US1132941A

US1132941A - Liquid-elevating device for automobile-engines.

Info

Publication number: US1132941A
Application number: US84741814A
Authority: US
Inventors: Webb Jay
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-06-26
Filing date: 1914-06-26
Publication date: 1915-03-23
Anticipated expiration: 1932-03-23

Description

W. JAY.

LIQUID ELEVATING DEVICE FOR AUTOMOBILE ENGINES.

APPLICATION FILED JUNE 26, 1914.

` Patented Mar, 23, 1915.

y MMMM UNITED sTATEs `PATENT OFFICE.

WEBB JAY, 0F CHICAGO, ILLINOIS.

LIQUID-ELEVATING DEVICE F011, AUTOMOBILE-ENGINES.

Application led J' une 26` 1914. Serial N o. 847,418.

T 0 aZZ whom it may :concern Be it known that 1I. `funn JAY, a citizen of the United Ftfites, refdinfj at Chicago, in the county of Cook .ind State of Illinois, have invented new and useful Improvements in Liqiiid-lllevating Devicesl for A utomobile- Engines, of which the following is a specification, reference being had to the accompanying drawings. forming a part thereof.

The purpose of this invention is to provide a convenient and easily accommodated means for elevating the liquid fuel or other liquid supply for an internal combustion engine of an automobile from a storage tank in the usual low position, to a position from which it may be fed by gravity to the carburetor or other part requiring it.

It consists in the elements and features of construction shown and described as indicated in the claims.

.In the drawings z--Figure 1 is a side elevation of a structure embodying this invention, shown in association with an automobile engine or parts thereof. Fig. is a section at the line, on F ig. 1. Fig. 3 is a partly sectional elev ation ofthe supplemental liquid fuel receptacle, section being made in a vertical plane cutting the various connections. f

In the structure shown in the drawings, 1 represents a receptacle for liquid fuel, ylocated at a position from which the fuel may be fed by gravity to a carbureter, indicated in dotted lines at 2.

3 is a pumping device which,-as illustrated, comprises afpiston, 4,'playing in a cylinder, 5, the cylinder' being open at one end and the piston being connected at that end for its operation by means of the arm, 9, of an eccentric strap, 10, of an eccentric, 11, mounted upon a rotating shaft, 1Q, which may be the .cam shaft of an engine or a countershaft driven by any convenient connection with any rotating-shaft of the engine structure, or associated mechanisms, in substantially continuous operation. The pump chamber is connected to a second pipe line, 1,3, containing two'check valves, 14 and 15, which both open for flow in the same direction through the pipe line, and are adapted to be closed by low in the opposite direction. As illustrated, the two valves are both mounted in the head, 16, of the cylinder. This, however, is merely a matter of convenience in construction. It will be observed that as to function, the pump is located between the Specicatian of Letters Patent.

Patented Mar. 23, 1915.

two check valves.v The pipe line, 13, leads from the upper part of the receptacle, 1. and the valves open for flow away fromisaid re.- ceptacle. il pipe line, 18, leads from the lower part of a low level storage tank, 17,'

and dischar esginto the. elevated receptacle;A

1. Said receptacle, 1, is closed at the top so that a partial vacuum may be produced above the liquid therein. At each rotation of the shaft, 1'2, the withdrawing stroke of the piston produces a partial vacuum tend` ing to draw air from the receptacle, 1, past the check valve, 15, producing a partial vacuum in said receptacle, 1,v above the liquid level therein, and the opposite stroke of the piston forces the air out past the check valve,

14. Tlieresult of continuous operation is therefore to produce a sufficient partial vacuum in the receptacle, 1, above the liquid level therein, to cause the fuel to be lifted by atmospheric pressure from the low level tank, 17, through the pipe, 18, to the receptacle, 1, to keep the same supplied for feeding by gravity to the carburetor, or wherever else the oil is required for the engine.

In the absence of means to prevent it` it will be evident `that the receptacle, 1, might be over-filled by continuous operation of the diaphragm pumpingidevice, in which case the liquid elevated into that receptacle would flow back into the pump chamber and out through the checkvalve, 14. To

. prevent such over-flowing or over-filling of the receptacle, 1, yprovision is made for interrupting the partial vacuum by'means of which the oil is lifted linto said receptacle when a pre-determined high level of liquid is attained therein. This means consists in providing av vent "pipe, 20, which terminates in an air-inlet, 21, at a position conveniently near to the upper end of the receptacle, 1, said vent pipe leading in any manner to thepump chamber, which is most conveniently accomplished by making it a branch of the pipe line, 13, from the receptacle to the check valve, 15. A valve, 22,' normally closes the air inlet, 21, but is oper.- ated for opening against the suction by connection With a. rock shaft, Q3, journaled in the receptacle, 1, and protruding therefrom to carry-a lever arm, 24, upon which the valve, Q2, is mounted. Inside the receptacle, 1, a float, 25, is carried on a lever arm, 26, extending from the same rock shaft, and which when not upheld by the liquid in the receptacle, operates in addition to the suction as a weight to hold the valve, 22, seated,

` but when lifted by the rise of the liquid to a predetermined high levelin the receptacle, rocks the shaft and opens the valve,22'. The same expedient, namely, relieving the partial vacuum at intervals, and Whenever a pre-determined high level of liquid is obtained, is necessary in order to permit the liquid lifted. by the partial vacuum into the receptacle, 1, to flow out by gravity to the parts to be supplied. An adequate difference` between the high liquid level at which the valve, 22, is opened by the float, and the low level at which it is closed by the'float operating as a weight, is obtained by making the area of the port closed by the yvalve large enough to cause the suction to hold the valve seated iintilthe float is submerged as much beyond the normal depth as the desired difference between the high and lovv levels, so that when the upward pressure lon the float is enough to pull the valve from its seat. the float will rise and carry up the valve a distance which will measure the amount which the liquid level mustfall before the valve again seats;`and when this happens, the suction operating at the next stroke of the pump device holds it seated'.

Vhen this device is used for supplying oil to the carburetor, the receptacle, 1, is connected with the float chamber, 27, which is suitably connected with the receptacle, 1, and with the atmosphere for maintaining a liquid level in the carbureter adapted t0 the needs of the latter but which forms no part of this invention and need not be further described.

.The means herein shown for lifting from the low level tank to a high level receptacle may obviously be employed for so handling vany liquid required by the engine. as, for

example, the lubricating oil; and I do not limit myself to lthe use of these devices for supplying 'the carbureter with fuel oil, though some of the specific features are especially applicable to that use and are specifically claimed for such use. Also it will be obvious that the described action of the pumping device is not dependent upon the baclcandforth moving member being a piston, though a piston pump is preferred to other equally wel] known forms of pump when the space available is adapted to accommodate a proper stroke of the piston.

1. ln combination with an engine requiring oil, a main oil supply tank at a low level; a receptacle located at a level from which the oil required by the engine may be supplied-thereto by gravity; a pipe line connecting the main supply tank with the elevated receptacle, said receptacle being ynormally closed so that a partial vacuum may be produced therein; a second pipe line leading from the upper part ofthe receptacle; a suction pump device having its chamber intake communicating with said second pipe line; said second pipe line having an air inlet in addition to itscommunication with the receptacle; a normally closed valve for controlling entrance of air through said additional air inlet; a float in the receptacle adapted to be operated by the liquid contents thereof, and connections from said fioat for opening said last-mentioned valve at a predetermined high level of the liquid in the receptacle.

In combination with an engine requiring oil, a main oil supply tank at a low level; a receptacle located at a level from which the' oil required. by the engine may be supplied thereto by gravity; a pipe line connecting the main supply tank with the elevated receptacle. said receptacle being normally closed so that a partial vacuum may be produced therein; a second pipe yline leading from the upper part of the receptacle; two check valves in said second pipe lineyopeningfer flow away from the receptacle and adapted to be closed by flow in the opposite direction; a pump chamber connected with the second pipe line intermediate the check valves, a back-and-forth moving member closing said chamber at one side; eXteriorly-conneced engine-operated' means for operating said fmember, said sec-` ond pipe line having an air inlet in addition to its connection with thereceptacle; a normally closed valve for controlling entrance of airjthrough said additional inlet;

a ioat in the receptacle adapted to be operated by the liquid contents thereof, and connections fromsaid float for opening said last mentioned valve at a predetermined high level of the liquid in the receptacle.

y 3. In combination with an engine requiring oil, a main oil supply tank at a low level, a receptacle located at a level from which the oil required by the enginemay be supplied thereto by gravity; a pipe line connecting the main supply tank with the elev'ated receptacle. said receptacle being normally closed so that a partial vacuum may be produced therein; a pipe line leading from the upper part of the receptacle; two cheekvalves in said pipe line opening for flow away from the receptacle and adapted to be closed by flow in the opposite direction;`a pump chamber connected with the pipe line intermediate the check valves; a back-and-forth movingmember closing said chamber at one side; eXteriorly-connected engine-operated means for operating said member, said pipe line having an air inlet in addition to its communication with the receptacle; a normally closed valve for controlling entrance of air through said additional inlet, positioned and adapted for heing held on its seat by suction at saidinlet; a device buoyed by .the liquid in the receptacle, and connections therefrom `for forcing sald valve oii' its seat against the suction y upon a predetermined submergence ofl said device.

4. In combination vvith an engine requir` ing oil, a main oil supply tank at a low level, a receptacle located at a` level from which the oil required by the engine may be sup-` plied thereto by gravity; a pipe line connecting the mai-n supply tank with the elevated receptacle, said `receptacle beingnormally closed so that a partial vacuum may be produced therein; 'a seeondvpipe line leading fromthe upperpart ofthe receptacle; two

check valves in said second pipe line open-4 ing for How away from the receptacle and adapted to .be closed by' How in the opposite direction; ya pump chamber connected with said second pipe line intermediate the check valves; a back-and-forth moving member closing said chamberat one side; ex-` teriorly-connected engine-operated means for; operating said member, said second pipe line having an air inlet and a valve for controlling entrance thereto positioned in the vicinity of the elevated receptacle and adapted. to be held on its seat by the suction through said inlet; a device buoyed by the liquid in the receptacle,` and connections therefrom for forcing said valve ofi' its seat against the suction upon va predetermined .y submergence of said device.

5. In combination with an engine requir-y `ing oil, a main `oil supply tank at a low level, a Vreceptacle located at a level `:from which the oil required bythe engine may be supplied thereto bygravity; a pipe linel Vconnecting the main supply tank with the elevated receptacle', said receptacle being f .normallyy closed so that a partial vacuum maybe produced therein; a second pipe line leading from the upper part of the receptacle; two check valves in said secondv pipe line opening for flow away from the recep\ tacle and adapted to be closed,` by flow in the opposite direction; a` pump chamber connected .withjthe second pipe line interme-A diatev the check valves; a back-and-forth moving'member closing said chamber at one side; eXteriorly-connected engine-operatedmeans for operating said member, said second pipe line having a branch which has an air inlet; a valve positioned in the vicinity of said receptacle adapted to be seated by suction for controlling said air inlet;

a device buoyed by the-liquid in the receptacle, and connections. therefrom for foroing said valve off its seat against the'suction upon a predetermined submergence of said device. i i

In testimony whereof, I'have hereunto set my hand, at Chicago, Illinois, this 24th day