US2155368A - Liquid dividing feed mechanism - Google Patents

Description

April 18,1939. A. VON WANGENHEIM sf AL 2,155,368

LIQUID DIVIDING FEED MECHANISM Filed May 14, 1934 4 Sheets-Sheet 4 ATTORNEYS April 18, 1939. A. yoN WANGENHEIM ET AL 2,155,368

LIQUID DIVIDING FEED MECHANISM ATTORNEYS April 18, 1939. A. VON WANGENHEIM' El AL 2155,7363

' I LIQUID DIVIDING FEED MECHANISM Filed May 14, 1934 4 Shets-Sheet 5 7 mvENToR'g fl do 2/ 757? M72 tniez'm W22 .lzer' 5.1471 022 ATTORNEYS A. VON WANGENHEIM ET AL April 1 1939.

LIQUID mvmme FEED mncmmsm 4 Sheets-Sheet 4 Filed May 14, 1934.

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ATTORNEYS j-Patonted A... 15,1939

' rlIQUm nrvmnvc FEED MECHANISM Adolf v on Wangenheim and Walter S. Landon. Detroit, Mich, assignors to Detroit Lubricator Company, Detroit, Micln, a corporation of Michigan Application May 14, 1934. Serial No. 725,684 2 Claims. (01. 184-1) The invention relates to liquid feeding mechanisms. more particularly designed for use in connection with lubricating systems and it is the obiect of the invention to accurately divide the liq- 3 uid which is being fed into a plurality of accurately measured portions and to deliver the same to separate conduits. To thisend the invention;

consists in the construction as hereinafter se forth. a In the drawings:

Fig. 1 is a plan view ofthe device;

Fig.2 is a side elevation thereof; Fig. 3 is an end elevation; Fig. 4 is a cross section on line 44 of Fig. 1

viewed in the direction of the arrow;

Fig 5 is a similar view viewed in the opposite direction as indicated by the arrows 5--5, Fig. 1;

Flgs. 6, 7, 8 and 9 are diagrammatic views illus-' trating the successive operations in measuring, dividing and feeding the liquid to the separate delivery conduits;

Figs. 10, 11, 12, 13, 14 and 15 are elevations re spectively of the six sides of the casing;

Figs. 16, 17, 1a, 19, 20,21, 22 and 23 are cross I 35 sections taken on lines of corresponding number in theelevationaFigs. 10 to 15. v

Fig. 24 is a diagram illustrating a plurality of dividing units used in combination.

Generally described, our improvement comprises a casing preferably formed of an integral casting which is provided with an inlet for the liquid to be divided and a plurality of outlets for the divided portions of the liquid. Intermediate said inlet and outlets the casing is further provided with a plurality of cylindrical recesses, each containing a reciprocatory plunger which functions as a double-headed'piston and a valve. The casing is further provided with ports. and passages so arranged that in one position of each plunger 40 the valve portion thereof will connect the cylinder for another plunger with one end to the inlet and its opposite end to one of the outlets. This will result in the movement of the plunger in the latter cylinder by pressure or the incoming fluid, which 5 in turn will'cause the expulsion of fluid from the opposite end of Y the cylinder through the connected outlet. The shifting of this last plunger will cause the valve portion thereof to change the connections to the'cylinder for the first mentioned plunger so that this in turn will be actuated, fluid being admitted at one end of the cylinder and expelled from its opposite end through another outlet. As each plunger is a double acting piston, it is evident that the fluid can be divided into portions which are twice the number of the caps I. J andH,

plungers and by increasing the number of plungers, any desired number of divisions may be made.

In detail, A is the casing formed of the integral casting having' on one end thereof the internally threaded hollow boss B for connection with the 5 inlet conduit C and also having upon opposite sides. the internally threaded hollow bosses D, D,

E, E for connection with the outlet conduits F, F,

' I", F G and H are cylindrical bores extending through the central portion of the casing interu, mediate the inlet and outlet connections, the opposite ends of which are closed by threaded plug are double-headed piston plungers slidably fitting the bores G and H, these being 1 of a length less than the length of the cylinder l5 between opposite end caps I so as to produce a predetermined displacement by the reciprocation thereof. Between the opposite ends of each of these plungers are grooves J', J, J and K, K, K which in certain positions of the plungers will 20 register with cooperating ports in the walls of the cylinders. These portsv and connecting passages are preferably formed by intersecting bores, some of which enter from the outer surface of the casing and have their outer ends closed by plugs and '25 some of which enter through the hollow bosses D, D, E, E. Thus as shown in dotted lines, Fig. 1, and also in the various cross sections thereof, there are a series of bores L extending radially at difl'erent angles through each of'the cylinders G 30 and H and a series of longitudinal bores M intersecting with certain of said radial bores.

The arrangement of the diil'erent ports and passages is diagrammatically illustrated in Figs. 6 to 9 which also show the diflerent positions of 35 the plungers J and K during the,cycle. Thus in Fig. 6 .both plungers J and K are at the lower ends oi their respective cylinders in which position a radial bore C connected with the inlet C and intersecting both cylinders'G and H is in communi- 4o cation with the'channels K and J of the respective plungers. In this same position a radial port G in the cylinder G is also in communication with the channel 'J and thlsport is connected through the channel M' to the radial port H" at the lower end ofthe cylinder H. In this same position the channel J in the plunger J communicates with a radial portG? which is con-' nected by the channel W with'a radial port H x which will displace fluid in the upper end of the cylinder H and expel it through the outlet 1''. Fig. 7 shows the position of the parts after the upward movement of the plunger K and it will be noted that in this position the channel K? is still in communication with the passage C and also communicates with a radial port H connectedbythepassagew with-aradial portG atthe lower end of the cylinder G. The upper end of this cylinder is in communication with a radial port (it connected by a channel M with a radial port H which is in communication with the chan--' nel K. in 'the plunger K. This channel K also communicates with a radial port H leading to the outlet F. Thus the fluid from the inlet'Cl will passto the lower end of the cylinder G, raising the piston J and'expelling fluid from the upper end of the cylinder G to the outlet F. Fig. 8

shows the position oi parts after this movement in which the inlet C is still in communication through the passage C with the channels K and J'. The channel J is also in communication with a radial port G which as before described is connected by the channel M with the radial port H at the upper end of thecylinder H. As before described, the lower end of the cylinder H communicates with the radial port H connected by a the channel M with the radial port G, but this port G is now in communication with the channel J which also registers with the radial port G leading to the outlet F. Thus fluid fromthe inlet C will pass to the upper end of the cylinder H forcing the plunger K downward and expelling fluid from the lower end-of this cylinder H to the outlet F Finally, in Fig. 9 the parts are in the position after the movement of the plunger K just described in which position the passage C is in communication with a channel K which registers with the radial port H connected by the M and radial port (3 with the-upper end of the cylinder G. The lower end of this cylinder is also 7 again connected through the radial port G and passage M to the radial port H but this port H is now in communication with the channel K which'registers with the radial port H connected with the outlet F. This permits of movement of the plunger J back into the position shown in Fig. 6 and during such movement the expulsion of fluid from the lower end of the cylinder G to the outlet F.

It will be understood that during operation all of the ports and passages are fllled with fluid but to avoidconfusion we have indicated in the diagrammatic views only the fluid which is in N located in a radial bore L between the cylinders G and H. The plungers J'and K are also provided with pairs of annular grooves J J These are so located that when the plunger is. at one end of its movement, one of the grooves of the pair will register with the bore L? and when the plunger is at the opposite end of its movement the other of said grooves will so register.

forced into the registering groove of the station- 'I'he pin N is of such length as to be ary plunger when, displaced from the groove of pistons.

amazes the moving plunger and thus during the entire movement of the latter it will serve as a lock for holding the stationary plunger from any movement. However, at the completion of travel of the moving plunger, the second groove of the pairwillberegisteredwiththepinNsoas-to" permit of the locking of this plunger by the initial movement of the other plunger.

To facilitate manufacture, the casing A is provided with additional bosses through which bores are made and having their outer faces substantially perpendicular to the direction of the re spective bores. These are shown in'the several cross sections as follows: In Fig.-16 0 and O'- are arranged for the entrance of bores L, L

respectively intersecting the cylinders G and H at angles; oi" substantially 30 to the common plane of said cylinders. These bores form respectively the ports G and H which intersect with the longitudinal bores M, M. In Fig. 17'

is shown a bore L in the common plane of the cylinders G and H and which as before described holds the pin N forming the interlock between In Fig. 18 the ports Gland 1-1 are bored respectively through the hollow bosses D and D to connect the cylinders G and H with the outlets F and F. In Fig. 19 bores Land L respectively form the ports G and H connecting with the longitudinal bores M and M. In Fig. 20 the bore C enters from the hollow boss B to connect both cylinders G and H with the inlet C. In Fig. 21 the bore L in thecommon plane of the two cylinders forms the port G which connects the cylinder G with the iongitudinal boreM. Also, the bore L" forms the port 11- which connects the cylinder H with the longitudinal bore W. In Fig. 22 the 'ports G and H are bored through the hollow bosses E and E to connect the cylinders G and H respectively with the outlets F and F. In Fig. 23 bores U and L form the ports G and H respectively connecting the cylinder G to the longitudinal bore M and the cylinder H to the longitudinal bore M All of the radial bores which enter the casing from the outside thereof have their outer ends closed by screw plugs L For convenience in mounting, the casing A is provided with a projection P. on one side thereof which has a bore P therethrough for engagemerit with any suitable supporting member.

While we have described specifically only two plungers operating in two cylinders, it is obvious that any number of cylinders and plungers, not less than two. can be used, the operation being essentially the same.

For certain uses it may be desirable to employ a plurality of dividing runitsused either in multiple or in series. Fig; 24 shows a series arrangement in which one unit Q has a liquid inlet Q and a'plurality of outlets Q; One of theseoutlets forms the inlet for a second unit R which also has a plurality of outletsR'. With this arrangement there will be a longer interval between successive discharges through the outlets R than between successive discharges through the outlets Q which may be advantageous for certain uses For example, it will be seen that liquid -will not be injected to the second unit until liquid is discharged from the outlet of the first device which is connected to the inlet of the second device. Or in other words, in the embodiment shown, liquid will be discharged from'the second unit once every four times, it is discharged from the first unit, and from the 7 third unit once every sixteen times liquid is disoneness charged from the first unit, and so on for the remainder oi the units. From the above it will be seen that the time rate operation of successive units is governed by the operation of the g pistons of the preceding unit.

What we claim as our invention is:

1. Liquid dividing means comprising a plurality of units, each unit consisting of a casing having a fluid inlet and a plurality of fluid outlet pas-' sages, a plurality of cylinders and interconnecting passages and a reciprocatory piston in each cylinder actuated by the incoming fluid and ejecting a measured quantity of outgoing fluid, and valve means operable by each piston for con- 1 trolling and directing both the admission and ejection of fluid of another cylinder, one of said units being arranged in series with another unit and receiving its fluid from one of the outlets oi the latter.

2. A multiple liquid dividing feed system comprising a first unit having an inlet and a pinrality of outlets and having piston means operable by liquid delivered to said inlet under pressure for electing a measured quantity of liquid as from first one and then another of its outlets,

asecond dividing unit having an inlet and a plurality of outlets and having piston means operable to elect a measured quantity 0! liquid from first one and then another of its outlets, conduit means connecting one of the outlets of said firstnamed unit with the inlet or said second-named unit so that liquid ejected from said one outlet operates to actuate the piston means of said second-named unit whereby the second unit is operated once every cycle of operation of said first-named unit.

3. A multiple liquid dividing feed system comprising a plurality of connected dividing units including a first unit having an inlet and a plurality oi outlets and having piston means operable by liquid delivered to said inlet under pressure for ejecting a measured quantity 0! liquid from first one and then another of said outlets, each of the remainder of said units having an inlet and a plurality oi outlets and having piston means operable by liquid injected into said units from said first unit to discharge a measured quantity of liquid first from one and then another oi its outlets, and conduit means connecting said units.

4. A multiple liquid dividing feed system comprising a plurality of connected dividing units including a first unit having an inlet to which liquid is delivered under pressure from a source of supply and having a plurality of outlets from which liquid is elected in sequence by piston means, each oi the remainder oi said units having an inlet and a plurality of outlets with pistons operable by injection of liquid from a preceding unit for electing a measured quantity of liquid in sequence from its outlets, and conduit means connecting an outlet of one or said units to an inlet of another of said units whereby the pistons 01 successive units will be actuated at a time period governed by the operational the piston 01 the preceding unit.

6. Ina liquiddividingmeans, acasinghsving a plurality of combined pumpfiig and driving elements comprising two pairs oi piston receiving cylinders and a piston in each cylinder, means connecting the pistons in each pair of cylinders for movement in unison, each of said elements having a conduit portion serving both as means for feeding liquid thereto to. drive its piston and as means for discharging liquid thereirom, means to supply liquid to said conduit portions, valve means controlling the feeding oi. liquid to and the discharge of liquid from each of said conduit portions so that said pistons act sequentially as driving and as pumping means, and locking means external of said supply means and said conduit portions and cooperable with said elements to assure sequential operation of said pistons.

6. In a liquid dividing means, a casing having a plurality of combined pumping and driving elements comprising two pairs of piston receiving cylinders and a piston in each cylinder, means connecting the pistons in each pair of cylinders for movement in unison, each of said elementshaving a conduit portion serving both as means for feeding liquid thereto to drive its piston and as means for discharging liquid therefrom, means 'to supply liquid to said conduit portions, valve pistons thereby to assure sequential operation of said pistons.

7. In a liquid dividing means, a casing having a plurality 01' combined pumping and driving elements comprising two parallel pairs of piston receiving cylinders and a piston in each cylinder, means connecting the pistons in each pair oi cylinders for movement in unison, each of said elements having a conduit portion serving both as means for feeding liquid thereto to drive its piston and as means for discharging liquid therefrom, means to supply liquid to said conduit portions, valve means controlling the feeding of liquid to'and the discharge of liquid from each 01' said conduit portions so that said pistons act sequentially as driving and as pumping means, saidcasing having a guide bore Joining one cylinder oi one pair to one cylinder of the other pair, means closing said bore against flow of liquid therethrough, a locking pin reciprocally fitting said bore and of such length that when one of its ends is flush with the surface of one cylinder bore its other end will project into the bore 01' said other cylinder, and a pair of longitudinally spaced, locking grooves in each piston 01 said one and oi said other cylinder to receive said pin, said pin being alternately moved by one piston to engage in a groove in the other piston thereby to lock said pistons alternately against movement.

ADOLl'." von WANGENHEIH.

WALTER B. LANDON.

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