JP2006029309A - Exhaust gas reducing device by intake air adjustment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively reduce CO, HC, NOx, CO<SB>2</SB>, PM in exhaust gas and improve output through easy installation to an existing internal combustion engine by using heat of a humidifier and the internal combustion engine, and to prevent rust and corrosion caused by water droplets by humidifying. <P>SOLUTION: An intake air adjusting device can be easily mounted since it is mounted not inside an intake air introducing pipe of the internal combustion engine but around an intake air taking-in port. In addition, it is not required to modify the intake air introducing pipe etc. of the existing internal combustion engine. The intake air adjusting device appropriately adjusts air amount, temperature and humidity based on the states of the internal combustion engine and exhaust gas, and sends air to the intake air taking-in port. Due to this, CO, HC, NOx, CO<SB>2</SB>, PM in exhaust gas can be reduced to improve output, and rust and corrosion caused by water droplets by humidifying can be prevented. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

Detailed Description of the Invention

  The present invention is installed near an intake air intake port of an internal combustion engine, adjusts the temperature and humidity of the intake air, and causes the internal combustion engine to inhale.

  When there is adequate moisture during combustion of the internal combustion engine, the combustion efficiency is improved, so that the output is improved and harmful exhaust gas NOx can be reduced.

  In the conventional technology, water is supplied at the time of combustion by atomizing water in the intake air introduction pipe or in the combustion chamber, or mixing water with fuel to improve output and reduce harmful exhaust gas NOx, but costs are high. Or major remodeling is required.

  If the temperature of the intake air is high, complete combustion is easy, but the density of the air decreases and the amount of intake air decreases, so the output decreases.

  During no-load operation or low-load operation of a diesel engine, the exhaust gas temperature is low, so the catalyst capacity cannot be demonstrated and the exhaust gas cannot be purified.

Problems to be solved by the invention

  Easy to attach to off-the-shelf internal combustion engines.

  Prevents rust and corrosion by preventing moisture from remaining in the intake air introduction pipe and combustion chamber and adhering as water droplets.

  In particular, the exhaust gas temperature at the time of no-load operation or low-load operation of the diesel engine is raised to the reaction temperature of the catalyst.

  The components CO, TC, NOx, CO2, and PM of the exhaust gas of the internal combustion engine are reduced.

  Improve output during high load operation.

Means for solving the problem

  Since the intake air adjusting device is installed not in the intake air introduction pipe of the internal combustion engine but in the vicinity of the intake air intake port, it is easily installed. Further, there is no need to modify the intake air introduction pipe or the like of a ready-made internal combustion engine.

  Since the intake air adjusting device is not in the intake air introduction pipe but in the vicinity of the intake air intake, the internal combustion engine sucks in a necessary amount of intake air and atomized water. In addition, if the intake air adjustment device is in the intake air introduction pipe, the intake air amount of the internal combustion engine is suddenly reduced. When the intake air adjustment device is in a humidified state, it becomes a highly humidified state, which causes rust and corrosion due to adhesion of water droplets. However, since the intake air adjusting device is not in the intake air introduction pipe but in the vicinity of the intake air intake, excessively atomized water is released to the atmosphere, so the intake air introduction pipe does not become highly humidified and prevents the generation of water droplets. Prevent rust and corrosion.

  Even if the humidifier is in a highly humid state due to an abnormality in the humidifier of the intake air adjusting device, the atomized water or the liquid instead of the atomized water is discharged into the atmosphere because it is not in the intake air introduction pipe, and thus does not adversely affect the internal combustion engine.

  By controlling the amount of water atomized according to the state of the internal combustion engine, NOx in the exhaust gas is reduced and the output is improved. For example, the amount of atomization is increased during lean combustion to reduce NOx in the exhaust gas. In addition, the amount of atomization is increased during high load operation to improve output.

  During no-load operation or low-load operation with a small intake air amount, the atomization amount is reduced or stopped. Further, by sending warm air and sucking it into the internal combustion engine, water droplets in the intake air introduction pipe are prevented from adhering.

  The temperature of the air sent out from the intake air adjusting device is sent out during the no-load operation and the low-load operation, and warm air is sent out for complete combustion. Also. In the case of a diesel engine, the exhaust gas temperature is raised so that the reaction of the catalyst is improved and the exhaust gas can be purified.

  Further, during high load operation, the air sent out from the intake air adjusting device sends out outside air and atomized water, thereby improving the output and reducing NOx in the exhaust gas.

  A device that is installed near the inlet of an intake air intake pipe of an internal combustion engine, and sends out the air whose intake air volume, temperature, and humidity are adjusted according to the state of the internal combustion engine, to the intake air intake.

  In the embodiment of FIG. 1, cold air from the 1 COLD air intake is mixed with the atomized water from the 11 humidifier by the 3 blowers of the intake air adjusting device, and is sent to the 4 intake air intake. 4. The intake air intake port takes in the required amount of air from the internal combustion engine, so if the amount sent out from the intake air adjustment device is large, part of it is released to the atmosphere, and the amount sent out from the intake air adjustment device is small Is inhaled from outside air.

  In the embodiment of FIG. 2, cold air from the 1 COLD air intake port and warm air from the 14 HOT air intake port are sent to the 11 humidifier by adjusting the air temperature to an appropriate temperature by the 2 air temperature control valve by the 3 blowers of the intake air adjustment device. 11 Mix with atomized water from humidifier and send to 4 intake air intakes. 4. The intake air intake port takes in the required amount of air from the internal combustion engine, so if the amount sent out from the intake air adjustment device is large, part of it is released to the atmosphere, and the amount sent out from the intake air adjustment device is small Is inhaled from outside air. Further, the 14HOT air intake is attached in the vicinity of the exhaust pipe of the internal combustion engine or in the engine room.

  In the embodiment of FIG. 3, warm air from the 14 HOT air intake is mixed with the atomized water from the 11 humidifier by the 3 blowers of the intake air adjusting device and sent to the 4 intake air intake. 4. The intake air intake port takes in the required amount of air from the internal combustion engine, so if the amount sent out from the intake air adjustment device is large, part of it is released to the atmosphere, and the amount sent out from the intake air adjustment device is small Is inhaled from outside air. Further, the 14HOT air intake is attached in the vicinity of the exhaust pipe of the internal combustion engine or in the engine room.

  In the embodiment of FIG. 4, warm air from the 14 HOT air intake is taken in by the 3 blowers of the intake air adjusting device and sent to the 4 intake air intake. 4. The intake air intake port takes in the required amount of air from the internal combustion engine, so if the amount sent out from the intake air adjustment device is large, part of it is released to the atmosphere, and the amount sent out from the intake air adjustment device is small Is inhaled from outside air. Further, the 14HOT air intake is attached in the vicinity of the exhaust pipe of the internal combustion engine or in the engine room.

The invention's effect

  This invention adjusts the temperature and humidity of the intake air with an intake air adjusting device in accordance with the intake air amount, rotational speed, temperature, intake air temperature, exhaust gas generation characteristics and output characteristics of the internal combustion engine. Improve efficiency, increase output, reduce fuel consumption, and reduce harmful emissions.

  The recent automobile exhaust gas regulation NOx / PM law has become a problem. In order to reduce NOx and PM of vehicles subject to NOx and PM regulations of automobile exhaust gas regulations, considerable costs must be paid. In addition, there is no effective device for all vehicles subject to NOx / PM regulations.

  In addition, in internal combustion engines such as automobiles, harmful exhaust gas components and amounts vary depending on the amount of intake air, engine rotation speed, and engine load depending on the running state. can not.

  The present invention is a device that can be safely and easily attached to an internal combustion engine such as an off-the-shelf automobile, and controls the temperature and humidity of the intake air in accordance with the running state and sends it to the combustion chamber, so that the CO in the exhaust gas , HC, NOx, CO2 and PM are reduced and output is improved. In addition, if a catalyst or DPF device is installed, its capabilities can be demonstrated effectively, so CO, HC, NOx, and PM can be reduced.

  In addition, there are no problems such as rust or corrosion because no water droplets are generated in the air inlet pipe or combustion chamber.

  Although exhaust gas regulations for automobiles are becoming stricter year by year, there is no problem with newly created automobiles, but old automobiles can no longer be used due to NOx / PM regulations. However. By reducing NOx and PM at a lower cost than the apparatus of the present invention, the exhaust gas regulation NOx / PM law regulation can be adapted. It is also an invention that is necessary to comply with future emission regulations.

Cross section when sending air and atomized water to the intake air intake Cross-sectional view of the mixture of air and warm air and atomized water being sent to the intake air intake Cross section when sending warm air and atomized water to the intake air intake Cross section when sending warm air to the intake air intake

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 COLD air intake 2 Air temperature adjustment valve 3 Blower 4 Intake air intake 5 Air cleaner 6 Air filter 7 Intake air introduction pipe 8 Tank 9 Water level adjustment valve 10 Drain valve 11 Humidifier (ultrasonic vibration type or heating type)
12 Overflow pipe 13 Water (or alternative liquid)
14 HOT air intake C Cold air H Warm air W Atomized water OF Overflowed air

Claims (5)

  An air conditioner is installed in the vicinity of the intake air intake port of the internal combustion engine, and the temperature and humidity of the air are adjusted and the internal combustion engine is inhaled.   The humidifier of the air conditioner is an ultrasonic vibration atomizer or a heating atomizer and is controlled according to the state of the internal combustion engine to supply an appropriate atomization amount.   The temperature regulating valve of the air regulating device is controlled according to the state of the internal combustion engine and supplies air having an appropriate temperature.   The air conditioner blower is controlled according to the state of the internal combustion engine to supply an appropriate amount of air.   There are two air intake ports of the air conditioner, and it takes in outside air and hot air near the internal combustion engine.

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