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The trunk engine, another type of direct-acting engine, was originally developed as a means of reducing an engine's height while retaining a long stroke. (A long stroke was considered important at this time because it reduced the strain on components.) A trunk engine locates the connecting rod within a large-diameter hollow piston. This "trunk ...
Consequently, steam engine pistons are nearly always comparatively thin discs: their diameter is several times their thickness. (One exception is the trunk engine piston, shaped more like those in a modern internal-combustion engine.) Another factor is that since almost all steam engines use crossheads to translate the force to the drive rod ...
Single-acting pistons of a typical modern diesel car engine. In contrast to steam engines, nearly all internal combustion engines have used single-acting cylinders. Their pistons are usually trunk pistons, where the gudgeon pin joint of the connecting rod is within the piston itself. This avoids the crosshead, piston rod and its sealing gland ...
The trunk engine was largely replaced by the double piston-rod engine. [ 2 ] [ 8 ] This was a return connecting rod engine, with the crankshaft between the crosshead and cylinder. Four piston rods were used to pass around the crankshaft, both above and below, and also to each side of the crank, as the crank throw was wider than the vertical ...
A crosshead as part of a reciprocating piston and slider-crank linkage mechanism. Cylindrical trunk guide Hudswell Clarke Nunlow; crosshead and two slide bars. In mechanical engineering, a crosshead [1] is a mechanical joint used as part of the slider-crank linkages of long stroke reciprocating engines (either internal combustion or steam) and reciprocating compressors [2] to eliminate ...
Friedrich Sass also believes that Lauster designed an improved fuel injector vaporiser for the Diesel engine. [11] In 1901, Lauster designed the first trunk piston Diesel engine – the MAN DM series – together with Wilhelm Eberle, [12] and in 1904, they designed the first submarine Diesel engine; [13] however, it was never built. [14]