 is cone sliape wih he base of the Cone substantially ,fie
ne sor-een.
low engine speeds, the snoeien not sui'li Aeo tively smallrarea .is left around the upper side of the ball fqr the passage ofthe mixture from the main air intake over the nozzle to the final mixing chamber'.
-space between the ball and the casing of the carbureter, as shown in Fig. 3, is greatly increased. lt will be obvious, that the varying speeds of the engine will cause varying degrees of suction and lift the ball varying distances from the cross pin'l, and consequently produce varying arcas in the passage way for the minture of air and fuel or a varying choke for different engine speeds.
When the engine is running 'at slow speed, the ball 16 rests on its scat as the suction will not be suflicient to lift the ball. The suction, however, will be suiiicient to open the auxiliary valve t) and take in a small amount of air through the auxiliary air inlet, which will be mixed with the air received from the main air inlet, and fuel in the final mixing chamber, thus modifying the mixture which would be otherwise too rich at slow engine speeds. As the speed of the engine increases as above noted, the ball will be raised, increasing the area of the choke'and supplying a greater amount of air from the main air intake and `also a greater quantity of fuel for the increased demand of the engine. It will be seen therefore, that the ball acts as a valve which automatically varies the size of the choke. lVhen the engine speed is increasing, the ball is lifted toward thelarger end of the funnel-shaped or cone-shaped passage thus gradually enlarging the opening through which the gas may4 pass.
When the engine .slows down, the ball gradually returns. As the quantity of gasolene deliveredto the final mixing clamber varies with the quantity of air passing the spray nozzle, the automatic control of the iow of the gasolene at the spray nozzle, is secured by the action of the ball. The Wire gauze screen fitted across the air passage below the final mixing chamber not only breaks up the gasolene spray, but will also limit the lmovement'of the ball. The valve for the auxiliaryair inlet is so controlled as to furnish the correct amount of air to mix with the air and gasolene supply through the main passage of the carbureter.
It will be obvious that minor changes in the details of construction and the arrangerment of parts may be made without departing from the spirit of my invention.
Having thus particularly described my invention, what I claim as new and desire to secure by Letters Patent is 1. A carbureter including in combination,
a spray nozzle, an auxiliary air inlet located in advance of said spray nozzle, a valve for controlling said air inlet, a constant air inlet through which the air is drawn by the suction of the engine over the spray nozzle, the passage. through the carbureter adjacent the nozzle and in' advance thereof, being cone-shaped and gradually increasing in diameter, and a valve controlled by gravity and the suction of the engine located in said cone-shaped passage, and in advance of said spray nozzle.`
2. A carbureter including in combination, a spray nozzle, an auxiliary air inlet 'located in advance of said spray nozzle, a-
valve for controlling said air inlet, a con- -stant air inlet through which air is drawn by the suction of the engine over the spray nozzle, the passage through the carbureter adjacentthe nozzleand in advance thereof,
the passage through the carbureter adjacent the nozzle, and in advance thereof being cone-shaped and gradually increasing in diameter, a ball located in Said cone-shaped passage, slightly smaller' in diameter than `said passage, a cross pin supported by the casing, and serving as a rest for said ball.
` 4. A carbureter including in combination, a spray nozzle, an auxiliary air inlet located in advance of said spray nozzle, a valve for controlling said air inlet, a constant main air inlet through which air is drawn by the suction of the engine over the spray nozzle, the passage through the 'carbureter adjacent .the nozzle and in advance thereof, being cone-shaped and gradually increasmg in diy ameter, a ball located in said cone-shaped passage slightly smaller in diameter than said passage, and agauze screen carried by the casing and extending 'across the air passage between the ball and ithe auxiliary air inlet.A
5. A carbureter including in combination, a casing having a U-shaped air passage, a spray nozzle located at the lower side of said U-shaped passage, a constant air intake at one end of' said U-shaped passage, the other end of said U-shaped passage bemg tapered "outwardly, a ball located 4in said tapered portion of said passage',l and being of a slightly smaller diameter than the smallest diameter of said passage, means against which said ball rests when the engine is running at slow speed.
6. A carbureter including in combination,
assess? a casing having a lai-shaped air passage, a spray nozzle ioeated at the lower side of said ll-shaped passage, a constant air intake at one end of said U-shaped passage, the other end or said U-shaped passage being tapered outwardly, a ball loeateolin said tapered portion of said passage, and being of a slightly smaller diameter than the smallest diameter of said passage, means against which said ball 'rests when the engineis running at sioW speed, a gauze screen cari'ed loyv the easing and extending across the air passage at the outer end of said tapered portien. A
l. A carbureter including in combination, a easing having a U-shaped air passage, a spray nezzle located at the lower side of said Sil-.shaped passage, a constant air intake at one end of said U-sliaped passage, the other end `of said [Ll-shaped passage being tapered outwardly, a bali iov/ated insaid tapered portion of said passage and being 'of a slightly smaller diameter than the smallest diameter of said passage, means against which said bali rests when the engine is running atsloW speed, a final mixing chamber at the `end oi said tapered pertion si? the U-sliaped passage, an auxiliary air iniet leading to said final mixing chamber, and a valve controlled by trie suction oi site engine for closing said auxiliary air in testimony whereof i my signa ture, in presenoe of two Witnesses.
JAMES M. 'BAYTU Witnesses D. Himbeere, M. A. @i1/imm.
US55450210A 1910-04-09 1910-04-09 Carbureter. Expired - Lifetime US1052897A (en)

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