CN216894673U - Engine oxygen boosting supercharging device, engine supercharging system and car - Google Patents

Abstract

The utility model belongs to the technical field of automobile engines, and discloses an engine oxygen-enriched supercharging device which is mainly used for solving the problem that the existing engine supercharging device cannot effectively improve the oxygen content flowing into an engine combustion chamber. The main structure is as follows: the oxygen increasing branch is arranged on the air inlet pipeline provided with the gas supercharger, two ends of the oxygen increasing branch are communicated between the air inlet end and the air outlet end of the gas supercharger, the oxygen filtering device is arranged in the oxygen increasing branch, after the fresh air is supercharged, a part of air can pass through the oxygen filtering device under the driving action of pressure difference, the oxygen filtered by the oxygen filtering device and the newly-entered fresh air flow to a combustion chamber of an engine after being supercharged by the gas supercharger again, and the air with low oxygen content intercepted by the oxygen filtering device can be discharged through the gas discharge port. In addition, the utility model also discloses an engine supercharging system and an automobile.

Description

Engine oxygen boosting supercharging device, engine supercharging system and car

Technical Field

The utility model belongs to the technical field of automobile engines, and particularly relates to an engine oxygen-enriched supercharging device, an engine supercharging system and an automobile.

Background

The engine is the heart of the automobile and provides power for the walking of the automobile, and is related to the dynamic property, the economical efficiency and the environmental protection property of the automobile. Briefly, the engine is an energy conversion mechanism that can convert the thermal energy generated by the combustion of fuel into mechanical energy to drive the piston to do work and provide power for the vehicle. Therefore, how to safely and effectively improve the output power of the engine without increasing the volume and the displacement of the engine is a problem which is intensively researched by various automobile manufacturers.

In recent years, increasing the power of an automobile engine by increasing the intake pressure, i.e., increasing the density of combustion air entering the combustion chamber of the engine to increase the amount of air supplied into the combustion chamber, has become one of the research focuses. The amount of oxygen entering the combustion chamber of the engine directly affects the combustion condition of the fuel and the power output condition of the engine.

At present, an exhaust gas turbocharger is mostly used in an automobile engine to supercharge the engine, the traditional turbocharger utilizes the inertia impulse force of exhaust gas discharged by the engine to push a turbine in a turbine chamber, the turbine drives an impeller of a coaxial compressor, and the impeller of the compressor pumps air sent by an air inlet pipeline to supercharge the air and enter a combustion chamber. The advantages of the exhaust turbocharging mode are that: when the rotating speed of the engine is increased, the exhaust speed of the waste gas and the rotating speed of the turbine are synchronously increased, the impeller of the compressor can compress more air to enter the cylinder, the input of the air is in direct proportion to the exhaust of the waste gas, the fuel economy is improved, the exhaust emission can be reduced, and the tail gas noise is reduced; but its shortcoming is also obvious simultaneously, when the engine is running at low speed, the flow of exhaust gas is lower, because the inertia effect of impeller is to the throttle change of sudden-time change reaction delay, makes the engine delay to increase or reduce output power, and this to the car of wanting to accelerate suddenly or overtaking, can not enough feel in the twinkling of an eye, and the whole acceleration has delay sense, and is not consistent.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects presented by the prior art, the utility model aims to provide an oxygen-enriched supercharging system of an engine, which can improve the oxygen content entering a combustion chamber of the engine.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

an engine oxygen-enriched supercharging device comprises a gas supercharger arranged in an air inlet pipeline, wherein an oxygen-enriched branch is also arranged on the air inlet pipeline, and two ends of the oxygen-enriched branch are respectively communicated with an air inlet end and an air outlet end of the gas supercharger; an oxygen filter is arranged in the oxygen increasing branch, and a gas discharge port is arranged on the high-pressure side of the oxygen filter in the oxygen increasing branch.

Further, the oxygen filter is an oxygen-enriched membrane.

Further, the gas discharge port is disposed close to the oxygen filter. An exhaust gas discharge valve is installed at the gas discharge port.

Further, the gas supercharger is a multistage axial-flow compressor.

Furthermore, the stator blades of the multistage axial-flow compressor are arranged on the inner wall of the air inlet pipeline, and the rotor blade shaft is connected with the motor.

Further, the air filter is arranged at the inlet of the air inlet pipeline.

Compared with the prior art, the utility model has the following beneficial effects:

firstly, the utility model boosts the fresh air flowing into the air inlet pipeline through the air supercharger in the air inlet pipeline, and is provided with an oxygenation shunt which is communicated with the air inlet end and the air outlet end of the air supercharger, an oxygen filter device is arranged in the oxygenation shunt, after the fresh air is boosted, the pressure of the air outlet end of the air supercharger is higher than that of the air inlet end, so that pressure difference can be formed at two sides of the oxygen filter device, a part of boosted air can pass through the oxygen filter device under the driving action of the pressure difference, and most of oxygen in the air is filtered to flow back to the air inlet end of the air supercharger, at the moment, the oxygen and the newly entered fresh air flow to a combustion chamber of an engine after being boosted by the air supercharger again, and the air with low oxygen content intercepted by the oxygen filter device can be discharged through an air discharge port, and on the whole, the utility model can ensure high oxygen content in the air inlet pipeline, further improving the combustion efficiency of the engine fuel.

The oxygen filter is an oxygen-enriched membrane, the operating principle of the oxygen filter is that oxygen in the air preferentially passes through the membrane to obtain oxygen-enriched air under the driving of pressure difference by utilizing different permeation rates of all components of the air when the components penetrate through the membrane, the oxygen-enriched proportion of the oxygen-enriched air can reach ninety percent, the oxygen filter is good in oxygen filtering effect, the oxygen content of the oxygen entering a combustion chamber of an engine can be remarkably improved, and further the combustion efficiency of fuel is increased.

And the gas discharge port is close to the oxygen filtering device, so that the pipeline can be discharged by the air with low oxygen content intercepted by the oxygen filtering device at the first time, the air is prevented from flowing back to the combustion chamber of the engine, the waste gas discharge valve at the gas discharge port can control the discharged waste gas at the first time, and the working stability of the supercharging device is ensured.

And the gas supercharger adopts a multi-stage axial-flow compressor, the gas flow capacity of the axial-flow compressor in unit area is large, the radial size of the gas inlet pipeline is smaller under the premise of the same gas inflow, the gas inflow is larger under the condition of not changing the size of the gas inlet pipe adopted in the prior art, and meanwhile, the gas pressure ratio of multi-stage setting is high, so that the oxygen filtering operation of the oxygen filtering device is facilitated, and the output performance of an engine system can be improved.

And the stator blades of the multistage axial-flow compressor are arranged on the inner wall of the air inlet pipeline, the rotor blade shaft is connected with the motor, the whole structure is compact, the condition of acceleration delay when the automobile is at a low speed can not occur, meanwhile, the rotor blade shaft is driven by another motor and does not depend on the power of the engine, the output efficiency of the engine can be improved, the supercharging effect of the engine can not be influenced by the engine, and the rotating speed of the motor can be adjusted only according to the requirement of the engine to be matched with the requirement of the engine.

Sixthly, the device also comprises an air filter, wherein the air filter is arranged at the inlet of the air inlet pipeline and used for filtering out impurities and dust in the air, so that the gas supercharger is prevented from being damaged, and the whole service life of the device is effectively prolonged.

The utility model also provides an engine supercharging system, which comprises an air inlet manifold communicated with an air inlet of the engine and the engine oxygen-enriched supercharging device; the air outlet of the engine oxygen-enriched supercharging device is communicated with the air inlet manifold through an engine throttle valve. The engine supercharging system has the same beneficial effects as the engine oxygen-enriched supercharging device.

The utility model further provides an automobile comprising the engine supercharging system. The automobile has the same beneficial effects as the engine supercharging system.

Drawings

FIG. 1 is a schematic diagram of the oxygen-rich supercharging device of the engine according to the present invention.

Fig. 2 is a schematic structural diagram of an engine supercharging system according to the present invention.

The system comprises an air inlet pipeline 1, an air supercharger 2, stator blades 21, rotor blade shafts 22, a motor 23, an oxygen increasing branch 3, an oxygen filtering device 4, an air discharge port 5, an air filter 6, an engine 7, an air inlet manifold 8 and an engine throttle 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the oxygen-enriched supercharging device for the engine comprises a gas supercharger 2 arranged in an air inlet pipeline 1, wherein an oxygen-enriched branch 3 is further arranged on the air inlet pipeline 1, and two ports of the oxygen-enriched branch 3 are respectively communicated with an air inlet end and an air outlet end of the gas supercharger 2; an oxygen filter 4 is arranged in the oxygen increasing branch 3, and a gas discharge port 5 is arranged on the high-pressure side of the oxygen filter 4 in the oxygen increasing branch 3.

The utility model boosts the fresh air flowing into the air inlet pipeline 1 through the air supercharger 2 arranged in the air inlet pipeline 1, and is also provided with an oxygen increasing branch 3 which is communicated with the air inlet end and the air outlet end of the air supercharger 2, the oxygen increasing branch 3 is internally provided with an oxygen filter 4, after the fresh air is boosted, the pressure of the air outlet end of the air supercharger 2 is higher than that of the air inlet end, so that pressure difference can be formed at two sides of the oxygen filter 4, a part of the boosted air can pass through the oxygen filter 4 under the driving action of the pressure difference, and most of the oxygen in the air is filtered to flow back to the air inlet end of the air supercharger 2, at the moment, the oxygen and the newly-entered fresh air flow to the combustion chamber of the engine after being boosted again through the air supercharger 2, and the air with low oxygen content intercepted by the oxygen filter 4 can be discharged through the air discharge port 5, and on the whole, the utility model can ensure high oxygen content in the air inlet pipeline 1, further improving the combustion efficiency of the engine fuel.

The oxygen filtering device 4 is an oxygen-enriched membrane, the operating principle of the oxygen filtering device is that oxygen in the air preferentially passes through the membrane to obtain oxygen-enriched air under the driving of pressure difference by utilizing different permeation rates of all components of the air when the components penetrate through the membrane, the oxygen-enriched air has the oxygen-enriched proportion reaching ninety percent, the oxygen filtering effect is good, the oxygen content entering a combustion chamber of an engine can be obviously improved, and further the combustion efficiency of fuel is increased.

Gas discharge port 5 is close to and is strained oxygen device 4 setting, guarantees to be strained the air that oxygen content is low that oxygen device 4 intercepted and can the discharge line by the very first time, avoids it to flow back into the combustion chamber of engine, and the exhaust emission valve of gas discharge port 5 department can control exhaust gas very first time, guarantees this supercharging device's job stabilization nature.

The gas supercharger 2 adopts a multistage axial-flow compressor, the gas through-flow capacity of the axial-flow compressor in unit area is large, the radial size of the air inlet pipeline is smaller under the precondition of the same air inflow, the air inflow is larger under the condition of not changing the size of the air inlet pipe adopted in the prior art, and meanwhile, the gas pressure ratio of multistage setting is high, so that the oxygen filtering work of the oxygen filtering device 4 is facilitated, and the output performance of an engine system can be improved.

The stator blades 21 of the multistage axial-flow compressor are arranged on the inner wall of the air inlet pipeline 1, the rotor blade shaft 22 is connected with the motor 23, the whole structure is compact, the condition of acceleration delay in the low speed of an automobile can not occur, meanwhile, the rotor blade shaft 22 is driven by an additional motor and does not depend on the power of the engine, the output efficiency of the engine can be improved, the supercharging effect of the engine can not be influenced by the engine, and only the rotating speed of the motor needs to be adjusted according to the engine requirements, so that the engine can be matched with the engine requirements.

Still include air cleaner 6, air cleaner 6 is installed at the entrance of air inlet pipeline 1 for filter out impurity and dust in the air, avoid haring gas booster 2, effectively improve the device's whole life.

An engine supercharging system as shown in fig. 2 comprises an intake manifold 8 communicated with an air inlet of an engine 7 and an engine oxygen-rich supercharging device in the embodiment; the air outlet of the engine oxygen-enriched supercharging device is communicated with an air inlet manifold 8 through an engine throttle valve 9.

An automobile comprises the engine supercharging system.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (8)

1. An oxygen-enriched supercharging device of an engine comprises a gas supercharger (2) arranged in an air inlet pipeline (1), and is characterized in that an oxygen-increasing branch (3) is further arranged on the air inlet pipeline (1), and two ends of the oxygen-increasing branch (3) are respectively communicated with an air inlet end and an air outlet end of the gas supercharger (2); an oxygen filtering device (4) is arranged in the oxygen increasing branch (3), and a gas discharge port (5) is arranged on the high-pressure side of the oxygen filtering device (4) in the oxygen increasing branch (3).

2. An engine oxygen-rich supercharging device according to claim 1, characterized in that the oxygen filter device (4) is an oxygen-rich membrane.

3. An engine oxygen-rich supercharging device according to claim 1, characterized in that the gas discharge (5) is provided close to the oxygen filter (4).

4. An engine oxygen-rich supercharging device according to claim 1, characterized in that the gas supercharger (2) is a multistage axial flow compressor.

5. An engine oxygen-rich supercharging device according to claim 4, characterized in that the stator blades (21) of the multistage axial flow compressor are mounted on the inner wall of the intake line (1), and the rotor blade shaft (22) is coupled with the electric motor (23).

6. An oxygen-rich supercharging device for an engine according to claim 1, characterized in that it further comprises an air filter (6), the air filter (6) being mounted at the inlet of the air intake conduit (1).

7. An engine supercharging system, characterized by comprising an intake manifold (8) in communication with an intake port of an engine (7) and an oxygen-rich engine supercharging device as claimed in any one of claims 1 to 6, wherein an outlet of the oxygen-rich engine supercharging device is in communication with the intake manifold (8) via an engine throttle valve (9).

8. An automobile comprising the engine supercharging system of claim 7.

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