CN205225439U - Supplementary exhaust turbine supercharging device of electricity - Google Patents

Abstract

The utility model discloses a supplementary exhaust turbine supercharging device of electricity, including conventional turbo that has the air inlet and the conventional exhaust turbine who has the gas outlet, conventional turbo is connected to the inlet manifold of engine through the supplementary turbo of electricity, the exhaust manifold of engine connects conventional exhaust turbine, the supplementary turbo of electricity is connected with the motor, the motor passes through the controller and connects the battery, the engine is the during operation under the lower operating mode of rotational speed, the controller obtains the signal from speed sensor, control motor work, and then the supplementary turbine work of control electricity, strengthen the pressure boost ability under the slow -speed of revolution, the problem of conventional exhaust gas turbocharger low -speed acceleration performance is bad is solved, the engine is the during operation under the higher operating mode of rotational speed, and conventional supercharging device can satisfy the pressure boost requirement, and the electric energy is practiced thrift to controller control motor stop work.

Description

An electrically assisted exhaust gas turbocharging device

【Technical field】

The utility model belongs to the field of automobile turbocharging devices, in particular to an electric auxiliary exhaust gas turbocharging device.

【Background technique】

The exhaust gas emitted by automobile engines has high kinetic energy. During the periodical movement of the engine, the exhaust gas is discharged in the form of exhaust pulses. Effective use of this exhaust gas to do work has very practical significance for energy saving and emission reduction.

A universal exhaust gas turbocharger is known from DE 10 2008 048 126 A1 with a compressor housing and a turbine housing, wherein the bearings of the rotor are accommodated in the turbine housing and in the compressor housing because they are directly attached to each other , without the bearing housing that is usually arranged between the turbine housing and the compressor housing. The turbine housing is in this case connected to the turbine housing via a spacer ring, wherein the spacer ring simultaneously serves as a bearing ring for the variable turbine geometry. On the radially outer side of the spacer ring, the turbine housing is also directly connected to the compressor housing.

The weak point of conventional exhaust gas turbocharging device is: one low-speed acceleration performance is bad. Since the rotation of the turbine is driven by the exhaust gas discharged from the engine, the flow rate of the exhaust gas is not enough when the engine is at a low speed. At this time, the speed of the turbine is not enough to achieve the supercharging effect, but it will hinder the discharge of the engine exhaust gas, resulting in poor exhaust; There is turbo lag. Due to the inertia of the impeller, there is a phenomenon that the accelerator response and the actual vehicle speed are not synchronized in actual work, especially when accelerating or decelerating rapidly, the engine is required to increase or decrease the output power quickly, which is for a car that needs to accelerate or overtake suddenly , There will be a feeling of lack of energy in an instant.

【Content of utility model】

The purpose of the utility model is to overcome the above disadvantages and provide an electric auxiliary exhaust gas turbocharging device. The device has a simple structure and is easy to install, and can improve the operability of the automobile.

In order to achieve the above object, the utility model includes a conventional supercharging turbine with an air inlet and a conventional exhaust gas turbine with an air outlet, the conventional supercharging turbine is connected to the intake manifold of the engine through an electrically assisted supercharging turbine, and the exhaust manifold of the engine The conventional exhaust gas turbine is connected, and the electrically assisted turbocharger is connected with an electric motor, and the electric motor is connected to the battery through a controller.

The controller is connected with a rotational speed sensor.

The controller is connected with a throttle opening sensor.

The exhaust manifold is connected to the exhaust gas power generation turbine, the waste gas power generation turbine is connected to the generator, the generator is connected to the battery through the rectifier, and the exhaust gas power generation turbine is also connected to the conventional exhaust gas turbine.

The working shaft of the conventional turbocharger is connected to the working shaft of the conventional exhaust gas turbine.

The air outlet of the conventional supercharging turbine is connected with an exhaust pipe.

Compared with the prior art, when the engine of the utility model is working at a low speed, the controller obtains a signal from the speed sensor to control the operation of the electric motor, and then controls the operation of the electric auxiliary turbine to enhance the supercharging capacity at low speed , to solve the problem of poor low-speed acceleration performance of conventional exhaust gas turbochargers; when the engine is working at a high speed, the conventional supercharging device can meet the supercharging requirements, and the controller controls the motor to stop working to save electric energy; In the case of rapid acceleration or rapid deceleration, the controller obtains a signal from the throttle opening sensor to control the motor to work in the forward or reverse direction, so as to solve the problem of lagging turbo response of the conventional exhaust gas turbocharger.

Further, the utility model can drive the generator to generate electricity under the normal working condition of the engine by the exhaust gas power generation turbine, charge the battery, improve the heat utilization rate of the exhaust gas of the engine, and achieve the purpose of energy saving and emission reduction.

【Description of drawings】

Fig. 1 is the structural representation of the utility model.

Among them, 1 air intake, 2 conventional supercharged turbo, 3 electric auxiliary supercharged turbo, 4 engine, 5 exhaust gas power generation turbine, 6 conventional exhaust gas turbine, 7 exhaust port, 8 electric motor, 9 controller, 10 battery, 11 rectifier , 12 generators, 13 intake manifolds, 14 exhaust manifolds.

【detailed description】

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Fig. 1 , the utility model includes a conventional supercharging turbine 2 with an air inlet 1 and a conventional exhaust gas turbine 6 with an air outlet 7, and the conventional supercharging turbine 2 is connected to the intake manifold of the engine 4 through an electrically assisted supercharging turbine 3 13. The exhaust manifold 14 of the engine 4 is connected to the conventional exhaust gas turbine 6 through the exhaust gas power generation turbine 5, the exhaust gas power generation turbine 5 is connected to the generator 12, the generator 12 is connected to the battery 10 through the rectifier 11, and the exhaust gas power generation turbine 5 is also connected to the conventional exhaust gas turbine 6, The electrically assisted turbocharger 3 is connected to a motor 8, the motor 8 is connected to the battery 10 through a controller 9, the controller 9 is connected to a rotational speed sensor and a throttle opening sensor, the working shaft of the conventional turbocharger 2 is connected to the working shaft of the conventional exhaust gas turbine 6 Connect, the gas outlet 7 of conventional supercharging turbine 2 connects exhaust pipe.

Among them, the shaft of the electric auxiliary turbocharger 3 is mechanically connected to the shaft of the electric motor 8 , the shaft of the exhaust gas power generation turbine 5 is mechanically connected to the shaft of the generator 12 , and the shaft of the conventional turbocharger 2 is mechanically connected to the shaft of the conventional exhaust gas turbine 6 .

The working process of the present utility model is: the controller 9 obtains the signal from the speed sensor, when the engine is found to be working at a low speed, the controller 9 sends a signal to control the motor 8 to work, and when the engine is found to be working at a high speed , the controller 9 sends a signal to control the motor 8 to stop working; the controller 9 obtains a signal from the throttle position sensor, and when it is found that the automobile is working under a rapid acceleration condition, the controller 9 controls the motor 8 to work forward; When the position sensor obtains a signal and finds that the car is working under the condition of rapid deceleration, the controller 9 controls the motor 8 to work in reverse; the exhaust gas power generation turbine 5 drives the generator 12 to work, and is rectified by the rectifier 11 to charge the battery 10 .

Claims (6)

1. An electrically assisted exhaust gas turbocharging device, characterized in that: comprise a conventional turbocharger (2) with an air inlet (1) and a conventional exhaust turbine (6) with an air outlet (7), the conventional supercharging The turbine (2) is connected to the intake manifold (13) of the engine (4) through the electric auxiliary turbocharger (3), and the exhaust manifold (14) of the engine (4) is connected to the conventional exhaust gas turbine (6). The turbine (3) is connected with an electric motor (8), and the electric motor (8) is connected with a battery (10) through a controller (9). 2. The electrically assisted exhaust gas turbocharging device according to claim 1, characterized in that: the controller (9) is connected with a rotational speed sensor. 3. The electrically assisted exhaust gas turbocharging device according to claim 1, characterized in that: the controller (9) is connected with a throttle opening sensor. 4. An electric-assisted exhaust gas turbocharging device according to claim 1, characterized in that: the exhaust manifold (14) is connected to the exhaust gas power generation turbine (5), and the exhaust gas power generation turbine (5) is connected to the generator (12 ), the generator (12) is connected to the battery (10) through a rectifier (11), and the exhaust gas power generation turbine (5) is also connected to a conventional exhaust gas turbine (6). 5. An electrically assisted exhaust gas turbocharging device according to claim 1, characterized in that: the working shaft of the conventional supercharging turbine (2) is connected with the working shaft of the conventional exhaust gas turbine (6). 6 . The electrically assisted exhaust gas turbocharging device according to claim 1 , characterized in that: the gas outlet ( 7 ) of the conventional turbocharger ( 2 ) is connected to an exhaust pipe. 7 .