CN112360565A - Twin dissimilar material composite runoff impeller and manufacturing process thereof - Google Patents
Twin dissimilar material composite runoff impeller and manufacturing process thereof Download PDFInfo
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- CN112360565A CN112360565A CN202011154661.1A CN202011154661A CN112360565A CN 112360565 A CN112360565 A CN 112360565A CN 202011154661 A CN202011154661 A CN 202011154661A CN 112360565 A CN112360565 A CN 112360565A
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- impeller
- rotating shaft
- radial
- runoff
- radial flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/18—Non-positive-displacement machines or engines, e.g. steam turbines without stationary working-fluid guiding means
- F01D1/22—Non-positive-displacement machines or engines, e.g. steam turbines without stationary working-fluid guiding means traversed by the working-fluid substantially radially
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
-
- 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
Abstract
The invention relates to a twin dissimilar material composite runoff impeller and a manufacturing process thereof. According to the structural size parameters of a turbine, a gas compressor and a rotor in a closed cycle power generation system, on the basis of determining the size parameters and welding process parameters of the integral connecting part of the connecting rotating shaft, the runoff gas compressor impeller and the runoff turbine impeller, the integral connecting part of the connecting rotating shaft, the runoff gas compressor impeller and the runoff turbine impeller is processed, the integral connecting of the connecting rotating shaft and the runoff gas compressor impeller and the integral connecting of the runoff gas compressor impeller and the runoff turbine impeller are further completed, and finally the composite runoff impeller is processed. The structure can effectively reduce the number of rotor components of the power generation system, reduce the processing and assembling difficulty of the rotor assembly, improve the rigidity and the strength of the rotor, and contribute to ensuring the reliability and the service life of the system.
Description
Technical Field
The invention belongs to the technical field of closed Brayton cycle thermoelectric conversion system structures, and particularly relates to a twin dissimilar material composite runoff impeller and a manufacturing process thereof.
Background
As a novel thermoelectric conversion form, the closed Brayton cycle thermoelectric conversion system can realize the conversion of heat energy to mechanical work through the thermodynamic processes of heat absorption, expansion work, heat release, compression and the like in a closed environment by means of a certain gas working medium, and further converts the mechanical work into electric energy through a generator. During the working process of the closed Brayton cycle thermoelectric conversion system, only energy exchange is carried out with the outside, and no working medium exchange is carried out. The typical closed Brayton cycle thermoelectric conversion system mainly structurally comprises a turbine, a gas compressor, a generator, a heat regenerator, a cooler, a heat source and the like.
The turbine impeller and the compressor impeller are high-speed rotating parts in the closed Brayton cycle thermoelectric conversion system, and have important influence on the overall performance, structural layout, reliability and service life of the closed Brayton cycle thermoelectric conversion system. In the operation process of the closed Brayton cycle thermoelectric conversion system, the turbine impeller and the compressor impeller are in a high-speed rotation state, and the rotation speed of the closed Brayton cycle thermoelectric conversion system can reach tens of thousands of revolutions per minute. When the turbine impeller and the compressor impeller rotate at high speed, conversion between mechanical energy and working medium total energy is realized, and power transmission is carried out between the turbine impeller and the compressor impeller through a rotating shaft. When the turbine impeller, the compressor impeller and the connecting rotating shaft move relatively in the working process of the closed cycle power generation system, the closed Brayton cycle thermoelectric conversion system cannot work normally, and the structural damage of the system can be caused. In addition, the turbine impeller and the compressor impeller adopt light structures, so that the weight of a rotor of the power generation system can be reduced, and the structural reliability of the system can be improved. Therefore, the reliable transmission of power and torque between the turbine impeller and the compressor impeller is the key for ensuring the working reliability of the closed Brayton cycle thermoelectric conversion system.
The turbine impeller and the compressor impeller of the existing closed Brayton cycle thermoelectric conversion system both adopt independent structures, the turbine impeller and the compressor impeller are connected through a rotating shaft, and the torque and power transmission of the turbine impeller and the compressor impeller is completely realized by the friction force between the turbine impeller and the rotating shaft of the compressor impeller. The structure has a plurality of components, can transmit limited power or torque, and is easy to cause the connection part of the rotating shaft and the compressor impeller or the turbine impeller to loosen particularly under the condition of large torque transmission. Therefore, aiming at the working characteristics of the radial-flow turbine impeller, the compressor impeller and the rotor structure of the closed Brayton cycle thermoelectric conversion system, the structure of the turbine impeller and the compressor impeller is reasonably designed, the torque and power transfer characteristics of the turbine impeller and the compressor impeller can be effectively improved, and the working reliability of the closed Brayton cycle thermoelectric conversion system is ensured.
Disclosure of Invention
The invention provides a twin dissimilar material composite runoff impeller and a manufacturing process thereof, aiming at the structural design and manufacturing problems of a rotating part of a turbine of a closed Brayton cycle thermoelectric conversion system. The structure comprises a connecting rotating shaft, a runoff compressor impeller and a runoff turbine impeller, wherein the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller are integrally connected by welding and the like to form the finished composite runoff impeller. According to the structural size parameters of a turbine, a gas compressor and a rotor in a closed cycle power generation system, on the basis of determining the size parameters and welding process parameters of the integral connecting part of the connecting rotating shaft, the runoff gas compressor impeller and the runoff turbine impeller, the integral connecting part of the connecting rotating shaft, the runoff gas compressor impeller and the runoff turbine impeller is processed, the integral connecting of the connecting rotating shaft and the runoff gas compressor impeller and the integral connecting of the runoff gas compressor impeller and the runoff turbine impeller are further completed, and finally the composite runoff impeller is processed. The structure can effectively reduce the number of rotor components of the power generation system, reduce the processing and assembling difficulty of the rotor assembly, improve the rigidity and the strength of the rotor, and contribute to ensuring the reliability and the service life of the system.
The technical scheme of the invention is as follows:
a twin dissimilar material composite runoff impeller comprises a connecting rotating shaft, a runoff compressor impeller and a runoff turbine impeller, wherein the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller are of an integrated structure, and the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller are positioned on the same axis;
a round hole used for being connected with a rotor is formed in the center of one end of the connecting rotating shaft, a conical end face welded with the radial flow compressor impeller is formed in the other end of the connecting rotating shaft, a threaded hole assembled with the rotor is formed in the bottom of the round hole of the connecting rotating shaft, a tool withdrawal groove is formed in the bottom of the threaded hole of the connecting rotating shaft, the thread turning direction of the threaded hole of the connecting rotating shaft is the same as the turning direction of the rotor when the power generation system works, and the connecting rotating shaft is made of a material capable of being welded with the radial flow compressor impeller;
the wheel back of the radial flow compressor impeller is opposite to the wheel back of the radial flow turbine impeller, the air inlet end of the radial flow compressor impeller is connected with an inner conical surface welded with the rotating shaft, the central part of the wheel back of the radial flow compressor impeller is provided with an annular boss welded with the radial flow turbine impeller, and the radial flow compressor impeller is made of materials capable of being welded with the connecting rotating shaft and the radial flow turbine impeller;
the back part of the radial-flow turbine impeller is provided with an annular boss welded with the radial-flow compressor impeller, the exhaust side end face of the radial-flow turbine impeller is provided with a hexagonal boss for assembling and clamping, and the radial-flow turbine impeller is made of a high-temperature resistant material which can be welded with the radial-flow compressor impeller.
The manufacturing process of the twin dissimilar material composite radial flow impeller comprises the following steps:
a. determining the size parameters of the integral connecting part of the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller: determining the sizes of an inner conical surface and an annular boss of an impeller of a connecting rotating shaft and a radial flow compressor and the size of an annular boss of an impeller of a radial flow turbine according to the size parameters of a turbine and the compressor of the closed cycle power generation system;
b. determining welding technological parameters of the connecting rotating shaft and the radial flow compressor impeller and the radial flow turbine impeller: determining welding technological parameters for connecting the rotating shaft and the runoff compressor impeller and the runoff turbine impeller according to working state parameters of the closed cycle power generation system;
c. respectively processing the integrated connecting part of the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller: processing the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller according to the size parameters of the connecting rotating shaft, the inner conical surface and the annular boss of the runoff compressor impeller and the size parameters of the annular boss of the runoff turbine impeller determined in the step a;
d. the connecting rotating shaft is integrally connected with the radial flow compressor impeller: b, integrally connecting the connecting rotating shaft and the radial flow compressor impeller by welding the welding process parameters determined in the step b;
e. the integral connection of the radial flow compressor impeller and the radial flow turbine impeller is as follows: b, integrally connecting the radial flow compressor impeller and the radial flow turbine impeller by welding the welding process parameters determined in the step b;
f. processing of the composite radial flow impeller: and processing other parts of the combined type runoff impeller formed by integrally connecting the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller.
The invention has the beneficial effects that:
the twin dissimilar material composite runoff impeller and the manufacturing process structure thereof are formed by integrally connecting the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller, and can effectively ensure the power and torque transmission among the turbine, the compressor, the rotating shaft and other parts of the rotor. The connecting rotating shaft, the radial flow compressor impeller and the radial flow turbine impeller are made of different materials, so that the weight of the structure can be further reduced, and the transient response of the rotor is improved. The connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller are welded, so that the connecting rotating shaft, the runoff compressor impeller and the runoff turbine impeller can be integrally connected. The connecting part of the connecting rotating shaft and the radial flow compressor impeller adopts a conical surface structure, so that the stress uniformity and the positioning accuracy of the connecting rotating shaft and the radial flow compressor impeller in the friction welding process can be ensured. The connecting rotating shaft is provided with a round hole and a threaded hole structure, so that the connecting strength and the connecting strength can be effectively guaranteed. The exhaust side end face of the radial flow turbine impeller is provided with a hexagonal counter bore, so that the impeller, the rotating shaft and other components can be conveniently assembled. The structure can effectively reduce the number of rotor components of the power generation system, reduce the processing and assembling difficulty of the rotor assembly, improve the rigidity and the strength of the rotor, and contribute to ensuring the reliability and the service life of the system.
Drawings
Fig. 1-4 are schematic structural views of a twin dissimilar material composite radial flow impeller according to an embodiment of the present invention.
1 connecting rotating shaft, 2 radial flow compressor impeller, 3 radial flow turbine impeller and 4 connecting rotating shaft
5 the threaded hole 6 of the connecting rotating shaft is connected with the tool withdrawal groove 7 of the connecting rotating shaft and is connected with the conical end surface of the rotating shaft
Annular boss of inner conical surface 9 runoff compressor impeller of 8 runoff compressor impeller
10 runoff turbine wheel annular boss 11 runoff turbine wheel hexagonal boss
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A twin dissimilar material composite runoff impeller comprises a connecting rotating shaft 1, a runoff compressor impeller 2 and a runoff turbine impeller 3, wherein the connecting rotating shaft 1, the runoff compressor impeller 2 and the runoff turbine impeller 3 are of an integrated structure, and the connecting rotating shaft 1, the runoff compressor impeller 2 and the runoff turbine impeller 3 are positioned on the same axis as shown in figure 1;
a round hole 4 used for being connected with a rotor is arranged at the central part of one end of the connecting rotating shaft 1, a conical end face 7 welded with the radial flow compressor impeller 2 is arranged at the other end of the connecting rotating shaft 1, a threaded hole 5 assembled with the rotor is arranged at the bottom of the round hole 4 of the connecting rotating shaft 1, a tool withdrawal groove 6 is arranged at the bottom of the threaded hole 5 of the connecting rotating shaft 1, the thread turning direction of the threaded hole 5 of the connecting rotating shaft 1 is the same as the turning direction of the rotor when a power generation system works, and the connecting rotating shaft 1 is made of a material capable of being welded with the radial flow compressor impeller 2, as shown in figure 2;
the wheel back of the radial flow compressor impeller 2 is opposite to the wheel back of the radial flow turbine impeller 3, the air inlet end of the radial flow compressor impeller 2 is connected with an inner conical surface 8 welded with the rotating shaft 1, the central part of the wheel back of the radial flow compressor impeller 2 is provided with an annular boss 9 welded with the radial flow turbine impeller 3, and the radial flow compressor impeller 2 is made of materials capable of being welded with the rotating shaft 1 and the radial flow turbine impeller 3, as shown in figure 3;
the back part of the radial-flow turbine impeller 3 is provided with an annular boss 10 welded with the radial-flow compressor impeller 2, the exhaust side end face of the radial-flow turbine impeller 3 is provided with a hexagonal boss 11 used for assembling and clamping, and the radial-flow turbine impeller 3 is made of a high-temperature resistant material which can be welded with the radial-flow compressor impeller 2, as shown in fig. 4.
The manufacturing process of the twin dissimilar material composite radial flow impeller comprises the following steps:
a. determining the size parameters of the integral connecting part of the connecting rotating shaft 1, the radial flow compressor impeller 2 and the radial flow turbine impeller 3: determining the sizes of the connecting rotating shaft 1, the inner conical surface 8 and the annular boss 9 of the radial flow compressor impeller and the annular boss 10 of the radial flow turbine impeller according to the size parameters of a turbine and a compressor of the closed cycle power generation system;
b. determining welding technological parameters of the connecting rotating shaft 1 and the radial flow compressor impeller 2 and the radial flow turbine impeller 3: according to the working state parameters of the closed cycle power generation system, determining welding process parameters of the connecting rotating shaft 1 and the radial flow compressor impeller 2 and the radial flow turbine impeller 3;
c. respectively processing the integrated connecting parts of the connecting rotating shaft 1, the radial flow compressor impeller 2 and the radial flow turbine impeller 3: processing the connecting rotating shaft 1, the runoff compressor impeller 2 and the runoff turbine impeller 3 according to the size parameters of the connecting rotating shaft 1, the inner conical surface 8 and the annular boss 9 of the runoff compressor impeller and the annular boss 10 of the runoff turbine impeller determined in the step a;
d. the connecting rotating shaft 1 is integrally connected with the radial flow compressor impeller 2: integrally connecting the connecting rotating shaft 1 and the radial flow compressor impeller 2 by welding the welding process parameters determined in the step b;
e. the runoff compressor impeller 2 is connected with the runoff turbine impeller 3 in an integrated manner: b, integrally connecting the radial flow compressor impeller 2 and the radial flow turbine impeller 3 by welding the welding process parameters determined in the step b;
f. processing of the composite radial flow impeller: and processing other parts of the combined type runoff impeller formed by integrally connecting the connecting rotating shaft 1, the runoff compressor impeller 2 and the runoff turbine impeller 3.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (2)
1. A twin dissimilar material combined type runoff impeller which is characterized in that: the radial-flow compressor impeller and the radial-flow turbine impeller are characterized by comprising a connecting rotating shaft (1), a radial-flow compressor impeller (2) and a radial-flow turbine impeller (3), wherein the connecting rotating shaft (1), the radial-flow compressor impeller (2) and the radial-flow turbine impeller (3) are of an integrated structure, and the connecting rotating shaft (1), the radial-flow compressor impeller (2) and the radial-flow turbine impeller (3) are located on the same axis;
a round hole (4) used for being connected with a rotor is formed in the center of one end of the connecting rotating shaft (1), a conical end face (7) welded with the radial flow compressor impeller (2) is formed in the other end of the connecting rotating shaft (1), a threaded hole (5) assembled with the rotor is formed in the bottom of the round hole (4) of the connecting rotating shaft (1), a tool withdrawal groove (6) is formed in the bottom of the threaded hole (5) of the connecting rotating shaft (1), the thread turning direction of the threaded hole (5) of the connecting rotating shaft (1) is the same as the turning direction of the rotor when the power generation system works, and the connecting rotating shaft (1) is made of a material capable of being welded with the radial flow compressor impeller (2);
the wheel back of the radial flow compressor impeller (2) is opposite to the wheel back of the radial flow turbine impeller (3), the air inlet end of the radial flow compressor impeller (2) is connected with an inner conical surface (8) welded with the rotating shaft (1), the central part of the wheel back of the radial flow compressor impeller (2) is provided with an annular boss (9) welded with the radial flow turbine impeller (3), and the radial flow compressor impeller (2) is made of a material capable of being welded with the connecting rotating shaft (1) and the radial flow turbine impeller (3);
the back of the wheel of the radial-flow turbine impeller (3) is provided with an annular boss (10) welded with the radial-flow compressor impeller (2), the exhaust side end face of the radial-flow turbine impeller (3) is provided with a hexagonal boss (11) used for assembling and clamping, and the radial-flow turbine impeller (3) is made of a high-temperature-resistant material which can be welded with the radial-flow compressor impeller (2).
2. The manufacturing process of the twin dissimilar material composite radial flow impeller according to claim 1, wherein: the method comprises the following steps:
a. determining the size parameters of the integrated connecting part of the connecting rotating shaft (1), the radial flow compressor impeller (2) and the radial flow turbine impeller (3): according to the size parameters of a turbine and a gas compressor of the closed cycle power generation system, the sizes of an inner conical surface (8) and an annular boss (9) for connecting a rotating shaft (1) and an impeller of a radial flow gas compressor and an annular boss (10) for connecting an impeller of the radial flow turbine are determined;
b. determining welding technological parameters of the connecting rotating shaft (1) and the radial flow compressor impeller (2) and the radial flow turbine impeller (3): according to the working state parameters of the closed cycle power generation system, determining welding process parameters of the connecting rotating shaft (1) and the runoff compressor impeller (2) and the runoff turbine impeller (3);
c. respectively processing the integrated connecting parts of the connecting rotating shaft (1), the radial flow compressor impeller (2) and the radial flow turbine impeller (3): according to the size parameters of the connecting rotating shaft (1), the inner conical surface (8) and the annular boss (9) of the radial flow compressor impeller and the annular boss (10) of the radial flow turbine impeller, which are determined in the step a, processing of the connecting rotating shaft (1), the radial flow compressor impeller (2) and the radial flow turbine impeller (3) is carried out;
d. the connecting rotating shaft (1) is integrally connected with the radial flow compressor impeller (2): b, integrally connecting the connecting rotating shaft (1) with the radial flow compressor impeller (2) in a welding mode according to the welding process parameters determined in the step b;
e. the runoff compressor impeller (2) is connected with the runoff turbine impeller (3) in an integrated manner: b, integrally connecting the radial flow compressor impeller (2) and the radial flow turbine impeller (3) by welding the welding process parameters determined in the step b;
f. and (5) processing the composite radial flow impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154661.1A CN112360565A (en) | 2020-10-26 | 2020-10-26 | Twin dissimilar material composite runoff impeller and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154661.1A CN112360565A (en) | 2020-10-26 | 2020-10-26 | Twin dissimilar material composite runoff impeller and manufacturing process thereof |
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| CN112360565A true CN112360565A (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011154661.1A Pending CN112360565A (en) | 2020-10-26 | 2020-10-26 | Twin dissimilar material composite runoff impeller and manufacturing process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837754A (en) * | 2022-03-22 | 2022-08-02 | 北京动力机械研究所 | Turbine blade crown structure with sealing and vibration damping functions |
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| CN202360227U (en) * | 2011-11-01 | 2012-08-01 | 哈尔滨东安发动机（集团）有限公司 | Integral cantilever rotor structure |
| CN103862234A (en) * | 2014-02-13 | 2014-06-18 | 中国北方发动机研究所(天津) | Method and structure for improving strength performance of central part of supercharger turbine |
| CN104074551A (en) * | 2014-06-19 | 2014-10-01 | 中国北方发动机研究所(天津) | Turbine wheel split type structure |
| CN108643979A (en) * | 2018-04-10 | 2018-10-12 | 中国北方发动机研究所(天津) | A kind of supercritical carbon dioxide closed cycle turbine compressor |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008031121A1 (en) * | 2008-05-06 | 2009-11-12 | Daimler Ag | Schweißnietverbindung |
| CN202360227U (en) * | 2011-11-01 | 2012-08-01 | 哈尔滨东安发动机（集团）有限公司 | Integral cantilever rotor structure |
| CN103862234A (en) * | 2014-02-13 | 2014-06-18 | 中国北方发动机研究所(天津) | Method and structure for improving strength performance of central part of supercharger turbine |
| CN104074551A (en) * | 2014-06-19 | 2014-10-01 | 中国北方发动机研究所(天津) | Turbine wheel split type structure |
| CN108643979A (en) * | 2018-04-10 | 2018-10-12 | 中国北方发动机研究所(天津) | A kind of supercritical carbon dioxide closed cycle turbine compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837754A (en) * | 2022-03-22 | 2022-08-02 | 北京动力机械研究所 | Turbine blade crown structure with sealing and vibration damping functions |
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Application publication date: 20210212 |