Inboard motor

As an inboard engine ( colloquially Inboard or Inborder ) is called a main drive motor on a boat or ship that is permanently installed in the fuselage. The drive shaft must therefore be performed at any point through the hull to the outside. At this point, the rotating shaft is sealed by a stuffing box.

The first inboard engine was the steam engine (from 1783).

Today we use the term inboard engine only in the sports and recreational boating to delineate these boats from the group of boats with outboard motor.

For commercial vessels see marine engine.

When inboard engine power is transmitted to the propeller:

  • A rigid shaft ( when the engine is fitted amidships )
  • Via a shaft reversing gear ( to reverse direction when the motor of space or weight reasons, is installed at the rear), sometimes referred to as V- drive
  • A boat on the rear mounted, steerable and trimmable sterndrive
  • A cultivated under the boat to 360 ° swiveling pod drive

Alternatively, a jet drive to be installed.

History

Gottlieb Daimler built the together with Wilhelm Maybach invented by him engine 1886 in a 6-meter long open boat and took the first test drives on the Neckar. He settled this " device for operating the screw shaft of a ship " patented under No. 39367. According to reports, the historians, the citizens had the time so afraid of the " slightly explosive" gasoline that Daimler was able to test his engine on the water undisturbed, as within the village. The sale of motorized boats wore in the following years significantly to the revenue of the company from Daimler and Maybach.

The Daimler engines were used in the later appearing motorboat races with success. With a 35 hp two- cylinder engine, the motor boat races of Nice in 1901 won. He reached a top speed of 37 km / h At the Olympic Games in 1908, the boat Daimler wanted to take part II. It did not reach the starting line.

Carl Benz was dedicated to the engine invented by him mainly to the automotive industry. But he also presented in 1887 a motorized boat on the Rhine at Mannheim and got the " power transmission and Umsteuerungs device " patent DRP 46612th A 6.2 meter boat with 1.5 hp motor, he offered for 2995 to Mark sale.

Motors and manufacturers

There are both engines that are produced only for the water sports, as well as upgraded automobile engines to use. In racing, also rebuilt motorcycle engines are used in a class of up to 1,000 cc.

The motors are four-stroke engines in general. In the GDR, many two-stroke engines of the brand Wartburg were installed. Rare find Wankel engines and gas turbines and electric motors used in watercraft.

Range of manufacturers, including historical (alphabetically ):

  • Lamborghini, gasoline engines, were very popular in the offshore racing boat sport
  • MerCruiser - the Inborder trademark of Mercury Marine, selling is mainly with their own sterndrives
  • Perkins, the first boat was a converted diesel tank engine, today range of 5 to 2,000 kW (61 liters )
  • Scania engines of 221 kW ( 300 hp) to 588 kW ( 800 hp) with 12 to 16 liters capacity
  • Seatek, holds with 252.27 km / h world record for diesel-powered boats
  • Volvo Penta production since 1907
  • Volkswagen Marine, diesel engines of 29 kW (40 hp) to 257 kW (350 hp)
  • Yanmar, first petrol engine in 1921, today diesel engines of 6.6 kW ( 9 hp) to 662 kW ( 900 hp)

Swell

  • Ship propulsion
  • Combustion engine
  • Powerboating
Water motorsports at the 1908 Summer Olympics Offshore Powerboat Racing Perkins Engines
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