CN111456965B - Centrifugal axial flow turbine and novel jet engine mode and operation method - Google Patents

Centrifugal axial flow turbine and novel jet engine mode and operation method Download PDF

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CN111456965B
CN111456965B CN202010296964.0A CN202010296964A CN111456965B CN 111456965 B CN111456965 B CN 111456965B CN 202010296964 A CN202010296964 A CN 202010296964A CN 111456965 B CN111456965 B CN 111456965B
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outflow
mass flow
inflow
impeller
flow
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CN111456965A (en
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李伟
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/14Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/26Starting; Ignition
    • F02C7/268Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K9/00Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K9/00Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/95Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by starting or ignition means or arrangements

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A novel axial-flow centrifugal type through turbojet engine is characterized in that: the device consists of a front single-chip mass flow surface or double-surface mass flow surface through vane wheel, a passive through vane wheel set, a cooling system, a combustion chamber and an active through turbine set component which are connected with each other, and are coaxially connected with each other in front and back or integrally connected with each other; the whole engine is formed by combining multiple parts to be coaxially connected with each other or integrally connected or printed and manufactured without a shaft, the whole engine is a whole, and the engine is driven to rotate by an electric drive mode, and a magnetic field and an electric field are applied to the whole engine, so that the electric drive rotation mode is realized. The invention combines the advantages of a centrifugal turbine and an axial flow turbine engine, has greater propelling force, is also suitable for rocket engines, and has huge optimization space and development potential. In the future, a main engine and an auxiliary engine can be designed, and an aerospace aircraft engine system with a space flight and aviation mode and a mutual standby mode can be designed.

Description

Centrifugal axial flow turbine and novel jet engine mode and operation method
Technical Field
The invention relates to a jet engine, in particular to a centrifugal axial flow turbine engine mode and an operation method thereof.
Background
At present, nearly 100 percent of civil aviation and military aviation are axial-flow turbojet engines, and the core part of the existing rocket engine is a centrifugal turbine pump, and the two technologies are derived from a centrifugal compressor and an axial-flow compressor technology system.
Space exploration becomes the mainstream of world development nowadays, and space exploration firstly needs powerful engines, and big aviation airplanes also need powerful jet engines. The existing axial-flow compressor can perform multi-stage compression, but increases the volume, weight and length, and has a complex structure, while the existing centrifugal compressor has excellent single-stage performance but is inconvenient for multi-stage compression. In the future, a compressor rotor and a turbine with higher pressure ratio and higher efficiency are needed, and the defects of the existing centrifugal type and axial type must be overcome.
Disclosure of Invention
The invention relates to a novel compressor rotor, in particular to an axial flow centrifugal rotor. The novel rotor is in a centrifugal working mode, but the flow direction of the fluid is not radial flow but axial flow, and the novel compressor rotor is named as a through vane wheel. And a new axial flow centrifugal turbine evolved from the new rotor, named penetration turbine, the thrust of which approximates the centrifugal force! Thereby obtaining a brand-new aviation jet engine with higher thrust and a novel aerospace axial flow turbine pump. The invention includes a novel rotor blade configuration, mode, and method of operation.
The purpose of the invention is realized as follows:
a brand-new axial flow centrifugal compressor rotor blade penetrating vane wheel is characterized in that: the whole cylinder shape, the main structure is divided into an inflow surface, an outflow surface, a separation sheet and a quality-increasing flow guide inclined plane (called quality flow surface for short); fluid enters into eight cavities which are divided into eight cavities by double-ten partition sheets from a central inlet hole of the inlet surface, and the cavity space is a gradually-changed space from large to small; in the rotation process of the impeller, fluid passes through a gradual change space formed by a mass flow surface and an outflow surface to form positive displacement compression and simultaneously forms centrifugal compression with rotation to achieve dual physical action compression, the fluid slides to an arc-shaped outflow hole of the outflow surface along the inclined surface of the mass flow surface, a plurality of sections of arc-shaped outlets are combined into an annular nozzle, and the fluid is ejected along the axial flow direction; the inflow surface and the mass flow surface are integrated, an inflow hole is formed in the inflow surface, the center of the inflow surface is a shaft hole, the mass flow surface is a solid body, the inner cavity is connected with the outflow surface, the turning part in the outflow hole is an arc surface, and an arc-shaped line-shaped hole is formed in the outflow surface to form the annular nozzle.
The object of the invention is also achieved in that: the mass flow surface and the outflow surface are separated and combined into a novel structure of a dual mass flow surface; the shape of the outflow surface is a trapezoidal cone, the shape of the mass flow surface is a single concave surface or a double-sided concave surface, and the two are combined into a cylindrical impeller; the outflow surface is not connected with the mass flow surface to independently operate, a small mass flow surface is arranged in the outflow surface, fluid enters the cavity in the outflow surface, slides to the outlet along the inner wall of the cavity, and is contracted into a cavity type nozzle; the mass flow surface and the outflow surface are connected in a way that four closed bolt circular holes are arranged on two mutually vertical spacers, penetrate through the whole mass flow surface and the outflow surface and are not communicated with the mass flow surface and the outflow surface, the four bolts and the nuts are fixedly connected, and the bolts, the nuts and the outflow surface and the inflow surface are flush after being fastened; the internal concave body and the external concave body of the double-concave body flow surface are smooth surfaces or spiral lines are carved on the surfaces of the internal concave body and the external concave body, so that the fluid is accelerated and gathered to flow.
The outflow surface and the inflow surface are in the same direction of inlet and outlet, or in the opposite direction of inlet and outlet, and in and out in two directions; in the inlet and outlet reverse structure mode, the outlet surface and the inlet surface are changed into one surface, and the mass flow surface is changed into the other direction; in the two-way inlet and outlet structure mode, fluid can enter in two ways, the inlet flow surface is also the outlet flow surface, the mass flow surface is changed into the central position, and the cross section can also be changed into a parabolic surface.
The mass flow surface is in a three-section stepped distribution form to form three-dimensional continuous cavities, and fluid enters the impeller and is compressed for three times, flows in a Z shape and is combined into an integral three-section compression mode impeller.
A brand-new axial flow centrifugal impeller through vane wheel is characterized in that: the whole body is cylindrical, the structure is divided into an inflow surface, a mass flow surface, an outflow surface and a separation sheet, the inner cavity is oblate when viewed from the side surface, the mass flow surface is changed into a surrounding structure, and the inflow surface and the outflow surface are distributed; fluid enters the eight cavities divided by the arc dividing sheets from the inlet holes of the inflow surface, is compressed to the top ends of the cavities through centrifugal and volumetric dual physical quantities through the addition of peripheral mass flow surfaces during the rotation of the impeller, and is ejected out along the axial flow direction from the circular holes or triangular arc nozzles on the outflow surface, the nozzles are changed into hole points from the previous arc surfaces, and the eight cavities form eight nozzle holes; a progressive circumferential axial flow mode is adopted, the inside of a paddle wheel with an oblate inner cavity is divided into eight cavities by arc spacers, and the numbers from one to eight are calibrated in sequence; fluid enters the vane wheel from the inlet hole of the inflow surface, the junction of the No. two cavities and the inflow hole is a closed arc surface, the fluid enters the vane wheel from the inflow hole, only the No. one cavity is communicated, the fluid enters the vane wheel and is sprayed into the No. two cavities from the opening inside the top end of the No. one cavity after being subjected to space gradual change volume compression and centrifugal force dual compression, then the fluid continues to be compressed in the same way and is sprayed into the No. three cavities from the opening inside the top end of the No. two cavities, thus the fluid is sequentially compressed to the No. eight cavities in a progressive circumferential mode, the fluid is sprayed out from the opening on the outflow surface of the eight cavities along the axial flow direction of the eight cavities from the top end of the eight cavities, the nozzles are changed into single nozzles from multiple nozzles in the past, and the eight cavities are sequentially and continuously compressed and operated by being connected end to end. The fluid completes eight times of compression through the circumference of a vane wheel; the first to eighth cavities have different space sizes, and the number of the cavities is increased or reduced, so that the compression cavity meets the design requirements in compression and various compression requirements under more special conditions and conditions.
Bicyclic and polycyclic modes: the whole body is a flat spherical inner cavity, and the structure is divided into a flow inlet surface, a flow quality surface, a flow outlet surface and a separation sheet. The fluid enters the inside of the impeller from the inflow hole of the inflow surface, then enters eight cavities divided by the separating sheet, and reaches the arc spout of the outflow surface after being compressed in a dual mode, a plurality of sections of arcs form an annular spout which is sprayed out along the axial flow direction, the annular spout is not a single ring but a double ring or a three ring or a multiple ring, and two or more annular spouts are arranged on the outflow surface; the multi-ring nozzle increases the flow and sacrifices a part of centrifugal compression efficiency.
The moon-shaped structure: the whole body is a concave body, the structure is divided into a flow inlet surface, a flow outlet surface and a separation sheet, and the inner cavity is crescent or arc-shaped when viewed from the side. The fluid enters the inner cavity of the moon-shaped vane wheel from the inflow hole of the inflow surface and then enters the cavity divided by the separating sheet, the fluid is compressed along the hemispherical inner wall in a double physical quantity mode and then reaches the arc spout of the outflow surface, and the multiple arcs form an annular spout and spray out the fluid along the axial flow direction of the annular spout; such through-going impellers are also of split construction.
A tandem mode through-flow impeller, comprising: the blade penetrating impeller of the rotor of the novel axial flow centrifugal compressor is connected with each other, the external structure of the impeller is mainly divided into an inflow surface A and an outflow surface B, and the inflow surface A and the outflow surface B are connected with each other: the first is a through vane wheel, the second is a mirror image through vane wheel or a through vane wheel which rotates 180 degrees horizontally, and the sequence of the connection surfaces of the through vane wheels is as follows: ABBAAB. The outflow surface of a first through vane wheel is connected with the outflow surface of a second through vane wheel, and a plurality of through vane wheels are connected to form a turbine set capable of being continuously compressed; the fluid is compressed for many times in the fluid, and continuously flows in the shape of two sections of wave-shaped sine function curve waves; the connection mode of the through impeller is the same as that of the through impeller or connection or mixed connection is carried out according to the characteristics of the through impeller; the compression ratio is improved by increasing the number of stages; the through vane wheels can be connected with each other in an ABABABAB connection mode, 3 or more through vane wheels are connected, the diameter of No. 1 is one circle larger than that of No. 2 and No. 3, the inflow surface is an A surface and an outflow surface is a B surface, the through vane wheels are connected with each other in an ABABAB mode and communicated with each other in inflow holes, and the circular pipe nozzle on the outer wall of No. 1 is extended to form a nozzle with the outer wall of No. 3; the plurality of connections through the impeller are in either an increasing diameter mode or a decreasing diameter mode. Namely No. 1 No. 2 No. 3 to No. N through-out impeller connection, when the diameter is in a mode of gradually increasing: the diameter of No. 2 is equal to that of No. 1, the diameter of No. 3 is larger than that of No. 2, and accordingly the number N is larger than that of No. 3; and when in a mode of gradually decreasing diameter: the diameter of No. 2 is equal to that of No. 1, the diameter of No. 3 is smaller than that of No. 2, and accordingly the diameter of No. N is smaller than that of No. 3; the 3 penetrating vane wheels are connected into a group, and fluid is compressed twice in the group and continuously flows in the shape of two sections of wave-shaped sine function curve waves.
A through-flow turbine, characterized by: the structure main body is a brand new axial flow centrifugal compressor rotor blade penetrating blade wheel, an annular nozzle of the axial flow centrifugal compressor rotor blade penetrating blade wheel is composed of a plurality of sections of arc-shaped nozzles, a plurality of square grids are newly added at the positions of the arc-shaped nozzles and connected with the upper inner wall and the lower inner wall of the nozzle, the arc-shaped nozzles are divided into a plurality of small spaces, and the arc-shaped nozzles of the plurality of sections are combined into the grid annular nozzle. When the surface of the grid sheet forms an angle with the axis, fluid sprayed out of the nozzle impacts the grid sheet to enable the arc nozzle to rotate, and the whole annular nozzle is rotated by the arc nozzles to drive the whole penetration turbine to rotate; the rotation of its turbine is driven in rotation by itself; the grid sheet of the arc spout is one section or a plurality of sections of grid sheets, the same grid sheets are placed on the arc spout according to the plurality of sections to form a plurality of sections of grid sheet annular spouts so as to meet different actual requirements.
A through-flow turbine, characterized by: the main structure body is a brand-new axial flow centrifugal through vane wheel, an annular nozzle of the through vane wheel is changed into 8 or more small hole point type straight pipe nozzles, and a plurality of small hole type straight nozzles are changed into curved pipe nozzles and are ejected along a tangent line parallel to the circumference of the turbine; the mode is an accelerated rotation mode, the reaction force of the ejected fluid accelerates the rotation of the turbine, so that the rotating speed is higher, the centrifugal force is higher, the speed of the ejected fluid is higher, the reaction force acting on the turbine is higher, the ejected fluid and the turbine form a direct ratio variable relation in mutual addition, and a plurality of equidirectional bent pipe nozzles form an active penetrating turbine capable of rotating clockwise or anticlockwise; the bent pipe can also be a variable-diameter pipe nozzle, the diameter of the bent pipe is changed from large to small, and the nozzle is changed into an arc C-shaped nozzle; the diameter of the bent pipe is changed from small to large, and the nozzle is changed into a horn-shaped nozzle; the plurality of small hole point tube type straight nozzles are closed nozzles, the straight nozzle is closed, 1 or more small holes are formed in the side surface of the straight nozzle to form the nozzle, and the closed straight tubes with the same direction of the plurality of side nozzles form a penetrating turbine rotating clockwise or anticlockwise.
A novel axial-flow centrifugal type through turbojet engine is characterized in that: the device consists of a front single-chip mass flow surface or double-surface mass flow surface through vane wheel, a passive through vane wheel set, a cooling system, a combustion chamber and an active through turbine set component which are connected with each other, and are coaxially connected with each other in front and back or integrally connected with each other; other orders of component arrangement are possible; the whole engine is formed by combining multiple parts to be coaxially connected with each other or integrally connected or printed and manufactured without a shaft, the whole engine is a whole, and the engine is driven to rotate by an electric drive mode, and a magnetic field and an electric field are applied to the whole engine, so that the electric drive rotation mode is realized.
A cross-shaped through blade through vane wheel is characterized in that: the penetration blade is a two-way inlet and outlet structure mode of a rotor blade penetration vane wheel of a brand-new axial flow centrifugal compressor, is a variant of a separation type penetration vane wheel, has a structure that a mass flow surface is removed, only a trapezoidal flow surface is reserved, eight internal cavities are changed into four cavities which are opposite in pairs, small-sized mass flow surfaces are arranged in the cavities, and the whole body is changed into a cross-shaped penetration blade; each blade can form various angles with the axis, and the inflow hole expands flow to be a central hole and five inflow holes on each blade; the fluid passes through two spaces of each inflow hole and each blade gap; the fluid entering the inflow hole enters the gradual change space cavity, is subjected to centrifugal force and volume change dual compression, and is sprayed out from an arc-shaped nozzle at the edge of the blade, and the position of the arc-shaped nozzle can be provided with a grid blade; the fluid entering the blade gap is pushed to flow by the outer structural surface of the blade; the number of blades can also be changed into any other number; the penetrating blades are changed into rectangular blades from trapezoidal blades, the inner cavity is changed into triangular gradient space from trapezoidal gradient space, the nozzle is changed into a linear nozzle from an arc-shaped nozzle, and grid blades can be arranged at the position of the nozzle.
The invention has the following beneficial effects: the novel through vane wheel jet engine combines the advantages of a centrifugal jet engine and an axial-flow jet engine, can be compressed in multiple stages, has a positive displacement and centrifugal dual-compression mode, outputs a larger pressure ratio, provides larger propelling force, is suitable for a rocket engine in structure, and has huge optimization space and development potential. In the future, a main engine and an auxiliary engine can be designed, and an aerospace aircraft engine system with a space flight and aviation mode and a mutual standby mode can be designed.
Drawings
FIG. 1 is a schematic side view of the 1.0 structure of the present invention
FIG. 2 is a schematic diagram of a 1.0 structure of the present invention
FIG. 3 is a schematic view of the front view connection of the 1.1 structure of the present invention
FIG. 4 is a schematic side view of the structure of design 1.1 of the present invention
FIG. 5 is a schematic view of the structure of 1.1 dual flow surfaces designed by the present invention
FIG. 6 is a schematic view of the present invention showing 1.2 reverse structure of the inlet and outlet
FIG. 7 is a schematic view of a 1.2 bi-directional access structure designed according to the present invention
FIG. 8 is a schematic view of a 1.3 three-stage compression structure designed by the present invention
FIG. 9 is a schematic structural view of 2.02.1 of the present invention
FIG. 10 is a schematic structural view of design 2.3 of the present invention
FIG. 11 is a schematic structural view of 3.03.1 of the present invention
FIG. 12 is a schematic structural view of design 4.1 of the present invention
FIG. 13 is a schematic structural view of design 5.0 of the present invention
FIG. 14 is a schematic structural view of design 5.1 of the present invention
Detailed Description
1.0 a brand new axial flow centrifugal compressor rotor blade: the whole cylinder shape, the main structure is divided into an inflow surface (1.01), an outflow surface (1.02), a separation sheet (1.03) and a quality-enhancing flow-guiding inclined surface (1.04) (hereinafter referred to as quality flow surface) as shown in figure 1. Fluid enters eight cavities which are divided by a double-ten partition plate in the impeller from the central inflow hole (1.05) of the inflow surface, and the cavity space is gradually changed from large to small. In the rotation process of the impeller, fluid passes through a gradual change space formed by the mass flow surface and the outflow surface to form positive displacement compression and simultaneously forms centrifugal compression with rotation to achieve dual physical action compression, the fluid slides to an arc-shaped outflow hole (1.06) of the outflow surface along the inclined surface of the mass flow surface, the multi-section arc-shaped outlets are combined into an annular nozzle, and the fluid is ejected along the axial flow direction.
The axial flow centrifugal impeller rotor is a brand new type axial flow centrifugal impeller rotor simultaneously provided with a positive displacement type physical quantity compression mode and a centrifugal type physical quantity compression mode. The inflow surface and the mass flow surface are integrated, an inflow hole is formed in the inflow surface, the center of the inflow surface is a shaft hole, the mass flow surface is a solid body, the inner cavity is connected with the outflow surface, the turning part in the outflow hole is an arc surface, and an arc-shaped line-shaped hole is formed in the outflow surface to form the annular nozzle.
The novel compressor rotor is named as a through vane wheel, and the evolved power turbine is named as a through turbine. The number of the inner cavities of the rotor turbine can be changed into any number N according to the actual design requirement.
1.1 or more is an integrated type, and can also be a split type. The mass flow surface (1.11) and the outflow surface (1.12) can be separated, and a novel structure of a dual mass flow surface can be combined. The outflow surface is in the shape of a trapezoidal cone, the mass flow surface is in the shape of a single concave surface or a double-sided concave surface, and the outflow surface and the mass flow surface can be combined into a cylindrical impeller. The outflow surface can also be operated independently without connecting with the mass flow surface, a small mass flow surface (1.13) is arranged in the outflow surface, fluid enters the cavity in the outflow surface, slides to the outlet along the inner wall of the outflow surface, and the nozzle is retracted into the cavity type nozzle. The mass flow surface and the outflow surface are connected in this way, four closed bolt round holes (1.14) are arranged on two mutually vertical spacers, penetrate through the whole mass flow surface and the outflow surface and are not communicated with the mass flow surface and the outflow surface, the four bolts (1.15) and the nut are fixedly connected, and after being fastened, the bolts and the nut are flush with the planes of the outflow surface and the inflow surface. The internal and external concave surfaces of the double-concave body fluid surface (1.16) are smooth surfaces or spiral lines are carved on the surfaces, so that the fluid is accelerated and gathered to flow. In practical use, the mass flow surface can be changed into different materials with different densities and different sizes so as to realize the change of mass size and gravity center and further realize the adjustment of different centrifugal forces. Similarly, the flow surface can be changed, and the two can be matched to meet the requirements of various sizes, equipment and environments and various requirements for precise and fine output fine adjustment.
More than 1.2 can be in the same direction of inlet and outlet, or in the opposite direction of inlet and outlet, or in two directions of inlet and outlet. In the in-out reverse structure mode, the flow-out surface and the flow-in surface are changed into one surface, and the mass flow surface is changed into the other direction.
In the two-way inlet and outlet structure mode, fluid can enter in two directions, the inlet flow surface is also the outlet flow surface, the mass flow surface is changed into the central position (1.27), and the cross section shape can be changed into the parabolic surface (1.28).
1.3 also a stepped three-stage compression mode. As shown in the figure, the mass flow surface is changed into a three-section stepped (1.39) distribution form to form three-dimensional continuous cavities, fluid enters the impeller and is compressed for three times, and the fluid flows in a Z shape to form an integral three-section compression mode impeller.
2.0 type through vane wheel, a new axial flow centrifugal vane wheel. The whole body is cylindrical, the structure is divided into an inflow surface (2.01), a mass flow surface (2.04), an outflow surface (2.02) and a separation sheet (2.03), the inner cavity is oblate from the side, the mass flow surface is of an enclosed structure, and the inflow surface and the outflow surface are distributed. Fluid enters eight cavities (2.08) divided by the arc dividing sheets from the inlet hole (2.05) of the inlet surface, is compressed to the top ends of the cavities through centrifugal and volumetric dual physical quantities through the addition of the peripheral mass flow surface in the rotation of the page, is ejected out along the axial flow direction from the circular hole (2.06) or the triangular arc hole (2.07) on the outlet surface, the ejection port is changed from the previous arc surface into a hole point, and eight ejection holes are formed in the eight cavities.
2.1 may also be a progressive circumferential axial flow pattern. The impeller with the oblate inner cavity is divided into eight cavities by arc spacers, and the eight cavities are sequentially calibrated to be one to eight (001-008). Fluid enters the vane wheel from the inlet hole of the inflow surface, the junction of the No. two cavities and the inflow hole is a closed arc surface, the fluid enters the vane wheel from the inflow hole, only the No. one cavity is communicated, and after the fluid enters the vane wheel and is subjected to double compression of space gradual change volume compression and centrifugal force, the fluid is sprayed into the No. two cavity from the inside opening (2.09) at the top end of the No. one cavity, then the No. two cavity continues to be compressed in the same way, and is sprayed into the No. three cavity from the inside opening at the top end of the No. two cavity, so that the fluid is sequentially compressed to the No. eight cavity in a progressive circumferential manner, and is sprayed out from the top end of the No. eight cavity along the axial flow direction from the opening (2.010) on the outflow surface of the eight cavity, the nozzles are changed from the previous multiple nozzles into a single nozzle, and the eight cavities are sequentially and continuously compressed and operated in a sequential manner that the heads and the tails of the eight cavities are connected with each other. The fluid completes eight compressions over one impeller circumference.
In actual operation, different space sizes of the first-eighth cavities can be designed, and the number of the cavities is increased or reduced, so that the compression-related design requirements and various compression requirements under more special conditions and conditions are met.
2.2 bicyclic and polycyclic modes. The whole body is a flat spherical inner cavity, and the structure is divided into a flow inlet surface, a flow quality surface, a flow outlet surface and a separation sheet. The fluid enters the inside of the impeller from the inflow hole of the inflow surface, then enters eight cavities divided by the separating sheet, and reaches the arc spout of the outflow surface after being compressed in a dual mode, a plurality of sections of arcs form an annular spout which is sprayed out along the axial flow direction, the annular spout is not a single ring, but a double ring, or a three ring and a multiple ring, and two or more annular spouts are arranged on the outflow surface. The multi-ring nozzle increases the flow and sacrifices a part of centrifugal compression efficiency.
The mode is suitable for scenes and equipment with large flow or used on centrifugal machine separation equipment.
2.3 moon-shaped structure. The whole body is a concave body, the structure is divided into an inflow surface, a mass flow surface (2.34), an outflow surface and a separation sheet, and the inner cavity is crescent (2.31) or arc-shaped when viewed from the side. The fluid enters the inner cavity of the moon-shaped vane wheel from the inflow hole of the inflow surface and then enters the cavity divided by the separating sheet, the fluid is compressed along the hemispherical inner wall in a double physical quantity mode and then reaches the arc spout of the outflow surface, and the multiple sections of arcs form an annular spout and spray out the fluid along the axial flow direction of the annular spout.
The penetrating impeller in 2.0 can also be a separated structure, and all the design structures and elements of the penetrating impeller can be matched with the content of 1.0 for use.
The novel through vane wheel is widely applicable to scenes such as the prior compressor, a pump, a ship propeller and the like, can be changed into a novel turbine pump of an aerospace engine after being erected for use, and has wide application and multi-environment scene application.
3.0 through impeller tandem mode
When a plurality of 1.0 penetrating vane wheels are connected with each other, the vane wheel outer structure is mainly divided into an inflow surface A and an outflow surface B which are connected with each other in such a way that: the first is a 1.0 through vane wheel, the second is a mirror image 1.0 through vane wheel or a 1.0 through vane wheel which rotates 180 ° horizontally, and the sequence of the connection surfaces is as follows: ABBAAB. The outflow surface of the first through vane wheel is connected with the outflow surface of the second through vane wheel, and the connection of a plurality of through vane wheels forms a turbine set capable of being compressed continuously.
The fluid is compressed for a plurality of times in the fluid, and flows continuously in the shape of two-section wave-shaped sine function curve waves.
Other types of through-going flap wheel connection modes are the same or connected according to their characteristics. Hybrid connections are also possible.
The novel mode vane wheel can improve the compression ratio by increasing the number of stages.
3.1 the connection to each other through the impeller can also be an ABABABAB connection. 3 or more than 1.0 penetrating vane wheels are connected, the diameter of No. 1 (3.11) is one circle larger than that of No. 2 (3.12) and No. 3 (3.13), the inflow surface is an A surface and the outflow surface is a B surface, the A surface and the B surface are connected in an ABABAB mode, the A surface and the B surface are communicated with each other, and the circular pipe nozzle of the No. 1 outer wall is extended to form a nozzle with the No. 3 outer pipe. This type is suitable for large flow scenarios.
The 3.2 multiple through-the-wheel 3.0 connection can also be in a diameter increasing mode or in a diameter decreasing mode. Namely No. 1 No. 2 No. 3 to No. N through-out impeller connection, when the diameter is in a mode of gradually increasing: the diameter of No. 2 is equal to that of No. 1, the diameter of No. 3 is larger than that of No. 2, and accordingly the number N is larger than that of No. 3; and when in a mode of gradually decreasing diameter: diameter No. 2 is equal to diameter No. 1, diameter No. 3 is less than diameter No. 2, and accordingly number N is less than number 3.
The 3 penetrating vane wheels are connected into a group, and fluid is compressed twice in the group and continuously flows in the shape of two sections of wave-shaped sine function curve waves.
4.0 through turbine and through turbojet.
Through the turbine (4.11). The structure main body is a penetrating vane wheel 1.0, the annular nozzle is composed of a plurality of sections of arc-shaped nozzles, a plurality of square grid pieces (4.12) are additionally arranged at the position of the arc-shaped nozzles and are connected with the upper inner wall and the lower inner wall of the nozzle, the arc-shaped nozzles are divided into a plurality of small spaces, and the plurality of sections of arc-shaped nozzles are combined into the grid-shaped annular nozzle (4.16). When the lattice piece surface forms an angle with the axis, the fluid sprayed out of the nozzle impacts the lattice piece to enable the arc nozzle to rotate, and the whole annular nozzle is rotated by a plurality of arc nozzles to drive the whole penetration turbine to rotate.
This is a new power turbine-a through turbine, whose rotation can be driven by itself. The larger the internal fluid pressure is, the larger the nozzle impact force is, the faster the rotation is, the better the centrifugal compression efficiency is, the direct proportional relation between the internal pressure and the rotating speed is realized, the mutual addition is realized, and the overall efficiency is higher.
Only one section above the check of pitch arc spout, can also be the multistage check, same check are placed at pitch arc spout according to this multistage, for example 2 sections, 3 sections, and the multistage etc. forms 2 sections, 3 sections, and multistage check annular spout is in order to satisfy different actual need.
When the 2.0 type penetrating vane wheel is changed into a penetrating turbine from an annular nozzle to 8 or more small hole point type straight pipe nozzles, the small hole type straight nozzles are changed into curved pipe nozzles, and the small hole type straight nozzles are ejected parallel to the tangent line of the circumference of the turbine. The mode is an accelerating rotation mode, the rotation of the turbine is accelerated by the counterforce of the sprayed fluid, the rotating speed is higher, the centrifugal force is larger, the speed of the sprayed fluid is higher, the counterforce acting on the turbine is larger, the counterforce and the turbine form a direct ratio variable relation in mutual addition, and the plurality of equidirectional bent pipe nozzles form an active penetrating turbine capable of rotating clockwise or anticlockwise. The bent pipe can also be a variable-diameter pipe nozzle, the diameter of the bent pipe is reduced from large to small, and the nozzle is changed into an arc C-shaped nozzle. The diameter of the bent pipe is changed from small to large, and the nozzle is changed into a horn-shaped nozzle.
The small hole point pipe type direct injection port can also be a closed type injection port, the straight pipe injection port is closed, 1 or more small holes are formed in the side surface of the straight pipe injection port to form the injection port, and the closed straight pipes with the same direction of the plurality of side surface injection ports form a penetrating turbine rotating clockwise or anticlockwise.
4.1 through turbojet and method of operation
The novel axial-flow centrifugal type through turbine jet engine structure is characterized in that a front single-sheet mass flow surface or double-surface mass flow surface penetrates through a vane wheel (4.13); the passive through page wheel sets are connected with each other; a cooling system; a combustion chamber; the active penetration turbine group and other parts are mainly formed, and are coaxially connected or integrally connected with each other in a front-back coaxial manner, and the arrangement of the parts can be in other orders.
Fluid enters the series-connected penetrating vane wheel set through the preposed mass flow surface to be compressed, cooled and compressed, the compressed fluid enters the combustion chamber to be ignited and combusted to become high-pressure fluid, the high-pressure fluid enters the 4.0 active penetrating turbine and is ejected from a nozzle of the active penetrating turbine at high speed through the vanes to drive the whole to rotate, and the working process is completed.
The combustion chamber can also be at the nozzle position of 4.0 penetrating away from the turbine, and fluid enters the combustion chamber to be ignited and combusted after entering the nozzle position through centrifugal compression and then is sprayed out of the grid blades to drive the whole body to rotate so as to complete the working process.
The whole engine can be combined and coaxially connected with each other by multiple parts, or can be integrally connected without a shaft or manufactured and printed, and the whole engine becomes a whole body which can be regarded as a turbine rotor or a part to operate. In this case, the engine can be operated in a rotary manner by electric driving. The whole engine becomes a rotor, and becomes an electric driving rotation mode as long as a magnetic field and an electric field are applied.
5.0 Cross (or other polygonal) through vanes
The penetration blade is a variant of a 1.1 separation type penetration vane wheel, the mass flow surface is removed, only the trapezoidal flow surface is reserved, the internal cavities are changed into four cavities which are opposite in pairs from eight cavities, small-sized mass flow surfaces are arranged in the cavities, and the whole body is changed into a cross-shaped penetration blade. Each blade can form various angles with the axis, and the inflow hole expands to form a central hole and five inflow holes (5.05) on each blade. The fluid passes through both the spaces of each inflow hole and the vane gap.
The fluid entering the inflow hole enters the gradual change space cavity, is sprayed out from an arc-shaped nozzle (5.06) at the edge of the blade through centrifugal force and volume change double compression, and the position of the arc-shaped nozzle can be provided with a grid blade. And the fluid entering the blade gap is pushed to flow by the outer structural surface of the blade. The number of blades may also be varied to any other number.
5.1 it becomes rectangle leaf to run through the leaf by trapezoidal leaf, and the internal cavity becomes triangle-shaped gradual change space (5.11) by trapezoidal gradual change space, and the spout becomes inline spout (5.17) by the camber spout, and the spout position also can set up the check leaf.
All the modes and structures can be combined and replaced with each other to become a new impeller, turbine and other technologies so as to meet different design requirements.
The advantages of the novel through vane wheel are as follows:
the penetrating impeller is a brand-new centrifugal axial-flow closed turbine rotor, fluid enters the impeller, is centrifugally compressed and then runs in an axial flow mode.
The through vane wheel is a novel turbine rotor which is provided with a centrifugal type compression mode, a positive displacement type compression mode and a double physical quantity compression mode.
The number of stages can be increased through the impeller to improve the compression ratio, higher compression capacity can be provided, and higher compression efficiency can be realized.
The efficiency is higher, more energy and energy are saved, and the output is stronger.
The novel through vane wheel is universal for all equipment and applicable scenes of current fans, compressors, pumps, engines and the like.
The advantages of the novel through turbojet:
the first centrifugal axial jet engine.
The first is a jet engine with dual physical mass (centrifugal and volumetric) modes.
Higher pressure ratio, higher engine thrust! The output thrust and pressure are in direct proportion to the sum of the rotating speeds.
The thrust of the engine ≈ centrifugal force of the engine.
The American F22 fighter uses a F119 engine manufactured by Puhui, and the thrust of the engine is 15-17 tons. The latest F35 warplane also uses a F135 engine manufactured by plutelly, and the thrust of the engine is 18-22 tons. This is the thrust parameter of the most advanced engines in the world today. And the rotating speed of the rotor is tens of thousands of revolutions per minute, and the centrifugal force at the position of the blade tip of the engine is about 40 tons. Theoretical derivation: under the condition of the same size, the same weight and the same rotating speed of the novel penetration turbine, the centrifugal force at the nozzle of the novel penetration turbine jet engine can be 40 tons, and the thrust of the novel penetration turbine jet engine is also 40 tons! Is one time larger than the most advanced jet engine! And there is room for improvement.
Can be developed into the engine of a novel aerospace vehicle in the future.
The novel through turbine engine is also suitable for various land vehicles; various ships and submarines on the water surface and under the water; industrial plant gas turbines, and the like.
The new engine also adapts to the more advanced, larger and more limited variety of equipment that will be required in the future to meet a variety of environmental usage scenarios.
A novel turbopump of a space rocket engine. The through vane wheel is erected for use, so that the novel rocket engine turbopump is formed, the rocket engine turbopump can be driven by electric drive, the volume and the connection structure can be greatly simplified, and fuel and oxygen are respectively independently configured without a turning structure and directly reach a combustion chamber for combustion and eruption.
In the future, the engine can also be used as an aerospace integrated aircraft engine.
The novel through turbojet engine combines the advantages of a centrifugal turbine and the advantages of an axial turbine engine, has greater propelling force, is suitable for rocket engines in structure, and has huge optimization space and development potential. In the future, a main engine and an auxiliary engine can be designed, and an aerospace aircraft engine system with a space flight and aviation mode and a mutual standby mode can be designed.

Claims (6)

1. The utility model provides an axial flow centrifugal compressor rotor blade passes through from impeller which characterized in that: the whole cylinder shape is realized, and the main structure is divided into an inflow surface, an outflow surface, a separation sheet and a mass flow surface; fluid enters into eight cavities which are divided into eight cavities by double-ten partition sheets from a central inlet hole of the inlet surface, and the cavity space is a gradually-changed space from large to small; in the rotation process of the impeller, fluid passes through a gradual change space formed by the mass flow surface and the outflow surface to form positive displacement compression and centrifugal compression formed by rotation, dual physical action compression is achieved, the fluid slides to the arc-shaped outflow hole of the outflow surface along the inclined surface of the mass flow surface, the multi-section arc-shaped outlets are combined into an annular nozzle, and the fluid is ejected along the axial flow direction; the inflow surface and the mass flow surface are integrated, an inflow hole is formed in the inflow surface, the center of the inflow surface is a shaft hole, the mass flow surface is a solid body, the inner cavity is connected with the outflow surface, the turning part in the outflow hole is an arc surface, and an arc-shaped line-shaped hole is formed in the outflow surface to form the annular nozzle.
2. The axial flow centrifugal compressor rotor blade through impeller of claim 1, wherein: the mass flow surface and the outflow surface are separated and combined into a novel structure of a dual mass flow surface; the shape of the outflow surface is a trapezoidal cone, the shape of the mass flow surface is a single concave surface or a double-sided concave surface, and the two are combined into a cylindrical impeller; the outflow surface is not connected with the mass flow surface to independently operate, a small-sized mass flow surface is arranged in the outflow surface, fluid enters the cavity in the outflow surface and slides to the outlet along the inner wall of the cavity, and the nozzle is retracted into the cavity type nozzle; the mass flow surface and the outflow surface are connected in a way that four closed bolt circular holes are arranged on two mutually vertical spacers, penetrate through the whole mass flow surface and the outflow surface and are not communicated with the mass flow surface and the outflow surface, the four bolts and the nuts are fixedly connected, and the bolts, the nuts and the outflow surface and the inflow surface are flush after being fastened; the internal concave body and the external concave body of the double-concave body flow surface are smooth surfaces or spiral lines are carved on the surfaces of the internal concave body and the external concave body, so that the fluid is accelerated and gathered to flow.
3. The axial flow centrifugal compressor rotor blade through impeller according to claims 1 and 2, characterized in that: the outflow surface and the inflow surface are in three structural modes of in-out homodromous, in-out reverse or bidirectional in-out; in the inlet and outlet reverse structure mode, the outlet surface and the inlet surface are changed into one surface, and the mass flow surface is changed into the other direction; in the two-way inlet and outlet structure mode, fluid can enter in two ways, the inlet flow surface is also the outlet flow surface, the mass flow surface becomes the central position, and the cross section can also become a parabolic surface;
the mass flow surface is in a three-section stepped distribution form to form three-dimensional continuous cavities, and fluid enters the impeller and is compressed for three times, flows in a Z shape and is combined into an integral three-section compression mode impeller.
4. The utility model provides an axial flow is to centrifugal impeller and is run through from impeller which characterized in that: the whole body is cylindrical, the structure is divided into an inflow surface, a mass flow surface, an outflow surface and a separation sheet, the inner cavity is oblate when viewed from the side surface, the mass flow surface is changed into a surrounding structure, and the inflow surface and the outflow surface are distributed; fluid enters the eight cavities divided by the arc dividing sheets from the inlet holes of the inflow surface, is compressed to the top ends of the cavities through centrifugal and volumetric dual physical quantities through the addition of the peripheral mass flow surfaces during the rotation of the impeller, is sprayed out from the circular holes or triangular arc holes on the outflow surface along the axial flow direction, the nozzles are changed into hole points from the previous arc surfaces, and the eight cavities form eight spray holes.
5. The utility model provides an axial flow is to centrifugal impeller and is run through from impeller which characterized in that: the whole body is cylindrical, the structure is divided into an inflow surface, a mass flow surface, an outflow surface and a separation sheet, the inner cavity is oblate when viewed from the side surface, the mass flow surface is changed into a surrounding structure, and the inflow surface and the outflow surface are distributed; the inner cavity structure adopts a progressive circumferential axial flow mode, the inside of a paddle wheel with an oblate inner cavity is divided into eight cavities by arc spacers, and the eight cavities are sequentially calibrated from one to eight; fluid enters the vane wheel from the inlet hole of the inflow surface, the junction of the No. two cavity bodies and the inflow hole is a closed cambered surface, the fluid enters the vane wheel from the inflow hole, only the No. one cavity body is communicated, enters the vane wheel and is subjected to double compression of space gradual change volume compression and centrifugal force, then is sprayed into the No. two cavity bodies from the opening in the top end of the No. one cavity body, then the No. two cavity bodies continue to be compressed in the same way, and is sprayed into the No. three cavity bodies from the opening in the top end of the No. two cavity bodies, so that the fluid is sequentially compressed to the No. eight cavity bodies in a progressive circumferential manner, and is sprayed out from the opening in the outflow surface of the eight cavity bodies along the axial flow direction of the eight cavity bodies from the previous multiple nozzles to single nozzles, and the eight cavity bodies are sequentially and continuously compressed and operated by mutually connecting the head and the tail; the fluid completes eight times of compression through the circumference of a vane wheel; the first to eighth cavities have different space sizes, and the number of the cavities is increased or reduced, so that the first to eighth cavities meet the design requirements in compression and various compression requirements under more conditions.
6. The axial flow centrifugal impeller through impeller of claim 4 or 5, wherein: bicyclic and polycyclic modes: the whole body is a flat spherical inner cavity, and the structure is divided into a flow inlet surface, a flow quality surface, a flow outlet surface and a separation sheet; the fluid enters the inside of the impeller from the inflow hole of the inflow surface, then enters eight cavities divided by the separating sheet, and reaches the arc spout of the outflow surface after being compressed in a dual mode, a plurality of sections of arcs form an annular spout which is ejected along the axial flow direction of the annular spout, the annular spout is not a single ring but a double ring or a three ring or a multiple ring, and two or more annular spouts are arranged on the outflow surface; the multi-ring nozzle increases the flow and sacrifices a part of centrifugal compression efficiency;
moon-shaped structural mode: the whole body is a concave body, the structure is divided into a flow inlet surface, a flow outlet surface and a separation sheet, and an inner cavity is crescent or arc-shaped when viewed from the side; the fluid enters the inner cavity of the moon-shaped vane wheel from the inflow hole of the inflow surface and then enters the cavity divided by the separating sheet, the fluid is compressed along the hemispherical inner wall in a double physical quantity mode and then reaches the arc spout of the outflow surface, and the multiple arcs form an annular spout and spout the fluid along the axial flow direction of the annular spout; such through-going impellers are also of split construction.
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