JPS6033345Y2 - Starting auxiliary equipment in marine drive systems - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a starting auxiliary machine in a boat drive system that is used as a substitute for a starting air compressor when it is inoperable when starting a diesel engine such as a fishing boat.

Generally, when starting a diesel engine that powers a ship, high-pressure air from an air compressor is used.

The air pressure of this air compressor is 1
00~20.0OOPS up to 30/9/
This high-pressure air is sent into the cylinders of a diesel engine according to the order of explosion, and the pressure moves the pistons.

The piston rotates the crankshaft via the piston rod, and when it gains momentum, it converts high-pressure air into heat and sends it into the cylinder, driving the engine.

Further, diesel engines for ships are required by law to be equipped with an emergency air compressor as an auxiliary starter in addition to the above-mentioned air compressor that serves as the main starter.

This is to prevent the diesel engine from being started by the auxiliary starter engine even if the main starter engine breaks down at sea, which could lead to serious trouble.

Conventionally, as shown in FIG. 1, a marine drive device includes a diesel engine 1, a starter main engine 2 that originally starts the diesel engine 1, and an auxiliary starter 3 that is used in an emergency.
It consists of

The main starter engine 2 for starting the diesel engine 1 is
The high-pressure air compressor 4 is piped to a charging tank 6 via a valve 5, and further to a cylinder (not shown) of a diesel engine 1.

The starting auxiliary machine 3 includes a high-pressure air compressor 7 and a diesel engine 8 that drives the air compressor 7.

Then, the air compressor 7 is connected to the charging tank 6 via the valve 9.
High pressure air is sent to the diesel engine 1 through piping.

When the diesel engine 1 operates, it rotates a propulsion propeller 10 protruding from the outside of the ship to provide propulsion to the ship.

Further, the diesel engine 1 is operably connected to a large generator capable of generating relatively large amounts of electric power by a belt, and supplies the electric power required by the ship.

However, conventional starting auxiliary equipment is used only in emergencies.
It was only operated to check its functionality during periodic inspections and inspections conducted every month or every six months.

In addition, running a generator all the time means that it continues to generate electricity even when the freezer compartment is not in use, as is the case with fishing boats on their way out, forcing extra operation and reducing fuel consumption. It was wasted.

The present invention was developed in view of the above circumstances, and provides a starting auxiliary machine for a marine drive system that enables efficient navigation by effectively using the limited equipment and fuel mounted on the vessel. The purpose is to

Therefore, the gist of this invention is to connect a small generator to the starting auxiliary equipment that drives the air compressor with the engine, and to utilize the engine's excess performance to meet regular use, to generate electricity constantly consumed by the ship. The goal is to provide the following.

The present invention will be further explained below based on embodiments shown in the drawings.

FIG. 2 is a front view of the starting accessory.

This starting auxiliary machine is used as an emergency starter for a diesel engine, similar to the conventional marine drive system shown in Fig. 1. Since it is the same as that shown in the figure, it is omitted here.

The starting auxiliary machine includes an air compressor 11 for starting the diesel engine, a diesel engine 12 that drives the air compressor 11, and a small generator 13.

The air compressor 11 has the same performance as the air compressor provided in the main starter engine, and can secure an air pressure of around 30 to 9/CI1.

Such high pressure air is discharged from the air outlet 14 and connected to the diesel engine through a pipe connected to the air outlet 14.

A pulley 16 is fixed to one end of the crankshaft 15, which is the drive shaft of the air compressor 11, and a V-belt 17 is hung there. Also attach the V-belt mentioned above.

This diesel engine 12 can be started by a motor or manually, has an independent fuel tank 20, and is compact.

A V-belt 21 is further attached to the pulley 19, and a V-belt 21 is also attached to a pulley 22 provided on the rotating shaft of the small generator 13.

Therefore, when the diesel engine 12 is started, the rotational force of the diesel engine 12 operates the air compressor 11 via the belt 17 to send high-pressure air to the diesel engine for propulsion, thereby starting the engine.

Further, the rotational force of the diesel engine 12 is
A small generator 13 is also operated via the power generator 13 to generate electricity, which is supplied as power to the lighting, radio, washing machine, etc. provided for daily life on the ship.

Therefore, in order to supply this power, a small generator 13 is required.
The power generation amount should be approximately 2KW.

As explained above, according to the present invention, a small generator that generates small electric power is provided so that it can be operated by the starting auxiliary engine, which is not normally used, and when large electric power is not required, the small generator generates small electric power. This reduces fuel consumption and extends the life of the main generator.

Additionally, the small generator makes less noise during operation, making the ship quieter.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of a conventional marine drive device, and FIG. 2 is a front view of a starting auxiliary machine showing an embodiment of the present invention. 11... Air compressor, 12... Diesel engine, 13... Small generator.

Claims (1)

[Scope of utility model registration request] A diesel engine outputs the ship's propulsion power, and a generator connects to the diesel engine to generate large amounts of electricity.
a main starter engine that is connected to the diesel engine and includes an air compressor that sends high-pressure air to start the diesel engine and a drive motor thereof; and a main starter engine that starts the diesel engine when the air compressor of the main starter engine is inoperable. In a marine drive device comprising an air compressor that sends high-pressure air and an emergency starting auxiliary machine equipped with an engine that drives the air compressor, a small generator is connected to the engine of the starting auxiliary machine and operated, A starting auxiliary machine for a marine drive system characterized by generating a small amount of electric power.