Marine steam engine 4 min read
Arrangement And Efficiency Of Boilers – Water Tank Boilers.
Low-pressure boilers. The first boilers fitted to work marine engines were of the rectangular, or ‘box’ form; an example of…
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Marine steam engine 4 min read
Quadruple expansion engines.
In many cases in the mercantile marine the stage expansion principle is carried still further, and quadruple expansion engines fitted,…
Marine steam engine 2 min read
Triple expansion engines.
With initial steam pressures above 100 lbs. per square inch, the variation of temperature in each cylinder of an ordinary…
Marine steam engine 2 min read
Vertical (compound) engines.
The vertical type of engine, with cylinders at the top and crank-shaft below, was adopted for merchant ships long before…
Marine steam engine 4 min read
Early screw engines.
The majority of steamers, both war and mercantile, built during the years 1850-60, were fitted with horizontal screw propeller engines…
Marine steam engine 2 min read
Return connecting-rod engines.
This kind of engine was adopted by the majority of marine engineering firms to enable the horizontal cylinders to be…
Marine steam engine 3 min read
Gearing for screw engines and its abandonment
In order to attain the same speed of ship the screw propeller had to be driven at a much greater…
Basics 2 min read
Airbus Announces Ceremony for New Mobile, AL Factory
Airbus is expanding its production operations to the East Coast. Earlier this month, the aerospace manufacturing company announced plans to…
Marine steam engine 3 min read
Defects of paddle-wheels
The paddle-wheel possessed many practical disadvantages which interfered with progress beyond a certain point. Its performance was much affected by…
Marine steam engine 2 min read
Abandonment of side-lever engines
Attempts were soon made to reduce the space required by the machinery, and the side-levers were abandoned and direct-acting engines…