oliver evans invented the horizontal steam engine in the 1800s.
who invented the horizontal steam engine in the 1800s?
oliver evans
a steam engine fitted with rotary valves and having variable valve timing was invented by and named for an american engineer, george henry corliss, in 1849. engines fitted with corliss valve gear offered the best thermal efficiency of any type of stationary steam engine until the refinement of the uniflow steam engine and steam turbine in the 20th century. corliss engines were generally about 30 percent more fuel efficient than conventional steam engines with fixed cutoff. this increased efficiency made steam power more economical than water power, allowing industrial development away from millponds.





























section::::description of the pawnee engine.
corliss steam engine (pawnee, oklahoma)
two different types of engines and boilers were used with this class. hms "druid", the first ship completed, had a two-cylinder horizontal steam engine driving a single propeller. four rectangular boilers provided steam to the engine at a working pressure of . the engine produced a total of which gave her a maximum speed of about during sea trials. in contrast, the two later ships had a two-cylinder horizontal compound expansion steam engine, driving a single 15-foot or propeller. six cylindrical boilers provided steam to the engines at a working pressure of . the engines produced between which gave the two ships a maximum speed over . "briton" and "thetis" carried of coal, while "druid" carried an additional . although no information is available on their range, admiral g. a. ballard estimated that "druid" had only about two-thirds the range of her sisters, despite the additional coal that she carried, due to the greater efficiency of the compound expansion engines.
briton-class corvette