US20020056279A1 - Cooler for machine tool - Google Patents
Cooler for machine tool Download PDFInfo
- Publication number
- US20020056279A1 US20020056279A1 US09/987,441 US98744101A US2002056279A1 US 20020056279 A1 US20020056279 A1 US 20020056279A1 US 98744101 A US98744101 A US 98744101A US 2002056279 A1 US2002056279 A1 US 2002056279A1
- Authority
- US
- United States
- Prior art keywords
- housing
- cooling
- machine tool
- cooling liquid
- supply unit
- 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.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
Definitions
- the present invention relates to a cooler for a machine tool.
- a main spindle is rotatably supported by a housing via a bearing, so that heat generated by the rotation of the main spindle is conducted to the housing. Therefore, a cooler for cooling the housing is provided in such a machine tool.
- a cooler for cooling the housing is provided in such a machine tool.
- One example of such a cooler is the structure for cooling a spindle unit as shown in FIG. 4 which is disclosed in Japanese Unexamined Patent Publication No. 6-31585 (1994).
- the spindle unit includes a housing 31 , a spindle cylinder 32 fixed within the housing 31 , and a main spindle 33 rotatably supported in the housing 31 via a bearing unit 34 and an upper bearing (not shown).
- the cooling structure of the spindle unit includes a cooling liquid channel defined between a helical groove 35 formed in an outer peripheral surface of the main spindle 33 and a bearing inner cylinder 36 of the bearing unit 34 , and another cooling liquid channel defined between a helical groove 37 formed in an outer peripheral surface of the spindle cylinder 32 and the housing 31 .
- the spindle unit further includes a cooling liquid supply path 38 , a cooling liquid drain path 39 , a cooling liquid inlet port 40 and a cooling liquid outlet port 41 .
- a cooling liquid is supplied to the respective cooling liquid channels by a cooling liquid supply unit which has an orifice for flow rate control, a sensor for temperature control and the like.
- a cooling liquid supply unit specifically designed for supplying the cooling liquid to the cooling liquid channels in the spindle unit cooling structure is quite expensive, thereby making the machine tool itself more expensive.
- a cooler for a machine tool which comprises a main spindle, a housing rotatably supporting the main spindle via a bearing, and a channel provided in association with the housing for passing a cooling mist therethrough.
- the channel for passing the cooling mist therethrough is in association with the housing. Therefore, the housing can be cooled by passing the cooling mist through the channel in association with the housing and taking heat away from the housing by evaporation of the cooling mist.
- the cooling mist can easily be generated with the use of a cooling liquid supply unit and a compressed air supply unit, both typically included in the machine tool.
- a tank containing a cooling liquid, a lubricating liquid or a mixture of the cooling liquid and the lubricating liquid for cooling or lubricating a tool, and a pump for supplying the cooling liquid or the like from the tank to a cooling liquid injection nozzle typically are provided in the machine tool as the cooling liquid supply unit.
- an air compressor for supplying compressed air to eject the cooling liquid or the like from the cooling liquid injection nozzle typically is provided in the machine tool as the compressed air supply unit. Therefore, the generation of the cooling mist can easily be achieved by mixing the cooling liquid supplied from the cooling liquid supply unit with the compressed air supplied from the compressed air supply unit so as to produce the cooling liquid in mist form.
- the channel comprises a tube helically wound around the housing in the inventive machine tool cooler
- the channel can be formed from a less expensive tubular material.
- the housing can be cooled from its interior with a more advantageous cooling effect.
- FIG. 1 is a sectional view illustrating a machine tool cooler according to one embodiment of the present invention
- FIG. 2 is a sectional view illustrating a machine tool cooler according to another embodiment of the present invention.
- FIG. 3 is a sectional view illustrating a machine tool cooler according to further another embodiment of the present invention.
- FIG. 4 is a sectional view illustrating a machine tool cooler according to the prior art.
- FIG. 1 is a sectional view illustrating a cooler for a machine tool in accordance with one embodiment of the present invention.
- the machine tool is a numerically controlled (NC) lathe.
- a generally cylindrical housing 1 fixed to a headstock (not shown) has a center through-hole 1 a , and a pair of bearings 2 are fixed to longitudinally opposite portions of the inner periphery of the center through-hole 1 a .
- a generally cylindrical main spindle 3 within through-hole 1 a is rotatably supported by the bearings 2 .
- a chuck (not shown) is provided at one end (a right end in FIG. 1 ) of the main spindle 3 .
- a pulley 4 is fixed around the other end portion (a left end portion in FIG. 1) of the main spindle 3 , and is coupled to a rotation shaft (not shown) of a motor via a belt 5 .
- a draw bar and the like are provided in the center through-hole 3 a of the main spindle 3 .
- an annular fixture 6 is fitted around the main spindle 3 .
- the machine tool includes a cooling liquid supply unit (not shown) including a tank containing a cooling water (cooling liquid) such as tap water and a pump for supplying the cooling water from the tank to a cooling water injection nozzle (not shown).
- the machine tool further includes a compressed air supply unit (not shown) including an air compressor for supplying compressed air to the cooling water injection nozzle.
- the cooling water and the compressed air are supplied from the cooling liquid supply unit and the compressed air supply unit, respectively, to the cooling water injection nozzle, so that the cooling water from the cooling water injection nozzle is sprayed over a machining part (including a machining surface of the tool and a machined surface of a workpiece).
- the housing 10 has a helical groove 10 formed in an outer peripheral surface thereof, and a tube 11 such as a flexible tube is helically wound around the housing 1 along the groove 10 .
- a tube 11 such as a flexible tube is helically wound around the housing 1 along the groove 10 .
- One end of the tube 11 is connected to a bifurcated connection tube 12 (one example of mist generating means), and the other end of the tube is open to the atmosphere.
- the bifurcated connection tube 12 has a confluent portion 13 connected to the one end of the tube 11 , and two branch portions 14 , 15 branched from the confluent portion 13 .
- the branch portions 14 is connected to the cooling liquid supply unit via a hose or the like, and the branch portion 15 is connected to the compressed air supply unit via a hose or the like.
- cooling water is supplied from the cooling liquid supply unit to the cooling water injection nozzle and to the branch portion 14 of the bifurcated connection tube 12 , and compressed air is supplied from the compressed air supply unit to the cooling water injection nozzle and to the branch portion 15 of the bifurcated connection tube. Then, the cooling water is sprayed over the machining part from the cooling water injection nozzle.
- the cooling water and the compressed air respectively supplied to the branch portions 14 and 15 merge and mix with each other in the confluent portion 13 , so that the cooling water is disintegrated into minute water particles in a mist form.
- the resultant cooling mist flows into the tube 11 helically wound around the housing 1 .
- the water particles of the mist evaporate while passing through the tube 11 to cool the housing 1 , and discharge from the other end of the tube 11 into the atmosphere.
- the housing 1 is cooled by passing the cooling mist through the tube 11 helically wound around the housing 1 and withdrawing heat from the housing by the evaporation of the cooling mist.
- the cooling mist may be generated by employing the cooling liquid supply unit and the compressed air supply unit already provided in the machine tool.
- the tube 11 is required, the cooler is inexpensive since there is no need to provide a cooling mist supply unit specifically designed for the cooling of the housing.
- tap water can be used as the cooling water and, hence, even if the cooling mist passed through the tube 11 is discharged from the other end of the tube 11 into the atmosphere, there is no adverse influence on the environment.
- the tube 11 has a simple construction with the other end thereof being open to the atmosphere.
- FIG. 2 is a sectional view illustrating a machine tool cooler according to another embodiment of the present invention.
- This embodiment differs from the embodiment shown in FIG. 1 in that the tube 11 is not wound around the housing 1 along the groove 10 formed in the outer peripheral surface of the housing 10 , but rather a cylindrical body 20 is fitted around the housing 1 in a liquid tight manner so as to close the circumferential open side of the groove 10 .
- a helical channel 21 is defined between the groove 10 and an inner peripheral surface of the cylindrical body 20 .
- One end of the channel 21 is connected to a bifurcated connection tube (mist generating means) 12 via a hose 22 , and the other end of the channel is open to the atmosphere.
- a bifurcated connection tube (mist generating means) 12 via a hose 22
- the other end of the channel is open to the atmosphere.
- other components are the same as in the embodiment of FIG. 1, and like components are denoted by like reference characters.
- This embodiment has similar functions and effects as the embodiment
- FIG. 3 is a sectional view illustrating a machine tool cooler according to a further embodiment of the present invention.
- This embodiment diffes from the embodiment shown in FIG. 1 in that a plurality of channels 25 (only one channel 25 is shown in FIG. 3) are within the housing 1 .
- One end of each of the channels 25 is connected to a bifurcated connection tube (mist generating means) 12 and the other end of each of the channels 25 is open to the atmosphere. Therefore, the tube 11 is not wound around the housing 1 along the groove 10 .
- other components are the same as in the embodiment of FIG. 1, and like components are denoted by like reference characters.
- This embodiment has similar functions and effects as the embodiment of FIG. 1. However, the housing 1 can be cooled from its interior with a more advantageous cooling effect.
- the groove 10 is formed in the outer peripheral surface of the housing 1 , but the formation of the groove 10 is not necessarily required. Further, any of various cooling liquids and lubricating liquids may be used alone or as a mixture instead of the cooling water in the aforesaid embodiments. In the embodiment shown in FIG. 3, the channels 25 may be helically formed in the housing 1 .
- the pulley 4 fixed around the other end portion of the outer periphery of the main spindle 3 is coupled to the rotation shaft of the motor via the belt 5 for driving the main spindle 3 in the embodiments described above, a motor incorporating the main spindle 3 may be employed to drive the main spindle.
- the inventive machine tool cooler is applicable not only to a numerically controlled (NC) lathe, but also to any of various other machine tools such as machining centers and grinding machines.
- NC numerically controlled
- the housing can be cooled by passing the cooling mist through the channel provided in association with the housing which removes heat from the housing by the evaporation of the cooling mist.
- the cooling mist can easily be generated with the use of a cooling liquid supply unit and a compressed air supply unit typically provided in the machine tool.
- a tank containing a cooling liquid, a lubricating liquid or a mixture of the cooling liquid and the lubricating liquid for cooling or lubricating the tool and/or workpiece, and the pump for supplying the cooling liquid or the like from the tank to the cooling liquid injection nozzle typically are provided in the machine tool as the cooling liquid supply unit, and further an air compressor for supplying compressed air to eject the cooling liquid or the like from the cooling liquid injection nozzle typically is provided in the machine tool as the compressed air supply unit. Therefore, the generation of the cooling mist easily can be achieved by mixing the cooling liquid supplied from the cooling liquid supply unit with the compressed air supplied from the compressed air supply unit to produce the cooling liquid into a mist form.
- the channel comprises a tube helically wound around the housing in the inventive machine tool cooler
- the channel can be formed from an inexpensive tubular material.
- the housing can be cooled from its interior with a more advantageous cooling effect.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
A less expensive cooler for a machine tool comprises a main spindle (3), a housing (1) rotatably supporting the main spindle (3) via bearing (2), and a tube (11) wound around the housing (1) for passing a cooling mist therethrough.
Description
- 1. Field of the Invention
- The present invention relates to a cooler for a machine tool.
- 2. Desription of the Art
- In conventional machine tools, a main spindle is rotatably supported by a housing via a bearing, so that heat generated by the rotation of the main spindle is conducted to the housing. Therefore, a cooler for cooling the housing is provided in such a machine tool. One example of such a cooler is the structure for cooling a spindle unit as shown in FIG. 4 which is disclosed in Japanese Unexamined Patent Publication No. 6-31585 (1994). The spindle unit includes a
housing 31, aspindle cylinder 32 fixed within thehousing 31, and amain spindle 33 rotatably supported in thehousing 31 via abearing unit 34 and an upper bearing (not shown). The cooling structure of the spindle unit includes a cooling liquid channel defined between ahelical groove 35 formed in an outer peripheral surface of themain spindle 33 and a bearinginner cylinder 36 of thebearing unit 34, and another cooling liquid channel defined between ahelical groove 37 formed in an outer peripheral surface of thespindle cylinder 32 and thehousing 31. In FIG. 4, the spindle unit further includes a coolingliquid supply path 38, a coolingliquid drain path 39, a coolingliquid inlet port 40 and a coolingliquid outlet port 41. In general, a cooling liquid is supplied to the respective cooling liquid channels by a cooling liquid supply unit which has an orifice for flow rate control, a sensor for temperature control and the like. - However, a cooling liquid supply unit specifically designed for supplying the cooling liquid to the cooling liquid channels in the spindle unit cooling structure is quite expensive, thereby making the machine tool itself more expensive.
- In view of the foregoing, it is an object of the present invention to provide a less expensive cooler for a machine tool.
- In accordance with the present invention to achieve the aforesaid object, there is provided a cooler for a machine tool, which comprises a main spindle, a housing rotatably supporting the main spindle via a bearing, and a channel provided in association with the housing for passing a cooling mist therethrough.
- In the inventive machine tool cooler having the main spindle and the housing rotatably supporting the main spindle via the bearing, the channel for passing the cooling mist therethrough is in association with the housing. Therefore, the housing can be cooled by passing the cooling mist through the channel in association with the housing and taking heat away from the housing by evaporation of the cooling mist. In addition, the cooling mist can easily be generated with the use of a cooling liquid supply unit and a compressed air supply unit, both typically included in the machine tool. More specifically, a tank containing a cooling liquid, a lubricating liquid or a mixture of the cooling liquid and the lubricating liquid for cooling or lubricating a tool, and a pump for supplying the cooling liquid or the like from the tank to a cooling liquid injection nozzle typically are provided in the machine tool as the cooling liquid supply unit. In addition, an air compressor for supplying compressed air to eject the cooling liquid or the like from the cooling liquid injection nozzle typically is provided in the machine tool as the compressed air supply unit. Therefore, the generation of the cooling mist can easily be achieved by mixing the cooling liquid supplied from the cooling liquid supply unit with the compressed air supplied from the compressed air supply unit so as to produce the cooling liquid in mist form. By thus employing the cooling liquid supply unit and the compressed air supply unit provided in the machine tool, the need for providing a relatively expensive cooling liquid supply unit specifically designed for the cooling of the housing can be obviated which thereby reduces the cost of the machine tool.
- Where the channel comprises a tube helically wound around the housing in the inventive machine tool cooler, the channel can be formed from a less expensive tubular material.
- Where the channel is provided within the housing in the subject machine tool cooler, the housing can be cooled from its interior with a more advantageous cooling effect.
- FIG. 1 is a sectional view illustrating a machine tool cooler according to one embodiment of the present invention;
- FIG. 2 is a sectional view illustrating a machine tool cooler according to another embodiment of the present invention;
- FIG. 3 is a sectional view illustrating a machine tool cooler according to further another embodiment of the present invention; and
- FIG. 4 is a sectional view illustrating a machine tool cooler according to the prior art.
- Embodiments of the present invention will hereinafter be described in detail with reference to the attached drawings.
- FIG. 1 is a sectional view illustrating a cooler for a machine tool in accordance with one embodiment of the present invention. In this embodiment, the machine tool is a numerically controlled (NC) lathe. In FIG. 1, a generally
cylindrical housing 1 fixed to a headstock (not shown) has a center through-hole 1 a, and a pair ofbearings 2 are fixed to longitudinally opposite portions of the inner periphery of the center through-hole 1 a. A generally cylindricalmain spindle 3 within through-hole 1 a is rotatably supported by thebearings 2. A chuck (not shown) is provided at one end (a right end in FIG. 1 ) of themain spindle 3. Apulley 4 is fixed around the other end portion (a left end portion in FIG. 1) of themain spindle 3, and is coupled to a rotation shaft (not shown) of a motor via abelt 5. A draw bar and the like (not shown) are provided in the center through-hole 3 a of themain spindle 3. In FIG. 1, anannular fixture 6 is fitted around themain spindle 3. - The machine tool includes a cooling liquid supply unit (not shown) including a tank containing a cooling water (cooling liquid) such as tap water and a pump for supplying the cooling water from the tank to a cooling water injection nozzle (not shown). The machine tool further includes a compressed air supply unit (not shown) including an air compressor for supplying compressed air to the cooling water injection nozzle. During machining, the cooling water and the compressed air are supplied from the cooling liquid supply unit and the compressed air supply unit, respectively, to the cooling water injection nozzle, so that the cooling water from the cooling water injection nozzle is sprayed over a machining part (including a machining surface of the tool and a machined surface of a workpiece).
- The
housing 10 has ahelical groove 10 formed in an outer peripheral surface thereof, and atube 11 such as a flexible tube is helically wound around thehousing 1 along thegroove 10. One end of thetube 11 is connected to a bifurcated connection tube 12 (one example of mist generating means), and the other end of the tube is open to the atmosphere. The bifurcatedconnection tube 12 has aconfluent portion 13 connected to the one end of thetube 11, and twobranch portions confluent portion 13. Thebranch portions 14 is connected to the cooling liquid supply unit via a hose or the like, and thebranch portion 15 is connected to the compressed air supply unit via a hose or the like. - When the cooling liquid supply unit and the compressed air supply unit are operated in the machining of a workpiece, cooling water is supplied from the cooling liquid supply unit to the cooling water injection nozzle and to the
branch portion 14 of the bifurcatedconnection tube 12, and compressed air is supplied from the compressed air supply unit to the cooling water injection nozzle and to thebranch portion 15 of the bifurcated connection tube. Then, the cooling water is sprayed over the machining part from the cooling water injection nozzle. On the other hand, the cooling water and the compressed air respectively supplied to thebranch portions confluent portion 13, so that the cooling water is disintegrated into minute water particles in a mist form. The resultant cooling mist flows into thetube 11 helically wound around thehousing 1. The water particles of the mist evaporate while passing through thetube 11 to cool thehousing 1, and discharge from the other end of thetube 11 into the atmosphere. - In this embodiment, the
housing 1 is cooled by passing the cooling mist through thetube 11 helically wound around thehousing 1 and withdrawing heat from the housing by the evaporation of the cooling mist. In addition, the cooling mist may be generated by employing the cooling liquid supply unit and the compressed air supply unit already provided in the machine tool. Although thetube 11 is required, the cooler is inexpensive since there is no need to provide a cooling mist supply unit specifically designed for the cooling of the housing. Further, tap water can be used as the cooling water and, hence, even if the cooling mist passed through thetube 11 is discharged from the other end of thetube 11 into the atmosphere, there is no adverse influence on the environment. Furthermore thetube 11 has a simple construction with the other end thereof being open to the atmosphere. - FIG. 2 is a sectional view illustrating a machine tool cooler according to another embodiment of the present invention. This embodiment differs from the embodiment shown in FIG. 1 in that the
tube 11 is not wound around thehousing 1 along thegroove 10 formed in the outer peripheral surface of thehousing 10, but rather acylindrical body 20 is fitted around thehousing 1 in a liquid tight manner so as to close the circumferential open side of thegroove 10. Thus, ahelical channel 21 is defined between thegroove 10 and an inner peripheral surface of thecylindrical body 20. One end of thechannel 21 is connected to a bifurcated connection tube (mist generating means) 12 via ahose 22, and the other end of the channel is open to the atmosphere. In this embodiment, other components are the same as in the embodiment of FIG. 1, and like components are denoted by like reference characters. This embodiment has similar functions and effects as the embodiment of FIG. 1. - FIG. 3 is a sectional view illustrating a machine tool cooler according to a further embodiment of the present invention. This embodiment diffes from the embodiment shown in FIG. 1 in that a plurality of channels25 (only one
channel 25 is shown in FIG. 3) are within thehousing 1. One end of each of thechannels 25 is connected to a bifurcated connection tube (mist generating means) 12 and the other end of each of thechannels 25 is open to the atmosphere. Therefore, thetube 11 is not wound around thehousing 1 along thegroove 10. In this embodiment, other components are the same as in the embodiment of FIG. 1, and like components are denoted by like reference characters. This embodiment has similar functions and effects as the embodiment of FIG. 1. However, thehousing 1 can be cooled from its interior with a more advantageous cooling effect. - In the embodiments described above, the
groove 10 is formed in the outer peripheral surface of thehousing 1, but the formation of thegroove 10 is not necessarily required. Further, any of various cooling liquids and lubricating liquids may be used alone or as a mixture instead of the cooling water in the aforesaid embodiments. In the embodiment shown in FIG. 3, thechannels 25 may be helically formed in thehousing 1. - Although the
pulley 4 fixed around the other end portion of the outer periphery of themain spindle 3 is coupled to the rotation shaft of the motor via thebelt 5 for driving themain spindle 3 in the embodiments described above, a motor incorporating themain spindle 3 may be employed to drive the main spindle. - The inventive machine tool cooler is applicable not only to a numerically controlled (NC) lathe, but also to any of various other machine tools such as machining centers and grinding machines.
- In the machine tool cooler according to the present invention, the housing can be cooled by passing the cooling mist through the channel provided in association with the housing which removes heat from the housing by the evaporation of the cooling mist. In addition, the cooling mist can easily be generated with the use of a cooling liquid supply unit and a compressed air supply unit typically provided in the machine tool. More specifically, a tank containing a cooling liquid, a lubricating liquid or a mixture of the cooling liquid and the lubricating liquid for cooling or lubricating the tool and/or workpiece, and the pump for supplying the cooling liquid or the like from the tank to the cooling liquid injection nozzle typically are provided in the machine tool as the cooling liquid supply unit, and further an air compressor for supplying compressed air to eject the cooling liquid or the like from the cooling liquid injection nozzle typically is provided in the machine tool as the compressed air supply unit. Therefore, the generation of the cooling mist easily can be achieved by mixing the cooling liquid supplied from the cooling liquid supply unit with the compressed air supplied from the compressed air supply unit to produce the cooling liquid into a mist form. By thus employing the cooling liquid supply unit and the compressed air supply unit already provided in the machine tool, the need for providing a relatively expensive cooling liquid supply unit specifically designed for the cooling of the housing can be obviated thereby reducing the cost of the machine tool.
- Where the channel comprises a tube helically wound around the housing in the inventive machine tool cooler, the channel can be formed from an inexpensive tubular material.
- Where the channel is provided within the housing in the inventive machine tool cooler, the housing can be cooled from its interior with a more advantageous cooling effect.
Claims (3)
1. A cooler for a machine tool, comprising a main spindle, a housing rotatably supporting the main spindle via a bearing, and a channel provided in association with the housing for passing a cooling mist therethrouqh.
2. A cooler as set forth in claim 1 , wherein the channel comprises a tube helically wound around the housing.
3. A cooler as set forth in claim 1 , wherein the channel is provided within the housing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000346821A JP2002144190A (en) | 2000-11-14 | 2000-11-14 | Cooling device for machine tool |
JP2000-346821 | 2000-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020056279A1 true US20020056279A1 (en) | 2002-05-16 |
Family
ID=18820637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/987,441 Abandoned US20020056279A1 (en) | 2000-11-14 | 2001-11-14 | Cooler for machine tool |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020056279A1 (en) |
EP (1) | EP1205278A1 (en) |
JP (1) | JP2002144190A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040211208A1 (en) * | 2003-04-25 | 2004-10-28 | Stephen Permetti | Mist cooler |
US20150285264A1 (en) * | 2014-04-07 | 2015-10-08 | Union Pacific Railroad Company | Air compressor with self contained cooling system |
US10012810B2 (en) * | 2016-05-13 | 2018-07-03 | Nlight, Inc. | Double helix coolant path for high power fiber connector |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5959811B2 (en) * | 2011-07-14 | 2016-08-02 | 電源開発株式会社 | Burner |
KR101517905B1 (en) * | 2013-12-13 | 2015-05-06 | 한국전기연구원 | Hybrid-extinction type gas circuit breaker with cooling device |
JP2016083770A (en) * | 2016-02-01 | 2016-05-19 | 住友化学株式会社 | Cutting method and cutting device, manufacturing method for optical member |
CN111843045A (en) * | 2020-06-05 | 2020-10-30 | 泉州市海恩德机电科技发展有限公司 | Cooling liquid shunting and radiating cutting machine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0811349B2 (en) * | 1989-12-26 | 1996-02-07 | 日本電装株式会社 | Machine tool with spindle structure |
US5150994A (en) * | 1991-09-23 | 1992-09-29 | Kaven Hsu | Spindle means of machine center |
JPH05285781A (en) * | 1992-04-10 | 1993-11-02 | Sony Corp | Air spindle unit |
-
2000
- 2000-11-14 JP JP2000346821A patent/JP2002144190A/en active Pending
-
2001
- 2001-11-14 US US09/987,441 patent/US20020056279A1/en not_active Abandoned
- 2001-11-14 EP EP01127028A patent/EP1205278A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040211208A1 (en) * | 2003-04-25 | 2004-10-28 | Stephen Permetti | Mist cooler |
US6837065B2 (en) | 2003-04-25 | 2005-01-04 | Stephen Permetti | Mist cooler |
US20150285264A1 (en) * | 2014-04-07 | 2015-10-08 | Union Pacific Railroad Company | Air compressor with self contained cooling system |
US10012810B2 (en) * | 2016-05-13 | 2018-07-03 | Nlight, Inc. | Double helix coolant path for high power fiber connector |
Also Published As
Publication number | Publication date |
---|---|
JP2002144190A (en) | 2002-05-21 |
EP1205278A1 (en) | 2002-05-15 |
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