CN201757065U - Electric combined multistage centrifugal air compressor device - Google Patents
Electric combined multistage centrifugal air compressor device Download PDFInfo
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- CN201757065U CN201757065U CN2010202715326U CN201020271532U CN201757065U CN 201757065 U CN201757065 U CN 201757065U CN 2010202715326 U CN2010202715326 U CN 2010202715326U CN 201020271532 U CN201020271532 U CN 201020271532U CN 201757065 U CN201757065 U CN 201757065U
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Abstract
The utility model discloses an electric combined multistage centrifugal air compressor device, which comprises an air compressor housing, wherein an air compressor housing gas flow collection passage and an air compressor inlet are arranged on the air compressor housing, an air compressor centrifugal impeller is mounted in the air compressor housing, an air compressor impeller outlet is formed on the air compressor housing in the position close to the tail part of the air compressor centrifugal impeller, the air compressor impeller outlet and the air compressor housing gas flow collection passage are communicated through a gas diffusion channel, an air compressor rotary wall is arranged between the air compressor centrifugal impeller and the air compressor housing, and a front row of blade grids are arranged at the front end of the air compressor rotary wall and are in transmission connection with a power driving device; a rotation disc is arranged in the air compressor housing in the position close to the gas diffusion channel, a rear row of blade grids are arranged on the rotation disc, and the rotation disc is fixedly connected with the air compressor rotary wall; and when the air compressor operates at a high speed, the whole size is equal to that of the conventional centrifugal air compressor, and the rotational speed is the same with the rotational speed of the centrifugal impeller, the three-stage working is realized, and the purpose of improving the pressure ratio of the air compressor effectively is achieved.
Description
Technical field
The utility model relates to a kind of pressurizer of internal combustion engine, relates in particular to a kind of electric composite multi-stage centrifugal compressor device that is used for vehicle turbocharger.
Background technique
In recent years, lifting along with vehicular engine power, pressure ratio to the turbosupercharger centrifugal compressor is had higher requirement, but be subjected to the restriction of turbosupercharger size, traditional turbosupercharger centrifugal compressor only uses the fresh air acting of first-stage centrifugal impeller to sucking, under high-speed working condition, be subjected to the restriction of impeller material intensity, reach more by what promote rotating speed that the mode of high pressure ratio is restricted; Under the low speed operating mode, the gas compressor responsiveness is relatively poor, and pressure ratio is lower.Therefore, promote pressure ratio, improve engine charge pressure and be subjected to very big restriction by traditional centrifugal compressor.
As shown in Figure 1, the centrifugal compressor of traditional turbosupercharger partly comprises compressor casing 1, gas compressor centrifugal impeller 2,9 three parts of gas diffusion passage, compressor impeller 2 high speed rotating under the drive of turbine shaft 13 under proper functioning, suck clean air from compressor inlet 4 and carry out centrifugal compression, high-speed boosting gas after the compression exports 11 from compressor impeller and enters gas diffusion passage 9, part kinetic energy is converted into the pressure energy, gas enters compressor casing gas collection runner 14 under the constraint of gas diffusion passage 9 simultaneously, and the pipeline that is connected by the outlet side with compressor casing 1 is sent into the engine combustion chamber interior and participated in burning then.The whole flow process of fresh air from compressor inlet 4 to compressor casing gas collection road 14,2 pairs of gas actings of gas compressor centrifugal impeller are only arranged, it is limited in one's ability to do work, because size and coupling limit, implements multistage supercharging technology and still has big difficulty simultaneously.Therefore design a kind of compressor apparatus, under its size prerequisite suitable, can effectively promote compressor pressure ratio, improve low speed response, have crucial meaning with traditional compressor.
The model utility content
Problem to be solved in the utility model is that a kind of electric composite multi-stage centrifugal compressor device that can effectively promote compressor pressure ratio and low speed response will be provided.
In order to address the above problem, the technical solution adopted in the utility model is:
A kind of electric composite multi-stage centrifugal compressor device, comprise compressor casing, compressor casing is provided with compressor casing gas collection runner and compressor inlet, the gas compressor centrifugal impeller is installed in the compressor casing, position near gas compressor centrifugal impeller afterbody on the compressor casing is provided with the compressor impeller outlet, by gas diffusion channel connection, it is characterized in that between described compressor impeller outlet and the compressor casing gas collection runner:
Be provided with gas compressor rotation wall between gas compressor centrifugal impeller and the compressor casing, the front end of described gas compressor rotation wall is provided with front-seat leaf grating, and this front row leaf grating and Power Drive Unit are in transmission connection;
Position near gas diffusion passage in the described compressor casing is provided with rotating disc, is provided with back row's leaf grating on rotating disc, and described rotating disc is fixedlyed connected with gas compressor rotation wall.
Below be the utility model for further improvement of these options:
The axial cross section of described gas compressor rotation wall is shaped as the little dumbbell shaped structure in big centre, both sides.
Further improve:
The rear portion of described gas compressor rotation wall has rotation wall rear portion wall, has diffusion passage diffusion wall in the described gas diffusion passage, and rotation wall rear portion wall is positioned at gas diffusion passage and consistent with the wall shape of diffusion passage diffusion wall.
Further improve:
Be provided with slide block between described gas compressor rotation wall and the compressor casing, has the consistent arc shaped slider inwall of outer wall arc in the described slide block with gas compressor rotation wall, its outside has the slide block outer wall that matches with the compressor casing inwall, and described slide block is fixedlyed connected with compressor casing.
The another kind of improvement:
Power Drive Unit comprises the motor that is installed in compressor inlet, and motor comprises rotor and motor stator, and described motor stator is fixedly supported in the compressor inlet by support device, and rotor is provided with motor shaft.
Further improve: described support device comprises motor supporting disk and the motor fixed rack that is installed in the motor supporting disk outside, and the center of supporting disk is provided with the supporting disk wheel hub, and motor stator is arranged on the supporting disk wheel hub.
The another kind of improvement:
Described front-seat leaf grating comprises the leaf grating wheel hub that is in transmission connection with motor shaft, is provided with some front-seat axial blades in the outside of leaf grating wheel hub, and the other end of described front-seat axial blade is fixedlyed connected with gas compressor rotation wall.
Further improve:
Described front-seat axial blade is the wing shape, front-seat axial blade comprises front-seat cascade blade leading edge and front-seat cascade blade trailing edge, the parallel to an axis setting of described front-seat cascade blade leading edge along the antecurvature setting of the sense of rotation of leaf grating wheel hub, front-seat cascade blade trailing edge along the leaf grating wheel hub.
The another kind of improvement:
Arrange axial blade after described back row's leaf grating comprises some that are fixedly installed on the rotating disc, row's axial blade is the rotation radial arrangement after described some.
Further improve:
Described back row's axial blade has windward side and two sides of lee face, and the windward side is that cambered surface, lee face are plane structure.
Further improve:
Described back row's axial blade comprises back row's cascade blade leading edge and back row's cascade blade trailing edge, and line between row cascade blade leading edge center, described back and the row's cascade blade trailing edge center, back and the line angle between back row's cascade blade leading edge and the rotating disc center are 30 degree～70 degree.
Working principle of the present utility model is:
Front-seat leaf grating sucks the gas compressor inner flow passage with the fresh air of compressor inlet under driven by motor, and realize the first order of fresh air is done work, centrifugal impeller is high speed rotating under turbine shaft drives, air through front-seat leaf grating acting is carried out second level acting, and realized that air is by axially to the transformation of radially flowing, the air that flows out centrifugal impeller is through the back row's leaf grating by driven by motor, realize third level acting, final air through three grades of actings, flow into internal-combustion engine with elevated pressures, realize purpose supercharging of internal combustion engine.
The utility model under the situation that overall dimensions is suitable with traditional centrifugal compressor and the centrifugal impeller rotating speed is identical, has been realized three grades of actings when the gas compressor high-speed working condition, reached the purpose of effective lifting gas compressor pressure ratio.Compare with traditional centrifugal compressor simultaneously, if reach identical pressure ratio, then this gas compressor centrifugal impeller rotating speed can be relatively low, and is significant for the alleviation of the impeller material strength problem in following high pressure-charging field.
Because the front-seat leaf grating of the utility model and back row's leaf grating are rotated by driven by motor, rotate independent fully with centrifugal impeller, therefore in the low operating mode of internal-combustion engine, turbine can't drive under the situation of centrifugal impeller high speed rotating, can be by the control motor speed, solve the difficult problem of the low effective supercharging of operating mode of internal-combustion engine, promote the transient response of gas compressor simultaneously.
Below in conjunction with drawings and Examples the utility model is further described:
Description of drawings
Accompanying drawing 1 is the structural representation of turbocharger air compressor in the utility model background technique;
Accompanying drawing 2 is structural representations of electric composite multi-stage centrifugal compressor among the utility model embodiment 1;
Accompanying drawing 3 is front-seat leaf grating among the utility model embodiment 1, rotation wall, gas compressor centrifugal impeller, back row's leaf grating and land diffusion wall spatial structure figure;
Accompanying drawing 4 is front-seat leaf grating among the utility model embodiment 1, rotation wall, back row's leaf grating, rotating disc spatial structure figure;
Accompanying drawing 5 is structural representations of back row leaf grating, rotating disc among the utility model embodiment 1;
Accompanying drawing 6 is front-seat leaf grating among the utility model embodiment 1, rotation wall and rotary disk structure schematic representation;
Accompanying drawing 7 is rear views of accompanying drawing 5;
Accompanying drawing 8 is front-seat leaf grating among the utility model embodiment 2, rotation wall, gas compressor centrifugal impeller, back row's leaf grating and land diffusion wall spatial structure figure;
Accompanying drawing 9 is front-seat leaf grating among the utility model embodiment 2, rotation wall, back row's leaf grating, rotating disc spatial structure figure.
Among the figure: the 1-compressor casing; 2-gas compressor centrifugal impeller; The 3-boss; The 4-compressor inlet; The front-seat axial blade of 5-; 7-rotation wall rear portion wall; 8-diffusion passage diffusion wall; 9-gas diffusion passage; 10-land diffusion wall; The outlet of 11-compressor impeller; Arrange axial blade behind the 12-; The 13-turbine shaft; 14-compressor casing gas collection runner; The 15-slide block; 16-slide block fixing bolt; The 17-rotor; 18-motor supporting disk; The 19-locating stud; The 20-motor shaft; The front-seat leaf grating of 21-; 22-leaf grating wheel hub; The 23-motor stator; The 24-rotating disc; Arrange leaf grating behind the 25-; The 26-rolling bearing; The 27-motor; 28-gas compressor rotation wall; The 29-motor fixed rack; 30-supporting disk wheel hub; 31-slide block inwall; The anterior wall of 32-rotation wall; 33-slide block outer wall; The front-seat cascade blade leading edge of 34-; The front-seat cascade blade trailing edge of 35-; Row's cascade blade leading edge behind the 36-; Row's cascade blade trailing edge behind the 37-.
Embodiment
Embodiment 1: as shown in Figure 2, electric composite multi-stage centrifugal compressor device, comprise compressor casing 1, compressor casing 1 is provided with compressor casing gas collection runner 14 and compressor inlet 4, turbine shaft 13 is installed in the compressor casing 1, gas compressor centrifugal impeller 2 is installed on the turbine shaft 13, is provided with compressor impeller outlet 11 near the position of gas compressor centrifugal impeller 2 afterbodys on the compressor casing 1, be communicated with by gas diffusion passage 9 between described compressor impeller outlet 11 and the compressor casing gas collection runner 14.
Be provided with the gas compressor rotation wall 28 that axial cross section is shaped as the little dumbbell shaped structure in big centre, both sides between gas compressor centrifugal impeller 2 and the compressor casing 1, the front end of described gas compressor rotation wall 28 is provided with front-seat leaf grating 21, and this front row leaf grating 21 is in transmission connection with Power Drive Unit;
Position near gas diffusion passage 9 in the described compressor casing 1 is provided with rotating disc 24, is provided with back row's leaf grating 25 on rotating disc 24, and described rotating disc 24 is fixedlyed connected with gas compressor rotation wall 28.
Position near gas diffusion passage 9 in the described compressor casing 1 is provided with land diffusion wall 10, and described land diffusion wall 10 has groove near a side of gas diffusion passage 9, and described rotating disc 24 is arranged in this groove.
Gas compressor rotation wall one end extends to compressor inlet 4 direction flarings, the anterior wall 32 of the rotation wall that formation links to each other with front-seat leaf grating 21, the other end radially extends, form with the back and arrange the corresponding rotation wall rear portion wall 7 of leaf grating 25, the anterior wall 32 of rotation wall welds together with front-seat leaf grating 21, has diffusion passage diffusion wall 8 in the described gas diffusion passage 9, rotation wall rear portion wall 7 is positioned at gas diffusion passage 9 and consistent with the wall shape of diffusion passage diffusion wall 8, and rotation wall rear portion wall 7 is controlled in the 0.4mm with back row's leaf grating 25 blade tip clearances.
Power Drive Unit comprises the motor 27 that is installed in compressor inlet 4, and motor 27 comprises rotor 17 and motor stator 23, and described motor stator 23 is fixedly supported in the compressor inlet 4 by support device, and rotor 17 is provided with motor shaft 20.
For the motor shaft 20 and turbine shaft 13 coaxial rotations that guarantees rotor 17, support device comprises motor supporting disk 18 and is installed in four motor fixed racks 29 in motor supporting disk 18 outsides, the center of supporting disk is provided with supporting disk wheel hub 30, and motor stator 23 is arranged on the supporting disk wheel hub 30.
On the spider hub 30 aperture is set, is used for construction bolt fixed electrical machinery 27.
In order to guarantee enough gas-entered passageways, compressor inlet 4 diameters are 1.5～2 times of gas compressor centrifugal impeller 2 diameters.
In order to guarantee that gas compressor rotates wall 28 and installs smoothly, be provided with slide block 15 between described gas compressor rotation wall 28 and the compressor casing 1, slide block divides two, forms a circumference altogether, and slide block is fixed on the compressor casing 1 by slide block fixing bolt 16.
In order to guarantee that rotating disc 24 is lower with turbine shaft 13 coaxial rotations and relative rotation speed, land diffusion wall 10 is provided with boss 3, and boss 3 is central column.
Have the consistent arc shaped slider inwall 31 of outer wall arc that rotates wall 28 with gas compressor in the described slide block 15, its outside has the slide block outer wall 33 that matches with compressor casing 1 inwall, and slide block outer wall 33 diameters guarantee to be not less than gas compressor rotation wall inlet diameter.
Form the gap respectively between gas compressor rotation wall 28 and slide block inwall 31, compressor casing 1 and the gas compressor centrifugal impeller 2, this gap size is less than 0.4mm.
As shown in Figure 3, Figure 4, described front-seat leaf grating 21 comprises the leaf grating wheel hub 22 that is in transmission connection with motor shaft 20, is provided with some front-seat axial blades 5 in the outside of leaf grating wheel hub 22, and the other end of described front-seat axial blade 5 is fixedlyed connected with gas compressor rotation wall 28.
Described front-seat axial blade 5 is the wing shape, front-seat axial blade 5 comprises front-seat cascade blade leading edge 34 and front-seat cascade blade trailing edge 35, the parallel to an axis setting of described front-seat cascade blade leading edge 34 along the antecurvature setting of the sense of rotation of leaf grating wheel hub 22, front-seat cascade blade trailing edge 35 along leaf grating wheel hub 22.
As shown in Figure 5, row's axial blade 12 after described back row's leaf grating 25 comprises some that are fixedly installed on the rotating disc 24, row's axial blade 12 is the rotation radial arrangement after described some.
As shown in Figure 6, rotating disc 24 external diameters are not less than the external diameter of rotation wall rear portion wall 7, locate by locating stud 19 between rotating disc 24 and the gas compressor rotation wall 28.
Identical with centrifugal impeller 2 sense of rotation in order to guarantee back row's leaf grating 25 exit flow absolute velocity rotation directions, the proportional limit of motor speed and turbine shaft rotating speed is between 0-1/3.
As shown in Figure 3, turbine shaft 13 is along Y2 direction rotation, front-seat leaf grating 21, gas compressor rotation wall 28, back row's leaf grating 25 and rotating disc 24 under motor shaft 20 drives with turbine shaft 13 coaxial relative rotations, sense of rotation is Y1.
Described back row's axial blade 12 has windward side and two sides of lee face, and the windward side is that cambered surface, lee face are plane structure.
As shown in Figure 5, described back row's axial blade 12 comprises back row's cascade blade leading edge 36 and back row's cascade blade trailing edge 37, back row's cascade blade leading edge 36 is obliquely installed towards sense of rotation Y1, and the line between row cascade blade leading edge 36 centers, described back and row's cascade blade trailing edge 37 centers, back is that 30 degree～70 are spent with the line angle a between back row's cascade blade leading edge 36 and rotating disc 24 centers.
Present embodiment is under the little prerequisite of existing centrifugal compressor dimensional changes, realized that 2 pairs of front-seat leaf grating 21 and gas compressor centrifugal impellers change and the architecture advances of gas compressor centrifugal impeller 2 and 25 pairs of commentaries on classics of back row's leaf grating, realized the fresh air two-stage having promoted the pressure ratio of gas compressor effectively to changeing the purpose of three grades of actings.The type electric composite multi-stage centrifugal compressor technology is simple, can adopt same type of material and existing casting and processing technique to finish.
Embodiment 2: the present embodiment difference from Example 1 is that front-seat axial blade 5 is different with the setting angle of back row's axial blade 12, and remaining part is identical.
As shown in Figure 7, front-seat leaf grating 21 in the present embodiment, rotation wall 28, back row's leaf grating 25 and rotating disc 24 sense of rotation and turbine shaft under motor shaft 20 drives adapts with it and adjusted front-seat leaf grating 21 and leaf grating 25 setting angle of blade is separately arranged in the back in the same way.All the other and embodiment one are identical.
As shown in Figure 8, turbine shaft 13 is along Y2 direction rotation, front-seat axial blade 5, rotation wall 28, back row's axial blade 12 and rotating disc 24 under motor shaft 20 drives with turbine shaft 13 coaxial rotations in the same way, sense of rotation also is Y2.
As shown in Figure 9, front-seat leaf grating 21 blades are wing blade, front-seat axial blade 5 comprises front-seat cascade blade leading edge 34 and front-seat cascade blade trailing edge 35, the parallel to an axis setting of described front-seat cascade blade leading edge 34 along the antecurvature setting of the sense of rotation of leaf grating wheel hub 22, front-seat cascade blade trailing edge 35 along leaf grating wheel hub 22.
Described back row's axial blade 12 has windward side and two sides of lee face, and the windward side is that cambered surface, lee face are plane structure.
Back row's cascade blade leading edge 36 is obliquely installed towards sense of rotation Y2, and the line between row cascade blade leading edge 36 centers, described back and row's cascade blade trailing edge 37 centers, back is that 30 degree～70 are spent with the line angle β between back row's cascade blade leading edge 36 and rotating disc 24 centers.
Present embodiment has been realized the purpose of front-seat leaf grating 21, gas compressor centrifugal impeller 2 and 25 3 grades of actings of back row's leaf grating under the little prerequisite of existing centrifugal compressor dimensional changes, promoted the pressure ratio of gas compressor effectively.The type electric composite multi-stage centrifugal compressor technology is simple, can adopt same type of material and existing casting and processing technique to finish.
Claims (11)
1. electric composite multi-stage centrifugal compressor device, comprise compressor casing (1), compressor casing (1) is provided with compressor casing gas collection runner (14) and compressor inlet (4), gas compressor centrifugal impeller (2) is installed in the compressor casing (1), the position that compressor casing (1) is gone up near gas compressor centrifugal impeller (2) afterbody is provided with compressor impeller outlet (11), be communicated with by gas diffusion passage (9) between described compressor impeller outlet (11) and the compressor casing gas collection runner (14), it is characterized in that:
Be provided with gas compressor rotation wall (28) between gas compressor centrifugal impeller (2) and the compressor casing (1), the front end of described gas compressor rotation wall (28) is provided with front-seat leaf grating (21), and this front row leaf grating (21) is in transmission connection with Power Drive Unit;
Position near gas diffusion passage (9) in the described compressor casing (1) is provided with rotating disc (24), is provided with back row's leaf grating (25) on rotating disc (24), and described rotating disc (24) is fixedlyed connected with gas compressor rotation wall (28).
2. a kind of electric composite multi-stage centrifugal compressor device according to claim 1 is characterized in that: the axial cross section of described gas compressor rotation wall (28) is shaped as the little dumbbell shaped structure in big centre, both sides.
3. a kind of electric composite multi-stage centrifugal compressor device according to claim 1 and 2, it is characterized in that: the rear portion of described gas compressor rotation wall (28) has rotation wall rear portion wall (7), have diffusion passage diffusion wall (8) in the described gas diffusion passage (9), rotation wall rear portion wall (7) is positioned at gas diffusion passage (9) and consistent with the wall shape of diffusion passage diffusion wall (8).
4. a kind of electric composite multi-stage centrifugal compressor device according to claim 3, it is characterized in that: Power Drive Unit comprises the motor (27) that is installed in compressor inlet (4), motor (27) comprises rotor (17) and motor stator (23), described motor stator (23) is fixedly supported in the compressor inlet (4) by support device, and rotor (17) is provided with motor shaft (20).
5. a kind of electric composite multi-stage centrifugal compressor device according to claim 4, it is characterized in that: described front-seat leaf grating (21) comprises the leaf grating wheel hub (22) that is in transmission connection with motor shaft (20), be provided with some front-seat axial blades (5) in the outside of leaf grating wheel hub (22), the other end of described front-seat axial blade (5) is fixedlyed connected with gas compressor rotation wall (28).
6. a kind of electric composite multi-stage centrifugal compressor device according to claim 5, it is characterized in that: described front-seat axial blade (5) is the wing shape, front-seat axial blade (5) comprises front-seat cascade blade leading edge (34) and front-seat cascade blade trailing edge (35), the parallel to an axis setting of described front-seat cascade blade leading edge (34) along the antecurvature setting of sense of rotation of leaf grating wheel hub (22), front-seat cascade blade trailing edge (35) along leaf grating wheel hub (22).
7. a kind of electric composite multi-stage centrifugal compressor device according to claim 4, it is characterized in that: arrange axial blade (12) after described back row's leaf grating (25) comprises some that are fixedly installed on the rotating disc (24), arrange axial blade (12) after described some and be the rotation radial arrangement.
8. a kind of electric composite multi-stage centrifugal compressor device according to claim 7 is characterized in that: described back row's axial blade (12) has windward side and two sides of lee face, and the windward side is that cambered surface, lee face are plane structure.
9. a kind of electric composite multi-stage centrifugal compressor device according to claim 8, it is characterized in that: described back row's axial blade (12) comprises back row's cascade blade leading edge (36) and back row's cascade blade trailing edge (37), and line between row cascade blade leading edge (36) center, described back and row's cascade blade trailing edge (37) center, back and the line angle between back row's cascade blade leading edge (36) and rotating disc (24) center are 30 degree～70 degree.
10. a kind of electric composite multi-stage centrifugal compressor device according to claim 4, it is characterized in that: described support device comprises motor supporting disk (18) and is installed in the motor fixed rack (29) in motor supporting disk (18) outside, the center of supporting disk is provided with supporting disk wheel hub (30), and motor stator (23) is arranged on the supporting disk wheel hub (30).
11. a kind of electric composite multi-stage centrifugal compressor device according to claim 3, it is characterized in that: be provided with slide block (15) between described gas compressor rotation wall (28) and the compressor casing (1), the slide block inwall (31) that has the arc consistent in the described slide block (15) with the outer wall arc of gas compressor rotation wall (28), its outside has the slide block outer wall (33) that matches with compressor casing (1) inwall, and described slide block (15) is fixedlyed connected with compressor casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202715326U CN201757065U (en) | 2010-07-27 | 2010-07-27 | Electric combined multistage centrifugal air compressor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202715326U CN201757065U (en) | 2010-07-27 | 2010-07-27 | Electric combined multistage centrifugal air compressor device |
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| CN201757065U true CN201757065U (en) | 2011-03-09 |
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| CN2010202715326U Expired - Fee Related CN201757065U (en) | 2010-07-27 | 2010-07-27 | Electric combined multistage centrifugal air compressor device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922459A (en) * | 2010-07-28 | 2010-12-22 | 寿光市康跃增压器有限公司 | Electric composite multi-stage centrifugal compressor device |
| CN103790857A (en) * | 2014-03-05 | 2014-05-14 | 肖明训 | Compound mixed-flow impeller |
| TWI632288B (en) * | 2017-06-28 | 2018-08-11 | 峰安車業股份有限公司 | Compressor wheel and fluid compression device comprising the same |
-
2010
- 2010-07-27 CN CN2010202715326U patent/CN201757065U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922459A (en) * | 2010-07-28 | 2010-12-22 | 寿光市康跃增压器有限公司 | Electric composite multi-stage centrifugal compressor device |
| WO2012012926A1 (en) * | 2010-07-28 | 2012-02-02 | Wang Hang | Electric composite multi-stage centrifugal compressor device |
| CN103790857A (en) * | 2014-03-05 | 2014-05-14 | 肖明训 | Compound mixed-flow impeller |
| CN103790857B (en) * | 2014-03-05 | 2016-05-11 | 肖明训 | A kind of compound mixed-flow impeller |
| TWI632288B (en) * | 2017-06-28 | 2018-08-11 | 峰安車業股份有限公司 | Compressor wheel and fluid compression device comprising the same |
| US10400782B2 (en) | 2017-06-28 | 2019-09-03 | Noporvis Co., Ltd. | Compressor wheel and fluid compression device comprising the same |
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Granted publication date: 20110309 Termination date: 20120727 |