US1818068A - Floatless carburetor - Google Patents

Floatless carburetor Download PDF

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US1818068A
US1818068A US324995A US32499528A US1818068A US 1818068 A US1818068 A US 1818068A US 324995 A US324995 A US 324995A US 32499528 A US32499528 A US 32499528A US 1818068 A US1818068 A US 1818068A
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Prior art keywords
needle
boring
benzine
screw
plate
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US324995A
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Kreher Max
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CURT LUDWIG
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CURT LUDWIG
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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
    • F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
    • F02M17/14—Carburettors with fuel-supply parts opened and closed in synchronism with engine stroke ; Valve carburettors
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
    • F02M25/0225—Water atomisers or mixers, e.g. using ultrasonic waves
    • 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
    • F02M9/12—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 other specific means for controlling the passage, or for varying cross-sectional area, of fuel-air mixing chambers
    • F02M9/127—Axially movable throttle valves concentric with the axis of the mixture passage
    • F02M9/133—Axially movable throttle valves concentric with the axis of the mixture passage the throttle valves having mushroom-shaped bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/39—Liquid feeding nozzles

Definitions

  • a carburetor without float must have, if it has to fulfill the practical requirements, a special construction with accurate calculation of all points important and favourable for the working. It is believed that this invention represents a type of floatless carburetor which is an important improvement over all known types of carburetors and of great importance for use on motorcars, aircraft and the like.
  • Fig. 2 shows in top plan view a threearmed blade spring to be used in combination with the regulating pin.
  • Fig. 4 shows the regulating pin in elevation.
  • Fig. 5 shows in side elevation the regulating pin with mixing plate.
  • Fig. 5a is a top plan view of Fig. 5.
  • Fig. 6 is a cross section on line VI-VI of Fig. 1.
  • Fig. 7 shows in side elevation the benzine distributing'element shaped like the rose of a water can.
  • Fig. 7 a is a plan view of Fig. 7 seen from below. l
  • Fig. 8 shows in cross section partly in elevation a carburetor of modied construction.
  • Fig. 9a is a vertical section through Fig. ⁇
  • Fig. 10 is a horizontal section through the fuel channel in Fig. 8.
  • Fig. 11 shows the benzine nozzle in vertical section.
  • Fig. 12 is a side elevation showing the regulating pin.
  • Figs. 13, 14 and 15 show each in vertical section a carburetor of modified construction.
  • the carburetor casing is composed of two parts 1 and 2 screw connected with each other.
  • the upper part 1 comprises a transverse bar 3 having three arms and a vhub 4, (Figs. 1 and 6) said upper part of the casing having a flange 5 at the top end.
  • a shaft 6 with throttle valve 7 is journaled in part 1 of the casing .
  • the part 2 o'f the casing comprises a transverse bar 8 in which a channel 9 is bored.
  • the casing has two tubular sockets, the tubular socket 10 serving for the admission of water vand tapping into an annulargroove 11, and the tubular socket 12 forming an extension of the transverse bar 8 and serving for the admission of benzine.
  • a nozzle insert 18 is in the outer end of the tubular socket 12.
  • the flange 5 of the casing is connected to the engine and the air iows in through the open lower end in the direction of the arrow lines.
  • the transverse bar 8 a bearing brass 14 is formed in which an element 15 is inserted which I call a rose of a watering can.
  • an element 15 is inserted which I call a rose of a watering can.
  • a cavity 16 is arranged from which extend in radial directions narrow grooves 15a over the lower surface to the upper edge of said element (see Fig. 7
  • the element 15 is fixed in the bearing brass 19 by means of a screw 17.
  • This screw is bored and the boring communicates with the benzine'channel 9.
  • a valve seat 18 is arranged.
  • Frein the boring of screw 17 extend laterally directedV channels 19 to the cavity 16.
  • the needle 17 has, as shown in Figs. 1, 4 and 5, a shutting off plate 2l for the passage of the mixture. Its point bears against the seat 18 and it is guided with a collar 22 in the boring of screw 17 and with its upper end 23 in the hub 4 of the three armed transverse barp. Between a collar 24 of the regulating needle and the transverse bar 3 a spiral spring 25 is inserted.
  • the screw 17 and the needle 2O are made of rust lroof steel and one of the two elements (immaterial which one) must be tempered and the other not tempered.
  • the shuttingoif plate 21 1 and 5) which is made of light metal and has apertures 2G in the bottom plate loosely mounted von the regulating needle and coupled with. this needle by means of a three-armed blade spring 2 inserted in said plate 21. The needle and the plate are adjusted together and in dependence of each other.
  • the plate 2l is normally standing a short distance abovevan ⁇ ollset step 2S of the element 15.
  • a ring 29 is removably inserted.,l the inner diameter of which determines the width of the passage.
  • the widthof the passage can be adjusted in accordance with the actual strength of suction of the motor.
  • an .annular groove 30 iscut which registers with the annular groove 11 and contains a wick 31 which is continually moistened -by the water Vflowing in through thetubular socket 10 and annular groove 11. From the 'bottom of groove 30 nozzle holes 32 extend ⁇ to ⁇ the inner surface of ring 29.
  • the vacuum existing -in the suction draft attracts the moisture from wick 31 through the hole-s 332 so that -moisture isvcontinualiy absorbed by the suction draft.
  • the moisture is very little7 only a moist vapour, but it has ⁇ the effect to solidify the mixture.
  • the throttle valve 7 is only slightly open, to be opened wider according to requirement as soon as the engine is running. ⁇ vlBy the suction draft produced by the engine the needle 20 and plate 21 are automatically raised and air is sucked through the channel 9.
  • the benzine flows into the boring of screw 7, thence through the nozzle holes 19 into the cavity 1G to be distributed through the grooves 15o. Atthe upper edge of the element 15 the benzine, flowing out uniformly distributed, is Adrawn along by the suction air.
  • This arrangement of element 15 ensures.anextraordinarily fine distribution of the benzine and a very intimate mixingof benzineandair so that a perfectly working combustible mixture is produced.
  • the collar of the needle 2O is inserted into this cavity 37 and the blade spring 33 connects the two elements.
  • a spiral spring 38 rests on the ring This ring is normally in such position that its shoulder a short distance above the offset portion 28. shock striking against the needle is neutralized as the ring 3l is pressed down against the offset step 2Sg the blade spring braking elastically the shock for the needle 20.
  • the valve is also automatically opened by the suction draft as in the form of construction above described.
  • the casing is cast in one piece.
  • the channel 9 extends through the transverse bar 8 from oneend to the other.
  • a nozzle 559 is screwed, the boring of which con'in'iunicates by lateral channels d0 with an annular groove al. r'lhe benzine flows through the nozzle and through the annular groove to the central boring of screw 17.
  • the valve is formed by av plug Ll? ⁇ mounted on a spiral spring 13.
  • the valve chamber is closed at the lower end by a screw fill.
  • the pin of plug 4:2 projects from the casing.
  • rlhe shaft 6 of the throttle valve is rotated by a two-armed lever Ll5 and the pin of the plug is on the path of one-of the lever arms.
  • the valve shuts oil vin the upper position. In this form of construction the valve is not opened by the suction draft but by depressing of plug l2 by means of one of the arms of lever 4:5.
  • abolt t7 controlled by a spiral spring 116 is situated inthe channel 9, said bolt having a central boring communicating by a laterally directed branch 18 with the cavity 1G of the element 15.
  • a bolt controlled by a spring 49 forms a shutting off valve.
  • the bolt L17 has further a groove 51 in its outer surface and it is connected to a pull element to be operated from the drivers seat. 'l he spring L16 pushes the boltf7 normally forward to shut off groove 51.
  • the bolt 50 is at the starting of the ⁇ engine first operated automatically by the suction draft formed in the cylinder and is moved back by the pressure of the benzine in the central boring of the bolt 17 against the action of the spring 19 thereby exposing the branch 118 and Vallowing the benzine to pass from the boring of the bolt 47 to the branch 48.
  • the bolt 47 is not displaced by the suction but remains in the closing position.
  • the bolt 47 is pulled to the left (Fig. 14) from the drivers seat so that groove 5l is made to communicate on the right end with the benzine feed bore in the part l2 and on the left with the cavity 16.
  • Fig. l5 shows the channel 9 cut in the casing and joining a vertical channel 9a in which a seat 18a is arranged for a valve body 52. The valve is lifted again by the suction draft.
  • a floatless carburetor comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass in said transverse bar, a rose-like head on said bearing brass for finely distributing the benzine, a screw for clamping said head on said bearing brass and having a central boring' forming a passage for the benzine, a seat in the boring of said screw, a regulating needle in said boring bearing on said seat, a shutting olf plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other.
  • a floatless carburetor comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass on said transverse bar, a rose-like head on said bearing brass for nely distributing the benzine, a screw for clamping said head on said bearing brass and having a central boring forming a passage for the benzine, a seat in the boring of said screw, a regulating needle in said boring bearing on said seat, a shutting off plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other the fuel and air mixture flowing around.
  • a floatless carburetor comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass in said transverse bar, a rose-like head on said bearing brass for nely distributing the benzine having an offset step on its outer surface, a screw for clamping said head on said bearing brass and having a central boring forming a passage for the benzine, a seat in the boring of said screw, a regulating needle 1n said boring bearing on said seat, a shutting ofi" plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other, and a spiral spring resting on said transverse bar to equalize shocks resulting from misignitions.
  • a ioatless carburetor comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass in said transverse bar, a rose-like head on said bearing brass for linely distributing the benzine, a screw for clamping said head on said bearing brass and having a central boring forming a passage for the benzine, a seat in the boring in said screw, a regulating needle in said boring bearing on said seat, a shutting olf plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other said screw and needle being of rust proof steel one of said elements being tempered and the other not tempered.

Description

Aug. 1l, 1931. M. KREHER 1,818,068
FLOATLESS CARBURETOR Filed Dec. 10, 1928 3 Sheets-Sheet l Zena/221022 4fafim ug. 11, 1931. M. KREHER 1,818,068
FLoATLEss CARBURETOR Filed Deo. 10, 1928 3 Sheets-Sheet 2 34 z ,if
` Aug. 1,1-,- 1931. M. KREHR FLOATLESS CARBURERTOR Filed Dec. 1o, 1928 3 Sheets-Sheet 5 Patented Aug. 11, 1931 ET STATES PATENT` FF.
Mex Kennen, or FREIBERG, GERMANY, AssrGNOR To CURT LUDWIG, or ANNABERG,
` GERMANY FLOATLESS CARBURETOR Application led December 10, 1928, Serial No. 324,995, and in Germany September 3, 1928.
Attempts have already been made to produce carburetors without oats, but these attempts have not given a satisfactory result.
A carburetor without float must have, if it has to fulfill the practical requirements, a special construction with accurate calculation of all points important and favourable for the working. It is believed that this invention represents a type of floatless carburetor which is an important improvement over all known types of carburetors and of great importance for use on motorcars, aircraft and the like.
Several embodiments of the invention are illustrated by way of example in the accompanying drawings in which Fig. 1 shows the improved carburetor in vertical section7 partly in elevation.
Fig. 2 shows in top plan view a threearmed blade spring to be used in combination with the regulating pin.
' Fig. 3 shows incross section. a ring for supplying moisture to the suction air and for regulating the free cross-section of the passage for the explosive mixture.
Fig. 4 shows the regulating pin in elevation.
Fig. 5 shows in side elevation the regulating pin with mixing plate.
Fig. 5a is a top plan view of Fig. 5.
Fig. 6 is a cross section on line VI-VI of Fig. 1.
Fig. 7 shows in side elevation the benzine distributing'element shaped like the rose of a water can.
Fig. 7 a is a plan view of Fig. 7 seen from below. l
Fig. 8 shows in cross section partly in elevation a carburetor of modied construction.
, Fig. 9 shows in top plan view the interchangeable ring for holding the regulating needle.
Fig. 9a is a vertical section through Fig.`
Fig. 10 is a horizontal section through the fuel channel in Fig. 8.
Fig. 11 shows the benzine nozzle in vertical section.
Fig. 12 is a side elevation showing the regulating pin.
Figs. 13, 14 and 15 show each in vertical section a carburetor of modified construction.
Referring to Figs. 1 to 7 the carburetor casing is composed of two parts 1 and 2 screw connected with each other. The upper part 1 comprises a transverse bar 3 having three arms and a vhub 4, (Figs. 1 and 6) said upper part of the casing having a flange 5 at the top end. In part 1 of the casing a shaft 6 with throttle valve 7 is journaled. The part 2 o'f the casing comprises a transverse bar 8 in which a channel 9 is bored. The casing has two tubular sockets, the tubular socket 10 serving for the admission of water vand tapping into an annulargroove 11, and the tubular socket 12 forming an extension of the transverse bar 8 and serving for the admission of benzine. A nozzle insert 18 is in the outer end of the tubular socket 12. The flange 5 of the casing is connected to the engine and the air iows in through the open lower end in the direction of the arrow lines.
VOn the transverse bar 8 a bearing brass 14 is formed in which an element 15 is inserted which I call a rose of a watering can. At the centre of the lower surface of the element 15 a cavity 16 is arranged from which extend in radial directions narrow grooves 15a over the lower surface to the upper edge of said element (see Fig. 7 The element 15 is fixed in the bearing brass 19 by means of a screw 17. This screw is bored and the boring communicates with the benzine'channel 9. In the boring of screw 17 a valve seat 18 is arranged. Frein the boring of screw 17 extend laterally directedV channels 19 to the cavity 16.
The screw 17 and a regulating needle 20 in the same form together the fuel valve. The needle 17 has, as shown in Figs. 1, 4 and 5, a shutting off plate 2l for the passage of the mixture. Its point bears against the seat 18 and it is guided with a collar 22 in the boring of screw 17 and with its upper end 23 in the hub 4 of the three armed transverse barp. Between a collar 24 of the regulating needle and the transverse bar 3 a spiral spring 25 is inserted.
The screw 17 and the needle 2O are made of rust lroof steel and one of the two elements (immaterial which one) must be tempered and the other not tempered. The shuttingoif plate 21 1 and 5) which is made of light metal and has apertures 2G in the bottom plate loosely mounted von the regulating needle and coupled with. this needle by means of a three-armed blade spring 2 inserted in said plate 21. The needle and the plate are adjusted together and in dependence of each other. The plate 2l is normally standing a short distance abovevan `ollset step 2S of the element 15.
The following has to be explained:
At misignitions shocks are produced directed into the casing; they would make the needle strike hardly against the seat 18 so that this seat would be widened. In the form of construction described the plate 2l will be pressed down by such shocks until it strilies against the offset step Q8, whereby the blade spring 27 is put under tension and elastically brakes thershoclr for the needle 20.
In the part 2 of the casing a ring 29 is removably inserted.,l the inner diameter of which determines the width of the passage. By accordinglyselecting the inner diameter of ring 29, the widthof the passage can be adjusted in accordance with the actual strength of suction of the motor. Into `the ring 29 an .annular groove 30 iscut which registers with the annular groove 11 and contains a wick 31 which is continually moistened -by the water Vflowing in through thetubular socket 10 and annular groove 11. From the 'bottom of groove 30 nozzle holes 32 extend `to `the inner surface of ring 29. The vacuum existing -in the suction draft attracts the moisture from wick 31 through the hole-s 332 so that -moisture isvcontinualiy absorbed by the suction draft. The moisture is very little7 only a moist vapour, but it has `the effect to solidify the mixture.
lVhen the motor is being started the throttle valve 7 is only slightly open, to be opened wider according to requirement as soon as the engine is running. `vlBy the suction draft produced by the engine the needle 20 and plate 21 are automatically raised and air is sucked through the channel 9. The benzine flows into the boring of screw 7, thence through the nozzle holes 19 into the cavity 1G to be distributed through the grooves 15o. Atthe upper edge of the element 15 the benzine, flowing out uniformly distributed, is Adrawn along by the suction air. This arrangement of element 15 ensures.anextraordinarily fine distribution of the benzine and a very intimate mixingof benzineandair so that a perfectly working combustible mixture is produced. A thorough mixing is further favoured by t ie arrangement of plate 21. As the mixture flows around this plate 21 and through its apertures 2G eddying on the outer side is produced besides intersecting inner `iets so that the mixture is thoroughly mixed again.
In the form of construction shown in Figs. 8 to 12 the regulating needle 2O car- 4ries with the aid of a blade spring 33 a ring 34 which has an inner shoulder 35 and a transverse bar 8G with a central cavity 37. The collar of the needle 2O is inserted into this cavity 37 and the blade spring 33 connects the two elements. A spiral spring 38 rests on the ring This ring is normally in such position that its shoulder a short distance above the offset portion 28. shock striking against the needle is neutralized as the ring 3l is pressed down against the offset step 2Sg the blade spring braking elastically the shock for the needle 20. ln this form of construction of the carburetor the valve is also automatically opened by the suction draft as in the form of construction above described.
In the form of construction shown in l? ig. 13 the casing is cast in one piece. The channel 9 extends through the transverse bar 8 from oneend to the other.
Into this channel 9 a nozzle 559 is screwed, the boring of which con'in'iunicates by lateral channels d0 with an annular groove al. r'lhe benzine flows through the nozzle and through the annular groove to the central boring of screw 17. The valve is formed by av plug Ll? `mounted on a spiral spring 13. The valve chamber is closed at the lower end by a screw fill. The pin of plug 4:2 projects from the casing. rlhe shaft 6 of the throttle valve is rotated by a two-armed lever Ll5 and the pin of the plug is on the path of one-of the lever arms. The valve shuts oil vin the upper position. In this form of construction the valve is not opened by the suction draft but by depressing of plug l2 by means of one of the arms of lever 4:5.
According to Fig. l14 abolt t7 controlled by a spiral spring 116 is situated inthe channel 9, said bolt having a central boring communicating by a laterally directed branch 18 with the cavity 1G of the element 15. A bolt controlled by a spring 49 forms a shutting off valve. The bolt L17 has further a groove 51 in its outer surface and it is connected to a pull element to be operated from the drivers seat. 'l he spring L16 pushes the boltf7 normally forward to shut off groove 51. In this form of construction the bolt 50 is at the starting of the `engine first operated automatically by the suction draft formed in the cylinder and is moved back by the pressure of the benzine in the central boring of the bolt 17 against the action of the spring 19 thereby exposing the branch 118 and Vallowing the benzine to pass from the boring of the bolt 47 to the branch 48. The bolt 47 is not displaced by the suction but remains in the closing position. For full running of the engine the bolt 47 is pulled to the left (Fig. 14) from the drivers seat so that groove 5l is made to communicate on the right end with the benzine feed bore in the part l2 and on the left with the cavity 16.
Fig. l5 shows the channel 9 cut in the casing and joining a vertical channel 9a in which a seat 18a is arranged for a valve body 52. The valve is lifted again by the suction draft.
l. A floatless carburetor, comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass in said transverse bar, a rose-like head on said bearing brass for finely distributing the benzine, a screw for clamping said head on said bearing brass and having a central boring' forming a passage for the benzine, a seat in the boring of said screw, a regulating needle in said boring bearing on said seat, a shutting olf plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other.
2. A floatless carburetor, comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass on said transverse bar, a rose-like head on said bearing brass for nely distributing the benzine, a screw for clamping said head on said bearing brass and having a central boring forming a passage for the benzine, a seat in the boring of said screw, a regulating needle in said boring bearing on said seat, a shutting off plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other the fuel and air mixture flowing around.
said plate and in jets through said apertures of said plate so that it is again intimately admixed above said plate.
3. A floatless carburetor, comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass in said transverse bar, a rose-like head on said bearing brass for nely distributing the benzine having an offset step on its outer surface, a screw for clamping said head on said bearing brass and having a central boring forming a passage for the benzine, a seat in the boring of said screw, a regulating needle 1n said boring bearing on said seat, a shutting ofi" plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other, and a spiral spring resting on said transverse bar to equalize shocks resulting from misignitions.
4. A ioatless carburetor, comprising in combination with the casing, a transverse bar in said casing having a boring forming a benzine channel, a bearing brass in said transverse bar, a rose-like head on said bearing brass for linely distributing the benzine, a screw for clamping said head on said bearing brass and having a central boring forming a passage for the benzine, a seat in the boring in said screw, a regulating needle in said boring bearing on said seat, a shutting olf plate having apertures in its bottom loosely mounted on said regulating needle, and a three armed blade spring coupling said plate with said needle so that they are adjusted together in dependence of each other said screw and needle being of rust proof steel one of said elements being tempered and the other not tempered.
In testimony whereof I affix mv signature.
MAX KREHER.
US324995A 1928-09-03 1928-12-10 Floatless carburetor Expired - Lifetime US1818068A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939230A (en) * 1971-01-18 1976-02-17 Atom Auto Pecas Ltd. Carburetors
US4673536A (en) * 1983-02-15 1987-06-16 Morris George Q Fuel admixture device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939230A (en) * 1971-01-18 1976-02-17 Atom Auto Pecas Ltd. Carburetors
US4673536A (en) * 1983-02-15 1987-06-16 Morris George Q Fuel admixture device

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