EP1617084A1 - Drainage pump - Google Patents
Drainage pump Download PDFInfo
- Publication number
- EP1617084A1 EP1617084A1 EP05013455A EP05013455A EP1617084A1 EP 1617084 A1 EP1617084 A1 EP 1617084A1 EP 05013455 A EP05013455 A EP 05013455A EP 05013455 A EP05013455 A EP 05013455A EP 1617084 A1 EP1617084 A1 EP 1617084A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dish
- thin wall
- vane
- drainage pump
- ring member
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/12—Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2216—Shape, geometry
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
Definitions
- the present invention relates to a drainage pump, especially a drainage pump provided in an air conditioner.
- the drainage pump comprises a pump main body or housing having a suction inlet at the bottom, an opened upper portion and a discharge outlet at the side, which houses a vane disposed rotatably therein, and the vane is rotated by a motor fixed to the upper portion of the housing opening via a cover.
- the drive shaft of the motor passes rotatably through a through hole formed to the cover and connected to a shaft portion of the vane, so that when the motor is driven to rotate the vane, the drain water collected in the drain pan is sucked in through the lower end of the vane in the suction inlet, pumped up by centrifugal force along the inner surface of the housing and discharged to the exterior through the discharge outlet of the casing.
- the operation noise of the indoor unit is required to be as small as possible.
- the present invention aims at providing a drainage pump having a reduced operation sound.
- the drainage pump comprises, as basic means, a motor; a rotary vane connected to an output shaft of the motor; a housing for the rotary vane, the housing having a suction inlet to which a small-diameter vane of the rotary vane is inserted, and a discharge outlet disposed on a side of the pump chamber; wherein the rotary vane comprises a shaft portion connected to the output shaft of the motor, a plate-shaped large-diameter vane extending in the radial direction from the shaft portion, a plate-shaped small-diameter vane connected to the large-diameter vane via a tapered connecting portion, a ring member connected to an outer circumference portion of the large-diameter vane, andadish-like member connected to the lower end of the ring member; and the ring member has a thin wall portion formed to an upper end portion thereof.
- the present invention having the above arrangement is capable of reducing the water paddling noise of the drainage pump.
- FIG. 1 is an explanatory view of a drainage pump to which the present invention is applied.
- a drainage pump the whole of which being denoted by reference number 1, comprises an electric motor 10, and power to the electric motor 10 is fed via a lead wire 11.
- the electric motor 10 is supported by a bracket 20, and the lower end of the bracket 20 is connected to a lid member 30 mounted on an upper portion of a pump housing (pump main body) 50.
- the housing 50 is formed of plastic, and inside the housing is defined a pump chamber 52.
- a suction inlet 60 and a discharge outlet 70 communicated with the pump chamber 52 are formed integrally with the housing 50.
- a rotary vane 100 is disposed inside the pump chamber 52, and the opening of the pump chamber 52 is covered with the lid member 30.
- a seal member 40 is inserted between the housing 50 and the lid member 30, preventing leakage of drain water from the pump chamber.
- FIG. 2 is an explanatory view showing the details of the rotary vane 100.
- the rotary vane 100 has a shaft portion 110 with a hole having a bottom portion, and in the hole is inserted an output shaft 12 of the electricmotor 10.
- Aplate-shaped large-diameter vane 120 extending in the radial direction from the shaft portion 110 has its outer circumference end connected to a cylindrical ring member 200.
- the large-diameter vane 120 is connected via a tapered connecting portion 130 to a small-diameter vane 140.
- the drainage pump is equipped with four large-diameter vanes 120 and small-diameter vanes 140.
- the lower end of the large-diameter vane 120 is connected to a dish-like member 160.
- An opening 150 is formed to the center area of the dish-like member 160, and the drainage water entering from the suction inlet is sent via the small-diameter vane 140 and the connecting portion 130 toward the large-diameter vane 120.
- auxiliary large-diameter vanes 122 are provided inside the ringmember 200.
- the inner circumference end of the auxiliary large-diameter vane 122 extends close to the outer edge of the opening 150 of the dish-like member 160.
- FIGS. 3 through 6 illustrate various examples of the shape of the ring member 200 of the rotary vane according to the present invention, which are shown by cross-sectional views taken at line A-A of FIG. 2.
- Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
- Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
- Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
- Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
Description
- The present invention relates to a drainage pump, especially a drainage pump provided in an air conditioner.
- During cooling operation of an indoor unit of an air conditioner, the moisture in the air is condensed on a heat exchanger and drops down into a drain pan disposed under the heat exchanger. A drainage pump is used to discharge the drain water collected in the drain pan. The drainage pump comprises a pump main body or housing having a suction inlet at the bottom, an opened upper portion and a discharge outlet at the side, which houses a vane disposed rotatably therein, and the vane is rotated by a motor fixed to the upper portion of the housing opening via a cover. The drive shaft of the motor passes rotatably through a through hole formed to the cover and connected to a shaft portion of the vane, so that when the motor is driven to rotate the vane, the drain water collected in the drain pan is sucked in through the lower end of the vane in the suction inlet, pumped up by centrifugal force along the inner surface of the housing and discharged to the exterior through the discharge outlet of the casing.
- This type of drainage pump is disclosed for example in Japanese Patent Application Laid-Open No. 2000-213770 (patent document 1) filed by the present applicant.
- The operation noise of the indoor unit is required to be as small as possible.
- The present invention aims at providing a drainage pump having a reduced operation sound.
- The drainage pump according to the present invention comprises, as basic means, a motor; a rotary vane connected to an output shaft of the motor; a housing for the rotary vane, the housing having a suction inlet to which a small-diameter vane of the rotary vane is inserted, and a discharge outlet disposed on a side of the pump chamber; wherein the rotary vane comprises a shaft portion connected to the output shaft of the motor, a plate-shaped large-diameter vane extending in the radial direction from the shaft portion, a plate-shaped small-diameter vane connected to the large-diameter vane via a tapered connecting portion, a ring member connected to an outer circumference portion of the large-diameter vane, andadish-like member connected to the lower end of the ring member; and the ring member has a thin wall portion formed to an upper end portion thereof.
- The present invention having the above arrangement is capable of reducing the water paddling noise of the drainage pump.
-
- FIG. 1 is an explanatory view of a drainage pump according to the present invention;
- FIG. 2 is an explanatory view of a rotary vane;
- FIG. 3 is an explanatory view illustrating examples of cross-sectional shapes taken at line A-A of FIG. 2;
- FIG. 4 is an explanatory view illustrating examples of cross-sectional shapes taken at line A-A of FIG. 2;
- FIG. 5 is an explanatory view illustrating examples of cross-sectional shapes taken at line A-A of FIG. 2; and
- FIG. 6 is an explanatory view illustrating examples of cross-sectional shapes taken at line A-A of FIG. 2.
- FIG. 1 is an explanatory view of a drainage pump to which the present invention is applied.
- A drainage pump, the whole of which being denoted by reference number 1, comprises an
electric motor 10, and power to theelectric motor 10 is fed via a lead wire 11. Theelectric motor 10 is supported by abracket 20, and the lower end of thebracket 20 is connected to alid member 30 mounted on an upper portion of a pump housing (pump main body) 50. - The
housing 50 is formed of plastic, and inside the housing is defined apump chamber 52. Asuction inlet 60 and adischarge outlet 70 communicated with thepump chamber 52 are formed integrally with thehousing 50. - A
rotary vane 100 is disposed inside thepump chamber 52, and the opening of thepump chamber 52 is covered with thelid member 30. Aseal member 40 is inserted between thehousing 50 and thelid member 30, preventing leakage of drain water from the pump chamber. - FIG. 2 is an explanatory view showing the details of the
rotary vane 100. - The
rotary vane 100 has ashaft portion 110 with a hole having a bottom portion, and in the hole is inserted an output shaft 12 of theelectricmotor 10. Aplate-shaped large-diameter vane 120 extending in the radial direction from theshaft portion 110 has its outer circumference end connected to acylindrical ring member 200. - As shown in FIG. 1, the large-
diameter vane 120 is connected via a tapered connectingportion 130 to a small-diameter vane 140. - According to the present embodiment, the drainage pump is equipped with four large-
diameter vanes 120 and small-diameter vanes 140. - The lower end of the large-
diameter vane 120 is connected to a dish-like member 160. Anopening 150 is formed to the center area of the dish-like member 160, and the drainage water entering from the suction inlet is sent via the small-diameter vane 140 and the connectingportion 130 toward the large-diameter vane 120. - Four auxiliary large-
diameter vanes 122 are provided inside theringmember 200. The inner circumference end of the auxiliary large-diameter vane 122 extends close to the outer edge of the opening 150 of the dish-like member 160. - FIGS. 3 through 6 illustrate various examples of the shape of the
ring member 200 of the rotary vane according to the present invention, which are shown by cross-sectional views taken at line A-A of FIG. 2. - FIG. 3(a) illustrates an example in which the upper end of the
ring member 200 is formed as athin wall portion 201, which is connected via a protruded curved wall 201a to the dish-like member 160. By adopting a ring member having such cross-sectional shape, water paddling noise can be reduced. - FIG. 3(b) illustrates an example in which the upper end of the
ring member 200 is formed as athin wall portion 202, which is connected via a step portion 202a to the dish-like member 160. - FIG. 3(c) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 203, which is connected via achamfered portion 203a to the dish-like member 160. - FIG. 3(d) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 204, which is connected via atapered portion 204a to the dish-like member 160. - FIG. 3(e) illustrates an example in which the outer circumference of the upper end portion of the
ring member 200 is cut away to form athin wall portion 205, which is connected via a protrudedcurved wall 205a to the dish-like member 160. - Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
- FIG. 4(a) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 211, which is connected via a tapered portion 211a to the dish-like member 160. By adopting a ring member having such cross-sectional shape, water paddling noise can be reduced. - FIG. 4(b) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 212 having a height lower than the height of the large-diameter vane, which is connected via a protruded curved wall 212a to the dish-like member 160. - FIG. 4(c) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 213, which is connected via a stepped and tapered portion 213a to the dish-like member 160. - FIG. 4(d) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 214, which is connected via a protruded curved wall 214a to the dish-like member 160. - FIG. 4(e) illustrates an example in which the outer circumference wall of the upper end portion of the ring member
- 200 is cut away to form a
thin wall portion 215, which is connected via a tapered portion 215a to the dish-like member 160. - Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
- FIG. 5(a) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 221, which is connected via a tapered portion 221a to the dish-like member 160. By adopting a ring member having such cross-sectional shape, water paddling noise can be reduced. - FIG. 5(b) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 222, which is connected via a recessed curved wall 222a to the dish-like member 160. - FIG. 5(c) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 223, which is connected via atapered portion 223a to the dish-like member 160. - FIG. 5(d) illustrates an example in which the upper end portion of the
ring member 200 is formed as an upward taperedthin wall portion 224, which is connected via a protrudedcurved wall 224a to the dish-like member 160. - FIG. 5(e) illustrates an example in which the outer circumference wall of the upper end portion of the
ring member 200 is cut away to form athin wall portion 225, which is connected via a tapered portion 225a to the dish-like member 160. - Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
- FIG. 6(a) illustrates an example in which the upper end portion of the
ring member 200 is formed as an upward taperedthin wall portion 231, which is connected via a protruded curved wall 231a to the dish-like member 160. By adopting a ring member having such cross-sectional shape, water paddling noise can be reduced. - FIG. 6(b) illustrates an example in which the upper end portion of the
ring member 200 is formed as an upward taperedthin wall portion 232, which is connected via a protrudedcurved wall 232a to the dish-like member 160. - FIG. 6(c) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 233 with an inner curved surface, which is connected via a protrudedcurved wall 233a to the dish-like member 160. - FIG. 6(d) illustrates an example in which the upper end portion of the
ring member 200 is formed as athin wall portion 234 with an outer curved surface, which is connected via a protruded curved wall 234a to the dish-like member 160. - FIG. 6(e) illustrates an example in which the outer circumference wall of the upper end portion of the
ring member 200 is cut away to form athin wall portion 235, which is connected via a protruded curved wall 235a to the dish-like member 160. - Cutting away the wall thickness of the outer circumference of the upper end portion to form the thin wall portion can be applied to all other examples described above.
- By adopting the above-illustrated design to the ring member of the rotary vane, the water paddling noise of the drainage pump can be reduced.
Claims (6)
- A drainage pump comprising:a motor;a rotary vane connected to an output shaft of the motor;a housing for the rotary vane, the housing having a suction inlet to which a small-diameter vane of the rotary vane is inserted, and a discharge outlet disposed on a side of the pump chamber; whereinthe rotary vane comprises a shaft portion connected to the output shaft of the motor, a plate-shaped large-diameter vane extending in the radial direction from the shaft portion, a plate-shaped small-diameter vane connected to the large-diameter vane via a tapered connecting portion, a ring member connected to an outer circumference portion of the large-diameter vane, and a dish-like member connected to the lower end of the ring member; andthe ring member has a thin wall portion formed to an upper end portion thereof.
- The drainage pump according to claim 1, further comprising a tapered portion connecting the thin wall portion and the dish-like member.
- The drainage pump according to claim 1, further comprising a stepped portion connecting the thin wall portion and the dish-like member.
- The drainage pump according to claim 1, further comprising a chamfered portion connecting the thin wall portion and the dish-like member.
- The drainage pump according to claim 1, further comprising a protruded curved wall connecting the thin wall portion and the dish-like member.
- The drainage pump according to claim 1, further comprising a recessed curved wall connecting the thin wall portion and the dish-like member.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004209377A JP2006029214A (en) | 2004-07-16 | 2004-07-16 | Drain pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1617084A1 true EP1617084A1 (en) | 2006-01-18 |
EP1617084B1 EP1617084B1 (en) | 2013-05-08 |
Family
ID=34937602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05013455.0A Expired - Fee Related EP1617084B1 (en) | 2004-07-16 | 2005-06-22 | Drainage pump |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1617084B1 (en) |
JP (1) | JP2006029214A (en) |
KR (1) | KR101185830B1 (en) |
CN (1) | CN100429409C (en) |
TW (1) | TWI359910B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101196331B (en) * | 2006-12-05 | 2010-06-23 | 三星电子株式会社 | Air conditioner and its control method |
CN101943181A (en) * | 2009-07-07 | 2011-01-12 | 株式会社不二工机 | Draining pump |
CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
EP3171032A1 (en) * | 2015-11-18 | 2017-05-24 | Fujikoki Corporation | Drainage pump |
TWI711765B (en) * | 2019-03-29 | 2020-12-01 | 合利美股份有限公司 | Drain pump for air conditioner with installation structure |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011069257A (en) * | 2009-09-24 | 2011-04-07 | Fuji Koki Corp | Drain pump |
CN102052348B (en) * | 2009-11-07 | 2013-08-14 | 浙江三花股份有限公司 | Liquid discharge device |
CN101985942A (en) * | 2010-11-18 | 2011-03-16 | 姜堰市德华船用泵业制造有限公司 | Tangent pump for ships |
JP5889051B2 (en) * | 2011-08-30 | 2016-03-22 | 株式会社不二工機 | Drainage pump |
CN104675745B (en) * | 2013-11-27 | 2017-09-29 | 浙江三花制冷集团有限公司 | A kind of water pump and its impeller |
JP6427428B2 (en) | 2014-09-26 | 2018-11-21 | 株式会社不二工機 | Drainage pump |
CN106382687B (en) * | 2016-10-31 | 2021-10-26 | 广东美的制冷设备有限公司 | Window type air conditioner |
CN110296084B (en) * | 2019-07-09 | 2020-08-25 | 永嘉企达知识产权咨询有限公司 | Vertical centrifugal pump |
CN114087207A (en) * | 2020-08-24 | 2022-02-25 | 浙江三花商用制冷有限公司 | Fluid discharge device |
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US4836748A (en) * | 1983-12-09 | 1989-06-06 | Church Holdings | Ring propeller |
WO1995009984A1 (en) * | 1993-10-07 | 1995-04-13 | Haemonetics Corporation | Centrifugal blood pump with impeller blades forming a spin inducer |
EP0713978A1 (en) * | 1994-11-25 | 1996-05-29 | Fujikoki Mfg. Co., Ltd. | Drainage pump |
EP0760428A1 (en) * | 1995-08-29 | 1997-03-05 | Fujikoki Corporation | Drainage pump |
EP1024297A2 (en) * | 1999-01-27 | 2000-08-02 | Fujikoki Corporation | Drain pump |
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JPH05187371A (en) * | 1992-01-13 | 1993-07-27 | Hitachi Ltd | Scroll compressor and end mill for machining scroll lap |
JP3524611B2 (en) * | 1995-02-06 | 2004-05-10 | 株式会社不二工機 | Drainage pump |
JP3910665B2 (en) * | 1996-10-11 | 2007-04-25 | 株式会社不二工機 | Drainage pump |
JP3874561B2 (en) * | 1999-01-27 | 2007-01-31 | 株式会社不二工機 | Drainage pump |
JP3820814B2 (en) * | 1999-08-24 | 2006-09-13 | 日本精工株式会社 | Hydrodynamic bearing and manufacturing method thereof |
JP2001123977A (en) * | 1999-10-27 | 2001-05-08 | Saginomiya Seisakusho Inc | Drainage pump |
JP3511044B2 (en) * | 2000-06-21 | 2004-03-29 | 株式会社鷺宮製作所 | Drain drain pump |
JP2003293976A (en) * | 2002-04-08 | 2003-10-15 | Taisan Kogyo Kk | Drain pump |
-
2004
- 2004-07-16 JP JP2004209377A patent/JP2006029214A/en active Pending
-
2005
- 2005-06-15 TW TW094119793A patent/TWI359910B/en active
- 2005-06-22 EP EP05013455.0A patent/EP1617084B1/en not_active Expired - Fee Related
- 2005-07-15 CN CNB2005100842053A patent/CN100429409C/en active Active
- 2005-07-15 KR KR1020050063947A patent/KR101185830B1/en active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4218018A (en) * | 1977-08-06 | 1980-08-19 | Robert Bosch Gmbh | Arrangement for washing lenses of headlights |
US4836748A (en) * | 1983-12-09 | 1989-06-06 | Church Holdings | Ring propeller |
WO1995009984A1 (en) * | 1993-10-07 | 1995-04-13 | Haemonetics Corporation | Centrifugal blood pump with impeller blades forming a spin inducer |
EP0713978A1 (en) * | 1994-11-25 | 1996-05-29 | Fujikoki Mfg. Co., Ltd. | Drainage pump |
EP0760428A1 (en) * | 1995-08-29 | 1997-03-05 | Fujikoki Corporation | Drainage pump |
EP1024297A2 (en) * | 1999-01-27 | 2000-08-02 | Fujikoki Corporation | Drain pump |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101196331B (en) * | 2006-12-05 | 2010-06-23 | 三星电子株式会社 | Air conditioner and its control method |
CN101943181A (en) * | 2009-07-07 | 2011-01-12 | 株式会社不二工机 | Draining pump |
US20110008153A1 (en) * | 2009-07-07 | 2011-01-13 | Fujikoki Corporation | Drain pump |
US8747071B2 (en) * | 2009-07-07 | 2014-06-10 | Fujikoki Corporation | Drain pump |
CN101943181B (en) * | 2009-07-07 | 2014-10-22 | 株式会社不二工机 | Drain pump |
TWI499724B (en) * | 2009-07-07 | 2015-09-11 | Fujikoki Corp | Drainage pump |
CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
CN102996462B (en) * | 2011-08-30 | 2018-04-24 | 株式会社不二工机 | draining pump |
EP3171032A1 (en) * | 2015-11-18 | 2017-05-24 | Fujikoki Corporation | Drainage pump |
CN106989068A (en) * | 2015-11-18 | 2017-07-28 | 株式会社不二工机 | Draining pump |
CN106989068B (en) * | 2015-11-18 | 2020-01-14 | 株式会社不二工机 | Water discharge pump |
TWI711765B (en) * | 2019-03-29 | 2020-12-01 | 合利美股份有限公司 | Drain pump for air conditioner with installation structure |
Also Published As
Publication number | Publication date |
---|---|
KR20060050184A (en) | 2006-05-19 |
TW200604438A (en) | 2006-02-01 |
JP2006029214A (en) | 2006-02-02 |
TWI359910B (en) | 2012-03-11 |
EP1617084B1 (en) | 2013-05-08 |
KR101185830B1 (en) | 2012-10-02 |
CN100429409C (en) | 2008-10-29 |
CN1757935A (en) | 2006-04-12 |
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