CN115076236B - External sealed compressor gas pipeline gap adjusting mechanism - Google Patents

External sealed compressor gas pipeline gap adjusting mechanism Download PDF

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Publication number
CN115076236B
CN115076236B CN202210771190.1A CN202210771190A CN115076236B CN 115076236 B CN115076236 B CN 115076236B CN 202210771190 A CN202210771190 A CN 202210771190A CN 115076236 B CN115076236 B CN 115076236B
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CN
China
Prior art keywords
bearing seat
air
side wall
sealing cover
air bearing
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CN202210771190.1A
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Chinese (zh)
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CN115076236A (en
Inventor
殷洪勇
伏经宇
李法威
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Oster Power Technology Jiangsu Co ltd
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Oster Power Technology Jiangsu Co ltd
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Priority to CN202210771190.1A priority Critical patent/CN115076236B/en
Publication of CN115076236A publication Critical patent/CN115076236A/en
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Publication of CN115076236B publication Critical patent/CN115076236B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00Bearings not otherwise provided for
    • F16C32/06Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0662Details of hydrostatic bearings independent of fluid supply or direction of load
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00Cooling of bearings
    • F16C37/002Cooling of bearings of fluid bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/021Sealings between relatively-stationary surfaces with elastic packing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/06Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems

Abstract

The utility model relates to the technical field of compressors, and provides an external sealed compressor gas pipeline gap adjusting mechanism, which comprises an adjusting pipe, blades arranged in the adjusting pipe, an actuator connected with each blade through a synchronous transmission structure to drive the blades to rotate, and a sealing structure, and is characterized in that: the sealing structure comprises a sealing cover and an air bearing seat; the sealing cover surrounds and is fixed outside the adjusting pipe and seals the synchronous transmission structure and the rotating shaft in the cover body; the actuator is arranged outside the sealing cover, the air bearing seat is arranged on the sealing cover, the connecting shaft of the actuator penetrates through the air bearing seat and then stretches into the sealing cover to be connected with the synchronous transmission structure, the inner sleeve is arranged in the air bearing seat, and the sealing ring matched with the inner side wall of the air bearing seat is embedded in the outer side wall of the inner sleeve. The utility model overcomes the defects of the prior art and solves the technical problems of poor stability and higher maintenance frequency of the existing compressor inlet gap adjusting mechanism.

Description

External sealed compressor gas pipeline gap adjusting mechanism
Technical Field
The utility model relates to the technical field of compressors, in particular to an external sealed compressor gas pipeline gap adjusting mechanism.
Background
The utility model patent application No. CN202121397360.1 discloses a gap adjusting mechanism for an inlet of a compressor, a gap exists between a transmission shaft and a contact part of an adjusting pipe, when the mechanism is applied to compressors for special process systems, for example, mediums in the process systems of the compressors contain toxic and harmful gas components, the mediums leak out through the gap, and if the mediums leak out to the atmosphere, the mediums cause process gas pollution and harm the health of field personnel, so the utility model patent application No. 202121733890.9 provides a sealing cover, and the sealing cover is additionally arranged outside the gap adjusting mechanism for the inlet of the compressor, so that the leakage of the harmful gas is effectively prevented.
However, in the practical application process, we find that the mechanism has poor stability and higher maintenance frequency, and mainly has the following technical problems: the executor operation of adjustment mechanism generates heat, through sealed installation back of sealed cowling, and the heat is difficult for giving off, on the one hand, has the potential safety hazard, and on the other hand leads to the connecting axle of executor to take place the thermal deformation more easily, and simultaneously, connecting axle and bearing cooperation precision are high, and unilateral clearance is only 1 silk, and the connecting axle is easy to block after the thermal deformation.
Therefore, we propose an external sealed compressor gas pipeline gap adjusting mechanism.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides an external sealed compressor gas pipeline gap adjusting mechanism, which overcomes the defects of the prior art, has reasonable design and solves the technical problems of poor stability and higher maintenance frequency of the existing compressor inlet gap adjusting mechanism.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides an external sealed compressor gas line clearance adjustment mechanism, includes the governing pipe, rotates a plurality of blades of installing in the governing pipe, the synchronous drive structure who is connected with each pivot through the pivot, is connected with synchronous drive structure and is used for driving pivot pivoted executor, is used for preventing the seal structure of gas leakage, its characterized in that:
the sealing structure comprises a sealing cover and an air bearing seat;
the sealing cover surrounds and is fixed outside the adjusting pipe and seals the synchronous transmission structure and the rotating shaft in the cover body;
the actuator is arranged outside the sealing cover, the air bearing seat is arranged on the sealing cover, a connecting shaft of the actuator penetrates through the air bearing seat and then stretches into the sealing cover to be connected with the synchronous transmission structure, an inner sleeve is arranged in the air bearing seat, and a sealing ring matched with the inner side wall of the air bearing seat is embedded in the outer side wall of the inner sleeve;
the air bearing seat is provided with an air inlet, the inner sleeve is provided with a first air guide groove encircling the outer side wall and a first radial air hole communicated with the first air guide groove and penetrating through the inner side wall, the connecting shaft is provided with a second air guide groove encircling the outer side wall, second radial air holes penetrating through two ends of the second air guide groove in the radial direction, third radial air holes which are respectively arranged on the upper side and the lower side of the second radial air holes and penetrate through the outer side wall in the radial direction, and axial air holes which extend in the axial direction and are communicated with the second air guide groove and the third radial air holes.
Further, the air inlet is connected with an air supply unit through a pipeline, and the air supply unit is used for providing inert gas.
Further, the third radial air holes on the same side are all provided with two channels and are arranged in a cross shape.
Furthermore, the sealing ring is provided with two sealing rings and is distributed on the upper side and the lower side of the first air guide groove.
Further, the synchronous transmission structure comprises a shifting fork, a shifting rod and a synchronizing ring, the end parts of the rotating shafts extending out of the adjusting pipes are connected with the shifting fork, the shifting fork is provided with adjusting grooves arranged along the length direction, the shifting rods and the shifting fork are in one-to-one correspondence and are vertically arranged on the synchronizing ring, the end parts of the shifting rods extend into the adjusting grooves, the synchronizing ring is sleeved outside the adjusting pipes and can rotate around the adjusting pipes, and the adjusting pipes are provided with limiting structures for limiting the axial positions of the synchronizing ring so as to prevent the shifting rods from being separated from the adjusting grooves.
Still further, stop gear includes spacing groove and bearing, and annular spacing groove is seted up in the lateral wall of regulation pipe and is set up with the synchronizer ring is coaxial, and more than three the bearing is installed on the synchronizer ring and is encircleed the regulation pipe equipartition, the bearing stretches into in the spacing groove.
Furthermore, a ball head is arranged on the deflector rod, and the ball head is contacted with the inner side wall of the adjusting groove.
(III) beneficial effects
The utility model provides an externally-arranged sealed compressor gas pipeline gap adjusting mechanism, which has the following beneficial effects:
1. the actuator of the adjusting mechanism is arranged outside the sealing cover, so that heat generated by operation of the actuator is easier to dissipate, the influence on the connecting shaft is reduced, and the potential safety hazard is reduced;
2. inert gas passes through an air inlet hole of an air bearing seat, a first air guide groove and a first radial air hole of an inner sleeve, a second air guide groove, a second radial air hole, an axial air hole and a third radial air hole of a connecting shaft and then forms an air film between the inner sleeve and the connecting shaft, on one hand, the connecting shaft is lubricated, friction is reduced, on the other hand, heat in the connecting shaft is taken away by the gas, thermal deformation of the connecting shaft is greatly reduced, and the connecting shaft is prevented from being blocked;
3. the inner sleeve is arranged, a sealing ring is arranged between the inner sleeve and the air bearing seat, and the deformation of the connecting shaft is absorbed through the sealing ring, so that the connecting shaft is further prevented from being blocked; meanwhile, the connecting shaft is prevented from directly contacting the sealing ring, so that abrasion of the sealing ring is reduced, and the service life of the sealing ring is effectively prolonged.
In conclusion, after the external sealed compressor gas pipeline gap adjusting mechanism is improved, the mechanism stability is effectively improved and the maintenance frequency is greatly reduced on the basis of ensuring the original sealing effect and preventing gas medium leakage.
Drawings
FIG. 1 is a schematic view of a first view angle structure of the present utility model;
FIG. 2 is a schematic view of a second view of the present utility model, wherein the side panels of the seal housing are not shown;
FIG. 3 is a schematic view of the structure of FIG. 2 with a partial enlargement at A;
FIG. 4 is a schematic cross-sectional view of the present utility model;
FIG. 5 is a schematic view of the structure of FIG. 4 with a partial enlargement at B;
fig. 6 is a schematic diagram of the structure of fig. 4 at C with a partial enlargement.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 6, an external sealed compressor gas pipeline gap adjusting mechanism comprises an adjusting pipe 2, a plurality of blades 16 rotatably installed in the adjusting pipe 2 through rotating shafts 11 (the blades 16 are distributed around the circumferential direction of the inner side wall of the adjusting pipe 2), synchronous transmission structures connected with the rotating shafts 11, an actuator 1 connected with the synchronous transmission structures and used for driving the rotating shafts 11 to rotate, and a sealing structure used for preventing gas leakage;
the sealing structure comprises a sealing cover 3 and an air bearing seat 7;
the sealing cover 3 surrounds and is fixed outside the adjusting pipe 2 and seals the synchronous transmission structure and the rotating shaft 11 in the cover body, the sealing cover 3 comprises a first end plate 5, a second end plate 6 and a side plate 4, the first end plate 5 and the second end plate 6 are arranged in parallel and fixedly connected with the adjusting pipe 2, the side plate 4 is in sealing connection with the first end plate 5 and the second end plate 6, the sealing cover 3 is preferably of an annular structure, in the figure, 8 is an annular connecting plate, the annular connecting plate 8 is welded and fixed with the side plate 4, is locked with the first end plate 5 through bolts and is additionally provided with a first sealing ring;
the actuator 1 is arranged outside the sealed cover 3, the air bearing seat 7 is arranged on the sealed cover 3, the connecting shaft 17 of the actuator 1 penetrates through the air bearing seat 7 and then stretches into the sealed cover 3 to be connected with a synchronous transmission structure, the air bearing seat 7 is internally provided with an inner sleeve 18, the outer side wall of the inner sleeve 18 is embedded with a second sealing ring 19 attached to the inner side wall of the air bearing seat 7, and the second sealing ring 19 is provided with two sealing rings and is distributed on the upper side and the lower side of the first air guide groove 18 a.
The air bearing seat 7 is provided with an air inlet hole 7a, the air inlet hole 7a is connected with an air supply unit (not shown in the figure) through a pipeline, the air supply unit is used for supplying inert gas, such as nitrogen and argon, the inner sleeve 18 is provided with a first air guide groove 18a encircling the outer side wall, a first radial air hole communicated with the first air guide groove 18a and penetrating through the inner side wall, the connecting shaft 17 is provided with a second air guide groove 17a encircling the outer side wall, second radial air holes 17b penetrating through two ends of the second air guide groove 17a in the radial direction, third radial air holes 17c which are respectively arranged on the upper side and the lower side of the second radial air holes 17b and penetrate through the outer side wall in the radial direction, and axial air holes 17d which extend in the axial direction and are communicated with the second air guide groove 17a and the third radial air holes 17c, the lower end of the axial air holes 17d are not penetrated, the upper end is encapsulated through a plug, and the third radial air holes on the same side are provided with two channels and are in a cross shape.
The synchronous transmission structure comprises a shifting fork, a shifting rod 13 and a synchronizing ring 14, wherein the end parts of the rotating shafts 11 extending out of the adjusting pipe 2 are respectively connected with the shifting fork, each shifting fork comprises a first shifting fork 9-1 and a second shifting fork 9-2, each of the first shifting fork 9-1 and the second shifting fork 9-2 is provided with an adjusting groove 9a arranged along the length direction, the first shifting fork 9-1 is directly connected with the connecting shaft 17, the adjusting grooves 9a are annular closed through grooves, the shifting rod 13 is prevented from being separated, the adjusting grooves of the second shifting fork 9-2 are U-shaped through grooves with one end open, the shifting rod 13 corresponds to the shifting fork one by one and are vertically arranged on the synchronizing ring 14, the end parts of the shifting rod 13 extend into the adjusting grooves 9a, the synchronizing ring 14 is sleeved outside the adjusting pipe 2 and can rotate around the adjusting pipe 2, and a limiting structure for limiting the axial position of the synchronizing ring 14 so as to prevent the shifting rod 13 from separating from the adjusting grooves 9a is arranged on the adjusting pipe 2. The limiting mechanism comprises limiting grooves and bearings 15, wherein the annular limiting grooves are formed in the outer side wall of the adjusting pipe 2 and are coaxially arranged with the synchronizing ring 14, more than three bearings 15 are mounted on the synchronizing ring 14 and uniformly distributed around the adjusting pipe 2, and the bearings 15 extend into the limiting grooves. The shift lever is provided with a ball head 12, and preferably, the ball head 12 is in rotary fit with the shift lever and is contacted with the inner side wall of the adjusting groove. The utility model patent application with the application number of CN202121397360.1 adopts a connecting rod in a synchronous transmission structure, and a certain probability of blocking exists due to dead points, so that the connecting rod is broken once being forced to be driven after blocking, and the technical problem of higher maintenance frequency is also caused. In the utility model, the shifting fork and the shifting lever replace the connecting rod and the rotating shaft, and as the shifting lever can move in the adjusting groove of the shifting fork, the blocking can be effectively avoided, in addition, the first shifting fork 9-1 is matched with the corresponding shifting lever to drive the synchronizing ring 14 to rotate, and the synchronizing ring 14 rotates to drive the other shifting levers and the second shifting fork 9-2 to synchronously rotate, so that the synchronism is better, and the blocking can also be effectively avoided.
In the figure, 10 is the stiffening ring, the stiffening ring 10 cover is located outside the regulation pipe 2 and with regulation pipe 2 fixed connection, be connected with on the stiffening ring 10 with the locating sleeve 22 of pivot 11 one-to-one, the upper end of pivot 11 passes regulation pipe 2, connect the shift fork behind the locating sleeve 22, on the one hand, the accessible locating sleeve 22 is fixed a position the position mounted position of shift fork, on the other hand, the lateral wall of locating sleeve 22 can pass through threaded connection with stiffening ring 10, install the third sealing washer between the inside wall of locating sleeve 22 and the pivot 11, the clearance between pivot 11 and the regulation pipe 2 is sealed to the locating sleeve 22 bottom, in order to further prevent gas leakage. The fork comprises a connecting part 9b connected with the rotating shaft 11 and an adjusting main body 9c provided with an adjusting groove, and a limit screw 23 is connected to the connecting part 9b in a threaded manner.
In the figure, 20 is the connecting seat, is equipped with connecting seat 20 between air bearing seat 7 and the regulation pipe 2, and connecting seat 20 is used for the outer lateral wall radian of the regulation pipe 2 of adaptation, can add between air bearing seat 7 and the connecting seat 20 and be equipped with fourth sealing washer 21.
It should be noted that, the above embodiments are only used to illustrate the technical solution of the present utility model, and not to limit the technical solution; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (7)

1. The utility model provides an external sealed compressor gas line clearance adjustment mechanism, includes the governing pipe, rotates a plurality of blades of installing in the governing pipe, the synchronous drive structure who is connected with each pivot through the pivot, is connected with synchronous drive structure and is used for driving pivot pivoted executor, is used for preventing the seal structure of gas leakage, its characterized in that:
the sealing structure comprises a sealing cover and an air bearing seat;
the sealing cover surrounds and is fixed outside the adjusting pipe and seals the synchronous transmission structure and the rotating shaft in the self cover body of the sealing cover;
the actuator is arranged outside the sealing cover, the air bearing seat is arranged on the sealing cover, a connecting shaft of the actuator penetrates through the air bearing seat and then stretches into the sealing cover to be connected with the synchronous transmission structure, an inner sleeve is arranged in the air bearing seat, and a sealing ring matched with the inner side wall of the air bearing seat is embedded in the outer side wall of the inner sleeve;
the air bearing seat is provided with an air inlet, the inner sleeve is provided with a first air guide groove encircling the outer side wall and a first radial air hole communicated with the first air guide groove and penetrating through the inner side wall, the connecting shaft is provided with a second air guide groove encircling the outer side wall, second radial air holes penetrating through two ends of the second air guide groove in the radial direction, third radial air holes which are respectively arranged on the upper side and the lower side of the second radial air holes and penetrate through the outer side wall in the radial direction, and axial air holes which extend in the axial direction and are communicated with the second air guide groove and the third radial air holes.
2. An externally sealed compressor gas line clearance adjustment mechanism according to claim 1, wherein: the air inlet is connected with the air supply unit through a pipeline.
3. An externally sealed compressor gas line clearance adjustment mechanism according to claim 1, wherein: the third radial air holes on the same side are all provided with two channels and are arranged in a cross shape.
4. An externally sealed compressor gas line clearance adjustment mechanism according to claim 1, wherein: the sealing ring is provided with two channels and is distributed on the upper side and the lower side of the first air guide groove.
5. An externally sealed compressor gas line clearance adjustment mechanism according to claim 1, wherein: the synchronous transmission structure comprises a shifting fork, a shifting rod and a synchronizing ring, wherein the shifting fork is connected to the end part of each rotating shaft extending out of the adjusting pipe, adjusting grooves are formed in the shifting fork and are arranged along the length direction, the shifting rods are in one-to-one correspondence with the shifting fork and are vertically arranged on the synchronizing ring, the end parts of the shifting rods extend into the adjusting grooves, the synchronizing ring is sleeved outside the adjusting pipe and can rotate around the adjusting pipe, and a limiting structure for limiting the axial positions of the synchronizing ring to prevent the shifting rods from being separated from the adjusting grooves is arranged on the adjusting pipe.
6. An externally sealed compressor gas line clearance adjustment mechanism according to claim 5 and wherein: the limiting structure comprises limiting grooves and bearings, wherein the annular limiting grooves are formed in the outer side wall of the adjusting pipe and are coaxially arranged with the synchronizing ring, more than three bearings are arranged on the synchronizing ring and uniformly distributed around the adjusting pipe, and the bearings extend into the limiting grooves.
7. An externally sealed compressor gas line clearance adjustment mechanism according to claim 5 and wherein: and the deflector rod is provided with a ball head which is contacted with the inner side wall of the adjusting groove.
CN202210771190.1A 2022-06-30 2022-06-30 External sealed compressor gas pipeline gap adjusting mechanism Active CN115076236B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210771190.1A CN115076236B (en) 2022-06-30 2022-06-30 External sealed compressor gas pipeline gap adjusting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210771190.1A CN115076236B (en) 2022-06-30 2022-06-30 External sealed compressor gas pipeline gap adjusting mechanism

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CN115076236B true CN115076236B (en) 2023-10-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108223454A (en) * 2018-03-01 2018-06-29 福建雪人股份有限公司 A kind of guide vane regulating mechanism of centrifugal compressor
CN214887557U (en) * 2021-06-22 2021-11-26 欧司特动力技术(江苏)有限公司 Inlet clearance adjusting mechanism of compressor
CN215335169U (en) * 2021-07-28 2021-12-28 欧司特动力技术(江苏)有限公司 IGV circuit sealing cover for compressor gas pipeline
CN216044619U (en) * 2021-09-15 2022-03-15 江苏章鼓力魄锐动力科技有限公司 Sealed air inlet guide device for air blower

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003269329A (en) * 2002-03-15 2003-09-25 Sanden Corp Compressor for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108223454A (en) * 2018-03-01 2018-06-29 福建雪人股份有限公司 A kind of guide vane regulating mechanism of centrifugal compressor
CN214887557U (en) * 2021-06-22 2021-11-26 欧司特动力技术(江苏)有限公司 Inlet clearance adjusting mechanism of compressor
CN215335169U (en) * 2021-07-28 2021-12-28 欧司特动力技术(江苏)有限公司 IGV circuit sealing cover for compressor gas pipeline
CN216044619U (en) * 2021-09-15 2022-03-15 江苏章鼓力魄锐动力科技有限公司 Sealed air inlet guide device for air blower

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