How should the engine be selected?
The engine is like the “heart”.
Reflect the quality of the engine mainly depends on power and economy, that is to say, the engine should have better power, good acceleration and low fuel consumption.
Inboard engine: Engine mounted on the inside of the hull, used by large yachts.
Inboard and outboard: the engine is mounted on the inside of the hull and the thrusters are mounted on the outside.
For small and medium boats.
Outboard: A machine that is not permanently attached to a ship and needs to be removed and placed on shore at any time for propulsion.
Because of its small size, large power and high speed, it is widely used in high-speed boats, fishing boats and working boats.
Jet engine: Water is sucked into the engine and spewed to the rear to gain power. No rudder is needed, just change the direction of the jet to change the direction of the ship.
Gasoline engine: smaller than diesel engine, light weight, low noise, easy maintenance.
Relatively easy to start, because of the low ignition point of gasoline, low thermal efficiency, thermal efficiency into kinetic energy travel short, kinetic energy into speed is easy to play, acceleration is agile and easy to control, suitable for promoting the ship and the small boat with light load.
Diesel engine: Compared with gasoline engines, diesel engines have the advantages of cheap diesel oil, good economy and fewer failures.
From the point of view of horsepower, diesel engine horsepower than gasoline engine horsepower, more widely used in ships.
The service life of diesel engine is relatively long and the operation cost is relatively small.
Diesel fuel has high hot spot, high thermal efficiency, long journey of thermal efficiency into kinetic energy, slow kinetic energy development and acceleration reaction, but strong ability of kinetic energy transformation and torsion increase, so it is more suitable for driving heavy ships and ships with large load.
Engine performance The engine is like the “heart” of a yacht.
Reflect the quality of the engine mainly depends on power and economy, that is to say, the engine should have better power, good acceleration and low fuel consumption.
There are many factors that affect engine power and fuel consumption, among which the most influential factors are displacement, compression ratio and valve mechanism.
Speed alone cannot be used to evaluate the performance of an engine on a yacht. On a yacht, performance is a combination of comfort, stability, handling, fuel economy and speed.
Engine brand Engine brand selection mainly depends on whether the engine manufacturer has a good service network in China, because no matter how good the engine is, service is indispensable.
At present, Penta is the best choice in China, and the main object of choice is the engine of large and medium-sized yachts.
The engine of choice for small yachts is Yamaha.
Swedish engine (Volvo Penta) — excellent overall performance and fuel efficiency, complete power system, lightweight design, low noise, small vibration, every pure Volvo Penta parts are designed and developed together with the whole machine, easy to install and maintain.
The after-sales service is excellent.
The produced engines range from 10 to 2000 HP.
Cummins Engine — The perfect combination of fuel economy, durability, reliability, light weight and compact construction.
It is easy to maintain.
American Mercury engine (Mercury) – explosive better, low fuel consumption, unique rubber shock absorber installation system.
Yamaha, Japan — Stable performance, powerful power, low fuel consumption, less pollution, rust and anticorrosive system to increase the durability of offshore engines.
German MAN engine – using the latest technology.
For example, high power injection through a porous nozzle.
Or pressurization and air cooling, which together with high pressure ensures a low pollution combustion process.
MAN diesel engine is lightweight, powerful, durable, low power consumption, and can be continuously in a work ready state.
Caterpilar Engine – has advanced power plant.
The speed can be automatically controlled when the load is small or no load, automatically reduce the engine speed and reduce fuel consumption.
Low noise, small vibration, small exhaust emissions, environmental protection, high efficiency, stable and reliable performance.
Yanmar engine – delivers great power and torque while maintaining minimal fuel consumption, is easy to operate and durable.
