CN107614874B - Air compressor - Google Patents

Abstract

The application discloses air compressor arrangement, this air compressor arrangement includes: a 1 st compressor having a 1 st port wall formed with a 1 st inlet port; a 2 nd compressor having a 2 nd port wall formed with a 2 nd intake port; and an intake duct for guiding air to the 1 st and 2 nd intake ports. The 1 st port wall and the 2 nd port wall are disposed opposite to each other. The air inlet conduit is disposed between the 1 st port wall and the 2 nd port wall.

Description

Air compressor

Technical Field

The present invention relates to an air compressor arrangement for generating compressed air.

Background

Air compression devices for generating compressed air may be used for a wide variety of purposes. Compressed air generated by an air compressor mounted on a vehicle (e.g., a railway vehicle) may be supplied to a brake device for applying a braking force to the vehicle.

Patent document 1 proposes an air compression device including a plurality of compressors. If the air compression device includes a plurality of compressors, a large amount of compressed air can be generated in a short time. In addition, even after a failure occurs in some of the plurality of compressors, the generation of compressed air by the other compressor can be continued.

If the air compression device has a plurality of compressors, it is necessary to form a pipeline for guiding air for each of the plurality of compressors. Therefore, if a designer wants to incorporate a plurality of compressors in the air compression device, the designer needs to give a large size value to the air compression device. Such a situation may make it difficult to mount the air compressor device on another device (for example, a vehicle).

Documents of the prior art

Patent document

Patent document 1: japanese Utility model No. 3150077

Disclosure of Invention

The invention aims to provide a small air compression device with a plurality of compressors.

An air compression device according to an aspect of the present invention includes: a 1 st compressor having a 1 st port wall formed with a 1 st inlet port; a 2 nd compressor having a 2 nd port wall formed with a 2 nd intake port; and an intake duct for guiding air to the 1 st and 2 nd intake ports. The 1 st port wall and the 2 nd port wall are disposed opposite to each other. The air inlet conduit is disposed between the 1 st port wall and the 2 nd port wall.

The above-described technology can provide a small size value to an air compression device including a plurality of compressors.

The objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Drawings

Fig. 1 is a conceptual diagram of an air compressor according to embodiment 1.

Fig. 2 is a conceptual diagram of the air compressor according to embodiment 2.

Fig. 3A is a schematic perspective view of the air compressor according to embodiment 3.

Fig. 3B is another perspective view of the air compressor assembly shown in fig. 3A.

Fig. 4 is a schematic plan view showing an internal structure of the air compressor shown in fig. 3A.

Fig. 5 is a schematic cross-sectional view showing the structure of the base end portion of the intake pipe of the air compressor shown in fig. 3A.

Fig. 6 is a schematic enlarged cross-sectional view of the intake pipe shown in fig. 5.

Fig. 7 is a schematic enlarged perspective view of the delivery pipe of the air compressor shown in fig. 3A.

Fig. 8 is a schematic cross-sectional view of a duct portion of the air compressor shown in fig. 3A.

Fig. 9 is a schematic perspective view of the air compressor shown in fig. 3A.

Fig. 10A is a schematic perspective view of a cold flow adjustment box of the air compression device shown in fig. 3A (embodiment 4).

Fig. 10B is a schematic rear view of the cold flow adjustment tank shown in fig. 10A.

Fig. 11 is a partially assembled view of the air compressor assembly shown in fig. 3A (embodiment 5).

Fig. 12 is a schematic perspective view of the 1 st transmission part of the air compressor shown in fig. 11.

Fig. 13 is a partially assembled view of the air compressor assembly shown in fig. 3A (embodiment 6).

Fig. 14 is a schematic perspective view of the lower support plate of the air compressor assembly shown in fig. 13.

Detailed Description

< embodiment 1 >

If compressed air is generated by a plurality of compressors, a large space is required for arranging a pipe for supplying air to the compressors. The present inventors have proposed a design technique for housing a pipeline in a narrow space. In embodiment 1, a technique capable of supplying air to a plurality of compressors in a narrow space is described.

Fig. 1 is a conceptual diagram of an air compressor 100 according to embodiment 1. An air compressor assembly 100 is described with reference to fig. 1.

The air compression device 100 includes a 1 st compressor 210, a 2 nd compressor 220, and an air intake conduit 300. The intake conduit 300 is connected to the 1 st compressor 210 and the 2 nd compressor 220. During operation of the 1 st compressor 210 and/or the 2 nd compressor 220, the 1 st compressor 210 and/or the 2 nd compressor 220 create a negative pressure environment within the air intake conduit 300. As a result, the 1 st compressor 210 and the 2 nd compressor 220 can respectively suck air through the intake duct 300. The 1 st compressor 210 and the 2 nd compressor 220 respectively compress the sucked air and generate compressed air. Compressed air is supplied from the 1 st compressor 210 and the 2 nd compressor 220 to other devices using the compressed air, respectively. The compressed air supply from the 1 st compressor 210 and the 2 nd compressor 220 to the other devices may depend on various known piping techniques. The principle of the present embodiment is not limited to a specific technique for supplying compressed air to another device.

For example, compressed air may be supplied to a brake device (not shown) for generating a braking force for the railway vehicle. Alternatively, the compressed air may be supplied to another device using the compressed air (for example, a pneumatic device (not shown) used to open and close a door of the vehicle). The principle of the present embodiment is not limited to a specific use of the compressed air.

The 1 st compressor 210 includes a 1 st housing 211 and a compression mechanism 212. The compression mechanism 212 is housed in the 1 st housing 211. The compression mechanism 212 may have a structure similar to that of a conventional screw compressor. Instead, the compression mechanism 212 may have a structure that a general rotary compressor has. Further alternatively, the compression mechanism 212 may have a structure of a general swing type compressor. Further alternatively, the compression mechanism 212 may have a structure of a general reciprocating compressor. The principle of the present embodiment is not limited to a specific structure of the compression mechanism 212.

The 1 st shell 211 includes a 1 st port wall 213 opposite the 2 nd compressor 220. The 1 st inlet port 214 is formed in the 1 st port wall 213. The intake conduit 300 is connected to the 1 st intake port 214. Thus, the 1 st compressor 210 is capable of drawing air from the 1 st air intake 214 and generating compressed air.

The 2 nd compressor 220 includes a 2 nd shell 221 and a compression mechanism 222. The compression mechanism 222 is housed in the 2 nd case 221. The compression mechanism 222 may have a structure similar to that of a conventional screw compressor. Instead, the compression mechanism 222 may have a structure that a general rotary compressor has. Further alternatively, the compression mechanism 222 may have a structure that a typical swing type compressor has. Further alternatively, the compression mechanism 222 may have a structure that a general reciprocating compressor has. The principle of the present embodiment is not limited to a specific structure of the compression mechanism 222.

The 2 nd shell 221 includes a 2 nd port wall 223 opposite the 1 st port wall 213 of the 1 st compressor 210. A 2 nd inlet 224 is formed in the 2 nd port wall 223. The intake conduit 300 is connected to the 2 nd intake port 224. Thus, the 2 nd compressor 220 is capable of drawing air from the 2 nd air intake 224 and generating compressed air.

The air intake conduit 300 includes a main tube 310, a 1 st branch tube 311, and a 2 nd branch tube 312. The 1 st branch pipe 311 and the 2 nd branch pipe 312 branch from the main pipe 310, respectively. The 1 st branch line 311 is connected to the 1 st intake port 214 of the 1 st compressor 210. The 2 nd branch pipe 312 is connected with the 2 nd intake port 224 of the 2 nd compressor 220.

When the 1 st compressor 210 is operated, the intake pipe 300 becomes a negative pressure environment as described above. As a result, air flows from the main pipe 310 toward the 1 st branch pipe 311. The 1 st branch pipe 311 serves to guide air toward the 1 st intake port 214. When the 2 nd compressor 220 is operated, the intake line 300 becomes a negative pressure environment as described above. As a result, air flows from the main pipe 310 toward the 2 nd branch pipe 312. The 2 nd branch 312 is used to direct air to the 2 nd intake 224.

Since the intake duct 300 extends between the 1 st port wall 213 and the 2 nd port wall 223, the 1 st compressor 210 and the 2 nd compressor 220 can share a piping space for sucking air. Therefore, the designer can give the air compressor apparatus 100a narrow space as a piping space for sucking air.

In the present embodiment, the intake pipe 300 is a branch pipe. Instead, the intake line may be formed using a pipe dedicated to guiding the air supplied to the 1 st compressor 210 and a pipe dedicated to guiding the air supplied to the 2 nd compressor 220. In this case, the tubes are each disposed between the 1 st port wall 213 and the 2 nd port wall 223. The principle of the present embodiment is not limited to a specific configuration of the intake pipe.

The base end (not shown) of the main pipe 310 of the intake duct 300 may communicate with a space outside a casing (not shown) that forms a housing space for housing the 1 st compressor 210 and the 2 nd compressor 220. In this case, the air outside the housing can directly flow into the main pipe 310. Instead, the proximal end of the main tube 310 may be housed in the housing. In this case, the air in the housing flows into the main pipe 310. The principle of the present embodiment is not limited to a specific arrangement position of the proximal end portion of the main tube 310.

The air intake conduit 300 may also incorporate a filter device for removing dust from the drawn-in air. In this case, the cleaned air is supplied to the 1 st compressor 210 and the 2 nd compressor 220. Instead, other appropriate cleaning techniques may be applied to clean the air supplied to the 1 st compressor 210 and the 2 nd compressor 220. The principle of the present embodiment is not limited to a specific cleaning technique.

< embodiment 2 >

The space forming the delivery line for guiding the compressed air is also shared by the plurality of compressors, as is the case with the intake line. In embodiment 2, an air compression apparatus including a plurality of compressors connected to a delivery line formed in a common space will be described.

Fig. 2 is a conceptual diagram of an air compressor 100A according to embodiment 2. The air compressor 100A is explained with reference to fig. 2. Elements having the same functions as those of embodiment 1 are denoted by the same reference numerals. The description of embodiment 1 refers to elements denoted by the same reference numerals.

As in embodiment 1, the air compressor assembly 100A includes an intake conduit 300. The description of embodiment 1 is referred to the intake pipe 300.

The air compression device 100A further includes a 1 st compressor 210A, a 2 nd compressor 220A, a housing 400, and a delivery line 500. The housing 400 forms a housing space 410 housing the 1 st compressor 210A and the 2 nd compressor 220A. As in embodiment 1, the 1 st compressor 210A and the 2 nd compressor 220A each receive air via an intake line 300. The 1 st compressor 210A and the 2 nd compressor 220A compress air received from the intake line 300, respectively, and generate compressed air. The compressed air is discharged out of the casing 400 via the discharge line 500. In the present embodiment, the 1 st compressed air is exemplified by the compressed air generated by the 1 st compressor 210A. The 2 nd compressed air is exemplified by the compressed air generated by the 2 nd compressor 220A.

The outlet line 500 may also be connected to a cooling device for cooling the compressed air. As a result, the compressed air is appropriately cooled. The compressed air may then also be dehumidified. As a result, dry compressed air is generated. The compressed air passing through the delivery line 500 may be subjected to various other treatments. The principle of the present embodiment is not limited to a specific process performed on the compressed air after passing through the delivery pipe 500.

The 1 st compressor 210A includes a compression mechanism 212, as in embodiment 1. The description of embodiment 1 is referred to the compression mechanism 212.

The 1 st compressor 210A further includes a 1 st shell 211A. The compression mechanism 212 is housed in the 1 st case 211A.

The 1 st shell 211A includes a 1 st port wall 213A opposite the 2 nd compressor 220A. Similarly to embodiment 1, the 1 st inlet port 214 is formed in the 1 st port wall 213A. The description of embodiment 1 is referred to the 1 st gas inlet 214.

The 1 st port wall 213A is also formed with a 1 st delivery port 215. The compressed air generated by the compression mechanism 212 is sent to the sending-out pipe 500 through the 1 st sending-out port 215.

The 2 nd compressor 220A includes a compression mechanism 222, as in embodiment 1. The description of embodiment 1 is referred to the compression mechanism 222.

The 2 nd compressor 220A further includes a 2 nd shell 221A. The compression mechanism 222 is housed in the 2 nd casing 221A.

The 2 nd shell 221A includes a 2 nd port wall 223A opposite to the 1 st port wall 213A of the 1 st compressor 210A. Similarly to embodiment 1, the 2 nd inlet 224 is formed in the 2 nd port wall 223A. The description of embodiment 1 is referred to the 2 nd intake port 224.

A 2 nd outlet port 225 is also formed in the 2 nd port wall 223A. The compressed air generated by the compression mechanism 222 is sent to the sending-out line 500 through the 2 nd sending-out port 225.

The delivery pipe 500 includes a 1 st delivery pipe 510, a 2 nd delivery pipe 520, a merging portion 530, and a merging pipe 540. The 1 st delivery pipe 510 is connected to the merging portion 530 and the 1 st delivery port 215 of the 1 st compressor 210A. The compressed air generated by the 1 st compressor 210A flows from the 1 st delivery port 215 to the merging portion 530 through the 1 st delivery pipe 510. The 2 nd discharge pipe 520 is connected to the merging portion 530 and the 2 nd discharge port 225 of the 2 nd compressor 220A. The compressed air generated by the 2 nd compressor 220A flows from the 2 nd outlet 225 to the merging portion 530 through the 2 nd outlet pipe 520. The 1 st delivery pipe 510 and the 2 nd delivery pipe 520 are connected to the 1 st delivery port 215 and the 2 nd delivery port 225, respectively, and are disposed between the 1 st port wall 213A and the 2 nd port wall 223A.

The compressed air generated by the 1 st compressor 210A merges with the compressed air generated by the 2 nd compressor 220A at a merging portion 530. The junction pipe 540 forms a delivery path from the junction 530 to the outside of the casing 400. The compressed air flows from the joining portion 530 to the outside of the casing 400 through the joining pipe 540.

In the present embodiment, the delivery pipe 500 includes a junction 530. Instead, the delivery line may be formed of a pipe for guiding the compressed air generated by the 1 st compressor 210A to the outside of the casing 400 and a pipe for guiding the compressed air generated by the 2 nd compressor 220A to the outside of the casing 400. In this case, a merging element for merging the compressed air generated by the 1 st compressor 210A and the compressed air generated by the 2 nd compressor 220A is not necessary. The principle of the present embodiment is not limited to a specific structure of the delivery pipe.

< embodiment 3 >

A designer can design various air compression devices based on the design principle described in connection with embodiment 2. In embodiment 3, an exemplary air compressor will be described. In the following description, terms indicating directions such as "upper", "lower", "left", "right", "front", and "rear" are used. These terms are used to clarify the description. The principle of the air compression device is not limited in any way by these terms.

Fig. 3A and 3B are schematic perspective views of an air compressor 100B according to embodiment 3. The air compressor 100B is explained with reference to fig. 2 to 3B.

The air compression device 100B includes a casing 400B, a cooling device 610, a dehumidifying device 620 (see fig. 3B), a control device 630, a right connection 650, and a left connection 660. The housing 400B corresponds to the housing 400 described with reference to fig. 2.

The housing 400B includes a top plate 420 (see fig. 3A), a bottom plate 430 (see fig. 3B), and an outer circumferential wall 440. The top plate 420 and the bottom plate 430 are generally rectangular. The top plate 420 is connected to a lower surface of a vehicle (not shown) by a right connecting portion 650 and a left connecting portion 660. The bottom plate 430 is transverse below the top plate 420. A peripheral wall 440 is disposed upright between the top plate 420 and the bottom plate 430.

The outer peripheral wall 440 includes a front mounting wall 450 (see fig. 3A), a rear mounting wall 460 (see fig. 3B), a 1 st wall 470 (see fig. 3A), a 2 nd wall 480 (see fig. 3B), and an intake wall 479 (see fig. 3A). The front mounting wall 450 forms a surface substantially parallel to an imaginary extension plane of the vehicle side surface extending in the traveling direction of the vehicle. The intake wall 479 is disposed below the front mounting wall 450. The intake wall 479 allows air to pass through. Air outside the housing 400B flows into the housing 400B through the intake wall 479. The rear mounting wall 460 is disposed upright on the opposite side from the front mounting wall 450. The 1 st wall 470 is vertically disposed between the right edge of the front mounting wall 450 and the right edge of the rear mounting wall 460. The 2 nd wall 480 is disposed upright between the left edge of the front mounting wall 450 and the left edge of the rear mounting wall 460.

As shown in fig. 3A, the front mounting wall 450 includes a holding plate 451 and a substantially cylindrical filter cover 452. The filter cover 452 is fixed to the holding plate 451. The filter cover 452 protrudes forward from the holding plate 451. A filter device, which will be described later, for removing dust from the air drawn in by suction is provided on the inner surface of the filter cover 452.

The filter cover 452 includes a generally cylindrical outer housing 453 and a lever lock 454. The operator who performs the inspection and repair of the air compressor 100B can manually operate the lever lock 454 without using a tool such as a screwdriver or a wrench. The operator can operate the lever lock 454 and fix the outer case 453 to the holding plate 451. Further, the worker can also operate the lever lock 454 to separate the outer case 453 from the holding plate 451. When the outer case 453 is detached from the holding plate 451, the operator can access the filter member (not shown) housed in the case 400B. Thus, the operator can easily replace the filter member. The lever lock 454 may also be a conventional lock component commercially available. Other suitable securing mechanisms may be applied to the filter cover 452 in place of the lever lock 454.

As shown in fig. 3B, the rear mounting wall 460 includes a holding plate 461 and a duct portion 462. The pipe portion 462 protrudes rearward from the holding plate 461. In order to cool various devices in the casing 400B, cooling air flows in the casing 400B. The duct portion 462 forms a horizontally long opening region as an outlet of the cooling air used in the housing 400B. The cooling air used for cooling in the casing 400B is sent out from the duct portion 462.

The cooling device 610 includes a cooling tube 611 extending in a meandering manner, and a protective cover 612 surrounding an extended region of the cooling tube 611. The compressed air generated in the casing 400B flows into the cooling pipe 611. Since the cooling pipe 611 is disposed outside the casing 400B that houses a heat source (for example, a compressor (not shown)), the compressed air in the cooling pipe 611 can be efficiently cooled.

A portion of the cooling pipe 611 is opposite to the pipe portion 462. Therefore, the compressed air in the cooling pipe 611 is also cooled by the cooling air blown out from the casing 400B.

The dehumidifying apparatus 620 is disposed below the cooling apparatus 610. Since the air compression device 100B does not include equipment existing below the dehumidifying device 620, even if liquid leakage occurs due to a failure of the dehumidifying device 620, other equipment incorporated in the air compression device 100B is not easily damaged.

Like the dehumidifying apparatus 620, the control apparatus 630 is disposed below the cooling apparatus 610. The control means 630 is arranged beside the dehumidifying means 620. The control device 630 is used to control a compressor (not shown) and other devices disposed in the casing 400B.

The top plate 420 includes a front edge 421 (refer to fig. 3A), a rear edge 422, a right edge 423 (refer to fig. 3A), and a left edge 424 (refer to fig. 3B). The front edge 421 extends along a corner formed by the top plate 420 and the front mounting wall 450. The rear edge 422 extends along a corner formed by the top plate 420 and the rear mounting wall 460. The right edge 423 extends along a corner formed by the top plate 420 and the 1 st wall 470. The left edge 424 extends along a corner formed by the top plate 420 and the 2 nd wall 480.

As shown in fig. 3A, the right connecting portion 650 includes a right frame member 651 and two anti-vibration rings 652, 653. The right frame member 651 has a substantially letter C-shaped cross section. The right frame member 651 extends along the right edge 423 of the top plate 420. The vibration-proof ring 652 is disposed on a corner portion formed by the right edge 423 and the front edge 421. The vibration preventing ring 653 is disposed on a corner portion formed by the right edge 423 and the rear edge 422. The vibration-proof rings 652 and 653 are sandwiched between the right frame member 651 and the top plate 420. The vibration isolation rings 652 and 653 are used to reduce vibration transmitted from the housing 400B to the vehicle (not shown).

The left connecting portion 660 includes a left frame member 661 and two vibration preventing rings 662, 663. The left frame member 661 has a substantially letter C-shaped cross section. The left frame member 661 extends along the left edge 424 of the top plate 420. The vibration preventing ring 662 is disposed on a corner portion formed by the left edge 424 and the front edge 421. The vibration preventing ring 663 is disposed on the corner portion formed by the left edge 424 and the rear edge 422. The vibration isolation rings 662 and 663 are sandwiched between the left frame member 661 and the top plate 420. The vibration isolation rings 662 and 663 reduce vibrations transmitted from the casing 400B to the vehicle (not shown).

Fig. 4 is a schematic plan view showing the internal structure of the air compressor 100B. The top plate 420 is removed from the air compressor assembly 100B shown in fig. 4. The air compressor 100B is further described with reference to fig. 2 to 4.

The air compression device 100B includes a 1 st compressor 210B, a 2 nd compressor 220B, an intake conduit 300B, and a delivery conduit 500B. The 1 st compressor 210B corresponds to the 1 st compressor 210A described with reference to fig. 2. The 2 nd compressor 220B corresponds to the 2 nd compressor 220A described with reference to fig. 2. The intake conduit 300B corresponds to the intake conduit 300 described with reference to fig. 2. The delivery pipe 500B corresponds to the delivery pipe 500 described with reference to fig. 2.

Fig. 5 is a schematic cross-sectional view showing the structure of the base end portion of the intake pipe 300B. The intake pipe 300B is described with reference to fig. 2, 3A, 4, and 5.

As shown in fig. 5, the intake conduit 300B includes an intake conduit 310B, a filter arrangement 320, and a trim seal 331. The intake duct 310B corresponds to the main duct 310 shown in fig. 2. Filter device 320 is disposed between filter cover 452 and intake duct 310B. The adjustment seal 331 is a rubber ring member for hermetically connecting the filter device 320 to the intake duct 310B.

The intake duct 310B is a hollow box member having a substantially rectangular parallelepiped shape. During operation of the 1 st compressor 210B and/or the 2 nd compressor 220B, a negative pressure environment is created within the intake conduit 310B. As a result, air outside the housing 400B passes through the filter cover 452 and through the filter device 320. The filter device 320 is used to remove dust floating in the inflow air. The air cleaned by the filter device 320 flows into the intake duct 310B.

As shown in fig. 4, the 1 st compressor 210B includes a 1 st port wall 213B. The 2 nd compressor 220B includes a 2 nd port wall 223B. The 1 st port wall 213B corresponds to the 1 st port wall 213A described with reference to fig. 2. The 2 nd port wall 223B corresponds to the 2 nd port wall 223A described with reference to fig. 2. The 1 st port wall 213B is opposite the 2 nd port wall 223B.

An air inlet duct 310B extends from the filter device 320 toward the rear mounting wall 460 in the space between the 1 st port wall 213B and the 2 nd port wall 223B. Therefore, the air compressor apparatus 100B can supply air to the 1 st compressor 210B and the 2 nd compressor 220B from the outside of the casing 400B in a narrow space.

Fig. 6 is a schematic enlarged cross-sectional view of the intake pipe 300B around the intake duct 310B. Intake conduit 300B is further described with reference to fig. 2, 4, and 6.

The air intake conduit 300B includes two linking pipes 311B, 312B and two trim seals 332, 333. The connecting pipe 311B corresponds to the 1 st branch pipe 311 shown in fig. 2. The junction pipe 312B corresponds to the 2 nd branch pipe 312 shown in fig. 2. The trim seal 332 is used to join the connection between the junction pipe 311B and the intake duct 310B. The adjustment seal 333 is used for the connection between the junction pipe 312B and the intake duct 310B.

The intake duct 310B includes a base end wall (front end wall) 341, a tip end wall (rear end wall) 342, a right wall 343, a left wall 344, a top wall 345 (refer to fig. 4), and a bottom wall 346. An adjustment seal 331 is attached to the base end wall 341. A portion of the filter device 320 is inserted into the intake duct 310B through the trim seal 331. The distal end wall 342 is provided upright on the opposite side of the base end wall 341. The top end wall 342 forms the downstream end of the intake conduit 310B. The right wall 343 is opposite to the 1 st port wall 213B of the 1 st compressor 210B. The right wall 343 extends along the 1 st port wall 213B between the base end wall 341 and the tip end wall 342. The left wall 344 is opposite the 2 nd port wall 223B of the 2 nd compressor 220B. Left wall 344 extends along port 2 wall 223B between base end wall 341 and tip end wall 342. The top wall 345 encloses a rectangular area surrounded by the upper edges of the base end wall 341, the top end wall 342, the right wall 343, and the left wall 344. Bottom wall 346 encloses a rectangular area surrounded by the lower edges of base end wall 341, top end wall 342, right wall 343, and left wall 344.

The 1 st port wall 213B of the 1 st compressor 210B includes a cylindrical 1 st inlet port 214B protruding toward the right wall 343 of the inlet duct 310B. The 1 st intake port 214B corresponds to the 1 st intake port 214 shown in fig. 2.

The trim seal 332 is mounted to the right wall 343 of the intake duct 310B. The adjustment seal 332 is a rubber ring member. The trim seal 332 is substantially coaxial with the 1 st inlet port 214B of the 1 st compressor 210B.

The linking tube 311B includes a 1 st end 313 and a 2 nd end 314. The 1 st end 313 is inserted toward the trim seal 332. A portion of the 1 st end 313 may also protrude into the interior of the intake duct 310B. The trim seal 332 is used to hermetically seal between the 1 st end 313 of the coupling tube 311B and the right wall 343 of the intake duct 310B. The 2 nd end 314 of the connecting pipe 311B is inserted into the 1 st inlet port 214B of the 1 st compressor 210B. A suitable sealing member such as a sealing tape is applied to the connection between the 2 nd end 314 of the junction pipe 311B and the 1 st inlet port 214B of the 1 st compressor 210B.

The 2 nd port wall 223B of the 2 nd compressor 220B includes a cylindrical 2 nd intake port 224B protruding toward the left wall 344 of the intake duct 310B. The 2 nd intake port 224B corresponds to the 2 nd intake port 224 shown in fig. 2.

Adjustment seal 333 is mounted to left wall 344 of intake duct 310B. The adjustment packing 333 is a rubber ring member. The trim seal 333 is substantially coaxial with the 2 nd inlet 224B of the 2 nd compressor 220B.

The joint tube 312B includes a 1 st end 315 and a 2 nd end 316. The 1 st end 315 is inserted toward the adjustment seal 333. A portion of the 1 st end 315 may also protrude into the interior of the intake duct 310B. The adjustment seal 333 is used to hermetically seal between the 1 st end 315 of the junction tube 312B and the left wall 344 of the intake duct 310B. The 2 nd end 316 of the connecting pipe 312B is inserted into the 2 nd inlet 224B of the 2 nd compressor 220B. A suitable sealing member, such as a sealing band, is applied to the connection between the 2 nd end 316 of the junction tube 312B and the 2 nd inlet 224B of the 2 nd compressor 220B.

As shown in fig. 4, the delivery line 500B includes a 1 st delivery pipe 510B, a 2 nd delivery pipe 520B, a junction 530B, and a junction 540B. The 1 st compressor 210B receives air through a connection pipe 311B (see fig. 6). The 1 st compressor 210B compresses the air supplied through the connection pipe 311B, and generates compressed air. The 2 nd compressor 220B receives air through a connection pipe 312B (see fig. 6). The 2 nd compressor 220B compresses the air supplied through the connection pipe 312B, and generates compressed air.

The 1 st delivery pipe 510B is connected to the 1 st port wall 213B of the 1 st compressor 210B above the intake duct 310B. The 2 nd delivery pipe 520B is connected to the 2 nd port wall 223B of the 2 nd compressor 220B above the intake duct 310B. Thus, as shown in fig. 4, the 1 st delivery pipe 510B and the 2 nd delivery pipe 520B partially overlap the intake duct 310B. The connection portion between the 1 st delivery pipe 510B and the 1 st port wall 213B of the 1 st compressor 210B corresponds to the 1 st delivery port 215 described with reference to fig. 2. The connection between the 2 nd delivery pipe 520B and the 2 nd port wall 223B of the 2 nd compressor 220B corresponds to the 2 nd delivery port 225 described with reference to fig. 2. The 1 st delivery pipe 510B corresponds to the 1 st delivery pipe 510 described with reference to fig. 2. The 2 nd delivery pipe 520B corresponds to the 2 nd delivery pipe 520 described with reference to fig. 2.

Fig. 7 is a schematic enlarged perspective view of the delivery pipe 500B around the junction 530B. The delivery pipe 500B will be described with reference to fig. 2, 4, and 7.

As shown in fig. 4, the joining portion 530B is disposed in the vicinity of the front mounting wall 450 of the casing 400B. The 1 st delivery pipe 510B and the 2 nd delivery pipe 520B are bent toward the front mounting wall 450 and connected to the joining portion 530. The compressed air generated by the 1 st compressor 210B flows into the merging portion 530B through the 1 st delivery pipe 510B. The compressed air generated by the 2 nd compressor 220B flows into the merging portion 530B through the 2 nd delivery pipe 520B. The compressed air generated by the 1 st compressor 210B merges with the compressed air generated by the 2 nd compressor 220B at a merging portion 530B. The joining portion 530B corresponds to the joining portion 530 described with reference to fig. 2.

The joining portion 530B includes a manifold 531, a right check valve 532 (see fig. 7), a left check valve 533 (see fig. 7), and two 1 st fixing members 534, 535. The manifold 531 is a substantially rectangular parallelepiped. The manifold 531 includes an upper surface 551, a lower surface 552 (see fig. 7), and a rear surface 553. A right check valve 532 and a left check valve 533 are mounted to a lower surface 552 of the manifold 531. The 1 st fixing members 534, 535 are mounted to the upper surface 551. Manifold 540B extends from rear surface 553.

As shown in fig. 7, the 1 st delivery pipe 510B is connected to the right check valve 532. The compressed air flowing along the 1 st delivery pipe 510B flows into the manifold 531 via the right check valve 532. The right check valve 532 serves to block the flow of the compressed air returning from the manifold 531 to the 1 st delivery pipe 510B. The 2 nd delivery pipe 520B is connected to the left check valve 533. The compressed air flowing along the 2 nd delivery pipe 520B flows into the manifold 531 via the left check valve 533. The left check valve 533 blocks the flow of the compressed air returning from the manifold 531 to the 2 nd delivery pipe 520B.

A merging inner pipe (not shown) for merging two flows of compressed air is formed inside the manifold 531. The compressed air merged by the merging inner pipe passes through the merging pipe 540B and is discharged from the manifold 531.

As shown in fig. 7, the 1 st fixing member 534 includes a 1 st mount 561 and a 2 nd mount 562. The 1 st mounting part 561 is connected to the 1 st port wall 213B of the 1 st compressor 210B. The 2 nd mounting portion 562 is connected to an upper surface 551 of the manifold 531.

The 1 st mounting part 561 is formed in a substantially letter L shape. The 1 st mounting portion 561 includes a vertical plate portion 563 and a horizontal plate portion 564. The 1 st adjustment structure 565 is formed in a vertically long hole in the vertical plate portion 563. A manufacturer assembling the air compressor assembly 100B can insert an appropriate fastener such as a screw into the 1 st adjustment structure 565 to connect the 1 st mounting portion 561 to the 1 st port wall 213B of the 1 st compressor 210B. The manufacturer can change the height position of the manifold 531 by moving the 1 st fixing member 534 in the vertical direction along the extending direction of the 1 st adjustment structure 565. Since the relative position of the manifold 531 with respect to the 1 st compressor 210B and the 2 nd compressor 220B is adjusted in the height direction, an excessive load is not applied to the 1 st delivery pipe 510B and the junction pipe 540B even if there is an installation error of the 1 st compressor 210B and the 2 nd compressor 220B.

The horizontal plate portion 564 extends from the upper end of the vertical plate portion 563 toward the front mounting wall 450. The 2 nd mounting portion 562 is bent from the horizontal plate portion 564 and follows the upper surface 551 of the manifold 531. The 1 st adjustment structure 566 is formed in the horizontal plate portion 564 by a long hole that is long in the horizontal direction (left and right). A manufacturer assembling the air compressor assembly 100B can insert appropriate fasteners, such as screws, into the 1 st adjustment feature 566 to connect the 2 nd mounting portion 562 to the manifold 531. The manufacturer can change the horizontal position of the manifold 531 by moving the 1 st fixing member 534 in the horizontal direction along the extending direction of the 1 st adjusting structure 566. Since the relative position of the manifold 531 with respect to the 1 st compressor 210B and the 2 nd compressor 220B is adjusted in the horizontal direction, an excessive load is not applied to the 1 st delivery pipe 510B and the junction pipe 540B even if there is an installation error of the 1 st compressor 210B and the 2 nd compressor 220B.

As shown in fig. 7, the 1 st fixing member 535 includes a 1 st mounting part 571 and a 2 nd mounting part 572. The 1 st installation part 571 is connected to the 2 nd port wall 223B of the 2 nd compressor 220B. The 2 nd mounting part 572 is connected to an upper surface 551 of the manifold 531.

The 1 st mounting part 571 is formed in a substantially L-letter shape. The 1 st mounting portion 571 includes a vertical plate portion 573 and a horizontal plate portion 574. A vertically long hole (not shown) is formed in the vertical plate portion 573. A manufacturer who assembles the air compressor apparatus 100B can insert an appropriate fixing member such as a screw into the elongated hole and connect the 1 st mounting portion 571 to the 2 nd port wall 223B of the 2 nd compressor 220B. The manufacturer can change the height position of the manifold 531 by moving the 1 st fixing member 535 in the vertical direction along the extending direction of the long hole. Since the relative position of the manifold 531 with respect to the 1 st compressor 210B and the 2 nd compressor 220B is adjusted in the height direction, an excessive load is not applied to the 2 nd delivery pipe 520B and the junction pipe 540B even if there is an installation error of the 1 st compressor 210B and the 2 nd compressor 220B.

The horizontal plate portion 574 extends from the upper end of the vertical plate portion 573 toward the front mounting wall 450. The 2 nd mounting portion 572 is bent from the horizontal plate portion 574 and follows the upper surface 551 of the manifold 531. The 1 st adjustment structure 576 is formed in the horizontal plate portion 574 by a long hole that is long in the horizontal direction (left and right). A manufacturer assembling the air compressor assembly 100B can insert an appropriate fastener such as a screw into the 1 st adjustment structure 576 to connect the 2 nd mounting portion 572 to the manifold 531. The manufacturer can change the horizontal position of the manifold 531 by moving the 1 st fixing member 535 in the horizontal direction along the extending direction of the 1 st adjusting structure 576. Since the relative position of the manifold 531 with respect to the 1 st compressor 210B and the 2 nd compressor 220B is adjusted in the horizontal direction, an excessive load is not applied to the 2 nd delivery pipe 520B and the junction pipe 540B even if there is an installation error of the 1 st compressor 210B and the 2 nd compressor 220B.

In the present embodiment, the manifold 531 is fixed by the 1 st fixing members 534, 535. Instead, the manifold 531 may be fixed by one of the 1 st fixing members 534, 535.

In the present embodiment, the 1 st adjustment structures 565, 566, 576 are vertically long holes and/or horizontally long holes. Instead, the 1 st adjustment structure may be a notch that is long in the vertical direction, the horizontal direction, and/or other directions. The principle of the present embodiment is not limited to a specific shape of the opening region for adjusting the position of the manifold 531.

The 1 st adjustment structure may be a plurality of through holes at different positions. The manufacturer may also select an appropriate through hole from the plurality of through holes and set an appropriate position of the manifold 531. Therefore, the principle of the present embodiment is not limited to the specific structure of the 1 st adjustment structure.

The 1 st delivery pipe 510B includes a base pipe 511 (see fig. 4), a 1 st bent pipe 512 (see fig. 4), a horizontal pipe 513, a 2 nd bent pipe 514 (see fig. 7), a vertical pipe 515 (see fig. 7), a 1 st nut 516 (see fig. 7), and a 2 nd nut 517 (see fig. 7). The base end pipe 511 is connected to the 1 st port wall 213B of the 1 st compressor 210B. The connection portion between the base end pipe 511 and the 1 st port wall 213B corresponds to the 1 st delivery port 215 described with reference to fig. 2. The base end pipe 511 extends from the 1 st port wall 213B toward the 2 nd port wall 223B of the 2 nd compressor 220B. The 1 st bend 512 is attached to the tip end of the base pipe 511. The 1 st elbow 512 changes the flow direction of the compressed air generated by the 1 st compressor 210B from the direction toward the 2 nd port wall 223B of the 2 nd compressor 220B to the direction toward the front mounting wall 450.

Nut 1 516 is rotatably mounted to elbow 2 514. The upstream end of the horizontal tube 513 is threadedly engaged with the 1 st elbow 512. The downstream end of horizontal tube 513 is threadedly engaged with a 1 st nut 516. Thus, the manufacturer can rotate the 1 st nut 516 to properly adjust the distance between the 1 st bent tube 512 and the 2 nd bent tube 514.

The 2 nd nut 517 is rotatably attached to the right check valve 532. The lower end of vertical pipe 515 is threadedly engaged with elbow 2 514. The upper end of the vertical pipe 515 is threadedly engaged with the 2 nd nut 517. Thus, the manufacturer can rotate the 2 nd nut 517 to appropriately adjust the distance between the right check valve 532 and the 2 nd elbow 514. In the present embodiment, the bent pipe is exemplified by a group of the 1 st bent pipe 512, the horizontal pipe 513, the 2 nd bent pipe 514, and the vertical pipe 515.

In the present embodiment, the 2 nd adjustment structure is exemplified by a set of the horizontal tube 513 and the 1 st nut 516, and a set of the vertical tube 515 and the 2 nd nut 517. The set of horizontal tube 513 and 1 st nut 516 helps to adjust the length of the horizontal direction guiding interval of the compressed air. The set of the vertical tube 515 and the 2 nd nut 517 helps to adjust the length of the vertical direction guide section of the compressed air. Instead, the 2 nd adjustment structure may be configured to adjust the length of the compressed air guide section only in one of the horizontal direction and the vertical direction.

The 2 nd adjustment structure may be a bellows or another tube structure having a telescopic structure. The principle of the present embodiment is not limited to the specific structure of the 2 nd adjustment structure.

The 2 nd delivery pipe 520B and the 1 st delivery pipe 510B have a mirror image relationship. Thus, the above description about the configuration of the 1 st delivery pipe 510B is referred to the 2 nd delivery pipe 520B.

As shown in fig. 7, the 1 st port wall 213B of the 1 st compressor 210B includes a substantially rectangular parallelepiped fixing base 216 protruding toward the 2 nd compressor 220B. The air compressing device 100B includes a 2 nd fixing member 580. The 2 nd fixing member 580 is disposed on the fixing base 216.

The 2 nd fixing member 580 includes a base end portion 581 and a tip end portion 582. The base end portion 581 is a flat plate. The base end portion 581 is fixed to the fixed base 216 using an appropriate fixing member such as a screw. The tip portion 582 is substantially letter C-shaped. The distal end portion 582 is bent upward from the base end portion 581 of the fixed base 216 and extends toward the 2 nd compressor 220B. The horizontal pipe 513 of the 1 st delivery pipe 510B is held between the tip 582 and the fixed base 216. The fixing technique of fixing the 1 st delivery pipe 510B using the 2 nd fixing member 580 and the fixing base 216 may also be applied to the fixing of the 2 nd delivery pipe 520. The 2 nd fixing member may have another structure or another shape that can connect the horizontal pipe 513 to the 1 st port wall 213B of the 1 st compressor 210B. The principle of the present embodiment is not limited to a specific shape or a specific structure of the 2 nd fixing member.

Fig. 8 is a schematic sectional view of the duct portion 462. Fig. 9 is a schematic perspective view of the air compressor 100B. The cooling device 610 described with reference to fig. 3B is removed from the air compression device 100B shown in fig. 9. The delivery line 500B is further described with reference to fig. 3B, 4, 8, and 9.

As shown in fig. 8, the junction pipe 540B extends from the manifold 531 (see fig. 4) toward the rear mounting wall 460 and passes through the piping section 462. The conduit portion 462 includes an inner conduit portion 463 and an outer conduit portion 464. The inner pipe portion 463 protrudes inward from the holding plate 461 of the rear mounting wall 460. The outer duct portion 464 protrudes outward from the rear mounting wall 460.

As shown in fig. 9, the outer duct section 464 has a substantially rectangular frame structure that is long in the horizontal direction. The outer duct portion 464 includes an upper wall 465, a lower wall 466, a right wall 467, and a left wall 468. The upper wall 465 extends generally horizontally along the rear edge 422 of the top plate 420. The lower wall 466 extends generally horizontally below the upper wall 465. The right wall 467 is disposed upright between the right end of the upper wall 465 and the right end of the lower wall 466. The left wall 468 is vertically disposed between the left end of the upper wall 465 and the left end of the lower wall 466. The junction tube 540B is bent within the outer conduit portion 464 toward the left wall 468.

As shown in fig. 3B, the junction pipe 540B is bent leftward in the outer duct portion 464. The junction tube 540B extends through the left wall 468 and emerges outside of the outer conduit portion 464. The junction pipe 540B is connected to the cooling pipe 611 of the cooling device 610 outside the outer duct portion 464.

< embodiment 4 >

Since the compressor compresses air, the amount of heat generated by the compressor and the compressed air is very large. Therefore, heat removal processing for removing heat from the casing and cooling processing for the compressed air are very important. In embodiment 4, an exemplary heat treatment technique will be described.

As shown in fig. 4, the air compression device 100B includes two fan devices 710, 720 and two cold flow adjustment tanks 730, 740. The front mounting wall 450 of the housing 400B includes a right fan case 455 and a left fan case 456. The fan unit 710 is mounted to the right fan cover 455. The fan unit 720 is mounted to the left fan housing 456. The right fan cover 455 and the left fan cover 456 protrude forward from the holding plate 451 of the front mounting wall 450. The right fan cover 455 and the left fan cover 456 are detachable from the holding plate 451. When the right fan cover 455 is detached from the holding plate 451, the fan device 710 and the cold flow adjustment box 730 can be taken out of the housing 400B. When the left fan cover 456 is removed from the holding plate 451, the fan unit 720 and the cold flow adjustment case 740 can be taken out of the housing 400B.

The fan unit 710 may be an axial fan unit having fan blades. The fan arrangement 710 rotates the fan blades and generates cooling air toward the rear mounting wall 460. Since the 1 st compressor 210B is disposed between the fan unit 710 and the rear mounting wall 460, the 1 st compressor 210B can be appropriately cooled by the cooling air sent from the fan unit 710.

The fan unit 720 may also be an axial fan unit having fan blades. The fan unit 720 rotates the fan blades and generates cooling air toward the rear mounting wall 460. Since the 2 nd compressor 220B is disposed between the fan unit 720 and the rear mounting wall 460, the 2 nd compressor 220B can be appropriately cooled by the cooling air sent from the fan unit 720.

The cold flow adjustment tank 730 is disposed between the fan device 710 and the 1 st compressor 210B. The cold flow adjustment box 730 is used to appropriately adjust the flow field shape of the cooling air from the fan device 710 toward the 1 st compressor 210B.

The cold flow adjustment tank 740 is disposed between the fan unit 720 and the 2 nd compressor 220B. The cold flow adjusting box 740 serves to appropriately adjust the flow field shape of the cooling air from the fan unit 720 toward the 2 nd compressor 220B.

As shown in fig. 3A, a mountain-shaped concave area is formed between the right fan cover 455 and the left fan cover 456. The filter cover 452 described in connection with embodiment 3 is disposed in a mountain-shaped concave area.

Fig. 10A is a schematic perspective view of the cold flow adjustment tank 730. Fig. 10B is a schematic rear view of the cold flow adjustment tank 730. The cold flow adjustment tank 730 will be described with reference to fig. 4 and 8 to 10B. The cold flow adjustment tank 740 described with reference to fig. 4 is identical in construction to the cold flow adjustment tank 730. Thus, the following description relating to the construction of the cold flow adjustment tank 730 is referred to the cold flow adjustment tank 740.

The cold flow adjustment tank 730 includes a 1 st adjustment plate 731, a 2 nd adjustment plate 732, and an outer peripheral plate 733. The 1 st adjustment plate 731 is opposite to the fan unit 710. Adjustment plate 1 731 includes outer edge 734 and inner edge 735. Outer edge 734 forms a generally rectangular profile of 1 st adjustment plate 731. The inner edge 735 forms a generally circular open area. The diameter of the open area formed by inner edge 735 is approximately equal to the diameter of rotation of the fan blades of fan assembly 710. Alternatively, the diameter of the opening region is set to be larger than the rotational diameter of the fan blades. Thus, the cooling air generated by the fan device 710 can efficiently flow into the cold flow adjustment box 730.

The 2 nd adjustment plate 732 is vertically disposed between the 1 st adjustment plate 731 and the 1 st compressor 210B. Adjustment plate 2 includes an outer edge 736 and an inner edge 737. Like outer edge 734 of adjustment plate 1, outer edge 736 of adjustment plate 2 732 forms a generally rectangular profile of adjustment plate 2 732. Like many typical compressors, the 1 st compressor 210B has a generally rectangular cross-sectional profile on a vertical imaginary plane containing the rotational axis of the 1 st compressor 210B. The inner edge 737 of the 2 nd adjustment plate 732 forms a substantially rectangular opening region that is formed to fit the shape and size of the cross-section of the 1 st compressor 210B. The outer peripheral plate 733 is connected to outer edges 734, 736 of the 1 st and 2 nd adjustment plates 731, 732. Therefore, the cooling air flowing into the substantially circular opening region formed by inner edge 735 of 1 st adjustment plate 731 flows out from the substantially rectangular opening region formed by inner edge 737 of 2 nd adjustment plate 732, and efficiently collides with 1 st compressor 210B. Thus, the 1 st compressor 210B is efficiently cooled.

As described above, the cooling air generated by the fan devices 710, 720 is sent out toward the rear mounting wall 460. Thus, the cooling air flows toward the rear mounting wall 460 after depriving heat from the 1 st compressor 210B and the 2 nd compressor 220B. Since the cooling air flows in the casing 400B until after being discharged from the duct portion 462, the cooling air can also effectively cool the compressed air in the delivery pipe 500B that forms a long flow path in the space between the 1 st compressor 210B and the 2 nd compressor 220B.

As described with reference to fig. 8, since the rear mounting wall 460 includes the duct portion 462, the cooling air is collectively discharged to the outside of the housing 400B through the duct portion 462. Since the flow coupling pipe 540B of the delivery pipe 500B passes through the pipe section 462, the compressed air in the flow coupling pipe 540B is also cooled by the cooling air after cooling the 1 st compressor 210B and the 2 nd compressor 220B in the pipe section 462.

As described in connection with embodiment 3, the compressed air flows into the cooling pipe 611 of the cooling device 610. The cooling pipe 611 forms a flow path of the compressed air which meanders and faces downward. That is, the compressed air immediately after flowing into the cooling device 610 flows along the flow path on the upper side. Thereafter, the compressed air flows along the flow path of the lower side.

As shown in fig. 8, the upper flow path formed by the cooling pipe 611 is opposed to the duct part 462. Thus, the compressed air in the flow path on the upper side is cooled by the cooling air blown out from the duct portion 462.

As shown in fig. 9, the air compressor 100B includes 4 external fan devices 750. The 4 outer fan devices 750 are continuously provided in the horizontal direction below the lower wall 466 of the outer duct portion 464.

As shown in fig. 8, the lower flow path formed by the cooling duct 611 is opposite to the outer fan unit 750. Thus, the outer fan device 750 can send out the cooling air toward the cooling pipe 611 forming the lower flow path. As a result, the compressed air flowing along the lower flow path is effectively cooled by the outer fan unit 750.

In the present embodiment, the cold flow adjustment tanks 730 and 740 are used together with the axial flow fan device. Instead, the principle of adjusting the flow field shape of the cold flow adjustment tanks 730 and 740 may be applied to cooling air generated by another fan device such as a centrifugal fan device. The above-described adjustment principle also enables efficient cooling of the compressor when the cooling air flows from the 2 nd adjustment plate 732 to the 1 st adjustment plate 731.

< embodiment 5 >

Various devices are mounted on the lower surface of the vehicle. Thus, the area of the mounting surface for mounting the air compressor is sometimes narrow. In embodiment 5, a design technique for reducing an occupied area of an air compressor in a horizontal direction will be described.

Fig. 11 is a partially assembled view of the air compressor 100B. The air compressor 100B is explained with reference to fig. 11.

The air compression device 100B includes a 1 st driving part 810 and a 2 nd driving part 820. The 1 st drive part 810 and the 2 nd drive part 820 may be general motors. The 1 st driving part 810 generates a driving force for driving the 1 st compressor 210B. The 2 nd driving part 820 generates a driving force for driving the 2 nd compressor 220B. In the present embodiment, the 1 st driving force is exemplified by the driving force generated by the 1 st driving unit 810. The 2 nd driving force is exemplified by the driving force generated by the 2 nd driving part 820.

The 1 st driving part 810 is disposed below the 1 st compressor 210B. The 2 nd driving part 820 is disposed below the 2 nd compressor 220B. Since the group of the 1 st driving part 810 and the 2 nd driving part 820 does not cross the horizontal plane crossing the group of the 1 st compressor 210B and the 2 nd compressor 220B, the designer can set the area of the horizontal section of the casing 400B to a small value.

The air compression device 100B further includes a 1 st transfer part 910 and a 2 nd transfer part 920. The 1 st transfer part 910 is formed beside the 1 st wall 470. The 2 nd transfer portion 920 is formed beside the 2 nd wall 480. The 1 st transmission part 910 is used to transmit the driving force generated by the 1 st driving part 810 to the 1 st compressor 210B. The 2 nd transmission part 920 transmits the driving force generated by the 2 nd driving part 820 to the 2 nd compressor 220B.

The 1 st compressor 210B includes a right shaft part 230 protruding in a direction opposite to the 2 nd compressor 220B. The right shaft portion 230 includes a cylindrical housing 231 and a rotary shaft 232 (see fig. 12). The rotary shaft 232 projects in a direction opposite to a space used by the suction/discharge pipe. The rotary shaft 232 rotates in the cylindrical housing 231. The 1 st transmission unit 910 is connected to the rotary shaft 232 supported by the cylindrical housing 231.

The 2 nd compressor 220B includes a left shaft portion 240 protruding in a direction opposite to the 1 st compressor 210B. The left shaft portion 240 includes a cylindrical case 241 and a rotary shaft (not shown). The rotation shaft rotates in the cylindrical case 241. The 2 nd transmission part 920 is connected to a rotary shaft supported by the cylindrical case 241.

Fig. 12 is a schematic perspective view of the 1 st transmission unit 910. The 1 st transmission unit 910 will be described with reference to fig. 12. The 2 nd transmission unit 920 described with reference to fig. 11 may be the same as the 1 st transmission unit 910 in structure. Therefore, the following description of the structure and operation of the 1 st transmission unit 910 is referred to the 2 nd transmission unit 920.

The 1 st transmission unit 910 includes an upper pulley 911, a lower pulley 912, a tension pulley 913, and an endless belt 914. The upper pulley 911 is attached to the rotary shaft 232 of the right shaft portion 230 of the 1 st compressor 210B. The lower pulley 912 disposed below the upper pulley 911 is attached to the 1 st driving unit 810. The endless belt 914 is wound around an upper pulley 911, a lower pulley 912, and a tension pulley 913. The tension pulley 913 pushes the endless belt 914 out toward the rear mounting wall 460 between the upper pulley 911 and the lower pulley 912, and applies an appropriate tension to the endless belt 914.

When the 1 st drive unit 810 rotates, the endless belt 914 revolves around the upper pulley 911, the lower pulley 912, and the tension pulley 913. As a result, the upper pulley 911 rotates. The rotation shaft 232 is rotated by the rotation of the upper pulley 911. The rotation of the rotary shaft 232 generates the compression operation of the 1 st compressor 210B. As a result, compressed air is generated.

< embodiment 6 >

The configuration of the casing described in relation to embodiment 3 facilitates the repair work of replacing the filter. The housing may have a structure that facilitates the repair and inspection of the driving force transmission mechanism described in connection with embodiment 5. In embodiment 6, a design technique for facilitating the repair and inspection of the driving force transmission mechanism will be described.

Fig. 13 is a partially assembled view of the air compressor 100B. The air compressor apparatus 100B will be described with reference to fig. 3A, 3B, 11, and 13.

The case 400B includes a support frame 490 and a support plate 481. Support frame 490 includes 1 st post 491, 2 nd post 492, 3 rd post 493, 4 th post 494, front cross member 495, and rear cross member 496. The 1 st support 491 extends downward from a corner portion (see fig. 3A) formed by the front edge 421 and the right edge 423 of the top plate 420. The 2 nd strut 492 extends downward from a corner portion (refer to fig. 3A) formed by the rear edge 422 and the right edge 423 of the top plate 420. The 3 rd support column 493 extends downward from a corner portion formed by the front edge 421 (see fig. 3A) and the left edge 424 (see fig. 3B) of the top plate 420. The 4 th pillar 494 extends downward from a corner portion (refer to fig. 3B) formed by the rear edge 422 and the left edge 424 of the top plate 420. Front cross member 495 extends generally horizontally between 1 st post 491 and 3 rd post 493. The rear cross member 496 extends generally horizontally between the 2 nd post 492 and the 4 th post 494. Support plate 481 is supported by front beam 495 and rear beam 496. As a result, the support plate 481 extends between the top plate 420 (see fig. 3A) and the bottom plate 430 (see fig. 3B).

As shown in fig. 3A and 13, the 1 st wall 470 is fixed to the 1 st post 491 and the 2 nd post 492 with screws. Thus, the 1 st wall 470 is easily separated from the support frame 490. As shown in fig. 11, since the 1 st transfer part 910 is formed between the 1 st wall 470 and the 1 st compressor 210B disposed in the vicinity of the 1 st wall 470 with respect to the 2 nd wall 480, the worker can easily access the 1 st transfer part 910 after removing the 1 st wall 470. This allows the operator to easily repair and inspect the 1 st transfer unit 910.

As shown in fig. 3B and 13, wall 2 480 is secured to 3 rd leg 493 and 4 th leg 494 with screws. Thus, the 2 nd wall 480 is easily separated from the support frame 490. As shown in fig. 11, since the 2 nd transfer part 920 is formed between the 2 nd wall 480 and the 2 nd compressor 220B disposed in the vicinity of the 2 nd wall 480 with respect to the 1 st wall 470, the worker can easily access the 2 nd transfer part 920 after removing the 2 nd wall 480. This allows the operator to easily repair and inspect the 2 nd transfer unit 920.

< 7 th embodiment >

The drive unit may be supported by a support member different from the support member supporting the compressor. Instead, the drive unit and the compressor may be mounted on a common support member. In this case, an error related to the relative position between the driving portion and the compressor can be reduced. In embodiment 7, a technique for reducing an error associated with a relative position between a driving portion and a compressor will be described.

As shown in fig. 13, the support plate 481 includes a right support plate 482, a left support plate 483, and a lower support plate 484. The right support plate 482 and the left support plate 483 are placed on the lower support plate 484. Then, right support plate 482 and left support plate 483 are placed on front cross member 495 or rear cross member 496.

Fig. 14 is a schematic perspective view of the lower support plate 484. The support plate 481 is further described with reference to fig. 11, 13, and 14.

The lower support plate 484 includes a lower plate 485, frame ribs 486, grill ribs 487, and 4 ears 488. The lower plate 485 is positioned laterally below the right support plate 482 and the left support plate 483. Frame rib 486 protrudes upward from the outer peripheral edge of the rectangle of lower plate 485. The grill rib 487 is erected in a rectangular space surrounded by the frame rib 486. The right and left support plates 482 and 483 are welded to the upper edges of the grill rib 487 and the upper edge of the frame rib 486. The 4 ears 488 protrude from the frame rib 486 toward the front beam 495 or the rear beam 496, respectively. Since the 4 ears 488 are fixed to the front beam 495 or the rear beam 496, respectively, the lower support plate 484 is properly held by the support frame 490.

As shown in fig. 13 and 14, the lower plate 485 of the right support plate 482, the left support plate 483, and the lower support plate 484 is formed with a plurality of through holes. These through holes are bored after the right support plate 482 and the left support plate 483 are welded to the lower support plate 484. Therefore, the relative relationship of the formation positions of these through holes is substantially equal to the positional relationship formed according to the design drawing. A through hole formed in the right support plate 482 is used for installation of the 1 st compressor 210B. A through hole formed in the left support plate 483 is used for mounting the 2 nd compressor 220B. A through hole formed in the lower plate 485 of the lower support plate 484 is used for installation of the 1 st driving part 810 and the 2 nd driving part 820. In the present embodiment, the upper surface is exemplified by the upper surface of the right support plate 482 and the upper surface of the left support plate 483. The lower surface is exemplified by the lower surface of the lower plate 485 of the lower support plate 484.

The exemplary air compressor described in connection with the various embodiments described above mainly has the following features.

An air compressor device according to an aspect of the above embodiment includes: a 1 st compressor having a 1 st port wall formed with a 1 st inlet port; a 2 nd compressor having a 2 nd port wall formed with a 2 nd intake port; and an intake duct for guiding air to the 1 st and 2 nd intake ports. The 1 st port wall and the 2 nd port wall are disposed opposite to each other. The air inlet conduit is disposed between the 1 st port wall and the 2 nd port wall.

According to the above configuration, since the intake pipe is disposed between the 1 st port wall and the 2 nd port wall, the 1 st compressor and the 2 nd compressor can share the piping space for intake air. Thus, the designer can give the air compressor device a smaller size value.

In the above configuration, the air compressor may further include a delivery line that receives 1 st compressed air generated by compressing the air flowing in through the 1 st intake port by the 1 st compressor from a 1 st delivery port formed in the 1 st port wall, and receives 2 nd compressed air generated by compressing the air flowing in through the 2 nd intake port by the 2 nd compressor from a 2 nd delivery port formed in the 2 nd port wall.

According to the above configuration, since the delivery pipe receives the 1 st compressed air and the 2 nd compressed air from the 1 st delivery port formed in the 1 st port wall and the 2 nd delivery port formed in the 2 nd port wall, respectively, the delivery path is formed between the 1 st port wall and the 2 nd port wall. Since the 1 st compressor and the 2 nd compressor can share the space between the 1 st port wall and the 2 nd port wall for delivery, the designer can give a small size value to the air compression device.

With the above configuration, the delivery line may include a manifold through which the 1 st compressed air and the 2 nd compressed air merge, and a 1 st fixing member for fixing the manifold to at least one of the 1 st compressor and the 2 nd compressor. The 1 st fixation member may also include a 1 st adjustment configuration that enables adjustment of the relative position of the manifold with respect to the 1 st and 2 nd compressors.

According to the above configuration, since the 1 st fixing member includes the 1 st adjustment structure that is capable of adjusting the relative position of the manifold with respect to the 1 st compressor and the 2 nd compressor, it is difficult to apply an excessive load to the delivery path due to an assembly error of the 1 st compressor and the 2 nd compressor.

In the above configuration, the air compressor may further include a 2 nd fixing member for fixing the delivery pipe to the 1 st port wall at a position different from the 1 st intake port.

According to the above configuration, since the 2 nd fixing member fixes the delivery pipe to the 1 st port wall at a position different from the 1 st intake port, it is difficult to apply an excessive load to the delivery pipe.

With the above configuration, the delivery line may include a base end pipe extending from the 1 st delivery port toward the 2 nd port wall, and a bent pipe bent from the base end pipe and configured to guide the 1 st compressed air to the manifold. The bent tube may also include a 2 nd adjustment structure for adjusting a length of a guide section extending from the base end tube toward the manifold.

According to the above configuration, since the bent pipe includes the 2 nd adjustment structure for adjusting the length of the guide section extending from the base end pipe toward the manifold, it is difficult to apply an excessive load to the delivery path due to an assembly error of the 1 st compressor and the 2 nd compressor.

With regard to the above configuration, the air compressing apparatus may further include: a 1 st driving part for generating a 1 st driving force for driving the 1 st compressor; a 1 st transmission unit for transmitting the 1 st driving force to the 1 st compressor; a 2 nd driving part for generating a 2 nd driving force for driving the 2 nd compressor; and a 2 nd transmission part for transmitting the 2 nd driving force to the 2 nd compressor. The housing may also include an outer peripheral wall having a 1 st wall standing beside the 1 st transmitting part and a 2 nd wall standing beside the 2 nd transmitting part.

According to the above configuration, since the 1 st transfer part is disposed beside the 1 st wall and the 2 nd transfer part is disposed upright beside the 2 nd wall, the worker can easily repair and/or inspect the 1 st and 2 nd transfer parts.

With the above configuration, the housing may include a roof panel connected to a vehicle, a floor panel disposed laterally below the roof panel, an outer peripheral wall disposed vertically between the roof panel and the floor panel, and a support plate disposed laterally between the roof panel and the floor panel and supporting the 1 st compressor and the 2 nd compressor. The support plate may also include an upper surface on which the 1 st compressor and the 2 nd compressor are mounted, and a lower surface on which the 1 st driving part and the 2 nd driving part are mounted.

According to the above configuration, since the 1 st compressor and the 2 nd compressor are mounted on the upper surface of the support plate, and the 1 st driving unit and the 2 nd driving unit are mounted on the lower surface of the support plate, the compressors and the driving units are arranged in the vertical direction, and a designer can set the horizontal dimension of the air compressor device to a small value. Further, since the compressor and the driving unit are unitized by the support plate, the transmission unit for transmitting the driving force from the driving unit to the compressor can be easily assembled.

With regard to the above configuration, the air compressing apparatus may further include: a fan device having fan blades that rotate to generate cooling air for cooling the 1 st compressor; and a cold flow adjustment box disposed between the fan device and the 1 st compressor. The cold flow adjustment box may also include a 1 st adjustment plate opposite the fan device and a 2 nd adjustment plate opposite the 1 st compressor. The 1 st adjustment plate may have a circular opening. The 2 nd adjustment plate may have a rectangular opening.

According to the above configuration, since the 1 st adjustment plate is formed with the circular opening portion and the 2 nd adjustment plate is formed with the rectangular opening portion, the 1 st compressor can receive the cooling air as a whole. Since the flow field shape of the cooling air can be appropriately adjusted by the cold flow adjustment box, a designer can give a small dimension value to the distance between the fan device and the 1 st compressor.

With the above structure, the intake pipe may also include: the air inlet pipe comprises an air inlet pipe extending along the 1 st port wall, a connecting pipe and an adjusting sealing piece, wherein the connecting pipe is provided with a 1 st end connected with the air inlet pipe and a 2 nd end connected with the 1 st air inlet, and the adjusting sealing piece is used for sealing the air inlet pipe and the 1 st end.

According to the above configuration, since the 1 st end of the connecting pipe is connected to the intake duct via the adjustment seal, an error in the relative position between the 1 st compressor and the intake duct is absorbed by the adjustment seal. Thus, the intake pipe is less likely to be subjected to an excessive load caused by assembly errors of the 1 st compressor and/or the intake pipe.

Industrial applicability

The principles of the above-described embodiments are suitably applied to a wide variety of technical fields requiring compressed air.

Claims (6)

1. An air compression device for use in a vehicle, wherein,

the method comprises the following steps:

a 1 st compressor having a 1 st port wall formed with a 1 st intake port for compressing air flowing in from the 1 st intake port;

a 2 nd compressor having a 2 nd port wall formed with a 2 nd intake port for compressing air flowing in from the 2 nd intake port;

a housing that houses the 1 st compressor and the 2 nd compressor and is connected to a lower surface of a vehicle; and

an intake duct for guiding air from outside the housing to the 1 st and 2 nd intake ports,

said 1 st port wall and said 2 nd port wall being disposed opposite each other,

said air inlet conduit being disposed between said 1 st port wall and said 2 nd port wall,

a 1 st compressed air discharge port for discharging 1 st compressed air generated by compressing the air flowing in through the 1 st air intake port by the 1 st compressor is further formed in the 1 st port wall, and a 2 nd compressed air discharge port for discharging 2 nd compressed air generated by compressing the air flowing in through the 2 nd air intake port by the 2 nd compressor is further formed in the 2 nd port wall,

the air compression device includes: a delivery pipe line that receives the 1 st compressed air delivered from the 1 st delivery port and the 2 nd compressed air delivered from the 2 nd delivery port and delivers the 1 st compressed air and the 2 nd compressed air to the outside of the housing;

a 1 st driving part for generating a 1 st driving force for driving the 1 st compressor;

a 1 st transmission unit for transmitting the 1 st driving force to the 1 st compressor;

a 2 nd driving part for generating a 2 nd driving force for driving the 2 nd compressor; and

a 2 nd transmission part for transmitting the 2 nd driving force to the 2 nd compressor,

the housing includes a roof panel connected to a vehicle, a floor panel disposed transversely below the roof panel, a peripheral wall disposed upright between the roof panel and the floor panel, and a support plate disposed transversely between the roof panel and the floor panel and supporting the 1 st compressor and the 2 nd compressor,

the support plate includes an upper surface on which the 1 st compressor and the 2 nd compressor are mounted and a lower surface on which the 1 st driving part and the 2 nd driving part are mounted,

the outer peripheral wall has a 1 st wall and a 2 nd wall at positions opposed to each other, the 1 st transmitting portion is disposed beside the 1 st wall, and the 2 nd transmitting portion is disposed beside the 2 nd wall.

2. The air compression device of claim 1,

the delivery pipe includes a manifold into which the 1 st compressed air and the 2 nd compressed air merge and a 1 st fixing member for fixing the manifold to at least one of the 1 st compressor and the 2 nd compressor,

the 1 st fixation member includes a 1 st adjustment configuration that enables adjustment of a relative position of the manifold with respect to the 1 st and 2 nd compressors.

3. The air compression device of claim 2,

and the device also comprises a 2 nd fixing component for fixing the sending pipeline on the 1 st inlet wall at a position different from the 1 st inlet.

4. The air compressing device according to claim 2 or 3,

the delivery piping includes a base end pipe projecting from the 1 st delivery port toward the 2 nd port wall and a bent pipe bent from the base end pipe and adapted to guide the 1 st compressed air toward the manifold,

the bent tube includes a 2 nd adjustment structure for adjusting a length of a guide section extending from the base end tube toward the manifold.

5. The air compression device of claim 1,

further comprising:

a fan device having fan blades that rotate to generate cooling air for cooling the 1 st compressor; and

a cold flow adjustment tank disposed between the fan device and the 1 st compressor,

the cold flow adjustment box comprises a 1 st adjustment plate opposite to the fan device and a 2 nd adjustment plate opposite to the 1 st compressor,

the 1 st adjusting plate is formed with a circular opening,

the 2 nd adjustment plate has a rectangular opening.

6. The air compressing device according to any one of claims 1 to 3,

the intake pipe includes: the air inlet pipe comprises an air inlet pipe extending along the 1 st port wall, a connecting pipe and an adjusting sealing piece, wherein the connecting pipe is provided with a 1 st end connected with the air inlet pipe and a 2 nd end connected with the 1 st air inlet, and the adjusting sealing piece is used for sealing the air inlet pipe and the 1 st end.

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