US1657055A - Mixing and supercharging device for internal-combustion engines - Google Patents

Description

Jan.24, 1928.

R. B. WOODCOCK MIXING AND SUPERCHARGING DEVICE FOR INTERNAL COMBUSTION ENGINES Filed Aug. 10. 1925 FeoM CA Q5 ueerzle snow ke p Roy 5 n/oopcocK. v

Patented Jan. 24, 1928.

UNITED STATES PATENT Ol 'FI Clzl.

ROY B. WOODCOCK, OF WINNIPEG, MANITOBA, CANADA.

MIXING AND SUPERCHARGING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application filed. August 10, 1925. Serial No. 49,494.

.My invention relates to a mixing and supercharging device for internal combustion engines, and the objects of my invention are: first, to provide a simple and economically constructed means for drawing fuel from a carburetor, thoroughly mixing the sameand forcing thesame at great pressure into the cylindersof an internal combustion engine; second, to provide a means of this class which may be readily installed on internal combustion engines now in use; third, to provide a novelly constructed propelling means for the fuel gases from a carbureter and forcing the same under pressure into the cylinders of an internal combustion engine; fourth, to provide a novel turbine means for actuating the engine supercharger; fifth, to provide a means of this class whereby the cylinders of the engine may be supercharged before starting the engine; sixth, to provide a novelly constructed means for drawing gases from a conductor and compressing the same, and seventh, to provide a means of this class which is particularly simple and economical of construc tion, durable, efiicient, and which will not readily deteriorate or get out of order.

With these and other objects in view, as will appear hereinafter, my invention consists of certain novel features of construction, combination arid arrangement of parts and .portions, as will be hereinafter described in detail and particularly set forth in the appended claims, reference being had to the accompanying drawings and to the characters of reference thereon, which form a part of this application, in which: Figure 1 is a partial side elevational view and partial sectional view of my internal combustion engine fuel mixing and supercharging means connected to the discharge end or duct of a. carbureter and with the intake end ofthe intake manifold of the engine and showing the turbine for actuating the same connected with a fluid pressure tank, shown fragmentarily, the sectional portion of the view being taken through 11 of Fig. 2; Fig 2 is a transverse sectional view thereof on a reduced scale, taken through 2-2 of Fig. 1, showing the compressor portion of my means connected with the intake manifold, shown also in section, and Fig. '3 is an end elevational view of the fluid actuated turbine, shown on a reduced scale, showing certain parts and portions thereof broken away and in section to facilitate the illustration.

Like characters of reference refer to similar parts and portions throughout the several views of the drawings.

The main casing of my means, indicated by 1, consists of a frusto-conical casing portion 1, which merges at its enlarged end into a cylindrical portion 1". The. small end of the frusto-conical casing portion 1 is connected to the discharge end or duct 2 of a carbureter, shown fragmentarily, or any other fuel conductor. The cylindrical portion 1 of the casing is provided with a tubular discharge passage or duct 1 which is connected tangentially with thecasing portion 1", as shown best in Fig. 2. -This tu' bular discharge passage or duct 1 may be connected with the intake manifold 3, as shown in Fig. 2 of the drawings, or may be directly connected with the intake port of an internal combustion engine cylinder.

In the frusto-conical portion 1 of the casing 1 is positioned a frusto-conically shaped propelling member 4, which consists of :1 hub 4 and a plurality'of blades or vanes 4 arranged helically around and supported by the hub 4*. It will be noted that the pitch of the vanes 1 near the enlarged end of the propelling member 4 is preferably less than that at the smaller end to .concentrate to a certain extent only for the enlarging of the one end thereof, the cross-sectionalarea be tween the vanes at the enlarged end of the member 4 being still retained greater than at the opposite end to provide for greater rarification of the gases at the enlarged end of the member 4 so as to facilitate the drawing of the gases from the carbureter or duct 2. The ,fuel gases passing at high velocity through the propelling member 4 and impinging ag'ainst the vanes thereof cause com plete breaking up of the fuel and the thorough mixing thereof with the air or other oxygenizing agent.

The hub portion of the member 4 is mounted on and secured to a shaft 5, which is revolubly mounted in ball bearings and 7, the former beingjsupported at the middle portion of a skeleton frame or spider 8 near the small end of the casing 1, as shown in Fig. 1. The other ball bearing is supported at and by the end wall at the enlarged end of the casing 1. On the shaft 5, be-

yond the large end of the propell ng memher 4, is mounted a fan or compressor mem her 9, which is also secured to the shaft 5. This fan or compressor member 9 1s provided with a plurality of outwardly radispent gases.

iii

'- engine and derives its ating vanes or blades 9*, which extend close to the end wall and the cylindrical wall of the casing 1.

The turbine for rotating the shaft 5 consists of a casing 10, preferably secured to the enlarged end of the casing 1, and a rotor 11 secured to the outer end of the shaft 5 and revolubly mounted within the casing 10. Fluid under pressure is directed a ainst the blades of the rotor 11 by means 0 a nozzle 12 tangentially connected with the casing 10. Said casing is also provided with a discharge conductor 15 for the exhaust of the The. nozzle 12 is connected with a pressure tank 13, there being provided a regulating valve 14 in the conductor connecting said tank with said nozzle for controlling the flow of fluid to the latter. The tank 13 is connected with one or two cylinders of the same internal combustion s under pressure (firom the burnt gases o the engine cylin ers.

It will be noted that the propeller member 4' is adapted for mixing and rarefying the fuel gases and the fan 9. is primarily adapted for compressin the gasses for supercharging the engine,%ut also aids in further mixing the fuel with the air.

.It will be noted that with asupercharger of this construction, the cylinders of the engine may be supercharged with fuel gases be fore actually starting the engine by opening the valve 14 to the pressure tank 13 and turningthe engine with the starter; thus the superchargin operation is not dependent directly upon t e operation of the engine.

Though I have shown and described a particular construction, combination and arrangement of parts and portions, I do not wish to be limited to this particular construction, combination and arrangement, but desire to include in the scope of my invention, the construction, combination and arrangement substantially as set forth in the appended claims. I

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: I

1. In a mixin and supercharging device for internal com ustion engines, a substantially frusto-conical casing open at its small I end and provided with a discharge passage at its large end positioned tangentially therewith, a substantially frusto-conically shaped fluid propelling member revolubly mounted in said casingand provided with substantially helically shaped vanes, and a of said propelling member and revoluble therew th, said, compressor member being provided with vanes substantially parallel with its axis and radiating outwardly therefrom adapted to discharge a-fiuid directly into said tangentially positioned discharge passage. 1

2. In a mixing and supercharging device for internal combustion engines, a substantially frusto-conically shaped casing provided with an inlet at its small end and an outward radiating discharge passage at its large end, a substantially frusto-conically shaped fluid propelling member revolubly mounted in said casing and provided with substantially helically shaped vanes, and a compressor member secured to the large end of said propelling member and revoluble therewith, said compressor member being provided with vanes substantially parallel with its axis and radiating outwardly therefrom adapted to discharge a fluid directly into said outwardly radiating discharge passage.

3. In a mixing and supercharging device for internal combustion engines, a casing consisting of a .frusto-conically shaped portion and a cylindrical portion at the large end of said frusto-conically shaped portion, the small end of said frusto-conically shaped portion being provided with an axial opening and the cylindrical portion being provided with a discharge passage positioned tangentially therewith, and a fuel mixing and propelling member consisting of a subst-antially frusto-conically shaped portion 1 sitioned discharge passage.

4. In a mixing and supercharging device for internal combustion engines, a casing consisting of a frusto-conically shaped portion and a cylindrical portion at the large end of said frusto-conically shaped portion, the small end of said frusto-conically shaped portion being provided with an axial openinn ing and the cylindrical portion beingprovided with a discharge passage positloncd.

tangentially therewith, a substantially frusto-conically shaped fluid mixing and propelling member provided with substantially helically shaped vanes revolubly mounted in the frusto-conically shaped portion of said casing,'and a compressor member positioned in the cylindrical portion of said casing, rev oluble with said substantially frusto-conicall shaped mixin and r0 llin m b compressor member secured to the large end y g P P g stantially in shape with the interior of the cylindrical ortion of said casin 5. In a evice of the class described a mixing device comprisinga casing provided with a small end adapted to be connected with the discharge ortion of a carbureter, and an enlar ed end adapted to be connected to the inta e of an engine, and a fuel mixing member revolubly mounted in said casing and provided with substantially helically shaped vanes, the cross-section of the spaces between the vanes at the large end of said casing being greater than the corresponding cross-section of the spaces between the vanes at the small end of the casing.

6. In a mixing and supercharging device for internal combustion engines, a casing provided with a small end ada ted to be connected with the discharge portion of a carburetor, and an enlarged end adapted to be connected to the intake of an engine, and a fuel mixing and compressing device revolubly mounted in said casing provided with substantially helically shaped vanes, the crosssection of the spaces between the vanes at the large end of said casing being greater than the corres on'ding cross-section of the spaces between t e vanes at the small end of the casing, and a compression fan secured in connection with the helically shaped vanes and positioned at and within the large end of the casing communicating with the intake manifold.

In testimony whereof, I have hereunto set my hand at Pryor, Oklahoma, this 5th day of August 1925.

ROY B. WOODCOCK.

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