US1395677A

US1395677A - Intake-manifold

Info

Publication number: US1395677A
Authority: US
Publication date: 1921-11-01
Anticipated expiration: 1938-11-01

Description

B. IVOR.

INTAKE MANIFOLD.

APPLICATION FILED rum/21, 1920.

Patented Nov. 1, 1921.

INVE/VTOR A TTOR/VEV UNITED STATES BARRY IVOR, OF CHICAGO, ILLINOIS.

INTAKE-MANIFOLD.

Specification of Letters Patent.

Patented Nov. 1, 1921.

Application filed May 21, 1920. Serial No. 383,262.

To all whom it may concern.

Be it known that I, BARRY Ivon, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in an Intake-Manifold, of which the following is a specification.

This invention relates to improvements in means for heating and vaporizing the explosive mixture employed in internal combustion motors or engines, precedent to the passage of such mixture into the explosion chambers of the engine cylinders, and it consists in certain peculiarities of the construction, novel arrangement, combination and operation of the various parts thereof as will be hereinafter more fully set forth and specifically claimed.

The principle object of the invention is to provide an intake manifold for internal combustion engines, employed for general' purposes, and of any suitable kind, but usually of the multi cylinder type, which shall be simple and inexpensive in construction, strong, durable and highly eflicient in operation, with its parts so constructed and arranged with respect to one another that they can be easily assembled and readily connected to an engine, or detached therefrom and disassembled for repairs or for cleaning the same.

A further object is to provide an intake manifold of the above mentioned general character, which shall be of vsuch construction and operation of its parts, that, the explosive mixture will not only be preheated and vaporized thereby, before its delivery to the explosion chambers of the engine, but will be supplied to said chambers under considerable force or pressure and in a whirling movement, thus preventing lean mixture or charges and reducing to a minimum danger incident to back firing.

Still another object is to provide the manifold with automatic means for atomizing the mixture as it enters the mixing chamber of the device and for causing its thorough vaporization therein.

A still further object is to afford an intake manifold which will maintain the explosive mixture at a constant or uniform temperature, thereby avoiding the troubles or difiiculties incident to the changes in weather and atmospheric conditions.

Other objects and advantages of the invention will be disclosed. in the following description and explanation.

In the accompanying drawing forming a part of this specification, the figure is a view in elevation of so much of an internal combustion engine and its appurtenances as is necessary to illustrate the invention, showing my intake manifold in longitudinal vertical section. and in operative connection therewith.

Referring now to said drawing, the reference numeral 1 designates the explosion chamber portion, of an internal combustion engine, 2 the exhaust pipe for products of combustion, 3 a portion of a pipe leading from a carbureter (not shown) and 4: my improved intake manifold, as a whole. All of these elements, except the manifold, are preferably of the conventional type, though they may be of any other construction compatible with the purpose of my invention without involving departure from the scope of the same as claimed.

As shown, the manifold 4 consists of a casing made of two oppositely tapered members 5 and 6 each of which has in its outer end an opening 7 in one of which openings is fitted one end of a pipe 8 leading to and communicating with the exhaust pipe 2 near its discharging end. This pipe 8 is by preference provided with a shut-off valve 9 for the purpose to be presently explained. Fitted in the discharging opening 7 of the member 6 of the manifold casing is another pipe'lO which may lead to the atmosphere, or if desired, it can be tapped into the exhaust discharge pipe.

The inner ends of the members 5 and 6 of the casing are provided with peripheral flanges 11 which are outwardly curved from their juncture with the body portions of the members 5 and 6 but are provided outwardly at their meeting edges with flanges or lips 12 which are secured together by means of bolts and nuts 13 as will be readily understood by reference to the drawing. The lower portion of each of the members 5 and 6 is provided at the inner end thereof with a horizontally extended apertured flange 14 which is secured by means of bolts 15 to a similarly disposed flange 16 on the upper portion of the pipe 3 which leads from the carbureter. By this arrangement it is apparent that the casing of the manifold will be supported horizontally in a secure manner near the explosion chambers of the engine, and that a somewhat enlarged chamber 17 having communication with the pipe 3 will be provided at the middle of the casing of the manifold.

Leading from the surface of each of the members 5 and 6 adjacent to the engine 1 near the outer end of each is a conduit or pipe 18 which communicates with the intake valves of the engine cylinders in the ordinary and well known way. Located in the casing members 5 and 6 are tapered plugs or members 19 and 20 respectively, which as shown are hollow or cored out and have their tapered ends disposed in opposite d1- rections. The outer ends of the tapered plugs or members 19 and 20 are provided with nipples or projections 21 which are located and suitably secured in the openings 7 of the casing members 5 and 6 in communication with the pipes 8 and 10 as shown.

One of the plugs or members, in the present instance the plug 19, is provided at its inner end with a hollow and-internally screw-threaded extension 22 into which is screwed or fitted a similar extension or tubular projection 23 on the inner end of the plug or member 20, which arrangement unites the plugs at their inner ends but in such a manner as to hold the main portion of said ends in spaced relation to one another, which space coincides with the chamber 17 provided by the flanges 11 on the casing members 5 and 6 of the manifold. Each of the plugs 19 and 20 is provided externally thereof with a convolute or spiral rib 21 which tapers from the inner ends to the outer ends of the plugs or members 20 and form between their convolutions spiral channels 25.which are by preference of the same size as the area of the intake valve openings in the cylinders with which they communicate. As shown, the ribs 24 are hollow and are of sufficient size to fit snugly against the inner surface of the casing members 5 and 6 when the plugs 19 and 20 are positioned therein.

Vertically mounted on the extensions 22 and 23 of the inner ends of the plugs 19 and 20 and by preference depending therefrom is a shaft 26 which carries a fan 27 of the ordinary or any well known construction which will be caused to rotate by the passage of the mixture from the carbureter through the pipe 3 into the mixture chamber 17 of the manifold, which operation will atomize the mixture and cause it to contact with the heated extensions 22 and 23 of the plugs or members and thus thoroughly vaporize the mixture. It is'manifest that as the exhaust is discharged through the exhaust pipe 2 a portion thereof will be deflected through the pipe 8 and will pass from thence through the cored or hollow plugs 19 and 20 and from the latter out through the pipe 10 when the same is employed. As the ribs 24 are hollow, it is evident that their walls will be subjected to the heat of the exhaust as it passes through the plugs and thus greater radiation will be afforded.

In the operation of the engine the explosive mixture will be drawn from the carbureter through the pipe 3 into the mixing chamber 17 of the manifold from which chamber it will be caused to pass with increasing velocity and with a whirling movement from the larger ends of the casing members through the, pipes or'conduits 18 into the explosion chambers of the engine. By reason of the velocity, as well as whirling motion of the mixture as it enters the explosion chambers of the engine, lean charges of the mixture will be prevented and lodgment on the walls of the manifold of hydrocarbon oils will be prevented.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is l. A device of the character described,

consisting of a casing tapered from its middle portion toward each of its ends and having communication near each of its ends with an explosion chamber of an internal combustion engine, a pair of hollow externally tapered plugs communicating with one another and located within the casing with their tapered portions coinciding with the taper of the casing, each of said plugs having an opening in its outer end and each provided on its outer surface with a spaced convolute rib in contact with the walls of the casing, a pipe leading from a supply of heat and communicating at one of its ends with the end of one of said plugs, and a pipe communicating at one of its ends with the casing between the adjacent ends of the plugs and at its other end with a supply of explosive mixture. 2. A device of the class described, consisting of a'pair of oppositely tapered casing members detachably secured together at their larger ends, each of said casing members having communication near its outer end with an explosion chamber of an internal combustion engine, a hollow plug located in each of the casing members and externally tapered in the same direction as said members, said plugs being spaced apart at their adjacent ends but in communication with one another, each of said plugs having a spaced convolute rib on its outer surface in contact with the wall of the casing in which it is located, a pipe leading from a supply of heat and communicating at one of its ends with the end of one of said plugs, and a pipe communicating at one of its ends with the casing between the adjacent ends of the plugs and at its other end with a supply of explosive mixture.

3. A device of the class described, consisting of a casing tapered from its middle portion toward each of its ends and having communication near each of its ends with an explosion chamber of an internal combustion engine, a pair of hollow externally tapered plugs communicating with one another and located within the casing with their tapered portions located in the same direction as the tapered portions of the casing, each of said plugs having an opening in its outer end and each provided on its outer surface with a convolute channel, the outer surface of the said channels being in contact with the easing, a pipe leading from a supply of heat and communicating at one of its ends with the end of one of said plugs, and another pipe communicating at one of its ends with the casing between the adjacent ends of the plugs and at its other end with a supply of explosive mixture.

4. A device of the class described, consisting of a casing tapered from its middle portion toward each of its ends and having communication at each of its ends with an explosion chamber-of an internal combustion engine, a pair of hollow externally tapered plugs communicating with one another at their adjacent ends but spaced from each other at said ends, said plugs located within the casing with their tapered portions located in the same direction as the tapered portions of the casing, each of said plugs having an opening in its outer end and provided on its outer surface with a spaced convolute rib in contact with the walls of the casing, said ribs being internally channeled, a fan mounted for rotation between the adjacent ends of the plugs, a pipe leading from a supply of heat and communicating at one of its ends with the end of one of said plugs, and another pipe communicating at one of its ends with the casing between the .adjacent ends of the plugs and at its other end with a supply of explosive mixture.

BARRY IVOR.