BuyNSN Blog

The majority of simple, open-cycle gas turbines feature a compressor, combustion chamber, and turbine unit. Air is compressed inside the compressor, fuel is added to the combustion chamber, and then the hot gasses expand inside the turbine. Two pressures are considered in a pressure ratio, and because the compressor and turbine are attached to a common shaft, some of the work created by the turbine is lost due to running the compressor. For the betterment of your knowledge, open cycle gas turbines are detailed in the following article.

With so many machines and vehicles necessitating engines to operate, engines are available in a wide range of types. For boats in particular, the engines that power such apparatuses fall into one of three categories: outboard, sterndrive, or jet engine variations. In this blog, we will provide a brief overview of each engine type, the kind of propulsion they use, and how they work.

A piston is part of a reciprocating engine with the purpose of transferring the force from the expanding gases in the cylinder to the crankshaft. In steam  reciprocating engines, valves are necessary to control the entry and exit of gases at the proper time in the piston’s cycle to ensure the engine is functioning properly. Piston engines mounted on aircraft have utilized several different types of valves over the years.

Jet engines are complex machines. By definition, they’re “any of a class of internal-combustion engines that propel aircraft by means of the rearward discharge of a jet of fluid, usually hot exhaust gases generated by burning fuel with air drawn in from the atmosphere.” Originally adapted from the piston engine, the first jet engine to incorporate a turbine design dates back as far as 1921. English inventor Frank Whittle patented his design in 1930, began testing in 1937, and achieved first flight in 1941. While development for Whittle was slow due to lack of interest, independent work in Germany was significantly faster with a patent issued in 1935 and the very first flight a turbojet-powered aircraft, the Heinkel HE-178, by 1939.