CN203743073U - Variable diffuser of turbocharger air compressor - Google Patents

Variable diffuser of turbocharger air compressor Download PDF

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Publication number
CN203743073U
CN203743073U CN201320879405.8U CN201320879405U CN203743073U CN 203743073 U CN203743073 U CN 203743073U CN 201320879405 U CN201320879405 U CN 201320879405U CN 203743073 U CN203743073 U CN 203743073U
Authority
CN
China
Prior art keywords
diffuser
guide vane
air compressor
adjustable guide
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320879405.8U
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Chinese (zh)
Inventor
唐尧
顾友祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Two Integrated Science And Technology (changzhou) Co Ltd
Original Assignee
Two Integrated Science And Technology (changzhou) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Two Integrated Science And Technology (changzhou) Co Ltd filed Critical Two Integrated Science And Technology (changzhou) Co Ltd
Priority to CN201320879405.8U priority Critical patent/CN203743073U/en
Application granted granted Critical
Publication of CN203743073U publication Critical patent/CN203743073U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a variable diffuser of a turbocharger air compressor. The variable diffuser comprises a back plate, an adjustable diversion blade, a rocker and a synchronous ring. The adjustable diversion blade is arranged on the back plate and connected with the rocker through a hole in the back plate. The rocker is connected with the synchronous ring. The adjustable diversion blade is connected with the synchronous ring through the rocker. The synchronous ring rotates so that the rocker can drive the adjustable diversion blade to move. In this way, the variable diffuser of the turbocharger air compressor is simple in structure and high in efficiency; the direction of air flow leaving the blade can be effectively controlled, the air flow path is shortened, work efficiency of the air compressor is improved, air flow can smoothly pass through the diffuser and enter the diffuser at the optimal air flow attack angle, and the working range of the air compressor can not be influenced even when air flow separation is caused by the extremely-large air flow attack angle.

Description

The Viarable diffuser of supercharger air compressor
Technical field
The utility model relates to Viarable diffuser gas compressor field, particularly relates 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, owing to there being larger circumferential flow angle, forms larger linear loss at vaneless diffuser before arriving at spiral case inlet.
With the Diffuser of fixed blade, though it can control the flow direction of air-flow, but in the time of 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.
Model utility content
The technical problem that the utility model 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, enter Diffuser with the best air-flow angle of attack, and can not produce airflow breakaway because the air-flow angle of attack is too large and affect the operating range of gas compressor.
For solving the problems of the technologies described above, the technological scheme that the utility model 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 preferred embodiment of the utility model, multiple adjustable guide vanes that are equally spaced are housed on described backboard.
In preferred embodiment of the utility model, described adjustable guide vane is divided into multiple diffusion passages Diffuser.
In preferred embodiment of the utility model, on described synchronous circle, connect a transmission arm, synchronous circle is connected with outside crank by transmission arm.
In preferred embodiment of the utility model, between described adjustable guide vane and backboard, be also provided with a sealing plate.
The beneficial effects of the utility model are: the Viarable diffuser of the utility model supercharger air compressor 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, enter Diffuser with the best air-flow angle of attack, and can not produce airflow breakaway because the air-flow angle of attack is too large and affect the operating range of gas compressor.
Brief description of the drawings
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the blast structural representation of Viarable diffuser one preferred embodiment of supercharger air compressor of the present utility model;
Fig. 2 is the plan view of Viarable diffuser one preferred embodiment of supercharger air compressor of the present utility model;
Fig. 3 is the sectional view of Viarable diffuser one preferred embodiment of supercharger air compressor of the present utility model;
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
To the technological scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiments that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 to Fig. 5, the utility model is embodiment comprise:
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, rocking bar 4 with synchronize circle and 5 link together.
Adjustable guide vane 3 by rocking bar 4 with synchronize circle and 5 be connected, the rotation of synchronous circle 5 drives adjustable guide vane 3 to move by rocking bar 4, on synchronous circle 5, connect a transmission arm 2, synchronously enclose 5 and be connected with outside crank by transmission arm 2, and driven by electric actuator or pneumatic actuator.
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.
Multiple adjustable guide vanes that are equally spaced 3 are housed on described backboard 1, and adjustable guide vane 3 is divided into multiple 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.
Adjustable guide vane 3 is divided into multiple independently diffusion passages Diffuser, make to press the air that impeller is pressed into move according to the path of guide vane defined when through Diffuser, and between guide vane and pressure impeller, there are enough spaces, can avoid the high cycle fatigue of impeller and the generation of noise.
In the situation that there is no guide vane, will move by the path of logarithmic spiral (being direction shown in arrow in Fig. 4) in theory through the air-flow of Diffuser, 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, through the air of Diffuser, moved in the path (being direction shown in arrow in Fig. 5) along restriction, shorten air-flow flow process, improve 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, the direction difference that gas enters Diffuser under the different rotating speeds of pressing impeller, the angle α that is speed V and tangential velocity Vt changes with the variation of pressing wheel speed, when air-flow enters Diffuser by the guide functions of guide vane, only in the time that 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.
Adjustable guide vane 3 has just played the effect of ACTIVE CONTROL airflow direction, by regulating the angle of adjustable guide vane 3, makes it under the different rotating speeds of pressing impeller, enter Diffuser with the best air-flow angle of attack, makes air-flow pass through stably Diffuser.
The beneficial effect of the Viarable diffuser of the utility model supercharger air compressor 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, enter Diffuser with the best air-flow angle of attack, and can not produce airflow breakaway because the air-flow angle of attack is too large and affect the operating range of gas compressor.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description 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 utility model.

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, multiple 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 multiple 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.
CN201320879405.8U 2013-12-30 2013-12-30 Variable diffuser of turbocharger air compressor Expired - Fee Related CN203743073U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320879405.8U CN203743073U (en) 2013-12-30 2013-12-30 Variable diffuser of turbocharger air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320879405.8U CN203743073U (en) 2013-12-30 2013-12-30 Variable diffuser of turbocharger air compressor

Publications (1)

Publication Number Publication Date
CN203743073U true CN203743073U (en) 2014-07-30

Family

ID=51342880

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320879405.8U Expired - Fee Related CN203743073U (en) 2013-12-30 2013-12-30 Variable diffuser of turbocharger air compressor

Country Status (1)

Country Link
CN (1) CN203743073U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140730

Termination date: 20151230