CN203809068U

CN203809068U - Inner bypass volute

Info

Publication number: CN203809068U
Application number: CN201320671364.3U
Authority: CN
Inventors: 唐尧; 潘伟
Original assignee: Two Integrated Science And Technology (changzhou) Co Ltd
Current assignee: Two Integrated Science And Technology (changzhou) Co Ltd
Priority date: 2013-10-29
Filing date: 2013-10-29
Publication date: 2014-09-03
Anticipated expiration: 2023-10-29

Abstract

The utility model discloses an inner bypass volute, comprising a volute body and an executor; an air inlet flow guide blade is arranged at the air inlet of the volute; at least two channels comprising a vortex channel and a deflating channel are arranged in the volute communicated with the air inlet; the air inlet flow guide blade is in driving connection with the executor. By the mode, the inner bypass volute is simple and reliable in structure, the boosting effect of a booster when an engine is operated at low speed is obviously improved, the low-speed torque of the engine is improved and the problem of the excessive boosting when the engine is operated at high speed is effectively avoided.

Description

Inner bypass volute

Technical field

The utility model relates to mechanical field, particularly relates to a kind of inner bypass volute.

Background technique

Turbosupercharger is widely used in the machinery such as vehicular engine, marine engine, power generating equipment and engineering machinery.It can significantly improve engine performance, energy-saving and emission-reduction.Along with the increasingly stringent of motor emission regulation demands, the performance of turbosupercharger is also had higher requirement.Owing to driving turbine rotor to need a certain amount of exhaust energy, and the exhaust gas flow of motor is few in the situation that the motor slow-speed of revolution moves, not enough to the acting of turbo machine.And if the air inlet cross section that reduces volute is moved in high engine speeds, in the large situation of exhaust gas flow, there will be again the excessive problem of supercharging.Make like this turbosupercharger ubiquity low engine speed moment of torsion when with Engine Matching not enough, the poor and excessive problem of high-speed boosting of emission performance.

The excessive problem of supercharging while turning round for solving high engine speeds, there is exhaust gas by-pass valve volute technology, but still can not solve the problem of low speed supercharging deficiency, and because part waste gas is without just directly discharge of any utilization, its energy containing is not utilized effectively, and has caused energy dissipation.For meeting the performance requirement in the full condition range of motor, there is subsequently variable nozzle turbocharging technology (VNT), but its complex structure, processing technology difficulty is high, and assembling difficulty is large, uses the turbosupercharger cost of its technology high, expensive.

Model utility content

The technical problem that the utility model mainly solves is to provide a kind of inner bypass volute, can solve the poor and excessive problem of high-speed boosting of turbocharger low speed boost performance.

For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of inner bypass volute is provided, comprise: volute body and final controlling element, the suction port place of described volute body is provided with air inlet guide vane, the whirlpool enclosure interior being communicated with suction port is provided with at least two passages, be respectively swirl channel and bleed passage, described air inlet guide vane is connected with actuator driven.

In preferred embodiment of the utility model, in described volute body, be provided with turbine, described swirl channel is located at the air inlet side of turbine, and described bleed passage is located at the side of giving vent to anger of turbine.

In preferred embodiment of the utility model, described bleed passage is annular bleed passage.

In preferred embodiment of the utility model, described air inlet guide vane is located between two passages.

In preferred embodiment of the utility model, actuator driven air inlet guide vane swings around an axle, and its pendulum angle is less than or equal to 90 °.

The beneficial effects of the utility model are: the utility model inner bypass turbocharger housing structure is simple, reliable, can significantly improve the pressurized effect of pressurized machine when low engine speed is moved, improve low engine speed moment of torsion, the excessive problem of supercharging in the time of can effectively avoiding high engine speeds running simultaneously.

Accompanying drawing explanation

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 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 structural representation of the utility model inner bypass volute one preferred embodiment;

Fig. 2 is the sectional view of the volute of inner bypass shown in Fig. 1

Fig. 3 is the structural representation of another preferred embodiment of the utility model inner bypass volute;

Fig. 4 is the structural representation of another state of Fig. 3;

In accompanying drawing, the mark of each parts is as follows: 1, volute body, 2, final controlling element, 3, air inlet guide vane, 4, swirl channel, 5, bleed passage, 6, turbine.

Embodiment

Below the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills 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 and Fig. 2, the utility model is embodiment comprise:

A kind of inner bypass volute, comprise: volute body 1 and final controlling element 2, the suction port place of described volute body 1 is provided with air inlet guide vane 3, volute body 1 inside being communicated with suction port is provided with at least two passages, be respectively swirl channel 4 and bleed passage 5, described air inlet guide vane 3 drives and is connected with final controlling element 2.

By final controlling element 2, drive into 3 actions of gas guide vane, thereby carry out water conservancy diversion to entering the waste gas of volute, regulate the size of the exhausted air quantity that enters swirl channel 4.Enter swirl channel 4 and all participate in acting with the waste gas that enters bleed passage 5, take full advantage of the energy of waste gas.

Wherein, described bleed passage 5 is annular bleed passage 5.

As shown in Figure 3 and Figure 4, in described volute body 1, be provided with turbine 6, described swirl channel 4 is located at the air inlet side of turbine 6, and described bleed passage 5 is located at the side of giving vent to anger of turbine 6.

Described air inlet guide vane 3 is located between two passages.Final controlling element 2 drives into gas guide vane 3 and swings around an axle, and its pendulum angle is less than or equal to 90 °.

In motor slow-speed of revolution operation, in the few situation of waste gas discharge capacity, air inlet guide vane 3 cuts out annular bleed passage 5 completely, and final controlling element 2 drives into gas guide vane 3 and is flapped toward annular bleed passage 5 one sides, and waste gas all enters 6 actings of 4 pairs of turbines of swirl channel.Effectively improve the pressurized effect of turbosupercharger when low engine speed is moved, improved the low speed torque of motor.

Along with the raising of engine speed, the exhaust gas flow that motor is discharged increases, under the driving of final controlling element 2 guide vane open gradually annular bleed passage 5 make waste gas from turbine 6 near the position of trailing edge to its local acting, then discharge.

When engine speed is high during to certain value, air inlet guide vane 3, perpendicular to the inlet flange face of volute, is opened annular bleed passage 5 completely, large quantity of exhaust gas from turbine 6 near the position of trailing edge to its local acting, then discharge.Effectively like this to entering the exhausted air quantity in eddy current road, control, the excessive problem of pressurized machine supercharging while having avoided high engine speeds operation, and the waste gas by annular bleed passage 5 is not all directly to discharge, but participated in the part acting to turbine 6, take full advantage of all exhausted air quantities, improved the utilization rate of exhaust energy.

The utility model inner bypass turbocharger housing structure is simple, reliable, can significantly improve the pressurized effect of pressurized machine when low engine speed is moved, and improves low engine speed moment of torsion, the excessive problem of supercharging in the time of can effectively avoiding high engine speeds running simultaneously.

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

1. an inner bypass volute, it is characterized in that, comprise: volute body and final controlling element, the suction port place of described volute body is provided with air inlet guide vane, the whirlpool enclosure interior being communicated with suction port is provided with at least two passages, be respectively swirl channel and bleed passage, described air inlet guide vane is connected with actuator driven; In described volute body, be provided with turbine, described swirl channel is located at the air inlet side of turbine, and described bleed passage is located at the side of giving vent to anger of turbine.

2. inner bypass volute according to claim 1, is characterized in that, described bleed passage is annular bleed passage.

3. inner bypass volute according to claim 1, is characterized in that, described air inlet guide vane is located between two passages.

4. inner bypass volute according to claim 3, is characterized in that, actuator driven air inlet guide vane swings around an axle, and its pendulum angle is less than or equal to 90 °.