KR20230092268A - Air intake/exhaust vent controller for cooling of outboard engine room - Google Patents

Abstract

The present invention relates to an air intake/outlet opening and closing device for cooling an outboard engine room, and more specifically, for the purpose of effectively blocking the inflow of water droplets or rainwater into a driving unit without reducing the flowability of air for cooling the driving unit, In the outboard motor (10) mounted at the rear of the ship and obtaining propulsion by rotating the propeller (12) with the power of the driving unit (11), the engine room air intake (13) sucks air outside the driving unit (11) of the outboard motor (10). ) and an engine room air outlet 14 for discharging air, and an opening/closing means for selectively allowing or blocking the inflow or discharge of air into the engine room air inlet 13 or the engine room air outlet 14. (20) relates to an air intake/outlet opening and closing device for cooling an outboard engine room.

Description

Air intake/outlet opening/closing device for cooling outboard engine room {AIR INTAKE/EXHAUST VENT CONTROLLER FOR COOLING OF OUTBOARD ENGINE ROOM}

The present invention relates to an air intake/outlet opening/closing device for cooling an engine room of an outboard engine, and more specifically, an air intake port and/or an air outlet provided to cool an engine in an outboard motor installed at the rear of a ship can be opened and closed as necessary. It relates to an air intake/outlet opening and closing device for cooling the engine room of an outboard motor.

In general, yachts or large boats use an engine mounted inside the hull as the main power source, but boats smaller than this use an outboard engine, which is a small engine outside the hull (at the rear of the ship). is installed to obtain propulsive power ranging from as small as 2 horsepower to as large as 350 horsepower.

That is, as referring to the side view of the outboard motor in FIG. 1 schematically showing the configuration of a general outboard motor, the outboard motor 10, like a known gasoline, diesel or LPG engine, drives gasoline, diesel or LPG gas fuel in the drive unit 11. The combustion causes the piston inside the cylinder to reciprocate, and the power of the driving unit 11 is converted into rotational power and transmitted to the propeller 12 to obtain propulsive force for the ship.

Since the outboard motor 10 needs to cool the heat generated from the engine like other internal combustion engines, air is sucked into one side of the cowl covering the engine driving unit 11 of the outboard motor 10 to cool the engine. An engine room air inlet 13 is provided, and an engine room air outlet 14 is provided on the other side to discharge heated air, so that the air introduced through the engine room air intake 13 is driven into the drive unit 11 After cooling the heat of the engine room is discharged to the air outlet (14).

At this time, in order to increase the cooling efficiency while the air introduced through the engine room air inlet 13 passes through the drive unit 11, it is preferable to apply a structure with low air resistance. That is, in order to improve the cooling efficiency of the drive unit 11, a structure for improving air flow is required, such as excluding a labyrinth structure or baffle installation in an air passage, but in this case, the moisture contained in the air or Water droplets or rainwater caused by waves may flow into the driving unit 11 and cause fatal damage to the engine.

In addition, as shown in FIG. 2, if the outboard motor is rotated (tilted) to raise the propeller 12 of the outboard motor 10 to the surface of the water when the ship is not operated and the ship is moored, the engine room air outlet 14 is directed toward the sky. Rainwater may flow into the drive unit 11 through the engine room air outlet 14, and when water flows into the drive unit 11 in this way, it may cause fatal damage to components within the drive unit 11.

Therefore, in order to solve this problem, conventional outboarders design passages for intake and discharge air in a maze shape or install baffles to block moisture in the air, water droplets, rainwater, etc. from directly flowing into the drive unit 11. , In addition, a separate water discharge line was installed to discharge water when it entered the inside of the drive unit.

However, when the air flow path inside the drive unit is made into a labyrinth or a baffle is installed, there is a problem of lowering the cooling efficiency of the drive unit 11 due to reduced air flow, as well as the installation of a water discharge line to the internal structure of the drive unit. Since it inevitably becomes complicated, difficulties follow during the manufacture and repair of the drive unit.

Therefore, there is a demand for a new method for preventing water droplets or rainwater from flowing into the outboard motor drive unit, that is, without reducing the flow of air in the engine room.

1. Korean Patent Publication No. 2021-0029252 (published on March 15, 2021)

The present invention is intended to solve the above-mentioned problems of the structure of conventional outboard motors, and air flows into the engine room air inlet or engine room air outlet of the outboard motor drive unit without designing the air passage in the outboard unit in a maze shape or installing a baffle. Provides an air intake/outlet opening/closing device for cooling the outboard engine room that can effectively block the inflow of water droplets or rainwater into the drive unit without reducing the flow of air by installing an opening and closing means that allows or blocks the discharge selectively. I want to do it, but it has a purpose.

In order to achieve the above object, the air intake/outlet opening/closing device for cooling an outboard engine room of the present invention is an outboard device installed at the rear of a ship and obtaining propulsive force by rotating a propeller with the power of a driving unit, by supplying air to the outside of the driving unit of the outboard unit. An engine room air intake for intake and an engine room air outlet for discharging air are provided, and an opening/closing means for selectively allowing or blocking the inflow or discharge of air is provided at the engine room air intake or engine room air outlet. to be characterized

In a preferred embodiment, the opening/closing unit includes a plurality of wings provided to be rotatable around a rotational axis crossing the engine room air inlet or the engine room air outlet, and a driving member for rotating the wings, wherein the wings are plate-shaped. As a plurality of pieces are arranged at a predetermined distance in the vertical direction, a connecting member connected to each side of the wing is connected to the driving member, and when the driving member is driven, each of the wings is changed to a horizontal or vertical shape, so that the air in the engine room An inlet or an engine room air outlet may be opened or closed.

As a preferred embodiment, a gyro sensor for detecting whether or not the outboard engine is tilted is provided on one side of the outboard motor, and when the outboard motor is tilted, the drive unit is driven by a detection signal of the gyro sensor to operate the engine room air inlet or engine room air outlet. It may be provided to be able to close.

In addition, an operating member capable of being manually operated may be provided on one side of the outboard motor, and when the operating member is operated, the driving member may be driven to open or close the engine room air inlet or engine room air outlet.

According to the air intake/outlet opening/closing device for cooling an outboard engine room of the present invention, an opening/closing means capable of selectively allowing or blocking the inflow or discharge of air is provided at the engine room air inlet or engine room air outlet of the outboard motor drive unit, It can effectively prevent water droplets or rainwater from entering.

In addition, if an opening/closing means is provided at the engine room air inlet or engine room air outlet, it is not necessary to design the air passage in the drive unit in a labyrinth structure or to install a baffle, so air flow can be improved and the cooling efficiency of the drive unit can be improved. At the same time, it is possible to implement efficient heat dissipation in the engine room.

Moreover, since the driving part wears out rapidly during operation of an outboard motor in a cold environment, such as in winter, it is necessary to quickly raise the temperature of the engine to an appropriate level. If the drive unit is operated in a partially open state, the temperature of the drive unit can be rapidly heated to an appropriate temperature, thereby improving durability of the drive unit.

1 is a side view of a schematic configuration of a general outboard motor.
2 is a side view of an outboard motor showing an operating state of a general outboard motor.
3 is a cross-sectional side view of an outboard motor schematically showing a mounted state of an air intake/outlet opening and closing device for cooling an engine room of an outboard motor according to the present invention.
4 is an enlarged view of the 'A' portion of FIG. 3 for showing an operating state of the air intake/outlet opening and closing device for cooling the engine room of an outboard motor according to the present invention.

The present invention can be made with various changes and can have various embodiments. Hereinafter, preferred embodiments of the present invention will be exemplified and based on this, the present invention will be described in detail. However, this is not intended to limit the present invention only to the exemplified embodiments, and the spirit and technical scope of the present invention includes conventional modifications, equivalents, and substitutes of the exemplified forms.

In addition, throughout the specification, 'connecting' a part to another part includes cases where it is 'directly connected' or 'indirectly connected' with a certain element, and 'includes' a certain element is specifically opposed. Unless otherwise stated, it means that other components may be added, rather than excluding other components.

3 is a cross-sectional side view of an outboard motor schematically showing a mounting state of an air intake/outlet opening and closing device for cooling an engine room of an outboard engine according to the present invention, and FIG. It is an enlarged view of 'A' portion of FIG. 3 for illustration.

3, the outboard motor 10 according to the present invention is mounted outside the rear of the ship, and when the driving unit 11 of the internal combustion engine operates, the propeller 12 of the drive disposed below the outboard motor 10 rotates to gain momentum.

At this time, the cowl covering the drive unit 11 of the outboard motor 10 has an engine room air inlet 13 through which air is introduced and an engine room air outlet through which air is discharged to cool (air-cool) the drive unit 11. 14 is formed, and in the engine room air outlet 14, an opening and closing means capable of opening the engine room air outlet 14 to allow air discharge or closing the engine room air outlet 14 to block air discharge ( 20) is provided, and this opening/closing means 20 can also adjust the air exhaust amount of the engine room air outlet 14.

As shown in FIG. 4 , the opening/closing means 20 rotates a plurality of wings 22 and the wings 22 provided to be rotatable around a pivot axis 21 crossing the engine room air outlet 14. It may be configured to include a driving member 23 to do.

At this time, the plurality of wings 22 are plate-shaped and are spaced apart from each other by a predetermined distance in the vertical direction, and a pivoting shaft 21 is provided at the center of each wing 22, and both ends of the pivoting shaft 21 are air in the engine room. It is connected to the side wall of the outlet (14).

The drive member 23 is a motor that operates when electricity is applied, and may be, for example, a step motor or a linear motor, and a bar or wire type connection member 24 is connected to each side of the wing 22, An end of the connecting member 24 is connected to the driving member 23 .

Accordingly, when the driving member 23 operates, the connecting member 24 moves in the vertical direction, or is pulled or released, and when the connecting member 24 moves in the upward or downward direction, or is pulled or released, each The wing 22 can open or close the engine room air outlet 14 while simultaneously changing to a horizontal form or a vertical form around each rotation axis 221, and furthermore, according to the rotation angle of each wing 22 The opening amount of the engine room air outlet 14 is controlled.

In addition to the structure illustrated in FIG. 4, the structure of the opening and closing means 20 may be a known blind structure, that is, a blind structure installed in a window or a ventilator, and other known opening and closing structures may be applied.

Meanwhile, on one side of the outboard motor 10, a gyro sensor 25 detects whether the outboard motor 10 is tilted (refer to the operating state of FIG. 2) and a detection signal detected by the gyro sensor 25 A control unit (not shown) for transmitting a signal for operating the driving member 23 may be further provided.

The gyro sensor 25 is a sensor for detecting an inclination, and when the gyro sensor 25 tilts the outboard motor 10, that is, the outboard motor 10 is tilted to raise the propeller 12 of the outboard motor 10 above the water surface. When an inclination of more than a set angle is sensed, the signal detected by the gyro sensor 25 is transmitted to the control unit, and the control unit transmits a signal to operate the driving member 23 to drive the driving member 23 to open and close. Since the means 20 closes the engine room air outlet 14, it is possible to prevent rainwater from entering through the engine room air outlet 14 when it rains.

Meanwhile, an operating member 26 such as a switch enabling a user to manually operate may be provided on one side of the outboard motor 10, and the operating member 26 may be electrically connected to the driving member 23. Accordingly, when the user manipulates the operating member 26 to open or close, the driving member 23 is driven to open or close the engine room air outlet 14 through the opening/closing means 20 .

Although FIG. 3 illustrates that the opening/closing means 20 is formed in the engine room air outlet 14, the opening/closing means 20 according to the present invention is mounted on the engine room air intake 13 of the outboard motor 20, so as to It will be appreciated that it is also possible to allow or block air entering the engine compartment air intake 13 .

As such, the above description has been described according to the limited embodiments showing the technical idea of the present invention, but the present invention is not limited to specific embodiments or shapes and numbers, and some of the components of the embodiments are changed or mixed, and the present invention Various modifications and variations can be made by those skilled in the art without departing from the gist of the invention, and such modifications and variations should not be individually understood from the technical spirit or prospect of the present invention. It will be.

10... outboard
11 ... driving unit 12 ... propeller
13... engine room air inlet 14... engine room air outlet
20... Opening/closing means
21... Pivot shaft 22... Wing
23 ... driving member 24 ... connecting member
25... gyro sensor 26... operating member

Claims (4)

In the outboard motor mounted on the rear of the ship and obtaining propulsion by rotating the propeller with the power of the drive unit,
An engine room air inlet for sucking in air and an engine room air outlet for discharging air are provided outside the drive unit of the outboard motor, and the inflow or discharge of air can be selectively allowed or blocked from the engine room air inlet or engine room air outlet. An air intake/outlet opening and closing device for cooling an outboard engine room, characterized in that an opening and closing means is provided.
The method of claim 1,
The opening/closing means includes a plurality of wings provided to be rotatable around a rotational axis crossing the engine room air intake or engine room air outlet and a driving member for rotating the wings,
The plurality of wings are in the form of a plate and are spaced apart from each other in a vertical direction by a predetermined distance, and a connecting member connected to one side of each wing is connected to the driving member, so that each wing changes to a horizontal or vertical shape when the driving member is driven. Air intake/outlet opening/closing device for cooling an outboard engine room, characterized in that the engine room air inlet or engine room air outlet can be opened or closed.
The method of claim 2,
A gyro sensor for detecting whether or not the outboard motor is tilted and a control unit for sending an operating signal to the driving member based on the detection signal of the gyro sensor are provided on one side of the outboard motor, so that when the outboard motor is tilted beyond a set angle during tilting, the gyro sensor An air intake/outlet opening/closing device for cooling an outboard engine room, characterized in that the driving member is driven by a detection signal.
The method of claim 2,
An air intake/outlet opening and closing device for cooling an outboard engine room, characterized in that an operating member electrically connected to the driving member and operable manually is provided on one side of the outboard motor, and the driving member is driven when the operating member is operated.

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