US2048175A - Vapor supplying device for motors - Google Patents

Description

July 21, 1936. E. L. BLooMBERG VAPOR SUPPLYING DEVICE FOR MOTORS Filed March 16, 1951 2 Sheets-Sheet l l NV EN TOR.

A TTOILVEYS.

July 21, 1936- E. l.. BLOOMBERG 2,048,175

VAPOR SUPPLYING DEVICE FOR MOTORS Filed March 16, 1931 2 Sheets-Sheet 2 wij/ fr f; T3. M

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ATTORNEYS.

Patented July 21, 1936 UNITEDy STATES PATENT OFFICE VAPOR SUPPLYING DEVICE FOB. MOTORS Edward L. Bloomberg, Cleveland Heights, Ohio Application March 16, 1931, Serial No. 523,135

6 Claims. (Cl. 12S-196) This invention, as indicated, relates to a vapor supplying device for motors. More particularly it comprises a vapor supplying device adapted to supply at a substantially constant rate to the combustion chambers of a gasoline engine a vapor, preferably formed of oil capable of withstanding high temperature, with a view, among other things, of eliminating sticky valves, preventing the formation of carbon, promoting quiet running of the motor, and retaining the cylinder compression.

Heretofore it has been proposed to supply oil or water vapor to combustion chambers of gasoline engines through the intake manifold directly or through the carburetor and manifold, with a view to improving the running conditions of the motor and preventing the formation of carbon, but such devices have not been provided with automatic means for making substantially uniform the quantity of vapor so supplied whether the motor was idling or operating at high speed.

The principal. object of the present invention is to provide an improved device for supplying vapor of the character indicated to the combustion chambers of a gasoline engine to improve the operative conditions thereof. Another object of the invention is to provide a pressure responsive control for the vapor supply to the combustion chambers, which will be proportioned so as to supply vapor in accordance with the needs of the engine at various rates of speed. Another object of the invention is to provide a device of simple construction and easily adjusted to various operating conditions, which will supply suitable vapor to the combustion chambers of a gasoline engine in predetermined amounts for various rates of speed. Other and further objects of the invention will appear in the course of the following description.

Figure 1 is a view in elevation and partly in section showing a vapor supplying device for a gasoline engine embodying the `principles of the invention;

Figure 2 is a fragmentary view of a modified form of device similar to that shown in Figure l;

Figure 3 is a view showing a further modied form of device in which a diierent type of 'iiuid outlet yis employed; and

Figure 4 is a modified form of construction of the general type shown in Figure 3.

As is shown in Figure 1 of the drawings, the preferred form of vapor supplying device I is preferably supported .by means of a bracket 2 secured to the front of the 'instrument panel I0 of an yautomobile. The bracket preferably is formed integrally with the top or cover section 3 of the device which is heldin air-tight relation withthebase section-4 which serves as a container for the liquid used informing the vapor. The base section is preferably in the form of a glass jar open at its upper end and held against the top or cover section by means of a stirrup or U- shaped clamping member 5 engaged through suitable ears (not shown) at the sides of the cover section, the ends of the member being screwthreaded to be engaged by thumb nuts 6.

The cap is preferably provided on 'its upper side with'upstanding bosses 1, 8, and enlargements ll, I2 on its under surface beneath said bosses. respectively. It is also provided with a thickened wall section I3 adjacent one corner, through which a screw-threaded aperture is provided to receive an adjusting screw I4 formed with a knurled head I5 and a lower section or shank I6 of reduced diameter, at the extreme end of which is engaged a disc I1 forming an abutment for a coiled spring I8 engaged about the reduced shank of said adjusting screw, above which spring is provided a bearing member inl the form of a ball I9 centrally perforated to engage about the 20 reduced shank of the adjusting screw. At the point where the main body portion of the adjusting screw meets the reduced shank thereof, the surface is preferably rounded to provide a fixed bearing member 2| for a purpose presently to be described. A lock nut 22 may be engaged on the screw-threaded body section of the adjusting screw in a position to engage against an inclined surface 23 on the cap member to prevent vibration changing any set adjustment of the screw.

The boss 1 on the upper surface of the cap or cover member is provided with a central recess 4and is of extended height providing a sight feed in the form of a lateral aperture 24 through which may be seen a section of a glass cylinder 25 held between packing elements 26, 21, under pressure of a coupling member 28 which may be locked in place by a special lock nut 29.l The vapor supply line 3| is connected by a suitable terminal element 32 with the coupling member 28 and by another coupling element 33 with the intake manifold 34 of a gas engine.

Centrally of the recess in the boss 1 a smal aperture is provided, on the under side of which is formed a conical seat 35 for engagement with the conical point ofja needle valve 36. The boss I I on the under side of the cover is provided with a recess 31 in alignment with the recess 38 in the boss 1 and a screw-threaded Vsleeve 39 engaged therewith provides a support for the shank 4I of the needle valve. The space intermediate the screw-threaded sleeve and the needle valve provides a reservoir for the vapor preliminary to its entering the vapor supply line to the intake manlfold. The sleeve 39y is provided with a countersunk recess 42 on its under surface adapted to receive a spring 43 engaged about the shank of the needle valve and bearing against a xed abutment 44 thereon adjacent its lower end. The

spacing of the abutment from the under face of the sleeve 39 is such as to prevent complete seating of the needle valve at any time. The recess in the enlargement II is provided with a lateral passageway 45 communicating with the reservoir, and said passageway opens into the container above the level of the liquid therein. A filler plug 46 provided with a tubular extension 41 which is of a length to closely approach the bottom of the container, is provided intermediate the bosses 1 and 8 to admit the outside air to the container closely adjacent the bottom so that air entering through a central air vent 48 in said plug mayv be discharged through the open end `of said extension, and agitate said liquid to produce an oilcarrying vapor in the upper portion of the chamber above the liquid level.

The boss I2 is provided with an enlarged recess 49 screw-threaded to receive a cup-shaped casing 58 having an air vent 5I within which is positioned a metal bellows 52 sealed at its marginal portions against the upper edge of the casing and held in air-tight relation thereto by means of a screw-threaded cap member 53. The cap member is preferably provided with an upstanding boss 54 having a central passageway 55 which communicates with a vacuum line 56 connected with the intake manifold of the gasoline engine. The upper end of the bellows is formed with a central inlet 58 in alinement with the passageway 55. A nipple 51, is engaged about the screwthreaded portion of the upstanding boss to secure such line to the cap member, and a suitable nipple 66 is provided to connect said vacuum line withA the intake manifold. 'I'he lower surface of the bellows is provided with a downwardly extending rod 6I which passes through the aperture 62 in the base of the casing and an aperture 63 in the boss I2 in alignment therewith. The lower end of said rod is screw-threaded to receive a nut 64 and a. lock nut 65 providing an abutment for the coiled spring 66 engaged over said rod and bearing against the under surface of the enlargement I2 about said aperture. 'I'he lower end of the rod is provided with a transverse aperture through which a pivot pin 61 is engaged, said pivot pin forming a support for a control lever 68 extending substantially horizontally across the container adjacent its upper portion. 'I'he control lever is preferably provided with a slot 10 adjacent its free end which permits the same to be engaged about the reduced shank on the adjusting screw intermediate the fixed bearing surface thereon and the spring pressed ball bearing heretofore described. The lever is formed with a slightly rounded bearing surface adjacent the point of its connection with the adjusting screw against which the lower end of the needle valve bears.

The device just described is adapted to maintain a substantially uniform vapor supply to the combustion chambers through the action of the metal bellows control mechanism. Thus, as the effective vacuum in the intake manifold of the engine grows less with the wider opening of the throttle and higher speed, the bellows will expand, shifting the endof the control lever down and lowering the needle valve and allowing more lubricating vapor or the like to be taken into the engine. As the vacuum becomes more effective again through the closing ofthe throttle, reverse action to that described will take place and instead of feeding more vapor, the needle valve will v close to reduce the amount being fed.

' engine acts through the passageway 56 to reduce the air pressure within'the bellows and permits the atmospheric pressure on the outside thereof to collapse the same when the low speed operation of the engine is in effect, a closed bellows 5 of the type shown in Figure 2 may be used, in which event the pivot point for the control lever is also moved to a new position.

In said modified form of construction shown in Figure 2, the casing 1I has no air vent and 10 the vacuum line 56 connects with the interior of the casing and reduces the air pressure about the bellows 12. The bellows is of the completely closed type, having a predetermined amount of air or gas within the same and is suitably sup- 15 ported by means of a spider 13 engaged between the cap member 53 and the cup shaped casing 1 I. 'I'he lower surface of the bellows is provided with a downwardly extending rod 14 which closely ilts the passageway 15 through the boss at the 20 lower end of the casing and extends through an opening 16 in alignment therewith. The lower end of the rod is provided with a coil spring and its abutment and la lock nut therefor, as well as a pivot pin for the control lever similar to that 25 shown in Figure 1. The control lever 11 is provided with an intermediate aperture 18 through which the reduced shank portion 19 of the adjusting screw 8| is engaged.

The adjusting screw, in place of being posi- 30 tioned within the top section of the container at one corner thereof, is set through the top wall 82 of the casing and extends vertically ldownward therefrom. A lock nut 83 permits the adjusting screw to be held at any predetermined position. 35 The free end of the control lever 84 abuts against the lower end of the needle valve which functions in exactly the same manner as the needle valve shown in Figure l. It is unnecessary to describe in detail the remaining elements of the structure, inasmuch as they correspond almost exactly in every respect to those shown in Figure 1.

'I'he modified form of construction shown in Figure 3 of the drawings discloses an apparatus for delivering a small stream of oil or other liquid designed to prevent carbon formation, to the intake passageway of a gas engine. The parts of the apparatus in most of the instances shown are identical with those shown in Figure l and like reference characters have been applied thereto. The features of the construction differing from the devices heretofore described will now be set forth.

The container I is supported upon a bracket 9| secured to the front of the instrument panel 92 of 55 an automobile. The bracket preferably has on its upper side a plurality of spring fingers 93,

94, within which the base section 4 for the liquid used is h eld. The container may be firmly held within the clips by means of a band 95 preferably of spring material engaging about the spring fingers. The container is preferably in the form of a glass jar open at its upper end and having set thereover a cap or cover member which serves as a. closure for the container and as a support for the various elements of the device.

'I'he cap member is preferably secured to the upper portion of the container in air-tight relation by means of cement or any other suitable sealing means (not shown).

The needle valve, control lever, and bellows and associated parts are all disposed as shown in Figure l, but in place of admitting air through the ller plug and its ex nsion, to agitate and vaporize the liquid wit \n the container, the device 75 has a ller plug 96 with an air vent but without an extension. The lateral passageway to the reservoir and the line to the intake manifold is provided with a tubular extension 91 through which liquid is drawn and carried toward the point of discharge into the intake manifold where it meets twine ascending fuel mixture and mingles there- The modified construction shown in Figure 4 incorporates the construction shown in Figure 2 and heretofore described in detail, but in place of admitting air to the ller plug and its extension to agitate and vaporize the liquid within the container, the device has a ller plug with an air vent, but without an extension therefrom to the lower portion of the liquid. The lateral passageway to the reservoir and the line to the intake manifold is provided with a tubular extension through which liquid is drawn and carried toward the point of discharge into the intake manifold where it meets the ascending fuel and mixture and mingles therewith. This construction differs from that shown in Figure 3 merely in that it uses the closed type of bellows and has a dierent position of the fulcrum for the control lever in which latter respects it, as heretofore stated, resembles the construction shown in Figure 2.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the' structure herein disclosed, provided the means Other modes of applying the principle of my equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention:

l. An apparatus of the character set forth, having in combination a container comprising a liquid receptacle and a closure therefor provided with an air vent, a iuid delivery passageway communicating with said container and operatively connected therewith at all times through a minimum opening with the intake passageway of a gasoline engine, and means wholly independent of said first-named passageway responsive to speed variations in said engine associated .with the intake passageway of said engine for increasing said opening for the admission of fluid to said first-named passageway, said means being wholly separate from said uid delivery passageway.

2. An apparatus of the character set forth, having in combination a container comprising a liquid receptacle and a, closure therefor provided with an air vent, a fluid delivery passageway communicating with said container and operatively connected therewith at all times through a minimum opening with the intake passageway of a gasoline engine, and pressure responsive means wholly independent of said first-named passageway associated with the intake passageway of a gasoline engine and operable proportionally to the speed of said engine for increasing said opening for admitting a greater amount of uid to said first-named passageway at high speed than at idling speed of said engine, said means being wholly separate from said fluid delivery passageway.

3. An apparatus of the character set forth. having in combination a container comprising a liquid receptacle and a closure therefor provided with an air vent member extending downwardly and'opening adjacent the bottom of said liquid receptacle, a fluid delivery passageway communicating with the vapor space above the liquid level in the upper part of said container and connected with the intake passageway of a gasoline engine, a valve associated with said passageway for controlling the amount of uid admitted thereto, means to prevent complete seat- 5 v ing of said valve at any time, and pressure responsive means wholly independent of said firstnamed passageway connected with said intake passageway for controlling the degree of opening of said valve, said means being wholly separate from said uid delivery passageway.

4. An apparatus of the character set forth, having in combination a container comprising a liquid receptacle and a closure therefor, an air inlet passageway extending into the liquid within said container and adapted to agtate and partially vaporize said liquid, a uid delivery passageway communicating at one-end with the space above the liquid level in said container and at the other end with the intake passageway 20 of 'agasoline engine, a valve associated with said passageway for controlling the amount of vapor formed in the space above said liquid level admitted thereto, means to prevent complete seating of said valve at any time, and pressure 25 responsive means wholly independent of said first-named passageway connected with said intake passageway for'controlling said valve, said means being wholly separate from said4 fluid eliv assa eway. d 5. ellinripappaatus of the character described, having in combination a container adapted to receive a fluid suitable for the prevention of carbon formation in gasoline motors, a cover for said uid container having an air vent and providing 35 an outlet fluid delivery passageway from the interior of said container, means connecting said passageway with the intake passageway of a gasoline engine, a valve associated with said outlet passageway of said container, means to prevent complete seating of said valve at any time, a control lever associated with said container and operatively related to said valve, adjustable means for pivotally supporting said control lever, and pressure responsive means associated with said control lever for controlling the position of said valve, said pressure responsive means having means wholly independent of said vrstnamed passageway connecting the same with the inlet passageway of said gasoline engine.

6. An apparatus of the character described, having in combination a container adapted to receive a fluid suitable for the prevention of carbon formation in gasoline motors, a cover for said uid container having an air vent and providing an outlet iiuid delivery passageway from the interior of said container, means connecting said passageway with the intake passageway of a gasoline engine, a valve associated with said outlet passageway of said container, a control lever 60 associated with said container and operatively related to said valve. adjustable means for pivotally supporting said control lever, and pressure responsive means associated with said control lever for controlling the position of said valve, said pressure responsive means comprising a sealed bellows having a predetermined internal uid pressure and an independent passageway to the intake manifold for providing under operative conditions reduced pressure exteriorly of said bellows, said means being wholly separa from said fluid delivery passageway.

EDWARD L. BLOOMBERG.

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