US1417308A - Explosive-engine attachent - Google Patents

Description

1.1., ELLIS AND 0.-A. KERN.

EXPLOSIVE ENGINE ATTACHMENT.

APPLYCATION FILED APR. 14. 132i.

1,417,308. 7 I Patented May 23,1922

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I JOHN I. Ems AND ORA A. KEEN, OF NEEHVILLE, TENNEEISEE.

EXPLOSIVE-ENGINE ATTAGHMEN '1.

Specification of Letters Patent.

Patented May 23, 1922..

Application filed April 14, 1921. ,Ser-ial No. 461,354.

To all whom it may COflGT'fb. I

Be it known that we, JOHN T. ELLIS and ORA A. KERN, citizens of the, United States, residing at Nashville, in the county ofDavidson and State of Tennessee, have invented certain new and useful Improvements in an Explosive-Engine Attachment, of WlllCll the following is a specification.

The invention relates to an improvement in attachments for explosive engines, and more particularly to a heating attachment for the fuel supply systems thereof.

The principal object of the invention is to provide for a heating meansfor the fuel supply .of an explosive engine, and one in the form of an attachment or accessory to such engine, whereby to effect a vaporization of the fuel just prior to its discharge into the cylinder, or cylinders of an engine; for the more perfect combustion of the fuel; for a marked lessening in amount of carbon deposit within the cylinder or cylinders from such combustion therein; and for obtaining maximum power from a minimum fuel consumption, with better engine performance and a more rapid and smooth acceleration thereto. Another object of the invention is to provide for an attachment of the character men'- tioned, and one in the form of an electric heating coil adapted to be removably lnterposed in the path of the fuel at a point, either within the carburetor, or the engine manifold, or between the same as may be desired or convenient, and which may be readily connected to or disconnected from a suitable source of current supply, such as the ignition or lighting cirduits of an automobile, or a separate battery or generator circuit as may be feasible or necessary. 7

With the foregoing and other-objects in view-the. invention 1 resides in the certain novel and useful construction and arrangement of parts as will be hereinafter more fully described, set forth in the appended claims, andillustrated in the accompanying drawings, in which 1 Figure 1 is a fragmentary detail, partly in section, of an engine manifold showing the preferred embodiment and application of the invention thereto, and,

Fig. 2 is an enlarged longitudinal section through the device per se.

Referring to the drawing. the numeral indicates a conventional form of engine manifold, llthe point of connection therewith of a carburetor (not shown) and 1.2 an interiorly threaded opening in the inlet portion of the manifold adapted forthe inser tion and securing therein of a heating attachment forming the subject matter of the present invention.

The heating attachment comprises an elongated cylindrical shell 13 closed at its inner end and having the outer end portion of its wall thickened to a greater diameter to provide an exteriorly threaded portion 14 adapted for engagement in the boss 12 of the engine manifold 10, the innerportion of the shell 13 being of a length toextend entirely across the passage leading to the manifold proper from the end of the same to be connected to a carburetor. The extreme outer end of. the portion it beyond the threaded section thereof, is formed to provide a headed portion '15 having flat tool or wrench en gaging surfaces for facilitating the inser- I tion and removal of the shell to and from position within the boss 12.

Extending within the bore of the shell 13, and spaced concentrically of the wall thereof, is a core of high heat resisting quality, the inner end of which is of a screw 17 threaded through the integral end wall of the shell 13, while the outer end of the same is formed with a cylindrical enlargement the shell inward from its open end. The outer thickened end portion of the shell 13 is formed with a counter-bore 19, concen trically of the main bore thereof, andsnugly fitting into this counter-bore is a plug 20, also of an insulatin the longitudinal center of which is extended a binding'post or screw 21, the free threaded end of the latterbeing provided with a bind- .ing nut 22, for the connection thereto of one conductor 23 of th cuit (not shown). I The inner headed end of the binding post or screw 21 is disposed within a semi-circular recess 24 formed in the innerend of the plug 20, and which provides for a space between the same and the opposed end of the core 16. Coiled around the core 16'is a heating element or resistance wire 25 which has one end secured beneath the inner headed end of the binding post or screw 21., and its other end engaged in the socket opening 26 formed in the inner end of the core 16 for the reception of the supporting screw 17, which screw 17,

e current supply cirsupported in position by means 18 which snugly fits the bore of g, material, and through 16 of an insulating material ogether with the shell forms a ground connection between the coil and the en gine manifold. For retaining the plug 20 securely in position within the counter-bore ill of the shell 13,9. set screr is threaded radially inward of the thickened. end portion 'lff), that-its inn end frictionally contacts the periphery oi t a plug.

.l roin the foregoing, it will be obvious that all oi the fuel dra' vnirom its source of carhuration will be subjected to the heating eilect of the coil within the shell 13, in addition to being further conditioned for more perfect combustion by its impacting action against the wall of the latter, since the shell extends entir across the path of the fuel in a manner to rovide restricted passages at its opposite for the flow of the fuel around the same to the manifold proper.

For the installation or" these heating coils,.

which may be manufactured as separate units capable of general application to enplosive en 'ines, it is contemplated to simply drill a suitabie sized opening in the manitold as now provided on engines, thread the same for the reception of the threaded portion of the shell 13, and close the opening with a suitable screw-plug (not shown), when the heating device is not in use, as in extremely hot weather. In cold weather, or when otherwise desired, this plug can be removed, and the shell 13 threaded into position, with the binding post oi"; screw thereof properly connected to one side of the current supply circuit as hereinbefore stated.

It is to be thoroughly understood that, While the attachment has been described in specific terms and illustrated in preferred details of construction, arrangement and application, various changes and modifications of the same may be provided or resorted to Without depa and scope of the'inventi Having thus fully descrioed the-invention, what is claimed, is z- 1. An attachment of the class described comprising a cylindrical metal snell clos d at its inner end, and adapted to be remorably inserted into the manifold of an engine, a core oi insulating material disposed within said shell and spaced concentrically of the bore thereof, a coil of resistance wire wound on said core, screw threaded inwardly of the closed end of said shell and engaging theinner end oi? said core to space the same concentrically thereof, said screw acting to secure the inner terminal of said coil and to ground the same to said shell, and an insulated binding post carried at the outer end of said shell having connection with the other term Hill. of said coil.

2. The combination with an explosive engine including the carbureter connections leading to and connecting the intake inanifold of the engine, of a hollow metal shell closed at its inner end and adapted for threaded engagement with an opening formed in the intake manifold of the engine and extending in the path of the fuel flowingtherethrough from the carbureter connections thereof, a core of insulating material extending within said shell and spaced from the walls thereof, a closure plug for ting from the spirit the outer open end or" said shell, a binding post carried by said plug closure, an electrically heated coil wound on said core and having one of its ends connected to said binding post and the other end thereof grounded to said shell and intake manifold.

In testimony whereof, we afiix our signatures hereto.

' JOHN T. ELLIS.

ORA A. KERN.

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