US20150377224A1 - Single piston foundation bag-in-box (bib) pump - Google Patents
Single piston foundation bag-in-box (bib) pump Download PDFInfo
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- US20150377224A1 US20150377224A1 US14/733,481 US201514733481A US2015377224A1 US 20150377224 A1 US20150377224 A1 US 20150377224A1 US 201514733481 A US201514733481 A US 201514733481A US 2015377224 A1 US2015377224 A1 US 2015377224A1
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- gas
- pressure
- stroke
- suction
- assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
- F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/22—Other positive-displacement pumps of reciprocating-piston type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/053—Pumps having fluid drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/053—Pumps having fluid drive
- F04B45/0536—Pumps having fluid drive the actuating fluid being controlled by one or more valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
- F04B53/1092—Valves; Arrangement of valves inlet and outlet valve forming one unit and one single element forming both the inlet and outlet closure member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
- F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
- F04B9/127—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
- F04B43/0736—Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
- F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
- F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
- F04B9/135—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting elastic-fluid motors, each acting in one direction
Definitions
- the present invention relates to a pump; and more particularly to a pump for controlling the provisioning of syrup from a syrup bag to a fluid dispenser.
- FIG. 1 shows an existing product offering having a spool type gas valve that has been in existence for more than 15 years.
- the present invention provide a single piston diaphragm pump that provides a solution to the aforementioned problem in the art in terms of cost and space.
- the present invention may include, or take the form of, apparatus such as a pump featuring a liquid housing configured with a liquid chamber in combination a gas housing configured with a gas chamber.
- the liquid chamber may be configured with a single piston/diaphragm assembly arranged therein to respond to a suction stroke and draw liquid into the liquid chamber, and configured to respond to a pressure stroke and provide the liquid from the liquid chamber.
- the gas housing may include a slide valve assembly that fluidicly communicates with a first gas chamber and a second gas chamber.
- the slide valve assembly may be configured to respond to a suction-to-pressure stroke force at a conclusion of the suction stroke, change from a suction stroke state to a pressure stroke state, provide gas from the first gas chamber to the second gas chamber through the slide valve assembly, and provide the pressure stroke so the liquid passes from the liquid chamber.
- the slide valve assembly may also be configured to respond to a pressure-to-suction stroke force at a corresponding conclusion of the pressure stroke, change from the pressure stroke state to the suction stroke state, provide gas from the second gas chamber to atmosphere through the slide valve assembly, and provide the suction stroke so the liquid is drawn into the liquid chamber.
- the present invention may include one or more of the following features:
- the slide valve assembly may include a block or housing assembly and an actuator assembly; the block or housing assembly may include a slide valve housing configured with a cavity, recess or channel; and the actuator assembly may include a slide block configured to slide in the cavity, recess or channel of the slide valve housing, an actuator combination having a slide spring arranged between a lower retainer and an upper retainer, and a yoke configured with an opening to contain the actuator combination under compression and also configured to couple to the slide valve housing allowing the slide valve assembly to change between the pressure stroke state and the suction stroke state respectively in response to the suction-to-pressure force and the pressure-to-suction force.
- the actuator assembly may be configured to slide, rotate or translate in relation to the block or housing assembly in response to the suction-to-pressure force and the pressure-to-suction force.
- the first gas chamber may be configured to receive the gas via a gas-in fitting in response to the suction-to-pressure force at the conclusion of the suction stroke.
- the valve slide assembly may be configured to provide the gas via a gas exhaust fitting to atmosphere in response to the pressure-suction force at the conclusion of the pressure stroke.
- valve slide assembly may be positioned so that gas is routed from the first gas chamber thru the slide valve assembly to the second gas chamber.
- valve slide assembly may be positioned so that gas is routed from the second gas chamber thru the slide valve assembly to a gas exhaust fitting, then to atmosphere.
- the single piston/diaphragm assembly may be configured to respond to the gas filling the second gas chamber, provide the pressure stroke causing a displacement of the liquid from the liquid chamber through an outlet fitting, and cause the slide valve assembly to change from the pressure stroke state to the suction stroke state at the conclusion of the pressure stroke.
- the single piston/diaphragm assembly may be configured to respond to the gas being exhausted from the second chamber, provide the suction stroke, draw the liquid through a liquid inlet fitting and into the liquid chamber, and cause the slide valve assembly to change from the suction stroke state to the pressure stroke state at the conclusion of the suction stroke.
- the single piston/diaphragm assembly may include a spring configured to respond to the pressure stroke, compress storing energy for the suction stroke, and provide the suction stroke at the corresponding conclusion of the pressure stroke.
- the single piston/diaphragm assembly may be configured between the second gas chamber and the liquid chamber to respond to the suction stroke and move so as to expand the volume of the liquid chamber drawing fluid into the liquid chamber.
- the slide valve assembly may include at least one component made of ceramic.
- the slide block may be made of ceramic.
- the single piston/diaphragm assembly may include a piston and a diaphragm, the piston being coupled to the slide valve assembly via a piston shaft/actuator slide assembly, and the diaphragm being coupled between the gas housing and the liquid housing.
- Possible applications may include, e.g., bag-in-box fluid transfer, bottled water dispensers, coffee machine auto-refill, beverage dispensers, general fluid transfer, water pressure systems, or chemical spraying systems.
- FIGS. 1-7B which are not necessarily drawn to scale, as follows:
- FIG. 1 is a diagram of a single piston fountain Bag-in-Box (BIB) pump that is known in the art.
- FIG. 2A is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying a major component layout, according to some embodiments of the present invention.
- BIOB Bag-in-Box
- FIG. 2B is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying porting and fluid areas, according to some embodiments of the present invention.
- BIOB Bag-in-Box
- FIG. 3 is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying fluid flow (e.g., gas and liquid flow) in relation to a pressure stroke, according to some embodiments of the present invention.
- fluid flow e.g., gas and liquid flow
- FIG. 4 is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying fluid flow (e.g., gas and liquid flow) in relation to a suction stroke, according to some embodiments of the present invention.
- fluid flow e.g., gas and liquid flow
- FIG. 5 includes FIGS. 5A to 5D , where FIG. 5A is a top perspective view of the slide valve assembly, FIG. 5B is a bottom plan view of the slide valve assembly in FIG. 5A , FIG. 5C is a cross-section view along lines A-A of the slide valve assembly show in FIG. 5B , and FIG. 5D is a cross-section view along lines B-B of the slide valve assembly show in FIG. 5B , all according to some embodiments of the present invention.
- FIG. 6 includes FIGS. 6A to 6C , where FIG. 6A is a top perspective view of the block or housing assembly, FIG. 6B is a bottom plan view of the block or housing assembly in FIG. 6A , and FIG. 6C is a cross-section view along lines A-A of the block or housing assembly show in FIG. 6B , all according to some embodiments of the present invention.
- FIG. 7A is a top perspective view of the block or housing assembly
- FIG. 7B is a cross-sectional view of the block or housing assembly in FIG. 7A , all according to some embodiments of the present invention.
- FIGS. 2A , 2 B, 3 and 4 show the present invention in the form of a pump generally indicated as 10 .
- FIG. 2 A A first figure.
- FIG. 2A shows the major component layout of the pump 10 that includes the gas housing 20 and a liquid housing 30 .
- a slide valve assembly 22 configured therein, a gas housing cover 24 , and a piston shaft/actuator slide assembly 26 .
- the slide valve assembly 22 may be configured with a block or housing assembly 22 a and an actuator assembly 22 b .
- the block or housing assembly 22 a may include a slide valve housing 22 a 1 , a block plate 22 a 2 and a gasket block 22 a 3 , as labeled in FIG. 2A .
- the block or housing assembly 22 a may also includes a gas opening 22 a 4 , a gas opening 22 a 4 ′, a gas openings 22 a 5 , a gas openings 22 a 5 ′, a gas opening 22 a 6 , a gas opening 22 a 6 ′, and a gas channel or passageway 22 a 7 , a gas channel or passageway 22 a 7 ′, which are all shown and labeled in relation to FIGS. 5 and 6 .
- the actuator assembly 22 b may include a slide block 22 b 1 , a lower retainer 22 b 2 , a slide spring 22 b 3 , an upper retainer 22 b 4 and a yoke 22 b 5 , which are all shown in further detail in FIG. 5 .
- reference label 22 b 8 indicates where the application of a lubricant, such as a silicon lubrication, may be applied.
- the gas housing 20 may also be configured with two gas chamber 21 a , 21 b , which are labeled and identified in FIG. 2B .
- the piston/actuator slide assembly 26 may include a piston shaft coupling member 26 a that slides along an actuator slide 26 b as the slide valve assembly 22 slides back and forth (i.e., from left to right) when moving from the pressure stroke ( FIG. 3 ) to the suction stroke ( FIG. 4 ), and vice versa.
- the actuator slide 26 b may be mounting between suitable portions of the gas housing 20 , e.g., consistent with that shown in FIGS. 2A , 2 B, 3 and 4 .
- a piston/diaphragm assembly 32 inside the liquid housing 30 , the following components may be arranged: a piston/diaphragm assembly 32 , a piston shaft 34 , a spring 36 and check valves 38 a , 38 b .
- the piston/diaphragm assembly 32 may include a piston 32 a and a diaphragm 32 b , as labeled in FIG. 2A .
- the diaphragm 32 b is shown in FIGS. 2A , 2 B and 3 , but not shown in FIG. 4 ).
- the piston shaft 34 may be coupled on one end to the piston support member 26 a , and may be coupled on the other end to the piston 32 a , as shown.
- the diaphragm 32 b may be coupled between the gas housing 20 and the liquid housing 30 , as shown in FIGS. 2A , 2 B and 3 .
- a slipper seal 28 may be configured between part 20 a of the gas housing 20 and the piston shaft 34 between gas chambers 21 a , 21 b (e.g., see FIG. 2A ).
- FIG. 2B shows the porting and fluid areas of the pump 10 that includes a gas exhaust fitting 60 , a gas-in fitting 62 , a syrup outlet fitting 64 and a syrup suction fitting 66 .
- FIG. 2B also shows and identifies the gas chamber 21 a (No. 1), the gas chamber 21 b (No. 2) and a liquid chamber 31 a.
- FIG. 3 The Pressure Stroke
- FIG. 3 shows the pump 10 during a pressure stroke, i.e. when gas flows into the gas chamber 20 causing liquid to flow out of the liquid chamber 31 a of the pump 10 .
- FIG. 3 shows steps of the pressure stroke, as follows:
- FIG. 4 The Suction Stroke
- FIG. 4 shows the pump 10 during a suction stroke, i.e. gas flowing out from the pump 10 and liquid flowing into of the pump 10 .
- FIG. 4 shows steps of the suction stroke, as follows:
- the slide spring 22 b 3 is configured under compression between the lower and upper retainers 22 b 2 and 22 b 4 , and in relation to the sliding block 22 a 1 and the yoke 22 b 5 , e.g., when in either the position in the pressure stroke ( FIG. 3 ) or the position in the suction stroke ( FIG. 4 ).
- the slide spring 22 b 3 is further compressed, then relaxes once the actuator assembly 22 b has fully rotated or translated back to the position in the other position.
- the slide spring 22 b 3 provides the resilience or elasticity to allow the rotation or translation back and forth between the positions in FIGS. 3 and 4 .
- the slide valve assembly 22 may include one or more components made of ceramic.
- the slide block or gas valve 22 b 1 may include, or take the form of, a ceramic slide type gas valve.
- a ceramic may take the form of a product or an article of manufacture made from a nonmetallic material by firing at a high temperature, such as porcelain.
- porcelain may be made from, or consistent of, kaolin, quartz and/or feldspar that is fired at high temperatures.
- the scope of the invention is not intended to be limited to any particular type or kind of ceramic or ceramic material that is now known or later developed in the art.
- FIGS. 7A and 7B show the gas opening 22 a 5 ′, the gas opening 22 a 6 ′ and the gas channel 22 a 7 ′. These openings and channel are closed off in a single pump configuration like that shown in FIGS. 2A , 2 B 3 and 4 , but and may be used in a two pump configuration.
- either the slide block 22 b 1 blocks the gas opening 22 a 5 ′ when the slide block 22 b 1 is in the positions in FIGS. 3 and 4
- the gas opening 22 a 6 ′ is blocked off, e.g., with a cap (not shown).
- possible applications may include: BIB pumping, transfer pumping, or beverage dosing.
- the present invention may also be used in, or form part of, or used in conjunction with, other fluid handling applications.
- the scope of the invention is also not intended to be limited to being implemented in any particular type or kind of pump either now known or later developed in the future, and may include other diaphragm pumps, etc.
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- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
- This application claims benefit to provisional patent application Ser. No. 62/008,782 (911-005.074-1//F-FLJ-X0010), filed 6 Jun. 2014, which is all incorporated by reference in their entirety.
- 1. Field of Invention
- The present invention relates to a pump; and more particularly to a pump for controlling the provisioning of syrup from a syrup bag to a fluid dispenser.
- 2. Description of Related Art
- Pumps are known in the art that are air-driven double piston/diaphragm pumps such as the model G & N series BIB pumps that are distributed by the assignee of the present invention. Problems and shortcomings of these known pumps include that they require more parts and more space than is otherwise needed to provide the required output or pumping. For the required output (which is relatively small), these pumps are over rated and therefore not an ideal solution in terms of cost and space.
FIG. 1 shows an existing product offering having a spool type gas valve that has been in existence for more than 15 years. - There is a need in the industry to provide a solution to the aforementioned problem in terms of cost and space.
- The present invention provide a single piston diaphragm pump that provides a solution to the aforementioned problem in the art in terms of cost and space.
- By way of example, and according to some embodiments, the present invention may include, or take the form of, apparatus such as a pump featuring a liquid housing configured with a liquid chamber in combination a gas housing configured with a gas chamber.
- The liquid chamber may be configured with a single piston/diaphragm assembly arranged therein to respond to a suction stroke and draw liquid into the liquid chamber, and configured to respond to a pressure stroke and provide the liquid from the liquid chamber.
- The gas housing may include a slide valve assembly that fluidicly communicates with a first gas chamber and a second gas chamber. The slide valve assembly may be configured to respond to a suction-to-pressure stroke force at a conclusion of the suction stroke, change from a suction stroke state to a pressure stroke state, provide gas from the first gas chamber to the second gas chamber through the slide valve assembly, and provide the pressure stroke so the liquid passes from the liquid chamber. The slide valve assembly may also be configured to respond to a pressure-to-suction stroke force at a corresponding conclusion of the pressure stroke, change from the pressure stroke state to the suction stroke state, provide gas from the second gas chamber to atmosphere through the slide valve assembly, and provide the suction stroke so the liquid is drawn into the liquid chamber.
- The present invention may include one or more of the following features:
- The slide valve assembly may include a block or housing assembly and an actuator assembly; the block or housing assembly may include a slide valve housing configured with a cavity, recess or channel; and the actuator assembly may include a slide block configured to slide in the cavity, recess or channel of the slide valve housing, an actuator combination having a slide spring arranged between a lower retainer and an upper retainer, and a yoke configured with an opening to contain the actuator combination under compression and also configured to couple to the slide valve housing allowing the slide valve assembly to change between the pressure stroke state and the suction stroke state respectively in response to the suction-to-pressure force and the pressure-to-suction force.
- The actuator assembly may be configured to slide, rotate or translate in relation to the block or housing assembly in response to the suction-to-pressure force and the pressure-to-suction force.
- The first gas chamber may be configured to receive the gas via a gas-in fitting in response to the suction-to-pressure force at the conclusion of the suction stroke.
- The valve slide assembly may be configured to provide the gas via a gas exhaust fitting to atmosphere in response to the pressure-suction force at the conclusion of the pressure stroke.
- During the pressure stroke, the valve slide assembly may be positioned so that gas is routed from the first gas chamber thru the slide valve assembly to the second gas chamber.
- During the suction stroke, the valve slide assembly may be positioned so that gas is routed from the second gas chamber thru the slide valve assembly to a gas exhaust fitting, then to atmosphere.
- The single piston/diaphragm assembly may be configured to respond to the gas filling the second gas chamber, provide the pressure stroke causing a displacement of the liquid from the liquid chamber through an outlet fitting, and cause the slide valve assembly to change from the pressure stroke state to the suction stroke state at the conclusion of the pressure stroke.
- The single piston/diaphragm assembly may be configured to respond to the gas being exhausted from the second chamber, provide the suction stroke, draw the liquid through a liquid inlet fitting and into the liquid chamber, and cause the slide valve assembly to change from the suction stroke state to the pressure stroke state at the conclusion of the suction stroke.
- The single piston/diaphragm assembly may include a spring configured to respond to the pressure stroke, compress storing energy for the suction stroke, and provide the suction stroke at the corresponding conclusion of the pressure stroke.
- The single piston/diaphragm assembly may be configured between the second gas chamber and the liquid chamber to respond to the suction stroke and move so as to expand the volume of the liquid chamber drawing fluid into the liquid chamber.
- The slide valve assembly may include at least one component made of ceramic. By way of example, the slide block may be made of ceramic.
- The single piston/diaphragm assembly may include a piston and a diaphragm, the piston being coupled to the slide valve assembly via a piston shaft/actuator slide assembly, and the diaphragm being coupled between the gas housing and the liquid housing.
- Possible applications may include, e.g., bag-in-box fluid transfer, bottled water dispensers, coffee machine auto-refill, beverage dispensers, general fluid transfer, water pressure systems, or chemical spraying systems.
- The drawing includes
FIGS. 1-7B , which are not necessarily drawn to scale, as follows: -
FIG. 1 is a diagram of a single piston fountain Bag-in-Box (BIB) pump that is known in the art. -
FIG. 2A is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying a major component layout, according to some embodiments of the present invention. -
FIG. 2B is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying porting and fluid areas, according to some embodiments of the present invention. -
FIG. 3 is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying fluid flow (e.g., gas and liquid flow) in relation to a pressure stroke, according to some embodiments of the present invention. -
FIG. 4 is diagram of a cross-section of a single piston fountain Bag-in-Box (BIB) pump showing and identifying fluid flow (e.g., gas and liquid flow) in relation to a suction stroke, according to some embodiments of the present invention. -
FIG. 5 includesFIGS. 5A to 5D , whereFIG. 5A is a top perspective view of the slide valve assembly,FIG. 5B is a bottom plan view of the slide valve assembly inFIG. 5A ,FIG. 5C is a cross-section view along lines A-A of the slide valve assembly show inFIG. 5B , andFIG. 5D is a cross-section view along lines B-B of the slide valve assembly show inFIG. 5B , all according to some embodiments of the present invention. -
FIG. 6 includesFIGS. 6A to 6C , whereFIG. 6A is a top perspective view of the block or housing assembly,FIG. 6B is a bottom plan view of the block or housing assembly inFIG. 6A , andFIG. 6C is a cross-section view along lines A-A of the block or housing assembly show inFIG. 6B , all according to some embodiments of the present invention. -
FIG. 7A is a top perspective view of the block or housing assembly, andFIG. 7B is a cross-sectional view of the block or housing assembly inFIG. 7A , all according to some embodiments of the present invention. - In the drawing, the Figures have reference numerals and lead lines associated with the various elements shown therein. For the sake of reducing clutter in the drawing, and also improving readability when the specification is read in conjunction with the drawing, every Figure does not include every reference numeral and lead line associated with every element shown therein. Moreover, as a person skilled in the art would appreciate, some elements that do not form part of the underlying point of novelty of the present invention are not provided with a reference numeral and lead line.
-
FIGS. 2A , 2B, 3 and 4 show the present invention in the form of a pump generally indicated as 10. -
FIG. 2A shows the major component layout of thepump 10 that includes the gas housing 20 and a liquid housing 30. - By way of example, inside the gas housing 20, the following components may be arranged: a
slide valve assembly 22 configured therein, agas housing cover 24, and a piston shaft/actuator slide assembly 26. Theslide valve assembly 22 may be configured with a block orhousing assembly 22 a and anactuator assembly 22 b. The block orhousing assembly 22 a may include aslide valve housing 22 a 1, ablock plate 22 a 2 and agasket block 22 a 3, as labeled inFIG. 2A . The block orhousing assembly 22 a may also includes agas opening 22 a 4, agas opening 22 a 4′, agas openings 22 a 5, agas openings 22 a 5′, agas opening 22 a 6, agas opening 22 a 6′, and a gas channel orpassageway 22 a 7, a gas channel orpassageway 22 a 7′, which are all shown and labeled in relation toFIGS. 5 and 6 . - As labeled in
FIG. 2A , theactuator assembly 22 b may include aslide block 22b 1, alower retainer 22b 2, aslide spring 22 b 3, anupper retainer 22 b 4 and ayoke 22 b 5, which are all shown in further detail inFIG. 5 . (By way of example,reference label 22 b 8 (FIG. 5D ) indicates where the application of a lubricant, such as a silicon lubrication, may be applied.) The gas housing 20 may also be configured with twogas chamber FIG. 2B . The piston/actuator slide assembly 26 may include a pistonshaft coupling member 26 a that slides along anactuator slide 26 b as theslide valve assembly 22 slides back and forth (i.e., from left to right) when moving from the pressure stroke (FIG. 3 ) to the suction stroke (FIG. 4 ), and vice versa. Theactuator slide 26 b may be mounting between suitable portions of the gas housing 20, e.g., consistent with that shown inFIGS. 2A , 2B, 3 and 4. - By way of example, inside the liquid housing 30, the following components may be arranged: a piston/
diaphragm assembly 32, apiston shaft 34, aspring 36 andcheck valves diaphragm assembly 32 may include apiston 32 a and adiaphragm 32 b, as labeled inFIG. 2A . (Thediaphragm 32 b is shown inFIGS. 2A , 2B and 3, but not shown inFIG. 4 ). Thepiston shaft 34 may be coupled on one end to thepiston support member 26 a, and may be coupled on the other end to thepiston 32 a, as shown. Thediaphragm 32 b may be coupled between the gas housing 20 and the liquid housing 30, as shown inFIGS. 2A , 2B and 3. Aslipper seal 28 may be configured betweenpart 20 a of the gas housing 20 and thepiston shaft 34 betweengas chambers FIG. 2A ). -
FIG. 2B shows the porting and fluid areas of thepump 10 that includes a gas exhaust fitting 60, a gas-infitting 62, a syrup outlet fitting 64 and a syrup suction fitting 66.FIG. 2B also shows and identifies thegas chamber 21 a (No. 1), thegas chamber 21 b (No. 2) and aliquid chamber 31 a. -
FIG. 3 shows thepump 10 during a pressure stroke, i.e. when gas flows into the gas chamber 20 causing liquid to flow out of theliquid chamber 31 a of thepump 10. - By way of example,
FIG. 3 shows steps of the pressure stroke, as follows: -
- 1. Gas fills the
first gas chamber 21 a (no. 1) via the gas inlet fitting 62 (FIG. 2B ). - 2. Gas is then routed thru the slide valve assembly 22 (see arrows ps1) from the
first gas chamber 21 a to thesecond gas chamber 21 b (no. 2). In operation, theactuator assembly 22 a is positioned to allow the gas to pass from thegas chamber 21 a (no. 1) to thegas chamber 21 b (no. 2), e.g., via a gas housing passage or channel that may be formed intopart 20 b of gas housing 20 (indicated by the flow using arrow ps1). By way of example, when theslide valve assembly 22 slides, rotates or translates into the position shown inFIG. 3 , theslide block 22b 1 is configured to allow gas to flow from thefirst gas chamber 21 a through thevalve slide housing 22 a 1, through thegas opening 22 a 5 (FIGS. 7A , 7B), through the gas housing passage orchannel 22 a 7 (FIG. 7B ), out gas opening 22 a 6, through the gas housing passage or channel in the gas housing 20, and into thesecond gas chamber 21 b as indicated by arrow ps1. In effect, when theslide block 22b 1 is in the position inFIG. 3 , part of theslide block 22b 1 is blocking the middle gas opening 22 a 4′, so the gas cannot flow through thegas opening 22 a 4′ (FIG. 7A , 7B) and out via thegas opening 22 a 4 (FIG. 5D , 6B) to the gas exhaust fitting 60. - 3. As gas fills the
second gas chamber 21 b (no. 2), pressure acts on the piston/diaphragm 32 (FIG. 2A ) causing it to travel to the right as shown (see arrow ps2). - 4. As the
piston 32 a travels rightward, the liquid contents of theliquid chamber 31 a are displaced through the check valve 28 a and discharged out the liquid/syrup outlet fitting 64. In addition, thespring 36 is compressed storing energy for the suction stroke shown and described in relation toFIG. 4 .
- 1. Gas fills the
-
FIG. 4 shows thepump 10 during a suction stroke, i.e. gas flowing out from thepump 10 and liquid flowing into of thepump 10. By way of example,FIG. 4 shows steps of the suction stroke, as follows: -
- 1. At the end of the pressure stroke, the
slide valve assembly 22 slides, rotates to translates into the position shown inFIG. 4 , theslide block 22b 1 changes state, and the gas in thesecond gas chamber 21 b (no. 2) is routed back thru the gas housing passage or channel in thepart 20 b of the gas housing 20, through the slide valve assembly 22 (see arrow ss1), through thegas opening 22 a 4′ (FIG. 7A or 7B), out thegas opening 22 a 4 (FIG. 5B or 6B) and out the gas exhaust fitting 60, e.g., to atmosphere (as gas flow exhaust, see arrows ss2). In effect, when theslide block 22b 1 is in the position inFIG. 4 , part of theslide block 22b 1 is blocking thegas opening 22 a 5, so gas is not flowing from thesecond gas chamber 21 b back into thefirst gas chamber 21 a. - 2. The pressure in the
second gas chamber 21 b (no. 2) drops quickly to zero and thespring 36 acts on the piston/diaphragm 32 (see arrows ss3) inducing travel leftward. - 3. As the piston/
diaphragm 32 travels leftwards (see arrow ss4), theliquid chamber 31 a is expanded drawing liquid (e.g., syrup) via the syrup suction fitting 66 into theliquid chamber 31 a (see arrow ss5) thru thecheck valve 38 b. - 4. At the conclusion of the suction stroke, then the entire mechanism will change to the pressure stroke (see
FIG. 3 ), i.e., theslide valve assembly 22 slides, rotates or translates into the position shown inFIG. 3 , theslide block 22b 1 changes state back to that shown inFIG. 3C .
- 1. At the end of the pressure stroke, the
- In the
actuator assembly 22 b, theslide spring 22 b 3 is configured under compression between the lower andupper retainers 22 b 2 and 22b 4, and in relation to the slidingblock 22 a 1 and theyoke 22 b 5, e.g., when in either the position in the pressure stroke (FIG. 3 ) or the position in the suction stroke (FIG. 4 ). When theactuator assembly 22 b rotates or translates from the position in the pressure stroke (FIG. 3 ) to the position in the suction stroke (FIG. 4 ), or vice versa, theslide spring 22 b 3 is further compressed, then relaxes once theactuator assembly 22 b has fully rotated or translated back to the position in the other position. In effect, theslide spring 22 b 3 provides the resilience or elasticity to allow the rotation or translation back and forth between the positions inFIGS. 3 and 4 . - By way of example, the
slide valve assembly 22 may include one or more components made of ceramic. For example, the slide block orgas valve 22b 1 may include, or take the form of, a ceramic slide type gas valve. As a person skilled in the art would appreciate, a ceramic may take the form of a product or an article of manufacture made from a nonmetallic material by firing at a high temperature, such as porcelain. In particular, porcelain may be made from, or consistent of, kaolin, quartz and/or feldspar that is fired at high temperatures. The scope of the invention is not intended to be limited to any particular type or kind of ceramic or ceramic material that is now known or later developed in the art. -
FIGS. 7A and 7B show thegas opening 22 a 5′, thegas opening 22 a 6′ and thegas channel 22 a 7′. These openings and channel are closed off in a single pump configuration like that shown inFIGS. 2A ,2 B 3 and 4, but and may be used in a two pump configuration. For example, in the embodiments shown in relation toFIGS. 2A , 2B, 3 and 4, either theslide block 22b 1 blocks thegas opening 22 a 5′ when theslide block 22b 1 is in the positions inFIGS. 3 and 4 , or thegas opening 22 a 6′ is blocked off, e.g., with a cap (not shown). - By way of example, possible applications may include: BIB pumping, transfer pumping, or beverage dosing.
- The present invention may also be used in, or form part of, or used in conjunction with, other fluid handling applications. The scope of the invention is also not intended to be limited to being implemented in any particular type or kind of pump either now known or later developed in the future, and may include other diaphragm pumps, etc.
- While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, may modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment(s) disclosed herein as the best mode contemplated for carrying out this invention.
Claims (14)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/733,481 US20150377224A1 (en) | 2014-06-06 | 2015-06-08 | Single piston foundation bag-in-box (bib) pump |
US17/488,669 US11592013B2 (en) | 2014-06-06 | 2021-09-29 | Single piston foundation bag-in-box (BIB) pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201462008782P | 2014-06-06 | 2014-06-06 | |
US14/733,481 US20150377224A1 (en) | 2014-06-06 | 2015-06-08 | Single piston foundation bag-in-box (bib) pump |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/488,669 Continuation US11592013B2 (en) | 2014-06-06 | 2021-09-29 | Single piston foundation bag-in-box (BIB) pump |
Publications (1)
Publication Number | Publication Date |
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US20150377224A1 true US20150377224A1 (en) | 2015-12-31 |
Family
ID=54767612
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/733,481 Abandoned US20150377224A1 (en) | 2014-06-06 | 2015-06-08 | Single piston foundation bag-in-box (bib) pump |
US17/488,669 Active US11592013B2 (en) | 2014-06-06 | 2021-09-29 | Single piston foundation bag-in-box (BIB) pump |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/488,669 Active US11592013B2 (en) | 2014-06-06 | 2021-09-29 | Single piston foundation bag-in-box (BIB) pump |
Country Status (3)
Country | Link |
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US (2) | US20150377224A1 (en) |
EP (1) | EP3152440B1 (en) |
WO (1) | WO2015188185A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017173077A1 (en) * | 2016-03-30 | 2017-10-05 | Flow Control Llc. | Modular bib pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5083906A (en) * | 1990-09-11 | 1992-01-28 | Du Benjamin R | Fluid pump |
US5833439A (en) * | 1995-11-03 | 1998-11-10 | Du; Benjamin R. | Slide valve of a gas driven pump |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2920575A (en) | 1957-06-03 | 1960-01-12 | Taco Heaters Inc | Pump |
US3699846A (en) | 1970-12-30 | 1972-10-24 | Stewart Warner Corp | Air motor |
US3771907A (en) | 1971-09-13 | 1973-11-13 | Reynolds Products | Simplified positive displacement syrup pump assembly for drink machines |
US3782863A (en) | 1971-11-16 | 1974-01-01 | Rupp Co Warren | Slide valve apparatus |
US4008984A (en) | 1975-10-23 | 1977-02-22 | Scholle William R | Pump apparatus |
US4436493A (en) | 1979-09-21 | 1984-03-13 | The Coca-Cola Company | Self contained pump and reversing mechanism therefor |
US4540349A (en) | 1984-05-16 | 1985-09-10 | Du Benjamin R | Air driven pump |
US4681518A (en) | 1985-02-19 | 1987-07-21 | The Coca-Cola Company | Single-acting, gas operated pump |
US4828465A (en) * | 1985-02-19 | 1989-05-09 | The Coca-Cola Company | Single-acting, gas-operated pump |
US5470209A (en) | 1993-10-13 | 1995-11-28 | Shurflo Pump Manufacturing Co. | Offset reciprocable device |
US5667105A (en) | 1994-05-12 | 1997-09-16 | Shurflo Pump Manufacturing Co. | Portion control valve and system and method utilizing the same |
GB9419791D0 (en) | 1994-09-30 | 1994-11-16 | Rosereed Ltd | Pumps |
US6234349B1 (en) * | 1999-10-19 | 2001-05-22 | Sterling Beverage Systems, Inc. | Self-contained high pressure pneumatic beverage dispensing system |
US20050072800A1 (en) * | 2003-09-19 | 2005-04-07 | Smith Clyde M. | Fluid powered proportioning pump and post-mix beverage dispenser system using same |
US7225830B1 (en) | 2005-02-09 | 2007-06-05 | Kershaw Charles H | Fluid control valve |
NL1029124C2 (en) * | 2005-05-25 | 2006-11-28 | Friesland Brands Bv | Dispenser system with gas injection. |
GB2437262B (en) | 2006-04-21 | 2011-03-23 | Ludgate 332 Ltd | Water carbonation apparatus |
NL1033915C2 (en) * | 2007-05-31 | 2008-12-02 | Heineken Supply Chain Bv | Device and method for dispensing beverage. |
DE102010039829A1 (en) * | 2010-08-26 | 2012-03-01 | Prominent Dosiertechnik Gmbh | Diaphragm pump with inertia-controlled leak-relief valve |
US9370273B2 (en) * | 2010-12-02 | 2016-06-21 | Pepsico, Inc. | Hot and cold beverage dispenser |
US9249792B2 (en) | 2012-04-03 | 2016-02-02 | Benjamin R. Du | Bag in box beverage pump |
WO2013155079A1 (en) * | 2012-04-09 | 2013-10-17 | Flow Control Llc. | Air operated diaphragm pump |
-
2015
- 2015-06-08 US US14/733,481 patent/US20150377224A1/en not_active Abandoned
- 2015-06-08 EP EP15803683.0A patent/EP3152440B1/en active Active
- 2015-06-08 WO PCT/US2015/034703 patent/WO2015188185A2/en active Application Filing
-
2021
- 2021-09-29 US US17/488,669 patent/US11592013B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5083906A (en) * | 1990-09-11 | 1992-01-28 | Du Benjamin R | Fluid pump |
US5833439A (en) * | 1995-11-03 | 1998-11-10 | Du; Benjamin R. | Slide valve of a gas driven pump |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017173077A1 (en) * | 2016-03-30 | 2017-10-05 | Flow Control Llc. | Modular bib pump |
Also Published As
Publication number | Publication date |
---|---|
US11592013B2 (en) | 2023-02-28 |
EP3152440A4 (en) | 2018-04-04 |
EP3152440A2 (en) | 2017-04-12 |
EP3152440C0 (en) | 2024-03-27 |
EP3152440B1 (en) | 2024-03-27 |
US20220128048A1 (en) | 2022-04-28 |
WO2015188185A2 (en) | 2015-12-10 |
WO2015188185A3 (en) | 2016-03-10 |
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