US2004919A - Gasoline vapor and air mixing device - Google Patents

Description

June 18, 1935. v w. s. ALVEY E1' AL 2,004,919

GASOLINE VPOR AND AIR MIXNG DEVICE Filed May 2o, 1935 Patented June 18, 1935 f .Y V- i 2,004,919 GAsoLINE VAPOR AND AIR Alveyand John M. Mikkelsen, Philadelphia, Pa. r

f William S.

'Pars MrxiNe nevica' v IApplieatim'i May' 20, 1933, serial No. 671,998

1 claim. (o1. isf-isc) Our-invention relates to gasoline saving devices use inA connection with vinternal combustion jmotors andfmore particularly relates to a novel idevice for vaporirzi'ng gasoline, gasoline vwith air, and'rinj'ejctingf further air into the mix- {tur'e lafter thegasoline has left a carbureter and before-it` has entered a manifold. *Our invention comprises a novel device, adapted for` ready insertion between a carbureter and a manifold,4 whichv includes propellers and a propellet-'shaft actuatedby suction from the manifold, which shaft carries breaker `blades for thoroughly vaporizing the gasoline and mixing it with the air coming from the carbureter together with means for injecting further air into the mixture after it has passed the breaker blades, which means may be controlled to go into action at a predetermined desired time.

An object of our invention is to provide a novel means for decreasing the gasoline consumption of internal combustion engines without decreasing the efiiciency thereof as measured, in terms of pick-up, starting ease, or low speed performance.

A more specific object of our invention is to provide a novel device for vaporizing more completely the gasoline as it comes from the carbureter, mixing itwith the air and, after such vaporization and admixture, injecting thereinto at a predetermined time and automatically a fur ther supply of air.

Another object of our invention is to provide means for automatically injecting air into the mixture of gasoline and air after it has come from the carbureter, thus decreasing the suction upon the carbureter and hence the amount of gasoline used.

Yet another object of our invention is to provide a means for accomplishing the above objects which may readily be installed on an internal combustion engine between the carbureter and the intake manifold.

Other objects and advantages of our invention will be apparent from the following specication, claim, and from the drawing in which:

Fig. 1 is a vertical section of an embodiment of my invention taken on the line l-I of Fig. 2;

Fig. 2 is a vertical section taken on the line 2-2 of Fig. 1; and

Fig. 3 is a plan View of the device illustrated in Figs. 1 and 2.

'Ihe device 5, which we Will hereafter refer to as a mixing device, lembodied in our invention, is adapted for insertion in position between a carbureter indicated at IIJ and an intake manifold indicated at aine twuvbemg ofany desiredand `suitable type andrproperly connected respectively to a source of fuel suppiy and to the intake ports *of vthe motor (not shown).

Referringnow particularly to Figs. l and 2*, the 5 mixing deviceindicated generally aticomprises a tubular unit t having upperandicwerfflanges Sc 'and Sd lcarryinrr'ears 6a and 5b respectively. Through the ears @a `bolts I may pass toconnect `thedevic`e `5`tothe lower end of the intakeV mani- 10 fold S. Through the lower ears '5h othrfbolts indicated at S may pass by which thedevice is connected to the upper end of a carbureter IIJ. Since the lower ends of the manifold and of the carbureter are normally of standard sizes, only a sufficient number of different types of my devices need be manufactured to meet requirements of those sizes since the flanges upon our mixing device are adapted to fit existing manifold and carbureter shapes and sizes.

The tubular unit 5 with its flanges serves as a separator and connector between the manifold and the carbureter, carries internally breaker mechanism, and externally adjacent its upper end an' automatic air injection valve. The breaker mechanism comprises a cross member I I, pref-` erably cast integrally with the unit 6, through f which passes a fixed shaft I2 in axial alignment with the tubular unit 6 upon which is mounted a casting I3 carrying upper and lower propeller blades Ifiand I5 respectively and a pair of substantialiy rectangular breaker blades I6 disposed radially cf the axis of the casting I3. The upper face of the cross member ii carries a lower part of a ball bearing raceway 2i! adapted to complementarily fit a raceway formed in the lower part of the castingv I3 in which ball bearings 2| are provided and the upper end of the shaft -I2 is threaded and carries thereon a nut 23 having part of a portion Zilof a raceway complementing another portion 25 thereof on the upper end of the casting I 3 for guiding and facilitating the movement of the casting I3 about the shaft I2. The nut 23 may be held imposition as by the lock nut 2s. 45

As is usual in internal combustion engines the mixture passing from the carbureter to the manifold is drawn upwardly by suction from the engine which suction varies directly as the speed of the engine. The current of gasoline and air from the carbureter to the manifold in this instance is utilized to cause the rotation of the casting I3 through the propellers I4 and I5. 'I'he breaker blades I6 thus are caused to rotate and thoroughly `vaporize and mix the gasoline and air coming from the carbureter.

In order to decrease the fuel consumption when the motor has been started while maintaining all the advantages of a rich mixture at the time the motor is being started we provide an automatic f vair injector 30 having a port 3| entering the unit in a plane above that of the breaker blade I6.

.The injector may comprise a hollow casing having a threaded end 32, fitting complementa] threads inthe casting 5, through which the port 3l extends and may be somewhat enlarged as at 33 and externally threaded as at 34 adjacent its opposite open end to carry a hollow cap 35. 'I'he cap 35 may have perforations 36 in the outer end thereof and an axially aligned opening 31 through which4 passes the stem 38 of a valve 39. The stem 38 is held in placein the opening 31, in such a position that the valve will close the perforations 36, by expansion spring 40 within the casing 30 and hollow cap 35. `'I'he cap 35 may be screwed r-toward or away from the casing 30 to increase or diminishthe effect of the spring 40-and thus control the moment at which the perforations 36 will be connected with the interior of the casing and hence with the mixing device since the suction from the intake manifold when itreaches a predetermined point will cause a partial vacuum within the hollow casing and the valve will be lmoved away from the perforationsby the external air pressure.

In operation this tension preferably should be so regulated that the openings will remain closed when the engine is starting or at idling speed but upon increase in such speed the suction should be great enough to overcome the force of the spring and allow the entrance of air. In auto# mobiles, this preferably should be at a driving speed of about 15 miles' per hour in high gear,

as it seems that it is at this rate that the device may be brought into `operation without decreasing the pickup of the car or effecting the rate ofl f acceleration.

Various modifications may be made in the above described .embodiment of the inventionv withoutr post; va nut engaging the end of said post remoteV from said cross bar; and.v ball bearings `between one end of saidcasting and said cross bar Vand V25 between the other end of said casting and: said nut, whereby said casting is rotativelyV supported at both ends on a post supported at one end only.

WILLIAM s. JOHN M. MIKKELSEN.

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