WO2018074107A1 - ドライヤ装置およびエアサスペンションシステム - Google Patents
ドライヤ装置およびエアサスペンションシステム Download PDFInfo
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- WO2018074107A1 WO2018074107A1 PCT/JP2017/032956 JP2017032956W WO2018074107A1 WO 2018074107 A1 WO2018074107 A1 WO 2018074107A1 JP 2017032956 W JP2017032956 W JP 2017032956W WO 2018074107 A1 WO2018074107 A1 WO 2018074107A1
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- compressed air
- desiccant
- dryer
- air
- outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/414—Further details for adsorption processes and devices using different types of adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/414—Further details for adsorption processes and devices using different types of adsorbents
- B01D2259/4141—Further details for adsorption processes and devices using different types of adsorbents within a single bed
- B01D2259/4143—Further details for adsorption processes and devices using different types of adsorbents within a single bed arranged as a mixture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/414—Further details for adsorption processes and devices using different types of adsorbents
- B01D2259/4141—Further details for adsorption processes and devices using different types of adsorbents within a single bed
- B01D2259/4145—Further details for adsorption processes and devices using different types of adsorbents within a single bed arranged in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/414—Further details for adsorption processes and devices using different types of adsorbents
- B01D2259/4141—Further details for adsorption processes and devices using different types of adsorbents within a single bed
- B01D2259/4145—Further details for adsorption processes and devices using different types of adsorbents within a single bed arranged in series
- B01D2259/4148—Multiple layers positioned apart from each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/202—Height or leveling valve for air-springs
- B60G2500/2021—Arrangement of valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- 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
- F04B39/16—Filtration; Moisture separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
Definitions
- the present invention relates to a dryer device and an air suspension system mounted on a vehicle such as a four-wheeled vehicle.
- a conventional air suspension system of this type includes a compressor that compresses air and a dryer device that removes moisture contained in the compressed air (see, for example, Patent Documents 1 and 2).
- the dryer apparatus has a characteristic that the temperature of the compressed air is high in the portion where the compressed air from the compressor flows, and the temperature of the compressed air is low in the portion where the compressed air flows out of the dryer apparatus.
- the dryer apparatus according to the prior art has one type of desiccant in the dryer apparatus in order to remove moisture contained in the compressed air.
- the temperature range of the compressed air passing through the dryer apparatus is wide, and there is a problem that it is difficult to effectively remove moisture with one kind of desiccant.
- An object of the present invention is to provide a dryer apparatus and an air suspension system that can effectively remove moisture in compressed air even in a wide temperature range.
- a dryer apparatus is provided with a plurality of types of desiccants that dry compressed air.
- An air suspension system includes an air suspension that is interposed between a vehicle body and an axle and adjusts the vehicle height according to supply and discharge of air, a compressor that compresses air, and the compressor And the dryer device provided on the discharge side.
- moisture in compressed air can be effectively removed even when the temperature range is wide.
- FIG. 1 is a circuit diagram showing an overall configuration of an air suspension system according to a first embodiment. It is sectional drawing which expands and shows the dryer apparatus in FIG.
- FIG. 4 is a characteristic diagram showing temperature characteristics of first to third desiccants. It is sectional drawing which shows the flow of the compressed air in a dryer apparatus when supplying compressed air toward an air suspension from a compressor. It is sectional drawing which shows the flow of the compressed air in a dryer apparatus when discharging compressed air from an air suspension toward a compressor. It is sectional drawing which shows the dryer apparatus of 2nd Embodiment. It is a block diagram which shows the inside of the dryer apparatus by a 1st modification. It is a block diagram which shows the inside of the dryer apparatus by the 2nd modification. It is a block diagram which shows the inside of the dryer apparatus by the 3rd modification. It is a circuit diagram which shows the whole structure of the closed type air suspension system by a 4th modification.
- an in-vehicle air suspension system 1 includes an air suspension 2, a compressor 9, a dryer device 12, and the like.
- the air suspension system 1 is configured as an open type air suspension system that does not have a tank for storing compressed air.
- the air suspension 2 is located on the front wheel side and the rear wheel side of the vehicle, and is provided between the vehicle body side and the axle side (both not shown) of the vehicle. Specifically, four air suspensions 2 are provided so as to correspond to the front left front wheel (FL), the right front wheel (FR), the rear left rear wheel (RL), and the right rear wheel (RR), respectively. It has been. When compressed air is supplied or discharged, the air suspension 2 adjusts the vehicle height by expanding or contracting upward or downward depending on the supply / discharge amount (compressed air amount) of the air at this time. .
- the air suspension 2 is connected to a dryer device 12 to be described later via a supply / exhaust conduit 3 and each branch conduit 4.
- the supply / exhaust pipe line 3 has one end side located upstream thereof connected to the discharge side of the compressor 9 and the other end side located downstream thereof connected to each branch pipe line 4.
- each branch pipe 4 is connected to the supply / exhaust pipe 3 at one end located on the upstream side and connected to the air suspension 2 at the other end located on the downstream side.
- the supply / discharge line 3 and the branch lines 4 supply and discharge compressed air to / from each air suspension 2.
- the supply / exhaust valve 5 is located between each air suspension 2 and the dryer device 12 and is provided in the middle of each branch pipe 4.
- the air supply / exhaust valve 5 is composed of an ON / OFF type electromagnetic valve, and each branch pipe 4 is opened by opening each branch pipe 4 to allow compressed air to be supplied / discharged to / from each air suspension 2. Is closed and the position is selectively switched to the closed position (b) where the supply and discharge of the compressed air to and from each air suspension 2 is shut off.
- the suction pipe 6 is connected to the suction side of the compressor 9.
- the suction pipe 6 is always in communication with the atmosphere, and allows the air sucked from the intake filter 6 ⁇ / b> A to flow into the compressor 9.
- the exhaust pipe 7 is located between the compressor 9 and the dryer device 12 and is connected to the supply / discharge pipe 3. When the exhaust valve 8 is opened, the exhaust pipe 7 discharges (releases) compressed air in the exhaust pipe 7 into the atmosphere via the exhaust port 7A.
- the exhaust valve 8 is provided in the middle of the exhaust pipe 7.
- the exhaust valve 8 is a valve that allows the exhaust pipe 7 connected to the supply / exhaust pipe 3 to communicate with or cut off from the atmosphere.
- the exhaust valve 8 is constituted by an ON / OFF type electromagnetic valve, and an open position (c) for allowing the compressed air to be discharged from the exhaust port 7A by opening the exhaust conduit 7 and closing the exhaust conduit 7 to the exhaust port.
- the position is selectively switched to the closed position (d) for blocking the discharge of compressed air from 7A.
- the compressor 9 is located between the supply / exhaust pipe line 3 and the suction pipe line 6 and is constituted by, for example, a reciprocating compressor or a scroll compressor.
- the compressor 9 is driven by an electric motor 10 as a drive source such as a linear motor, a DC motor, or an AC motor, for example, and compresses the air sucked from the suction pipe 6 side to generate compressed air.
- the compressor 9 discharges and supplies the compressed air toward the dryer device 12.
- the compressed air from the compressor 9 may be discharged at a high temperature of about 100 ° C., for example.
- the orifice 11 is located between the dryer device 12 and each branch pipe 4 and is provided in the middle of the supply / discharge pipe 3.
- the orifice 11 constitutes a throttle that restricts the flow rate of the compressed air flowing through the supply / exhaust conduit 3, whereby the compressed air flows through the supply / exhaust conduit 3 at a low speed, and moisture adsorption ( Drying) performance can be improved.
- the dryer device 12 is located between the discharge side of the compressor 9 and the orifice 11 and is provided in the middle of the supply / discharge line 3.
- the dryer apparatus 12 includes a dryer case 12A that constitutes a casing thereof, and in the dryer case 12A, first filters 16A and 16B, a first drying chamber 17, a first desiccant 18, and the like described later, A first spring 19, second filters 24A and 24B, a second drying chamber 25, a second desiccant 26, a second spring 27, and the like are provided.
- the dryer case 12 ⁇ / b> A includes an inner cylinder 13, a first inlet 14, a first outlet 15, an outer cylinder 20, a second inlet 21, a lid 22 and a second outlet 23. It is configured.
- the inner cylinder 13 is formed in a cylindrical shape as a hollow container made of a metal material such as aluminum.
- the inner cylinder 13 constitutes a first drying cylinder filled with a first desiccant 18 that dries compressed air.
- a first inlet 14 through which compressed air flows from the compressor 9 is formed at one end side of the inner cylinder 13, and the first inlet 14 is a first drying chamber in the supply / discharge line 3 and the inner cylinder 13. 17 is in communication.
- a first outlet 15 through which compressed air flows out from the inner cylinder 13 toward the outer cylinder 20 is formed on the other end side of the inner cylinder 13.
- a first one-side filter 16A is provided on one axial side in the inner cylinder 13, and a first other filter 16B is provided on the other axial side in the inner cylinder 13. These filters 16A and 16B prevent part of the first desiccant 18 from flowing out.
- a first drying chamber is provided between the first one-side filter 16A and the first other-side filter 16B in the inner cylinder 13 by the first one-side filter 16A and the first other-side filter 16B. 17 is defined, and the first drying chamber 17 is filled with a first drying agent 18. Further, between the first other-side filter 16B and the inner peripheral surface (bottom portion 20B) on the other end side of the outer cylinder 20, the first other-side filter 16B is always directed toward the first one-side filter 16A side.
- a first spring 19 for biasing is provided.
- the first desiccant 18 is filled in the first drying chamber 17 between the first first-side filter 16A and the first other-side filter 16B.
- the first desiccant 18 adsorbs moisture in the compressed air.
- the first desiccant 18 has a high moisture adsorption performance at a high temperature as indicated by a characteristic line A shown by a solid line in FIG. 3, and is composed of, for example, molecular sieve (a kind of zeolite).
- the outer cylinder 20 forms an outer shell of the dryer device 12 and is provided so as to be coaxial with the inner cylinder 13 and cover the entire outer circumference side of the inner cylinder 13.
- the outer cylinder 20 is formed as a hollow container made of a metal material such as aluminum, for example, and has a bottomed cylindrical shape with one end side opened as an open end 20A and the other end side closed as a bottom 20B.
- the dryer case 12 ⁇ / b> A of the dryer device 12 is configured by a double cylinder structure by the inner cylinder 13 and the outer cylinder 20.
- a second inlet 21 for communicating between the inner cylinder 13 and the outer cylinder 20 and into which compressed air flowing out from the first outlet 15 flows.
- a lid 22 formed as an annular plate is provided on the opening end 20 ⁇ / b> A side of the outer cylinder 20, and the opening end 20 ⁇ / b> A of the outer cylinder 20 is closed by the lid 22.
- the lid body 22 is formed with a second outlet 23 through which compressed air flows out from the outer cylinder 20 toward the orifice 11 (supply / discharge pipe 3).
- the second outlet 23 is connected to the orifice 11 ( The supply / discharge line 3) and the second drying chamber 25 in the outer cylinder 20 are communicated with each other.
- the outer cylinder 20 constitutes a second drying cylinder filled with a second desiccant 26 that dries compressed air.
- the outer cylinder 20 and the lid body 22 constitute a part of the dryer case 12A.
- a second one-side filter 24 ⁇ / b> A is provided on one side of the outer cylinder 20 so as to be located on the radially outer side of the inner cylinder 13, and on the other side of the outer cylinder 20 on the radially outer side of the inner cylinder 13.
- a second other-side filter 24B is provided. These filters 24A and 24B prevent part of the second desiccant 26 from flowing out.
- the second other-side filter 24B is located between the second inlet 21 and the second outlet 23 and serves as a partition member that partitions the first desiccant 18 and the second desiccant 26. It is composed.
- the second drying chamber 25 is radially outside the inner cylinder 13 by these filters 24A and 24B.
- the second drying chamber 25 is filled with a second desiccant 26 (of a different type from the first desiccant 18).
- a second spring 27 is provided between the second one-side filter 24A and the lid 22 to constantly urge the second one-side filter 24A toward the second other-side filter 24B. ing.
- the second desiccant 26 is filled in the second drying chamber 25.
- the second desiccant 26 adsorbs moisture in the compressed air.
- the second desiccant 26 has a high moisture adsorption performance at a low temperature as indicated by a characteristic line B shown by a broken line in FIG. 3, and is made of, for example, silica gel.
- the first desiccant 18 has higher moisture adsorption performance when the compressed air is at a higher temperature than the second desiccant 26.
- the 1st desiccant 18 and the 2nd desiccant 26 are filled in series with respect to the flow direction of compressed air. That is, the first drying chamber 17 and the second drying chamber 25 are arranged in series in the dryer case 12A.
- the first desiccant 18 of the characteristic line A has a moisture adsorption amount higher than that of the second desiccant 26 of the characteristic line B. It is high.
- the second desiccant 26 has a higher moisture adsorption amount than the first desiccant 18.
- the dryer apparatus 12 adsorb
- the 3rd desiccant of the characteristic line C shown with a dashed-dotted line in FIG. 3 is comprised, for example with activated alumina.
- the third desiccant has intermediate characteristics between the first desiccant 18 and the second desiccant 26.
- the volume of the outer cylinder 20 (specifically, the volume of the second drying chamber 25) is compared with the volume of the inner cylinder 13 (specifically, the volume of the first drying chamber 17). It is greatly formed.
- the filling amount of the second desiccant 26 in the second drying chamber 25 is larger than that of the first desiccant 18 in the first drying chamber 17.
- the area of the second outlet 23 is smaller than the area of the first outlet 15. Accordingly, the compressed air passing through the dryer apparatus 12 is more easily adsorbed by the moisture in the compressed air in the second desiccant 26 than in the first desiccant 18.
- the air suspension system 1 according to the first embodiment has the above-described configuration, and the operation thereof will be described next.
- the air supply / exhaust valve 5 is switched from the closed position (b) to the open position (a), and the exhaust valve 8 is held at the closed position (d).
- the compressor 9 sucks outside air into the compressor 9 through the intake filter 6A and the suction pipe 6, pressurizes (compresses) the air, and directs the compressed air to the dryer device 12. To discharge.
- Compressed air discharged from the compressor 9 is, in the inner cylinder 13 of the dryer device 12, a first inlet 14, a first one-side filter 16A, a first drying chamber 17, a first other-side filter 16B, It flows through the first outlet 15 in the forward direction (see FIG. 4).
- the compressed air passes through the second inlet 21, the second other filter 24 ⁇ / b> B, the second drying chamber 25, the second first filter 24 ⁇ / b> A, and the second outlet 23 in the outer cylinder 20. Then, it flows in the forward direction toward the orifice 11.
- compressed air in a high temperature state (for example, about 100 ° C.) by the compressor 9 flows from the first inlet 14 into the first drying chamber 17 adjacent to the discharge side of the compressor 9. And since the 1st desiccant 18 with the high water
- a low temperature state for example, about 20 ° C.
- the supply / exhaust valve 5 is switched from the open position (a) to the closed position (b), and the branch pipe 4 is closed.
- the flow of compressed air to each air suspension 2 can be blocked, and each air suspension 2 can be kept in the extended state and the vehicle height can be kept high.
- the compressed air discharged from each air suspension 2 is supplied to the second outlet 23, the second one-side filter 24A, the second drying chamber 25, and the second other-side filter in the outer cylinder 20 of the dryer device 12.
- 24B flows through the second inlet 21 in the reverse direction (see FIG. 5).
- the compressed air reverses the first outlet 15, the first other filter 16 ⁇ / b> B, the first drying chamber 17, the first one-side filter 16 ⁇ / b> A, and the first inlet 14. Circulate in the direction.
- the compressed air that has passed through the dryer device 12 is directly discharged to the outside through the exhaust pipe 7, the exhaust valve 8, and the exhaust port 7A.
- the compressed air is discharged from each air suspension 2, and each air suspension 2 shifts to a contracted state, whereby the vehicle height can be lowered.
- the air suspension system 1 includes the compressor 9 for compressing air and the dryer device 12 provided on the discharge side of the compressor 9. Moreover, the dryer apparatus 12 has the inner cylinder 13 filled with the 1st desiccant 18 and the outer cylinder 20 with which the 2nd desiccant 26 was filled which dries compressed air. Thereby, compared with the dryer apparatus which uses only one kind of desiccant, the water
- the dryer apparatus 12 includes first and second desiccants 18 and 26 having different temperature characteristics. Thereby, since the dryer apparatus 12 can use the desiccant according to the temperature state of compressed air, it can remove the water
- the air suspension system 1 includes a first inlet 14 into which compressed air flows, an inner cylinder 13 filled with a first desiccant 18 that dries the compressed air that has flowed in from the first inlet 14, A first outlet 15 from which compressed air flows out from the inner cylinder 13, a second inlet 21 into which compressed air that flows out from the first outlet 15 flows in, and compressed air that flows in from the second inlet 21
- the outer cylinder 20 filled with the second desiccant 26 for drying the air and the second outlet 23 from which the compressed air flows out of the outer cylinder 20, and the first desiccant 18 is the second desiccant 18. Compared with the desiccant 26, the moisture adsorption performance when the compressed air is high is set to be high.
- the dryer apparatus 12 since the dryer apparatus 12 has the 1st, 2nd desiccant 18 and 26 from which temperature characteristics each differ in the inner cylinder 13 and the outer cylinder 20, respectively, the location match
- the first and second desiccants 18 and 26 can be disposed on the front.
- the first desiccant 18 having a high moisture adsorption performance at a high temperature is disposed at a location where high-temperature compressed air circulates
- the second moisture adsorption performance at a low temperature is high at a location where low-temperature compressed air circulates.
- the desiccant 26 can be arranged. Therefore, the dryer apparatus 12 can effectively remove moisture in the compressed air in accordance with the temperature state of the compressed air.
- the dryer device 12 is filled with the first desiccant 18 and the second desiccant 26 in series with respect to the flow direction of the compressed air.
- the 1st desiccant 18 can be arrange
- the 2nd desiccant 26 can be arrange
- the outer cylinder 20 of the dryer device 12 forms a part of the dryer case and is provided so as to cover the entire outer circumference side of the inner cylinder 13.
- the dryer apparatus 12 can be made into a double cylinder structure.
- the second drying chamber 25 filled with the second desiccant 26 can be disposed between the outer peripheral surface of the inner cylinder 13 and the inner peripheral surface of the outer cylinder 20.
- the dryer device 12 has a second other-side filter 24B that partitions the first desiccant 18 and the second desiccant 26 between the second inlet 21 and the second outlet 23. Is provided. Thereby, it can suppress that the 1st desiccant 18 and the 2nd desiccant 26 are mixed.
- the dryer device 12 has a configuration in which the volume of the outer cylinder 20 is larger than the volume of the inner cylinder 13.
- the volume of the 2nd drying chamber 25 with which the 2nd desiccant 26 is filled can be enlarged, compared with the 1st desiccant 18, the filling amount of the 2nd desiccant 26 is increased. be able to.
- more moisture in the compressed air can be adsorbed to the second desiccant 26 than to the first desiccant 18.
- the dryer device 12 is configured such that the second outlet 23 is smaller than the first outlet 15. As a result, the compressed air can be retained longer in the second drying chamber 25 than in the first drying chamber 17. As a result, more moisture in the compressed air can be adsorbed to the second desiccant 26 than to the first desiccant 18.
- FIG. 6 shows a second embodiment of the present invention.
- the dryer apparatus has a single cylinder structure and is provided with a mixture of plural kinds of desiccants.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- the dryer device 31 includes a dryer case 32, a lid 33, filters 34A and 34B, a drying chamber 35, first and second desiccants 36 and 37, a spring 38, an exhaust pipe 39, an outlet 40, and the like. It is configured to include.
- the dryer device 31 adsorbs moisture in the compressed air with the first and second desiccants 36 and 37 when the compressed air supplied from the compressor 9 flows in the forward direction toward the orifice 11.
- the dryer device 31 supplies dry compressed air (dry air) toward each air suspension 2.
- the compressed air (exhaust gas) flowing in the reverse direction from each air suspension 2 toward the exhaust pipe 7 is adsorbed by the first and second desiccants 36 and 37 by flowing backward in the dryer device 31.
- the first and second desiccants 36 and 37 are regenerated.
- the dryer case 32 is formed as a hollow container made of a metal material such as aluminum, for example, and has a bottomed cylindrical shape having one end side opened as an open end 32A and the other end side closed as a bottom 32B.
- the opening end 32 ⁇ / b> A of the dryer case 32 is engaged with the lid 33, whereby the lid 33 closes the opening end 32 ⁇ / b> A of the dryer case 32.
- the lid 33 is formed with an inlet 33 ⁇ / b> A through which compressed air flows from the compressor 9, and communicates between the supply / discharge line 3 and the drying chamber 35 in the dryer case 32.
- the one side filter 34A is provided on one side of the dryer case 32, and the other side filter 34B is provided on the other side of the dryer case 32. These filters 34A and 34B prevent part of the first and second desiccants 36 and 37 from flowing out.
- a drying chamber 35 is defined between the one-side filter 34A and the other-side filter 34B in the dryer case 32 by the filters 34A and 34B, and the first and second desiccants 36, 37 is filled.
- a spring 38 is provided between the other side filter 34B and the lid 33 to urge the other side filter 34B toward the one side filter 34A at all times.
- the first and second desiccants 36 and 37 are uniformly mixed and filled in the drying chamber 35. These 1st and 2nd desiccants 36 and 37 adsorb
- the first desiccant 36 is composed of, for example, a molecular sieve having high moisture adsorption performance at a high temperature.
- the second desiccant 37 is made of, for example, silica gel, which has high moisture adsorption performance at low temperatures. That is, the first desiccant 36 has a higher moisture adsorption performance when the compressed air is at a higher temperature than the second desiccant 37.
- the exhaust pipe 39 passes through the filters 34A and 34B between the filters 34A and 34B, and is provided so that one end side and the other end side of the dryer device 12 communicate with each other.
- One end of the exhaust pipe 39 communicates with the space between the one-side filter 34A and the lid 33, and the other end of the exhaust pipe 39 communicates with the exhaust port 7A via the exhaust valve 8.
- the outlet 40 is located on the other end side of the dryer device 12 and is provided at the bottom 32 ⁇ / b> B of the dryer case 32.
- This outflow port 40 is connected to each air suspension 2 via the supply / exhaust pipe 3 and allows the compressed air dried by the dryer device 31 to flow out toward each air suspension 2.
- the dryer device 31 according to the second embodiment has the above-described configuration, and the operation thereof will be described next.
- the air supply / exhaust valve 5 is switched from the closed position (b) to the open position (a), and the exhaust valve 8 is held at the closed position (d).
- the compressor 9 sucks outside air into the compressor 9 through the intake filter 6A and the suction pipe 6, pressurizes (compresses) the air, and directs the compressed air to the dryer device 31. To discharge.
- Compressed air discharged from the compressor 9 flows in the forward direction through the inlet 33A, the one-side filter 34A, the drying chamber 35, the other-side filter 34B, and the outlet 40 of the dryer device 31.
- the drying chamber 35 includes the first desiccant 36 having a high moisture adsorption performance at high temperatures and the second desiccant 37 having a high moisture adsorption performance at low temperatures. Adsorbs moisture in the compressed air regardless of the temperature of the compressed air. Then, the compressed air dried by the dryer device 31 is supplied to each air suspension 2 via the orifice 11, the supply / discharge pipe 3, and the branch pipe 4.
- the supply / exhaust valve 5 is switched from the open position (a) to the closed position (b), and the branch pipe 4 is closed.
- the flow of compressed air to each air suspension 2 can be blocked, and each air suspension 2 can be kept in the extended state and the vehicle height can be kept high.
- Compressed air discharged from each air suspension 2 flows in the reverse direction through the outlet 40 of the dryer device 31, the other side filter 34B, the drying chamber 35, the one side filter 34A, and the exhaust pipe 39.
- moisture is desorbed from the first and second desiccants 36 and 37 in the dryer apparatus 31 by the dry air.
- the first and second desiccants 36 and 37 are regenerated and returned to a state in which moisture can be adsorbed again.
- the compressed air that has passed through the dryer device 31 is directly discharged to the outside through the exhaust valve 8, the exhaust port 7A, and the like. As a result, the compressed air is discharged from each air suspension 2, and each air suspension 2 shifts to a contracted state, whereby the vehicle height can be lowered.
- the dryer device 31 is provided in the drying chamber 35 by mixing the first and second desiccants 36 and 37 as a single cylinder structure using the dryer case 32.
- moisture content in compressed air can be removed effectively.
- the first and second desiccants 36 and 37 are uniformly mixed and filled in the drying chamber 35.
- the present invention is not limited to this.
- the dryer device 51 includes a first drying cylinder 52 filled with a first desiccant 53 and a second drying cylinder 54 filled with a second desiccant 55 in a dryer case 51A.
- the 1st desiccant 53 and the 2nd desiccant 55 are isolate
- the first and second desiccants 36 and 37 are uniformly mixed and filled in the drying chamber 35.
- the present invention is not limited to this.
- the present invention may be configured as a second modification shown in FIG. That is, the dryer device 61 includes a first drying cylinder 62 filled with the first desiccant 63 and a second drying cylinder 64 filled with the second desiccant 65 in the dryer case 61A. ing.
- the 1st desiccant 63 and the 2nd desiccant 65 are isolate
- the first and second desiccants 36 and 37 are uniformly mixed and filled in the drying chamber 35.
- the present invention is not limited to this.
- the first and second desiccants may be mixed unevenly without being uniformly mixed in the drying chamber.
- the outer cylinder 20 constituting the second drying cylinder is arranged so as to cover the entire outer circumference side of the inner cylinder 13 constituting the first drying cylinder. It was set as the structure which is a double cylinder structure.
- the present invention is not limited to this.
- the present invention may be configured as a third modified example shown in FIG.
- the first drying cylinder 72 filled with the first desiccant 75 and the second drying cylinder 76 filled with the second desiccant 79 are arranged side by side in the dryer case 71A.
- the first inflow port 73 and the second outflow port 78 are located at one end in the axial direction, and the first outflow port 74 and the second inflow port 77 are located at the other end in the axial direction.
- the air suspension system 1 is configured as an open type air suspension system.
- the present invention is not limited to this.
- the present invention may be configured as a fourth modified example shown in FIG. That is, the air suspension system 81 may be configured as a closed type air suspension system having a tank 82 for storing air discharged from each air suspension 2. The same applies to the second embodiment.
- the tank 82 stores the compressed air compressed by the compressor 9.
- the tank 82 and the compressor 9 are connected via the supply / discharge line 3 and the supply line 83, and the compressed air discharged from the compressor 9 is stored in the tank 82 through the supply / discharge line 3 and the supply line 83.
- the supply line 83 is a line for branching from the supply / exhaust line 3 between a supply / exhaust switching valve 88 described later and the dryer device 12 to supply compressed air to the tank 82.
- the tank valve 84 and the storage switching valve 85 are provided between the supply pipe 83 and the tank 82, for example.
- the tank valve 84 is constituted by a 2-port 2-position electromagnetic valve.
- the tank valve 84 has an open position (e) in which the supply pipe 83 is opened to allow gas supply / discharge to the tank 82, and a closed position in which the supply pipe 83 is closed to block gas supply / discharge to the tank 82. It is selectively switched to (f).
- the storage switching valve 85 is constituted by, for example, a 3-port 2-position electromagnetic direction switching valve in order to selectively connect the suction side or the discharge side of the compressor 9 to the tank 82.
- the storage switching valve 85 includes a supply / discharge position (g) for supplying and discharging compressed air to and from the tank 82 through the supply line 83, and a compressed air in the tank 82 through the first bypass line 86 on the suction side of the compressor 9. Is selectively switched to a switching position (h) to be supplied to.
- the first bypass pipe 86 is disposed between the suction pipe 6 and the storage switching valve 85, and when the storage switching valve 85 is switched to the switching position (h), the compressed air in the tank 82 is transferred to the compressor 9. It circulates toward the suction side.
- the second bypass pipe 87 is disposed between the suction pipe 6 and the supply / discharge switching valve 88.
- the supply / discharge switching valve 88 is switched to the switching position (j)
- the compression in each air suspension 2 is performed.
- the air is circulated toward the suction side of the compressor 9.
- the supply / discharge switching valve 88 is located between the supply / exhaust valve 5 and the compressor 9 and is provided in the middle of the supply / exhaust pipe 3.
- This supply / discharge switching valve 88 is constituted by an electromagnetic direction switching valve at a 3-port 2-position, almost the same as the storage switching valve 85.
- the supply / discharge switching valve 88 supplies / discharges compressed air to / from the air suspensions 2 through the supply / exhaust pipes 3 and the branch pipes 4 and the compressed air in the air suspensions 2. It is selectively switched to a switching position (j) that is supplied to the suction side of the compressor 9 through the second bypass line 87.
- the intake valve 89 is a valve that communicates and shuts off the suction pipe 6 connected to the suction side of the compressor 9 to the atmosphere.
- the intake valve 89 is constituted by a 2-port 2-position electromagnetic valve, almost the same as the tank valve 84, and has an open position (k) that allows the intake of gas by the compressor 9 by opening the intake pipe 6, and an intake pipe. 6 is selectively switched to the closed position (l) where the suction of gas by the compressor 9 is shut off.
- the pressure sensor 90 is located between the storage switching valve 85 and the compressor 9 and is provided in the middle of the supply line 83.
- the pressure sensor 90 detects the pressure of the compressed air in the tank 82 by detecting the pressure in the supply pipe 83.
- the compressed air compressed by the compressor 9 can be stored in the tank 82 and compressed from the exhaust valve 8. Air can be prevented from being exhausted wastefully.
- the dryer device 12 is configured to be filled with two types of first and second desiccants 36 and 37.
- the present invention is not limited to this, and the dryer device may be configured to be filled with three or more kinds of desiccant, and may be filled with, for example, the third desiccant of the characteristic line C shown in FIG. The same applies to the second embodiment.
- air suspensions 2 are provided on the front wheel side and the rear wheel side of the vehicle.
- the present invention is not limited to this, and the air suspension may be provided on either the front wheel side or the rear wheel side of the vehicle.
- the present invention is not limited to a four-wheeled vehicle, and may be applied to other vehicles such as a two-wheeled vehicle.
- a configuration is provided in which a plurality of desiccants for drying compressed air are filled. Thereby, the water
- the plurality of types of desiccants are provided separately from each other. Thereby, the water
- the plural kinds of desiccants are filled in series or in parallel with the flow direction of the compressed air. Thereby, the water
- the dryer device dries the first inflow port through which compressed air flows and the compressed air that flows in from the first inflow port.
- the first desiccant has a higher moisture adsorption performance when the compressed air is at a higher temperature than the second desiccant. Thereby, the water
- the second drying cylinder forms a part of the dryer case and is provided so as to cover the entire outer periphery of the first drying cylinder.
- a partition member that partitions the first desiccant and the second desiccant is provided between the second inflow port and the second outflow port.
- the volume of the second drying cylinder is larger than the volume of the first drying cylinder. Therefore, the filling amount of the second desiccant filled in the second drying cylinder can be increased.
- the second outlet is configured to be smaller than the first outlet. Thereby, compressed air can be retained in the 2nd drying room longer than the 1st drying room.
- the first drying cylinder and the second drying cylinder are arranged side by side, and the first inflow port and the second drying cylinder are arranged side by side.
- the outlet is located at one end in the axial direction, and the first outlet and the second inlet are located at the other end in the axial direction.
- an air suspension system comprising the dryer device according to any one of the first to eighth aspects, wherein the air suspension system is interposed between a vehicle body and an axle, and is adapted to supply and discharge air.
- An air suspension that performs high adjustment, a compressor that compresses air, and the dryer device that is provided on the discharge side of the compressor are provided. Thereby, compressed air from which moisture has been effectively removed can be supplied to the air suspension.
- a tank for storing the air discharged from the air suspension is provided. Thereby, it can be set as a closed type air suspension system.
- this invention is not limited to the above-mentioned Example, Various modifications are included.
- the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
- Air suspension 9 Compressor 12, 31, 51, 61, 71 Dryer device 12A, 32, 51A, 61A, 71A Dryer case 13 Inner cylinder (first drying cylinder) 14, 73 First flow Inlet 15, 74 First outlet 18, 36, 53, 63, 75 First desiccant 20 Outer cylinder (second drying cylinder) 21, 77 Second inlet 23, 78 Second outlet 24B Second other side filter (partition member) 26, 37, 55, 65, 79 Second desiccant 52, 62, 72 First drying cylinder 54, 64, 76 Second drying cylinder 82 tank
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
- Vehicle Body Suspensions (AREA)
- Compressor (AREA)
Abstract
Description
Claims (10)
- 圧縮空気を乾燥させる乾燥剤が、複数種類充填して設けられていることを特徴とするドライヤ装置。
- 請求項1に記載のドライヤ装置において
前記複数種類の乾燥剤は、それぞれ別々に分離されて設けられていることを特徴とするドライヤ装置。 - 請求項2に記載のドライヤ装置において、
前記複数種類の乾燥剤は、圧縮空気の流れ方向に対して直列または並列に設けられていることを特徴とするドライヤ装置。 - 請求項1ないし3のいずれか1項に記載のドライヤ装置において、
該ドライヤ装置は、
圧縮空気が流入する第1の流入口と、
前記第1の流入口から流入した圧縮空気を乾燥する第1の乾燥剤が充填された第1の乾燥筒と、
前記第1の乾燥筒から圧縮空気が流出する第1の流出口と、
前記第1の流出口から流出した圧縮空気が流入する第2の流入口と、
前記第2の流出口から流入した圧縮空気を乾燥する第2の乾燥剤が充填された第2の乾燥筒と、
前記第2の乾燥筒から圧縮空気が流出する第2の流出口と、が収容されるドライヤケースを有し、
前記第1の乾燥剤は、前記第2の乾燥剤と比較して圧縮空気が高温のときの水分吸着性能が高いことを特徴とするドライヤ装置。 - 請求項4に記載のドライヤ装置において、
前記第2の乾燥筒は、前記ドライヤケースの一部を成して、前記第1の乾燥筒の外周側を全周覆うように設けられ、
前記第2の流入口と前記第2の流出口との間には、前記第1の乾燥剤と前記第2の乾燥剤とを区画する仕切り部材が設けられていることを特徴とするドライヤ装置。 - 請求項4または5に記載のドライヤ装置において、
前記第1の乾燥筒の容積と比較して、前記第2の乾燥筒の容積のほうが大きいことを特徴とするドライヤ装置。 - 請求項4ないし6のいずれかに1項記載のドライヤ装置において、
前記第1の流出口と比較して前記第2の流出口は小さいことを特徴とするドライヤ装置。 - 請求項4ないし7のいずれか1項に記載のドライヤ装置において、
前記第1の乾燥筒と前記第2の乾燥筒とは、並んで配置され、
前記第1の流入口と前記第2の流出口とは、軸方向一端に位置し、
前記第1の流出口と前記第2の流入口とは、軸方向他端に位置することを特徴とするドライヤ装置。 - 請求項1ないし8のいずれかに記載のドライヤ装置を備えたエアサスペンションシステムであって、
車体と車軸との間に介装され空気の給排に応じて車高調整を行うエアサスペンションと、
空気を圧縮するコンプレッサと、
前記コンプレッサの吐出側に設けられる前記ドライヤ装置と、を有するエアサスペンションシステム。 - 請求項9に記載のエアサスペンションシステムにおいて、
前記エアサスペンションから排出された空気を貯留するタンクを設けることを特徴とするエアサスペンションシステム。
Priority Applications (5)
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DE112017005305.6T DE112017005305T5 (de) | 2016-10-21 | 2017-09-13 | Trocknervorrichtung und Luftfederungssystem |
KR1020197007799A KR102195779B1 (ko) | 2016-10-21 | 2017-09-13 | 드라이어 장치 및 에어 서스펜션 시스템 |
CN201780058168.XA CN109715268B (zh) | 2016-10-21 | 2017-09-13 | 干燥装置及空气悬架系统 |
US16/332,520 US10918991B2 (en) | 2016-10-21 | 2017-09-13 | Dryer apparatus and air suspension system |
JP2018546192A JP6626584B2 (ja) | 2016-10-21 | 2017-09-13 | ドライヤ装置およびエアサスペンションシステム |
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JP2016207056 | 2016-10-21 | ||
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US (1) | US10918991B2 (ja) |
JP (1) | JP6626584B2 (ja) |
KR (1) | KR102195779B1 (ja) |
CN (1) | CN109715268B (ja) |
DE (1) | DE112017005305T5 (ja) |
WO (1) | WO2018074107A1 (ja) |
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JP2020099879A (ja) * | 2018-12-25 | 2020-07-02 | 日立オートモティブシステムズ株式会社 | ドライヤ装置 |
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DE112017002226B4 (de) * | 2016-04-27 | 2023-04-06 | Aisin Corporation | Trocknerregenerationsverfahren für eine Luftfederungsvorrichtung |
JPWO2018021207A1 (ja) * | 2016-07-27 | 2019-05-09 | 日立オートモティブシステムズ株式会社 | エアサスペンションシステム |
CN112483079B (zh) * | 2020-12-03 | 2022-11-15 | 大庆石油管理局有限公司 | 一种气体钻井条件下录井仪样品气采集装置 |
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Also Published As
Publication number | Publication date |
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CN109715268A (zh) | 2019-05-03 |
JPWO2018074107A1 (ja) | 2019-07-11 |
CN109715268B (zh) | 2021-10-29 |
KR20190037336A (ko) | 2019-04-05 |
JP6626584B2 (ja) | 2019-12-25 |
US20190201840A1 (en) | 2019-07-04 |
DE112017005305T5 (de) | 2019-07-04 |
US10918991B2 (en) | 2021-02-16 |
KR102195779B1 (ko) | 2020-12-28 |
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