KR980009849A - Intake efficiency improvement device using brake power loss - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an intake efficiency improving apparatus for increasing intake air in an engine using power lost by an automotive brake, A drive pulley having a groove formed in the end of the crankshaft so as to have an end face narrowed inwardly, that is, a groove having a trapezoidal cross section; A driven pulley coupled and releasably arranged in the groove of the drive pulley; The driven pulley is coupled to the driving pulley groove at the time of brake operation so that the lost power can be used for the suction of the outside air. And an intake efficiency improving device using the brake power loss.

Description

Intake efficiency improvement device using brake power loss

FIG. 1 is a schematic view showing a state before a brake operation as a structure of an intake efficiency improving device according to the present invention. FIG.

Fig. 2 is a schematic view showing the state after the brake operation of the intake efficiency improving device shown in Fig. 1; Fig.

DESCRIPTION OF THE REFERENCE NUMERALS

1: crankshaft 2: drive pulley

3, 8: groove interface 4: ignition coil

5: driven pulley 6: pump

7: driven shaft 9: throttle valve

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an intake efficiency improving apparatus for increasing intake air in an engine using power lost by an automotive brake, and more particularly, to a pump for forcibly introducing air into an engine, To an intake efficiency improving apparatus using brake power loss that increases the output of the engine.

BACKGROUND ART [0002]

Generally, a valve mechanism of a four-cycle engine is composed of an intake and exhaust valve and a valve opening and closing mechanism for opening and closing the valve. To improve the output of the engine, the speed or acceleration when the valve is opened or closed is set large, So that a large amount of the mixer can be sucked into the cylinder. However, if the speed or acceleration of the valve is too fast, it may cause a problem that the valve collides with the valve seat or the movement of the valve does not follow the shape of the cam, so that the noise becomes large and the valve mechanism is damaged. A type that ensures a large valve opening area as much as possible should be employed.

On the other hand, the valve opening / closing mechanism of the four-cycle engine is classified into various types according to the positions where the valves are arranged. The valve opening / closing mechanisms of the four-cycle engine are installed in the cylinder head, (OHC) type in which a cam opens and closes a valve through a rocker arm and a direct overhead camshaft (DOHC) valve in which a cam opens a valve through a rocker arm. (SV) type valve which is provided with a valve on one side or both sides of a cylinder and a cylinder and which is rarely used at present.

In this four-cycle engine, a negative pressure is formed by repetitive action of the piston lifted up and down in the cylinder, and external air is sucked in, and fuel is injected into the combustion chamber in which the air is sucked to produce a proper mixer, . Here, the intake air flows through the intake system by opening the intake valve which is opened once every two revolutions of the crankshaft, that is, when the piston descends for the intake stroke.

[PROBLEMS TO BE SOLVED BY THE INVENTION]

However, it is well known that increasing the amount of intake air entering the engine combustion chamber in such a conventional intake system improves the engine performance. Accordingly, much effort and research have been made to place intake efficiency such as a turbo engine and the like , The turbo engine and the like are expensive and have to use their own power.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an intake efficiency improving apparatus using power loss by the brake, So that the maximum suction effect can be achieved and an additional power is not required.

[Structure and operation of the invention]

In order to achieve the above object, the present invention provides an intake efficiency enhancing device for increasing the amount of intake air introduced into an engine using power of a crankshaft which is lost during a brake operation, the intake efficiency increasing device comprising: A drive pulley having a groove having a cross section, that is, a trapezoidal cross section; A driven pulley coupled and releasably arranged in the groove of the drive pulley; The driven pulley is coupled to the driving pulley groove at the time of brake operation so that the lost power can be used for the suction of the outside air. And an intake efficiency improving device using the brake power loss.

In addition, a plurality of ignition coils are wound around the driving pulley, which is a peripheral portion of the groove, so that a magnetic force is formed and extinguished in the groove in accordance with on / off of current, and the ignition coil And the electronic control device detects whether or not the brake of the vehicle is operated so that a current flows from the power source to the ignition coil at the time of brake operation so that a magnetic force is formed in the groove of the drive pulley.

Also, the driven pulley has grooves formed in a shape such that its cross section becomes larger toward the inside as opposed to the grooves of the drive pulley, and the cross-sectional area of the end portion of the driven shaft is larger than that of the driven shaft. So that it is possible to move in and out of the groove depending on whether the ignition coil mounted in the driving pulley is formed with magnetic force.

In addition, the pump is connected to a second intake pipe connected to the air purifier separately from the first intake pipe in which the existing throttle valve is formed. When the pressure of the surge tank is below atmospheric pressure, And when the pressure of the surge tank exceeds the atmospheric pressure or the pump is operated, it is preferable to close the intake pipe.

[Example]

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, the same parts as those cited in the prior art are assigned the same reference numerals, I do not explain.

FIG. 1 schematically shows a state before the brake operation as a structure of an intake efficiency improving apparatus according to the present invention. According to the present invention, a drive pulley 2 is mounted on an end of a crankshaft 1, At the end of the pulley 2, a groove 3 having a trapezoidal cross section is formed so as to narrow the end face toward the inside of the drive pulley 2. The ignition coil 4 is wound in multiple layers inside the driving pulley 2 which is a peripheral portion of the groove 3 so that a magnetic force is formed or extinguished in the groove 3 in accordance with the on /

According to the present invention, in the groove 3 of the drive pulley 2, a driven pulley 5 formed in a trapezoidal shape along the shape of the groove 3 is arranged and disengaged by the magnetic force of the ignition coil 4 And the driven pulley 5 is coupled with a driven shaft 7 extending from a pump 6 for forcibly injecting air into the engine. The driven pulley 5 is provided with a groove 8 having a shape increasing in section toward the inside as opposed to the groove 3 of the drive pulley 2. The end portion of the driven shaft 7 coupled to the driven shaft 7 has a cross- So that the end portion of the driven shaft 7 coupled to the groove 8 does not come off the groove 8. Further, the driven pulley 5 is provided so as to be movable in the axial direction at a predetermined interval with respect to the end portion of the driven shaft 7 to which the driven pulley 5 is coupled, so that the magnetic force of the ignition coil 4 mounted inside the drive pulley 2 To the inside or outside of the groove 3.

The pump 6 is connected to a second intake pipe 12 connected to the air cleaner 11 separately from the first intake pipe 10 in which the existing throttle valve 9 is formed, The air cleaner 11 is connected to the engine 14 via a surge tank 13.

On the other hand, the ignition coil 4 mounted on the drive pulley 2 is determined by the electronic control unit (not shown) whether or not the magnetic force is to be formed. The electronic control unit detects whether the brake is applied to the vehicle, The driven pulley 5 is driven by the drive pulley 2 to generate a magnetic force in the groove 3 of the drive pulley 2 by allowing current to flow from the power source to the coil 4. [ So that it is coupled into the groove 3 to actuate the pump 6.

According to the present invention, the throttle valve 9 of the existing intake pipe 10 provided separately from the pump 6 opens the intake pipe 10 when the pressure of the surge tank 13 is at atmospheric pressure, When the pressure of the tank 13 exceeds the atmospheric pressure or the pump 5 is operated, the intake tract 10 is closed.

[Effects of the Invention]

As described above, according to the intake air efficiency improving apparatus of the present invention, by increasing the amount of intake air in the engine by using the power lost by the brakes during the brake operation of the vehicle, it is possible to improve the power efficiency of the vehicle, Also, by improving the intake efficiency, there is an effect of increasing the output through the low RPM region.

While the present invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Any person skilled in the art will be able to make various changes.

Claims (4)

An intake efficiency improving apparatus for increasing the amount of intake air introduced into an engine by using a power of a crankshaft which is lost during a brake operation, the intake efficiency improving apparatus comprising: a crankshaft having an end surface narrowed toward the inside thereof, A drive pulley having a groove formed therein; A driven pulley coupled and releasably arranged in the groove of the drive pulley; The driven pulley is coupled to the driving pulley groove at the time of brake operation so that the lost power can be used for the suction of the outside air. And the intake air amount is increased. The ignition coil according to claim 1, wherein an ignition coil is wound in multiple layers inside a driving pulley, which is a peripheral portion of the groove, so that a magnetic force is formed and extinguished in the groove according to ON / OFF of current, The electromagnetic control device determines whether or not the brake of the vehicle is operated so that a current flows from the power source to the ignition coil at the time of brake operation so that a magnetic force is formed inside the groove of the drive pulley. Intake efficiency improvement device using loss. The driven pulley as set forth in claim 1, wherein the driven pulley has a groove formed in a shape that increases in section toward the inside as opposed to a groove of the drive pulley, and a cross section of the end portion of the driven shaft, And is movable in the axial direction at a predetermined interval with respect to an end portion of the driven shaft which is provided at the end of the driven pulley and is able to move to the inside and outside of the groove according to whether magnetic force of the ignition coil mounted in the drive pulley is formed. The intake efficiency improving device using the. The air conditioner according to claim 1, wherein the pump is connected to a second intake pipe connected to the air purifier separately from the first intake pipe in which the existing throttle valve is formed, , The intake tract is opened, and when the pressure of the surge tank exceeds the atmospheric pressure or the pump is operated, the intake tract is closed. ※ Note: It is disclosed by the contents of the first application.