CN114810624A - Bilateral two-stage internal circulation high-speed centrifugal air compressor - Google Patents

Bilateral two-stage internal circulation high-speed centrifugal air compressor Download PDF

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Publication number
CN114810624A
CN114810624A CN202210476974.1A CN202210476974A CN114810624A CN 114810624 A CN114810624 A CN 114810624A CN 202210476974 A CN202210476974 A CN 202210476974A CN 114810624 A CN114810624 A CN 114810624A
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CN
China
Prior art keywords
level
main shaft
volute
air
diffuser
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Pending
Application number
CN202210476974.1A
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Chinese (zh)
Inventor
邢子义
王升科
谢元豪
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Yantai Dongde Industrial Co Ltd
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Yantai Dongde Industrial Co Ltd
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Priority to CN202210476974.1A priority Critical patent/CN114810624A/en
Publication of CN114810624A publication Critical patent/CN114810624A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/051—Axial thrust balancing
    • F04D29/0513—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/0563—Bearings cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/057—Bearings hydrostatic; hydrodynamic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F04D29/286—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors multi-stage rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model provides a two side two-stage inner loop high speed centrifugal air compressor, including motor casing, stator and main shaft, motor casing both ends inboard installs the one-level bearing frame and the second grade bearing frame that are used for supporting the main shaft respectively, one-level diffuser and second grade diffuser are installed respectively to the motor casing both ends outside, one-level diffuser is worn out to main shaft one end and is installed one-level compression device, the main shaft other end is worn out the second grade diffuser and is installed second grade compression device, one-level compression device and second grade compression device are linked together through establishing the gas transmission passageway inside motor casing. The original connecting pipe is omitted, the size is reduced, the weight of the whole machine is reduced, and the light weight concept requirement of the new energy automobile is met; the air pressurized by the primary compression device directly enters the secondary compression device through the primary air outlet bend, the air transmission channel and the secondary air inlet bend, the transmission distance is short, the energy loss in the transmission process is reduced, and the compression power is improved; the cooling effect is good, a virtuous cycle is formed, and the conditions of over-temperature, alarming, shutdown and the like are avoided.

Description

Bilateral two-stage internal circulation high-speed centrifugal air compressor
The technical field is as follows:
the invention relates to a bilateral two-stage internal circulation high-speed centrifugal air compressor.
Background art:
at present, the development of new energy fuel cell automobiles is considered as an important link of traffic energy power conversion, in order to ensure the normal work of a fuel cell engine, the engine generally needs auxiliary systems such as a hydrogen supply subsystem, an air supply subsystem and a circulating water cooling management subsystem, and a large number of researches show that the high-pressure and large-flow air supply has an obvious effect of improving the power output of the existing fuel cell engine. Therefore, before air enters the engine, the air intake is pressurized, and a centrifugal air compressor is an energy conversion device for achieving the aim, and is one of important parts of an air supply system of a fuel cell engine.
At present high-speed centrifugal air compressor, if publication number is CN112879318A, the name is a high-speed centrifugal compressor's patent application, its structure mainly includes casing, stator and main shaft, the inboard one-level bearing frame and the second grade bearing frame that is used for supporting the main shaft of installing respectively in casing both ends, one-level diffuser and second grade diffuser are installed respectively to the casing both ends outside, one-level worm wheel and second grade worm wheel are installed respectively to the one-level diffuser and second grade diffuser are worn out at the main shaft both ends, one-level spiral case and second grade worm wheel externally-mounted have one-level spiral case and second grade spiral case, link to each other through the connecting pipe between one-level spiral case and the second grade spiral case, the cover is equipped with the thrust disc on the main shaft between one-level diffuser and the one-level bearing frame, the thrust disc both sides are equipped with a thrust air bearing respectively, be equipped with radial air bearing between one-level bearing frame and second grade bearing frame and the main shaft respectively. The high-speed centrifugal compressor with the structure mainly has the following defects:
(1) the two-stage compression devices are respectively arranged at two ends of the motor and are connected in series through an external connecting pipe, air is compressed in the first-stage compression device, then enters the second-stage compression device through the connecting pipe and finally is discharged into the fuel cell system, the connecting pipe is thick and heavy, a large space is additionally occupied, meanwhile, the weight of the whole machine is increased, and the requirement of the new energy automobile on the idea of light weight is not met;
(2) because the connecting pipe is long, the air inevitably causes extra energy loss in the process of entering the secondary compression device from the primary compression device, and the compression power is reduced;
(3) make air temperature rise after the compression of one-level compressor arrangement, mainly cool down the air by the connecting pipe now, then get into second grade compressor arrangement, but the connecting pipe cooling effect is poor, leads to getting into second grade compressor arrangement's air temperature and constantly rising, forms vicious circle, through a period of operation, the easy condition such as overheat, warning, shut down appears.
In conclusion, the above-mentioned structural problems in the field of high-speed centrifugal air compressors have become a technical problem to be solved urgently in the industry.
The invention content is as follows:
in order to make up for the defects of the prior art, the invention provides a bilateral two-stage internal circulation high-speed centrifugal air compressor, which solves the problems of thick and heavy connecting pipes, occupied space and increased weight in the prior art, and solves the problems of energy loss and reduced compression power caused by longer connecting pipes in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a two side two-stage inner loop high speed centrifugal air compressor, including motor casing, stator and main shaft, motor casing both ends inboard installs the one-level bearing frame and the second grade bearing frame that are used for supporting the main shaft respectively, one-level diffuser and second grade diffuser are installed respectively to the motor casing both ends outside, one-level diffuser is worn out to main shaft one end and is installed one-level compression device, the main shaft other end is worn out the second grade diffuser and is installed second grade compression device, one-level compression device and second grade compression device are linked together through establishing the gas transmission passageway inside motor casing.
The one-level compression device comprises a one-level worm wheel arranged on the main shaft, a one-level volute connected with the motor shell is arranged on the outer side of the one-level worm wheel, a one-level air inlet is formed in the one-level volute, a one-level air inlet cavity is formed in the one-level volute, a one-level air outlet bend communicated with the one-level air inlet cavity is further formed in the one-level volute, and the one-level air outlet bend is communicated with the air conveying channel.
The secondary compression device comprises a secondary worm wheel arranged on the main shaft, a secondary volute connected with the motor shell is arranged on the outer side of the secondary worm wheel, a secondary air outlet is formed in the secondary volute, a secondary air inlet cavity and a secondary volute which are communicated are formed in the secondary volute, the secondary volute is communicated with the secondary air outlet, the secondary air inlet cavity is communicated with a secondary air inlet bend formed in the secondary volute, and the secondary air inlet bend is communicated with the air conveying channel.
An intermediate cooling water channel is arranged between the secondary air inlet bend and the secondary volute in the secondary volute, and a water inlet and a water outlet which are communicated with the intermediate cooling water channel are arranged on the secondary volute.
And a thrust disc is arranged on the main shaft between the first-stage diffuser and the first-stage bearing seat, and two thrust air bearings are respectively arranged on two sides of the thrust disc.
Radial air bearings are respectively arranged between the primary bearing seat and the main shaft and between the secondary bearing seat and the main shaft.
And a motor cooling water channel is arranged in the motor shell.
By adopting the scheme, the invention has the following advantages:
(1) the primary compression device and the secondary compression device are arranged at two ends of the motor and are communicated and connected in series through an internal gas transmission channel, air is compressed in the primary compression device, then directly enters the secondary compression device from the inside and is finally discharged into a fuel cell system, and a conventional connecting pipe is omitted, so that the size is reduced, the weight of the whole machine is reduced, and the light-weighted ideal requirement of a new energy automobile is met;
(2) the air pressurized by the primary compression device directly enters the secondary compression device through the primary air outlet bend, the air transmission channel and the secondary air inlet bend, the transmission distance is short, the energy loss in the transmission process is reduced, and the compression power is improved;
(3) the motor cooling water channel in the motor shell can cool the motor and can cool air in the gas transmission channel for one time, the middle cooling water channel which is arranged in the secondary volute and is positioned between the secondary gas inlet bend and the secondary volute can cool air exhausted by the secondary compression device for a second time, the cooling effect is good, virtuous cycle is formed, the conditions of over-temperature, alarming, stopping and the like are avoided, and the normal work of a fuel cell system is ensured.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a motor shell, 2, a stator, 3, a main shaft, 4, a first-stage bearing seat, 5, a second-stage bearing seat, 6, a first-stage diffuser, 7, a second-stage diffuser, 8, a gas transmission channel, 9, a first-stage worm gear, 10, a first-stage volute, 11, a first-stage gas inlet, 12, a first-stage gas inlet cavity, 13, a first-stage gas outlet bend, 14, a second-stage worm gear, 15, a second-stage volute, 16, a second-stage gas outlet, 17, a second-stage gas inlet cavity, 18, a second-stage worm channel, 19, a second-stage gas inlet bend, 20, an intermediate cooling water channel, 21, a thrust disk, 22, a thrust air bearing, 23, a radial air bearing, 24 and a motor cooling water channel.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1, a bilateral two-stage internal circulation high-speed centrifugal air compressor, including motor casing 1, stator 2 and main shaft 3, motor casing 1 both ends inboard is installed respectively and is used for supporting first-order bearing frame 4 and the second-order bearing frame 5 of main shaft 3, motor casing 1 both ends outside is installed first-order diffuser 6 and second-order diffuser 7 respectively, 3 one end of main shaft is worn out first-order diffuser 6 and is installed one-order compressor arrangement, 3 other ends of main shaft are worn out second-order diffuser 7 and are installed two-order compressor arrangement, first-order compressor arrangement and second-order compressor arrangement are linked together through establishing at the inside gas transmission passageway 8 of motor casing 1, the air is after the compression in one-order compressor arrangement, directly get into second-order compressor arrangement in inside, discharge into fuel cell system at last, the connecting pipe in the past has been cancelled, the volume is reduced, whole machine weight has been lightened.
The one-level compression device comprises a one-level worm wheel 9 installed on the main shaft 3, a one-level volute 10 connected with the motor shell 1 is arranged on the outer side of the one-level worm wheel 9, a one-level air inlet 11 is formed in the one-level volute 10, a one-level air inlet cavity 12 is formed in the one-level volute 10, a one-level air outlet bend 13 communicated with the one-level air inlet cavity 12 is further formed in the one-level volute 10, and the one-level air outlet bend 13 is communicated with the air transmission channel 8.
The secondary compression device comprises a secondary worm wheel 14 arranged on the main shaft 3, a secondary volute 15 connected with the motor shell 1 is arranged on the outer side of the secondary worm wheel 14, a secondary air outlet 16 is arranged on the secondary volute 15, a secondary air inlet cavity 17 and a secondary volute 18 which are communicated are arranged in the secondary volute 15, the secondary volute 18 is communicated with the secondary air outlet 16, the secondary air inlet cavity 17 is communicated with a secondary air inlet bend 19 arranged in the secondary volute 15, and the secondary air inlet bend 19 is communicated with the air transmission channel 8.
An intermediate cooling water channel 20 is arranged between the secondary air inlet bend 19 and the secondary volute 18 in the secondary volute 15, so that the air exhausted by the secondary compression device can be quickly cooled again, the cooling effect is good, a virtuous cycle is formed, the situations of over-temperature, alarming, stopping and the like are avoided, the normal work of the fuel cell system is ensured, and a water inlet and a water outlet communicated with the intermediate cooling water channel 20 are arranged on the secondary volute 15.
The main shaft 3 between the first-stage diffuser 6 and the first-stage bearing seat 4 is provided with a thrust disc 21, and two sides of the thrust disc 21 are respectively provided with a thrust air bearing 22.
Radial air bearings 23 are respectively arranged between the primary bearing seat 4 and the secondary bearing seat 5 and the main shaft 3.
The motor shell 1 is internally provided with a motor cooling water channel 24 which can cool the motor and can cool the air in the air transmission channel 8 at one time.
One end of the main shaft 3 is provided with a first-stage compression device and a thrust disc 21, and the other end is provided with a second-stage compression device, so that the weight balance of the two ends of the main shaft 3 can be kept, and the stability during working is improved.
The working principle is as follows:
when the air compressor works, the main shaft 3 of the motor drives the second-level worm wheel 14 and the first-level worm wheel 9 to synchronously rotate, air enters the first-level air inlet cavity 12 from the first-level air inlet 11, enters the first-level air outlet bend 13 after being subjected to first-level pressurization through the first-level worm wheel 9, then enters the second-level air inlet bend 19 through the air conveying channel 8, and then enters the second-level air inlet cavity 17 through the second-level air inlet bend 19, the conveying distance is short, the energy loss in the conveying process is reduced, the compression power is improved, the air enters the second-level worm channel 18 after being subjected to second-level pressurization through the second-level worm wheel 14, and finally is discharged to a fuel cell system from the second-level air outlet 16, so that the air supply with enough pressure is provided for the fuel cell system.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.

Claims (7)

1. The utility model provides a two side two-stage inner loop high speed centrifugal air compressor which characterized in that: including motor casing, stator and main shaft, motor casing both ends inboard installs the one-level bearing frame and the second grade bearing frame that are used for supporting the main shaft respectively, and one-level diffuser and second grade diffuser are installed respectively to the motor casing both ends outside, and one-level diffuser is installed to main shaft one end wearing out the one-level diffuser, and the main shaft other end wears out the second grade diffuser and installs second grade compressor arrangement, and one-level compressor arrangement and second grade compressor arrangement are linked together through establishing the gas transmission passageway in motor casing inside.
2. The bilateral two-stage internal circulation high-speed centrifugal air compressor according to claim 1, characterized in that: the one-level compression device comprises a one-level worm wheel arranged on the main shaft, a one-level volute connected with the motor shell is arranged on the outer side of the one-level worm wheel, a one-level air inlet is formed in the one-level volute, a one-level air inlet cavity is formed in the one-level volute, a one-level air outlet bend communicated with the one-level air inlet cavity is further formed in the one-level volute, and the one-level air outlet bend is communicated with the air conveying channel.
3. The bilateral two-stage internal circulation high-speed centrifugal air compressor according to claim 1, characterized in that: the secondary compression device comprises a secondary worm wheel arranged on the main shaft, a secondary volute connected with the motor shell is arranged on the outer side of the secondary worm wheel, a secondary air outlet is formed in the secondary volute, a secondary air inlet cavity and a secondary volute which are communicated are formed in the secondary volute, the secondary volute is communicated with the secondary air outlet, the secondary air inlet cavity is communicated with a secondary air inlet bend formed in the secondary volute, and the secondary air inlet bend is communicated with the air conveying channel.
4. The bilateral two-stage internal circulation high-speed centrifugal air compressor according to claim 3, characterized in that: an intermediate cooling water channel is arranged between the secondary air inlet bend and the secondary volute in the secondary volute, and a water inlet and a water outlet which are communicated with the intermediate cooling water channel are arranged on the secondary volute.
5. The bilateral two-stage internal circulation high-speed centrifugal air compressor according to claim 1, characterized in that: and a thrust disk is arranged on the main shaft between the first-stage diffuser and the first-stage bearing seat, and two thrust air bearings are respectively arranged on two sides of the thrust disk.
6. The bilateral two-stage internal circulation high-speed centrifugal air compressor according to claim 1, characterized in that: radial air bearings are respectively arranged between the primary bearing seat and the main shaft and between the secondary bearing seat and the main shaft.
7. The bilateral two-stage internal circulation high-speed centrifugal air compressor according to claim 1, characterized in that: and a motor cooling water channel is arranged in the motor shell.
CN202210476974.1A 2022-05-02 2022-05-02 Bilateral two-stage internal circulation high-speed centrifugal air compressor Pending CN114810624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210476974.1A CN114810624A (en) 2022-05-02 2022-05-02 Bilateral two-stage internal circulation high-speed centrifugal air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210476974.1A CN114810624A (en) 2022-05-02 2022-05-02 Bilateral two-stage internal circulation high-speed centrifugal air compressor

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CN114810624A true CN114810624A (en) 2022-07-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117469183A (en) * 2023-12-28 2024-01-30 山东天瑞重工有限公司 Centrifugal vacuum pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101303029A (en) * 2008-06-10 2008-11-12 寿光市康跃增压器有限公司 Turbocharger compressor apparatus for compressing inflammable mixture gas
CN202391816U (en) * 2011-12-12 2012-08-22 湖南天雁机械有限责任公司 Two-stage supercharger high-pressure stage air compressor volute with water-cooling structure
JP2017203407A (en) * 2016-05-11 2017-11-16 株式会社マーレ フィルターシステムズ Turbocharger
CN209925297U (en) * 2019-04-23 2020-01-10 博格华纳汽车零部件(宁波)有限公司 Integrated water-cooled turbocharger cooling system
CN114165464A (en) * 2021-11-15 2022-03-11 广州市昊志机电股份有限公司 Air compressor and fuel cell system
CN216381893U (en) * 2021-12-30 2022-04-26 势加透博洁净动力如皋有限公司 Two-stage supercharging centrifugal compressor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101303029A (en) * 2008-06-10 2008-11-12 寿光市康跃增压器有限公司 Turbocharger compressor apparatus for compressing inflammable mixture gas
CN202391816U (en) * 2011-12-12 2012-08-22 湖南天雁机械有限责任公司 Two-stage supercharger high-pressure stage air compressor volute with water-cooling structure
JP2017203407A (en) * 2016-05-11 2017-11-16 株式会社マーレ フィルターシステムズ Turbocharger
CN209925297U (en) * 2019-04-23 2020-01-10 博格华纳汽车零部件(宁波)有限公司 Integrated water-cooled turbocharger cooling system
CN114165464A (en) * 2021-11-15 2022-03-11 广州市昊志机电股份有限公司 Air compressor and fuel cell system
CN216381893U (en) * 2021-12-30 2022-04-26 势加透博洁净动力如皋有限公司 Two-stage supercharging centrifugal compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117469183A (en) * 2023-12-28 2024-01-30 山东天瑞重工有限公司 Centrifugal vacuum pump
CN117469183B (en) * 2023-12-28 2024-03-29 山东天瑞重工有限公司 Centrifugal vacuum pump

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