US1830588A - Carburetor - Google Patents

Description

, V- 1931- H. E. BITTEL 1,830,588

CARBURETOR Filed July 23, 1930 2 SheQtS-ShGer. 1

INVENTOR ATTORNEY Nov. 3, 1931.

CARBURETOR Filed July 23. 1930 Ha ra/dfdzaa 221 5 z'zfe/ INVENTOR ATTORNEV Patented Nov. 3, 1931 UNITED STATES HAROLD EDWARD BITTEL, on ,noonnsrrnn, NEW YORK cnnnonnron Y Application filed July 23,

My presentinvention has reference to a carburetor adapted for use in connection with internal combustion engines and my object is to provide an improved form of carburetor which will serve for the production of a proper fuel mixture under all conditions of operation of the engine.

To the attainment of the foregoing the invention consists in the improvement hereinafter described and definitely claimed.

In the drawings:

Figure l is an approximately central longitudinal sectional View through a carburetor in accordance with this invention.

Figure 2 is a sectional View approximately on the line 22 of Figure 1.

Figure 3 is a perspective view of a ring member that comprises the body member of the mixing cells.

Figure 4 is a similar View of the disc that affords the top and bottom for the body member disclosed by Figure 3.

1Figure 5 is a bottom plan view of the nozz e.

The float chamber of the improvement is indicated in the drawings by the numeral 1, the same having arranged therein the usual float 2 that is designed when raised by the gasoline to a determined point to contact 30 with balance levers 3 for swinging a grooved collar 4 through which is screwed the needle galve 5 that controls the gas inlet to the cham- The chamber is formed on one end of a casting whose second end is provided with a tubular air inlet 6 controlled by an air intake gate or choke valve 7 in the usual manner.- The casting is formed with an upstanding lug 8 that has its upper end reduced, rounded and threaded and the said end has screwed thereon the tubular body 9 of the nozzle of the improvement. Between the chamber 1 and the lug 8 there is a gasoline passage 10, the vertical branch of which is indicated for distinction by the numeral 11 and is restricted but is widened from the outer end of the lug 8 for a considerable distance and this passage 12 communicates with an angle passage 13 that has a flared portion to afford a seat for a gas and air regulating needle valve 14.

1930. Serial n 470,084.

The stem of the needle-valve is screwed through an'opening in the outer wall of a downwardly directed passage 15 which communicates with the atmosphere. The head 6 of the needle valve is kerfed or grooved and the said k-eri s'or grooves are engaged by a spring arm 17 that is fixed on the outer Wall of the part 15. I

In the tubular body of the nozzle 9 there are arranged any desired number of cells, each of the same size comprising a body portion in the nature of a ring member 18 and top and bottom members int-he nature of discs 19. Each disc is centrally formed with a restricted aperture 20. The upper or outer end of the tube 9 has attached thereto a nozzle head. This nozzle head is of a particular and peculiar construction, the samecompris. ing an annular member or ringbody 21 see cured to and spaced from the tube 9 by means 22. The'outer endfof the body is rounded and tapered inwardly, as at 23, and the said tapered portion is extended into the tube 9 above the upper mixing'cell. I

The nozzle issurrounded by the mixing chamber 24which is fixed tothe main casting by'bolts oranalogous means and which mixing chamber'communicateswith an opening 25 in the casting that surrounds theboss 8 and with which the air intake tubular member 6 communicates. The restricted outer end of themixing chamber 2 1 h'asar ranged therein the usual pivoted throttle valve 26 andthe said outer end of the mixing chamberis provided with the usual flange whereby the same may be attached to the intake manifold'of the engine. r

The float 2, of course, controls the valve 5 which regulates the admission of gasoline into the chamber 1. A desired quantity of gas mixed with air flows through the passage 11, the air being admitted through the passages 15 and 16 and being regulated by the needle valve 14. The gaseous mixture enters each of the separate compartments or cells in the nozzle body so that the same is thoroughly mixed and atomized before passing through the restricted mouth 23 of the nozzle 9. A certain quantity of the mixture will flow between the mouth 23 and the body 21 of the head of the nozzle and this will be mixed with air that is let through the air intake or passage 6 and it will be noted that the fuel delivered to the several cylinders of the engine will be thoroughly mixed or atomized to insure a free and engine.

It is thought the construction and' advan; tages of the improvement will lee-understood perfect running of the and appreciated by those skilled inthe art.

to which such invention relates whenuthe foregoing description has been carefully read" in connection with the accompanying drawmgs but obv1ously I do not wish to be restricted to the precise details herein-shown and described and, therefore, hold myself entitled to make such changes therefromas fairly fall within the scope of what I claim. Having described the invention, I'claim':

1. In a carburetor, a nozzle fixed therein and extending-into the mixing chamber thereof, a plurality ofnested cells'in the body of the nozzle, each havinga-central aperture in the top thereof, a shell providing a head having an inwardly flared mouth received a in the outer end of the nozzle, and the body of the head surrounding the nozzle, means securing and spacing the head and mouththereof from the nozzle and means for ad mitting and regulating a passage of gasoline and air through the nozzle;

2. A carburetor-having-a lug arranged=i its air intake passagebetween the float-Cha m her and the mixing chamber thereof, and said float having an angle" passage therethrough provided with anangle branchthat communicates with the float chamber, said carburetor being formed with an air inlet passage which communicates with the at.- mosphere and with the passageiinthe lug and a needle valve regulating saidpassage, a' nozzle comprising a tubular body secured. on the endof the lug and extending into the mixing chamber, superimposedrings in the V nozzle, centrally apertured'rdiscs providing tops for the rings and saiddiscs and rings a shell comprising a[ affording mixing cells, cylindrical top for the mixing chamber sea cured thereto and spaced therefrom and said shell having an inwardly flaredmouth re: ceived in but spaced from the nozzle.

In testimony whereofI aiflx my signature,

HAROLD EDWARD BITTEL.

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