CN101387223B - A fuel-steam hybrid engine - Google Patents

Abstract

The invention discloses a fuel-steam hybrid engine, which mainly separates fuel and steam to perform work in respective cylinders. The steam cylinder is equipped with a water atomizing nozzle, a high-pressure water pump and its driving mechanism, and also controls the fuel cylinder and the steam cylinder. Start/stop control system, the control system includes a temperature analysis module, an integrated control module and a solenoid valve control module connected in sequence, the temperature analysis module and the steam cylinder are connected through a temperature sensor for measuring the temperature in the steam cylinder, and the integrated control The module is connected with the electronic fuel injection system of the fuel cylinder. Since the fuel and steam of the fuel-steam hybrid engine of the present invention are mixed and output through their respective cylinders, there will be no problem of engine stalling due to water injection. Not only The stability of the engine output power is improved, the service life of the engine is prolonged, especially the fuel oil is saved while the engine power output is ensured, and the emission of exhaust gas is reduced.

Description

A fuel-steam hybrid engine

technical field

The invention relates to engine technology, in particular to a fuel-steam hybrid engine.

Background technique

As we all know, the energy generated by the combustion of petroleum products mainly has two parts: one is the kinetic energy generated by the combustion and decomposition of gases resulting in space expansion, and the other is the heat energy released by combustion.

At present, most internal combustion engines generally only use the kinetic energy generated by the space expansion caused by the combustion and decomposition of petroleum products, and the heat energy generated by the combustion of petroleum products is basically useless. It is also necessary to add a special cooling system to the outside of the internal combustion engine. In this way, the heat energy generated by the engine burning oil becomes a burden on the internal combustion engine instead.

With the increasing number of vehicles, the demand for oil has also increased, which has caused a worldwide energy crisis. Not only that, because the exhaust gas generated by the combustion of oil in internal combustion engines needs to be discharged into the atmosphere, it has also caused As for the problem of environmental pollution, it can be seen that how to convert the heat energy generated by the combustion of oil in the internal combustion engine into the kinetic energy of the internal combustion engine, so as to achieve the purpose of saving energy consumption and reducing exhaust emissions, has become a problem that people have always been eager to solve.

In order to solve these problems, people all over the world are looking for various methods. For this reason, people have developed an internal combustion steam engine. It adds water atomization nozzles to the combustion cylinder of the internal combustion engine. Water is sprayed and water mist is generated. At this time, the heat generated by fuel combustion is absorbed by the water mist, which heats the water mist and turns it into high-temperature steam. The high-temperature steam expands and does work. The engine works under the action of fuel and steam. Push the piston to make the engine output more power, but because the timing of fuel and water injection is basically synchronized, it is easy to cause the engine to suddenly turn off and stop running during operation, resulting in unstable engine operation and increased mechanical failure of the engine. probability of failure.

Contents of the invention

The object of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, and provide a fuel-steam hybrid engine with continuous output power, stable operation and effective fuel saving.

The purpose of the present invention is achieved through the following technical solutions: a fuel-steam hybrid engine, comprising a fuel cylinder, a steam cylinder, and a water tank, and the fuel cylinder and the steam cylinder are respectively connected to the fuel-steam hybrid engine through a crank connecting rod mechanism. The main shaft is connected, and the fuel-steam hybrid engine also includes the control system of the fuel cylinder and the steam cylinder, and the fuel cylinder includes a cooling water circulation sleeve set outside the cylinder body of the fuel cylinder and an exhaust gas discharge port arranged on the cylinder head of the cylinder body , the cylinder head of the steam cylinder block is provided with an exhaust gas outlet, and the steam cylinder is also provided with a high-pressure water pump and a driving mechanism of the high-pressure water pump, and the driving mechanism is connected with the main shaft of the fuel-steam hybrid engine, so The high-pressure water pump is provided with a low-pressure water inlet and a high-pressure water outlet. The low-pressure water inlet is provided with a valve that is opened when the high-pressure water pump draws water and closed when the high-pressure water pump drains water. A valve that is closed when water is pumped and opened when the high-pressure water pump discharges water. The cylinder head of the steam cylinder is also provided with a water atomization nozzle, and a part of the water atomization nozzle extends into the cylinder body of the steam cylinder through the cylinder head , the water atomizing nozzle is provided with a solenoid valve to control its opening/closing, the water atomizing nozzle communicates with the high-pressure water outlet of the high-pressure water pump through a pipeline, and the low-pressure water inlet of the high-pressure water pump communicates with the water tank through a pipeline, The cylinder body of the steam cylinder is also covered with an exhaust gas circulation sleeve. One side of the exhaust gas circulation sleeve is provided with a high-temperature exhaust gas inlet, and the other side is provided with a cooling exhaust gas outlet. The high-temperature exhaust gas inlet is connected to the The high-temperature exhaust gas outlet of the fuel cylinder is connected, and the control system includes a temperature analysis module, an integrated control module, and a solenoid valve control module that are sequentially connected by signals. The temperature sensor of the integrated control module is connected with the electronic injection system of the fuel cylinder.

The driving mechanism of the high-pressure water pump includes a cam, a driving gear and a transmission gear meshing with each other, the cam is arranged in the middle of the transmission gear, and the driving gear is connected with the main shaft of the engine.

When the steam cylinder starts to work, the driving mechanism of the water pump is driven by the main shaft of the engine, and the high-pressure water pump draws the cooling water in the water tank through the pipe connecting the low-pressure water inlet and the water tank, and then the water pump passes through the high-pressure water outlet and the water atomization nozzle The connected pipe discharges the extracted cooling water to the water atomizing nozzle and sprays it into the steam cylinder. Specifically, the body of the water pump is provided with a piston rod, and the action of the water pump to draw cooling water depends on the rotation of the cam, which makes the piston rod in the water pump reciprocate. A spring is installed on the upper part, and the tension of the spring makes the piston rod run out of the water pump body when it is not pushed by the cam. A water pump works similar to how a hand pump works. That is to say, when the water pump pumps water, it relies on the spring installed in it to generate tension, so that when the piston rod is pulled back, the valve set at the high-pressure water outlet is automatically closed, and the valve set at the low-pressure water inlet is automatically opened. Under the action of the water tank, the water in the water tank is sucked into the pump body through the pipeline. When the piston rod completes the pull-back stroke, the cam pushes the piston rod into the pump body through the cam, so that the high-pressure water pump starts to drain water, and the space in the pump body At this time, under the action of the thrust of the piston rod, the valve set at the high-pressure water outlet is automatically opened, and the valve set at the low-pressure water inlet is automatically closed, so that the cooling water in the water tank is sprayed into the water tank through the water atomizing nozzle. Inside the steam cylinder.

The function of the exhaust gas circulation sleeve is: because the exhaust gas discharged from the fuel cylinder is the high-temperature gas produced after the fuel is burned and done work, the high-temperature gas passes through the pipeline and the high-temperature exhaust gas inlet of the exhaust gas circulation sleeve set outside the steam cylinder, Enter the exhaust gas circulation sleeve to heat the steam cylinder to make it warm up.

The working process of the fuel-steam hybrid engine of the present invention:

Start the engine. At the beginning, four fuel cylinders work. The high-temperature exhaust gas produced by the fuel cylinder after burning fuel is transmitted through the high-temperature exhaust outlet through the pipeline to the high-temperature exhaust gas inlet of the exhaust gas circulation sleeve set outside the steam cylinder, and enters the exhaust gas circulation sleeve. In the chamber of the two steam cylinders, heat the two steam cylinders to make them warm up; at this time, the temperature analysis module of the control system measures the temperature of the two steam cylinders from time to time through the temperature sensor. When the temperature is higher than 200 degrees, the comprehensive analysis module will synchronously send an instruction to the EFI system to stop the work of the two fuel cylinders and send a command to the solenoid valve control module to open the solenoid valve of the water atomization nozzle to spray atomized water into the two steam cylinders At this time, the fuel oil burned in the two fuel cylinders and the atomized water injected by the two steam cylinders generate space expansion to do work, and the piston is pushed under the joint action of the fuel oil and steam to make the engine output power;

When the temperature analysis module obtains the temperature information that the temperature in the two steam cylinders is lower than 200 degrees through the temperature sensor, it will pass the information to the integrated control module, and then the integrated control module will control the EFI system and solenoid valve The module sends commands, among which the command sent to the EFI system is to restart the above two stopped fuel cylinders, and the command sent to the solenoid valve control module is to close the solenoid valve of the water atomization nozzle to stop the fuel injection into the two steam cylinders. Instructions for injecting atomized water, at this time the two steam cylinders stop working, and the engine resumes the work of the four fuel cylinders at the beginning.

Through the repeated cycle of the above working process, the piston is pushed to make the engine output power.

Compared with the prior art, the present invention has the following advantages and beneficial effects: the existing fuel steam engine sprays water into the cylinder while burning fuel to generate gas expansion, so that the time of fuel and water injection is basically synchronized At this time, the two-stroke or four-stroke of the engine is not completely over, which will easily cause the engine to stall, but the fuel and steam of the fuel-steam hybrid engine of the present invention complete the mixed output of power through their respective cylinders, so there will be no fuel injection due to injection. The water causes the engine to stall, which not only improves the stability of the engine output power, but also prolongs the service life of the engine and reduces the probability of engine failure.

It can be seen that the present invention can not only effectively convert the heat energy generated by the engine burning oil into the kinetic energy for driving the engine, but also improves the utilization efficiency of energy, saves fuel, reduces the emission of exhaust gas, and improves the environment.

In addition, the invention is simple, economical and practical, convenient for installation and debugging, and convenient for market promotion.

Description of drawings

Fig. 1 is a schematic structural view of a steam cylinder of a fuel-steam hybrid engine of the present invention.

Fig. 2 is a schematic structural view of a fuel tank of a fuel-steam hybrid engine of the present invention.

Fig. 3 is a schematic diagram of the control system and control flow of the fuel-steam hybrid engine of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

The hybrid engine of the present invention is that two cylinders are steam cylinders in the existing six-cylinder engine, and the structure of the steam cylinder is the same as that of the existing fuel cylinder and other connection modes except the following features.

As shown in Fig. 1, Fig. 2 and Fig. 3, the fuel-steam hybrid engine of the present invention includes a fuel cylinder, a steam cylinder, and a water tank, and the fuel cylinder and the steam cylinder communicate with the fuel vapor through crank linkages 6, 23 respectively. The main shaft (not shown) of hybrid engine is connected, and this fuel-steam hybrid engine also includes the control system of fuel cylinder and steam cylinder, and described fuel cylinder comprises the cooling water circulation cover 22 that is enclosed within fuel cylinder block 25 and The exhaust gas outlet 19 and the air inlet 24 arranged on the cylinder head 20 of the cylinder body 25, the cooling water circulation sleeve 22 is provided with an interface 21, and the interface 21 communicates with the interface 16 of the water tank 17 through a pipeline (not shown in the figure) , the cylinder head 2 of the steam cylinder block 3 is provided with an exhaust gas outlet 1, and the steam cylinder is also provided with a high-pressure water pump 9 and a driving mechanism of the high-pressure water pump, and the driving mechanism is connected with the fuel-steam hybrid engine The main shaft is connected, and the high-pressure water pump 9 is provided with a low-pressure water inlet 10 and a high-pressure water outlet 11, and the low-pressure water inlet 10 is provided with a valve that is opened when the high-pressure water pump 9 draws water and is closed when the high-pressure water pump 9 drains water (Fig. not shown), the high-pressure water outlet 11 is provided with a valve that is closed when the high-pressure water pump 9 pumps water and opened when the high-pressure water pump discharges water, and the cylinder head 2 of the steam cylinder body is also provided with a water mist The atomization nozzle 14, a part of the water atomization nozzle 14 extends into the cylinder body 3 of the steam cylinder through the cylinder head 2, and the water atomization nozzle 14 is provided with a solenoid valve 15 to control its opening/closing, and the water atomization nozzle 14 The high-pressure water outlet 11 of the high-pressure water pump 9 is communicated with through the pipeline 12, and the low-pressure water inlet 10 of the high-pressure water pump 9 is communicated with the water tank 17 through the pipeline 18. The cylinder body 3 of the steam cylinder is also provided with an exhaust gas circulation sleeve 5. One side of the exhaust gas circulation sleeve 5 is provided with a high-temperature exhaust gas inlet 4, and the other side is provided with a cooling exhaust gas outlet 13. The high-temperature exhaust gas inlet 4 is connected to the fuel tank through a pipeline (not shown in the figure). The high-temperature exhaust gas outlet 19 is communicated, and the control system includes a temperature analysis module, an integrated control module, and a solenoid valve control module connected by signals in sequence, and a temperature sensor for measuring the temperature in the steam cylinder is also provided between the temperature analysis module and the steam cylinder. sensor, the integrated control module is connected with the electronic injection system of the fuel cylinder.

The driving mechanism of the high-pressure water pump 9 includes a cam 8, a driving gear 7 and a transmission gear 71 meshing with each other, the cam 8 is arranged in the middle of the transmission gear 71, and the driving gear 7 is connected with the main shaft of the fuel-steam hybrid engine. When the steam cylinder started to work, the driving mechanism of the high-pressure water pump 9 was driven by the main shaft of the engine, and the high-pressure water pump 9 extracted the cooling water in the water tank 17 through the pipeline 18 connected to the water tank 17 through its low-pressure water inlet 10, and then the high-pressure water pump 9 passed through The pipe 12 whose high-pressure water outlet 11 is connected with the water atomizing nozzle 14 delivers the extracted cooling water to the water atomizing nozzle 14 and sprays it into the steam cylinder. Specifically, the body of the high-pressure water pump 9 is provided with a piston rod (not shown in the figure). The action of the high-pressure water pump 9 to extract cooling water is to rely on the rotation of the cam 8 to make the piston rod in the high-pressure water pump 9 reciprocate. The liquid-tight cooperation between the high-pressure water pump 9 bodies, a spring (not shown) is installed above the end of the piston rod extending into the high-pressure water pump 9 body, and the tension of the spring makes the piston rod when it is not pushed by the cam. Run outside the high-pressure water pump 9 body. The working principle of the high-pressure water pump 9 is similar to that of a manual air pump. That is to say, when the high-pressure water pump 9 pumps water, it relies on the spring installed in it to generate tension, and when the piston rod is pushed outward, the valve that is arranged on the high-pressure water outlet 11 is automatically closed, and the valve that is arranged on the low-pressure water inlet 10 is automatically closed. Open, that is, under the action of the vacuum principle, the water in the water tank 17 is sucked into the body of the high-pressure water pump 9 through the pipeline 18, and when the piston rod completes the pumping stroke, the piston rod is pushed by the cam 8 to run in the body of the high-pressure water pump 9, The high-pressure water pump 9 starts to drain water, and the space in the high-pressure water pump 9 body is squeezed. At this time, the water generates a thrust under the action of the piston rod, and the valve arranged at the high-pressure water outlet 11 is automatically closed, so that the valve arranged at the low-pressure water outlet 11 is automatically closed. The valve of the water inlet 10 is automatically opened, so that the cooling water in the water tank 17 is sprayed into the steam cylinder through the water atomizing nozzle 14 .

The valve on the described high-pressure water pump 9 is actually a check valve, and the check valve is also called a one-way valve or a check valve, and its function is to prevent the medium (water) in the pipeline from flowing backward.

Certainly the power source of high-pressure water pump 9 pumping and draining also can cooperate to realize by setting motor in addition, so just can save the driving mechanism of high-pressure water pump 9.

The function of the exhaust gas circulation sleeve 5 of the steam cylinder is: since the exhaust gas discharged from the fuel cylinder head 20 is the high-temperature gas produced after the fuel is burned and done work, the high-temperature gas passes through the pipeline (not shown), and passes through the The high-temperature exhaust gas inlet port 4 of the exhaust gas circulation sleeve 5 set outside the steam cylinder enters the chamber of the exhaust gas circulation sleeve 5 to heat the steam cylinder to make it warm up, and then passes through the cooling exhaust gas installed on the other side of the exhaust gas circulation sleeve 5 The exhaust port 13 discharges the exhaust gas after heating the steam cylinder.

Fig. 3 shows the course of work of the fuel-steam hybrid engine of the present invention:

Start the engine. At the beginning, four fuel cylinders work. The high-temperature exhaust gas produced by the fuel cylinders after burning fuel is transmitted to the exhaust gas circulation sleeve 5 outside the steam cylinder through the high-temperature exhaust gas outlet 19 through the pipeline (not shown). The high-temperature exhaust gas enters the port 4, enters the chamber of the exhaust gas circulation sleeve 5, and heats the two steam cylinders (only one shown in the figure) at high temperature to make them warm up; The temperature of the two steam cylinders is measured from time to time, and when the temperature in the two steam cylinders is measured to be higher than 200 degrees, the comprehensive analysis module will synchronously send an instruction to stop the operation of the two fuel cylinders to the EFI system and send an instruction to the electromagnetic control module Issue an instruction to open the solenoid valve of the water atomization nozzle to spray atomized water into the two steam cylinders; Under the joint action of steam and steam, the piston is pushed to make the engine output power;

When the temperature analysis module obtains the temperature information that the temperature in the two steam cylinders is lower than 200 degrees through the temperature sensor, it will pass the information to the integrated control module, and then the integrated control module will control the EFI system and solenoid valve The module sends commands, among which the command sent to the EFI system is to restart the above two stopped fuel cylinders, and the command sent to the solenoid valve control module is to close the solenoid valve of the water atomization nozzle to stop the fuel injection into the two steam cylinders. Instructions for injecting atomized water, at this time the two steam cylinders stop working, and the engine resumes the work of the four fuel cylinders at the beginning.

Through the repeated cycle of the above working process, the piston is pushed to make the engine output power.

As described above, the present invention can be preferably carried out. The above-mentioned embodiment is only a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions and combinations made without departing from the spirit and principle of the present invention , simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present invention.

Claims (2)

1. A fuel-steam hybrid engine, comprising a fuel cylinder, a steam cylinder, and a water tank, and the fuel cylinder and the steam cylinder are respectively connected with the main shaft of the fuel-steam hybrid engine through a crank linkage, and the fuel cylinder includes a set The exhaust gas discharge port on the cylinder head of the cylinder body, the cylinder head of the steam cylinder body is provided with a waste gas discharge port, and the steam cylinder is also provided with a high-pressure water pump and a driving mechanism of the high-pressure water pump, and the steam cylinder body The cylinder head is also provided with a water atomizing nozzle, which is characterized in that it also includes a control system for a fuel cylinder and a steam cylinder, the fuel cylinder includes a cooling water circulation sleeve set outside the fuel cylinder body, the drive mechanism and the The main shaft of the fuel-steam hybrid engine is connected, the high-pressure water pump is provided with a low-pressure water inlet and a high-pressure water outlet, and the low-pressure water inlet is provided with a valve that opens when the high-pressure water pump pumps water and closes when the high-pressure water pump drains water, The high-pressure water discharge port is provided with a valve that is closed when the high-pressure water pump pumps water and opened when the high-pressure water pump discharges water. A part of the water atomization nozzle extends into the cylinder body of the steam cylinder through the cylinder head. There is a solenoid valve to control its opening/closing, the water atomizing nozzle communicates with the high-pressure water outlet of the high-pressure water pump through a pipeline, the low-pressure water inlet of the high-pressure water pump communicates with the water tank through a pipeline, and the cylinder body of the steam cylinder The exterior is also covered with an exhaust gas circulation sleeve. One side of the exhaust gas circulation sleeve is provided with a high-temperature exhaust gas inlet, and the other side is provided with a cooling exhaust gas outlet. The high-temperature exhaust gas inlet passes through the pipeline and the high-temperature exhaust gas outlet of the fuel tank. connected, the control system includes a temperature analysis module, an integrated control module and a solenoid valve control module that are sequentially connected by signals, and a temperature sensor for measuring the temperature in the steam cylinder is also arranged between the temperature analysis module and the steam cylinder, and the integrated The control module is connected with the electronic fuel injection system of the fuel cylinder. 2. The fuel-steam hybrid engine according to claim 1, characterized in that: the driving mechanism of the high-pressure water pump comprises a cam, a driving gear and a transmission gear meshing with each other, the cam is arranged in the middle of the transmission gear, and the The drive gear is connected to the main shaft of the fuel-steam hybrid engine.

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