MXPA00004570A - Lubricant supply device - Google Patents

Abstract

A lubricant supply device (1;211) having a housing (3) defining a reservoir (R) for holding a supply of lubricant, a pump (7) in the housing (3), and a lubricant distributor (5;215) having a sealing connection with the housing (3). The distributor (5;215) has an inlet (111) for entry of lubricant into the distributor (5;215) and multiple outlets (113) for exit of lubricant from the distributor (5;215) for delivery to multiple points of lubrication. The distributor (5;215) and housing (3) have mating surfaces (115, 117) which seal against one another whereby lubricant from the pump (7) can flow from the housing (3) directly into the distributor (5;215) without intervening lines.

Description

DEVICE FOR SUPPLY OF LUBRICANT BRIEF DESCRIPTION OF THE INVENTION The invention relates to a lubricant supply device with a storage tank for the lubricant, a lubricant distributor (for example, a progressive divider valve assembly) for distributing lubricant to several lubrication points, a supply pump for supplying lubricant to the distributor, and at least one motor to drive the feed pump. In conventional devices of the type described above, the lubricant distributor is connected to the lubricant pump using separate high pressure hoses. The use of such hoses requires a large amount of space for installation. In addition, hoses are expensive and prone to failure. Another disadvantage of such conventional devices is that any of the dispenser outputs that are not in use, are typically connected to one or more outlets that are in use, which results in the supply of excess lubricant to one or more points. of lubrication. Among many of the objects of this invention can be noted the provision of an improved lubricant supply device that is simpler, more compact and more reliable in terms of operation; the provision of said device that eliminates the need for high pressure hoses to the distributor; the provision of said device in which the unused outputs of the distributor are connected to the housing for the return of the lubricant to the tank; the provision of said device having different mounting options of the distributor to accommodate the different types and / or configuration of the lubricant supply lines; and the provision of said device that is economical in its manufacture. In general, a lubricant supply device of this invention comprises a housing defining a reservoir for maintaining a supply of lubricant, and a pump in the housing. The pump has an inlet to receive lubricant from the tank and an outlet. The device also includes a lubricant dispenser having a sealing connection with the housing. The distributor has one or more inputs for the introduction of lubricant to the distributor and one or more outlets for the discharge of lubricant from the distributor for the supply to one or more lubrication points. The sealing connection comprises coupling surfaces in the distributor and the housing has a sealing fit with each other. The supply passage in the housing extends from the pump outlet and terminates at one or more exit openings in the housing engagement surface. Each of the distributor inlets comprises an inlet opening in the coupling surface of the distributor located generally opposite a corresponding outlet opening in the coupling surface of the housing whereby the lubricant of the pump is adapted to flow from the passage of supply of the accommodation directly to one or more entrances of the distributor. In another aspect of this invention, a lubricant supply device comprises a housing, a pump in the housing, the pump has an inlet and outlet, and a lubricant reservoir in the housing for storing a supply of lubricant. The tank has an outlet in fluid communication with the inlet of the pump for the supply of lubricant therein from the tank. A manifold is directly connected to the housing and has one or more entries for the introduction of lubricant to the distributor and one or more outlets for the discharge of lubricant from the distributor to supply one or more lubrication points. The supply passage in the housing extends from the pump outlet and terminates at said distributor inlets so the pump is operated to pump lubricant through the supply passage directly to the distributor without the need for additional flow lines ( That intervene). In a particularly simple design of the lubricant supply device of this invention, the motor activates a piston of the feed pump by means of an eccentric part rotatably supported on an arrow. For simplicity, the shaft can also rotatably support a stirrer that pushes the lubricant from the storage tank downward in a direction towards the feed pump. Furthermore, a simple and reliable construction is ensured if the eccentric part and the agitator are preferably driven together by the motor of the feed pump by means of a pinion and gear actuator. The housing may comprise a first part of the housing defining a pump chamber. The first part of the housing has a lower wall, a flange extending from the lower wall and an intermediate wall in the flange separated above the lower wall. The agitator preferably rotates directly below the intermediate wall through which the arrow extends and in which an opening for the lubricant is provided. In this way, the lubricant is transported effectively in the direction towards the feed pump. The first part of the housing can support a second part of the mobile housing that forms the reservoir and in which a securing plate is guided to pressurize lubricant in the reservoir. This second part of the housing can be transparent so that the level of filling can be observed. The second part of the housing can be in the form of a removable closure having a side wall and an upper wall that can be adjusted on the arrow. The lower circumferential edge of the side wall is supported in the region of a step in the first part of the housing so as to form a seal. The securing plate, which can be pushed down by a spring which reacts against the upper wall of the closure, slides axially on the arrow with its outer circumferential edge in sealing engagement with the side wall of the closure. The arrangement is such that the negative pressure generated by the feed pump pulls the securing plate down. The motor and an electrical programmable controller are preferably accommodated in a chamber positioned at the bottom of the first housing part to maintain the reduced size of the structure. The operating time of the feed pump is preferably controlled by a sensor that scrutinizes the movement of an indicator pin of the lubricant distributor. For example, the operating time and / or the dwell time of the feed pump can be adjusted by the controller. Means, such as, for example, a magnet pin and sensor, are provided to detect when the securing plate is in its lower position, thus indicating that the lubricant in the reservoir is in a low level condition and that it needs replenish In addition, a safety valve and / or filling adapter can be integrated into the housing part. In a special embodiment of the invention, a membrane keyboard and / or an operation status screen is provided on the outside of the housing so that the automatic lubricant supply operation can be easily turned on or off either manually or automatically and can be easily monitored in relation to your program flow.

The objects, features and additional advantages of this invention will be partly evident and partly signaled from here on out.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view of a lubricant supply device of the present invention; Figure 2 is a top plan view of a base part of the housing, a pump and a stirrer of the delivery device; Figure 3 is a bottom plan view of the device; Figure 4 is a vertical section along lines 4-4 of Figure 1; Figure 4A is an amplified portion of Figure 4 showing the pump; Figure 5 is a vertical section in lines 5-5 of Figure 2 but with an upper portion of the housing added to show additional details; Figure 5A is an enlarged portion of Figure 5 showing a release valve; Figure 6 is a vertical section in lines 6-6 of Figure 2 but with an upper portion of the housing added to show additional details; Figure 7 is a sectional view illustrating a manifold attached to the base portion of the housing; Figure 8 is a top perspective view of the agitator; Figure 9 is a bottom perspective view of the agitator and an eccentric part; Figure 10 is a perspective view of the base portion of the housing; Figure 11 is a top plan view of the base portion of the housing; Figure 12 is a bottom plan view of the base portion of the housing; Figure 13 is a side elevational view of the device with portions of the upper part of the upper part of the housing separated to reveal details; Figure 14 is a view similar to Figure 13 but with additional parts of the housing separated to show additional details; Figure 15 is a rear elevation view of the second embodiment of the device; Figure 16 is a side elevational view of the device shown in Figure 15; Figure 17 is a bottom view of the device of Figure 15; Figure 18 is a vertical sectional view of the device shown in Figure 15; Figure 18A is an enlarged portion of Figure 18 showing how an adapter is attached to the base portion of the housing; Figure 18B is an enlarged portion of Figure 18 showing a manifold attached to the adapter; Figure 19 is a sectional view showing a manual injection block attached to the base portion of the housing; and Figure 20 is a bottom view of the manual injection block of Figure 19. Corresponding reference characters indicate corresponding parts through the drawings.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES With reference to the drawings, particularly Figures 1-4, the lubricant supply device of the present invention is designated in its entirety by the reference number 1. The device comprises a housing generally designated as 3 which defines a reservoir R for maintaining a supply of lubricant, a distributor generally designated with the number 5 connected to the housing for distributing lubricant to multiple lubrication points, and a supply pump 7 in the housing for supplying lubricant from the reservoir to the distributor. The housing 3 comprises a plurality of parts, including a first part, generally designated 11, which may be mentioned as a base for storing several components including the pump 7, a second part, generally designated 13, supported on the base 11 and which forms the deposit R, and a third part usually designated as 15, below the base. As shown in Figure 4, the base 11 has a horizontal bottom wall 21, a rim 23 extending from the bottom wall at its periphery, and an upper wall 27 spaced above the bottom wall and secured (by means of adjusters) to the top of the flange. The lower wall 21, the flange 23 and the upper wall 27 define a pump chamber 31 containing the feed pump 7. The second housing part 13 above the base 11 has a generally cylindrical side wall 33 and an integral convex top wall 35. which is combined to form the R reservoir of lubricant. The lower edge of the side wall 33 is supported on an annular or shoulder step, 41 on the base 11. An O-ring 43 on the base 11 is sealed against the side wall 33 to ensure a sealing fit. The upper wall 27 of the base has openings 45 therein, for the flow of the lubricant from the reservoir R to the pump chamber 31. A pusher plate (slide) 51 slidable on a vertical arrow 53 in the housing 13 is on the lubricant in the reservoir R and has an annular seal 55 on its periphery which is sealed against the side wall 33 of the reservoir. The seal 55 is formed with a reinforcement rib (Figure 4) to reduce seal flexibility. A coil spring 61 surrounding the arrow 53 between the upper wall 35 of the reservoir and the securing plate 51 pushes the plate downward to force the lubricant through the openings 45 in the pump chamber 31. The upper housing portion 13 is movably secured in place by means of a screw 63 extending downward through a hole in the upper wall 35 of the reservoir R at the upper end of the arrow 53. As best illustrated in FIG. 4, the arrow 53 is threadably mounted in an embossment 67 formed as an integral part of the lower wall 21 of the housing base 11 and extends up therefrom through a central hub 69 in the upper wall 27 in the tank R defined by the second housing part 13. An agitator 71 is rotatably located on the arrow 53 immediately below the upper wall 27 of the base to feed lubricant from the reservoir to the pump 7. C As shown in Figure 8, the agitator 71 can have the configuration of a spoke wheel 75 formed to push the lubricant in a downward direction as the agitator rotates on the arrow 53. The agitator is rotated by means of an electric motor 77 (figure 4) by means of a pinion and gear actuator 81. An eccentric part 83 for driving the pump 7 is rotatably located on the arrow 53 immediately below the stirrer 71. The eccentric part 83 is driven by the same electric motor 77 and preferably is formed (but not necessarily) as an integral part of the agitator, as shown in figure 9. With reference to figures 4 and 4A, the pump 7 is an expandable chamber pump comprising a piston 87 mounted for linear correspondence in the horizontal hole 89 of the cylinder 91 mounted in an opening in the rim 23 of the base 11 of the housing. The cylinder 91 has one or more inlets 93 for introducing lubricant from the pump chamber 31 into the cylinder bore 89, and one or more outlets 95 for the discharge of lubricant from the bore 89, a lubricant charge is discharged from the cylinder during a forward pumping stroke of the piston 87 and a load of lubricant is poured into the cylinder bore during a return stroke of the piston. The piston 87 is pushed until it contacts the eccentric part 83 by means of a spring 97, so that the rotation of the eccentric part by the motor functions to alternate the piston in the cylinder 91. The eccentric part 83 has a collar 98 of a wear-resistant material thereof which is engaged by a cover 99 of the wear-resistant material in the piston. A spring-deflected check valve, generally designated with the number 100, mounted in the cylinder bore 89 prevents reverse flow of lubricant during a return stroke of the piston 87. The check valve 100 has a rod 101 slidable in a guide 102. mounted stationary in the cylinder bore 89 to guide the check valve as it moves between an open position during a forward stroke of the piston 87 and a closed position during a return stroke of the piston. Still with reference to figure 4A, the lubricant is supplied from the pump 7 to one or more outlet openings 105 in the housing by the passage including an annular groove 106 in the housing surrounding the cylinder 91 and communicating with the outlet (s) of the pump 95 and a plurality of holes 107 drilled in the bottom wall 21 of the base 11, as shown in Figures 10-12, the direction of flow is indicated by the arrows. The holes 107 connect to the annular groove 106 and the outlet openings 105, only one outlet opening is shown in the drawings. As shown in Figures 3, 7 and 13, the lubricant distributor 5 preferably has one or more inlets 111 (only one illustrated in Figure 7) and multiple outlets 113 connected to the supply lines (e.g. hoses) flexible) to supply lubricant to multiple lubrication points. (The outputs 113 are shown connected in the drawings instead of being connected to the supply lines.) The distributor is preferably a progressive distributor of the type sold by Lincoln Industrial Corporation of St. Louis Missouri, as a divisor block of SSV18, number from part 61937582-1. This type of distributor is described in detail in the U.S. patent. No. 4,186,821, which is incorporated herein by reference. The distributor 5 (also referred to as a divider valve assembly) contains a series of positive displacement coils that are moved sequentially by means of inlet lubricant to supply predetermined quantities of lubricant in series to the outlets 113 of the distributor. (In the embodiment shown in Figures 1-14, outputs 113 are on the underside of the distributor, however this orientation may vary.) Other types of distributors may also be used. However, without considering the type used, an important aspect of this invention involves a sealing connection of the distributor 5 directly to the housing 3, without intervening the holes or other lines.

In the embodiment of Figures 1-14, the distributor 5 is directly connected to the base 11 of the housing 3, although it will be understood that the sealing connection can be between the distributor and other parts of the housing. Where the distributor 5 is connected to the base 11, as shown in Figure 7, the mating surfaces between the two parts is a downward facing surface 115 on the bottom wall 21 of the base and a surface facing towards the base. up 117 in the distributor. Each inlet of the distributor 111 comprises an inlet opening 119 in the connecting (coupling) side 117 of the distributor. Each of these inlet openings 119 is measured and located to coincide with a corresponding outlet opening 105 in the mating surface 115 of the lower wall 21 of the base 11. The dispenser is secured in place to the base 11 by means of screw adjusters 121, or in another suitable form. An O-ring 123 (FIG. 7) is provided in a reamer 125 in the inlet opening 119 of the manifold and is sealed against the coupling surface 115 of the base 11 around the outlet opening 105 to prevent spills in this interface. . A lubricant return passage 131 (fig 7) in the distributor 5 connects several outlets 113 of the distributor. If one or more of these outlets 113 is not in use, each of the outlets may become clogged, in which case the lubricant that would otherwise be discharged through the outlet 113 is directed to the return passage 131 which carries the lubricant. to a return outlet opening 135 in an upwardly facing coupling surface 117 of the distributor. This opening 135 is directly opposite an entrance opening 137 of a return passage 139 in the lower wall 21 of the base 11 of the housing 3. The return passage 139 in the base transports lubricant back to the pump chamber 31. Consequently, there is no need to divert this lubricant to other outlets 113 of the distributor 5, which can cause an excess of lubricant to be supplied to a lubrication point. An O-ring 141 (fig 7) which was received in a stretcher 143 in the outlet opening 135 of the return passage 131 is sealed against the coupling surface 115 of the base 11 to prevent spillage. The electric motor 77 and the electronic programmable controller 147 (fig 4) are accommodated in a chamber 149 defined by a wall 153 of the third part of the housing 15 placed in the lower part of the base housing part 13 to ensure a compactability of the whole device. With the help of the controller 147, the operating time of the feed pump 7 can be controlled by a sensor 151 which scrutinizes the movement of an indicator pin 153 of the lubricant distributor (see fig 13). The operating time and / or the resting time of the feed pump can be adjusted. A membrane keyboard 181 and / or an operation status display 183 is provided in the housing 3, preferably in the second or third housing portions 13, 15, by which the controller 147 can be tripped, turned off and monitored (see fig. 1 ). Referring to Figure 6, a sensor bolt 191 extends through the base 11 of the housing and to the reservoir R. This bolt is mounted for slidable movement in the lower wall 21 of the base 11 and is pushed upwards by a spring 195. The push plate 51 engages with the upper end of the pin 191 when the plate drops to a level indicating that the level of lubricant in the reservoir is low. As the plate 51 descends, it pushes the bolt 191 downwards. A suitable sensor 197 (e.g., a magnet sensor) mounted on the bottom of the base 11 adjacent to the lower end of the sensor pin 191 senses the downward movement of the pin and signals the controller 147 to display a visual message of "void" "or" low level "on the screen 183 so that the tank can be refilled. The ability to refill is achieved by using a refill attachment 201 (fig 4) mounted on the flange 23 of the base 11 of the housing. The lubricant introduced in this fitting enters the pump chamber 31 and is filled to the point where the additional lubricant flows through the openings 45 in the upper wall 27 of the base 11 and in the reservoir R to fill it, the push plate 51 rises as the level in the tank rises. The second part 13 of the housing can also be transparent to provide a visual indication of the lubricant level in the reservoir. A safety valve (release) 205 (fig 5A) is also integrated into the housing 3. This valve communicates by means of a release passage 207 with the supply passages 107 in the base 11. In the case there is an obstruction in the in these steps 107 or in the distributor 5 sufficient to cause the lubricant pressure to rise above a predetermined level (e.g. 3000 psi), the safety valve opens to return additional lubricant supplied from the pump 7 back to the pump chamber 31. The dispenser 5 has an injection port 211 (fig 3) by which the lubricant can be injected directly into the dispenser, by diverting the pump 7, as it uses a lubrication gun or the like. This feature can be used when the pump fails, or to test the location of an obstruction in the system in the case when there is no lubricant flow from the distributor. If the lubricant pumped to the distributor 5 via port 211 does not leave the distributor, then the obstruction is in the distributor; if the lubricant leaves the distributor, then the obstruction is upstream from the port in the housing 3 (for example in holes 107). The use of the lubricant delivery device 1 described above can be described as follows. When energized, the electric motor 79 rotates the agitator 71 and the eccentric part 83 over the arrow 53 by means of the pinion and gear actuator 81. The rotation of the agitator feeds the lubricant downwards towards the inlet (s) 93 of the pump 7. The lubricant in the pump chamber 31 is refilled by additional lubricant flowing from the reservoir R through the openings 45 in the upper wall 27 of the base 11, while being aided by the deflected thrust plate. spring 51. The rotation of the eccentric part 83 drives the piston 87 of the pump through a forward stroke to discharge a quantity of lubricant through the outlet (s) 95 of the pump to supply the distributor 5 along of a path constituted by the annular groove 106 and supply passages 107 in the lower wall 21 of the base 11, the outlet opening (s) 105 of the supply passages 107, and through the interface between the surface d coupling connection 115, 117 directly to the inlet opening (s) 119 of the distributor 5. The return spring 97 pushes the piston 87 through a return stroke, generating a negative pressure that causes a new discharge of lubricant into the hole 93 of the cylinder 95. The distributor 5 functions to distribute lubricant to multiple lubrication points by means of lubricant lines connected to the outlet openings 113 of the distributor. Any outlet opening 113 that is not in use is simply obstructed, causing the lubricant in these outlets to be directed back to the pump chamber 31 by means of return passages 131, 139 in the distributor 5 and the base 11. After a period of operation, the push plate 51 in the reservoir R will descend to a level to which it engages the sensor pin 191 and push it downwards. The motion sensor 197 detects this movement and signals the controller 147 to display a suitable low level message on the screen 183 indicating that the R tank needs to be refilled. Refilling is achieved by using the filling attachment 201. Figures 15-19 illustrate a lubricant delivery device, generally designated 211, in accordance with a second embodiment of the present invention. The device 211 is essentially identical to the first embodiment described above and the corresponding parts are designated by means of corresponding reference numbers. However, in this embodiment a distributor is not mounted directly on the lower surface 115 of the base 11 of the housing 3. Preferably, a distributor 215 is connected to a different part of the housing, namely, an adapter comprising a spacer block generally designated with the number 217. The separator block 217 is used to place the distributor 215 in a location where it is easily accessible for connection to a rigid conduit, such as a stainless steel conduit, which may be required in certain applications for reasons of sanitation, as in the food and beverage industries. The dispenser 215 is much like the dispenser 5 described above only having side outlets 218 (instead of lower ones) to facilitate this connection. A suitable distributor for this purpose is available from Lincoln Industrial Corporation of St. Louis, Missouri, as a divisor block of SSV18, part number 61937588-1. The separator block 217 is connected to the base 11 by suitable adjusters 219 (fig 15) in a position where the upper face 221 of the spacer block lies directly against the downwardly facing surface 115 of the lower wall 21 of the base (fig 18). The separator block has a passage 223 in it essentially extends the total height of the block. As shown in fig. 18, this step 223 communicates at its (upper) inlet end 227 with a supply passage of the adapter 229 in the base 11, a seal of the ring O 231 is provided to prevent spills in this interface. The supply passage of the adapter 229 communicates with the pump 7 via the passage 107, as best shown in FIGS. 10 and 12. As shown in FIGS. 18 and 18B, the passage 223 has a lower end 233 that is communicates with a circumferential groove 235 in a bolt 237 that extends through a limited outlet hole 239 in the spacer block 217 and is threaded into a threaded entry hole 241 in the manifold 215. The bolt has an axial pitch 242 therein, the upstream end (on the right side in FIG. 18B) of which communicates with the slot 235 by means of one or more radial passages 243, and the downstream (left) end of which communicates with a step of supply 246 in the distributor 215 so that the lubricant is supplied from the passage 223 in the separator block 217 to the supply passage of the distributor 246 by means of the slot 235, the radial passage (s) 243, the axial passage 242 and the entrance hole 241. A stamp d the O-ring 247 around the rod of the bolt 237 provides a seal between the bolt head and the spacer block 217. A second O-ring 249 around the rod provides a seal between the mating faces 251, 253 of the spacer block 217 and the distributor 215. With reference to Figure 15, a manual injection block, generally designated with the number 261, can be attached to the lower wall 21 of the base 11 to inject lubricant into the adapter 217 for supply to the distributor 215 in the case of the that the pump 7 fails or there is an obstruction upstream of the inlet of the adapter 227. As shown in figures 19 and 20, the injection block 231 is attached by means of adjusters 265 to the lower wall 27 of the housing adjacent to the adapter 217. The injection block has a lubricant attachment 267 for connection to a lubrication source (e.g. a lubrication gun) and a supply passage 271 with an outlet opening 273 which is connected to the aforementioned opening 105 in the base 11. The seal of the O-ring 275 in the outlet opening 273 is sealed against the coupling face 115 of the base 11 to prevent spillage. The lubricant injected into the injection block 261 flows through the supply passage 271 and through the opening 105 to be supplied by means of the passages 107 and 229 to the separator block passage 223. It will be noted from the foregoing that a delivery device 1, 211 of the present invention eliminates the need for separate hoses or the like to connect the housing 3 and the pump 7 to the dispenser 5, 215. As a result, the device is more compact and easier to operate. In addition, the device is simple to operate, efficient and easy to maintain. The design also provides multiple manifold mounting configurations, including the configuration shown in Figure 1-14 in which the manifold is "mounted on the back", i.e., directly connected to the base 11 of the housing, and the configuration shown in Figures 15-20 where the distributor is "mounted on the bottom", that is, connected directly to the part of the housing adapter, and where the distributor may be more accessible for the use of rigid outlet lines. In view of the above, it will be seen that many objects of the invention are achieved and other advantageous results are obtained.

^ ¡^ J ^ $ & j & Since various changes can be made to the above constructions without departing from the scope of the invention, it is intended that all of the matters contained in the foregoing description and that are shown in the accompanying drawings be construed as illustrative and not as limiting.

Claims (20)

NOVELTY OF THE INVENTION CLAIMS

1. - A lubricant supply device comprising: a housing defining a reservoir for maintaining a supply of lubricant, a pump in said housing, said pump having an inlet for receiving lubricant from the reservoir and an outlet, a lubricant distributor having a sealing connection with the housing, said distributor has one or more entries for the introduction of lubricant in the distributor and multiple outlets for the discharge of lubricant from the distributor for the supply to multiple lubrication points, said sealing connection comprises surfaces of coupling in the manifold and the housing has a sealing fitting with each other, the supply passage in the housing extends from the outlet of the pump and ends in one or more outlet openings in the engagement surface of the housing, each of the entrances of the distributor comprises an entrance opening in the coupling surface of the distributor located generally opposite a corresponding outlet opening in the coupling surface of the housing wherein the lubricant from the pump is adapted to flow from the supply passage of the housing directly into said distributor inlets.

2. A device for the supply of lubricant according to claim 1, further characterized in that it comprises a seal between said coupling surfaces to prevent spillage of lubricant as it flows from the housing to the distributor.

3. A device for the supply of lubricant according to claim 1, further characterized in that it comprises a return passage in the distributor and the housing for the return of lubricant from one or more unused exits of the distributor, back to the reservoir of lubricant.

4. The device for the supply of lubricant according to claim 3, further characterized in that the return passage comprises a return passage in the distributor having an outlet opening in said distributor coupling surface and a return passage in the housing having an entry opening in said housing engaging surface, the inlet and outlet openings of the return passages are directly opposite each other to allow the lubricant to flow from the distributor directly into the housing, and a seal to seal between the inlet and outlet openings of the return passages.

5. A device for the supply of lubricant according to claim 1, further characterized in that the housing comprises a first part of the housing defining a pump chamber for housing the pump, said first part of the housing has a lower wall with a downwardly facing bottom surface forming said engagement surface of the housing, said supply passage in the housing is formed in the bottom wall, said distributor having an upward facing surface forming said mating surface of the distributor.

6. - A device for the supply of lubricant according to claim 1, further characterized in that said distributor is a positive displacement divider valve assembly that distributes the lubricant to the distributor exits in sequence.

7. A device for the supply of lubricant according to claim 1, further characterized in that said housing comprises a first part of the housing defining a pump chamber for storing the pump, said first part of the housing has a lower wall, and an adapter comprising a spacer block attached to the bottom wall, said spacer block has a surface that forms the coupling surface of the housing, said supply passage in the housing is formed in said bottom wall of the first part of the housing and in the separator block.

8. A device for the supply of lubricant according to claim 7, further characterized in that said distributor is a positive displacement divider valve assembly that distributes lubricant to the manifold outlet in sequence.

9. A device for the supply of lubricant according to claim 7, further characterized in that it comprises a manual lubricant injection block attached to the first part of the housing, an accessory in the injection block for joining a line of lubricant, and a passage in the block extending between the fitting and the supply passage in the housing where the lubricant can be injected into the block and supplied to the distributor without using the pump.

10. A device for the supply of lubricant according to claim 1, further characterized in that it comprises a vertical date in said housing, an eccentric part mounted rotatably on the shaft and coupled with the pump, and a motor for rotating the eccentric part to operate the pump.

11. A device for the supply of lubricant according to claim 10, further characterized in that it comprises a stirrer on the rotary shaft to feed lubricant from the reservoir to the pump inlet.

12. A device for the supply of lubricant according to claim 11, further characterized in that said housing comprises a first part of the housing defining a pump chamber for storing the pump, said supply step in the housing is formed in the lower wall of the first part of the housing.

13. A device for the supply of lubricant according to claim 12, further characterized in that said first part of the housing further comprises an upper wall separated above said lower wall, and an opening in the upper wall of the lubricant passage from the deposit to the pump chamber.

14. A device for the supply of lubricant according to claim 13, further characterized in that the housing further comprises a second housing part supported on the base and defines said tank, and a pushing element inside the second housing part to push the lubricant down into the pump chamber through the opening in said top wall.

15. A device for the supply of lubricant according to claim 14, further characterized in that it comprises a spring on said date to push said pushing element towards said upper wall.

16. A device for the supply of lubricant according to claim 15, further characterized in that said second part of the housing has a side wall and an upper wall, and wherein said second part is secured in place by a screwed adjuster that it extends through the upper wall at an upper end of said arrow.

17. A device for the supply of lubricant according to claim 14, further characterized in that it comprises a system for detecting when the thrust element moves to a position indicating a condition of low level of lubricant in the reservoir, and for generate a signal in response to it.

18. A device for the supply of lubricant according to claim 14, further characterized in that said housing comprises a third part of the housing attached to the first part of the housing for storing the motor, and a programmable controller in said third housing part to control the operation of the motor and the pump.

19. - A device for the supply of lubricant according to claim 1, further characterized in that it comprises control means for controlling the operating time of the pump, said control means comprise a distributor indicator pin, movable to indicate the flow of lubricant from the distributor and a sensor, to detect movement of the indicator pin.

20. A device for the supply of lubricant comprising: a housing, a pump in said housing, said pump has an inlet and an outlet, a reservoir of lubricant in the housing to store a supply of lubricant, said reservoir has an outlet in fluid communication with the inlet of the pump for the supply of lubricant to the same from the tank, a distributor directly connected to the housing, said distributor has one or more inputs for the introduction of lubricant to the distributor and one or more outlets for the discharge of lubricant from the distributor for the supply to one or more lubrication points, and supply passages in the housing that extend from the pump outlet and end at said distributor inlets so the pump is operated to pump lubricant to through said supply step directly to the distributor without the need for additional flow lines.