US2240893A

US2240893A - Turbulator

Info

Publication number: US2240893A
Application number: US319788A
Authority: US
Inventors: Henry R Micka
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-02-19
Filing date: 1940-02-19
Publication date: 1941-05-06
Anticipated expiration: 1958-05-06

Description

y 1941- H. R. MICKA 2,240,893

TURBULATOR Filed Feb. 19, 1940 myw% ATTORNEYS Patented May 6, 1941 UNITED STATES PATENT oEElcE 2,240,893 TURBULATOR Henry R. Micka, oshkosh wis.

Application February 19, 1940, Serial No. 319,788

3 Claims. (Cl. 48-180) This invention relates to improvements in fluid turbulators and especiallyis concerned with a novel turbulator useful in conjunction with an internal combustion engine for increasing the degree of homogeneity of the combustion mixture delivered through the carburetor to the manifold.

In many types of internal combustible engines now commonly in use the efiiciency of operation is diminished by reason of nonhomogeneity of the combustible mixture delivered from the carburetor to the manifold whereby particles or droplets of fuel are physically carried in the air stream into the carburetor with theresult that accumulations of fuel in the carburetor impair proper control by the operator of thericbness of the fuel mixture delivered to the engine.

It is an object of the present invention to provide a turbulator suited to mounting within the intake manifold of an internal combustion engine carburetor whereby homogeneity of fuel-air mixture delivered to the carburetor is promoted by reason of agitation of the mixture during its passage through the manifold.

One of the disadvantages of existing types of turbulators when used for the purpose mentioned above is that each frequently represents a compromise in the sense that a different degree of turbulation is suited to high pressure intake systems as contrasted to the degree of turbulation preferable for low pressure systems. It therefore is an object of the present invention to provide a novel turbulator characterized in that elements of the turbulator active in promoting homogeneity of fluid passed thereby are adjusted in a manner having relationship to the rate of flow of the fluid, thereby assuring suitable turbulation for both high and low pressure delivery of fuel-air mixture to the carburetor.

An important advantage of the novel turbulator device according to this invention is that it is suited to attachment to substantially any type of internal combustion engine now in use without requiring the extensive replacement of parts or special machining of parts of the engine.

Among the noteworthy features of the novel fluid turbulator according to this invention are its simplicity and ruggedness of construction, the former well suiting the device to manufacture under conditions of mass production and the latter assuring long useful life without occasion for repair or replacement.

Other objects, advantages and features of the new and improved turbulator according to the present invention will be apparent to those skilled in this art during the course of the following description.

Regarded in certain of its broader aspects, the novel fluid turbulator according to this invention comprises means comprising a bridge-piece for mounting the device within the intake manifold of a carburetor; a shaft mounted on said bridgepiece; a first and a second spider each freely rotatably mounted on the shaft; reeds pivotally mounted on said spiders having portions sensitive to centrifugal action whereby the reeds move outwardly depending upon the rate of rotation of the spiders, and spring tensioning means for holding the reeds normally near the shaft.

In order to'facilitate a fuller and more complete understanding of the present invention a specific embodiment thereof herein illustrated will be hereinafter described, it being clearly understood, however, that the illustrated embodiment, although presently preferred, is provided solely by way of example of the practice of this invention and not by way of limitation thereof except insofar as the invention is recited in the subjoined claims.

Referring then to the drawing,

Figure 1 is substantially a side elevational view of the presently preferred embodiment of this invention showing the same mounted in position of use within a section of carburetor and intake manifold,

Fig. 2 is essentially a transverse sectional view of Fig. 1 taken along the plane indicated by the line 2-2, and

Fig. 3 is a perspective view of one of the reeds showing the same attached to the upper spider.

Referringnow particularly to Fig. 1 it will be noted that the novel fluid turbulator according to the present invention generally designated by the reference character It comprises a washer l I mounted between the flanges a and b of the intake manifoldA and the carburetor B. The washer includes formed integrally therewith a bridge-piece Ila which is distorted slightly by bending below the plane of the washer to present essentially the configuration illustrated in Fig. 1.

An opening is formed in the approximate center of the washer bridge-piece Ila to receive the threaded end portion In of the shaft l2 which is rigidly mounted therein by means of nuts I2b whereby the shaft extends axially downwardly from the carburetor into the intake manifold. Near the bottom end of the shaft 12 an integrally formed shoulder I20 is provided against which rests a first or lower spider [3 held in position upon the shaft end by means including a bolt H01 in a manner such that free rotation of the spider is permitted although axial motion along the shaft is precluded. A tensioning spring l4 sleeved upon the shaft l3 and connected at one end to the shoulder l2c is attached to a sliding collar I5 positioned upon the shaft l2 between the place of attachment of the shaft to the bridge-piece Ha and the shoulder essentially as shown. The collar I5, is peripherally grooved to receive portions of a second or upper spider l6 freely rotatingly mounted thereon and spaced with respect to the first spider substantially as shown in Fig. 1. In distal parts of the upper spider l6 are pivotallymounted downwardly freely dependent longitudinally twisted reeds l1 coupled at their extreme bottom ends to the lower spider l3 by means of connector links [8 each pivotally attached both to the lower spider and to the corresponding reed. As will be evident from the foregoing description, the assembly of reeds and spiders is freely rotatable about the axis of the shaft l2 and the spiders are urged toward each other by the spring tensioning means I4 whereby the lower portions of the reeds I! are drawn by the connector links I3 toward the axis of rotation.

In the use of the device gaseous mixtures of fuel and air are passed through the carburetor to the intake manifold A and, in passing to the intake manifold, the gaseous mixture acts upon the freely rotatable assembly of reeds and spiders causing the same to spin about the axis of the shaft I2. It will be obvious that the rate of rotation of the assembly will be proportional to the rate of travel of the gaseous mixture from the intake manifold and it also will be apparent, it is thought, that the rotation of the assembly will at least tend to promote homogeneity of the gaseous mixture in that it will introduce into the path of the gaseous material a moving fanlike structure which will cause turbulation. As the assembly rotates centrifugal force acting upon the lower parts of the reeds I! will tend to move the same radially outwardly from the axis of rotation and in so doing will shift the upper spider 16 mounted on the collar 15 upwardly along the shaft l2 against the action of the spring tensioning means M. A balance therefore is attained at all times between the centrifugal force acting to move the reeds outwardly and the spring tensioning force acting to move the ,reed end portions toward the axis of rotation. It follows therefore that the crosssectional area swept by the moving turbulator will be proportional to the rate of transfer of gaseous material from the intake manifold and, accordingly, that the turbulation will be directly proportional to the pressure of material delivered from the manifold.

It is to be understood that this invention is capable of extended application and is not confined to the precise illustrated forms nor described construction and, therefore, such changes and modifications may be made therein as do not affect the spirit of the invention nor exceed the scope of the appended claims.

Having thus described the present invention, what it is desired to secure by Letters Patent is:

1. A fluid turbulator comprising a bridge-piece adapted to be mounted within a manifold; a shaft, rigidly mounted on said bridge-piece extending vertically downwardly into said manifold; a first spider freely rotatably mounted on the bottom end of said shaft; a second spider freely rotatably mounted upon said shaft above said first spider; downwardly freely dependent longitudinally twisted reedspivotally mounted on distal portions of said second spider, connector links pivotally attached to bottom portions of saidreeds and to distal portions of said first spider; and means urging said spiders toward each other whereby the reeds are urged toward the axis of said shaft.

2. A fluid turbulator comprising a washer receivable between the flanges of a carburetor and a manifold, a bridge-piece integrally formed with and extending across said washer; a shaft, rigidly mounted on said bridge-piece extending axially downwardly from within said carburetor into said manifold; a first spider freely rotatably mounted on the bottom end of said shaft; a collar slidingly mounted on said shaft between the first spider and the bridge-piece; a second spider freely rotatably mounted on said collar; downwardly freely dependent longitudinally twisted reeds pivotally mounted on distal portions of said second spider, connector links pivotally attached to bottom portions of said reeds and to distal portions of said first spider; and a tensioning compression spring sleeved on the shaft and connected tothe collar and the shaft for forcing the collar upwardly against the tendency toward movement produced by centrifugal force when the assembly of reeds and spiders rotates due to passage of fluid from the manifold to the carburetor.

3. A fluid turbulator, comprising a bridge piece adapted to be mounted between a manifold and a carburetor, a shaft rigidly mounted on said bridgepiece and extending vertically into the manifold, a spider freely rotatably mounted on the bottom of said shaft and held against longitudinal movement, a second spider freely rotatably mounted upon said shaft above said first spider and longitudinally movable thereon, a coil spring connected to the spiders for drawing the same together, downwardly freely dependent longitudinally twisted reeds having bifurcated lower ends, and connector links pivotally mounted in the bifurcated ends of the reeds and pivotally connected to the second spider.

' HENRY R. MICKA.