US1486760A - Intake-manifold attachment - Google Patents

Description

March 11 1924. 1,486,760 F. A. JOHNSON ET AL y INTAKE MANIFOLD ATTACHMENT Filed March 17 1923 Patented Wlan'. 11, i924.

FRANK A. 3GHNSON, QF AURORA, AINE) JOHN AHLGREN, OF BATAV'A, ILLIOIS.

INTAKE-MANIFOLD ATTACHMENT.

Application led March 17, 1923.

T o all whom t may concern.'

Be it known that we, FRANK A. JOHNSON and JOHN AHLenni-r, citizens of the United States, residing at (1) Aurora, (2) Batavia,

t in the county of Kane and State of lilinois, have invented certain new and useful Improvements in an intake-Manifold Attachment, of which the following is a speciiication.

This invention relates to attachments for internal combustion engines and the primary object of the invention is to provide a novel device adapted to be inserted in the intake manifold for insuring the correct breaking up of the combustible mixture and the correct commingling of the constituents thereof, prior to the entrance of the mixture into the engine cylinders, thereby insure the correct operation of the engine.

Another object of the, invention is the provision of a body formed of a spirally wound wire disposed in the entrance conduit to the manifold through which the gas and air from the carburetor is adapted 23 to be sucked, the convolutions of the coil tending to spread further apart, according to the amount of suction of the engine pistons, the passage of the gas and air between the convolutions tending to break up the gas and air into small molecules and effectively commingle the gas and air together to form the correct combustible charge.

A further object of the invention is to provide novel means for mounting the attachment within the manifold, so as to permit the holding thereof in correct position without displacement.

Vith these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawings, forming a part of this specification, in which drawings:

Figure 1 is a longitudinal section through a portion of an intake manifold showing the improved attachment incorporated therewith, parts of the attachment being shown in section.

Figure 2 is a detail transverse section taken through the attachment on the line 2-2 of Figure 1 looking in the direction of the arrow.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the serial no. 625,806.

several views, the letter A generally indicates an intake manifold, B the upper end of a carburetor connected therewith and C the improved charge refining attachment.

The manifold A can be of any preferred type or construction and includes the depending body portion 5 and the upper outwardly extending arms 6 which lead to the intake ports of the cylinders. The lower end of the body portion 5 of the intake manifold A is provided with an outwardly extending annular flange 7 which is adapted to normally abut the outwardly extending annular iiange 8, formed on the upper outlet end of a carburetor. The carburetor indicated by the reference character B can be of any preferred type or character.

The improved attachment C comprises a body 10 formed of wire wound spirally to provide a plurality of convolutions 11, all of which are of substantially the same diameter. These convolutions 11 normally fit relatively close to one another, and owing to the inherent resiliency of the material from which the body is formed, the coils will automatically spread, when a suction is formed in the intake manifold 6 by the operation of the pistons of the engine. It is preferred to have the wire from which the body 10 is formed of a substantial semicylindrical shape in cross section, so as to provide a flat outer face 12 and a semicylindrical inner face 13. This construction provides sharp edges which are adapted to be disposed in intimate relation, which forms means for atomizing or breaking up the gas and air into minute molecules and for permitting the thorough commingling thereof. It is obvious that the space between each pair of convolutions 11 will act as a nozzle for permitting the iiow of the charge from the attachment.

In order to hold the body 10 in correct axial relation to the body portion 5 of the manifold A, the lowermost coils or convoluti ons of the body are spread out or unwound as at 14 so as to assume a conical shape and are disposed between a pair of frusto-conical anges 15 and 16 formed on the annular'clamping plates 17 and 18. A suitable packing gasket 19 is disposed between the plates 17 and 18, and the plates 17 and 18 and the gasket 19 are placed between the abutting flanges 7 and 8 of the body portion 5 and carburetor B. Suitable bolts or the like 20 are utilized for katje@ holding the flanges 7 and 8 together and to .bring the plates 17 and 18 toward one anvvolutions 14 and thus hold the attachment C in correct position.

An inverted conical-shaped cap 25 formed of metal is provided for the upper end of the body 1G, and this conical-shaped body can be provided with an attaching; [lange 26 which can be secured in any preferred manner to the uppermost convolutions 11. This inverted conical-shaped. body 25 can be provided w'th minut-e slots 2T through which the charge is also adapted to escape.

The attachment is adapted to absorb some heat from the eng-ine and thus the charge passes through the convolutions thereof, the same will become heated to a certain extent which will tcnd to vaporizc the charge.

From the foregoing` description, it can be seen that an eXce itionally simple and durable attachment has been provided tor interna-l combustion engines, which will insure the correct comniingling ot the `as and air prior lto the entrance 'thereol to the cylinders of the engine and the breaking?y up of the charge into minute particles.

Changes in details may be made without departing from the spirit or the scope of this invention.

"What we claim as new is 1. In combination, a carburetor, a manifold, a charge refining attachment disposed between the carburetor and intake manifold including a coiled body having` the convolutions thereof of the same diameter disposed in relative close proximity to one another, and an inverted conical-shaped cap secured to the outermost convolution ol' the body provided with a plurality of minute outlet slots.

2. ln an inter al combustion engine, the combination, an intake manifold, a carburetor, an attachment for the engine clamed between the carburetor and intake manifold includingY a body 'formed from a coiled wire disposed in axial relation to the outlet port of the manifold, the convolutions being disposed in close proximity to one another and of the same diameter, an inverted conicali/iee veo shaped cap carried by the outermost convolution, a base fiange Jformed on the cap engaging the outermost convolution, the cap having' a plurality of minute outlet slots formed therein.

3. in an internal nombustion engine, the combination with an intake manifold, a carburetor and a charge relining attachment `for the engine disposed in the intake manifold including,V a body formed from a coiled wire, the convolutions of the body being of the same diameter and disposed in close proximity to one another. a cap carried by the upper end oit' the body, and a pair of clamping` members disposed between the manifold and carburetor tor engaging and holding the lower end of the body therebetween to prevent accidental displacement thereof.

el. ln an internal combustion engine, the combination, an intake manifold, a carburetor, a charge relining attachment for the internal combustion engine including a body formed from a coiled wire having the con volutions thereof of the same diameter and dispos-ed in close proximity to one another, an inverted conical-shaped cap carried by the body, a pair of clamping` plates disposed between the manifold and the carburetor, truste-conical shaped flanges formed on the inner edge of said clamping plates tor receiving the inner end of the coiled body.

5. As a new article of manufacture, a charge refiningr device for an internal coinbustion engine comprising a spirally wound body oi.i substantially the same diameter throughout its entire length, a cap carried by the outer end of the body, a pair ot clamping plates, compression gaskets disposed between the plates, means for bringing;` the plates toward each other, and :truetoconical shaped flanges formed on the inner edges olz the plates ttor receiving the inner end ot said coiled body.

ln testimony whereof we affix our signatures in presence of two witnesses.

FRANK A. JOHNSUN. JOHN AHLGBEN. Vilitnesses:

VERNON L. CARR, 'r'ro l-lonn.

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