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A uniflow engine is a piston engine where gas flow through the cylinder proceeds in a single unidirectional flow, without reversals between strokes. This gives thermodynamic advantages as each group of ports can stabilise at an equilibrium temperature , rather than being alternately heated and cooled.
Uniflow engines potentially allow greater expansion in a single cylinder without the relatively cool exhaust steam flowing across the hot end of the working cylinder and steam ports of a conventional "counterflow" steam engine during the exhaust stroke. This condition allows higher thermal efficiency.
The engine is the largest reciprocating engine in the world. The 14-cylinder version first entered commercial service in September 2006 aboard the Emma Mærsk . The design is similar to the older RTA96C engine, but with common rail technology (in place of traditional camshaft , chain gear , fuel pump and hydraulic actuator systems).
The 12V-53 is a low-production / prototype engine consisting of two coupled 6V-53 engines; fewer than 20 were estimated to have been built, mostly for marine service in generator sets. One of the 6V-53 engines was a left-hand rotation and the other was right-hand rotation; they were coupled at their flywheels. [9]
The Detroit Diesel Series 110 is a two-stroke diesel engine series, available in straight-6 cylinder configuration (in keeping with the standard Detroit Diesel practice at the time, engines were referred to using a concatenation of the number of cylinders and the displacement, so this was a model 6-110).
In 1955 the UD name was born, when Minsei Diesel Industries introduced a range uniflow-scavenging 2-cycle diesel engine. Of course, the UD stood for "Uniflow Diesel", named after the engine they had invented for use in their trucks. The production of various trucks and buses with 81 kW (110 PS) UD3, 110 kW (150 PS) UD4 and 169 kW (230 PS) UD6 ...
In a double-acting engine the exhaust ports were in the middle of the cylinder. Almost all uniflow engines were large stationary types, but the system was tried by, among others, the North Eastern Railway in England, as described by Tuplin (see sources). Briefly, the system worked well and obtained a small increase in economy by decreasing fuel ...
Uniflow diesel engine; Uniflow steam engine; UniFLOW Output Manager (Printing software) This page was last edited on 3 July 2021, at 23:28 (UTC). Text is ...