KR0152503B1 - Apparatus for automatically opening and closing the drain hole of the water trap attached to intake pipe for an automobile - Google Patents

Abstract

According to the present invention, a solenoid valve (9) is mounted in the drain hole (8) of the water trap (2) mounted on the suction pipe (1) of the vehicle intake pipe, and a potential meter mounted on the water trap bottom surface (2a) 10) The float 13 is mounted on the lower end of the iron core 11 to the outside, while the primary coil 12a of the potential meter 10 is connected to the vehicle battery power source 14, and the secondary coil 12b is connected to the solenoid valve 9 via an operation switch 15, so that the float 13 is floated by external pressure Pout when the water trap 2 is immersed and drained. The operation switch 15 senses a change in the induced electromotive force value on the secondary coil 12b generated when the iron core 11 is moved in the up and down directions, and causes the solenoid valve 9 to open the drain hole 9. The present invention relates to a drain hole automatic opening device for a water trap mounted on a vehicle opening pipe.

Description

Automatic opening and closing of the drain hole of the water trap mounted on the vehicle suction pipe

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water trap apparatus of an intake apparatus of a vehicle, and more particularly, to a drain hole of a water trap mounted on a vehicle suction pipe in which water accumulated and accumulated in a water trap mounted on a suction pipe is automatically discharged through the drain hole. It relates to an automatic switchgear.

In general, in a vehicle, air is sucked from the outside, purified in an air cleaner, mixed with fuel through a vaporizer, and introduced into a combustion chamber. At this time, if foreign matter is contained in the inhaled air, the mixer mixed with the fuel not only adversely affects the combustion process of the engine but also causes premature damage to related components.

However, the conventional suction air pipe has an L-shape in which its tip protrudes upward, and has a structure in which rain water and the like easily enter the air from the air intake. Once rainwater penetrates through the tip of the suction pipe, it is mixed with the sucked air and then mixed with the fuel again through the air cleaner to be injected into the combustion chamber, which causes abnormal combustion and lowers the combustion efficiency. It has been.

Therefore, in order to solve such problems in the related art, a water trap is formed on the suction pipe to sink the water introduced with the suction air to the suction pipe tip and automatically drain it. The explanation is as follows.

As shown in FIG. 4, a water trap 102 is formed in the form of an enlarged chamber subsequent to the air intake 101a at the tip of the suction pipe 101, and the shelder having a simple blocking wall function in the water trap 102 is formed. 103 is internally formed, and a drain hole 108 is formed in the lower bottom surface 102a to allow the settled water to be discharged to the outside.

Therefore, the water once introduced through the air intake 101a flows together with the intake air (indicated by the arrow →) and hits the shelter 103 in the water trap 102 and rotates downward to the air outlet 101b. In this case, the water has a specific gravity higher than that of air, so that the water is settled due to a decrease in flow rate during air rotational flow, and accumulates in the water trap bottom surface 102a, and thus the accumulated water is discharged to the outside through the drain hole 108. Will be.

However, in the conventional water trap device as described above, when driving in the rain or in the flooded passage, the drain hole 108 is submerged, so that the external water may flow back through the drain hole 108 and collect into the water trap 102. When the reversed water reaches the lower end of the shelder 103 in the water trap, a problem has been pointed out such that the passage of the intake air is completely blocked, thereby causing a fatal damage to the vehicle engine.

In order to solve such a problem, conventionally, as shown in FIG. 5, the shelter 203 built in the water trap 202 on the suction pipe 201 is reinforced so that the filtration function of the shelter in the water trap is enhanced. (Lead Valve) 204, the first partition 205 is attached to the lower end of the reed valve 204, and the second partition 205 is provided on one side of the first partition 205. A water trap apparatus of structure has been proposed.

In the water trap apparatus, first, when water is introduced into the water trap 202 together with air through the air suction unit 201a during normal operation of the engine, the water splashes the first partition 205 while hitting the first partition 205. The bottom of the partition 205 is settled down and removed through the drain hole 208 of the water trap bottom surface 202a, and the bottom of the water trap 202 is flooded to collect water up to the bottom of the first partition 205. If it rises, the suction air is directly sucked through the reed valve 204 to filter water from the second partition wall 206, and the filtered water is settled toward the drain hole 208 through the S-shaped pipe 207, so as to partially invade the vehicle or Smooth intake air flow is maintained even when driving in the rain.

However, in the conventional apparatus as described above, when the water level 202 continues to be flooded while the external water level h is increased, the internal water level h 'is increased beyond the first partition 205. Not only the inflow can be made but also the backflowed water is introduced into the combustion chamber (not shown), causing a water hammering phenomenon, causing a fatal loss.

The present invention has been made to solve the above problems, and provides an automatic opening and closing device of the drain hole of the water trap mounted on the vehicle suction pipe that can prevent the inflow of the external water level when the water trap on the suction pipe submerged. Its purpose is to.

1 is a schematic cross-sectional view of a water trap to which the present invention is applied.

2 is a circuit diagram of a drain hole automatic switching device according to the present invention.

3 is a graph showing the operating state of the solenoid valve according to the change of the induced electromotive force value ε in FIG.

4 and 5 are schematic cross-sectional views of a conventional water trap.

* Explanation of symbols for main parts of the drawings

1: suction pipe 2: water trap

2a: water trap bottom 3: sheller

4: reed valve 5: first bulkhead

6: second bulkhead 7: S-shaped tube

8 drain hole 9 solenoid valve

10: Potentiometer 11: Iron core

12a, 12b: first and secondary coil 13: float

14: vehicle battery power 15: operation switch

In order to achieve the above object, the present invention, the connection pipe is formed so as to extend and protrude to the outer drain hole of the bottom surface of the water trap, the solenoid valve is mounted on the end of the connection pipe, the solenoid valve is a water trap A float is connected and mounted at the bottom of the iron core in the potential meter using the transformer principle mounted on the pot so that the potential meter is located outside the case.

In the present invention as the water trap is submerged, the external water level is higher or lower than the internal water level of the water trapped on the bottom of the water trap as the inner iron core of the potential meter caused by the internal and external hydraulic pressure difference acting on the float, moving up and down The solenoid valve opens or closes the drain hole in an on or off state by induction electromotive force induced from the primary coil connected to the vehicle battery power source to the secondary coil.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of a water trap to which the present invention is applied, and FIG. 2 is an enlarged detailed view of part (a) of the main part of the present invention, as shown in the drawing. In the sheller 3 of the water trap 2 formed in the enlarged chamber shape, the first partition 5 is provided at the lower end of the reed valve 4, and the second partition wall 1 is formed at one side of the first partition wall 5. 6) is provided, and the S-shaped tube 7 is installed in the lower state of the second partition 6 in a horizontal state. A drain hole 8 is formed in the water trap bottom surface 2a, and a solenoid valve 9 is provided in the drain hole 8, and a potential meter 10 is mounted adjacent thereto.

In addition, in order to generate an induced electromotive force inside the potential meter 10, the potential meter 10 is positioned on the lower side of the potential meter 10 on the lower end of the iron core 11, which is built between the first and second coils 12a and 12b. Knit 13 is mounted.

In addition, the primary coil 12a of the potential meter 10 is connected to the vehicle battery power supply 14 terminals as shown in FIG. 2, and the secondary coil 12b is connected to the solenoid valve. (9) and the ground terminal (GND) to the vehicle body side through the operation switch 15 with a built-in transistor, the branch wiring is connected to the operation switch 15 at the starting point a.

According to the present invention configured as described above, water trapped in the suction air by the method described above is filtered by the first partition 5 during normal driving, and as shown in FIG. Since the iron core 11 maintains the downward deflection (part shown by dashed lines) by its own weight, the operation of the water trap 2 proceeds in the conventional manner described above. Therefore, detailed description is omitted here.

On the other hand, if the water trap 2 is flooded when the vehicle is flooded or in rainy weather, the external water level (h) is gradually increased, the float 13 is buoyant by the external water pressure (Pout) and gradually upwards with the iron core (11) To move (shown in solid line). At this time, the upward movement of the iron core 11 generates the induced electromotive force in the secondary coil 12b. As the movement amount of the iron core 11 increases, the induced electromotive force value of the secondary coil 12b also increases. When the value of the induced electromotive force of the secondary coil gradually increases and becomes greater than or equal to the valve actuator electromotive force value ε a as shown in FIG. 3, the solenoid valve 9 is maintained in the OFF state by the operation switch 15. The drain hole 9 is closed.

On the other hand, when the vehicle gradually escapes from the submerged passageway and the external water level h of the water trap 2 gradually lowers and becomes below the bottom of the float 13, the iron core 11 moves downward again, and at this time, When the induced electromotive force value of the secondary coil 12b is equal to or less than the valve open electromotive force value εb, the solenoid valve 9 is turned on by the operation switch 15 and the drain hole 8 is opened to open the water trap 2. The water accumulated in the inside is discharged to the outside.

As described above, the present invention is submerged or drained from the bottom of the water trap (2) as the external water level (h) rises as the float 13 is buoyant by the external water pressure is moved upwards or downwards by its own weight iron core (11) is moved up and down to generate specific induced electromotive force (εa, εb) in the secondary coil 12b in the potential meter 10, and according to the change of the induced electromotive force value in the operation switch 15 Since the transistor causes the solenoid valve 9 to remain on or off to automatically open and close the drain hole 8, the lower portion of the water trap 2 on the suction pipe 1 when the vehicle is running in rain or flooded. Even if the drain hole 8 is submerged, only the intake air from which water is removed flows into the engine, and in any case, the external water through the drain hole 8 does not flow back into the water trap 2, so that a smooth inhalation of the vehicle occurs. System operation It is made to induce normal engine operation has the effect of enhancing the commerciality.

Claims (4)

It is formed in the form of an enlarged chamber on the suction pipe 1 in front of the air cleaner, which is a vehicle intake cylinder, and is located on the lower bottom surface 2a of the water trap 2 provided with a shelter 3, which is a simple closing plate, on the inner upper side. In the apparatus for opening and closing the drain hole (8), a solenoid valve (9) is mounted to the outside of the drain hole (8), and a small potential meter (10) is provided adjacent thereto, and the potential meter (10) Both ends of the first and the secondary coils 12a and 12b provided around the iron core 11 are connected to the vehicle battery power source 14, the solenoid valve 9, and the operation switch incorporating a transistor through the vehicle body, respectively. And the operation switch 15 is branch-wired from the starting point a on the secondary coil 12b. 2. The automatic opening and closing device of a drain trap of a water trap mounted on a vehicle suction pipe according to claim 1, wherein the iron core (11) is connected to and mounted on a lower side of the potential meter (10). According to claim 2, If the external water level (h) is gradually increased while the water trap 2 is submerged, the external water pressure (Pout) acts as a large buoyancy to float (13), the float 13 is iron core It moves upward with (11) to generate the induced electromotive force in the secondary coil 12b, and when the induced electromotive force value is equal to or higher than the valve actuator electromotive force value εa, the solenoid is detected by the operation switch 15. A drain hole automatic opening and closing device for a water trap mounted on a vehicle suction pipe, wherein the drain hole 8 is closed while the valve 9 is turned off. According to claim 2, If the water level (h) of the water trap 2 is lowered below the bottom of the float 13, float 13 is moved downward with the iron core 11 by its own weight secondary car Induced electromotive force is generated in the coil 12b, and when the induced electromotive force value becomes lower than the valve open electromotive force value εb, the solenoid valve 9 is turned on by the operation switch 15 which senses the drain hole and the drain hole. (8) by automatically opening and closing the drain hole of the water trap mounted on the vehicle suction pipe, characterized in that the water accumulated in the water trap (2) is discharged to the outside.