US1415184A

US1415184A - Device for preheating the explosive mixture in explosion engines

Info

Publication number: US1415184A
Application number: US362553A
Authority: US
Inventors: George W Mcilrath; Jack E Taylor
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-03-01
Filing date: 1920-03-01
Publication date: 1922-05-09
Anticipated expiration: 1939-05-09

Description

G.- W. McILRATH AND 1. E. TAYLOR.

DEVICE FOR PREIIEATIIIG THE EXPLOSIVE MIXTURE IN EXPLOSION ENGINES. APrucAnou HlED mm. I. 1920.

1,41 5, 1 84. Patented y 1922.

lf T' NT orrice.

DEVICE FOR PREHEATING THE EXILOSIY E MIXTURE IN EXPL OSION ENGINEQ waist.

snenifinafinn of Letters Patent.

rammed may '9. 1922.

Application filed March 1. mzu. serial no. 36255115 T 0 all whom it may concern Be it known that we, Gnome lilo- ILRA'IH and JAGK E. TAYL OR, citizens of the United States, and residents of C'leveland. in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Devices for Preheating vide an improved thermal device for rarefying and preheating the explosive mixture composed of commingled gas and air as it. enters the intake or manifold of an explosion engine, and after passing through the carburetor, and also adapted to place the vapors in condition for instant ignition, by rais ing their temperature to a point just belowe that of ignition. By this means. in cold weather, the commingled gas and air will never fail to be ignited by the spark and the efliciency of the engine will be greatly augumented.

The invention comprises the einployn'ient of a multiple number of passages through which the commingled and air must pass to the cylinders through the inlet passages or manifold. and includes electrically operated means for heating these passages, the heat being transmitted from the walls of the aforesaid passages to the gases passing through them.

The invention includes a device, comprising a closure or head, which can be ttached to the flanges of the aforesaid. manifold and carburetor in such a manner as to cxcliule air and a multiple number of metallic tubes passing therethrough. which form pas ages for the commingled air and gas entering the manifold. It includes electrically heated coils, encircling the aforesaid tubes and suit ably insulated therefrom. and insulating means separating the said closure. and tubes from the walls of said ci'irburclor and inanifold.

The invention is illustrated in the arr-om panying drawings. hereinafter more fully described and specifically pointril out in the claims. In the accompanying drawings Fig. l is a vertical central sc -lion of the flanged extremities of the carburetor lllillll fold, showing the preheating clement en- .nals iiiari h severaltubularpassages.v Y

1.1; also-shows the heatiugicoiis and termile' tric current; ig: :2 i a plan of the preheater removed from the engine; Fig. 8 is a side elevation thereof and Fig. 4 1s detail of three of the coils.

In these views A represents a metal plate, which is pressed into cup shape and closes the entrance to the manifold B; I is a botton plate, which with the cup shaped plate forms an enclosure through which pass the short metal tubes C, C.

The cup shaped plate closes the entrance to the manifold B, leading to the engine evlinders, and the tubes C, C, form the only means of communication between the carbureter D, and the manifold, and the explosive mixture must pass through them.

Encirclin these tubes. are shown the heating coils E, t mounted upon the insulating spools F. F, and the coils are connected in series in the electric circuit G, passing through terminals H, H.

The source of electricity may comprise a battery, a dynamo or other convenient generator, and an insulation is shown at J, J, preferably formedol asbestos sheets. which form an air tight gasket. Between these sheets the electric wires pass. Also the terminals are insulated to prevent the escape of the electric current to the engine casing or cylinders. Or if desired, one end of the circuit may be grounded in the engine cylinders.

The voltage of the electric current and the diameter of the wire in the coils will determine the degree of temperature produced in the metal tubes. which should be sufficientli high to raise the temperature in the explosive mixture to nearly the ignition point, so that the action of the spark will never fail to produce instant ignition.

Having described the invention what we claim as new and desire to secure by Letters Patent is i l. The combination with the carburetor and intake passage of an explosion engine of a closure for said passage. said closure forming a hollow body formed .in two portions, hollow metallic tubes connecting the ends of said closure. resistance coils encircling said tubes, insulating means between said portions of said closure, said coils passing between said insulating means.

2. The combination with the carburetor and intake passage of an explosion engine, oi a closure for said passage, said closure form ing a hollow body formed in CWOPOLtlOHS, hollow metallic tubes connecting the ends of said closure, resistance coils encircling. said tubes, insulating means betwen said portions of said closure, said coils passing between said insulating means and insulated terminals for said coils.

3. In a device for the purpose set forth, a closure, metallic tubes passing through the opposite ends of said closure, insulated 4 wires passing around said tubes, said closi-i re-forn ed n two portionasheets of insula- 15 'tlon" secured between said portions, said in- ;sulatedr wi respassing between saidsheets,

and terminals for said Wires In testimony whereof. We hereunto set our hands this 7 day of February, 1920. GEQRGE W. MCILRATH. JACK E. TAYLOR.

WM. M. MoNRoa'.