US1671330A - Internal-combustion engine - Google Patents

Description

May 29, 1928.

W. H. TANGEMAN INTERNAL COMBUSTION ENGINE IN V ENTOR. WH. @Uffa/Wm? BY A TToR Y. y

Filed Sept. 15, 1924 Patented May 29, 1928.

f imrilsn STATES PMNTw OFF Y WILLIAM H. TANGEMAN, yor o1\rr..ARm,y oALI'roRNIaVAssrGNoR To JAMES v. BALDWIN Ann HARRY e. MooRn, Born4 or LosANGnLEs, CALIFORNIA'i rNrERNAL-coMRUsrroN ENGINE.

Application `tiled September 1B, 1924. Serial No. 737,466.

pump may at all timesfbe automatically' controlled regardless off the amount of heat applied to the device. y

A further object is to `provide an auto-r matic regulating device of the character stated in which the heat regulating properties are' dependent upon and involves the use of substances whose heat` conductivity lessens as its temperature rises.

With the above and other objectsin view the invention consists in the novel and useful provision, formation, construction, asso@ ciatio'n of parts, members and features, all

hereinafter described,fshown in the drawing and pointed out in the claims.

In the drawing:

Figure' 1 is a side view of a gas engine and my thermostatic regi'ilating' device applied to the engine exhaust, with the lower end of the thermal 'pump seated in the device; n Figure 2 'is a vertical section of my regulatine` device and a cross section of the engine exhaust in which the device is mounted.` taken on the line 2-2 of Figure 3;

Figure 3 is a 'plan view of my regulating device and the exhaust taken on line 3-3 of .Figure 2, showingthe thermal pump in horizontal section; i

Figure 4 is a horizontal section of my deviceltaken on line'Llof Figure 2.

'In the several iigures'of the drawing, corresponding parts are designated by the same reference characters.

.Referring with particularity tothe drawr ing, the invention comprises the heating element in the form of a receptacle A, an expansion chamber B, and a pump 'receiving socket C.- The chamberI B is joined to the upper end of the receptacle A and in communication therewith and is of considerably larger diameter than the receptacle A, the upper wall thereof being concaved to prevent expansion and outward bulgingr under the influence of the expansion of any heat .conducting substance used in theV device.

The pump socket C is secured at its upper 'end to the upperr chamber wall b, extends through said wall, and vdepends within the f receptacle A nearly to the bottom thereof, the socket being of slightly ,less diameter than the receptacle to provide a space abe tween the -walls .of the receptacle `and rthe walls 'of the socket.- to receive `mercury or other suitable substance D. `In this pai`- ticularcase the substance used is mercury as it provides a direct metallic heat conducting contact between the walls of the receptacle andthe socket at low temperatures which is broken as the temperature rises and the nieicury changes from liquid to vapor'.` The, device as above described ismounted in the exhaust E of a gas. engine F with the receptacle A extending into theexhaust through an aperture c in the `upper wall thereof and with its chamber B resting upon said upperwalhA The lower portion of a gasoline 'vapor pumpv GrL fits tightly but slidably in the socket G and has its bottom slightly spaced from the bottom of said socket C, a gasoline supply pipe l leading into said pumpiand a dis' charge pipe 2'. leading from "the pumpv into thel reservoir or carburetor well H.

The heat of the exhaust-` Ewis conducted through the wall of the receptacle A, the mercury D and the wall of the socket C to the pump part Gr, thereby heating the gasoline inthe:pumrp`v to such degreelas t0 cause vaporizat-ion and expansion thereof asa necessary preliminary' to the operation of At low temperatuies,tlie mercury remains in liquid form and'in contact with the wall of the receptacle A and the socket C, which in turn contacts with the pump member G, thus providing a good heat conducting metallic contact between the hot exhaust gases and the pump memberG. lAs' the temperan ture Aof the 'exhaust rises', the' ymercury eX- pan'ds and ultimately vapori'ze's to break the good'heat conducting'metallic Contact be` tween 'the (nihau's't gases and' the member G, thereby reducing the'temperature of the latter. As the temperature of member G falls, the mercury vapor liquefies to establish metallic'l contact again, and this alter-A nating vaporizing and liquefying of the mercury operate to keep the temperatureof pos mre ,01x

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