order to exit and enter the port can not use the sails, because it would be a bit 'dangerous, for obvious reason that I am not here to enumerate. So we need the classic engine. This part may seem less interesting than those that follow. Certainly the engine fans already know everything and will be facilitated to understand and study this part.
The engine is used for sailing boats used in addition to the maneuvers of exit and entry into port, even as an auxiliary engine for any case during our navigation.
How are these engines? Marine engines are either endothermic, that is, internal combustion engines. There are four phases: intake, compression, combustion or expansion, exhaust.
motors can be divided in cycles of phases:
four times: the cycle is complete with two movements complete and return the four phases are separated from one another.
2 times: a complete movement and return, the phases overlap each other.
addition the engine can have two types of fuel.
Gasoline: Gasoline is the fuel used. During the intake stroke is fed into the combustion chamber, a mixture of air and fuel. The power stroke is caused by the spark of the candle.
Advantages:
- more power at the same weight and dimensions;
- absolute dependence on an electrical installation;
- refined fuel, and cleaner, not a problem of filter clogging.
Disadvantages:
- absolute dependence on an electrical installation;
- high combustibility
for the type of fuel - fuel that produces volatile highly flammable vapors.
Diesel: Diesel fuel types used. During the intake stroke only air is immense in the combustion chamber. The power stroke takes place by injecting fuel into the combustion chamber that ignites on contact with air and high temperature.
Advantages:
- higher yield;
- cheaper fuel;
- independently from an electrical system;
- low combustibility for the type of fuel;
- safer fuel does not produce volatile highly flammable vapors.
Disadvantages:
- less refined fuel, clogging filters.
addition to this major difference, the motor may differ by location and transmission. Inboard
: Engine and transmission inside the boat.
Outboard: Engine and transmission to the outside of the boat.
Enfrofuoribordo: Engine and transmission within and outside the boat.
addition, the engine must be cooled, if not get warm. They are used two ways: the direct and indirect.
Open = Direct . The pump of the fishing sea water and sends it directly to cool the engine parts concerned and is expelled from the tailpipe, the engine used less power.
Advantages:
- lighter;
- less mechanisms, and therefore more reliable.
Mixed = Indirect . The pump of the fishing sea water and sends it to cool water mild closed-circuit cooling. It is then expelled from the exhaust pipe cooling, in turn, is fresh water to cool parts of the world involved. The temperature is maintained at optimum levels by the thermostatic valve which excludes the heat exchanger when the temperature is still low, and alerts when the temperature is too high. Used engine more power.
Advantages:
- smaller scale in the cooled parts.
- best performance at the start and at lower temperatures.
The direct cooling system is most commonly used, although the technology and typology of the new engines are moving towards the realization of the indirect.
Fair winds to all!
The engine is used for sailing boats used in addition to the maneuvers of exit and entry into port, even as an auxiliary engine for any case during our navigation.
How are these engines? Marine engines are either endothermic, that is, internal combustion engines. There are four phases: intake, compression, combustion or expansion, exhaust.
motors can be divided in cycles of phases:
four times: the cycle is complete with two movements complete and return the four phases are separated from one another.
2 times: a complete movement and return, the phases overlap each other.
addition the engine can have two types of fuel.
Gasoline: Gasoline is the fuel used. During the intake stroke is fed into the combustion chamber, a mixture of air and fuel. The power stroke is caused by the spark of the candle.
Advantages:
- more power at the same weight and dimensions;
- absolute dependence on an electrical installation;
- refined fuel, and cleaner, not a problem of filter clogging.
Disadvantages:
- absolute dependence on an electrical installation;
- high combustibility
for the type of fuel - fuel that produces volatile highly flammable vapors.
Diesel: Diesel fuel types used. During the intake stroke only air is immense in the combustion chamber. The power stroke takes place by injecting fuel into the combustion chamber that ignites on contact with air and high temperature.
Advantages:
- higher yield;
- cheaper fuel;
- independently from an electrical system;
- low combustibility for the type of fuel;
- safer fuel does not produce volatile highly flammable vapors.
Disadvantages:
- less refined fuel, clogging filters.
addition to this major difference, the motor may differ by location and transmission. Inboard
: Engine and transmission inside the boat.
Outboard: Engine and transmission to the outside of the boat.
Enfrofuoribordo: Engine and transmission within and outside the boat.
addition, the engine must be cooled, if not get warm. They are used two ways: the direct and indirect.
Open = Direct . The pump of the fishing sea water and sends it directly to cool the engine parts concerned and is expelled from the tailpipe, the engine used less power.
Advantages:
- lighter;
- less mechanisms, and therefore more reliable.
Mixed = Indirect . The pump of the fishing sea water and sends it to cool water mild closed-circuit cooling. It is then expelled from the exhaust pipe cooling, in turn, is fresh water to cool parts of the world involved. The temperature is maintained at optimum levels by the thermostatic valve which excludes the heat exchanger when the temperature is still low, and alerts when the temperature is too high. Used engine more power.
Advantages:
- smaller scale in the cooled parts.
- best performance at the start and at lower temperatures.
The direct cooling system is most commonly used, although the technology and typology of the new engines are moving towards the realization of the indirect.
Fair winds to all!
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