US2374517A

US2374517A - Fuel atomizer

Info

Publication number: US2374517A
Application number: US498602A
Authority: US
Inventors: George K Wilson
Original assignee: DECUM SYNDICATE
Current assignee: DECUM SYNDICATE
Priority date: 1943-08-13
Filing date: 1943-08-13
Publication date: 1945-04-24
Anticipated expiration: 1962-04-24

Description

p i12 1945. G. K. WILSON 2,374,517-

FUEL ATOMIZER Filed Aug. '13, 1945 Patented Apr. 24, 1945 or'rlcr.

. "1. 1m ATOMIZER George Wilson, Tor

onto, Ontario, Canada, asp Signor to Decum Syndicate, Toronto, Ontario,

I I Canada ApplicationAugustda 1943, Serial No. 498,602 zcl ims l" (01. 48-180) The invention'relates toimprovements in fuelatomizers as described in the present specifica tion and shown in the accompanying drawing that forms a, part of the same. I

The invention concerns particularly the :atomizing of fuel in internal combustion enginesxand has for its object the breaking up ofthe fuel to the greatest possible extent prior to introduc-' tion tothe intake manifold, whereby to increase I the intimate and homogeneous mixture of gasoline and air, and thus increase the efiiciency of I the engine as well as making for a great increase in the mileage obtainable from a given quantity i of gasoline.

The invention consists in the provision of two or more perforated partitions interposed in the fuel line between the carburettor and the intake manifold of the engine in spaced relation to one another and a series of fans alternately arranged in relation to said partitions whereby the gas is drawn successively through the perforated partitions and fed to the intake manifold" in an extremely fine vapor, the perforations in the successive partitions being oppositely directed in relation to those of the last preceeding partition and the pitch of the different fans varying somewhat, whereby to cause the gas to be agitated to the greatest possible extent.

In describing the invention reference will be made to the accompanying drawing, in which:

Figure 1 is a central longitudinal sectional view through that portion of the fuel line lying between the carburettor and the intake manifold, showing the invention applied thereto,

Figure 2 is a cross sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a cross sectional view taken on the line 3--3 of Figure 1. r I

Figure 4 is a cross sectional view taken on the line 4-4 of Figure 1.

Like numerals of reference indicate corresponding parts in the variou figures.

Referring to the drawing I indicates the fuel pipe leading downwardly from the carburettor to the intake manifold.

Interposed in the fuel pipe is a mixing chamber 2 comprising a tubular casing provided with flanges 3 at the ends thereof adapted to be secured by bolts 4 to the corresponding flanges 5 carried on the opposed ends of the fuel pipe.

6 and I are apertured partitions in the form of circular discs located intermediate the length of the mixing chamber 2 in spaced relation to one another and secured to the surrounding wall of degrees while the blades passes through the apertures in the disc.

the chamber by screws 5, orby any other'satia factory means. 'fl

Each of the discs 6 and l is provided throughoutits surface with apertures}. These; aperturesare bored at an acute angle in relation to the faces of the discs and the: perforations of one disc are oppositely directed in relation to those of the other disc whereby the gas-will be thrown from one side of the mixing chamber'to the other side in its progress to the intake manifold.

III, II and I2 are fans alternately arranged with respect to the perforated discs 6 and I, the fan I0 being positioned between the carburettor and the disc 6 in spaced relation to the said disc;

the fan II being located midway between the slightly beyond the disc I.

I The vanes, or blades, of the fan III are preferably pitched at an angle of approximately twenty of the fans II and I2, which may be termed beaters, have a pitch of approximately seventy-five degrees.

The fans II], II and I2 are fixedly mounted on a shaft I3 which extends longitudinally through the mixing chamber and through the discs 6 and 1. This shaft I3 is supported at its opposite ends in the hubs I 4 of wheel-like brackets, which latter have their rims I5 secured in any desired manner to the wall of the mixing chamber. For purposes of illustration these brackets are shown as having their rims I5 fitting within annular grooves I6 in the inner face of the casing 2 and held against movement longitudinally of such casing between the shoulders I1 at the bottoms of said grooves and rings I8 located between the

flanges

3 and 5 at the respective ends of the casing.

In the operation of the invention the gas flowing from the carburettor is drawn downwardly into the mixing chamber by the action of the fan I0 towards the face of the perforated disc 6, which latter has the effect of retarding the flow and causing the gas to back up against the pressure created by the fan. As the pressure imposed by the fan is in a straight line substantially centrally of the mixing chamber and as the gas has become banked throughout the whole surface of .the disc this central pressure on the banked gas will cause turbulation of the gas before it As the openings 9 in the disc 6 are bored at an acute angle the gas passing therethrough will be directed towards one side of the chamber but the action of the fan II will be to cause further turbulation of the gas by drawing it back to a of delivery to the manifold.

straight line and impelling it towards the disc disc 6, whereupon the fan l2 causes further turbulation of the said gas and provides for its delivery to the intake manifold.

As the apertures in one disc extend in the opposite direction to those in the other disc it will be obvious that the gas will be thrown from side to side of the chamber in its progress therethrough and the resultant agitation together with the turbulation caused by the straight pressure from the fans on the banked gas will result in the gas being thoroughly atomized at the time Whilethe mixing chamber 2 has been described herein as being interposed in the feed line between the carburettor and the intake manifold it is of course to'be understood that it may be formed as a part of the carburettor.

While I have illustrated and described the present preferred form of construction for carrying out my invention, this is capable of variation and modification without departing from the spirit ofthe invention, I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims,

What I claim is:

1. A fuel atomizer comprising a cylindrical chamber, a revoluble shaft extending longitudinally within said chamber and supported at its opposite ends in fixed apertured brackets, a plurality of fans fixed to said shaft in spaced rela- '2'. A fuel atomizer according to claim 1 in which the blades of the fan at the inlet end of the chamber are pitched at an angle of approximately twenty degrees and the bladesof the remainingfans are pitched at an angle of approximately seventy-five degrees.

GEORGE Kl