WO2016194750A1 - 空気圧縮装置 - Google Patents

空気圧縮装置 Download PDF

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Publication number
WO2016194750A1
WO2016194750A1 PCT/JP2016/065533 JP2016065533W WO2016194750A1 WO 2016194750 A1 WO2016194750 A1 WO 2016194750A1 JP 2016065533 W JP2016065533 W JP 2016065533W WO 2016194750 A1 WO2016194750 A1 WO 2016194750A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling
compressor
air
housing
fan device
Prior art date
Application number
PCT/JP2016/065533
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
将 黒光
洋司 高嶋
裕 中川
高橋　亮
辰雄 宮内
充良 浜崎
源平 田中
徹 水船
Original Assignee
ナブテスコ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ナブテスコ株式会社 filed Critical ナブテスコ株式会社
Priority to EP19187990.7A priority Critical patent/EP3581799B1/en
Priority to JP2017521867A priority patent/JP6770954B2/ja
Priority to SG11201709423WA priority patent/SG11201709423WA/en
Priority to EP16803185.4A priority patent/EP3306087B1/en
Priority to CN201680031507.0A priority patent/CN107614873B/zh
Publication of WO2016194750A1 publication Critical patent/WO2016194750A1/ja

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Classifications

    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids

Definitions

  • the present invention relates to an air compression device that generates compressed air.
  • Compressed air generating device is used for various purposes.
  • Compressed air generated by an air compressor mounted on a vehicle may be supplied to a brake device that applies a braking force to the vehicle or a pneumatic device that opens and closes the door of the vehicle.
  • Patent Document 1 proposes an air compression device mounted on a railway vehicle.
  • the air compressor has a housing that houses various internal devices such as a compressor and an aftercooler.
  • the casing can appropriately protect the internal device from a stepping stone or the like during traveling of the vehicle.
  • the housing has a soundproof function for sound emitted from the internal device and a dustproof function for the internal device.
  • the housing has the above-described protection function, but causes a harmful effect of trapping heat. Therefore, the conventional air compressor cannot cool the compressed air efficiently.
  • An object of the present invention is to provide an air compression device capable of efficiently cooling compressed air.
  • An air compressor includes a compressor that generates compressed air, a housing that forms a housing space in which the compressor is housed, and a cooling unit that cools the compressed air outside the housing. And a protective cover that at least partially covers the cooling unit.
  • the air compression device described above has a cooling part covered with a protective cover outside the housing, so that the stepping stones when traveling the vehicle are compared to the case where the cooling part is installed in a housing space that tends to be hot. Thus, the compressed air can be efficiently cooled while protecting the cooling part.
  • FIG. 4 is another schematic perspective view of the air compression device shown in FIG. 2.
  • FIG. 3 is a schematic cross-sectional view of a protective cover of the air compression device shown in FIG. 2.
  • FIG. 3 is a schematic cross-sectional view of a protective cover of the air compression device shown in FIG. 2.
  • FIG. 3 is a schematic perspective view of the control part of the air compression apparatus shown by FIG. 3 (3rd Embodiment).
  • FIG. 6 (4th Embodiment).
  • FIG. 6 5th Embodiment.
  • FIG. 3 is a schematic perspective view of the air compression device shown in FIG. 2. It is a schematic perspective view of the air compression apparatus shown by FIG. 2 (6th Embodiment). It is a schematic perspective view of the cold flow adjustment box of the air compressor shown in FIG.
  • FIG. 11B is a schematic rear view of the cold flow adjustment box shown in FIG. 11A. It is a schematic plan view showing the internal structure of the air compression apparatus shown by FIG. 2 (7th Embodiment).
  • FIG. 13 is a schematic cross-sectional view of an intake guide structure of the air compression device shown in FIG. 12.
  • FIG. 14 is a schematic enlarged cross-sectional view of the intake guide structure shown in FIG. 13.
  • FIG. 13 is a schematic enlarged perspective view of a part of a guide tube of the air compression device shown in FIG. 12.
  • FIG. 1 is a conceptual diagram of an air compressor 100 according to the first embodiment. With reference to FIG. 1, an air compressor 100 is described.
  • the air compressor 100 includes a compressor 200, a housing 300, a cooling unit 400, and a protective cover 500.
  • the compressor 200 may be a general scroll compressor.
  • the compressor 200 may be a general rotary compressor.
  • the compressor 200 may be a general swing compressor.
  • the compressor 200 may be a typical reciprocating compressor. The principle of this embodiment is not limited to a specific structure of the compressor 200.
  • the housing 300 forms an accommodation space 310 in which the compressor 200 is accommodated. Since the compressor 200 compresses air and produces
  • the cooling unit 400 that cools the compressed air is disposed outside the housing 300.
  • the cooling unit 400 may be directly held by the housing 300.
  • the cooling unit 400 may be held by another holding member.
  • the principle of this embodiment is not limited to a specific holding structure for the cooling unit 400.
  • Compressed air generated by the compressor 200 flows into the cooling unit 400.
  • the cooling unit 400 installed outside the housing 300 is installed in the housing space 310 of the housing 300. Compared to the case, the compressed air can be efficiently cooled.
  • the cooling unit 400 may have a tubular body that meanders while extending compressed air.
  • the tubular body may be formed of a material having high thermal conductivity to improve heat dissipation.
  • a large number of heat radiation fins may be attached to the tube.
  • the cooling unit 400 may have other structures that can cool the compressed air. The principle of this embodiment is not limited to a specific structure of the cooling unit 400.
  • the protective cover 500 at least partially covers the cooling unit 400. Therefore, the cooling unit 400 is appropriately protected from an object (for example, stone) flying toward the cooling unit 400.
  • the protective cover 500 may hold the cooling unit 400.
  • the protective cover 500 may have a ventilation structure that allows passage of airflow. A designer who designs the air compressor 100 may give the protective cover 500 various structures. Therefore, the principle of the present embodiment is not limited to a specific structure of the protective cover 500.
  • Second Embodiment The designer can design various air compression apparatuses based on the design principle described in relation to the first embodiment.
  • an exemplary air compressor is described.
  • FIG. 2 is a schematic perspective view of an air compressor 100A according to the second embodiment.
  • the air compressor 100A will be described with reference to FIGS. 1 and 2.
  • the air compressor 100A includes a housing 300A, a cooling unit 400A, a protective cover 500A, a dehumidifying unit 610, a control unit 620, and a guide tube 700. Similar to the first embodiment, a compressor (not shown) is disposed in the housing 300A. The guide tube 700 guides the compressed air generated by the compressor to the cooling unit 400A.
  • the housing 300A corresponds to the housing 300 described with reference to FIG.
  • the housing 300A includes a second wall 320 having a substantially rectangular shape.
  • the protective cover 500A, the dehumidifying unit 610, and the control unit 620 are attached to the outside of the second wall 320 (outside the housing 300A).
  • Cooling unit 400A is held by protective cover 500A.
  • the second wall part 320 partitions the space in which the cooling part 400A is arranged (that is, the space surrounded by the protective cover 500A) from the internal space of the casing 300A in which the compressor is arranged. It becomes difficult to be affected. Therefore, the cooling function of the cooling unit 400A is maintained at a higher level than when the cooling unit is installed in the internal space of the housing 300A. Since the second wall 320 is used to hold various devices, it may be formed more robustly than the protective cover 500A.
  • the guide tube 700 is connected to a compressor in the housing 300A.
  • the compressed air generated by the compressor is guided by the guide tube 700 to the cooling unit 400A installed outside the housing 300A.
  • the cooling unit 400A includes a cooling pipe 410 through which compressed air flows, an upstream connection end 420 located upstream of the cooling pipe 410, and a downstream connection end 440 located downstream of the cooling pipe 410.
  • the upstream connection end 420 is connected to the guide tube 700 outside the housing 300A.
  • the compressed air guided by the guide pipe 700 flows into the cooling pipe 410 from the upstream connection end 420.
  • the cooling pipe 410 forms a flow section of compressed air that is long in the horizontal direction.
  • the cooling pipe 410 gradually guides the compressed air downward while meandering.
  • a downstream connection end 440 disposed below the upstream connection end 420 is connected to the downstream end of the cooling pipe 410 and the dehumidifying unit 610.
  • the compressed air is cooled while flowing along the cooling pipe 410.
  • the sufficiently cooled compressed air flows into the dehumidifying unit 610 from the downstream connection end 440.
  • the cooling unit 400A corresponds to the cooling unit 400 described with reference to FIG.
  • the dehumidifying unit 610 is disposed below the cooling unit 400A.
  • the dehumidifying unit 610 includes a connecting pipe 611 extending from the cooling unit 400A, a dehumidifying mechanism 612 positioned downstream of the connecting pipe 611, and a delivery port 613 positioned further downstream.
  • the connection pipe 611 is connected to the downstream connection end 440 of the cooling unit 400A.
  • the connection pipe 611 guides the cooled compressed air downward from the downstream connection end 440.
  • the compressed air flows into the dehumidifying mechanism 612 through the connection pipe 611.
  • the dehumidifying mechanism 612 dehumidifies the compressed air.
  • the dehumidifying mechanism 612 may have various structures (for example, a structure having a desiccant or a hollow fiber membrane) applied to a known dehumidifying unit that dehumidifies compressed air.
  • the principle of this embodiment is not limited to a specific structure of the dehumidifying mechanism 612.
  • Compressed air is sent to a downstream pneumatic device through a delivery port 613 after dehumidification processing by the dehumidification mechanism 612.
  • the delivery port 613 may be connected to a storage tank designed to store compressed air.
  • control unit 620 is disposed below the cooling pipe 410 that meanders.
  • the control unit 620 is electrically connected to various devices in the housing 300A.
  • the control unit 620 controls the compressor and other devices in the housing 300A.
  • FIG. 3 is another schematic perspective view of another air compressor 100A.
  • the air compressor 100A will be described with reference to FIGS.
  • the air compressor 100A further includes four external fan devices 430 arranged outside the housing 300A.
  • the four external fan devices 430 generate a cooling airflow toward the cooling pipe 410 of the cooling unit 400A.
  • the compressed air in the cooling pipe 410 is cooled by the cooling airflow sent from the four external fan devices 430.
  • the air compressor may include one external fan device 430.
  • the air compressor may comprise two or three external fan devices 430. Further alternatively, the air compressor may include more than four external fan devices 430.
  • the designer can determine how many outer fan devices 430 are incorporated into the air compressor based on the lateral length of the cooling pipe 410 and the width of the outer fan device 430. Therefore, the principle of this embodiment is not limited at all depending on how many external fan devices 430 are attached to the air compression device.
  • the second wall portion 320 of the housing 300 ⁇ / b> A includes an outer duct portion 321 that is long in the horizontal direction. As shown in FIG. 2, the outer duct portion 321 is entirely surrounded by a protective cover 500A. The outer duct portion 321 forms a substantially rectangular opening region that is long in the horizontal direction. Heat generated in the casing 300A (cooling airflow after the compressor is cooled by the action of a cooling mechanism provided in the casing 300A) is released to the outside of the casing 300A through the outer duct portion 321.
  • the outer duct portion 321 includes an upper wall 322, a lower wall 323, a support wall 324, and a side wall 325.
  • the upper wall 322 extends in the horizontal direction.
  • the lower wall 323 extends in the horizontal direction below the upper wall 322.
  • the guide tube 700 that guides the compressed air to the cooling unit 400A extends from the housing 300A between the upper wall 322 and the lower wall 323 so as to pass through the outer duct unit 321.
  • the guide tube 700 extending from the inside of the housing 300 ⁇ / b> A is bent toward the support wall 324 and penetrates the support wall 324.
  • the support wall 324 supports the guide tube 700. As shown in FIG.
  • the guide tube 700 after passing through the support wall 324, the guide tube 700 is connected to the upstream connection end 420 of the cooling unit 400A near the support wall 324.
  • the side wall 325 of the outer duct portion 321 is disposed on the opposite side of the support wall 324.
  • the four external fan devices 430 that generate cooling air toward the cooling unit 400A are positioned below the outer duct unit 321 and are aligned in the horizontal direction along the lower wall 323 of the outer duct unit 321.
  • the four external fan devices 430 are disposed between the lower wall 323 and the set of the dehumidifying unit 610 and the control unit 620.
  • FIG. 4 is a schematic cross-sectional view of the protective cover 500A.
  • the protective cover 500A will be described with reference to FIGS.
  • the protective cover 500 ⁇ / b> A includes a baffle plate 510 and a ventilation plate 520.
  • the baffle plate 510 lies substantially horizontally below the cooling pipe 410.
  • the ventilation plate 520 is erected substantially vertically from the baffle plate 510 and faces the outer fan device 430.
  • the second wall 320 of the housing 300A includes a mounting plate 326 to which the protective cover 500A and the external fan device 430 are attached.
  • the mounting plate 326 has a substantially rectangular opening region 328 that is long in the horizontal direction.
  • the outer duct portion 321 is disposed so as to surround an opening region 328 formed in the mounting plate 326 (see FIG. 3).
  • the outer fan device 430 is disposed between the mounting plate 326 and the cooling pipe 410. Regarding the height position of the outer fan device 430, the outer fan device 430 is disposed between the lower wall 323 of the outer duct portion 321 and the baffle plate 510 of the protective cover 500A.
  • the external fan device 430 sends the cooling air to the ventilation plate 520. As a result, the compressed air in the cooling pipe 410 positioned between the outer fan device 430 and the ventilation plate 520 is appropriately cooled.
  • the ventilation plate 520 includes a rectangular frame plate 521 and an expanded metal 522.
  • the expanded metal 522 is surrounded by a rectangular frame plate 521. Since a large number of ventilation holes are formed in the expanded metal 522, most of the cooling air generated by the outer fan device 430 is discharged to the outside of the protective cover 500A through the expanded metal 522. Therefore, the compressed air in the cooling pipe 410 is efficiently cooled.
  • a punching metal or other plate material having a ventilation structure may be used instead of the expanded metal 522. The principle of this embodiment is not limited to the specific ventilation structure of the protective cover 500A.
  • the external fan device 430 is spaced apart from the mounting plate 326 of the housing 300A in the horizontal direction. Accordingly, a suction space 431 (see FIG. 4) is formed between the outer fan device 430 and the mounting plate 326. The outer fan device 430 sucks air from the suction space 431 and sends the cooling air toward the cooling pipe 410 and the ventilation plate 520.
  • the lower wall 323 of the outer duct part 321 forms the upper boundary of the suction space 431.
  • the internal space of the outer duct portion 321 is used for releasing the warmed air in the housing 300A. Since the lower wall 323 partitions the suction space 431 from the inner space of the outer duct portion 321, the outer fan device 430 does not suck in the air warmed in the housing 300 ⁇ / b> A.
  • the outer duct portion 321 may be formed of a material having better heat insulation than the mounting plate 326 of the housing 300A.
  • the baffle plate 510 of the protective cover 500A includes an opposing edge 511 that faces the mounting plate 326 of the housing 300A.
  • the facing edge 511 is separated from the mounting plate 326 of the housing 300A. Therefore, the opposing edge 511 forms an opening region 432 (see FIG. 4) that continues to the suction space 431 below the outer fan device 430 in cooperation with the mounting plate 326 of the housing 300A. Therefore, the outer fan device 430 sucks the outside air in the space below the cooling unit 400A through the opening region 432 and the suction space 431, and sends the cooling air toward the cooling pipe 410 and the ventilation plate 520.
  • the external fan device described in connection with the second embodiment can also contribute to cooling of the control unit.
  • a cooling technique of the control unit will be described.
  • FIG. 5 is a schematic perspective view of the control unit 620.
  • the control unit 620 will be described with reference to FIGS. 3 and 5.
  • the control unit 620 includes a rectangular box-shaped control box 621 and various electronic devices 622.
  • the electronic device 622 is accommodated in the control box 621. At least one of the electronic devices 622 is used to control a compressor (not shown) disposed in the housing 300A.
  • the control box 621 includes a top plate 623, an input connector wall 624, and an output connector wall 625.
  • the top plate 623 is located below the outer fan device 430.
  • the input connector wall 624 includes a vertical plate 626 and two input connectors 627.
  • the vertical plate 626 is erected substantially vertically.
  • the input connector 627 protrudes outward from the vertical plate 626. Power may be supplied to the electronic device 622 through the input connector 627.
  • Electronic device 622 may generate various signals for controlling and driving the compressor under power supply through input connector 627.
  • the output connector wall 625 includes a mounting plate 628 and five output connectors 629.
  • the mounting plate 628 cooperates with the top plate 623 to form a corner portion extending in the horizontal direction, and cooperates with the vertical plate 626 of the input connector wall 624 to form a corner portion extending in the vertical direction. And side edges.
  • the attachment plate 628 is attached to the housing 300A.
  • the output connector 629 protrudes from the mounting plate 628.
  • the output connector 629 is used for electrical connection with various devices arranged in the housing 300A.
  • a part of the five output connectors 629 may be used to output a control signal to a drive source (not shown) that drives the compressor.
  • Another part of the five output connectors 629 may be used to send a detection signal from a detection element that detects an operating state of the compressor to the electronic device 622.
  • the top plate 623 of the control box 621 includes a first opening edge 631, a second opening edge 632, a third opening edge 633, and a fourth opening edge 634.
  • the first opening edge 631, the second opening edge 632, the third opening edge 633, and the fourth opening edge 634 form a rectangular opening 630.
  • the first opening edge 631 and the second opening edge 632 are substantially parallel to the mounting plate 628 of the output connector wall 625.
  • the first opening edge 631 is located between the second opening edge 632 and the mounting plate 628 of the output connector wall 625.
  • the third opening edge 633 and the fourth opening edge 634 are substantially parallel to the vertical plate 626 of the input connector wall 624.
  • the third opening edge 633 is located between the fourth opening edge 634 and the vertical plate 626 of the input connector wall 624.
  • the control box 621 includes a first rib 641, a second rib 642, a third rib 643, and a fourth rib 644.
  • the first rib 641, the second rib 642, the third rib 643, and the fourth rib 644 protrude upward from the top plate 623.
  • the first rib 641 is substantially C-shaped.
  • the first rib 641 includes an intermediate portion 645, a first bent portion 646, and a second bent portion 647.
  • the intermediate portion 645 extends along the first opening edge 631.
  • the first bent portion 646 and the second bent portion 647 are bent from the intermediate portion 645 and extend from the first opening edge 631 toward the second opening edge 632.
  • the first bent portion 646 is located closer to the third rib 643 than the fourth rib 644.
  • the second bent portion 647 is located closer to the fourth rib 644 than the third rib 643.
  • the second rib 642 extends substantially linearly along the second opening edge 632.
  • the third rib 643 is formed in a substantially J shape.
  • the third rib 643 includes a first portion 651, a second portion 652, and a third portion 653.
  • the first portion 651 extends along the third opening edge 633.
  • the second portion 652 is bent from the first portion 651 and extends along the first opening edge 631.
  • the third portion 653 is bent from the second portion 652 and extends from the first opening edge 631 toward the second opening edge 632.
  • the third portion 653 of the third rib 643 faces the first bent portion 646 of the first rib 641.
  • the third portion 653 is separated from the first bent portion 646. Therefore, a flow path 654 is formed between the first bent portion 646 and the third portion 653.
  • the fourth rib 644 is formed in a substantially L shape.
  • the fourth rib 644 includes a first portion 655, a second portion 656, and a third portion 657.
  • the first portion 655 extends along the fourth opening edge 634.
  • the second portion 656 is bent from the first portion 655 and extends along the first opening edge 631.
  • the third portion 657 is bent from the second portion 656 and extends from the first opening edge 631 toward the second opening edge 632.
  • the third portion 657 of the fourth rib 644 faces the second bent portion 647 of the first rib 641.
  • the third portion 657 is separated from the second bent portion 647. Accordingly, a flow path 658 is formed between the second bent portion 647 and the third portion 657.
  • FIG. 6 is another schematic perspective view of the control unit 620.
  • the control unit 620 will be further described with reference to FIGS. 3 to 6.
  • the control box 621 includes a cover 659 and an intake wall 660.
  • the cover 659 covers the rectangular opening 630 described with reference to FIG.
  • the intake wall 660 is erected on the opposite side of the input connector wall 624 described with reference to FIG.
  • the intake wall 660 includes an intake window 661.
  • the intake window 661 allows the passage of air.
  • the cover 659 forms an open end 662 of the flow path 654 (see FIG. 5) in cooperation with the first rib 641 (see FIG. 5) and the third rib 643 (see FIG. 5). Accordingly, the flow path 654 opens toward the housing 300A.
  • the cover 659 forms an open end 663 of the flow path 658 (see FIG. 5) in cooperation with the first rib 641 and the fourth rib 644 (see FIG. 5). Accordingly, the flow path 658 opens toward the housing 300A.
  • the external fan device 430 places the suction space 431 in a negative pressure environment. Since the open ends 662 and 663 (see FIG. 6) of the flow paths 654 and 658 are located below the suction space 431, the air in the control box 621 is sucked into the suction space 431 through the flow paths 654 and 658. It is. Thereafter, the air sucked out of the control box 621 is sent out as cooling air toward the cooling pipe 410 (see FIG. 4) by the outer fan device 430. Therefore, the designer does not have to arrange a cooling facility having an excessively high cooling capacity in the control box 621. If the outer fan device 430 can sufficiently suck the air in the control box 621, the designer does not have to arrange the cooling equipment in the control box 621.
  • the external fan device 430 can suck out the air in the control box 621. During this time, outside air flows from the intake window 661. Therefore, in the control box 621, an internal airflow is generated from the intake window 661 toward the open ends 662 and 663 of the flow paths 654 and 658.
  • the electronic device 622 (see FIG. 5) in the control box 621 is appropriately cooled by the internal airflow.
  • FIG. 7 is a schematic diagram showing the internal structure of the control unit 620.
  • the control unit 620 will be described with reference to FIGS. 3, 6, and 7.
  • the control unit 620 may include two drivers 671 and a sequencer 672 as the electronic device 622.
  • the driver 671 generates a drive signal for driving a compressor and other devices arranged in the housing 300A (see FIG. 3).
  • the sequencer 672 may receive detection signals generated by various sensors attached to the air compressor 100A (see FIG. 3). In addition, the sequencer 672 may receive various signals from other devices utilized with the air compressor 100A. The sequencer 672 may process these signals and control the driver 671.
  • the driver 671 releases heat at a higher temperature than the sequencer 672. As shown in FIG. 7, since the driver 671 is disposed above the sequencer 672, the heat released by the driver 671 hardly affects the sequencer 672. Therefore, the sequencer 672 can operate stably.
  • the driver 671 is disposed near the cover 659 of the control box 621. As shown in FIG. 6, the cover 659 forms the open ends 662 and 663 as outlets of the air sucked by the outer fan device 430, so that the air around the driver 671 is effectively transferred from the control box 621. Will be sucked out.
  • the driver 671 may be disposed at a height position that intersects a virtual horizontal plane that crosses the intake window 661. In this case, the driver 671 is directly exposed to an internal air flow (air flow from the intake window 661 toward the opening ends 662 and 663) generated in the control box 621 under the operation of the outer fan device 430. . Therefore, the driver 671 is efficiently cooled.
  • the cooling unit, the control unit, and the dehumidifying unit are attached to the outside of the housing. Therefore, the worker can easily access these devices.
  • the connection structure of these devices to the housing will be described.
  • FIG. 8 is a perspective view schematically showing the framework structure of the housing 300A.
  • the housing 300A will be described with reference to FIG.
  • the housing 300A includes a bottom plate 330, a support plate 340, a first column 351, a second column 352, a third column 353, a fourth column 354, an intermediate column 355, a first beam member 356, Second girders 357.
  • the bottom plate 330 has a substantially rectangular shape.
  • Each of the first column 351, the second column 352, the third column 353, and the fourth column 354 extends upward from each of the four corners of the bottom plate 330.
  • the first support column 351 and the third support column 353 are aligned on one diagonal line of the bottom plate 330.
  • the second support column 352 and the fourth support column 354 are aligned on another diagonal line of the bottom plate 330.
  • the first support column 351 and the second support column 352 include a dehumidifying unit 610 (see FIG. 2), a control unit 620 (see FIG. 2), and a second wall unit 320 (see FIG. 2) in which an outer duct unit 321 is formed. Used for mounting.
  • the first girder 356 extends substantially horizontally between the first support column 351 and the second support column 352.
  • the second beam member 357 extends substantially horizontally between the third support column 353 and the fourth support column 354.
  • the support plate 340 is supported by the first beam member 356 and the second beam member 357 and lies on the bottom plate 330.
  • the intermediate column 355 extends substantially vertically from the bottom plate 330 to the first beam member 356 between the first column 351 and the second column 352.
  • the dehumidifying part 610 is attached so as to close a substantially rectangular space surrounded by the second support column 352, the intermediate support column 355, the bottom plate 330, and the first beam member 356.
  • the control unit 620 is attached so as to close a substantially rectangular space surrounded by the first support column 351, the intermediate support column 355, the bottom plate 330, and the first girder member 356.
  • the second wall portion 320 on which the outer duct portion 321 is formed is attached so as to close a substantially rectangular space surrounded by the first support column 351, the second support column 352, and the first girder member 356.
  • the dehumidifying part 610, the control part 620, and the second wall part 320 may be fixed using screws. In this case, the operator can easily separate the dehumidifying unit 610, the control unit 620, and the second wall unit 320 from the housing 300A. Therefore, the operator can easily check and / or repair the air compressor 100A.
  • FIG. 9 is a schematic perspective view of the air compressor 100A. The structure of the housing 300A is further described with reference to FIGS.
  • the housing 300A includes side panels 361 and 362 (see FIGS. 2 and 9), a top plate 370 (see FIG. 9), a rotating cover 380 (see FIG. 9), and a first wall portion 390 (see FIG. 9). (See FIG. 9).
  • the top plate 370 is an upper end of the first support column 351 (see FIG. 8), the second support column 352 (see FIG. 8), the third support column 353 (see FIG. 8), and the fourth support column 354 (see FIG. 8). And lie above the support plate 340 (see FIG. 8).
  • the side panel 361 closes a space surrounded by the second column 352, the third column 353, the bottom plate 330, and the top plate 370.
  • the side panel 362 opposite to the side panel 361 closes a space surrounded by the first column 351, the fourth column 354, the bottom plate 330, and the top plate 370.
  • the rotation cover 380 is attached to the second beam member 357 so as to be rotatable.
  • the rotation cover 380 closes a space surrounded by the second beam member 357, the bottom plate 330, the third support column 353, and the fourth support column 354.
  • the first wall portion 390 is disposed above the rotation cover 380.
  • the first wall portion 390 closes a space surrounded by the second beam member 357, the top plate 370, the third support column 353, and the fourth support column 354.
  • the side panels 361, 362, the top plate 370, and the first wall 390 may be fixed using screws. In this case, the worker can remove the side panels 361, 362, the top plate 370, and the first wall 390, and can easily access various devices arranged in the housing 300A. Therefore, the operator can easily check and / or repair the air compressor 100A.
  • the rotation cover 380 Since the rotation cover 380 is rotatably attached to the second girder member 357, the operator easily pushes the lower end portion of the rotation cover 380 upward to easily enter the space between the bottom plate 330 and the support plate 340. Can be accessed. Therefore, the operator can easily check and / or repair the air compressor 100A.
  • FIG. 10 is a schematic perspective view of the air compressor 100A.
  • the air compressor 100A will be described with reference to FIGS. 1, 2, and 8 to 10.
  • FIG. 10 is a schematic perspective view of the air compressor 100A. The air compressor 100A will be described with reference to FIGS. 1, 2, and 8 to 10.
  • FIG. 10 is a schematic perspective view of the air compressor 100A. The air compressor 100A will be described with reference to FIGS. 1, 2, and 8 to 10. FIG.
  • the air compressor 100A includes a compression mechanism 110 and a cooling mechanism 120.
  • the compression mechanism 110 generates compressed air.
  • the cooling mechanism 120 cools the compression mechanism 110.
  • the compression mechanism 110 includes a compressor 200A, a motor 210, and a transmission mechanism 220.
  • the compressor 200A corresponds to the compressor 200 described with reference to FIG.
  • the compressor 200 ⁇ / b> A is fixed to the upper surface of the support plate 340.
  • the motor 210 is attached to the lower surface of the support plate 340.
  • the motor 210 generates a driving force for driving the compressor 200A under the control of the control unit 620 (see FIG. 2). Since the compressor 200A and the motor 210 are aligned in the vertical direction, the designer can give a small value to the area of the horizontal cross section of the housing 300A.
  • the transmission mechanism 220 transmits driving force from the motor 210 to the compressor 200A.
  • the side panel 362 described with reference to FIG. 9 is erected next to the transmission mechanism 220 and can be easily removed as described in connection with the fifth embodiment.
  • the mechanism 220 can be easily accessed, and the transmission mechanism 220 can be repaired and inspected easily.
  • the transmission mechanism 220 includes an upper pulley 221, a lower pulley 222, an endless belt 223, and a tension pulley 224.
  • the upper pulley 221 is attached to the compressor 200A.
  • the lower pulley 222 is attached to the motor 210.
  • the endless belt 223 is wound around the upper pulley 221, the lower pulley 222, and the tension pulley 224.
  • the tension pulley 224 gives an appropriate tension to the endless belt 223.
  • Rotating cover 380 includes a plurality of ribs 381 extending in the horizontal direction.
  • the plurality of ribs 381 are aligned in the vertical direction.
  • Outside air can flow into the housing 300 ⁇ / b> A from a gap formed between adjacent ribs 381.
  • the outside air that has flowed into the housing 300 ⁇ / b> A is used as a cooling airflow by the cooling mechanism 120.
  • the cooling mechanism 120 includes an internal fan device 121 and a cold flow adjustment box 122.
  • the first wall portion 390 includes a flat plate 391 and a bulging wall 392.
  • the flat plate 391 partially forms a space surrounded by the third column 353 (see FIG. 8), the fourth column 354 (see FIG. 8), the second beam member 357 (see FIG. 8), and the top plate 370. close.
  • the bulging wall 392 is attached to the flat plate 391 using an appropriate fixing tool such as a commercially available lever lock or screw.
  • the bulging wall 392 bulges outward from the flat plate 391.
  • the inner fan device 121 is attached to the bulging wall 392 through an opening region (not shown) formed in the flat plate 391.
  • the bulging wall 392 is removable from the flat plate 391. The operator can remove the bulging wall 392 and take out the inner fan device 121 from the housing 300A.
  • the internal fan device 121 may operate under the control of the control unit 620.
  • the air in the housing 300 ⁇ / b> A is sucked by the inner fan device 121.
  • air outside the casing 300A flows into the casing 300A through the rotation cover 380.
  • the cold flow adjustment box 122 is disposed between the internal fan device 121 and the compressor 200A.
  • the cold flow adjustment box 122 adjusts the flow area shape of the cooling air blown from the inner fan device 121.
  • FIG. 11A is a schematic perspective view of the cold flow adjustment box 122.
  • FIG. 11B is a schematic rear view of the cold flow adjustment box 122.
  • the cold flow adjustment box 122 will be described with reference to FIGS. 10 to 11B.
  • the cold flow adjustment box 122 includes a front plate 131, a rear plate 132, and an outer peripheral plate 133.
  • the front plate 131 faces the inner fan device 121 (see FIG. 10).
  • the front plate 131 includes an outer edge 134 and an inner edge 135.
  • the outer edge 134 forms a substantially rectangular outer contour of the front plate 131.
  • the inner edge 135 forms a substantially circular opening region.
  • the diameter of the opening area formed by the inner edge 135 is substantially equal to the rotational diameter of the fan blades of the inner fan device 121. Alternatively, the diameter of the opening region is set slightly larger than the rotation diameter of the fan blades. Therefore, the cooling air generated by the inner fan device 121 can efficiently flow into the cold flow adjustment box 122.
  • the rear plate 132 is erected between the front plate 131 and the compressor 200A (see FIG. 10).
  • the rear plate 132 includes an outer edge 136 and an inner edge 137. Similar to the outer edge 134 of the front plate 131, the outer edge 136 of the rear plate 132 forms a substantially rectangular outline of the rear plate 132.
  • the compressor 200A has a substantially rectangular cross-sectional profile on a vertical virtual plane including the rotation axis of the compressor 200A.
  • the inner edge 137 of the rear plate 132 forms a substantially rectangular opening region formed so as to match the shape and size of the cross section of the compressor 200A.
  • the outer peripheral plate 133 is connected to the outer edges 134 and 136 of the front plate 131 and the rear plate 132.
  • the cooling air flowing into the substantially circular opening region formed by the inner edge 135 of the front plate 131 flows out of the substantially rectangular opening region formed by the inner edge 137 of the rear plate 132 and efficiently hits the compressor 200A. It will be. Therefore, the compressor 200A is efficiently cooled.
  • the cooling air generated by the internal fan device 121 flows toward the compressor 200 ⁇ / b> A through the cold flow adjustment box 122.
  • the cooling air collides with the compressor 200A. As a result, the cooling air can take heat away from the compressor 200A.
  • the compressor 200 ⁇ / b> A is disposed between the cold flow adjustment box 122 and the second wall portion 320 erected on the opposite side to the first wall portion 390. Therefore, the cooling air generated by the inner fan device 121 takes heat from the compressor 200 ⁇ / b> A and then flows toward the second wall 320.
  • the second wall portion 320 includes an inner duct portion 327 disposed in the housing 300A.
  • the inner duct portion 327 forms an opening 328 in cooperation with the outer duct portion 321 disposed outside the housing 300A.
  • the cooling airflow generated by the inner fan device 121 is released from the housing 300 ⁇ / b> A through the opening 328.
  • the exhaust duct is exemplified by the outer duct portion 321 and the inner duct portion 327.
  • the cooling pipe 410 extends in a meandering manner across the first cooling section and the second cooling section.
  • the outer duct part 321 protrudes toward the first cooling section.
  • the cooling pipe 410 faces the opening 328.
  • the cooling pipe 410 faces the outer fan device 430.
  • the cooling pipe 410 is exposed to the cooling air generated by the inner fan device 121 in the first cooling section. Therefore, the compressed air flowing along the cooling pipe 410 in the first cooling section is cooled by the cooling air generated by the inner fan device 121. Since the cooling pipe 410 faces the external fan device 430 in the second cooling section, the cooling pipe 410 is exposed to the cooling air generated by the external fan apparatus 430 in the second cooling section. Therefore, the compressed air flowing along the cooling pipe 410 in the second cooling section is cooled by the cooling air generated by the outer fan device 430.
  • the inner fan device 121 described with reference to FIG. 10 may be an axial fan device that rotates fan blades around a rotation center axis extending along a virtual horizontal plane formed below the opening 328. Good. In this case, most of the cooling air generated by the inner fan device 121 collides with the second wall portion 320.
  • the inner duct portion 327 includes a lining material 329 lining the mounting plate 326 of the second wall portion 320 facing the inner fan device 121.
  • the lining material 329 may have a higher sound absorption performance than the mounting plate 326.
  • the lining material 329 is located below the opening 328.
  • the lining material 329 extends substantially horizontally along the lower edge of the opening 328. Since most of the cooling air that has collided with the second wall portion 320 flows along the lining material 329, the volume of noise emitted from the opening 328 is reduced.
  • the sound absorption region is exemplified by a region where the lining material 329 is disposed.
  • the designer may arrange a plurality of compressors in the housing. If the air compressor includes a plurality of compressors, the air compressor can generate a large amount of compressed air in a short time.
  • an air compression apparatus including a plurality of compressors is described.
  • FIG. 12 is a schematic plan view showing the internal structure of the air compressor 100A. With reference to FIG. 12, the air compressor 100A will be further described.
  • the air compression apparatus 100A includes a compression mechanism 140 and a cooling mechanism 150.
  • the compression mechanism 140 generates compressed air.
  • the cooling mechanism 150 cools the compression mechanism 140.
  • the compression mechanism 140 is in a mirror image relationship with the compression mechanism 110 described in the context of the sixth embodiment. Therefore, the description regarding the compression mechanism 110 of 6th Embodiment is used for the compression mechanism 140.
  • FIG. The cooling mechanism 150 is structurally identical to the cooling mechanism 120 described in relation to the sixth embodiment. Therefore, the description regarding the cooling mechanism 120 of the sixth embodiment is incorporated in the cooling mechanism 150.
  • the compression mechanism 140 includes a compressor 230. Similar to the compressor 200 ⁇ / b> A of the compression mechanism 110, the compressor 230 generates compressed air.
  • the compressor 200 ⁇ / b> A includes a port wall 201.
  • the compressor 230 includes a port wall 231.
  • the port wall 201 of the compressor 200 ⁇ / b> A faces the port wall 231 of the compressor 230.
  • Each of the port walls 201 and 231 is formed with an intake port (not shown) through which outside air outside the housing 300A flows and a delivery port (not shown) through which compressed air is sent out.
  • the air compressor 100A further includes an intake guide structure 800 disposed between the port walls 201 and 231. Outside air outside the housing 300 ⁇ / b> A flows into the compressors 200 ⁇ / b> A and 230 through the intake guide structure 800. Each of the compressors 200A and 230 compresses the outside air flowing in through the intake guide structure 800, and generates compressed air. The compressed air is sent out of the housing 300A through the guide tube 700 described in relation to the second embodiment.
  • FIG. 13 is a schematic cross-sectional view of the intake guide structure 800.
  • the intake guide structure 800 will be described with reference to FIGS. 9, 12, and 13.
  • the first wall portion 390 includes a filter cover 393.
  • the filter cover 393 is arranged in a mountain-shaped concave region formed by the bulging wall 392. Similar to the bulging wall 392, the filter cover 393 is attached to the flat plate 391. An operator can remove the filter cover 393 from the flat plate 391.
  • the intake guide structure 800 includes an intake duct 810, a filter device 820, and a trim seal 831.
  • the filter device 820 is disposed between the filter cover 393 and the intake duct 810.
  • the trim seal 831 is a rubber ring member that hermetically connects the filter device 820 to the intake duct 810.
  • the intake duct 810 is a hollow box member having a substantially rectangular parallelepiped shape.
  • the compressors 200 ⁇ / b> A and 230 are operated, a negative pressure environment is generated in the intake duct 810.
  • outside air outside the housing 300A flows into the housing 300A through the filter cover 393.
  • the outside air passes through the filter device 820.
  • the filter device 820 removes dust floating in the outside air that has flowed in. The air cleaned by the filter device 820 flows into the intake duct 810.
  • FIG. 14 is a schematic enlarged cross-sectional view of the intake guide structure 800 around the intake duct 810.
  • the intake guide structure 800 will be further described with reference to FIG.
  • the intake guide structure 800 further includes two supply pipes 811 and 812 and two trim seals 832 and 833.
  • the trim seal 832 is used for connection between the supply pipe 811 and the intake duct 810.
  • the trim seal 833 is used for connection between the supply pipe 812 and the intake duct 810.
  • the supply pipe 811 is connected to the port wall 201 of the compressor 200A from a trim seal 832 attached to the intake duct 810.
  • the outside air purified by the filter device 820 flows into the compressor 200A through the intake duct 810 and the supply pipe 811.
  • the supply pipe 812 is connected to the port wall 231 of the compressor 230 from a trim seal 833 attached to the intake duct 810.
  • the outside air purified by the filter device 820 flows into the compressor 230 through the intake duct 810 and the supply pipe 812.
  • FIG. 15 is a schematic enlarged perspective view of a part of the guide tube 700.
  • the guide tube 700 will be described with reference to FIGS. 2 to 4, 12, and 15.
  • the guide tube 700 includes two discharge tubes 710 and 720, a junction 730, and a junction tube 740.
  • the discharge pipe 710 guides the compressed air generated by the compressor 200 ⁇ / b> A to the joining portion 730 disposed near the first wall portion 390.
  • the discharge pipe 720 guides the compressed air generated by the compressor 230 to the junction 730.
  • the junction pipe 740 extends from the junction section 730 toward the second wall section 320 opposite to the first wall section 390, and is connected to the cooling pipe 410 outside the housing 300A.
  • the guide tube 700 gives a long flow path to the compressed air in the housing 300A.
  • the cooling air generated by the cooling mechanisms 120 and 150 flows in the housing 300A until it is discharged from the opening 328 (see FIG. 4). Therefore, the compressed air can be cooled by the cooling air generated by the cooling mechanisms 120 and 150 for a long time in the housing 300A.
  • the junction 730 includes a manifold 731 and two check valves 732 and 733.
  • the check valves 732 and 733 are attached to the manifold 731.
  • the discharge pipe 710 is connected to the check valve 732.
  • the compressed air flowing along the discharge pipe 710 flows into the manifold 731 through the check valve 732.
  • the check valve 732 blocks the flow of compressed air returning from the manifold 731 to the discharge pipe 710.
  • the discharge pipe 720 is connected to the check valve 733.
  • the compressed air flowing along the discharge pipe 720 flows into the manifold 731 through the check valve 733.
  • the check valve 733 blocks the flow of compressed air returning from the manifold 731 to the discharge pipe 720.
  • a merged inner pipe (not shown) for joining two flows of compressed air is formed inside the manifold 731.
  • the compressed air joined by the joining inner pipe is discharged from the manifold 731 through the joining pipe 740.
  • the merge pipe 740 is inserted into the opening 328 through the inner duct portion 327. As shown in FIG. 3, the merge pipe 740 is bent in the outer duct portion 321 and extends toward the support wall 324 of the outer duct portion 321. The merge pipe 740 passes through the support wall 324 and is connected to the upstream connection end 420 of the cooling unit 400A described with reference to FIG.
  • Designers can design various air compression devices according to the design principles described in relation to the various embodiments described above. Some of the various features described in connection with one of the various embodiments described above may be applied to the air compression apparatus described in connection with another embodiment.
  • the exemplary air compression device described in connection with the various embodiments described above primarily includes the following features.
  • An air compressor cools the compressed air outside a compressor that generates compressed air, a housing that forms a housing space in which the compressor is housed, and the housing.
  • the cooling unit cools the compressed air outside the casing, the cooling unit is hardly affected by heat generated from the compressor accommodated in the casing. Therefore, the compressed air is cooled more efficiently than when the cooling unit is installed in the housing.
  • the protective cover at least partially covers the cooling unit, the cooling unit disposed outside the housing is appropriately protected by the protective cover.
  • the protective cover prevents stepping stones, etc. scattered during vehicle travel from hitting the cooling unit and causing damage.
  • the protective cover can be installed so as to cover the entire cooling unit. Further, when the cooling airflow is passed through the cooling unit, the cooling air after passing through the cooling unit is released toward a predetermined external space so as to avoid collision with other peripheral devices.
  • the protective cover may be installed at least between the cooling unit and a predetermined space from which the cooling air is discharged, thereby preventing stepping stones or the like from hitting the cooling unit through the predetermined space.
  • the air compression device may further include an external fan device that generates a cooling airflow toward the cooling unit from air outside the housing.
  • the cooling airflow is generated from the air outside the housing by the external fan device and travels to the cooling unit. Therefore, the compressed air passing through the cooling unit generates the cooling airflow from the air inside the housing. Compared to, it is cooled efficiently.
  • the air compression device includes an external fan device disposed between the casing and the cooling unit, a control unit that controls the compressor, and dehumidification that dehumidifies the compressed air that has passed through the cooling unit. May be further provided.
  • the control unit and the dehumidifying unit may be disposed below the cooling unit.
  • the protective cover may include a baffle plate lying below the cooling unit. The baffle plate prevents airflow from the cooling unit toward the control unit and the dehumidifying unit.
  • the baffle plate hinders the air flow from the cooling unit to the control unit and the dehumidifying unit, so that the air flow warmed by the compressed air flowing through the cooling unit is less likely to affect the control unit and the dehumidifying unit.
  • the protective cover may include a ventilation plate erected from the baffle plate.
  • the cooling unit may be disposed between the ventilation plate and the outer fan device. Ventilation holes are formed in the ventilation plate.
  • the cooling unit is disposed between the ventilation plate and the external fan device, the cooling unit is appropriately protected from a stepping stone or the like during vehicle travel. Since the ventilation holes are formed in the ventilation plate, the cooling airflow generated by the external fan device can be discharged to the outside through the ventilation holes of the ventilation plate. Therefore, the compressed air passing through the cooling unit is efficiently cooled.
  • the baffle plate may include a facing edge facing the housing.
  • the opposing edge forms an opening region in cooperation with the housing below the outer fan device.
  • the outer fan device can suck air from the opening area formed below the outer fan device, so that the outer fan device receives almost no heat from the compressed air flowing through the cooling unit. Can be used to create a cooling airflow.
  • the air compressor may further include an internal fan device that generates a cooling airflow toward the compressor.
  • the housing may include an exhaust duct disposed above the outer fan device.
  • the cooling unit may include a cooling pipe having a first cooling section facing the exhaust duct and a second cooling section facing the outer fan device. The cooling airflow from the inner fan device may be discharged from the housing to the outside through the exhaust duct.
  • the compressor is appropriately cooled by the cooling airflow generated by the internal fan device. Thereafter, the cooling airflow is discharged through an exhaust duct disposed above the outer fan device, and the compressed air flowing through the first cooling section of the cooling unit can be appropriately cooled. The compressed air then flows through the second cooling section of the cooling unit and is cooled by the cooling airflow generated by the outer fan device, so that the air compressing device can efficiently cool the compressed air.
  • the housing may include a first wall portion to which the inner fan device is attached and a second wall portion on the opposite side to the first wall portion.
  • the exhaust duct may include an inner duct portion disposed in the accommodation space, and an outer duct portion projecting from an opening formed in the second wall portion toward the first cooling section.
  • the inner duct portion may include a sound absorption region located below the opening and facing the inner fan device.
  • the air compressor may further include a guide tube for guiding the compressed air from the compressor to the cooling unit.
  • the guide tube may pass through the exhaust duct and be connected to the cooling unit.
  • the air compression device can efficiently cool the compressed air.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
PCT/JP2016/065533 2015-05-29 2016-05-26 空気圧縮装置 WO2016194750A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19187990.7A EP3581799B1 (en) 2015-05-29 2016-05-26 Air compression device
JP2017521867A JP6770954B2 (ja) 2015-05-29 2016-05-26 空気圧縮装置
SG11201709423WA SG11201709423WA (en) 2015-05-29 2016-05-26 Air compression device
EP16803185.4A EP3306087B1 (en) 2015-05-29 2016-05-26 Air compression device
CN201680031507.0A CN107614873B (zh) 2015-05-29 2016-05-26 空气压缩装置

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JP2015110705 2015-05-29
JP2015-110705 2015-05-29

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JP (1) JP6770954B2 (zh)
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WO (1) WO2016194750A1 (zh)

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US20040191085A1 (en) * 2003-03-26 2004-09-30 Ingersoll-Rand Company Fluid cooling assembly and method

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JP3150077U (ja) 2009-01-29 2009-04-30 三菱重工業株式会社 鉄道車両用空気圧縮装置
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JP6004961B2 (ja) * 2013-02-06 2016-10-12 三菱重工業株式会社 圧縮空気供給装置
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JPS61134585U (zh) * 1985-02-08 1986-08-22
JPH10176668A (ja) * 1996-12-19 1998-06-30 Kobe Steel Ltd 空冷パッケージ形注油式圧縮機
US20040191085A1 (en) * 2003-03-26 2004-09-30 Ingersoll-Rand Company Fluid cooling assembly and method

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CN107614873B (zh) 2019-11-12
EP3306087B1 (en) 2020-01-29
JP6770954B2 (ja) 2020-10-21
JPWO2016194750A1 (ja) 2018-03-15
EP3306087A4 (en) 2018-12-19
EP3306087A1 (en) 2018-04-11
SG11201709423WA (en) 2017-12-28
EP3581799A1 (en) 2019-12-18
TW201704640A (zh) 2017-02-01
EP3581799B1 (en) 2020-10-07
TWI621775B (zh) 2018-04-21
CN107614873A (zh) 2018-01-19

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