US1475920A - Humidifier - Google Patents

Description

Nov. 27", 1923. 1,475,920

C.POHL

HUMIDIFIER Filed March 8, 1921 HVVENTUR.

WJM

ATTORNIIY Patented Nov. 27, 1923.

UNITED STATES v v 1,475,920 PATENT OFFICE.

CHARLES POHL, OF LOS ANGELES, CALIFORNIA, 'ASSIGH OB TO JOHN 0. KING. OF LOS AHGELES, CALIFORNIA.

nominee.

Application med Karen-8, 1921. Serial No. 450,618.

and State of California, have invented certain new and useful Improvements in Humidifiers, of which the following is a specification.

This invention relatesto a device for introducin steam or watery vapor. into the manifol of an internal combustion engine. The invention also relates .to a device capable of functioning to.'mix air, watery vapor and fuel vapor and introducing the mixture into the manifold of the engine.

An objectof the invention is to introduce Y watery vapor into'the engine cylinders without introducing particles of water. It is not new to introduce watery vapor into the manifold between the engine and the carbureter,

but with the old devices, some particles ofv water are introduced ,into the manifold and these particles are either carried into the" engine or they run backward into the car bureter and mixwith the fuel so as, to destroy the predetermined proportions offnel and air produced by the carbureter, thus preventing the introduction of a proper to the engine for explodingin the cylinders. This device is so constructed as to I separate particles of water from the vs r.

. other. object of the invention isto provide for pre-he'atin of the air and fuelvar by the heat of e steam or watery vapor mthe radiator. v The accompanying drawings illustrate the invention: Figure 1 is aside elevation of a construction .embod 'ng the .invention,-'the upper portion of t e radiator being shown in vertical section.

I IE pipe.-

Figure 2 is an enlarged elevation of themixing chamber, or jacket, and its partsapplied to the manifold which is shown frag-j mentarily in section.

Figure-3 is a vertical sectional elevation of Figure 2, omitting the manifold, taken on a plane passing through the fuel yapor supre 4 is an inverted lan section on the line ,mdicatedby a:w, igure 2.

The engine proper is indicated at 1 and is provided with the usual intakemanifold 2 I rounding the stem bleconstruction. The fuel supply pipe to the carbureter 3, is indicated at 4. The water jacket of the engine 1 is connected by the by heat of the exploded charges in t e engine in a well known manner. The pipe 7 dischar into a 'acket' or mixing chamber 8 whic .surroun s an inner chamber 9 provided at its lower end with a'port 10 having a valve seat 11 for a valve 12. The stem 13 .of the valve extends at its lower end into the port 10 and at its upper end intoa guideway 13', there bein a coil spring 14 suretween the guide and the removable cap 15 of the jacket in which the way 13" is formed. Screw-threaded into the cap '15 is a pipe ell 16 and communicating with the ell is a port or'ports 17 formedin the cap. 15. The ell 16 is screw threaded or otherwise fastened to the manifold 2 and communicates therewith so that-on the suction stroke of the engine the pressure .is lowered in the chamber 9, which results in lifting of.the valve 12. The valve 12 will, of course, be opened to a degree dependent upon the degree of partial vacuum produced bytheengine;

' Communicating with the jacket 8 is a pipe 18 which is connected with a source of fuel vapor supply. Inthis-particular instance the pipe 18 connects with the upper portion of the engine crankcase 19 so that any hydrocarbon vapors in the crank case may be drawn therefrom throu h the pipe 18 into the jacket 8 by lowering o the pressure in the Jacket when the va ve 12 is opened. The pipe 18 could, instead; be connected to the up r rtion of the fuel tank as has hereto ore a done. When the pressure is thus lowered in the jacket 8, not onl are fuel vapors introduced into the jacket, butste'ain or watery vapor is drawn through the pipe 7 into the jacket. Since the steam 'or watery vapor in the radiator is comparatively wet, there is a tendency for some of it to quickly condense and one of the functions of thejacket 8 is to catch the condensate and separate the same from the vapors or unconnectedwith a carburetor 3 of any suitahureteifi" off from the jacket 8 from time to time tovapors, and it is thismixture that passes from the jacket 8 into the chamber 9, Where the steam and fuel become yet more inti- -mately associated, and thence through the connection 16 to the engine manifold and finally to the engine cylinders. I

The condensates in the jacket 8 are, of course, quite hot and are maintained in a hot condition by the continual introduction of steam from the radiator. It will thus be seen that a further function of the jacket 8 is to, hold a heating medium in the form of steam, the heat thereof being applied to the jacket 8 and chamber 9 so that the fuel vapors passing through'the jacket and chamber 9 will be preheated before their introduction into the engine manifold. This, of course, tends to produce a better combustible mixture in the engine than if the watery vapor and fuel vapors were introduced at a lower temperature. I

In order that the condensate may be drawn prevent filling up of the jacket with the condensate, there is provided a draincock 20 in the bottom of the jacket. 8. The valve 12 cannot be opened beyonda predetermined degree because of the upper end of the valve stem stopping against an abutment 21 formed by the end wall of the Way 13.

If the operator of the engine desires to admit thereto an auxiliary supply of air in addition to the air that is supplied through the carbureter, he may open the drain cock 20, thus admitting air from the atmosphere into the heating jacket 8 where such air will become mixed with the steamand fuel vapor mmeao to pass into the engine. Of course, any

desired means may be provided for opening a and closing the cook 20 from a distant point, for example, from the drivers seat of an automobile on which the invention is installed, such means being so well understood tail herein;

I claim 1. In a h idifier adapted for use in connection with n internal combustion engine, the combination of a jacket provided with draining means, there being a detachable cap for the jacket, a chamber positioned in the jacket and sealed to the cap, and having a port inits lower end communicating with the interior of the jacket, and a suctionope ted valve to control said port, there being an intake port in the jacket for steam and there being a pipe fastened to the cap that it is unnecessary to describe them in deand communicating with the interior of the 4 chamber.

2. In a humidifier adapted for use in conuefetion with an internal combustion engine,

the combination of a jacket provided with draining means, there being a detachablecap for the jacket, and a chamber positioned in the jacket and sealed to the cap and having a port communicating with the interior of the jacket, there being an intake port in the jacket for steamand there being "a pipe fastened to the-cap and communicating with.

the interior of the "chamber. 1

Signed at Los Angeles, California, this 1st day of March,-1921.v

CHARLES POHL.

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