CN105626579A - Hollow-shaft ram-rotor based on shock wave compression technology - Google Patents
Hollow-shaft ram-rotor based on shock wave compression technology Download PDFInfo
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- CN105626579A CN105626579A CN201610124544.8A CN201610124544A CN105626579A CN 105626579 A CN105626579 A CN 105626579A CN 201610124544 A CN201610124544 A CN 201610124544A CN 105626579 A CN105626579 A CN 105626579A
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- compression
- air
- quill shaft
- shock wave
- spiral
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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
- F04D29/26—Rotors specially for elastic fluids
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a hollow-shaft ram-rotor based on the shock wave compression technology. The hollow-shaft ram-rotor comprises a hollow shaft, a wheel disc assembly assembled with the hollow shaft in a synchronously rotating mode and an outer case arranged outside the wheel disc assembly in a covering mode, wherein a plurality of spiral separating plates are evenly distributed on the surface of the outer wall of the outer edge of a wheel disc of the wheel disc assembly, and the installation angles of all the spiral separating plates are identical; an air inlet flow channel is formed by a gap between every two adjacent spiral separating plates, and each air inlet flow channel is provided with an air flow compression section, a throat separating section and a triangular outlet extension section which are sequentially arranged from the inlet end to the outlet end. Each air flow compression section is a compression air channel with the radial gap being gradually reduced; each throat separating section is an equal-area passage with the radial gap kept unchanged; each triangular outlet extension section is an air channel with the radial gap kept unchanged, and the interior of the peripheral cylindrical surface of each triangular outlet extension section is triangular. According to the hollow-shaft ram-rotor adopting the technical scheme, fluid is compressed by a curved shock wave system, the supercharge ratio is high, and the hollow-shaft ram-rotor is simple and compact in overall structure and high in reliability.
Description
Technical field
The present invention relates to internal combustion turbine field, in particular to a kind of ram-compressed rotor based on ultra-combustion ramjet engine charge runner compression technology being applied in various internal combustion turbine.
Background technology
Compression system and pneumatic plant are one of three big parts of internal combustion turbine, and its effect is compressed by the air-flow entering engine, to obtain the air of suitable temp and pressure. The size of pneumatic plant pressure ratio and the height of manometric efficiency will directly decide cycle efficiency and the power of internal combustion turbine, and its volume and weight affects the power weight ratio of internal combustion turbine to a great extent. At present, conventional in internal combustion turbine air-flow compression mode mainly contains axial-flow type compression, centrifugal compression and mixing compression. Axial-flow type compression single-stage compression efficiency height, be widely used, technology maturation, but its single-stage pressure ratio low, reach high pressure ratio and need stage compression, compression system volume and weight is big, total compression degradation in efficiency; Centrifugal compression single-stage pressure ratio is higher, Performance comparision is stablized, but its efficiency is lower. Above-mentioned two kinds of air-flows compression mode can also be mixed into enforcement use, but the power weight ratio improving internal combustion turbine does not have essence impact.
Summary of the invention
The present invention is directed to above-mentioned technical problem, propose a kind of based on ultra-combustion ramjet engine charge runner compress technology ram-compressed rotor, it has rate of supercharging height, manometric efficiency height, simple and compact for structure, volume is little, weight is light, low cost of manufacture, easy accessibility, be easy to maintenance, reliability advantages of higher.
For reaching above object, it is achieved through the following technical solutions:
Based on the quill shaft rotary punching compression rotor of shock wave compression technology, comprising: quill shaft, it is placed in the outer casing of wheel assemblies outside with the wheel assemblies of quill shaft synchronous axial system assembling and cover;
Wherein, the wheel disc outer rim outer wall surface of wheel assemblies is evenly distributed with multiple spiral septum, and the installation angle of each spiral septum is identical;
Often gap between adjacent two spiral septums forms an air inlet runner, and every bar air inlet runner causes exit end by inlet end and is disposed with air-flow compression section, throat's distance piece and triangular-shaped outlet extension;
Wherein, air-flow compression section is the compression air flue that radius clearance reduces gradually; Throat's distance piece is the area passage such as grade that radius clearance remains unchanged; Triangular-shaped outlet extension is that radius clearance remains unchanged, and is the air flue of trilateral in circumference cylinder;
As preferred structure, air-flow compression section and throat's distance piece are positioned at the overlapping region of adjacent two spiral septums.
As preferred structure, wheel assemblies comprises: sleeve, web and wheel hub; Sleeve and the assembling of quill shaft synchronous axial system, wheel hub is fixing by web and the assembling of sleeve synchronous axial system; Wherein, wheel disc outer rim is wheel hub peripheral outer wall.
As preferred structure, sleeve and hub spindle are axial rotation sealing position to both sides of the edge, and seal form adopts the sealing of comb tooth or brush seal.
As preferred structure, it is provided with boundary layer on air-flow compression section or in throat's distance piece and lets out except device, boundary layer blow down or suction unit.
As preferred structure, the total length of air-flow compression section and throat's distance piece is less than or equal to the length of adjacent two spiral septum overlaps.
As preferred structure, the clearance control between spiral septum and outer casing adopts initiatively or passive clearance control technology as required.
As preferred structure, the inwall of outer casing is coated with last layer and easily grinds coating, the spill losses of wear-resisting material to control between outer casing and spiral septum top it is accompanied by spiral septum top, the air inlet runner of integral shroud with closed compression rotor is set at the top of spiral septum, between integral shroud and outer casing, leaves gap as required.
Adopt the present invention of technique scheme, realize with Aerodynamics by following technical solution:
During ultra-combustion ramjet engine operation, its air inlet runner has undertaken the effect making to carry out at a high speed gas body deceleration supercharging, and the main operational principle of this air inlet runner be by aircraft high-speed flight time, air and aircraft keep higher speed of relative movement, this speed is often times over the velocity of sound, after supersonic flow enters air inlet runner, through air-flow compression section, turn back in direction, thus produce many roads oblique shockwave or make high velocity air reduce to low supersonic by isoentropic compression, its pressure and temperature raise, after throat's distance piece steady flow, ultrasonic gas after discharging compression from air inlet runner outlet, thus gas kinetic energy is converted into pressure potential. by the shape of appropriate design air inlet runner air-flow compression section, air inlet runner just can be made to keep good performance.
The compression technology of aloof punching engine air inlet runner and the designing technique of tradition axial-flow type and centrifugal pneumatic plant have been merged in the present invention, its principle of work is: when compression rotor starts to rotate, and the air-flow of air inlet end outside is inhaled in the air inlet runner of compression rotor wheel assemblies thereupon. Due to compression rotor high speed rotating, the relative wheel assemblies speed of the air-flow of wheel disc outer rim reaches supersonic velocity condition, air-flow is through air-flow compression section, turn back in direction, air inlet runner occurs curve multishock, making entrance reduce to relative wheel disc low supersonic relative to high velocity air, its pressure and temperature raise; After throat's distance piece steady flow, the relative wheel disc ultrasonic gas after discharging compression from compression rotor outlet, thus gas kinetic energy is converted into pressure potential. Export speed of relative movement in certain supersonic range by conservative control compression rotor, after synthesizing with wheel disc circumferential speed, outlet absolute velocity can be made to be subsonic velocity, increase exit flow and circumference angle simultaneously. Owing to fluid is compressed by curve multishock, compression rotor has higher single-stage pressure ratio (5��15), and there is not plane shock and stronger shockwave boundary layer interaction in runner, and in compression rotor runner, flowing is stable, losing very little, thus compression rotor has again higher efficiency.
To sum up, the useful effect of the present invention is as follows: adopt the shock wave compression technology in supersonic speed air inlet road, rate of supercharging height, manometric efficiency height; Employing quill shaft designs, and can install other equipment in quill shaft, makes that compression rotor one-piece construction is simply compact, volume is little, weight is light; Wheel disc and quill shaft are made of one, or are connected with quill shaft by connecting key or bearing, easy accessibility, be easy to safeguard, reliability height.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to the technique means of the present invention can be better understood, and can be implemented according to the content of specification sheets, and in order to the above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by better embodiment, and coordinate accompanying drawing, it is described in detail as follows.
Accompanying drawing explanation
The present invention is totally 4 width accompanying drawing, wherein:
Fig. 1 is the one-piece construction schematic diagram of the present invention.
Fig. 2 is the wheel assemblies part-structure schematic diagram of the present invention.
Fig. 3 is the runner transformation schematic diagram developing into compression rotor from aloof ramjet engine air inlet of the present invention.
The web structure that Fig. 4 is the present invention adopts structural representation when taking turns and spoke.
In figure: 11, quill shaft, 12, axial rotation sealing position, 13, wheel disc outer rim, 14, spiral septum, 15, air-flow compression section, 16, throat's distance piece, 17, angle shape outlet extension, 18, wheel hub, 19, sleeve, 20, outer casing, 21, web.
Embodiment
The quill shaft rotary punching compression rotor based on shock wave compression technology as depicted in figs. 1 and 2, comprising: quill shaft 11, is placed in the outer casing 20 of wheel assemblies outside with the wheel assemblies of quill shaft 11 synchronous axial system assembling and cover;
Wherein, wheel disc outer rim 13 outer wall surface of wheel assemblies is evenly distributed with multiple spiral septum 14, and the installation angle of each spiral septum 14 is identical;
Often gap between adjacent two spiral septums 14 forms an air inlet runner, and every bar air inlet runner causes exit end by inlet end and is disposed with air-flow compression section 15, throat's distance piece 16 and triangular-shaped outlet extension 17;
Wherein, the compression air flue that air-flow compression section 15 reduces gradually for radius clearance; Throat's distance piece 16 waits area passage for what radius clearance remained unchanged; Triangular-shaped outlet extension 17 remains unchanged for radius clearance, and is the air flue of trilateral in circumference cylinder;
As preferred structure, air-flow compression section 15 and throat's distance piece 16 are positioned at the overlapping region of adjacent two spiral septums 14.
As preferred structure, wheel assemblies comprises: sleeve 19, web 21 and wheel hub 18; Sleeve 19 and the assembling of quill shaft 11 synchronous axial system, wheel hub 18 is fixing with the assembling of sleeve 19 synchronous axial system by web 21; Wherein, wheel disc outer rim 13 is wheel hub 18 peripheral outer wall; Wherein, web 21 can adopt spoke structure, as shown in Figure 4.
As preferred structure, sleeve 19 and the axial both sides of the edge of wheel hub 18 are axial rotation sealing position 12, and seal form adopts the sealing of comb tooth or brush seal.
As preferred structure, it is provided with boundary layer on air-flow compression section 15 or in throat's distance piece 16 and lets out except device, boundary layer blow down or suction unit.
As preferred structure, the total length of air-flow compression section 15 and throat's distance piece 16 is less than or equal to the length of adjacent two spiral septum 14 overlaps.
As preferred structure, the clearance control between spiral septum 14 and outer casing 20 adopts initiatively or passive clearance control technology as required.
As preferred structure, the inwall of outer casing 20 is coated with last layer and easily grinds coating, the spill losses of wear-resisting material to control between outer casing 20 and spiral septum 14 top it is accompanied by spiral septum 14 top, the air inlet runner of integral shroud with closed compression rotor is set at the top of spiral septum 14, between integral shroud and outer casing 20, leaves gap as required.
Adopting the present invention of technique scheme, aerodynamics basic principle is, as shown in Fig. 3 (a):
During ultra-combustion ramjet engine operation, its air inlet runner has undertaken the effect making to carry out at a high speed gas body deceleration supercharging, and the main operational principle of this air inlet runner be by aircraft high-speed flight time, air and aircraft keep higher speed of relative movement, this speed is often times over the velocity of sound, after supersonic flow enters air inlet runner, through air-flow compression section, turn back in direction, thus produce many roads oblique shockwave or make high velocity air reduce to low supersonic by isoentropic compression, its pressure and temperature raise, after throat's distance piece steady flow, ultrasonic gas after discharging compression from air inlet runner outlet, thus gas kinetic energy is converted into pressure potential. by the shape of appropriate design air inlet runner air-flow compression section, air inlet runner just can be made to keep good performance.
As shown in Fig. 3 (b), principle of work based on the quill shaft ram-compressed rotor of ultra-combustion ramjet engine charge road compression technology is: when ram-compressed rotor starts to rotate, the air-flow of air inlet end outside is inhaled in the air inlet runner of compression rotor wheel disc outer rim 13 thereupon. In the initial stage, owing to the rotating speed of compression rotor is lower, the air-flow speed of relative movement of compression rotor wheel disc outer rim does not reach supersonic velocity condition, does not have multishock to occur in air inlet runner, and compression rotor is not obvious to the compression effect of air-flow; Along with improving constantly of compression rotor speed of rotation, the air-flow speed of relative movement in air inlet runner also improves thereupon.
When compression rotor speed of rotation meets following relational expression:
In formula: the rotating speed of n compression rotor; The specific heat ratio of k gas; R gas law constant; T static temperature; R wheel disc radius
The air-flow speed of relative movement entered in air inlet runner will reach supersonic velocity condition, now, series of shock and reflection wave will be produced when the air-flow compression section 15 that air-flow is arranged in air inlet runner, when air-flow is by these shock waves and reflection wave, its pressure and temperature raise, decrease in velocity, air-flow is after entering throat's distance piece 16 by the throat of air inlet runner, to flow out compression rotor outlet relative to wheel disc supersonic velocity, speed of relative movement is exported in certain supersonic range by conservative control compression rotor, after synthesizing with wheel disc circumferential speed, outlet absolute velocity can be made to be subsonic velocity, increase exit flow and circumference angle simultaneously.
The above, it it is only the better embodiment of the present invention, not the present invention is done any restriction in form, although the present invention discloses as above with better embodiment, but and be not used to limit the present invention, any those skilled in the art are not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or it is modified to the equivalent embodiment of equivalent variations, in every case it is the content not departing from technical solution of the present invention, the technical spirit of foundation the present invention is to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. based on the quill shaft rotary punching compression rotor of shock wave compression technology, it is characterized in that: comprise, quill shaft (11), is placed in the outer casing (20) of wheel assemblies outside with the wheel assemblies of quill shaft (11) synchronous axial system assembling and cover;
Wherein, wheel disc outer rim (13) outer wall surface of wheel assemblies is evenly distributed with multiple spiral septum (14), and the installation angle of each spiral septum (14) is identical;
Often gap between adjacent two spiral septums (14) forms an air inlet runner, and every bar air inlet runner causes exit end by inlet end and is disposed with air-flow compression section (15), throat's distance piece (16) and triangular-shaped outlet extension (17);
Wherein, the compression air flue that air-flow compression section (15) reduce gradually for radius clearance; Throat's distance piece (16) waits area passage for what radius clearance remained unchanged; Triangular-shaped outlet extension (17) remains unchanged for radius clearance, and is the air flue of trilateral in circumference cylinder.
2. the quill shaft rotary punching compression rotor based on shock wave compression technology according to claim 1, it is characterised in that: described air-flow compression section (15) and throat's distance piece (16) are positioned at the overlapping region of adjacent two spiral septums (14).
3. the quill shaft rotary punching compression rotor based on shock wave compression technology according to claim 1, it is characterised in that: described wheel assemblies comprises: sleeve (19), web (21) and wheel hub (18); Described sleeve (19) and the assembling of quill shaft (11) synchronous axial system, wheel hub (18) is fixing with the assembling of sleeve (19) synchronous axial system by web (21); Wherein, wheel disc outer rim (13) is wheel hub (18) peripheral outer wall.
4. the quill shaft rotary punching compression rotor based on shock wave compression technology according to claim 3, it is characterized in that: sleeve (19) and the axial both sides of the edge of wheel hub (18) are axial rotation sealing position, and seal form adopts the sealing of comb tooth or brush seal.
5. the quill shaft rotary punching compression rotor based on shock wave compression technology according to claim 1, it is characterised in that: it is provided with boundary layer on air-flow compression section (15) or in throat's distance piece (16) and lets out except device, boundary layer blow down or suction unit.
6. the quill shaft rotary punching compression rotor based on shock wave compression technology according to claim 1, it is characterised in that: the total length of described air-flow compression section (15) and throat's distance piece (16) is less than or equal to the overlapping length of adjacent two spiral septums (14).
7. the quill shaft rotary punching compression rotor based on shock wave compression technology according to claim 1, it is characterised in that: the clearance control between described spiral septum (14) and outer casing (20) adopts initiatively or passive clearance control technology as required.
8. the quill shaft rotary punching compression rotor based on shock wave compression technology according to claim 1, it is characterized in that: the inwall of described outer casing (20) is coated with last layer and easily grinds coating, the spill losses of wear-resisting material to control between outer casing (20) and spiral septum (14) top it is accompanied by spiral septum (14) top, the air inlet runner of integral shroud with closed compression rotor is set at the top of spiral septum (14), between integral shroud and outer casing (20), leaves gap as required.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124544.8A CN105626579A (en) | 2016-03-04 | 2016-03-04 | Hollow-shaft ram-rotor based on shock wave compression technology |
| CN201610624343.4A CN106089799B (en) | 2016-03-04 | 2016-07-29 | Compression rotor based on compression technology of air inlet passage of scramjet engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124544.8A CN105626579A (en) | 2016-03-04 | 2016-03-04 | Hollow-shaft ram-rotor based on shock wave compression technology |
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| Publication Number | Publication Date |
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| CN105626579A true CN105626579A (en) | 2016-06-01 |
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| CN201610124544.8A Pending CN105626579A (en) | 2016-03-04 | 2016-03-04 | Hollow-shaft ram-rotor based on shock wave compression technology |
| CN201610624343.4A Active CN106089799B (en) | 2016-03-04 | 2016-07-29 | Compression rotor based on compression technology of air inlet passage of scramjet engine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610624343.4A Active CN106089799B (en) | 2016-03-04 | 2016-07-29 | Compression rotor based on compression technology of air inlet passage of scramjet engine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953000A (en) * | 2017-05-17 | 2018-12-07 | 马春敏 | Rotary ramjet |
| CN110566476A (en) * | 2019-09-12 | 2019-12-13 | 大连海事大学 | Self-circulation casing processing device for rotary stamping compression rotor |
| CN116379002A (en) * | 2023-06-05 | 2023-07-04 | 中国空气动力研究与发展中心空天技术研究所 | Design method of equal-rotation-speed reversing diffuser structure and diffuser structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7293955B2 (en) * | 2002-09-26 | 2007-11-13 | Ramgen Power Systrms, Inc. | Supersonic gas compressor |
| JP4545009B2 (en) * | 2004-03-23 | 2010-09-15 | 三菱重工業株式会社 | Centrifugal compressor |
| CN100570161C (en) * | 2007-09-28 | 2009-12-16 | 大连海事大学 | Quill shaft rotary punching compression rotor based on the shock wave compress technique |
| CN201106578Y (en) * | 2007-09-28 | 2008-08-27 | 大连海事大学 | Intermediate axle rotating extrusion compression roter based on bow-wave compression technique |
| US8137054B2 (en) * | 2008-12-23 | 2012-03-20 | General Electric Company | Supersonic compressor |
| US9097258B2 (en) * | 2009-06-25 | 2015-08-04 | General Electric Company | Supersonic compressor comprising radial flow path |
| US8668446B2 (en) * | 2010-08-31 | 2014-03-11 | General Electric Company | Supersonic compressor rotor and method of assembling same |
| CN205956060U (en) * | 2016-03-04 | 2017-02-15 | 大连海事大学 | Compression rotor based on scramjet engine intake duct compression technique |
-
2016
- 2016-03-04 CN CN201610124544.8A patent/CN105626579A/en active Pending
- 2016-07-29 CN CN201610624343.4A patent/CN106089799B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953000A (en) * | 2017-05-17 | 2018-12-07 | 马春敏 | Rotary ramjet |
| CN110566476A (en) * | 2019-09-12 | 2019-12-13 | 大连海事大学 | Self-circulation casing processing device for rotary stamping compression rotor |
| CN110566476B (en) * | 2019-09-12 | 2021-12-31 | 大连海事大学 | Self-circulation casing processing device for rotary stamping compression rotor |
| CN116379002A (en) * | 2023-06-05 | 2023-07-04 | 中国空气动力研究与发展中心空天技术研究所 | Design method of equal-rotation-speed reversing diffuser structure and diffuser structure |
| CN116379002B (en) * | 2023-06-05 | 2023-08-11 | 中国空气动力研究与发展中心空天技术研究所 | Design method of equal-rotation-speed reversing diffuser structure and diffuser structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106089799A (en) | 2016-11-09 |
| CN106089799B (en) | 2020-02-07 |
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Application publication date: 20160601 |