Corliss steam engine - Wikipedia
Corliss engines have four valves for each cylinder, with steam and exhaust valves located at each end. Corliss engines incorporate distinct refinements in both the valves themselves and in the valve gear, that is, the system of linkages that operate the valves.
Corliss Steam Engine Basics - 50megs
What makes a Corliss valve equipped engine unique is the variable time the inlet valve is closed during the piston travel. As the piston travels the length of the stroke, a latch on the valve gear reaches a cam which is positioned by the engine governor.
Corliss Engines - wkinsler.com
—The quick closing of the steam valve giving a sharp cut off, is one of the excellent features of the Corliss gear. In the earlier engines, the steam valves were snapped shut by springs, or weighted plungers, but later, a more satisfactory operation has been obtained by means of dash pots, whose operation depends on:
How It Works: The Corliss Valve Gear Of Crossness Steam Engines
At south-east London's Crossness Pumping Station ( http://www.crossness.org.uk/ ) you can see four rotative beam engines. One of them -- Prince Consort -- r...
Chapter 14 Figures: Corliss Engines - wkinsler.com
Figs. 897 to 899—Types of Corliss steam valves. Fig. 897 shows an outside admission valve, giving a direct movement with the half moon gear; fig. 898 illustrates inside admission, the valve being operated directly by the oval arm gear. A double admission valve is shown in fig. 899.
Valve gear - Wikipedia
Large stationary engines often used an advanced form of valve gear developed by George Henry Corliss, usually called Corliss valve gear. This gear used separate valves for inlet and exhaust so that the inlet cut-off could be controlled precisely.
Corliss Steam Engine - Corliss Engine Mechanisms - Corliss Valve Gear
Corliss Valve Gear. George Corliss received US Patent 6162 for his valve gear on March 10, 1849. This patent covered the use of a wrist-plate to convey the valve motion from a single eccentric to the four valves of the engine, and it covered the use of trip valves with variable cutoff under governor control that characterize Corliss Engines ...
Corliss Steam Engine - Edmonton Power History Foundation
This type of valve gear in a steam engine offered the best thermal efficiency of any type of stationary steam engine until the refinement of the unaflow steam engine and steam turbine in the 20th century. It was capable of delivering a continuous, uniform flow of rotary power in spite of sudden changes in the load that might be imposed on the ...
CORLiSS Steam Engine
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.
| National Museum of American History
This is a crank-operated demonstration model of an early type of Corliss detachable rotary valve gear. The model is constructed of partially painted bronze and mounted on a walnut base. In the image the rotary valve is located in the wooden block at the upper left.
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