CN103727071A - Variable pressure expander of pressurizer gas compressor - Google Patents
Variable pressure expander of pressurizer gas compressor Download PDFInfo
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- CN103727071A CN103727071A CN201310740819.7A CN201310740819A CN103727071A CN 103727071 A CN103727071 A CN 103727071A CN 201310740819 A CN201310740819 A CN 201310740819A CN 103727071 A CN103727071 A CN 103727071A
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- adjustable guide
- guide vane
- diffuser
- gas compressor
- backboard
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Abstract
The invention discloses a variable pressure expander of a pressurizer gas compressor. The variable pressure expander comprises a back plate, adjustable guide vanes, a rocking rod and a synchronous ring. The adjustable guide vanes are mounted on the back plate, the adjustable guide vanes are connected with the rocking rod through a hole in the back plate, the rocking rod is connected with the synchronous ring, the adjustable guide vanes are connected with the synchronous ring through the rocking rod, and the synchronous ring rotates to drive the adjustable guide vanes to move through the rocking rod. According to the mode, the variable pressure expander of the pressurizer gas compressor is simple in structure and high in efficiency, can effectively control the direction of gas flow away from the impeller, shortens the gas flow process, and improves the working efficiency of the gas compressor, the gas flow can stably pass through the pressure expander and enter the pressure expander with the best gas flow attack angle, and the working range of the gas compressor can not be affected by gas flow separation generated by the too large gas flow attack angle.
Description
Technical field
The present invention relates to Viarable diffuser gas compressor field, particularly relate to a kind of Viarable diffuser that is applicable to supercharger air compressor.
Background technique
In order to solve global environment problem, it is vital reducing motor vehicle emission and low fuel oil consumptionization.Have taked respectively U.S., Europe, day strengthening Abgasgesetz and low fuel oil consumption countermeasure, particularly in Europe, car diesel engine has obtained remarkable development.
These diesel engines must have pressurized machine, because its most of pressurized machines use capacity-variable type turbine, therefore pressurized machine will adapt to above-mentioned requirements with gas compressor, need turbine to have high efficiency and broad range of flow.On the other hand, concerning petrol engine, in order to take into account low-speed performance and peak power, require gas compressor to there is same performance.
One of aerodynamic elements that determines Capability of Compressor is Diffuser.Diffuser generally has or not Ye Shi and has leaf formula, has leaf formula to have stationary blade and blade variable chip.The gas compressor Diffuser of traditional turbosupercharger is not with blade, and air-flow leaves after impeller, at vaneless diffuser, owing to there being larger circumferential flow angle, forms larger linear loss before arriving at spiral case inlet.
Diffuser with fixed blade, though it can control the flow direction of air-flow, but when off-design behaviour, because the mobile coupling between impeller and Diffuser is in large angle of attack state, cause diffuser vane inside especially suction surface one side there is flow separation, cause flow in gas compressor unstable, thereby the range of flow of gas compressor is significantly reduced, cannot meet the work requirements of vehicular engine.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of Viarable diffuser of supercharger air compressor, simple in structure, efficiency is high, can either to leave the air-flow of impeller carry out effective controlling party to, shorten air-flow flow process, improve gas compressor working efficiency, can make again air-flow steadily pass through Diffuser, with the best air-flow angle of attack, enter Diffuser, and can not produce because the air-flow angle of attack is too large the operating range that airflow breakaway affects gas compressor.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: the Viarable diffuser that a kind of supercharger air compressor is provided, comprise: backboard, adjustable guide vane, rocking bar and synchronously circle, adjustable guide vane is housed on backboard, adjustable guide vane is connected with rocking bar by the hole on backboard, rocking bar with synchronize circle and connect, adjustable guide vane by rocking bar with synchronize circle and be connected, the rotation of synchronously enclosing drives adjustable guide vane to move by rocking bar.
In a preferred embodiment of the present invention, a plurality of adjustable guide vanes that are equally spaced are housed on described backboard.
In a preferred embodiment of the present invention, described adjustable guide vane is divided into a plurality of diffusion passages Diffuser.
In a preferred embodiment of the present invention, on described synchronous circle, connect a transmission arm, synchronous circle is connected with outside crank by transmission arm.
In a preferred embodiment of the present invention, between described adjustable guide vane and backboard, be also provided with a sealing plate.
The invention has the beneficial effects as follows: the Viarable diffuser of supercharger air compressor of the present invention is simple in structure, efficiency is high, can either to leave the air-flow of impeller carry out effective controlling party to, shorten air-flow flow process, improve gas compressor working efficiency, can make again air-flow steadily by Diffuser, with the best air-flow angle of attack, enter Diffuser, and can not produce because the air-flow angle of attack is too large the operating range that airflow breakaway affects gas compressor.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the blast structural representation of Viarable diffuser one preferred embodiment of supercharger air compressor of the present invention;
Fig. 2 is the plan view of Viarable diffuser one preferred embodiment of supercharger air compressor of the present invention;
Fig. 3 is the sectional view of Viarable diffuser one preferred embodiment of supercharger air compressor of the present invention;
Fig. 4 is that the Viarable diffuser of supercharger air compressor is not having the situation downstream path schematic diagram of guide vane;
Fig. 5 is that the Viarable diffuser of supercharger air compressor is having the situation downstream path schematic diagram of guide vane;
In accompanying drawing, the mark of each parts is as follows: 1, backboard, 2, transmission arm, 3, adjustable guide vane, 4, rocking bar, 5, synchronous circle, 6, sealing plate.
Embodiment
Below the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making all other embodiments that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 5, the embodiment of the present invention comprises:
A kind of Viarable diffuser of supercharger air compressor, comprise: backboard 1, adjustable guide vane 3, rocking bar 4 and synchronously enclose 5, adjustable guide vane 3 is housed on backboard 1, and adjustable guide vane 3 is connected with rocking bar 4 by the hole on backboard 1, and rocking bar 4 encloses 5 and links together with synchronizeing.
Between described adjustable guide vane 3 and backboard 1, be also provided with a sealing plate 6, due to the gap between adjustable guide vane 3 rotating shafts, sealing plate 6 can be used for avoiding compressed-air actuated leakage.
A plurality of adjustable guide vanes that are equally spaced 3 are housed on described backboard 1, and adjustable guide vane 3 is divided into a plurality of independent diffusion passages with certain orientation Diffuser.
Regulate adjustable guide vane 3 can keep the angle of guide vane to approach the angle of the air motion that enters Diffuser, thereby avoid the formation of turbulent flow, make air-flow steadily pass through Diffuser.
In the situation that there is no guide vane, the air-flow of process Diffuser in theory will be by the path of logarithmic spiral (being direction shown in arrow in Fig. 4) motion, and the distance that arrives compressor volute import is longer, and linear loss is larger;
In the situation that having guide vane, due to the effect of guide vane, the air of process Diffuser, by path (being direction shown in arrow in Fig. 5) motion along restriction, has shortened air-flow flow process, has improved the efficiency of gas compressor.The movement velocity V of the gas that pressure impeller is pressed into is determined by radial velocity Vr and tangential velocity Vt, under the different rotating speeds of pressing impeller, gas enters the direction difference of Diffuser, the angle α that is speed V and tangential velocity Vt is with pressing the variation of wheel speed to change, when the guide functions of air-flow by guide vane enters Diffuser, only when the direction of its moving direction (being α angle) and guide vane is identical air-flow just can be stably according to the path motion of guide vane defined and do not produce airflow breakaway and incident loss, prevent the generation in advance of surge.
The beneficial effect of the Viarable diffuser of supercharger air compressor of the present invention is:
Simple in structure, efficiency is high, can either to leave the air-flow of impeller carry out effective controlling party to, shorten air-flow flow process, improve gas compressor working efficiency, can make again air-flow steadily by Diffuser, with the best air-flow angle of attack, enter Diffuser, and can not produce because the air-flow angle of attack is too large the operating range that airflow breakaway affects gas compressor.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. the Viarable diffuser of a supercharger air compressor, it is characterized in that, comprise: backboard, adjustable guide vane, rocking bar and synchronously circle, adjustable guide vane is housed on backboard, adjustable guide vane is connected with rocking bar by the hole on backboard, rocking bar with synchronize circle and connect, adjustable guide vane by rocking bar with synchronize circle and be connected, the rotation of synchronously enclosing drives adjustable guide vane to move by rocking bar.
2. the Viarable diffuser of supercharger air compressor according to claim 1, is characterized in that, a plurality of adjustable guide vanes that are equally spaced are housed on described backboard.
3. the Viarable diffuser of supercharger air compressor according to claim 2, is characterized in that, described adjustable guide vane is divided into a plurality of diffusion passages Diffuser.
4. the Viarable diffuser of supercharger air compressor according to claim 1, is characterized in that, on described synchronous circle, connects a transmission arm, and synchronous circle is connected with outside crank by transmission arm.
5. the Viarable diffuser of supercharger air compressor according to claim 1, is characterized in that, is also provided with a sealing plate between described adjustable guide vane and backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740819.7A CN103727071A (en) | 2013-12-30 | 2013-12-30 | Variable pressure expander of pressurizer gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740819.7A CN103727071A (en) | 2013-12-30 | 2013-12-30 | Variable pressure expander of pressurizer gas compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727071A true CN103727071A (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310740819.7A Pending CN103727071A (en) | 2013-12-30 | 2013-12-30 | Variable pressure expander of pressurizer gas compressor |
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| CN (1) | CN103727071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339258A (en) * | 2017-03-15 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of auxiliary denoising device of cooking-fume exhauster blower system |
| CN107816457A (en) * | 2017-10-19 | 2018-03-20 | 北京理工大学 | A kind of centrifugal compressor diffuser |
-
2013
- 2013-12-30 CN CN201310740819.7A patent/CN103727071A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339258A (en) * | 2017-03-15 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of auxiliary denoising device of cooking-fume exhauster blower system |
| CN107339258B (en) * | 2017-03-15 | 2023-08-18 | 宁波方太厨具有限公司 | Auxiliary noise reduction device of range hood fan system |
| CN107816457A (en) * | 2017-10-19 | 2018-03-20 | 北京理工大学 | A kind of centrifugal compressor diffuser |
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Application publication date: 20140416 |