US1446335A - Mixing device - Google Patents

Description

1,446,335. L. W. CHAPMAN.

MIXING DEVICE.

FILED JUNEZI, I921.

gvwenhn Patented Feb. 26, 1923.

LEMUEL W. CHAPMAN 0F INDIANAPOLIS, INDIANA.

MIXING nnvrcn.

Application filed June 21,

To all whom it may concern Be it known that I, LEMUEL XV. CHAP- MAN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in a Mixing Device; and I do hereby declare the following to be a full, clear, and exact ClQSCIlP- tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In the operation of internal combustion engines utilizing liquid fuel a carburetor is employed for vaporizing the fuel and mixing the same with the air passing therethrough. l

It is a matter of common knowledge that all the particles of fuel are not broken up and v-olatilized and a a result a certain waste occurs and the engine and valve foul and carbonize.

The present invention provides a device which may be interposed in the hot air pipe or connection between the carburetor and the exhaust pipe whereby to agitate the air and insure a. more thorough mixing of the same to the end that more mileage may be obtained from a given amount of fuel and the engine rendered less liable to foul.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

WVhile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion andminor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings forming a part of the specification,

Figure 1 is an elevation of a device embodying the invention showing the same applied to a hot air pipe;

Figure 2 is an elevation of the device partly in section, and

Figure 3 is an end view thereof.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The device comprises a fan 1 which may be of any construction. Aspindle 2 receives the fan 1 and is provided at opposite ends with yieldable supporting means whereby to hold the device in operative po- 1921. Serial No. 479,264

sition. A hub 8 is molded upon each end of the spindle 2 and the fan 1 is confined between the hubs 3. Babbitt, type metal, or similar composition readily fusible. may be employed in the molding of the hub 33. The yieldable supports are molded in thehub 3 and comprise a plurality of spring arms. The supports at the ends of the spindle 2 are of similar or likeformation, each comprising a plurality of spring elements grouped about the spindle and secured at their inner ends to the hub 3. Each of the spring elements'or arms comprises a relatively horizontal portion l and opposite extending longitudinal portions 5 and 6. These element or arms are preferably formed from spring wire of suitable gage and determinate size, each being a counterpart of the other. The parts and 6 are disposed at opposite ends of the part 4 and extend in opposite direction, the parts 5 being molded into the hub 3 at the time of casting the same. The parts 6 extend outwardly and are adapted to engage frictionally with the inner wall of the pipe or like part in which the device is placed. The yieldable construction of the supporting means enables them to readily adapt themselves to the diameter of the pipe, hence the device is practically universal in its application and adaptation. The device when positioned in retained'in place by frictional engagement of the parts 6 with the inner wall of the pipe or like part receiving the mixer. The fan 1 is caused to rotate by the current passing through the pipe in which the device is located, thereby thoroughly agitating the mixture and materially assisting in breaking up the particles and insuring a more homogeneous mixture and a greater mileage from a given amount of fuel with a less liability of carbonizing or fouling the engine and cooperating parts.

As shown most clearly in Figure 1 the device is located in the hot air pipe 7 disposed between the exhaust pipe 8 and the carburetor 9. The air drawn through the pipe 7 when the engine is in operation i thoroughly agitated by coming in contact with the device, the fan being set in motionand the blades thereof operating as heaters to insure a combining, unification and expanding of the air preliminary to entering the carburetor 9 and mixing with and Vaporizing the fuel. The gaseous mixture afthe manifold 10 into the cylinders of the en: gine in a manner Well understood. The eX- haust from the engine passes off through the pipe 8 and the latter becoming heated warms the air entering; the pipe '7 through the mouth piece 11 thereof which is arranged to embrace a portion of, the exhaust pipe 8 in the usual Way.

Having thus described the invention, What I claimjsz 1. A device of the character specified com; prising a fan a spindle having the fan mounted thereon and spring elements at opposit-e ends of the spindle grouped about the same and attached at their inner ends thereto.

A. device of the character SPGClfiGflgCODlprising a fan spindle receiving the fan,

hubs at opposite ends of the spindle and having the fan disposed. therebetween and spring elements grouped about the spindle and secured at their innerends to the hub thereon 3 A device of the character specified comprising a fan, a spindle receiving the fan,

hubs cast upon, oppositeends of the spindle and having the fan disposed therebetween and spring elements grouped about the spin- 7 dle and having their inner ends molded in the hubs cast thereon.

In testimony whereof I afiix my signature in presence of two Witnesses.

LEMUEL I. CHAPMAN. Witnesses DAVID E. C AP AN, HAROLD VVAEOI-ITER.

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