US1852867A

US1852867A - Automatic suction bell and current control

Info

Publication number: US1852867A
Application number: US511198A
Authority: US
Inventors: Raymond L White
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-01-26
Filing date: 1931-01-26
Publication date: 1932-04-05
Anticipated expiration: 1949-04-05

Description

A ril 5, 1932. 1,852,867

AUTOMATIC SUCTION BELL AND CURRENT CONTROL R. L. WHITE Filed Jan. 25, 1931 INVENTOR. Far 101w A. W/f/TE.

XM M

ATTORNEYJ.

chamber during the circulation of theoil, a crimp connection and is herein shown Patented"A pr. 5,' 1932. I I i 1 UNITED sir-Ares PATENT: oF icEi RAYMOND L. WHITE, for INDIANAPOLIS, INDIANA AUTOMATIC sucTIoiv BELL AND ounnnivr common Applicationflled January 26,1931. Serial No. 511,193.

, This inventionrelates to an automatic suc- Fig. 2 is a similar view of a portion of a tion bell and current control device. modified form of the invention shown: in

This application is. similar to my Fig. 1.'

copending application, similarly entitled, Fig. 3 is asectional view showingthe as- 5 filed January 20, 1 930, and bearing Serial sociation of several parts preliminary to se- No. 422,107, now Patent No. 1,790,563,,dated curing the same together. January 27 ,1931. Fig.4 illustrates the parts-when secured The chief object of this invention is'to proto ether. v o o Y vide a buoyant mechanism which, in addiin the drawings, 10 indicates the bottom of tionto accomplishing substantially all that a reservoir,such as the oil pan of an inter; 0 the before mentioned application structure acnal combustion engine, such engine including complishes, has the advantage of remaining a pump which is connected to the line 11, in

relatively inactive in regard tolow velocity turn connected to the elbow 12, and de end-a intake but which for large quantity displaceiIig therefrom, is the inlet pipe 13. nletment becomes active for securing predeter- I pipe'13 has a pair of upper holes, or inlet mined directional flow of the lubricant. passages 14', and a pair of lower holes, or

The chief feature of the invention is the inlet passages 15. The size of these holes automatic clearing of the screen by lateral may be that required'or desired and the upsurging during flOW intake, other portions per and lower holes mayvary in size.

of the device removing the suspended mat- A float indicatedby the numeral 16 has a ter fromthe oil prior to screen engagement dome-shaped outer bellsurface 17 with an during large quantity displacement. outer, lower and largest periphery '18. The

Another feature of the present invention inner wall of the float is formed by the in-' consists in the bowlshape of the screen, Wardly and upwardly tapered conical POT-1' whereby the central portion of the same tion 19, which is connected at the upper end? serves as a bumper or stop to limit lowering to the upper end of the dome-shaped: bell movement of the hell if and when ice forms portion 17 at 21 by a peripheral groove aror collects above the current control plate. rangement. The bell 17 as at '22, forms a Another'feature of the present invention small groove adjacent theconnection and consists in the dished or depressed shape of saidgroove forms a gutter adjacent the upl the current control plate so that the plate per guide ringformed by the connection willpermit the depressed screen to nest there- 21. Lubricant. trapped in the gutter will in and allow peripheral stops to become efseal whatever minute air space there is bei fective. t "tween the upper guide 21 and the inlet Another feature of the invention consists pipe 13. p in the gutter formationv adjacent the upper The lower wall of the float is'indicated by guide for retaining a sufiic'ient quantity of the numeral 23 and it is suitablyconnected liquid'fo'r air sealing the upper end of the bell to the outer periphery of the bell as at 18 by thereby insuring certainty of operationwith formed integral with the conical inner wall out undue closeness of fit between the guide 19. In Fig. 1 the bottomwall 23 is shown; and its support which would impair the operdownwardly enlarged as at 24 to form bearation of the device and particularly its reing. supports against which bears a wire sponsiveness to varying conditions. cloth screen 25 of the desired mesh. The The full nature of the invention will be screen'25 is secured to the outer periphery ofunderstood from the accompanying drawings the bell at the j oint18 by any suitable means. and the following description and claims The inner periphery of the screen supports a In the drawings, Fig; 1 is acentral, seclower guide ring. 26 which is slidably mount-- tional viewof oneiembodiment of the invened upon the inlet pipe 13.

- Y The screen is dished downwardly towardtion.

the lower guide bearing and the screen moves with the bell and float, said bell and float being combined in the present embodiment. Suitably secured to the lower end of the inlet pipe and herein forming a closure therefor, is the current control plate 27. This is dished upwardly so that its outer periphery 28 is at the highest elevation and the periphery is at a greater distance from the pipe than the periphery 18 of the bell, so that the plate overlaps the bell. The plate at its periphery and at a plurality of spaced portions is struck upwardly, as at 29, to form stops for engagement by the periphery 18 of the bell so that complete closure of the annular passage between the plate and the bell is prevented.

In the present form of the invention, the bottom of the reservoir 10 is shown provided with a threaded fixture 30 which is closed by a drain plug 31, whereby the sediment may be readily removed from the bottom of the reservoir.

In Fig. 2, a modified form of the invention is illustrated and in this form of the invention, similar parts are indicated by the numerals of the one-hundred series. The abutment 124, similar to the abutment 24, not only supports the screen but in this instance supports the inner end of the screen and is spot-welded or otherwise secured to the annular lower guide 126 carried by the inner endof the screen 125. Otherwise, the conitiruction may be. the same as that shown in 11 Figs. 3- and 4, there is illustrated the formation of the inlet pipe closure and the anchorage of the current control plate. The plate is indicated by the numeral 27 and the pipe is indicated by the numeral 13. Lower end of the pipe 13 is beveled inwardly as at 40 and the plate 27 includes a recessed portion having the side wall 41 and the bottom 42 substantially parallel to the plate portion 27. The diameter of the well or recess 41 is just sufiicient to receive the end of the pipe 13. A perforated die or anvil member having the opening 51 therein and the face 52, is adapted to receive the pipe 13 and permit the same to project through the opening 51 and below the face 52 of the anvil 50. Plate 27 rests upon plate 52 and with the pipe held against longitudinal displacement in the opening, a partially spherical member 53 is coaxially forced upwardly toward the anvil and in so doing forces the side walls 41 outwardly at right angles to plate 27, and moves the entire bottom portion 42 upwardly and into the inwardly tapered end 40 of the inlet pipe. At the same time said tapered side wall of the pipe at the end is flared outwardly as shown clearly in Fig. 4, thereby mechanically anchoring and sealing the control plate 27 to the low end of the pipe 13nd forming a closure for the latter.

The float in the present disclosure should be of sufficient buoyancy to remain at its upper level when the pump connected to line 11 is displacing at a low rate. Its relation to the lower inlet holes is such that the lines of liquid flow are substantially parallel to the lower surface of the float or the outer periphery 18 or lower edge of the bell. These parallel currents of liquid under these conditions do not have sufficient influence on the bell to make the same descend. However, when the lower inlet passages 15 are running full or nearly approach complete capacity, the suction applied through the upper passages or openings '14 also become active and the increased displacement influences the bell and causes its downward movement in 0 )position to the floating effect or tendency of the bell to remain elevated by reason of the float or other equivalent means having an equal effect.

Such an equivalent means may constitute a spring or a counterweight lever connection to the bell. Under the aforesaid load displacement conditions, the bell, therefore, remains in its upper position but descends to its lower position when the liquid displacement approaches or is increased beyond the capacity of the lower inlet passages 15. The timing for the descent of the bell may be governed in direct relation to the displacement rate by variation of the location or capacity of the lower inlet passages and the size of the upper inlet passages.

The purpose of this controlled action of the bells descent is to allow for parallel surging action of the liquid being handled at the low displacements, so that such surging will wash the screen clear of foreign matter. Low displacement is obtained at speeds below thirty miles per hour but the average engine below thirty miles per hour has an R. P. M. of one thousand and the oil pump has an R. P. M. of five hundred. While traveling at this speed, and the same is generally utilized for city traffic, it has been found that ninetyfive percent of the brake applications occur in said city traffic, so that when the brakes are applied, the oil in the reservoir surges forward and then returns, etc. It is this surging at the low speeds which clears or cleans the screen. This act-ion, therefore, constitutes the automatic or self-cleaning effect and permits the employment of a minimum screen area for operation, and allows warmer oil nearer the top to be circulated at the lower speeds of the engine.

Surging at high speeds will secure the same effect but as a general rule, there is sufficient surging by reason of variation in the speed of a vehicle at speeds under twenty-five or thirty miles per hour, so that the screen will be maintained clean. Therefore, the worst operating condition, that is cleaning of the screen at low speeds, is provided with the aforesaid construction.

To insure substantially as frictionless operation as possible, the gutter 22is PI'OVlCl'.

surface and the pipe is minimized. The term guide and inlet pipe.

substantially lined is intended to include as wide a bearing surface between the inlet pipe and guide as is practical without introducing the possibility of sticking the bell due to possible sediment accumulation between the The shape of the bell is such that oil circulation tends to lower the bell and the floatingaction becomes less eifective when the reservoir is full and the rate ofcirculation is relatively large. 7

When water is present in the oil and the same has frozen to ice, the dishedv form .of screen, since it is reinforced by the abutment 24 01'124 respectively, will support the bell above the level of the ice so that there is. an annular channel above the ice and below the periphery 18 and the oil stream above the ice can pass to the inlets and therefore danger of ice locking is eliminated. Irrespective of the position of the bell, the oil which passes to the inlets must pass through the screen. The greater proportion of the sediment, grit and the like, and the water, etc, other than oil will gradually settle to the bottom of the reservoir and below the plate and thus be kept out of circulation. since scouring of the reservoir bottom is prevented. The streams supplied to the inlet passages are all horizontal streams and generally above the lower most levelof the oil so that the edge 28 of the plate forms a division plate for directing downwardly the heavier and grittier portions of the oil stream and permits the upper, lighter and cleaner portions of the 011 stream to be recirculated.

', Likewise, this plate, since it projects beyond speeds, until the screen engages the abutments the periphery 18, does prevent scouring action that has heretofore been associated with the standard pump intakes now employed in in ternal combustion engines.

In warmer weather particularly and when traveling at high speeds, the present invention permits the bell to descend at high vehicle speeds, which means high pump and engine 29 upon the plate 27 and thus the annular intake opening beneath or adjacent the edge of the bell is at the lower portion of the major portion of the oil in the reservoir, so that *the oil is taken from the lower and cooler portion thereof, thereby insuring better temperature control in the lubrication of the en.- gine. T

The invention claimed is 1. Anautomatic,suction actuated bell and current control device for suction pump inlets, in combination with a reservoir bottom, the inlets being positioned at different elevations above the reservoir bottom, of a suctionresponsive bell, a vertical pipe provided with the inlets and slidably supporting said bell, means normally constraining said bell ing incoming liquid stream to the inlets and directing substantially horizontally the'upe per portionofsaid divided stream for the purposedescribed.

2. A device as defined by claim 1, character;- ized by the addition of a dished orbowl shaped screen terminating in a peripheral to anelevated position, said bell being, ar-' guide slidable on the pipeandinterposed at all times in the intake liquid flow to the inlets.

3. A device as definedby claim 1, characterized by the current control plate being fixedly mounted inflpredetermined relation to thebottom of the reservoir. I

fixedly-mounted in predetermined relation to the bottom of the reservoir, and upon the inlet-pipe.

5. A'de'vice as defined by claim 1, characterized by the current control late being fixedly mounted in predetermine relation to the bottom of the reservoir. and upon the inlet pipe, and by a lateral enlargement thereof.

6. A device as defined by claim 1, characterized by the inlet pipe extending downwardly and terminating in spaced relation: to the bottom of the reservoir and the current control plate being associatedwith the end of said inlet pipe for closingthe same. and supported thereby and. in spaced relation to the bottom of the reservoir.

7. A device'as defined by claim 1, characterized by the bell including adjacent its upper inner portion a peripheral guidefor slid'ably supporting the hell on the 'inlet pipe and the bell portion immediately adj acent said guide being arranged in gutter formation for trapping liquid for air sealing the slidable contact of the bell'upon the pipe.

8. A device as defined byclaim 1, charactrapping liquid for air sealing the slidable contact of the bell upon the pipe, said means for normally constraining the bell including a float construction, the latter having a downwardly and outwardly flared inner wall forming a tapering chamber surrounding the inlet pipe and closed at its upper end by said gutter protected guide.

9. A device as defined by claim 1, characterized by the bell including adjacent its upper inner portion a peripheral guide for slidably supporting the bell on the inlet pipe and the bell portion immediately adjacent said guide being arranged in gutter formation for trapping liquid for air sealing the slidable contact of the bell upon the pipe, said means for normally constraining the bell including a float construction, the latter ha ving a downwardly and outwardly flared inher Wall forming a tapering chamber surrounding the inlet pipe and closed at its upper end by said gutter protected guide, and by the addition of means integral with the current control plate and projecting upwardly therefrom for engagement by the bell construction for limiting the lowest por tion of the bell. to a predetermined spacing between the outer periphery of the bell and the overlapping portion of the plate.

10. A device as defined by claim 1, characterized by the bell including adjacent its upper inner portion a peripheral guide for slidably supporting the bell on the inlet pipe and the bell portion immediately adjacent said guide being arranged in gutter formation for trapping liquid for air sealing the slidable contact of the bell upon the pipe, said means for normally constraining the bell including a float construction, the latter having a downwardly and outwardly flared inner wall form ng a tapering chamber surrounding the inlet pipe and closed at its upper end by said gutter protected guide, and by the addition of means integral with the current control plate and projecting upwardly therefrom for engagement by the bell construct-ion for limiting the lowest portion of the bell to a predetermined spacing between the outer periphery of the bell and the overlapping portion of the plate, and by the further add tion of a screen, the same extending inwardly toward the inlet pipe and terminating in a peripheral guide .slidably mounted upon the inlet pipe, said screen be ing dished downwardly and arranged for ice engagement for limiting lowering movement of the bell and preventing ice locking.

11. In an automatic suction bell construction for internal combustion engines including a lubricant circulating pump and reservoir, the combination of an intake pipe. :1 bell slidably mounted thereon, and normally constrained toward elevated position and movable downwardly by the suct on in opposition to such constraint, a control plate therebeneath and toward which the bell moves in pump operation and overlapping the outer periphery of the bell, and a pair of spaced lined guides for frictionless aligned mounting of the bell upon the pipe.

12. A device as defined by claim 11, characterized by an upwardly and inwardly inclined tubular portion carried by the bell and interposed between the outer surface of the bell and the pipe for regulating the descent of the bell when subjected to suction.

13. A device as defined by claim 1, characterized by an upwardly and inwardly inclined tubular portion carried by the bell and interposed between the outer surface of the bell and the pipe for regulating the descent of the bell when subjected to suction.

14. A device as defined by claim 1, characterized by the means for normally constraining the bell toward an elevated position, comprising a float included in said bell construction.

In witness whereof, I have hereunto affixed my signature.

RAYMOND L. WHITE.