CN211202114U

CN211202114U - High-low speed compatible variable turbocharger

Info

Publication number: CN211202114U
Application number: CN201922008093.3U
Authority: CN
Inventors: 韦国
Original assignee: Wuxi Zhen Shang Machinery Co ltd
Current assignee: Wuxi Zhen Shang Machinery Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-07
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses a high low-speed compromise type variable turbo charger relates to the turbo charger field. This high low-speed type variable turbo charger of compromise includes intake pipe, turbine shell, blast pipe and decompression pipe, and intake pipe and blast pipe all link to each other with turbine shell is fixed, are equipped with the turbine in the turbine shell, and the one end of decompression pipe links to each other with the intake pipe is fixed, and the other end and the blast pipe of decompression pipe are fixed continuous, and fixedly connected with control valve on the decompression pipe is equipped with controlling means in the control valve, and the inner wall of decompression pipe still is equipped with check valve subassembly. This high low-speed type variable turbocharger of compromise has realized can adjusting turbocharger's work efficiency when the high rotational speed of engine to turbocharger, can control the inside temperature of turbocharger on the one hand, is convenient for better protect the device, and on the other hand makes power take off more linear, prevents the condition of power surplus, avoids causing the waste of fuel.

Description

High-low speed compatible variable turbocharger

Technical Field

The utility model relates to a turbo charger technical field specifically is high low-speed compromise type variable turbo charger.

Background

The turbocharger is actually an air compressor, the air intake is increased by compressing air, the turbine in a turbine chamber is pushed by the inertia impulse force of exhaust gas exhausted by an engine, the turbine drives a coaxial impeller, the impeller pumps the air sent by an air filter pipeline to pressurize the air to enter the cylinder, when the rotating speed of the engine is increased, the exhaust gas exhausting speed and the rotating speed of the turbine are synchronously increased, the impeller compresses more air to enter the cylinder, the pressure and the density of the air are increased, more fuel can be combusted, and the output power of the engine can be increased by correspondingly increasing the fuel quantity and adjusting the rotating speed of the engine.

Through retrieval, chinese patent application No. CN201520091966.0 discloses a high-efficiency operation turbocharger, which comprises a turbine housing, an intermediate body and a compressor housing, wherein a coupling shaft is arranged in the intermediate body in a penetrating manner, two ends of the coupling shaft extend into the turbine housing and the compressor housing respectively, a turbine is sleeved at one end of the coupling shaft extending into the turbine housing, an impeller is sleeved at one end of the coupling shaft extending into the compressor housing, a floating bearing is arranged between the intermediate body and the coupling shaft, the intermediate body is provided with an oil inlet, an oil outlet and an oil outlet which are communicated with each other, a plurality of cooling sleeves are arranged at one end of the intermediate body close to the turbine, a plurality of cooling water cavities are formed between the plurality of cooling sleeves and the inside of the intermediate body, and a cooling oil cavity is also arranged in the intermediate. This high-efficient turbo charger is through improving, and the structure is more reasonable, can be fine with its inside temperature control in normal range to keep good work efficiency.

Above-mentioned patent exists following not enough, although can be fine in the use at ordinary times with the inside temperature control of turbo charger in normal range, but when the vehicle keeps high rotational speed state for a long time, inside temperature still can last the intensification fast, uncontrollable, and the vehicle is when accelerating suddenly, turbo charger's intervention makes power take off not linear enough, the surplus condition of power often appears, the waste of fuel has also been caused, therefore, need to adjust turbo charger's work efficiency when the high rotational speed of engine, so that better protect the device, the rising of limited temperature, and make the output of engine more linear, also energy saving simultaneously, to the not enough of prior art, the utility model discloses a high low-speed compromise type variable turbo charger, in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model discloses a high low-speed type variable turbo charger is compromise to the not enough of prior art to the problem of proposing among the solution above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: including intake pipe, turbine shell, blast pipe and decompression pipe, intake pipe and blast pipe all link to each other with turbine shell is fixed, be equipped with the turbine in the turbine shell, the one end and the intake pipe of decompression pipe are fixed to be linked to each other, the other end and the blast pipe of decompression pipe are fixed to be linked to each other, fixedly connected with control valve on the decompression pipe, be equipped with controlling means in the control valve, the inner wall of decompression pipe still is equipped with check valve subassembly.

Preferably, the control device comprises a control box body, the control box body is fixedly connected to the bottom of the control valve, two ends of the control valve are communicated with the pressure reducing pipe, and a movable valve core is arranged inside the control valve.

Preferably, the inner chamber has been seted up to the inside of control box body, the bottom fixedly connected with force pump of inner chamber, the output of force pump is equipped with the telescopic link, the one end that the force pump was kept away from to the telescopic link is fixed continuous with movable valve core.

Preferably, the check valve component comprises a fixing block and a sliding rod, the fixing block is fixedly connected to the inner wall of the decompression tube, and a round hole matched with the sliding rod is formed in the side wall of the fixing block.

Preferably, the sliding rod passes round hole and sliding connection is at the inner wall of fixed block, the one end fixedly connected with stopper of sliding rod, the radial width of stopper is greater than the radial width of round hole, the other end fixedly connected with piston of sliding rod.

Preferably, the outer wall of the sliding rod is sleeved with a spring, one end of the spring abuts against the fixed block, the other end of the spring abuts against the side wall of the piston, and the spring is in a compressed state.

Preferably, one side of the piston far away from the sliding rod is fixedly connected with a sealing gasket, the inner wall of the decompression tube is fixedly connected with a limiting ring matched with the piston, and the piston is abutted to the limiting ring.

The utility model discloses a high low-speed compromise type variable turbo charger, its beneficial effect who possesses as follows:

1. this high low-speed type variable turbo charger compromise, through setting up intake pipe, turbine shell, blast pipe, decompression pipe and controlling means, realized can adjusting turbo charger's work efficiency to turbo charger when the high rotational speed of engine, can control the inside temperature of turbo charger on the one hand, be convenient for better protect the device, on the other hand makes power take off more linear, prevents the condition of power surplus, avoids causing the waste of fuel.

2. This high low-speed type variable turbo charger that compromises, through setting up check valve subassembly, the spring promotes the piston and offsets with the spacing ring, seals the passageway through sealed the pad, has prevented that waste gas from getting into the decompression pipe in the blast pipe, and then gets back to the intake pipe and form exhaust gas circulation, has guaranteed turbo charger's steady operation and regulation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention;

fig. 4 is a diagram of the fixing block of the present invention.

In the figure: the device comprises an air inlet pipe 1, a turbine shell 2, an air outlet pipe 3, a pressure reducing pipe 4, a control valve 5, a movable valve core 501, a control box 6, an inner cavity 601, a pressure pump 602, a telescopic rod 603, a fixed block 7, a sliding rod 701, a circular hole 702, a limited block 703, a spring 704, a piston 705, a limiting ring 706 and a sealing gasket 707.

Detailed Description

The embodiment of the utility model provides a high low-speed compromise type variable turbocharger, as shown in fig. 1-4, including intake pipe 1, turbine shell 2, blast pipe 3 and decompression pipe 4, intake pipe 1 and blast pipe 3 all fixedly link with turbine shell 2, be equipped with the turbine in the turbine shell 2, one end of decompression pipe 4 is fixedly linked with intake pipe 1, the other end of decompression pipe 4 is fixedly linked with blast pipe 3, fixedly connected with control valve 5 on decompression pipe 4, be equipped with controlling means in the control valve 5, the inner wall of decompression pipe 4 still is equipped with check valve subassembly, this device through setting up intake pipe 1, turbine shell 2, blast pipe 3, decompression pipe 4 and controlling means, realized can adjusting turbocharger's work efficiency when the engine high rotational speed to the turbocharger, on the one hand can control the inside temperature of turbocharger, be convenient for better protecting the device, on the other hand, the power output is more linear, the situation of power surplus is prevented, and the waste of fuel is avoided.

The control device comprises a control box body 6, the control box body 6 is fixedly connected to the bottom of the control valve 5, two ends of the control valve 5 are communicated with the decompression pipe 4, a movable valve core 501 is arranged inside the control valve 5, and the flow of the decompression pipe 4 is adjusted by arranging the movable valve core 501.

Inner chamber 601 has been seted up to the inside of control box body 6, and the bottom fixedly connected with force pump 602 of inner chamber 601, the output of force pump 602 are equipped with telescopic link 603, and the one end that force pump 602 was kept away from to telescopic link 603 is fixed continuous with activity valve core 501, can control activity valve core 501 through setting up force pump 602 to adjust the throughput of decompression pipe 4.

The one-way valve assembly comprises a fixed block 7 and a sliding rod 701, the fixed block 7 is fixedly connected with the inner wall of the decompression tube 4, the side wall of the fixed block 7 is provided with a round hole 702 matched with the sliding rod 701, the sliding rod 701 penetrates through the round hole 702 and is slidably connected with the inner wall of the fixed block 7, one end of the sliding rod 701 is fixedly connected with a limiting block 703, the radial width of the limiting block 703 is larger than that of the round hole 702, the other end of the sliding rod 701 is fixedly connected with a piston 705, the outer wall of the sliding rod 701 is sleeved with a spring 704, one end of the spring 704 abuts against the fixed block 7, the other end of the spring 704 abuts against the side wall of the piston 705, the spring 704 is in a compression state, one side of the piston 705 far away from the sliding rod 701 is fixedly connected with a sealing gasket 707, the inner wall of the decompression tube, the spring 704 pushes the piston 705 to abut against the limit ring 706, and the channel is sealed by the sealing gasket 707, so that the exhaust gas is prevented from entering the decompression pipe 4 in the exhaust pipe 3 and then returning to the intake pipe 1 to form exhaust gas circulation, and the stable work and adjustment of the turbocharger are ensured.

The working principle is as follows: when the engine speed is low, the movable valve core 501 is at the highest point, the decompression pipe 4 is in a closed state, the exhaust gas discharged by the engine directly enters the turbine shell 2 from the air inlet pipe 1 and pushes the turbine to rotate, so that the turbocharger works, then the exhaust gas is discharged from the exhaust pipe 3, when the engine is accelerated rapidly or continuously at a high speed, the pressure pump 602 works and drives the telescopic rod 603 to move downwards, the telescopic rod 603 drives the movable valve core 501 to move downwards, at this time, one part of the high-speed and high-pressure exhaust gas pushes the turbine and is discharged from the exhaust pipe 3, the other part of the high-speed and high-pressure exhaust gas directly passes through the decompression pipe 4, passes through the check valve assembly, enters the exhaust pipe 3 and is discharged, so that the high-speed and high-pressure exhaust gas is decompressed, the power of the turbocharger is reduced, when the speed is reduced, the pressure pump, thereby, the exhaust gas intake amount of the decompression pipe 4 is reduced, the proportion of the exhaust gas amount in the turbine housing 2 is increased, and the relative power of the turbocharger is further improved, so that the power output of the vehicle is smoother.

When exhaust gas passes through the one-way valve assembly, the piston 705 moves, the piston 705 pushes the sliding rod 701 to slide on the inner wall of the fixed block 7 and compress the spring 704, the spring 704 pushes the piston 705 to abut against the limiting ring 706 through the one-way valve assembly, and the channel is sealed through the sealing gasket 707, so that the exhaust gas is prevented from entering the decompression pipe 4 in the exhaust pipe 3 and then returning to the intake pipe 1 to form exhaust gas circulation.

This device is through setting up intake pipe 1, turbine shell 2, blast pipe 3, decompression pipe 4 and controlling means, has realized can adjusting turbocharger's work efficiency to turbocharger when the high rotational speed of engine, can control the inside temperature of turbocharger on the one hand, and the better device of being convenient for is protected, and on the other hand makes power take off more linear, prevents the condition of power surplus, avoids causing the waste of fuel.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. High low-speed type variable turbo charger of compromise, including intake pipe (1), turbine shell (2), blast pipe (3) and decompression pipe (4), its characterized in that: intake pipe (1) and blast pipe (3) all link to each other with turbine shell (2) is fixed, be equipped with the turbine in turbine shell (2), the one end and intake pipe (1) of decompression pipe (4) are fixed to be linked to each other, the other end and the blast pipe (3) of decompression pipe (4) are fixed to be linked to each other, fixedly connected with control valve (5) are gone up in decompression pipe (4), be equipped with controlling means in control valve (5), the inner wall of decompression pipe (4) still is equipped with check valve subassembly.

2. The variable geometry turbocharger according to claim 1, wherein: the control device comprises a control box body (6), the control box body (6) is fixedly connected to the bottom of the control valve (5), two ends of the control valve (5) are communicated with the decompression pipe (4), and a movable valve core (501) is arranged inside the control valve (5).

3. The high-low speed compatible variable geometry turbocharger according to claim 2, wherein: an inner cavity (601) is formed in the control box body (6), a pressure pump (602) is fixedly connected to the bottom of the inner cavity (601), an expansion rod (603) is arranged at the output end of the pressure pump (602), and one end, far away from the pressure pump (602), of the expansion rod (603) is fixedly connected with the movable valve core (501).

4. The variable geometry turbocharger according to claim 1, wherein: the check valve component comprises a fixing block (7) and a sliding rod (701), the fixing block (7) is fixedly connected to the inner wall of the decompression pipe (4), and a round hole (702) matched with the sliding rod (701) is formed in the side wall of the fixing block (7).

5. The high-low speed compatible variable geometry turbocharger according to claim 4, wherein: the sliding rod (701) penetrates through the round hole (702) and is connected to the inner wall of the fixing block (7) in a sliding mode, a limiting block (703) is fixedly connected to one end of the sliding rod (701), the radial width of the limiting block (703) is larger than that of the round hole (702), and a piston (705) is fixedly connected to the other end of the sliding rod (701).

6. The high-low speed compatible variable geometry turbocharger according to claim 4, wherein: the outer wall of the sliding rod (701) is sleeved with a spring (704), one end of the spring (704) abuts against the fixed block (7), the other end of the spring (704) abuts against the side wall of the piston (705), and the spring (704) is in a compressed state.

7. The high-low speed compatible variable geometry turbocharger according to claim 5, wherein: one side of the piston (705) far away from the sliding rod (701) is fixedly connected with a sealing gasket (707), the inner wall of the decompression tube (4) is fixedly connected with a limiting ring (706) matched with the piston (705), and the piston (705) is abutted to the limiting ring (706).