CA2635788C - Automatic viscid substance actuator, dispenser and distributor - Google Patents
Automatic viscid substance actuator, dispenser and distributor Download PDFInfo
- Publication number
- CA2635788C CA2635788C CA2635788A CA2635788A CA2635788C CA 2635788 C CA2635788 C CA 2635788C CA 2635788 A CA2635788 A CA 2635788A CA 2635788 A CA2635788 A CA 2635788A CA 2635788 C CA2635788 C CA 2635788C
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- Canada
- Prior art keywords
- intake
- pump
- viscid
- viscid substance
- rotor
- Prior art date
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Links
- 239000000126 substance Substances 0.000 title claims description 26
- 239000012530 fluid Substances 0.000 claims 3
- 238000005461 lubrication Methods 0.000 abstract description 15
- 238000005086 pumping Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 description 20
- 239000004519 grease Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
- F16N11/08—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups with mechanical drive, other than directly by springs or weights
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N25/00—Distributing equipment with or without proportioning devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N25/00—Distributing equipment with or without proportioning devices
- F16N25/04—Distributing equipment with or without proportioning devices with rotary distributing member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Reciprocating Pumps (AREA)
Abstract
A pumping mechanism that can generate relatively high pressure using a small, low voltage geared DC motor, and a portable automatic lubricator for single or multi-point lubrication that includes a built-in distribution block is provided.
Description
AUTOMATIC VISCID SUBSTANCE ACTUATOR DISPENSER AND DISTRIBUTOR
Technical Field The presently disclosed subject matter relates to automatic dispensers for viscid substances such as lubricating grease.
Background Existing automatic lubricators driven by, for example, compressed air, electrical motors, electro-chemical gas generation, and compressed screws are known in the prior art. By way of example, published Canadian patent application no. 2,322,056 to the present inventor describes a Radial High Viscid Substance Actuator for the relocation of highly viscid substances such as slurries or lubricating grease from a storage chamber to a mechanical working area.
All prior known portable automatic lubricators, however, require the user to utilize a separate distribution block in order to distribute lubricant to more than one lubrication point at the same time. If the feed line between the lubricator and distribution block becomes blocked, all of the lubrication points serviced by the distribution block will simultaneously be affected. There accordingly remains a need for a motor driven portable automatic lubricator that can reliably deliver high viscosity lubricants in remote areas in low temperatures, and that can be powered by a low voltage portable power supply.
Summary Provided herein is a pumping mechanism that can generate relatively high pressure (of up to about 2000 psi) using a small, low voltage geared DC motor, and a portable automatic lubricator for single or multi-point lubrication that includes a built-in distribution block. Since the distribution block forms part of the lubricator itself, lubricant will continue to be delivered even if one or more outlets become blocked, thereby enhancing reliability (particularly in applications where redundant lubricant lines are used to service a given lubrication point). In some 3627606.1 embodiments, the lubricator utilizes a brushless motor and sealed circuitry in order to further enhance reliability and safety.
Brief Description of the Drawings For a fuller understanding of the nature and advantages of the disclosed subject matter, as well as the preferred mode of use thereof, reference should be made to the following detailed description, read in conjunction with the accompanying drawings. In the following drawings, like reference numerals designate like or similar parts or steps.
Figure 1 A is a side perspective view of an Automatic Viscid Substance Actuator, Dispenser and Distributor ("AVSADD") in accordance with an embodiment of the disclosed subject matter;
Figure lB is a side elevational view of the AVSADD of Figure 1;
Figure 1 C is a vertical cross-sectional view of the AVSADD of Figure 1, taken along line A - A
of Figure 2;
Figure 1D is an exploded side elevational view of the AVSADD of Figure 1;
Figure 2A is a bottom perspective view of the intake/distribution plate of the AVSADD of Figure 1;
Figure 2B is a bottom plan view of the intake/distribution plate of the AVSADD
of Figure 1;
Figure 2C is a top plan view of the intake/distribution plate of the AVSADD of Figure 1;
Figure 2D is a horizontal cross-sectional view of the intake/distribution plate of the AVSADD of Figure 1;
Figure 3A is a bottom perspective view of the pump body of the AVSADD of Figure 1;
Figure 3B is a bottom plan view of the pump body of the AVSADD of Figure 1;
Figure 3C is a top plan view of the pump body of the AVSADD of Figure 1;
3627606.1 Figure 4A is bottom plan view of the pump body shown partially assembled and including the rotor and pistons of the AVSADD of Figure 1;
Figure 4B is bottom plan view of the pump body of shown partially assembled and with the rotor and pistons of the AVSADD of Figure 1 shown in horizontal cross-section;
Figure 5A is a bottom perspective view of the rotor of the AVSADD of Figure 1;
Figure 5B is a top perspective view of the rotor of the AVSADD of Figure 1;
Figure 5C is a horizontal cross-sectional view of the rotor of the AVSADD of Figure 1;
Figure 5D is a vertical cross-sectional view of the rotor of the AVSADD of Figure 1;
Figure 6A is a bottom perspective view of the pump cover of the AVSADD of Figure 1; and, Figure 6B is a bottom plan view of the pump cover of the AVSADD of Figure 1.
Detailed Description of Specific Embodiments Referring to Figure 1, a portable automatic lubricator for single or multi-point lubrication that may be referred to as an "Automatic Viscid Substance Actuator, Dispenser and Distributor"
("AVSADD") is generally designated with reference numeral 1. The AVSADD
generally comprises an intake/distribution plate 10, lubricant storage chamber 20, storage chamber cap 30, optional replaceable storage chamber cartridge 40, optional cartridge piston 50 (for protection of stored lubricant from moisture and dust), lower protective cover 60, electronic circuit board with input buttons and output display 70, electrical motor 80, battery pack 90, and pump 100. All of the mechanical and electronic components of the AVSADD 1 are located within lower protective cover 60, and are separated from the lubricant storage chamber 20 (and any lubricant stored therein) by intake/distribution plate 10.
Cylindrical lubricant storage chamber 20 and (where used) optional replaceable storage chamber cartridge 40 are preferably constructed of a clear material to facilitate inspection of stored lubricant levels and contamination. In some embodiments, liquid lubricant may be poured directly into storage chamber 20 and secured therein with cap 30 by turning the cap 30 in a 3627606.1 clockwise direction to engage conventional complementary notches and grooves (not shown) on the chamber 20 and cap 30 to lock them together. To seal between storage chamber 20 and intake/distribution plate 10, a conventional O-ring 21 may be used.
Where a more viscid lubricant is to be dispensed, use of the replaceable storage chamber cartridge 40 is preferred. Cartridge 40 has an open top and a flat bottom with a cylindrical nozzle sized to mate with the intake cavity of intake/distribution plate 10 (see Figure 2C), and is covered with cartridge piston 50 to protect the stored lubricant from moisture and dust. In most embodiments, piston 50 is drawn downward through the cartridge 40 by the vacuum created by the suction of lubricant from the cartridge 40 by pump 100. However, in applications where a particularly viscid lubricant is to be pumped, a conventional spring (not shown) may be placed between the piston 50 and cap 30 to assist in pumping.
With reference to Figures 1 and 2, intake/distribution plate 10 acts as a base for the attachment by conventional means of storage chamber 20 (as discussed above), for the attachment of pump 100, electrical motor 80, and lower protective cover 60, and for the optional attachment of the entire AVSADD to a wall or to some other apparatus (such as, perhaps, the one being lubricated by the AVSADD). Intake/distribution plate 10 may be constructed from metal or from any other suitable material that is strong enough to support the combined weight of the AVSADD
apparatus and any lubrication substance contained therein - typically at least about 2 kg.
Intake/distribution plate 10 further comprises a system of ports and internal distribution channels (see generally Figure 2D and the discussion below) through which lubricant is distributed by the AVSADD apparatus.
Figures 2A and 2B illustrate the underside (i.e. the pump side) of intake/distribution plate 10, and show intake ports 11, outlet ports 12 that communicate with tapered exits 13 via internal distribution channels 14 (see Figure 2D), pump/motor attachment holes 15, lower cover attachment holes 16, mounting flange 17, and AVSADD mounting holes 18. Figure illustrates the top side (i.e. the storage chamber side) of the intake/distribution plate 10, and shows intake ports 11, pump/motor attachment holes 15, mounting flange 17, AVSADD
mounting holes 18, and storage chamber mounting holes 19. As is best seen in Figure 2D, internal distribution channels 14 extend between outlet ports 12 and exits 13.
In use, lubricant is 3627606.1 drawn by pump 100 through intake ports 11, and then forced out through exits 13 via outlet ports 12 and internal distribution channels 14.
Figures 2A-2D illustrate four sets of each of intake ports 11, outlet ports 12, internal distribution channels 14 and exits 13 for the sake of clarity. However, it will be understood that an intake/distribution plate 10 may comprise any number between 1 - 8 of these sets of ports and channels (thereby permitting a user to directly supply as many as eight separate points with lubrication at one time) in an AVSADD apparatus that remains small enough to be driven by a small, low voltage geared DC motor.
Figures 3 - 6 detail the components and functioning of pump 100, which as previously described is mounted to the underside of intake/distribution plate 10, between the intake/distribution plate and the electrical motor 80. In general, pump 100 sucks lubricant from the lubricant storage chamber 20 (or optionally from replaceable cartridge 40), through the intake ports 11 of intake/distribution plate 10, and pumps the lubricant out through tapered exits 13 via outlet ports 12 and internal distribution channels 14 of intake/distribution plate 10. Pump 10 generally comprises pump body 110, circular rotor 120, a plurality of pistons 130, and pump cover 140.
The number of pistons 130 in pump 10 may be odd or even, but in order to maximize pumping efficiency, must number at least one more than the number of intake apertures 111. In this way, there is no idle time in the pump cycle, and that at any given moment, one or more pistons are ejecting lubrication substance in to the pump or pushing it out.
As is best seen in Figures 3A - 3C, pump body 110 comprises intake apertures 111, output channels 112, eccentric piston guide 113, mounting holes 114, and O-ring grooves 115, 116 and 117. Intake apertures 111 have relatively small diameters (typically about 2mm); however, since it normally takes longer to expel the lubrication out of the pump than it does to draw it in, the output channels 112 preferably have a larger "bended oval" shape.
Circular rotor 120, best illustrated in Figures 5A - 5D, comprises a central aperture 121 configured to cooperate with an output shaft of electrical motor 80 so that rotor 120 may be driven by electrical motor 80, cavity 123 (for receiving magnet 122) near the outer edge of the surface of the rotor 120 that is positioned adjacent pump cover 140, and a plurality of apertures 124 in the circumferential edge of rotor 120 that communicate via radially-oriented piston 3627606.1 chambers 126 with openings 125 in the surface of the rotor 120 that is positioned adjacent pump body 110.
With reference to Figures 4A and 4B, pistons 130 comprise notches 131 that cooperate with eccentric piston guide 113 of pump body 110 during the rotation of rotor 120, causing pistons 130 to oscillate within piston chambers 126. Pistons 130 may also comprise O-rings 132. The shape of eccentric piston guide 113 is selected such that each of the plurality of pistons 130 is essentially retracted into its corresponding piston chamber 126 when corresponding opening 125 slides over an area on pump body 110 where there are no intake apertures 111 or output channels 112 so that the opening 125 becomes virtually plugged. As the rotor 120 continues to rotate, the piston 130 is then drawn outwards to generate a vacuum inside piston chamber 126 before opening 125 slides over an intake aperture 111. In this way, as soon as opening 125 reaches intake aperture 111, lubrication substance is immediately drawn into piston chamber 126. The lubrication substance is then expelled from piston chamber 126 in a corresponding way when opening 125 reaches and passes over the "bended oval" output channel 112.
Pump cover 140, illustrated in Figures 6A and 6B, comprises mounting holes 141 that correspond mounting holes 114 of pump body 110, and a magnet sensor 142 for detecting when magnet 122 passes by on each rotation of rotor 120, and sending rotation counts to the circuit board 70. Pump 100 always pumps the same amount of substance for the same number of rotations, so the dispense rate of the pump 100 is controlled by setting number of rotations per work cycle and work cycle intervals. Circuit board 70 may be programmed via associated input buttons to control activation of electrical motor 80 and the lubricant dispense rate, and provides feedback via the associated output display about the state of the AVSADD and any errors. The electrical motor 80 may be powered by DC power pack or by external DC power supply. The speed of pump rotation is preferably relatively slow (between 16- 50 RPM) because rotation speeds outside of this range decrease pump efficiency.
Pump 100 is assembled together tightly, such that a distance of only a few microns exists between the rotor 120 and the pump body 110. This enables only a thin lubrication layer to penetrate in, which serves two functions. Firstly, it lubricates the pump 110 components and 3627606.1 increases the durability thereof, and secondly, it acts as vacuum sealing and therefore increases the efficiency of the pump 100.
Although various embodiments of the invention are disclosed herein many adaptation and modifications may be made within the scope of the invention. Such modifications include the substitution of known equivalents for any aspects of the invention in order to achieve the same results substantially in the same way. For example, the lubrication chamber could be changed in such a way that allows for refilling of the lubrication substance by a regular grease gun. Or lubricator chamber could be placed on the bottom part of the unit with single outlet coming through it in order to accommodate needs for a single point unit. The world "comprising" is used herein as an open-ended terms, substantially equivalent to the phrase "including, but not limited to", and the world "comprises" has a corresponding meaning. As used herein, the singular forms "a", "an", "the", "have" and etc include plural referents unless the context clearly dictates otherwise.
3627606.1
Technical Field The presently disclosed subject matter relates to automatic dispensers for viscid substances such as lubricating grease.
Background Existing automatic lubricators driven by, for example, compressed air, electrical motors, electro-chemical gas generation, and compressed screws are known in the prior art. By way of example, published Canadian patent application no. 2,322,056 to the present inventor describes a Radial High Viscid Substance Actuator for the relocation of highly viscid substances such as slurries or lubricating grease from a storage chamber to a mechanical working area.
All prior known portable automatic lubricators, however, require the user to utilize a separate distribution block in order to distribute lubricant to more than one lubrication point at the same time. If the feed line between the lubricator and distribution block becomes blocked, all of the lubrication points serviced by the distribution block will simultaneously be affected. There accordingly remains a need for a motor driven portable automatic lubricator that can reliably deliver high viscosity lubricants in remote areas in low temperatures, and that can be powered by a low voltage portable power supply.
Summary Provided herein is a pumping mechanism that can generate relatively high pressure (of up to about 2000 psi) using a small, low voltage geared DC motor, and a portable automatic lubricator for single or multi-point lubrication that includes a built-in distribution block. Since the distribution block forms part of the lubricator itself, lubricant will continue to be delivered even if one or more outlets become blocked, thereby enhancing reliability (particularly in applications where redundant lubricant lines are used to service a given lubrication point). In some 3627606.1 embodiments, the lubricator utilizes a brushless motor and sealed circuitry in order to further enhance reliability and safety.
Brief Description of the Drawings For a fuller understanding of the nature and advantages of the disclosed subject matter, as well as the preferred mode of use thereof, reference should be made to the following detailed description, read in conjunction with the accompanying drawings. In the following drawings, like reference numerals designate like or similar parts or steps.
Figure 1 A is a side perspective view of an Automatic Viscid Substance Actuator, Dispenser and Distributor ("AVSADD") in accordance with an embodiment of the disclosed subject matter;
Figure lB is a side elevational view of the AVSADD of Figure 1;
Figure 1 C is a vertical cross-sectional view of the AVSADD of Figure 1, taken along line A - A
of Figure 2;
Figure 1D is an exploded side elevational view of the AVSADD of Figure 1;
Figure 2A is a bottom perspective view of the intake/distribution plate of the AVSADD of Figure 1;
Figure 2B is a bottom plan view of the intake/distribution plate of the AVSADD
of Figure 1;
Figure 2C is a top plan view of the intake/distribution plate of the AVSADD of Figure 1;
Figure 2D is a horizontal cross-sectional view of the intake/distribution plate of the AVSADD of Figure 1;
Figure 3A is a bottom perspective view of the pump body of the AVSADD of Figure 1;
Figure 3B is a bottom plan view of the pump body of the AVSADD of Figure 1;
Figure 3C is a top plan view of the pump body of the AVSADD of Figure 1;
3627606.1 Figure 4A is bottom plan view of the pump body shown partially assembled and including the rotor and pistons of the AVSADD of Figure 1;
Figure 4B is bottom plan view of the pump body of shown partially assembled and with the rotor and pistons of the AVSADD of Figure 1 shown in horizontal cross-section;
Figure 5A is a bottom perspective view of the rotor of the AVSADD of Figure 1;
Figure 5B is a top perspective view of the rotor of the AVSADD of Figure 1;
Figure 5C is a horizontal cross-sectional view of the rotor of the AVSADD of Figure 1;
Figure 5D is a vertical cross-sectional view of the rotor of the AVSADD of Figure 1;
Figure 6A is a bottom perspective view of the pump cover of the AVSADD of Figure 1; and, Figure 6B is a bottom plan view of the pump cover of the AVSADD of Figure 1.
Detailed Description of Specific Embodiments Referring to Figure 1, a portable automatic lubricator for single or multi-point lubrication that may be referred to as an "Automatic Viscid Substance Actuator, Dispenser and Distributor"
("AVSADD") is generally designated with reference numeral 1. The AVSADD
generally comprises an intake/distribution plate 10, lubricant storage chamber 20, storage chamber cap 30, optional replaceable storage chamber cartridge 40, optional cartridge piston 50 (for protection of stored lubricant from moisture and dust), lower protective cover 60, electronic circuit board with input buttons and output display 70, electrical motor 80, battery pack 90, and pump 100. All of the mechanical and electronic components of the AVSADD 1 are located within lower protective cover 60, and are separated from the lubricant storage chamber 20 (and any lubricant stored therein) by intake/distribution plate 10.
Cylindrical lubricant storage chamber 20 and (where used) optional replaceable storage chamber cartridge 40 are preferably constructed of a clear material to facilitate inspection of stored lubricant levels and contamination. In some embodiments, liquid lubricant may be poured directly into storage chamber 20 and secured therein with cap 30 by turning the cap 30 in a 3627606.1 clockwise direction to engage conventional complementary notches and grooves (not shown) on the chamber 20 and cap 30 to lock them together. To seal between storage chamber 20 and intake/distribution plate 10, a conventional O-ring 21 may be used.
Where a more viscid lubricant is to be dispensed, use of the replaceable storage chamber cartridge 40 is preferred. Cartridge 40 has an open top and a flat bottom with a cylindrical nozzle sized to mate with the intake cavity of intake/distribution plate 10 (see Figure 2C), and is covered with cartridge piston 50 to protect the stored lubricant from moisture and dust. In most embodiments, piston 50 is drawn downward through the cartridge 40 by the vacuum created by the suction of lubricant from the cartridge 40 by pump 100. However, in applications where a particularly viscid lubricant is to be pumped, a conventional spring (not shown) may be placed between the piston 50 and cap 30 to assist in pumping.
With reference to Figures 1 and 2, intake/distribution plate 10 acts as a base for the attachment by conventional means of storage chamber 20 (as discussed above), for the attachment of pump 100, electrical motor 80, and lower protective cover 60, and for the optional attachment of the entire AVSADD to a wall or to some other apparatus (such as, perhaps, the one being lubricated by the AVSADD). Intake/distribution plate 10 may be constructed from metal or from any other suitable material that is strong enough to support the combined weight of the AVSADD
apparatus and any lubrication substance contained therein - typically at least about 2 kg.
Intake/distribution plate 10 further comprises a system of ports and internal distribution channels (see generally Figure 2D and the discussion below) through which lubricant is distributed by the AVSADD apparatus.
Figures 2A and 2B illustrate the underside (i.e. the pump side) of intake/distribution plate 10, and show intake ports 11, outlet ports 12 that communicate with tapered exits 13 via internal distribution channels 14 (see Figure 2D), pump/motor attachment holes 15, lower cover attachment holes 16, mounting flange 17, and AVSADD mounting holes 18. Figure illustrates the top side (i.e. the storage chamber side) of the intake/distribution plate 10, and shows intake ports 11, pump/motor attachment holes 15, mounting flange 17, AVSADD
mounting holes 18, and storage chamber mounting holes 19. As is best seen in Figure 2D, internal distribution channels 14 extend between outlet ports 12 and exits 13.
In use, lubricant is 3627606.1 drawn by pump 100 through intake ports 11, and then forced out through exits 13 via outlet ports 12 and internal distribution channels 14.
Figures 2A-2D illustrate four sets of each of intake ports 11, outlet ports 12, internal distribution channels 14 and exits 13 for the sake of clarity. However, it will be understood that an intake/distribution plate 10 may comprise any number between 1 - 8 of these sets of ports and channels (thereby permitting a user to directly supply as many as eight separate points with lubrication at one time) in an AVSADD apparatus that remains small enough to be driven by a small, low voltage geared DC motor.
Figures 3 - 6 detail the components and functioning of pump 100, which as previously described is mounted to the underside of intake/distribution plate 10, between the intake/distribution plate and the electrical motor 80. In general, pump 100 sucks lubricant from the lubricant storage chamber 20 (or optionally from replaceable cartridge 40), through the intake ports 11 of intake/distribution plate 10, and pumps the lubricant out through tapered exits 13 via outlet ports 12 and internal distribution channels 14 of intake/distribution plate 10. Pump 10 generally comprises pump body 110, circular rotor 120, a plurality of pistons 130, and pump cover 140.
The number of pistons 130 in pump 10 may be odd or even, but in order to maximize pumping efficiency, must number at least one more than the number of intake apertures 111. In this way, there is no idle time in the pump cycle, and that at any given moment, one or more pistons are ejecting lubrication substance in to the pump or pushing it out.
As is best seen in Figures 3A - 3C, pump body 110 comprises intake apertures 111, output channels 112, eccentric piston guide 113, mounting holes 114, and O-ring grooves 115, 116 and 117. Intake apertures 111 have relatively small diameters (typically about 2mm); however, since it normally takes longer to expel the lubrication out of the pump than it does to draw it in, the output channels 112 preferably have a larger "bended oval" shape.
Circular rotor 120, best illustrated in Figures 5A - 5D, comprises a central aperture 121 configured to cooperate with an output shaft of electrical motor 80 so that rotor 120 may be driven by electrical motor 80, cavity 123 (for receiving magnet 122) near the outer edge of the surface of the rotor 120 that is positioned adjacent pump cover 140, and a plurality of apertures 124 in the circumferential edge of rotor 120 that communicate via radially-oriented piston 3627606.1 chambers 126 with openings 125 in the surface of the rotor 120 that is positioned adjacent pump body 110.
With reference to Figures 4A and 4B, pistons 130 comprise notches 131 that cooperate with eccentric piston guide 113 of pump body 110 during the rotation of rotor 120, causing pistons 130 to oscillate within piston chambers 126. Pistons 130 may also comprise O-rings 132. The shape of eccentric piston guide 113 is selected such that each of the plurality of pistons 130 is essentially retracted into its corresponding piston chamber 126 when corresponding opening 125 slides over an area on pump body 110 where there are no intake apertures 111 or output channels 112 so that the opening 125 becomes virtually plugged. As the rotor 120 continues to rotate, the piston 130 is then drawn outwards to generate a vacuum inside piston chamber 126 before opening 125 slides over an intake aperture 111. In this way, as soon as opening 125 reaches intake aperture 111, lubrication substance is immediately drawn into piston chamber 126. The lubrication substance is then expelled from piston chamber 126 in a corresponding way when opening 125 reaches and passes over the "bended oval" output channel 112.
Pump cover 140, illustrated in Figures 6A and 6B, comprises mounting holes 141 that correspond mounting holes 114 of pump body 110, and a magnet sensor 142 for detecting when magnet 122 passes by on each rotation of rotor 120, and sending rotation counts to the circuit board 70. Pump 100 always pumps the same amount of substance for the same number of rotations, so the dispense rate of the pump 100 is controlled by setting number of rotations per work cycle and work cycle intervals. Circuit board 70 may be programmed via associated input buttons to control activation of electrical motor 80 and the lubricant dispense rate, and provides feedback via the associated output display about the state of the AVSADD and any errors. The electrical motor 80 may be powered by DC power pack or by external DC power supply. The speed of pump rotation is preferably relatively slow (between 16- 50 RPM) because rotation speeds outside of this range decrease pump efficiency.
Pump 100 is assembled together tightly, such that a distance of only a few microns exists between the rotor 120 and the pump body 110. This enables only a thin lubrication layer to penetrate in, which serves two functions. Firstly, it lubricates the pump 110 components and 3627606.1 increases the durability thereof, and secondly, it acts as vacuum sealing and therefore increases the efficiency of the pump 100.
Although various embodiments of the invention are disclosed herein many adaptation and modifications may be made within the scope of the invention. Such modifications include the substitution of known equivalents for any aspects of the invention in order to achieve the same results substantially in the same way. For example, the lubrication chamber could be changed in such a way that allows for refilling of the lubrication substance by a regular grease gun. Or lubricator chamber could be placed on the bottom part of the unit with single outlet coming through it in order to accommodate needs for a single point unit. The world "comprising" is used herein as an open-ended terms, substantially equivalent to the phrase "including, but not limited to", and the world "comprises" has a corresponding meaning. As used herein, the singular forms "a", "an", "the", "have" and etc include plural referents unless the context clearly dictates otherwise.
3627606.1
Claims (3)
1. An automatic dispenser for distribution of a viscid substance, the automatic dispenser comprising, in combination, a radial viscid substance actuator pump and an intake/distribution plate;
the radial viscid substance actuator pump comprising a pump body, a rotor and a plurality of pistons;
the pump body comprising an eccentric piston guide and a plurality of spaced-apart viscid substance intake apertures and output channels oriented on the same side of the pump body;
the rotor comprising a central aperture dimensioned for cooperation with the output shaft of a motor and a plurality of radially-oriented piston chambers in fluid communication with a plurality of axially-oriented openings; and a piston in each of said plurality of radially-oriented piston chambers, each of said pistons comprising means for cooperating with the eccentric piston guide of the pump body;
wherein said eccentric piston guide causes, in operation when said rotor is driven by said motor, each of said pistons to oscillate radially and thereby to alternately draw said viscid substance into and expel said viscid substance from each of said radially-oriented piston chambers via the axially-oriented openings of the rotor and via the intake apertures and output channels of the pump body;
and wherein the intake/distribution plate comprises a plurality of intake ports and outlet ports in fluid communication with the of intake apertures and output channels of the radial viscid substance actuator pump, and a plurality of distribution channels in fluid communication with the output channels for distribution of the viscid substance pumped by the radial viscid substance actuator pump, such that, in operation, the automatic dispenser simultaneously distributes the viscid substance through each of said plurality of distribution channels.
the radial viscid substance actuator pump comprising a pump body, a rotor and a plurality of pistons;
the pump body comprising an eccentric piston guide and a plurality of spaced-apart viscid substance intake apertures and output channels oriented on the same side of the pump body;
the rotor comprising a central aperture dimensioned for cooperation with the output shaft of a motor and a plurality of radially-oriented piston chambers in fluid communication with a plurality of axially-oriented openings; and a piston in each of said plurality of radially-oriented piston chambers, each of said pistons comprising means for cooperating with the eccentric piston guide of the pump body;
wherein said eccentric piston guide causes, in operation when said rotor is driven by said motor, each of said pistons to oscillate radially and thereby to alternately draw said viscid substance into and expel said viscid substance from each of said radially-oriented piston chambers via the axially-oriented openings of the rotor and via the intake apertures and output channels of the pump body;
and wherein the intake/distribution plate comprises a plurality of intake ports and outlet ports in fluid communication with the of intake apertures and output channels of the radial viscid substance actuator pump, and a plurality of distribution channels in fluid communication with the output channels for distribution of the viscid substance pumped by the radial viscid substance actuator pump, such that, in operation, the automatic dispenser simultaneously distributes the viscid substance through each of said plurality of distribution channels.
2. The automatic dispenser of claim 1, wherein the number of pistons in the radial viscid substance actuator pump is at least one more than the number of intake apertures in the pump body.
3. The automatic dispenser of claim 1, wherein each of the output apertures of the radial viscid substance actuator pump have a bended oval shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2635788A CA2635788C (en) | 2008-05-26 | 2008-05-26 | Automatic viscid substance actuator, dispenser and distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2635788A CA2635788C (en) | 2008-05-26 | 2008-05-26 | Automatic viscid substance actuator, dispenser and distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2635788A1 CA2635788A1 (en) | 2008-11-25 |
| CA2635788C true CA2635788C (en) | 2012-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2635788A Active CA2635788C (en) | 2008-05-26 | 2008-05-26 | Automatic viscid substance actuator, dispenser and distributor |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2635788C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8783418B2 (en) | 2004-05-06 | 2014-07-22 | Natasa Enterprises Ltd | Automatic motor driven in-line piston pump lubricator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029164A1 (en) | 2011-08-30 | 2013-03-07 | Stephania Holdings Inc. | Methods of controlling a lubricator apparatus, methods of communication, and apparatuses and systems |
-
2008
- 2008-05-26 CA CA2635788A patent/CA2635788C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8783418B2 (en) | 2004-05-06 | 2014-07-22 | Natasa Enterprises Ltd | Automatic motor driven in-line piston pump lubricator |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2635788A1 (en) | 2008-11-25 |
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