CN210164538U

CN210164538U - Hydraulic compensation turbocharger improving device

Info

Publication number: CN210164538U
Application number: CN201921199494.5U
Authority: CN
Inventors: 于秀敏; 崔世科; 郭泽洲; 李德成; 李依楠; 徐明佳; 于龙龙; 郑通
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-03-20
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a hydraulic compensation's turbo charger improves device, include: an engine; and a turbine provided at an exhaust passage of the engine, and driven to rotate by exhaust gas discharged therefrom; the impeller of the air compressor is arranged at an air inlet channel of the engine, is coaxially connected with the turbine and synchronously rotates with the turbine; a high-speed water wheel coaxially arranged between the turbine and the compressor impeller and selectively connectable to or disconnectable from the turbine; and the high-pressure water pump is connected with the high-speed water wheel through a working water path and is used for driving the high-speed water wheel to rotate, and when the rotating speed of the engine is lower, the gas compressor can also be normally involved to work, so that the turbo lag phenomenon is improved, and the dynamic property of the engine is improved.

Description

Hydraulic compensation turbocharger improving device

Technical Field

The utility model relates to an automobile engine technical field, more specifically, the utility model relates to a turbo charger of water conservancy compensation improves device.

Background

Turbocharging is a technique that uses engine exhaust energy to drive operation of a supercharger, thereby increasing charge density. Waste gas generated during the operation of the internal combustion engine enters the turbine according to certain momentum to directly drive the impeller in the turbine to rotate, so that the coaxially connected gas compressor is driven to realize the air inlet pressurization. Because exhaust gas turbocharging recycles exhaust energy, internal combustion engines are more economical than both supercharged and non-supercharged internal combustion engines.

Supercharging lag is a problem faced by turbocharging requirements. Since the turbine is a fluid machine, the rotation speed depends on the exhaust flow rate, and when the internal combustion engine operates at the rotation speed, the exhaust flow rate is low, and the turbocharger cannot be involved, and the internal combustion engine is poor in dynamic performance. When the internal combustion engine suddenly increases the rotating speed, the transient response of the turbocharger is poor, and the turbocharger cannot immediately intervene. When the supercharger suddenly intervenes, the power of the engine is increased sharply, and the driving safety and the driving comfort are affected. Therefore, there is a strong need for a turbocharger lag improvement device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to design and develop a hydraulic compensation's turbo charger improve device, through set up high-speed water wheels between turbine and compressor impeller, and high-speed water wheels can selectively be connected with the turbine or the disconnection to realize the rotation of high-speed water wheels through the work water route, make the engine when the rotational speed is lower, the compressor also can normally intervene the work, improves the turbine hysteresis, improves the dynamic property of engine.

The utility model provides a technical scheme does:

a hydraulically compensated turbocharger improving device, comprising:

an engine; and

a turbine provided at an exhaust passage of the engine, and driven to rotate by exhaust gas discharged therefrom;

the impeller of the air compressor is arranged at an air inlet channel of the engine, is coaxially connected with the turbine and synchronously rotates with the turbine;

a high-speed water wheel coaxially arranged between the turbine and the compressor impeller and selectively connectable to or disconnectable from the turbine;

and the high-pressure water pump is connected with the high-speed water wheel through a working waterway and is used for driving the high-speed water wheel to rotate.

Preferably, the method further comprises the following steps:

the turbine shaft is coaxially connected with the turbine and the compressor, and the high-speed water wheel is sleeved on the turbine shaft between the turbine and the compressor;

and the clutch device is arranged between the high-speed water wheel and the turbine shaft and used for selectively connecting or disconnecting the turbine shaft and the high-speed water wheel.

Preferably, the method further comprises the following steps:

a first housing for housing a turbine,

a second housing for accommodating the compressor wheel;

a third housing for housing the high-speed water wheel;

the water inlet is arranged on one side of the third shell and used for feeding water;

the water outlet is arranged on one side of the third shell close to the water inlet and used for discharging water;

the water inlet and the water outlet are communicated through the working waterway, and the third shell is arranged between the first shell and the second shell; the turbine shaft can rotatably penetrate through the third shell, and two ends of the turbine shaft can be rotatably supported and arranged on the first shell and the second shell.

Preferably, the method further comprises the following steps:

the first floating bearing is fixedly sleeved on the turbine shaft between the first shell and the working waterway;

the second floating bearing is fixedly sleeved on the turbine shaft between the second shell and the working waterway;

sealing rings are symmetrically sleeved at two sides of the turbine shaft penetrating through the third shell, and the sealing rings are located between the first floating bearing and the second floating bearing and used for sealing the high-speed water wheel and the working water path.

Preferably, the engine further comprises an air cleaner provided at an intake passage of the engine for filtering intake air.

Preferably, a plurality of cylinders are arranged in the engine, an intake manifold of each cylinder is communicated with the intake passage, and an air manifold of each cylinder is communicated with the exhaust passage.

Preferably, the method further comprises the following steps:

a plurality of rotational speed sensors provided on the engine and the turbine, respectively, for detecting an engine rotational speed and a turbine rotational speed.

Beneficial effect:

the utility model relates to a hydraulic compensation's of development turbocharger improves device, through set up high-speed water wheels between turbine and compressor impeller, and high-speed water wheels can the selectivity be connected with the turbine or the disconnection to realize high-speed water wheels's rotation through the work water route, make the engine when the rotational speed is lower, the compressor also can normally intervene work, improves the hysteresis of turbine, improves the dynamic property of engine.

Drawings

Fig. 1 is a schematic view of a hydraulic compensation turbocharger improving device according to the present invention.

Fig. 2 is a partially enlarged schematic view of a hydraulic compensation turbocharger improving device according to the present invention.

Fig. 3 is a schematic diagram of a partially enlarged structure of a hydraulic compensation turbocharger improving device according to the present invention.

Fig. 4 is a schematic structural view of the high-speed water wheel of the present invention.

Fig. 5 is a schematic diagram of a partially enlarged structure of the hydraulic compensation turbocharger improving device according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

As shown in fig. 1-5, the present invention provides a hydraulic compensation turbocharger improving apparatus, comprising: an engine 100 in which a plurality of cylinders are provided, and an intake manifold of all the cylinders communicates with an intake passage 110 of the engine, and an exhaust manifold of all the cylinders communicates with an exhaust passage 120 of the engine; a turbine 130 is arranged at the exhaust passage 120 of the engine 100, and is driven by the exhaust gas to rotate, which is equivalent to converting the power of the exhaust gas into the power of the rotation of the turbine 130; an impeller 140 of the compressor is provided at the intake passage 110 of the engine 100, and the impeller 140 is coaxially connected to the turbine 130 via a turbine shaft 131 and rotates in synchronization with the turbine 130. Therefore, when the exhaust gas is discharged, the power of the exhaust gas drives the turbine 130 to rotate, and further drives the compressor impeller 140 which is coaxially connected to rotate, so that the intake air supercharging is realized. Because exhaust gas turbocharging recycles exhaust energy, internal combustion engines are more economical than both supercharged and non-supercharged internal combustion engines.

A high-speed water wheel 150 is coaxially arranged between the turbine 130 and the compressor impeller 140, the high-speed water wheel 150 is sleeved on the turbine shaft 131 through a clutch device 200, and the high-speed water wheel 150 and the turbine 130 can be selectively connected or disconnected through connection or disconnection of the clutch device; the high-speed water wheel is disposed in the working water path 160 and is communicated with the high-pressure water pump 170 through the working water path, and the flow rate of the high-pressure water pump 170 can be controlled by controlling the working power of the high-pressure water pump 170, so as to control the flow rate of water in the working water path 160 and control the rotation speed of the high-speed water wheel 150.

In this embodiment, the turbine further includes a first casing 132 and a second casing 141 for respectively accommodating the turbine 130 and the impeller 140 of the compressor, and further includes a third casing 151 for accommodating the high-speed water wheel 150, a water inlet 1511 and a water outlet 1512 are respectively disposed at upper and lower ends of the third casing 151, and are communicated with each other through a working water path 160, and the rotation speed of the high-speed water wheel 150 is controlled by controlling the flow rate of the high-pressure water pump 170, the third casing 151 is disposed between the first casing 132 and the second casing 141, the turbine shaft 131 rotatably penetrates through the working water path 160 of the third casing 151, and both ends are rotatably supported and disposed on the first casing 132 and the second casing 141. A first floating bearing 133 is fixedly sleeved on the turbine shaft 131 (i.e. the rotatable connection part of the turbine shaft 131 and the third housing 151) between the first housing 132 and the working waterway 160, a second floating bearing 142 is fixedly sleeved on the turbine shaft 131 (i.e. the rotatable connection part of the turbine shaft 131 and the third housing 151) between the second housing 141 and the working waterway 160, sealing rings 152 are symmetrically sleeved on the turbine shaft 131 between the first floating bearing 133 and the second floating bearing 142 and at the two sides of the third housing 151 where the turbine shaft 131 passes through, and the high-speed water wheel 150 is hermetically arranged in the third housing 151, i.e. the high-speed water wheel and the working waterway are sealed.

Since the turbine is a fluid machine, the rotation speed depends on the exhaust flow rate, and when the internal combustion engine operates at a low rotation speed, the exhaust flow rate is low, so that a compressor (i.e., a turbocharger) cannot be involved, and the internal combustion engine is poor in dynamic performance. At this time, the clutch device is controlled to work, so that the high-speed water wheel 150 is connected with the turbine shaft 131, the high-pressure water pump 170 is controlled to work, the high-speed water wheel 150 is driven to move, the turbine 130 and the compressor impeller 140 which are coaxially connected are driven to rotate, the air inlet pressurization of the compressor is realized, and the hysteresis of the turbocharger is improved.

When the rotation speed of the internal combustion engine is within a reasonable rotation speed range, the turbocharger has good response, at the moment, the high-speed water wheel 150 is controlled to be disconnected from the turbine shaft 131, at the moment, the working water channel 160 enters a cooling mode, excessive flow is not needed, and the high-pressure water pump 170 is controlled to operate at low power.

In this embodiment, an air filter 180 is further included and disposed at the intake passage 110 of the engine 100 for filtering intake air to remove particulate impurities from the air.

In the present embodiment, the present invention further includes a plurality of rotation speed sensors, which are respectively disposed on the engine 100 and the turbine 130, and are used for detecting the rotation speed of the engine 100 and the rotation speed of the turbine 130; and the controller 190 is connected with the rotating speed sensor, the clutch device and the high-pressure water pump, and is used for receiving the detection data of the rotating speed sensor and controlling the clutch device and the high-pressure water pump to work.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A hydraulically compensated turbocharger improving device, comprising:

an engine; and

2. The hydraulically compensated turbocharger enhancement device of claim 1, further comprising:

3. The hydraulically compensated turbocharger improving device according to claim 2, further comprising:

a first housing for housing a turbine,

a second housing for accommodating the compressor wheel;

a third housing for housing the high-speed water wheel;

4. The hydraulically compensated turbocharger improving device according to claim 3, further comprising:

5. The hydrodynamically compensated turbocharger improving device according to claim 1, 2, 3 or 4, further comprising an air cleaner provided at an intake passage of the engine for filtering intake air.

6. The hydrodynamically compensated turbocharger improving device according to claim 5, wherein a plurality of cylinders are provided in the engine, an intake manifold of the cylinders communicating with the intake passage, and an exhaust manifold of the cylinders communicating with the exhaust passage.

7. The hydraulically compensated turbocharger improving device according to claim 2, further comprising: