CN111692131A - Compressor and inlet guide vane device thereof - Google Patents
Compressor and inlet guide vane device thereof Download PDFInfo
- Publication number
- CN111692131A CN111692131A CN202010572822.2A CN202010572822A CN111692131A CN 111692131 A CN111692131 A CN 111692131A CN 202010572822 A CN202010572822 A CN 202010572822A CN 111692131 A CN111692131 A CN 111692131A
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- Prior art keywords
- guide vane
- wheel cover
- inlet
- inlet guide
- height
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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
- 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
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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
- 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
- F04D29/444—Bladed diffusers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a compressor and an inlet guide vane device thereof, wherein the inlet guide vane device comprises: a wheel cover; the inlet guide vane is arranged at the inlet end of the wheel cover, and the inlet end of the wheel cover is the end, positioned at the upstream of the inlet of the impeller, of the wheel cover; the inlet guide vane comprises a plurality of half-height blades which are arranged along the circumferential direction of the inlet end of the wheel cover, and the ratio of the height of the half-height blades extending into the inlet end of the wheel cover to the radius of the inner ring of the inlet end of the wheel cover is less than 0.6; the clearance area between two adjacent half-height blades and the axle center vacant areas of the half-height blades jointly form a flow channel with an opened inner part, and the axle center vacant areas of the half-height blades are middle gaps surrounded by one ends, far away from the wheel cover, of the half-height blades. The inlet guide vane device realizes differentiated adjustment, reduces adverse influence on the flowing condition of the vane tips, reduces the probability of separation of the compressor when the flow is small and the probability of blockage of the compressor when the flow is large, and optimizes the adjustment effect. Need not to set up controlling means, reduce and arrange the difficulty, reduce cost.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a compressor and an inlet guide vane device thereof.
Background
In centrifugal compressors, inlet guide vane regulation is a common and efficient way of regulation. The mode can change the pressure ratio-flow characteristic curve of the existing device, thereby leading the compressor to realize specific pressure ratio and flow in a certain range.
The current regulation of the inlet guide vane can change the speed triangle at the inlet of the impeller, change the work capacity of the impeller and further realize the regulation of the pressure ratio and the flow of the compressor. By adjusting the angle of the inlet fluid, the inlet attack angle is reduced, the phenomena of impact loss, flow separation, surge and the like under specific working conditions are inhibited, and the flow range and the high-efficiency interval of the compressor are widened.
The adjustment of the inlet guide vane can change the angle of the inlet guide vane at the upstream of the impeller through a control device, and the adjustment has two main functions:
firstly, the flow area is changed, the function similar to that of a valve is realized, and the inlet speed is adjusted; however, the above regulation must be equipped with corresponding control devices, occupying a large space, and particularly being difficult to arrange on a miniature, compact compressor; and a specific control algorithm is required to be matched, a specific blade angle is realized under a specific working condition, the requirements on control precision and a control strategy are high, and the control cost is high.
Secondly, the direction of the fluid is changed to lead the fluid to generate prerotation; however, the same fluid prerotation angle is implemented at all blade heights, and in the actual situation, the blade tip of the impeller has higher relative speed than the blade root, is more sensitive to the change of the inlet fluid angle and has worse flow condition, and even is easy to separate at a low flow rate and block at a high flow rate, so that the adjusting effect is poor.
Disclosure of Invention
The invention aims to provide an inlet guide vane device, which reduces layout difficulty and cost and optimizes the adjustment effect. The invention also provides a compressor with the inlet guide vane device.
To solve the above technical problem, the present invention provides an inlet guide vane device, including:
a wheel cover;
the inlet guide vane is arranged at the inlet end of the wheel cover, and the inlet end of the wheel cover is the end, positioned at the upstream of the inlet of the impeller, of the wheel cover; the inlet guide vane comprises a plurality of half-height blades, the half-height blades are arranged along the circumferential direction of the inlet end of the wheel cover, and the ratio of the height of the half-height blades extending into the inlet end of the wheel cover to the radius of an inner ring of the inlet end of the wheel cover is less than 0.6; the clearance area between two adjacent half high blades and the axle center vacant area of a plurality of half high blades form an internal open flow channel together, and the axle center vacant area of a plurality of half high blades is a middle gap surrounded by one end, far away from the wheel cover, of the plurality of half high blades.
Optionally, in the inlet guide vane device, the inlet guide vane further includes an annular duct, and a plurality of the half-height blades are disposed on an inner wall of the annular duct;
the annular pipeline is connected with the inlet end of the wheel cover.
Optionally, in the inlet guide vane device, an inner wall of the annular duct and an inner wall of the shroud inlet end are in smooth transition.
Optionally, in the inlet guide vane device, an inner wall of the annular duct has a mounting groove arranged along a circumferential direction thereof, and one end of the half-height blade is inserted into the mounting groove and welded and fixed.
Optionally, in the inlet guide vane device, the annular duct is connected to the inlet end of the shroud by a bolt.
Optionally, in the inlet guide vane device, an axial distance between a trailing edge of the half-height blade and a leading edge of the impeller is L, and a chord length of the half-height blade is D;
the value range of L/D is 0.5-5.
Optionally, in the inlet guide vane device, an angle between a chord line of the half-high vane and an axis of the inlet end of the shroud is-45 ° to 45 °.
The invention also provides a compressor, which comprises an impeller and the inlet guide vane device, wherein the inlet guide vane device is the inlet guide vane device as described in any one of the above items.
Optionally, in the compressor, the number of the half-height blades and the number of the blades of the impeller are prime numbers.
According to the inlet guide vane device provided by the invention, the inlet end of the wheel cover is the end of the wheel cover positioned at the upstream of the inlet of the impeller, so that fluid flows to the impeller after passing through the inlet guide vanes. The inlet guide vanes are arranged at the inlet end of the wheel cover and comprise a plurality of half-height blades, and the ratio of the height of the half-height blades extending into the inlet end of the wheel cover to the radius of the inner ring of the inlet end of the wheel cover is less than 0.6, so that the free ends (the ends of the half-height blades far away from the wheel cover) of the half-height blades are still away from the center of the inlet end of the wheel cover by a certain distance, and the axial center vacant areas of the half-height blades are not blocked by the half-height blades. Since the inlet end of the shroud is the end of the inlet of the impeller facing the shroud, fluid passing through the inlet guide vanes flows toward the impeller. Because the inlet guide vane comprises a plurality of half-height blades, and a gap area between two adjacent half-height blades and an axial center vacant area of the half-height blades jointly form a flow passage with an opened inner part, in the process that fluid flows to the impeller through the flow passage, the fluid flows to the blade tip from the gap area, and the fluid flows to the blade root and the blade leaf from the axial center vacant area. Therefore, the half-height blade has a large fluid adjusting effect on the blade tip of the impeller and a small fluid adjusting effect on the blade root and the blade of the impeller, so that the fluid inlet angle at the blade tip can be controlled by arranging the half-height blade, the influence on the blade root and the blade can be reduced as much as possible, differentiated adjustment is realized, the adverse influence on the flowing condition at the blade tip is reduced, the probability of separation and blockage of the compressor in small flow and large flow is reduced, and the fluid adjustment is optimized. In addition, a control device is not required to be arranged, the flow area is not changed, the control device is not required to be arranged, the occupied space is reduced, the arrangement difficulty is reduced, the installation is easy, a control algorithm is not required to be equipped, and the cost is reduced.
The invention also provides a compressor, which comprises an impeller and the inlet guide vane device, wherein the inlet guide vane device is any one of the inlet guide vane devices. Since the inlet guide vane device has the technical effects, the compressor with the inlet guide vane device also has the same technical effects, and the detailed description is omitted.
Drawings
Fig. 1 is a schematic structural diagram of an inlet guide vane device provided by the present invention.
Detailed Description
The core of the invention is to provide an inlet guide vane device, which reduces the layout difficulty and cost and optimizes the adjustment effect. The invention also provides a compressor with the inlet guide vane device.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, an embodiment of the present invention provides an inlet guide vane arrangement, comprising: the inlet guide vane comprises a wheel cover 1 and an inlet guide vane arranged at the inlet end of the wheel cover 1, wherein the inlet end of the wheel cover 1 is the end, positioned at the upstream of an inlet of an impeller 5, of the wheel cover 1; the inlet guide vane comprises a plurality of half-height blades 7, the half-height blades 7 are arranged along the circumferential direction of the inlet end of the wheel cover 1, and the ratio of the height of the half-height blades extending into the inlet end of the wheel cover 1 to the radius of an inner ring of the inlet end of the wheel cover 1 is less than 0.6; the gap area between two adjacent half-height blades 7 and the axial center vacant area of the half-height blades 7 form a flow passage with an opened inner part together, and the axial center vacant area of the half-height blades 7 is a middle gap surrounded by one end of each half-height blade 7 far away from the wheel cover 1.
In the inlet guide vane device provided by the embodiment of the invention, the inlet end of the shroud 1 is the end of the shroud 1 located at the upstream of the inlet of the impeller 5, so that fluid flows to the impeller 5 after passing through the inlet guide vanes. The inlet guide vane is arranged at the inlet end of the wheel cover 1 and comprises a plurality of half-high vanes 7, and the ratio of the height of the half-high vanes 7 extending into the inlet end of the wheel cover 1 to the radius of the inner ring of the inlet end of the wheel cover 1 is less than 0.6, so that the free ends (the ends of the half-high vanes 7 far away from the wheel cover 1) of the half-high vanes 7 are still at a certain distance from the center position of the inlet end of the wheel cover 1, and the axial center vacant areas of the half-high vanes 7 are not blocked by the half-high vanes 7. Since the inlet end of the shroud 1 is the end of the shroud 1 where the inlet of the impeller 5 is directed, the fluid passing through the inlet guide vanes flows towards the impeller 5. Because the inlet guide vane comprises a plurality of half-height blades 7, a gap area between two adjacent half-height blades 7 and an axial empty area of the plurality of half-height blades 7 jointly form a flow passage with an opened inner part, in the process that fluid flows through the flow passage and flows to the impeller 5, the fluid flows to the blade tip 2 from the fluid passing through the gap area, and the fluid passing through the axial empty area flows to the blade root 4. Therefore, the half-height blade 7 has a large fluid adjusting effect on the blade tip 2 of the impeller 5, and has a small fluid adjusting effect on the blade root 4 and the blade of the impeller 5, so that the fluid inlet angle on the blade tip 2 can be controlled by arranging the half-height blade 7, the influence on the blade root 4 and the blade can be reduced as much as possible, the differential adjustment is realized, the adverse influence on the flow condition of the blade tip 2 is reduced, the probability of separation and blockage of the compressor in small flow and large flow is reduced, and the fluid adjustment is optimized. In addition, a control device is not required to be arranged, the flow area is not changed, the control device is not required to be arranged, the occupied space is reduced, the arrangement difficulty is reduced, the installation is easy, a control algorithm is not required to be equipped, and the cost is reduced.
Wherein R isLeaf of Chinese date＝(RBlade tip+RBlade root) 2, i.e. the middle position in the leaf between the root 4 and the tip 2.
It can be understood that, when the heights of the half-height blades 7 are the same, the axial center vacant region is in a cylindrical structure, the half-height blades 7 are equivalent to the cutting of the classical inlet guide vane, and the radius of the cut part (the radius of the axial center vacant region) is larger than 0.4 times of the radius of the inner ring of the shroud. The half-height blades 7 are arranged along the circumferential direction of the inlet end of the wheel cover 1, so that the half-height blades 7 of the inlet guide vane are arranged into an annular structure, wherein the inner ring of the annular structure is the radius of the axial empty region, and the projection junction of the annular structure and the inner wall of the inlet end of the wheel cover 1 is the outermost edge of the fluid flowing to the inlet end of the wheel cover 1 through the inlet guide vane, namely the inner wall of the inlet end of the wheel cover 1. The projection boundary is the projection along the axial direction of the inlet end of the wheel cover 1. Therefore, the ratio of the radius of the axial center vacant area to the radius of the inner ring of the inlet end of the wheel cover 1 is more than 0.4, and therefore, the ratio of the height of the half-height blade extending into the inlet end of the wheel cover 1 to the radius of the inner ring of the inlet end of the wheel cover 1 is less than 0.6.
In order to facilitate the installation of the plurality of half-height blades, the inlet guide vane further comprises an annular pipeline 6, and the plurality of half-height blades 7 are arranged on the inner wall of the annular pipeline 6; the annular duct 6 is connected to the inlet end of the wheel cover 1. It is also possible to fix a plurality of half-high vanes 7 directly to the inner wall of the inlet end of the shroud 1.
In this embodiment, the annular duct 6 is bolted to the inlet end of the wheel cover 1. Of course, the operation of connecting the annular duct 6 to the inlet end of the wheel cover 1 can also be performed by welding. I.e. the annular duct 6 is removably connected to the inlet end of the wheel cover 1. Through the arrangement, the annular pipeline 6 and the half-height blades 7 inside the annular pipeline can be independently replaced, and the maintenance operation are facilitated.
Further, the inner wall of the annular duct 6 is in smooth transition with the inner wall of the inlet end of the wheel cover 1. That is, the inner wall profile of the annular duct 6 is smooth and excessive with the inner wall profile of the downstream component (inlet end of the wheel cover 1) to ensure the continuity of the slope and curvature. Through the arrangement, the change of the sectional area of the fluid flowing to the inlet end of the wheel cover 1 through the annular pipeline 6 is avoided, and the stability of the fluid flowing is ensured.
In the present embodiment, the meridian line of the shroud 1 (the shroud region included in the inlet guide vane device) and the hub of the impeller 5 may be a straight line, a curved line or a combined curved line.
The meridian line of the end of the half-height blade 7 remote from the shroud 1 (the free end of the half-height blade 7) may be a straight line, a curved line or a compound curve.
The free end of the half-height blade 7 is the end of the half-height blade 7 extending into the inlet end of the wheel cover 1.
Further, the profile curves of the half-height blades 7 at different blade heights may be the same or different. The leaf profile curve can be a binary leaf profile (1 curve), a straight line curved surface (2 curves) or a free curved surface (more than or equal to 3 curves).
In order to facilitate installation and improve connection stability, the inner wall of the annular pipeline 6 is provided with an installation groove arranged along the circumferential direction of the annular pipeline, and one end of the half-height blade 7 is inserted into the installation groove and is welded and fixed. The half-height blades 7 can also be welded directly to the inner wall of the annular duct 6; an inserting block can be further arranged on the inner wall of the annular pipeline 6, an inserting groove is formed in the half-height blade 7, and the half-height blade 7 is connected with the annular pipeline 6 through the matching of the inserting block and the inserting groove.
In order to ensure the adjusting effect of the half-height blades 7 on the fluid, the value range of L/D is 0.5-5. Wherein L is the axial distance between the trailing edge of the half-height blade 7 and the leading edge of the impeller 5, and the chord length of the half-height blade 7 is D. The trailing edge of the half-height blade 7 is the position of one side of the half-height blade 7 facing the impeller 5, and the leading edge of the impeller 5 is the position of one side of the impeller 5 facing the half-height blade 7.
The angle between the chord line of the half-high blade 7 and the axial line of the inlet end of the wheel cover 1 is-45 degrees to 45 degrees. The specific value of the angle between the chord line of the half-height blade 7 and the axis of the inlet end of the shroud 1 can be determined according to actual requirements. Of course, other angles, such as-45 ° to-90 ° or 45 ° to 90 °, specifically 60 ° or 75 °, may be set, and are not described herein one by one.
Further, for convenience of adjustment, the heights of the two adjacent half-height blades 7 extending into the inlet end of the wheel cover 1 are different. Through the arrangement, the adjustment operation is further facilitated. That is, there are cases where long and short blades are present in the plurality of half-height blades 7 on the inlet guide vane.
Of course, it is also possible to make the height of the half-height blades 7 extending into the inlet end of the shroud 1 the same, i.e. the height of the half-height blades 7 on the inlet guide vane the same. This will not be repeated.
The invention also provides a compressor, which comprises an impeller 5 and the inlet guide vane device, wherein the inlet guide vane device is any one of the inlet guide vane devices. Since the inlet guide vane device has the technical effects, the compressor with the inlet guide vane device also has the same technical effects, and the detailed description is omitted.
Further, the number of half-height blades 7 and the number of blades of the impeller 5 are prime numbers to each other. In order to further ensure the regulating effect of the inlet guide vane arrangement on the fluid flowing to the impeller 5. Since the fluid flows to the impeller 5 downstream thereof after passing through the inlet guide vanes, the structure of the inlet guide vanes (the number of half-high blades 7 and the structure of the half-high blades 7) has an influence on the operating state of the impeller 5. In the operating state, the impeller 5 is subject to pressure fluctuations. If the number of half-height blades 7 is a common divisor of the number of blades of the impeller 5, a periodic pressure fluctuation is generated in the impeller 5, which in turn makes the impeller 5 susceptible to noise of a certain frequency or causes periodic fatigue of the impeller 5, affecting efficiency and life. The number of the half-height blades 7 and the number of the blades of the impeller 5 are mutually prime numbers, so that the period of the pressure fluctuation is greatly prolonged, and the frequency of the fluctuation of the impeller 5 is reduced.
The inlet guide vane device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. An inlet guide vane arrangement, comprising:
a wheel cover (1);
the inlet guide vane is arranged at the inlet end of the wheel cover (1), and the inlet end of the wheel cover (1) is the end, positioned at the upstream of the inlet of the impeller (5), of the wheel cover (1); the inlet guide vane comprises a plurality of half-height blades (7), the half-height blades (7) are arranged along the circumferential direction of the inlet end of the wheel cover (1), and the ratio of the height of the half-height blades extending into the inlet end of the wheel cover (1) to the radius of an inner ring of the inlet end of the wheel cover (1) is less than 0.6; the clearance area between two adjacent half high blades (7) and the axle center vacant area of a plurality of half high blades (7) form an internal open flow channel together, and the axle center vacant area of a plurality of half high blades (7) is a middle gap surrounded by one end of the half high blades (7) far away from the wheel cover (1).
2. The inlet guide vane arrangement according to claim 1, characterized in that the inlet guide vane further comprises an annular duct (6), a plurality of the half-height blades (7) being provided on an inner wall of the annular duct (6);
the annular pipeline (6) is connected with the inlet end of the wheel cover (1).
3. The inlet guide vane device according to claim 2, characterized in that the inner wall of the annular duct (6) is in smooth transition with the inner wall of the inlet end of the shroud (1).
4. Inlet guide vane device according to claim 2, characterized in that the inner wall of the annular duct (6) has a mounting groove arranged along its circumference, into which one end of the half-height blade (7) is inserted and welded.
5. Inlet guide vane device according to claim 2, characterized in that the annular duct (6) is bolted to the inlet end of the shroud (1).
6. The inlet guide vane device according to claim 1, characterized in that the axial distance between the trailing edge of the half-height blade (7) and the leading edge of the impeller (5) is L, the chord length of the half-height blade (7) is D;
the value range of L/D is 0.5-5.
7. Inlet guide vane arrangement according to claim 1, characterized in that the angle between the chord line of the half-high vane (7) and the axis of the inlet end of the shroud (1) is-45 ° to 45 °.
8. A compressor comprising an impeller (5) and an inlet guide vane arrangement, characterized in that the inlet guide vane arrangement is as claimed in any one of claims 1-7.
9. Compressor according to claim 8, characterized in that the number of half-high blades (7) and the number of blades of the impeller (5) are each other prime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010572822.2A CN111692131A (en) | 2020-06-22 | 2020-06-22 | Compressor and inlet guide vane device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010572822.2A CN111692131A (en) | 2020-06-22 | 2020-06-22 | Compressor and inlet guide vane device thereof |
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| Publication Number | Publication Date |
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| CN111692131A true CN111692131A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010572822.2A Pending CN111692131A (en) | 2020-06-22 | 2020-06-22 | Compressor and inlet guide vane device thereof |
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| CN (1) | CN111692131A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4265915A1 (en) * | 2022-04-18 | 2023-10-25 | Toyota Jidosha Kabushiki Kaisha | Intake structure of turbocharged internal combustion engine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010270641A (en) * | 2009-05-20 | 2010-12-02 | Ihi Corp | Centrifugal compressor |
| CN103148021A (en) * | 2013-03-22 | 2013-06-12 | 清华大学 | Centrifugal compressor with inlet guide blades and turbocharger |
| JP5720267B2 (en) * | 2011-01-21 | 2015-05-20 | 株式会社Ihi | Centrifugal compressor |
| CN105358837A (en) * | 2013-07-04 | 2016-02-24 | 三菱重工业株式会社 | Centrifugal compressor |
| CN105026769B (en) * | 2013-02-22 | 2018-08-28 | 三菱重工业株式会社 | Centrifugal compressor |
| CN110081026A (en) * | 2019-05-16 | 2019-08-02 | 西安交通大学 | It is a kind of for weakening the entry guide vane and adjusting method of centrifugal compressor blade-tip leakage flow |
| CN110121599A (en) * | 2017-02-08 | 2019-08-13 | 三菱重工发动机和增压器株式会社 | Centrifugal compressor, turbocharger |
| CN104968944B (en) * | 2013-02-22 | 2019-08-23 | 三菱重工业株式会社 | Centrifugal compressor |
-
2020
- 2020-06-22 CN CN202010572822.2A patent/CN111692131A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010270641A (en) * | 2009-05-20 | 2010-12-02 | Ihi Corp | Centrifugal compressor |
| JP5720267B2 (en) * | 2011-01-21 | 2015-05-20 | 株式会社Ihi | Centrifugal compressor |
| CN105026769B (en) * | 2013-02-22 | 2018-08-28 | 三菱重工业株式会社 | Centrifugal compressor |
| CN104968944B (en) * | 2013-02-22 | 2019-08-23 | 三菱重工业株式会社 | Centrifugal compressor |
| CN103148021A (en) * | 2013-03-22 | 2013-06-12 | 清华大学 | Centrifugal compressor with inlet guide blades and turbocharger |
| CN105358837A (en) * | 2013-07-04 | 2016-02-24 | 三菱重工业株式会社 | Centrifugal compressor |
| CN110121599A (en) * | 2017-02-08 | 2019-08-13 | 三菱重工发动机和增压器株式会社 | Centrifugal compressor, turbocharger |
| CN110081026A (en) * | 2019-05-16 | 2019-08-02 | 西安交通大学 | It is a kind of for weakening the entry guide vane and adjusting method of centrifugal compressor blade-tip leakage flow |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4265915A1 (en) * | 2022-04-18 | 2023-10-25 | Toyota Jidosha Kabushiki Kaisha | Intake structure of turbocharged internal combustion engine |
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Application publication date: 20200922 |
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