KR20120017999A

KR20120017999A - Restoration device of surplus energy for the internal combustion engine

Info

Publication number: KR20120017999A
Application number: KR1020100081022A
Authority: KR
Inventors: 이문일
Original assignee: 이문일
Priority date: 2010-08-20
Filing date: 2010-08-20
Publication date: 2012-02-29

Abstract

PURPOSE: A device for reducing excessive heat energy of an internal combustion engine is provided to keep the temperature of an internal combustion engine constant using an opening/closing valve, which can control an opened/closed level depending on a change in a temperature. CONSTITUTION: A device for reducing excessive heat energy of an internal combustion engine comprises a housing(1) and pressure controlling units(4-1,4-2). The housing comprises an inlet, a discharge port, and an outlet. The inlet receives hot cooling water. The discharge port discharges the cooling water to a radiator. The outlet is formed between the inlet and the discharge port, the cooling water flows in the outlet. The pressure controlling units are installed in the housing. The pressure controlling units continuously control the amount of cooling water discharged to the discharge port depending on changes in the temperature and pressure of the cooling water.

Description

Surplus thermal energy reduction device of internal combustion engine {RESTORATION DEVICE OF SURPLUS ENERGY FOR THE INTERNAL COMBUSTION ENGINE}

The present invention relates to an excess heat energy reduction apparatus of an internal combustion engine, and more particularly, to an excess heat energy reduction apparatus of an internal combustion engine that improves efficiency by using excess heat to drive another apparatus while maintaining the internal combustion engine in a predetermined temperature range. will be.

Internal combustion engines, which are widely used for driving a vehicle, have to be operated at a predetermined temperature range for good efficiency. Since a representative example of an internal combustion engine is a vehicle engine, a vehicle engine will be described as an example.

In general, the combustion gas temperature in the engine of the vehicle is about 2,000 to 2,500, and a significant amount of this heat is conducted to the cylinder walls, cylinder heads, piston valves, and the like. At this time, if the temperature of the conducted heat rises too much, the strength of the component is lowered and a failure occurs or the life thereof is shortened, and the output is lowered due to knocking or premature ignition due to the combustion state.

On the other hand, if the engine is excessively cooled, the amount of heat lost by cooling is high, so the engine efficiency is lowered, and thus the fuel consumption is increased. Therefore, it is important to maintain the engine temperature at about 85 to 95. To this end, the engine of the vehicle is equipped with a cooling device using a thermostat.

1 is an illustration of a thermostat for a radiator according to the prior art.

The thermostat used in the cooling system allows the circulation flow path formed along the circumference of the engine, not shown, to be selectively opened and closed according to the temperature of the coolant, thereby circulating the coolant through the radiator to prevent overheating or overcooling of the engine. You can do it.

The thermostat 500 is the inlet 511 and the bypass port 512 is formed on one side and the outlet 513 formed in the thermostat housing 510 integrally formed on the other side of the thermostat operating part 520 Is installed, the thermostat operating part 520 is the edge of the main valve 521 is fixed to the inner surface of the thermostat housing 510, the lower portion of the main valve 521 main valve spring 522 is The bypass valve 524 is interposed and coupled to the lower end of the main valve spring 522 to receive the elastic force of the separate bypass spring 523 to be in a vertical direction.

When the temperature of the coolant introduced through the inlet 511 is lower than or equal to a predetermined temperature, the main valve 521 is closed and the bypass valve 524 is opened by the elastic force of the bypass spring 523, thereby cooling the coolant. Bypass is bypassed through the bypass port 512, when the temperature of the coolant flowing through the inlet 511 is a predetermined temperature or more, the main valve 521 is opened while the bypass valve 524 is closed Accordingly, the cooling water is circulated in the state of being cooled by the cooling fan in the process of passing through the radiator through the outlet 513.

However, since the conventional thermostat performs binary operation only by the on / off operation of the main valve, it is difficult to maintain the internal combustion engine in a constant temperature range. That is, a thermostat operating from off to on based on 90 will be described as an example. The engine's temperature is low at start-up, so the main valve on the thermostat remains closed. Then, when the temperature inside the engine rises slowly and 90 is sensed, the main valve opens and the engine temperature is rapidly cooled. However, since the temperature near the cylinder where the explosion occurs is much higher than the temperature near the thermostat, even if the thermostat is operated when the main valve starts to open, the cylinder is cycled until the cooled coolant returns after circulating the radiator. The vicinity has a problem of maintaining a much higher temperature state for a considerable time.

Another point that needs to be reconsidered in the internal combustion engine using a conventional thermostat is that the heated cooling water can only be used for cooling after reaching the radiator. In other words, the coolant of high temperature contains a considerable amount of energy, but it only plays a role of blowing it into the air using a thermostat.

The present invention is to solve the above problems, an object of the present invention is to provide an excess thermal energy reduction device of an internal combustion engine that can be opened and closed linearly with the temperature change of the cooling water.

The present invention has been made to solve the problem that most of the heat other than the energy required for power is discharged and dissipated through the cooling device in the process of obtaining power from the internal combustion engine through a four-stroke, the object of the present invention is to compress the heat released By converting the structure, the heat of release can be concentrated so that the coolant, a medium for energy transfer, can be maintained at a constant pressure and at a temperature suitable for energy efficiency. This is to provide a device that effectively performs a role like a thermostat as a better structure, and obtains energy by energy regeneration and reduction at the same time due to the reduction device.

It is still another object of the present invention to provide an excess heat energy reduction device of an internal combustion engine that can be easily installed in a cooling device pre-installed in a vehicle and that is capable of regenerating and converting energy by using emission heat for an internal combustion engine using a water-cooled cooling device. It is.

An object of the present invention is an internal combustion engine surplus thermal energy reduction device that receives a high-temperature cooling water from the water jacket of the cylinder of the internal combustion engine and then selectively discharges it toward the radiator, an inlet for receiving the high-temperature cooling water introduced, and the inlet passage A discharge port for discharging the introduced cooling water in the direction of the radiator, and is connected between the inlet port and the discharge port, and formed in the housing part to form an outlet passage through which the cooling water flows; It can be achieved by the internal combustion engine surplus heat energy reduction device characterized in that it comprises a pressure regulating device for continuously adjusting the amount of cooling water discharged to the discharge port in accordance with the temperature and pressure change of the.

Surplus thermal energy reduction apparatus of the internal combustion engine according to the present invention has the advantage that the internal combustion engine temperature can be kept constant by adopting an on-off valve in which the opening and closing amount is adjusted according to the temperature change, unlike the thermostat operating in the conventional binary method.

In addition, the surplus thermal energy reduction device according to the present invention is configured to be installed in a cooling device pre-installed in a vehicle, it is possible to reduce the energy obtained from the heat emitted through the reduction device to the power by connecting to the alternator. As a result, the fuel efficiency is increased by the energy obtained, and the cooling water, which is a medium of energy transfer, has a cooling effect as much as energy is lost, and the cooling device efficiency is increased through a reduction device.

According to the excess thermal energy reduction device of the internal combustion engine according to the present invention, the pressure and temperature lowered at the time of departure and departure through the inlet compression structure of the reduction device is configured to push the pressure control plate after a certain pressure rise by the pressure control plate spring, Afterwards, even while driving, the pressure control panel enables constant pressure and temperature control in real time. This can not only fully play the same role as the thermostat, but can also reduce the sudden increase in temperature, thereby sufficiently increasing the durability of the internal combustion engine.

In addition, it is configured to deliver enough energy to the cooling water, which is a medium for energy transfer, through the compression structure, and the energy is obtained through the impeller at the same time as energy recovery and conversion of the discharge heat is generated. This increases the cooling efficiency.

1 is an illustration of a thermostat for a radiator according to the prior art.
2 is a block diagram of a vehicle engine and a cooling device including a surplus thermal energy reduction device of an internal combustion engine according to an embodiment of the present invention.
3 is a cross-sectional view of a state in which all of the one-way check valve and the pressure regulator block to prevent the cooling water from flowing into the radiator when the temperature of the cooling water is low in the internal combustion engine surplus thermal energy reduction device according to the present invention.
Figure 4 is a cross-sectional view of the one-way check valve is open and the pressure regulating device in the internal combustion engine surplus thermal energy reduction apparatus according to the present invention.
Figure 5 is a cross-sectional view showing a state in which the one-way check valve is closed and the pressure regulating device in the internal combustion engine surplus thermal energy reduction device according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the advantages, features and preferred embodiments of the present invention.

Excess thermal energy reduction apparatus of the internal combustion engine according to the present invention is a device for converting the excess heat into kinetic energy for recycling while maintaining the temperature of the internal combustion engine in an appropriate range. Hereinafter, a description will be given of an excess heat energy reduction apparatus of an internal combustion engine according to an embodiment of the present invention, for example, an automobile engine that is a representative internal combustion engine.

2 is a block diagram of a vehicle engine and a cooling device including a surplus thermal energy reduction device of an internal combustion engine according to an embodiment of the present invention. The excess thermal energy reduction device (referred to as " reduction device " in Fig. 2) of the internal combustion engine according to the present invention is provided at the position of the conventional thermostat in the vehicle cooling device. The surplus thermal energy reduction device according to the present invention has a function of blocking the coolant from flowing to the radiator when the temperature of the internal combustion engine coolant is low, and gradually increasing the amount of coolant discharged to the radiator when the coolant temperature gradually rises. do. In the case of the conventional thermostat, only the on / off binary operation operates, the excess thermal energy reduction apparatus of the internal combustion engine of the present invention has an advantage of continuously adjusting the amount of cooling water according to temperature change.

When the engine is first started, the coolant temperature and pressure are low. In this case, since the cooling water exiting the water jacket around the cylinder has a low temperature, the reducing device of the present invention blocks the cooling water exiting to the radiator. At this time, the flow of the cooling water is circulated only in the water jacket through the water pump.

Then, as the temperature of the engine increases, the temperature and pressure of the cooling water increase, and the reducing device of the present invention gradually increases the amount of cooling water flowing to the radiator. In the case of the conventional thermostat, when the temperature is above a certain temperature, the valve is completely opened, but the reducing device according to the present invention increases the amount of cooling water flowing into the radiator continuously according to the temperature change. When the temperature and pressure of the cooling water rises, the flow of the cooling water is explained in FIG. 2, after the cooling water circulated through the water jacket passes through the surplus thermal energy reduction device of the internal combustion engine according to the present invention and then is cooled by the radiator through the radiator lake. It is then circulated through the water pump to the water jacket.

The passage circulated to the heater hose and the heater core shown in the drawings is a passage for selectively circulating when the vehicle driver turns on the heater and is not related to the present invention, and thus detailed description thereof will be omitted.

3, 4 and 5 are cross-sectional views of the internal combustion engine surplus thermal energy reduction apparatus according to the present invention. 3 is a view showing a state in which both the one-way check valve and the pressure regulating device are blocked so that the cooling water does not flow into the radiator when the temperature of the cooling water is low in the internal combustion engine surplus thermal energy reduction device according to the present invention, and FIG. In the internal combustion engine surplus heat energy reduction apparatus according to the present invention, the one-way check valve is opened and the pressure regulating device is shown in a closed state. It shows the open state.

The internal combustion engine surplus thermal energy reduction device of the present invention is connected to the water jacket side of the internal combustion engine cylinder inlet (2) for receiving the coolant, discharge port (3) for discharging the introduced coolant through the radiator hose to the radiator, and the inlet ( It is provided between the 2) and the discharge port (3), the inside provides a cooling water circulation passage and the housing portion having a unidirectional check valve 10, pressure regulators (4-1, 4-2) and the impeller (5) It consists of (1). In the internal combustion engine surplus thermal energy reduction apparatus according to the present invention, the cross-sections of the inlet 2 and the discharge port 3 are provided in a square shape. Therefore, in order to connect the inlet (2) and the discharge port (3) having a rectangular cross-section, such as a radiator hose, a separate adapter, etc. will be required, which will be omitted.

Inside the housing part 1 near the inlet 2, a unidirectional check valve 10 is installed, which opens as the pressure of the cooling water increases. The one-way check valve 10 is opened by rotating in the direction of the discharge port 3 through a rotational movement through the hinge 9 provided at the upper side, and a stopper at the lower end of the front in order to prevent opening in the inlet 2 direction. 11) was installed separately. The unidirectional check valve 10 has a temperature and pressure of the coolant between the unidirectional check valve 10 and the pressure regulating devices 4-1 and 4-2 than the temperature and pressure of the coolant circulating in the internal combustion engine water jacket. If it is lowered, it remains closed, and if it is higher than the temperature and pressure of the cooling water circulating in the internal combustion engine water jacket, it is opened.

Inwardly at the inlet 2, pressure regulators 4-1 and 4-2 were installed. The pressure regulators 4-1 and 4-2 are devices for continuously increasing the amount of cooling water flowing in the discharge port direction by bending more and more in the discharge port direction as the pressure and temperature of the cooling water increase. Since the cooling water flow can be continuously adjusted according to the temperature change, there is an effect of reducing the sudden drop in temperature generated in the conventional thermostat. In the embodiment of the present invention, the two leaf springs 4-1 and 4-2 are symmetrically installed with a certain distance open as a pressure regulating device. In the embodiment, the screw coupling method using the nut 7 and the bolt 8 is provided, but it is also possible to attach the inner wall of the housing part by welding.

By adjusting the distance between the position of the unidirectional check valve installed in the apparatus and the leaf spring of the pressure regulating device, a constant power can be given and the time taken to reach the proper temperature of the internal combustion engine can be reduced.

The material of leaf spring is special steel with elasticity, and it is good to be composed of material with long life and cost performance. Suitable materials include duplex steel, titanium, and STS316. These special steels have the properties of being able to withstand high heat, and the properties of the material do not change even if they are maintained at high temperatures for a long time.

In the center part of the housing part 1, the rotating shaft 6 which a part protrudes outside is penetrated, and the impeller 5 was installed in this rotating shaft. When the temperature and pressure of the cooling water are increased, as shown in FIG. 4, the revolving door 10 is opened in the discharge port 3 direction, and the leaf springs 4-1 and 4-2 are bent in the discharge port direction to inflow the cooling water. This will increase. The introduced coolant has a high temperature and has a high speed while passing through the pressure regulating devices 4-1 and 4-2. The coolant flowing at such a high speed rotates the impeller 5 in a counterclockwise direction, and the rotation shaft 6 rotates by the rotation of the impeller 5. In this case, by configuring a power transmission device (for example, a pulley and a belt) for driving a generator (not shown) on the rotating shaft 6 protruding outward, the energy of the coolant having a high temperature can be recycled before being discharged from the radiator. There is this. The heat energy of the coolant is converted into rotational kinetic energy of the impeller by the energy recycling, thereby cooling the coolant at a high temperature and supplying energy to an external generator or the like to increase the efficiency of the internal combustion engine.

3, 4 and 5 will be briefly described the operation of the internal combustion engine surplus thermal energy reduction apparatus according to the present invention. Before starting, the unidirectional check valve 10 and the pressure regulators 4-1 and 4-2 remain closed as shown in FIG. 3. When the internal combustion engine is started, the temperature and pressure of the coolant circulated by the fuel pump to the water jacket around the cylinder are increased, and as shown in FIG. 4, the one-way check valve 10 is opened while the coolant is pressurized. To the regulating devices 4-1 and 4-2. Then, if the internal combustion engine continues to operate while the pressure regulators 4-1 and 4-2 remain almost closed, between the unidirectional check valve 10 and the pressure regulators 4-1 and 4-2. Since the pressure of the cooling water introduced into the cooling water increases outside the inlet 2, the check valve 10 is closed again. If the internal combustion engine continues to operate, the temperature and pressure of the coolant flowing between the one-way check valve 10 and the pressure regulators 4-1 and 4-2 increase, and eventually, as shown in FIG. In the valve 10, the coolant remaining between the unidirectional check valve 10 and the pressure regulators 4-1 and 4-2 while the pressure regulators 4-1 and 4-2 are opened in the closed state is impeller ( It is discharged in the discharge port 3 direction while rotating 5) counterclockwise. Again, since the temperature and pressure of the coolant introduced between the one-way check valve 10 and the pressure regulators 4-1 and 4-2 are lowered, the one-way check valve 10 and the pressure control as shown in FIG. Due to the opening and closing of the devices 4-1 and 4-2, the coolant flowed in between the one-way check valve 10 and the pressure regulating devices 4-1 and 4-2, and then, as shown in FIG. The operation discharged by opening and closing the check valve 10 and the pressure regulators 4-1 and 4-2 is repeated. When the internal combustion engine is operated for a longer time, both the unidirectional check valve 10 and the pressure regulating devices 4-1 and 4-2 are finally opened, and in this case, the coolant introduced into the inlet 2 Immediately after turning, it is discharged to the discharge port 3.

In the internal combustion engine surplus heat energy reduction device according to the present invention, since the opening degree of the pressure regulating device (4-1, 4-2) is determined according to the temperature of the cooling water and the height of the pressure, the temperature of the internal combustion engine than when adopting a conventional thermostat The effect can be kept more constant. In addition, the high temperature cooling water drives the impeller 5, and the rotating shaft 6 of the impeller 5 is connected to a device such as an external generator to recycle energy.

When the engine stops operating, the temperature and pressure of the coolant are gradually dropped, and thus the pressure regulators 4-1 and 4-2 and the one-way check valve 10 are gradually closed to maintain the initial state.

While the preferred embodiments of the present invention have been described using specific terms, such descriptions are for illustrative purposes only, and it is understood that various changes and modifications may be made without departing from the spirit and scope of the following claims. Should be done.

1: housing part 2: inlet port
3: outlet 4-1, 4-2: pressure regulating device
5: impeller 6: rotating shaft
7: nut 8: bolt
9: hinge 10: one-way check valve
11: stopper

Claims

An internal combustion engine surplus thermal energy reduction device that receives high-temperature cooling water from a water jacket of a cylinder of an internal combustion engine and selectively flows out toward a radiator,
An inlet for receiving high temperature coolant introduced therein and a discharge port for discharging the coolant introduced to the inlet in the direction of a radiator, the outlet being connected between the inlet port and the discharge port and having an outlet passage through which the coolant flows; Housing part,
And a pressure regulating device installed in the housing part and continuously controlling an amount of the cooling water discharged to the discharge port according to a change in temperature and pressure of the flowing cooling water.

The method of claim 1,
An internal combustion further comprising a rotating shaft, a part of which protrudes out of the housing and is disposed across the inside of the housing, and an impeller positioned inside the housing and connected to the rotating shaft to rotate about the rotating shaft. Engine surplus thermal energy reduction device.

3. The method according to claim 1 or 2,
And an unidirectional check valve installed between the inlet and the pressure regulating device in the housing and opened only in the discharge port direction by an axis installed on the inner wall of the housing.

The method of claim 3,
The pressure regulating device is an internal combustion engine excess heat energy reduction device, characterized in that installed between the one-way check valve and the rotating shaft.

The method of claim 4, wherein
The pressure regulating device is an internal combustion engine excess heat energy reduction device, characterized in that formed by two leaf springs installed in a symmetrical position inside the housing.

6. The method of claim 5,
The leaf spring is an internal combustion engine surplus heat energy reduction device, characterized in that made of any one metal selected from, for example, duplex steel, titanium, STS316 of the elastic metal material.

The method of claim 6,
The two leaf springs are installed so as to be spaced apart from each other by a predetermined distance in a low temperature low pressure state.