EP0812800A1 - Beverage cooling and pumping - Google Patents
Beverage cooling and pumping Download PDFInfo
- Publication number
- EP0812800A1 EP0812800A1 EP97304139A EP97304139A EP0812800A1 EP 0812800 A1 EP0812800 A1 EP 0812800A1 EP 97304139 A EP97304139 A EP 97304139A EP 97304139 A EP97304139 A EP 97304139A EP 0812800 A1 EP0812800 A1 EP 0812800A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- agitator
- pump
- reservoir
- beverage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 11
- 235000013361 beverage Nutrition 0.000 title claims description 26
- 238000005086 pumping Methods 0.000 title claims description 10
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 3
- 238000013517 stratification Methods 0.000 abstract description 2
- 238000013019 agitation Methods 0.000 description 3
- 235000013405 beer Nutrition 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/10—Pump mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/0857—Cooling arrangements
- B67D1/0858—Cooling arrangements using compression systems
- B67D1/0861—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means
- B67D1/0864—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means in the form of a cooling bath
Definitions
- This invention relates to a beverage or beverage component cooling and pumping system. Such systems are frequently used as part of an ice bank cooling system for the chilling of beverages such as carbonated water or beer. Another name for carbonated water is soda.
- ice bank cooling systems there is a reservoir containing two sets of coils.
- the first coil comprises the expansion portion of a refrigeration circuit and acts to cool the water in the reservoir to form an ice bank.
- the second coil which passes through the water/ice bath or reservoir, is a heat exchanger for cooling a beverage or a beverage component such as a concentrate diluent.
- a pump may be located within the reservoir to pump the chilled beverage towards its dispense point.
- Such pump is typically driven by a motor located above the reservoir, and the same motor may be used to drive an agitator in the form of a paddle to prevent temperature stratification of the water within the reservoir.
- European patent specification 445 457 Figure 2 of which is hereby incorporated by way of reference.
- a beverage or beverage component cooling and pumping system including a reservoir of coolant liquid, an agitator for agitating liquid in the reservoir, power means located above the reservoir and arranged to drive a shaft which conveys rotation to the agitator, a pump for pumping the beverage or beverage component through a circuit, the pump being driven by the same power means as the agitator and being magnetically coupled to the power means by a magnetic coupling, characterised in that the magnetic coupling is located upon the shaft between the motor and the agitator.
- a beverage or beverage component cooling and pumping system including a reservoir of coolant liquid, an agitator for agitating liquid in the reservoir, power means located above the reservoir and arranged to drive a shaft which conveys rotation to the agitator, a pump for pumping the beverage or beverage component through a circuit, the pump being driven by the same power means as the agitator and being magnetically coupled to the power means by a magnetic coupling, characterised in that a further magnetic coupling is provided between the pump and a second shaft co-axial with the first shaft, and that the agitator is located upon the second shaft.
- an electric motor (or power means) 10 drives a shaft 11 which extends downwardly from motor 10 into a reservoir of water.
- Shaft 11 passes through a detachable cover plate 17.
- Cover plate 17 is located in a cover for the reservoir and is designed to contain evaporation from the surface of the water.
- a paddle-shaped agitator 19 Attached to the end of shaft 11 is a paddle-shaped agitator 19 which can agitate the water in the reservoir.
- arms 13 extend radially outwardly at an angle from shaft 11. Arms 13 encompass the driving part 20 of a magnetic coupling 20 at their ends remote from shaft 11.
- a set of stays 18 depend from the perimeter of cover plate 17 in the same direction as shaft 11 to support a pump housing 14 surrounding shaft 11 between the arms 13 and the agitator 19.
- the pump housing 14 has within it a pump impeller 15 which drives beverage entering the pump housing 14 towards a remote dispense point (not shown) for the beverage.
- the beverage is soda.
- the pump impeller 15 is driven, not directly from shaft 11, but through the magnetic coupling.
- the driving part of magnetic coupling 20 co-operates magnetically with a driven magnet 16 which is radially inboard of the driving part 20, but inside pump housing 14 and connected to impeller 15. Rotation of shaft 11 thus causes direct rotation of agitator 19, and indirectly, through the magnetic coupling, the rotation of pump impeller 15.
- the positioning of the impeller deeper in the reservoir provides for improved agitation of the water reservoir in deep baths.
- a motor 110 drives a shaft 111 which extends vertically downwards into a water reservoir.
- a pump housing 114 is located and supported by stays 118 which surround shaft 111.
- Pump housing 114 contains an impeller 115 which has an annular or hollow vertical shaft 121 which can rotate about a spindle 126 which is attached to pump housing 114.
- Spindle 126 and cylindrical shaft 121 are co-axial with but spaced axially from drive shaft 111.
- Arms 113 similar to arms 13 of Figure 1, extend from adjacent the end of drive shaft 111 remote from motor 110. Arms 113 retain the driving part 120 of a magnetic coupling which extends around the upper part of pump housing 114. Co-operating with driving part 120 is a driven magnet 116 located within pump housing 114 and attached to the upper end of hollow shaft 121. Hollow shaft 121 is thus caused to rotate by magnetic coupling between the driving part 120 and the driving part 116 of the magnetic coupling when shaft 111 is rotated by motor 110.
- the lower portion of the hollow shaft 121 which carries pump impeller 115 also carries a magnetic driving component 122, located beneath impeller 115.
- Component 122 is cylindrical in shape and co-axial with the previously mentioned magnetic driving means and with shaft 111.
- An agitator 119 attached to a lower shaft 124 extends beneath pump housing 114 and is coupled magnetically to hollow shaft 121 through the magnetic drive component 122 and magnetically driven member 123.
- the bottom end of lower shaft 124 is located and supported so that it extends co-axially with drive shaft 111 by means of extensions 125 of stays 118 and a lower location member 128 attached to extensions 125.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
Description
- This invention relates to a beverage or beverage component cooling and pumping system. Such systems are frequently used as part of an ice bank cooling system for the chilling of beverages such as carbonated water or beer. Another name for carbonated water is soda.
- In ice bank cooling systems there is a reservoir containing two sets of coils. The first coil comprises the expansion portion of a refrigeration circuit and acts to cool the water in the reservoir to form an ice bank. The second coil, which passes through the water/ice bath or reservoir, is a heat exchanger for cooling a beverage or a beverage component such as a concentrate diluent.
- A pump may be located within the reservoir to pump the chilled beverage towards its dispense point. Such pump is typically driven by a motor located above the reservoir, and the same motor may be used to drive an agitator in the form of a paddle to prevent temperature stratification of the water within the reservoir. One example of such a system is described and illustrated in European patent specification 445 457, Figure 2 of which is hereby incorporated by way of reference.
- One disadvantage of this previously described system is that, with deep water baths, adequate agitation of the reservoir may not take place.
- It is an object of the present invention to provide an improved agitation arrangement for deep water reservoirs.
- According to one aspect of the present invention, we provide a beverage or beverage component cooling and pumping system including a reservoir of coolant liquid, an agitator for agitating liquid in the reservoir, power means located above the reservoir and arranged to drive a shaft which conveys rotation to the agitator, a pump for pumping the beverage or beverage component through a circuit, the pump being driven by the same power means as the agitator and being magnetically coupled to the power means by a magnetic coupling, characterised in that the magnetic coupling is located upon the shaft between the motor and the agitator.
- According to a further aspect of the present invention, we also provide a beverage or beverage component cooling and pumping system including a reservoir of coolant liquid, an agitator for agitating liquid in the reservoir, power means located above the reservoir and arranged to drive a shaft which conveys rotation to the agitator, a pump for pumping the beverage or beverage component through a circuit, the pump being driven by the same power means as the agitator and being magnetically coupled to the power means by a magnetic coupling, characterised in that a further magnetic coupling is provided between the pump and a second shaft co-axial with the first shaft, and that the agitator is located upon the second shaft.
- Two embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which:
- Figure 1 shows in schematic form and partially in cross-section a power means or motor together with a pump and agitator for use in the present invention, and
- Figure 2 shows a modified version of the example of Figure 1.
- This description also incorporates a cooling reservoir as shown in Figure 2 of European patent 445 457.
- In Figure 1, an electric motor (or power means) 10 drives a shaft 11 which extends downwardly from
motor 10 into a reservoir of water. Shaft 11 passes through adetachable cover plate 17.Cover plate 17 is located in a cover for the reservoir and is designed to contain evaporation from the surface of the water. - Attached to the end of shaft 11 is a paddle-
shaped agitator 19 which can agitate the water in the reservoir. Partway between themotor 10 and theagitator 19,arms 13 extend radially outwardly at an angle from shaft 11.Arms 13 encompass thedriving part 20 of amagnetic coupling 20 at their ends remote from shaft 11. - A set of
stays 18 depend from the perimeter ofcover plate 17 in the same direction as shaft 11 to support apump housing 14 surrounding shaft 11 between thearms 13 and theagitator 19. Thepump housing 14 has within it apump impeller 15 which drives beverage entering thepump housing 14 towards a remote dispense point (not shown) for the beverage. Typically the beverage is soda. - The
pump impeller 15 is driven, not directly from shaft 11, but through the magnetic coupling. The driving part ofmagnetic coupling 20 co-operates magnetically with a drivenmagnet 16 which is radially inboard of the drivingpart 20, but insidepump housing 14 and connected toimpeller 15. Rotation of shaft 11 thus causes direct rotation ofagitator 19, and indirectly, through the magnetic coupling, the rotation ofpump impeller 15. The positioning of the impeller deeper in the reservoir provides for improved agitation of the water reservoir in deep baths. - Referring to Figure 2, a
motor 110 drives a shaft 111 which extends vertically downwards into a water reservoir. Apump housing 114 is located and supported bystays 118 which surround shaft 111. -
Pump housing 114 contains animpeller 115 which has an annular or hollowvertical shaft 121 which can rotate about aspindle 126 which is attached topump housing 114. Spindle 126 andcylindrical shaft 121 are co-axial with but spaced axially from drive shaft 111. -
Arms 113, similar toarms 13 of Figure 1, extend from adjacent the end of drive shaft 111 remote frommotor 110.Arms 113 retain thedriving part 120 of a magnetic coupling which extends around the upper part ofpump housing 114. Co-operating withdriving part 120 is a drivenmagnet 116 located withinpump housing 114 and attached to the upper end ofhollow shaft 121.Hollow shaft 121 is thus caused to rotate by magnetic coupling between the drivingpart 120 and the drivingpart 116 of the magnetic coupling when shaft 111 is rotated bymotor 110. - The lower portion of the
hollow shaft 121 which carriespump impeller 115 also carries amagnetic driving component 122, located beneathimpeller 115.Component 122 is cylindrical in shape and co-axial with the previously mentioned magnetic driving means and with shaft 111. Anagitator 119 attached to alower shaft 124 extends beneathpump housing 114 and is coupled magnetically tohollow shaft 121 through themagnetic drive component 122 and magnetically drivenmember 123. The bottom end oflower shaft 124 is located and supported so that it extends co-axially with drive shaft 111 by means ofextensions 125 ofstays 118 and alower location member 128 attached toextensions 125. - In this second arrangement, neither the
agitator 119 nor thepump impeller 115 is directly driven from shaft 111. Rotation ofpump impeller 115 is caused through the magnetic driving means described above, and such rotational drive is subsequently passed through a second magnetic driving means to provide rotation of theagitator 119.
Claims (4)
- A beverage or beverage component cooling and pumping system including a reservoir of coolant liquid, an agitator (19) for agitating liquid in the reservoir, power means (10) located above the reservoir and arranged to drive a shaft (11) which conveys rotation to the agitator (19), a pump (14, 15) for pumping the beverage or beverage component through a circuit, the pump (14, 15) being driven by the same power means (10) as the agitator (19) and being magnetically coupled to the power means by a magnetic coupling, characterised in that the magnetic coupling (16, 20) is located upon the shaft (11) between the power means (10) and the agitator (19).
- A beverage or beverage component cooling and pumping system including a reservoir of coolant liquid, an agitator (119) for agitating liquid in the reservoir, power means (110) located above the reservoir and arranged to drive a first shaft (111) which conveys rotation to the agitator (119), a pump (114, 115) for pumping the beverage or beverage component through a circuit, the pump (114, 115) being driven by the same power means (110) as the agitator (119) and being magnetically coupled to the power means by a magnetic coupling, characterised in that a further magnetic coupling (122, 123) is provided between the pump (114, 115) and a second shaft co-axial (124) with the first shaft (111), and that the agitator (119) is located upon the second shaft (124).
- A system as claimed in claim 11 or claim 2 in which the power means (10, 110) is located on a cover plate (17, 117) characterised in that stays (18, 118) depend from said cover plate (17, 117) to support the pump housing (14, 114).
- A system as claimed in claim 3 characterised in that said stays (118) have extensions (125) which support a location number (128) for the second shaft (124).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9612351.8A GB9612351D0 (en) | 1996-06-13 | 1996-06-13 | Beverage cooling and pumping |
GB9612351 | 1996-06-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0812800A1 true EP0812800A1 (en) | 1997-12-17 |
EP0812800B1 EP0812800B1 (en) | 2000-01-19 |
Family
ID=10795223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970304139 Expired - Lifetime EP0812800B1 (en) | 1996-06-13 | 1997-06-13 | Beverage cooling and pumping |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0812800B1 (en) |
DE (1) | DE69701170T2 (en) |
ES (1) | ES2143285T3 (en) |
GB (1) | GB9612351D0 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4008832A (en) * | 1975-10-28 | 1977-02-22 | The Coca-Cola Co. | Three drink gravity dispenser for cool beverages |
GB2167845A (en) * | 1984-12-03 | 1986-06-04 | S I Coolers Ltd | Drive arrangement for a pump/agitator in a cooler |
GB2208536A (en) * | 1987-07-31 | 1989-04-05 | Imi Cornelius | Beverage cooler |
US5035121A (en) * | 1990-07-25 | 1991-07-30 | Imi Cornelius Inc. | Beverage cooling and pumping system |
-
1996
- 1996-06-13 GB GBGB9612351.8A patent/GB9612351D0/en active Pending
-
1997
- 1997-06-13 DE DE1997601170 patent/DE69701170T2/en not_active Expired - Fee Related
- 1997-06-13 ES ES97304139T patent/ES2143285T3/en not_active Expired - Lifetime
- 1997-06-13 EP EP19970304139 patent/EP0812800B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4008832A (en) * | 1975-10-28 | 1977-02-22 | The Coca-Cola Co. | Three drink gravity dispenser for cool beverages |
GB2167845A (en) * | 1984-12-03 | 1986-06-04 | S I Coolers Ltd | Drive arrangement for a pump/agitator in a cooler |
GB2208536A (en) * | 1987-07-31 | 1989-04-05 | Imi Cornelius | Beverage cooler |
US5035121A (en) * | 1990-07-25 | 1991-07-30 | Imi Cornelius Inc. | Beverage cooling and pumping system |
Also Published As
Publication number | Publication date |
---|---|
ES2143285T3 (en) | 2000-05-01 |
GB9612351D0 (en) | 1996-08-14 |
DE69701170D1 (en) | 2000-02-24 |
DE69701170T2 (en) | 2000-08-31 |
EP0812800B1 (en) | 2000-01-19 |
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