CN209838574U - Methanol injection mechanism, internal combustion engine, vehicle and methanol and diesel oil mixed combustion control system - Google Patents

Abstract

The utility model relates to the technical field of internal-combustion engines, and discloses an alcohol injection mechanism, an internal-combustion engine, a vehicle and a methanol and diesel oil mixed combustion control system, in particular to a methanol injection mechanism which comprises a methanol supply component and an oxygen supply component; the methanol supply component comprises a methanol fuel tank, an alcohol-resistant pump, a methanol pipeline and a methanol nozzle; the oxygen supply assembly comprises an oxygen source, an oxygen pressurizing pump and an oxygen pipeline; the air outlet end of the oxygen pipeline is communicated with the spray opening of the methanol spray nozzle so as to mix the oxygen with the foggy methanol fuel sprayed by the methanol spray nozzle. Compared with a pure diesel internal combustion engine, the utility model saves the oil consumption cost; meanwhile, the discharge amount of polluting carbon oxides can be greatly reduced, and the environmental protection requirement of tail gas discharge is met.

Description

Methanol injection mechanism, internal combustion engine, vehicle and methanol and diesel oil mixed combustion control system

Technical Field

The utility model belongs to the technical field of the internal-combustion engine technique and specifically relates to a methyl alcohol injection mechanism, internal-combustion engine, car and methyl alcohol and diesel oil mixed combustion control system.

Background

With the development of science and technology, vehicles such as automobiles and the like have been deeply inserted into the lives of people as transportation tools and transportation tools, and great convenience is brought to the lives of people.

The power source of automobiles is usually gasoline, diesel oil, electric power, and the like, wherein the gasoline and the diesel oil are used for providing power for the automobiles through combustion of fuel by an internal combustion engine. In order to obtain larger torque and the like, the existing heavy vehicles generally adopt a diesel internal combustion engine to burn fuel to obtain the power of the engine.

When the diesel internal combustion engine burns fuel, more pollutants such as nitrogen oxides, carbon oxides and the like are often generated in the exhaust gas of vehicles, and with the improvement of the environmental protection requirement, heavy vehicles adopting the diesel internal combustion engine have to be improved so as to meet the requirement of exhaust gas emission. In the existing improvement scheme, a methanol and diesel oil mixed combustion internal combustion engine with a methanol fuel auxiliary mechanism is added on a diesel oil internal combustion engine, and the methanol and diesel oil mixed combustion internal combustion engine does not generate nitrogen oxide during methanol combustion, so that the emission quality of vehicle exhaust is improved to a certain extent, but carbon oxides with pollution properties are still high, and the emission requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a methanol injection mechanism to solve the technical problem that the carbon oxide that has pollution nature in the tail gas that the mixed combustion internal-combustion engine that exists methanol and diesel oil mixed combustion still is higher than usual among the prior art.

A second object of the present invention is to provide an internal combustion engine to solve the technical problem that the carbon oxides with pollution property in the tail gas discharged from the mixed combustion internal combustion engine with methanol and diesel oil mixed combustion existing in the prior art still are high.

A third object of the present invention is to provide a vehicle, which solves the technical problem of the prior art that the carbon oxides with pollution property in the tail gas discharged from the mixed combustion internal combustion engine with methanol and diesel oil mixed combustion still remain high.

A fourth object of the present invention is to provide a methanol and diesel oil mixed combustion control system internal combustion engine to solve the technical problem that the carbon oxides with pollution property in the tail gas discharged from the mixed combustion internal combustion engine of methanol and diesel oil mixed combustion existing in the prior art still are higher.

In view of the above first object, the present invention provides a methanol injection mechanism for an internal combustion engine, the methanol injection mechanism comprising a methanol supply assembly and an oxygen supply assembly;

the methanol supply component comprises a methanol fuel tank, an alcohol-resistant pump, a methanol pipeline and a methanol nozzle; the methanol fuel tank is internally provided with a methanol pipeline, wherein the methanol pipeline is internally provided with an oil inlet end and an oil outlet end; the oil outlet end of the methanol pipeline is connected with the methanol nozzle;

the oxygen supply assembly comprises an oxygen source, an oxygen pressurizing pump and an oxygen pipeline; the air inlet end of the oxygen pipeline is connected with the oxygen source, and the oxygen pressurizing pump is arranged on the oxygen pipeline;

the air outlet end of the oxygen pipeline is communicated with the jet orifice of the methanol nozzle so as to mix the oxygen with the foggy methanol fuel sprayed by the methanol nozzle.

Further, the methanol injection mechanism further comprises a mixing air inlet pipeline;

the air outlet end of the oxygen pipeline is communicated with the mixed air inlet pipeline; the methanol nozzle is arranged on the mixed air inlet pipeline and can spray mist methanol fuel into the mixed air inlet pipeline.

Further, the oxygen source is an oxygen tank or an oxygen generator.

Furthermore, a power mechanism of the oxygen pressurizing pump is provided with a pressurizing pump frequency converter, and the delivery rate of the oxygen can be adjusted by adjusting the frequency of the pressurizing pump frequency converter;

the methanol fuel injection device is characterized in that the methanol nozzle is a methanol electromagnetic nozzle which comprises a solenoid valve with adjustable frequency and a nozzle, and the injection rate of the methanol fuel can be adjusted by adjusting the frequency of the solenoid valve.

Further, a liquid level detection assembly is arranged in the methanol fuel tank and used for detecting the residual amount of the methanol fuel in the methanol fuel tank.

Further, the methanol fuel tank and the oxygen source are arranged side by side, and the air outlet of the oxygen source and the oil outlet of the methanol fuel tank are located on the same side of the methanol fuel tank and the oxygen source.

Further, the methanol fuel tank is fixedly connected with the oxygen source.

Based on the second purpose, the utility model provides an internal combustion engine, which comprises an internal combustion engine, a diesel injection mechanism and a methanol injection mechanism provided by the utility model;

and the mixed gas outlet of the methanol injection mechanism and the oil outlet of the diesel injection mechanism are respectively communicated with a fuel inlet of the internal combustion engine.

Based on above-mentioned third purpose, the utility model provides a car, the car is provided with the utility model provides a methyl alcohol injection mechanism.

Based on the fourth objective, the utility model provides a methanol and diesel oil mixed combustion control system, which is applied to the internal combustion engine provided by the utility model, the control system comprises a main control unit, and a temperature detection component, an ECU control unit and an accelerator information acquisition component which are respectively and electrically connected with the main control unit; the main control unit is also respectively and electrically connected with a controller of the alcohol-resistant pump, a controller of the methanol electromagnetic nozzle, a controller of the oxygen generator and a controller of the oxygen pressurizing pump;

the temperature detection assembly is used for detecting the temperature information of the cooling water of the engine and sending the acquired temperature information to the main control unit;

the ECU control unit is used for controlling the operation of the diesel injection mechanism according to the instruction of the main control unit;

the throttle information acquisition component is used for acquiring throttle information and sending the acquired throttle information to the main control unit;

the main control unit receives the temperature information and sends an action instruction to the controller of the alcohol-resistant pump and the controller of the oxygen generator according to the temperature information; and the main control unit simultaneously receives the throttle information and respectively sends corresponding flow control instructions to the ECU control unit, the controller of the methanol electromagnetic nozzle and the controller of the oxygen pressurizing pump according to the throttle information when the temperature value corresponding to the temperature information is greater than the temperature threshold value.

Preferably, the control system further comprises a rotation speed detection assembly, and the rotation speed detection assembly is electrically connected with the main control unit;

the rotating speed detection assembly is used for detecting rotating speed information of the engine and sending the detected rotating speed information to the main control unit;

and the main control unit receives the rotating speed information, and respectively sends corresponding flow control instructions to the ECU control unit, the controller of the methanol electromagnetic nozzle and the controller of the oxygen pressurizing pump according to the accelerator information when the temperature value corresponding to the temperature information is greater than the temperature threshold value and the rotating speed corresponding to the rotating speed information exceeds the idle speed threshold value.

Preferably, a liquid level detection assembly is arranged in the methanol fuel tank and is electrically connected with the main control unit;

the liquid level detection assembly is used for detecting the residual information of the methanol fuel in the methanol fuel tank and sending the residual information of the methanol fuel to the main control unit;

and the main control unit receives the residual information of the methanol fuel, and sends closing signals to a controller of the alcohol-resistant pump, a controller of the oxygen generator, a controller of the methanol electromagnetic nozzle and a controller of the oxygen pressurizing pump when the residual amount of the methanol fuel corresponding to the residual information of the methanol fuel is lower than a residual amount threshold value of the methanol fuel, and sends flow control instructions to the ECU control unit.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a methanol injection mechanism, which comprises a methanol supply component and an oxygen supply component; the methanol supply component comprises a methanol fuel tank, an alcohol-resistant pump, a methanol pipeline and a methanol nozzle; the oxygen supply assembly comprises an oxygen source, an oxygen pressurizing pump and an oxygen pipeline; the air outlet end of the oxygen pipeline is communicated with the spray opening of the methanol spray nozzle so as to mix the oxygen with the foggy methanol fuel sprayed by the methanol spray nozzle. Firstly, the methanol injection mechanism of the utility model is applied to the internal combustion engine which can mix and burn methanol and diesel oil, and can provide a certain amount of methanol as a power source for the internal combustion engine through the methanol injection mechanism, because the methanol is lower in price compared with the diesel oil, the fuel consumption cost is saved compared with the internal combustion engine of pure diesel oil; secondly the utility model discloses methyl alcohol injection mechanism's oxygen supply subassembly can provide the combustion-supporting oxygen of capacity, and the oxygen of capacity mixes with methyl alcohol nozzle spun vaporific methyl alcohol, and when getting into the internal-combustion engine like this and burning, the diesel oil in the internal-combustion engine and the co-combustion of methyl alcohol are abundant, can not produce the oxycarbide of polluting because of the oxygen deficiency, and especially methyl alcohol only produces carbon dioxide and water when burning, can reduce the emission of the oxycarbide of polluting by a wide margin, reaches the environmental protection requirement.

The utility model provides an internal-combustion engine has the utility model provides a methyl alcohol injection mechanism. The utility model provides a car includes the utility model provides a methyl alcohol injection mechanism or the utility model provides an internal-combustion engine. The utility model discloses internal-combustion engine and car have with the utility model provides a methanol injection mechanism is the same beneficial effect, through right the utility model provides a methanol injection mechanism's beneficial effect's description also can audio-visual learning, no longer gives detailed description here.

The utility model provides a methanol and diesel oil mixed combustion control system, which is applied to the internal combustion engine provided by the utility model, the control system comprises a main control unit, and a temperature detection component, an ECU control unit and an accelerator information acquisition component which are respectively and electrically connected with the main control unit; the main control unit is also respectively and electrically connected with a controller of the alcohol-resistant pump, a controller of the methanol electromagnetic nozzle, a controller of the oxygen generator and a controller of the oxygen pressurizing pump. The utility model discloses methyl alcohol and diesel oil mix to burn control system steerable when the temperature value of engine is greater than the temperature threshold, just can open alcohol-resistant pump and oxygenerator, so guaranteed the ignition process of internal-combustion engine to can avoid methyl alcohol low temperature combustion to produce the problem that has the oxycarbide of pollution nature easily to a certain extent. Meanwhile, the main control unit receives the accelerator information, and respectively sends action instructions to the ECU control unit, the controller of the methanol electromagnetic nozzle and the controller of the oxygen pressurizing pump according to the accelerator opening degree corresponding to the accelerator information when the temperature value corresponding to the temperature information is larger than the temperature threshold value, so that the proportion of the supply amount of methanol and diesel oil and the proportion of methanol and oxygen can be adjusted in real time according to different accelerator opening degrees, the energy supply of mixed fuel is maximized, and the full combustion of methanol is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a methanol injection mechanism according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a methanol and diesel oil mixed combustion control system according to an embodiment of the present invention.

Icon: a 100-methanol fuel tank; 101-oil filler; 102-a liquid level detection assembly; 110-alcohol resistant pump; 111-a strainer; 120-methanol line; 121-a filter; 130-methanol electromagnetic nozzle; 200-oxygen generator; 210-an oxygen line; 220-oxygen booster pump; 300-a hybrid intake duct; 400-a master control unit; 500-ECU control unit; 600-a temperature detection component; 700-throttle information acquisition component; 800-temperature control unit; 900-oil level display unit.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1 to 2, the present embodiment provides a methanol injection mechanism for an internal combustion engine capable of co-combusting methanol and diesel. Specifically, the methanol injection mechanism comprises a methanol supply assembly and an oxygen supply assembly.

As shown in fig. 1, the methanol supply module includes a methanol fuel tank 100, a methanol pipe 120, and a methanol solenoid nozzle 130, and the oxygen supply module includes an oxygen generator 200, an oxygen pressurizing pump 220, and an oxygen pipe 210. Wherein, an alcohol-resistant pump 110 is arranged in the methanol fuel tank 100, and the oil inlet end of the methanol pipeline 120 is inserted into the methanol fuel tank 100 and connected with the alcohol-resistant pump 110; the oil outlet end of the methanol pipeline 120 is connected with a methanol electromagnetic nozzle 130. The air inlet end of the oxygen pipeline 210 is connected with the oxygen generator 200, and the oxygen pressurizing pump 220 is arranged on the oxygen pipeline 210. The air outlet end of the oxygen pipeline 210 is communicated with the jet orifice of the methanol electromagnetic nozzle 130, so that the oxygen is mixed with the mist methanol fuel sprayed by the methanol electromagnetic nozzle 130.

The way of communicating the outlet end of the oxygen pipeline 210 with the jet orifice of the methanol electromagnetic nozzle 130 may be various, for example: the injection port of the methanol electromagnetic nozzle 130 may be directly disposed on the oxygen line 210 and communicated with the oxygen line 210. In various communication forms, preferably, the outlet end of the oxygen pipeline 210 is communicated and mixed with the injection port of the methanol electromagnetic nozzle 130 through a mixing inlet pipeline, and particularly, referring to fig. 1, the outlet end of the oxygen pipeline is communicated with the mixing inlet pipeline 300; the methanol solenoid nozzle 130 is installed on the mixture intake duct 300 and is capable of spraying a mist of methanol fuel into the mixture intake duct 300. The mixed intake duct 300 may be an intake duct that is separately provided, or may be an intake duct of an existing internal combustion engine.

It will be appreciated that the methanol injection mechanism should be an auxiliary fuel system for the internal combustion engine. The methanol fuel tank 100 is used for containing a mixed liquid of methanol and water, which is also called methanol fuel, and a fuel filler 101 should be reserved on the corresponding methanol fuel tank 100. A liquid level detection assembly 102 may be disposed within the methanol fuel tank 100 to detect a remaining amount of methanol mixed liquid within the methanol fuel tank 100. Specifically, the liquid level detection assembly 102 may be a float oil gauge, and the float oil gauge may be electrically connected to the oil level display unit 900 and the main control unit 400 to feed back the amount of the methanol fuel to the oil level display unit 900 and the main control unit 400 in real time, so as to facilitate a driver to know the remaining amount of the methanol fuel and the main control unit 400 to control corresponding components according to the remaining amount of the methanol fuel.

The alcohol-tolerant pump 110 is used to create an oil pressure of the methanol fuel so that methanol can be drawn from the methanol fuel tank 100 into the methanol line 120 and create an injection pressure of the methanol solenoid 130. The alcohol-resistant pump 110 is an alcohol-resistant pressure pump that can be used in an alcohol substance and pumps alcohol without being corroded or affected by the alcohol substance. An oil inlet of the alcohol-resistant pump 110 may be provided with a strainer 111 to filter the methanol mixed liquid, thereby preventing impurities from entering the alcohol-resistant pump. The strainer 111 is a coarse filtration strainer.

The methanol pipeline 120 may be provided with a filter 121 adapted to high pressure to perform a secondary filtration on the methanol mixed liquid, so as to prevent impurities in the methanol mixed liquid from blocking the methanol electromagnetic nozzle 130.

The methanol solenoid nozzle 130 includes a solenoid valve whose frequency is adjustable, and a nozzle, and the injection rate of methanol can be adjusted by adjusting the frequency of the solenoid valve. The electromagnetic valve with adjustable frequency means that the on-off frequency of the electromagnetic valve is adjustable, and the speed of the methanol mixed liquid finally sprayed by the nozzle is adjusted by changing the on-off frequency of the electromagnetic valve in unit time. The nozzle should be one that is capable of forming a mist of methanol water. The methanol solenoid nozzle is for the purpose of controlling the flow rate of methanol fuel, and a general nozzle may be used when the flow rate of methanol is not required to be controlled.

The oxygen generator 200 can be a vehicle-mounted oxygen generator, and pure static oxygen is prepared by using a 12v or 24v power supply provided on a vehicle, and is pressurized by an oxygen pressurizing pump 220 and then enters the mixed air inlet pipeline 300. It should be noted that the oxygen generator is used to provide pure oxygen as combustion-supporting gas, and an oxygen tank or the like may also be used as an oxygen source.

The oxygen pressurizing pump 220 is used for pressurizing oxygen so that a proper amount of oxygen can enter an air inlet pipeline of the internal combustion engine with the worm gear pressure boost, and a power mechanism of the oxygen pressurizing pump 220 is provided with a pressurizing pump frequency converter, so that the delivery rate of the oxygen can be adjusted by adjusting the frequency of the pressurizing pump frequency converter.

With continued reference to fig. 1, the methanol fuel tank 100 and the oxygen generator 200 may be disposed side by side, and the air outlet of the oxygen generator 200 is located at the same side as the oil outlet of the methanol fuel tank 100, that is, the methanol pipeline 120 corresponding to the methanol fuel tank 100 and the oxygen pipeline 210 connected to the oxygen generator 200 may be disposed from the same side. Therefore, the two pipelines can be arranged in parallel, and the arrangement of the pipelines is convenient.

Preferably, the methanol fuel tank 100 can be fixedly connected with the oxygen generator 200, that is, both are formed in a fixed form, so as to facilitate the arrangement and installation of both in the vehicle body.

The embodiment of the utility model provides a methanol injection mechanism uses the internal-combustion engine that methanol and diesel oil can mix the burning, can provide a certain amount of methanol as the power supply to the internal-combustion engine through methanol injection mechanism, because methanol compares the price of diesel oil lower, compares the internal-combustion engine of pure diesel oil and practiced thrift the oil consumption expense. And simultaneously, the embodiment of the utility model provides a methanol injection mechanism's oxygen supply subassembly can provide the combustion-supporting oxygen of capacity, and the oxygen of capacity mixes with the vaporific methyl alcohol of methyl alcohol electromagnetic spray nozzle spun, and when getting into the internal-combustion engine like this and burning, the diesel oil in the internal-combustion engine and the mixed combustion of methyl alcohol are abundant, can not produce the oxycarbide of contamination because of the oxygen deficiency, and especially methyl alcohol only produces carbon dioxide and water when burning, can reduce the emission of the oxycarbide of contamination by a wide margin, reaches the environmental protection requirement.

The embodiment still provides an internal-combustion engine, including diesel oil injection mechanism and the utility model provides a methyl alcohol injection mechanism. The mixed gas outlet of the methanol injection mechanism and the oil outlet of the diesel injection mechanism are respectively communicated with a combustion chamber of the internal combustion engine.

It should be noted that both the internal combustion engine and the diesel injection mechanism can be implemented by using the prior art, and are not described herein again.

The beneficial effects of this embodiment internal-combustion engine can be seen in the effect of the methanol injection mechanism that the embodiment of the utility model provides, and no longer repeated here.

Further, this embodiment still provides a car, and the engine of car adopts the embodiment of the utility model provides an internal-combustion engine, also built-in on also promptly the car the utility model provides a methanol injection mechanism.

The beneficial effect of this embodiment car can be seen the utility model discloses the effect of the methyl alcohol injection mechanism that the embodiment provided is no longer repeated here.

The embodiment also provides a methanol and diesel oil mixed combustion control system, which is applied to the internal combustion engine provided by the embodiment. Specifically, the control system comprises a main control unit 400, and a temperature detection assembly 600, an ECU control unit 500 and an accelerator information acquisition assembly 700 which are respectively and electrically connected with the main control unit 400; the main control unit 400 is also electrically connected with the controller of the alcohol-resistant pump 110, the controller of the methanol electromagnetic nozzle 130, the controller of the oxygen generator 200 and the controller of the oxygen pressurizing pump 220 respectively.

The temperature detection assembly 600 may be a temperature sensor installed in a cooling water mechanism of the engine, and configured to detect temperature information of the cooling water of the engine and transmit the acquired temperature information to the main control unit 400. In this embodiment, the temperature sensor mainly detects whether the temperature of the cooling water exceeds a temperature threshold, so as to control the oxygen generator 200 and the alcohol-resistant pump 110 to be turned on when the temperature exceeds the temperature threshold, specifically, the temperature sensor can detect the temperature information by voltage or current, that is, when the temperature of the cooling water reaches a predetermined temperature threshold, the temperature sensor is automatically powered on, the main control power supply detects that the voltage or current of the circuit corresponding to the temperature sensor changes, and then the main control unit 400 can analyze that the temperature of the cooling water reaches the temperature threshold or above through a built-in program. It should be noted that, as shown in fig. 2, the temperature sensor may be connected through a temperature control unit 800 electrically connected to the main control unit 400. The temperature control unit 800 may be a controller integrated with the main control unit 400 on a circuit board and capable of transmitting a temperature signal or having an analysis function, or may be an independently installed controller.

The ECU control unit 500 is used to control the operation of the diesel injection mechanism according to the instructions of the main control unit. The ECU control unit can adopt the ECU control unit of the original vehicle, and the built-in program of the ECU control unit can be adaptively adjusted according to the requirement. The ECU control unit may be integrated with the main control unit 400 on a circuit board, or may be provided independently.

The throttle information collecting assembly 700 is configured to collect throttle information and send the collected throttle information to the main control unit 400. The specific accelerator can be an electronic accelerator (the electronic accelerator can be a variable resistance electronic accelerator, a variable voltage electronic accelerator or a hall electronic accelerator) or an electronic accelerator (the electronic accelerator can be a variable resistance electronic accelerator, a variable voltage electronic accelerator or a hall electronic accelerator) is additionally arranged on the existing accelerator, and the accelerator information acquisition component in the electronic accelerator can be directly used as the accelerator information acquisition component 700 of the embodiment.

The main control unit 400 may be understood as a circuit board composed of a chip or the like in which a vehicle control program is built. The main control unit 400 receives the temperature information sent by the temperature detection assembly 600, and when the temperature value corresponding to the temperature information is greater than the temperature threshold value, the main control unit 400 starts signals to the controller of the alcohol-resistant pump 110 and the controller of the oxygen generator 200; the main control unit 400 receives the throttle information sent by the throttle information collecting assembly 700, and sends action instructions to the ECU control unit 500, the controller of the methanol electromagnetic nozzle 130, and the controller of the oxygen pressurizing pump 220 according to the throttle opening corresponding to the throttle information when the temperature value corresponding to the temperature information is greater than the temperature threshold value.

Further, for the control accuracy, the methanol and diesel fuel co-combustion control system of the embodiment further includes a rotation speed detection component, and the rotation speed detection component is electrically connected to the main control unit 400. The rotating speed detection assembly is used for detecting rotating speed information of the engine and sending the detected rotating speed information to the main control unit. The main control unit 400 receives the rotation speed information, and sends corresponding flow control instructions to the ECU control unit 500, the controller of the methanol electromagnetic nozzle 130, and the controller of the oxygen pressurizing pump 220 according to the accelerator opening corresponding to the accelerator information when the temperature value corresponding to the temperature information is greater than the temperature threshold and the rotation speed corresponding to the rotation speed information exceeds the idle speed threshold.

The specific rotating speed detection component can be an engine rotating speed detection component carried by an original vehicle, and the engine rotating speed detection component is arranged on a rotating shaft of an engine.

Meanwhile, the liquid level detection assembly 102 of the methanol and diesel fuel mixed combustion control system of the embodiment can be electrically connected with the main control unit through the oil level display unit 900. The liquid level detection assembly 102 detects methanol fuel remaining information in the methanol fuel tank 100 and transmits the methanol fuel remaining information to the main control unit 400; the main control unit 400 receives the methanol fuel remaining information, and when the methanol fuel remaining amount corresponding to the methanol fuel remaining information is lower than the methanol fuel remaining amount threshold value, the main control unit 400 outputs a closing signal to the controller of the alcohol-resistant pump 110, the controller of the oxygen generator 200, the controller of the methanol electromagnetic nozzle 130, and the controller of the oxygen pressurizing pump 220, and sends a flow control instruction to the ECU control unit 500.

The instruction priority when the residual quantity of the methanol fuel corresponding to the residual methanol fuel information is lower than the threshold value of the residual quantity of the methanol fuel is higher than the instruction when the temperature value corresponding to the temperature information is higher than the threshold value of the temperature. That is, when the remaining amount of methanol fuel is lower than the threshold value of the remaining amount of methanol fuel, the main control unit does not control the methanol injection mechanism to be opened regardless of the change of other parameter values.

It should be noted that the methanol injection mechanism can be turned on when the temperature of the cooling water of the general engine reaches 70 ℃, and the mode of mixed combustion of methanol and diesel oil is implemented.

According to the methanol and diesel oil mixed combustion control system, when a vehicle is started, the power switch is powered by an ACC gear, and the temperature control unit detects the water temperature change of an engine in real time by utilizing the temperature sensor pre-installed on the cooling liquid pipeline. When the water temperature exceeds 70 ℃, the main control unit controls the methanol oil pump to automatically start, and the oxygen generator also automatically starts. When the driver stepped on the throttle, and when engine speed exceeded the idle state, throttle information acquisition subassembly can be with the data transfer to the main control unit of throttle change, and the main control unit divides three routes signal output after analysis, judgement: one path is still transmitted back to an original vehicle electronic injection control unit (original vehicle ECU control unit); one path of the mixed liquid is transmitted to a methanol electromagnetic nozzle, so that the methanol electromagnetic nozzle can automatically adjust the injection quantity of the methanol mixed liquid along with the change of the size of an accelerator; the other path is transmitted to an oxygen pressurizing pump, and the oxygen supply amount matched with the methanol injection amount is automatically adjusted, so that the injected methanol is fully combusted, and carbon dioxide and water are discharged from the inlet. When the liquid level detection assembly detects that the amount of methanol in the tank is less than the specified lower limit, the main control unit controls the automatic closing of the alcohol-resistant pump, the oxygen generator and the oxygen pressurizing pump, and the throttle signal sent back to the original vehicle ECU control unit is switched to be a complete throttle signal.

The embodiment of the utility model provides a steerable methanol and diesel oil mixed combustion control system just can open alcohol-resistant pump and oxygenerator when the temperature value of engine is greater than the temperature threshold, so guaranteed the ignition process of internal-combustion engine to can avoid methanol low temperature combustion to produce the problem that has the oxycarbide of pollution nature easily to a certain extent. Meanwhile, the main control unit receives the accelerator information, and respectively sends action instructions to the ECU control unit, the controller of the methanol electromagnetic nozzle and the controller of the oxygen pressurizing pump according to the accelerator opening degree corresponding to the accelerator information when the temperature value corresponding to the temperature information is larger than the temperature threshold value, so that the proportion of the supply amount of methanol and diesel oil and the proportion of methanol and oxygen can be adjusted in real time according to different accelerator opening degrees, the energy supply of mixed fuel is maximized, and the full combustion of methanol is ensured.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A methanol injection mechanism is characterized by comprising a methanol supply assembly and an oxygen supply assembly;

the methanol supply component comprises a methanol fuel tank, an alcohol-resistant pump, a methanol pipeline and a methanol nozzle; the methanol fuel tank is internally provided with a methanol pipeline, wherein the methanol pipeline is internally provided with an oil inlet end and an oil outlet end; the oil outlet end of the methanol pipeline is connected with the methanol nozzle;

the oxygen supply assembly comprises an oxygen source, an oxygen pressurizing pump and an oxygen pipeline; the air inlet end of the oxygen pipeline is connected with the oxygen source, and the oxygen pressurizing pump is arranged on the oxygen pipeline;

the air outlet end of the oxygen pipeline is communicated with the jet orifice of the methanol nozzle so as to mix the oxygen with the foggy methanol fuel sprayed by the methanol nozzle.

2. The methanol injection mechanism of claim 1, further comprising a mixing intake conduit;

the air outlet end of the oxygen pipeline is communicated with the mixed air inlet pipeline; the methanol nozzle is arranged on the mixed air inlet pipeline and can spray mist methanol fuel into the mixed air inlet pipeline.

3. The methanol injection mechanism of claim 1, wherein the oxygen source is an oxygen tank or an oxygen generator.

4. The methanol injection mechanism according to claim 1, wherein the power mechanism of the oxygen pressurizing pump is provided with a pressurizing pump frequency converter, and the delivery rate of the oxygen can be adjusted by adjusting the frequency of the pressurizing pump frequency converter;

the methanol fuel injection device is characterized in that the methanol nozzle is a methanol electromagnetic nozzle which comprises a solenoid valve with adjustable frequency and a nozzle, and the injection rate of the methanol fuel can be adjusted by adjusting the frequency of the solenoid valve.

5. The methanol injection mechanism according to any one of claims 1 to 4, wherein a liquid level detection module is provided in the methanol fuel tank, and the liquid level detection module is configured to detect a remaining amount of methanol fuel in the methanol fuel tank.

6. The methanol injection mechanism of any of claims 1-4, wherein the methanol fuel tank is located alongside the oxygen source, and the gas outlet of the oxygen source and the oil outlet of the methanol fuel tank are located on the same side of the methanol fuel tank as the oxygen source.

7. The methanol injection mechanism of any of claims 1-4, wherein the methanol fuel tank is fixedly connected to the oxygen source.

8. An internal combustion engine, characterized in that it comprises a diesel injection mechanism and a methanol injection mechanism according to any one of claims 1 to 7;

and the mixed gas outlet of the methanol injection mechanism and the oil outlet of the diesel injection mechanism are respectively communicated with a combustion chamber of the internal combustion engine.

9. A vehicle, characterized in that the vehicle is provided with a methanol injection mechanism according to any one of claims 1 to 7;

or the vehicle comprising an internal combustion engine according to claim 8.

10. A methanol and diesel oil co-combustion control system is applied to the internal combustion engine as claimed in claim 8, and is characterized by comprising a main control unit, and a temperature detection assembly, an ECU (electronic control unit) control unit and an accelerator information acquisition assembly which are respectively and electrically connected with the main control unit; the main control unit is also respectively and electrically connected with a controller of the alcohol-resistant pump, a controller of the methanol electromagnetic nozzle, a controller of the oxygen generator and a controller of the oxygen pressurizing pump;

the temperature detection assembly is used for detecting the temperature information of the cooling water of the engine and sending the acquired temperature information to the main control unit;

the ECU control unit is used for controlling the operation of the diesel injection mechanism according to the instruction of the main control unit;

the throttle information acquisition component is used for acquiring throttle information and sending the acquired throttle information to the main control unit;

the main control unit receives the temperature information and sends an action instruction to the controller of the alcohol-resistant pump and the controller of the oxygen generator according to the temperature information; and the main control unit simultaneously receives the throttle information and respectively sends corresponding flow control instructions to the ECU control unit, the controller of the methanol electromagnetic nozzle and the controller of the oxygen pressurizing pump according to the throttle information when the temperature value corresponding to the temperature information is greater than the temperature threshold value.