JPS5826878Y2 - Ship's bilge discharge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bilge discharge device for a ship in which a bilge discharge pump of the ship is driven by a side-start motor of a marine internal combustion engine.

Conventionally, the propeller shaft driven by a marine internal combustion engine mounted on a ship rotates while being supported by a stun tube installed at the stern of the ship, but this prevents the propeller shaft from seizing and provides a lubricating effect. Therefore, while the engine is running, the gland packing of the stun tube is loosened to allow an appropriate amount of seawater to enter the sealing area with the propeller shaft.

However, after the above condition continues for a long period of time, it is necessary to discharge the bilge consisting of seawater etc. that has accumulated on the bottom of the ship overboard, and a bilge discharge pump is separately installed along with the bilge discharge piping. This also requires an electric motor to drive the bilge discharge pump, which has the disadvantage of not only taking up space but also increasing the weight of the ship, which also makes it impossible to install a large-capacity bilge discharge pump. .

Therefore, in order to eliminate the above-mentioned conventional drawbacks, the present invention has been developed by using the starting motor of the bilge discharge pump of a ship equipped with a marine internal combustion engine as the driving motor of the bilge discharge pump of a ship equipped with a marine internal combustion engine. The purpose is to make it possible to equip it.

In other words, the present invention applies to marine internal combustion engines installed on ships.
A bilge discharge pump is mounted coaxially with the rotating shaft of the side-start drive motor of this marine internal combustion engine and adjacent to the side-start drive motor via a clutch mechanism, and this bilge discharge pump is driven by the side-start drive motor. It is characterized by the following.

Embodiments of the present invention will be described below with reference to the drawings.

In the embodiment of the present invention shown in the drawings, a marine internal combustion engine 2 is mounted on a hull 1 of a ship, and a propeller shaft 5 is connected to a drive shaft 4 of a reduction/reversing gear 3. It is rotatably supported within a stun tube 6 provided in the stan tube 6.

Therefore, in the present invention, the bilge discharge pump 8 can be driven by a power transmission device having a clutch mechanism (not shown) coaxially with the rotating shaft of the side-start driving electric motor I installed in the marine internal combustion engine 2, Furthermore, an electric circuit is provided which enables the bilge pump 8 to be driven independently by the side-start motor 7, independent of starting the engine.

On the other hand, the other end of the bilge suction pipe 9 connected to the suction side of the bilge discharge pump 8 is connected to the bilge F device 12 fixedly installed near the keel 11 on the bottom plate 10 of the hull 1, is connected to the bilge discharge pipe 13.

By configuring the bilge ejector as described above,
When discharging the bilge, the engine starting electric motor 7 and the bilge discharging pump 8 are connected, and the electric circuit is set for bilge discharging, so that the bilge can be discharged overboard.

The engine starting electric motor 7 for driving the bilge discharge pump 8 may be one installed in either the main engine or auxiliary marine internal combustion engine 2 of the ship, and the engine starting electric motor 7 can also be used to start the engine. electric motor 7 and bilge discharge pump 8
In addition to the method shown in the above embodiments, the power transmission device for the engine may be one using a belt or gears, or any device capable of transmitting the power of the engine starting motor 7 when the bilge discharge pump 8 is driven. Any device is effective.

Therefore, in a ship to which the bilge discharge device of the present invention is applied, when the engine starting motor of the marine internal combustion engine is operating, the clutch mechanism is connected to operate the bilge discharge pump, and the bilge can be discharged overboard. .

In addition, when the engine starting motor is not operating, for example when the ship is sailing normally or when the ship is stopped, the engine starting motor can drive the bilge pump separately from engine starting to discharge the bilge. can.

Therefore, according to the present invention, it is possible to discharge the bilge either when the ship is sailing or when the ship is stopped.

In addition, since the bilge discharge pump is operated by the engine starting electric motor, and there is no need to operate the internal combustion engine for bilge discharge, it is not only extremely efficient and economical in terms of energy consumption, but also There is no decrease in output.

Furthermore, by increasing the size of the engine starting electric motor, it is easy to increase the size of the bilge discharge pump.

Therefore, the device of the present invention can be applied to vessels ranging in size from small vessels to large vessels.

Furthermore, since the drive motor for the bilge discharge pump, which was conventionally provided separately, is no longer required, space and weight can be saved, and a large capacity bilge discharge pump can be installed. There is.

As a result, even when a large amount of bilge enters, the bilge can be discharged more quickly than conventional methods, making it an effective safety equipment for ships. By connecting to
It has the advantage that it can also be used as a cleaning pump and a service pump for the ship's deck, hull, etc.

[Brief explanation of the drawing]

The drawing is a partially sectional side view of a main part of a bilge discharge system for a ship carrying a marine internal combustion engine according to an embodiment of the present invention. 1... Hull, 2... Marine internal combustion engine, 7
...Engine starting electric motor, 8...Bilge discharge pump, 9...Bilge suction pipe, 13...
...Bilge discharge pipe.

Claims (1)

[Scope of utility model registration request] In a marine internal combustion engine mounted on a ship, a bilge discharge pump is installed coaxially with the rotating shaft of the side-start motive motor of the marine internal combustion engine and adjacent to the side-start motive motor via a clutch mechanism. A bilge discharge device for a ship, characterized in that: is driven by the side-starting electric motor.