Oscillating cylinder steam engine

A simple oscillating cylinder engine, part of a Mamod SE2 working steam model

Armstrong's hydraulic motor for the Swing Bridge, River Tyne

An oscillating cylinder steam engine (also known as a wobbler in the US) is a simple steam-engine design that requires no valve gear. Instead the cylinder rocks, or oscillates, as the crank-shaft moves the piston, pivoting in the mounting trunnion so that ports in the cylinder line up with ports in a fixed port face alternately to direct steam into or out of the cylinder.

单词	Oscillating engine
释义	Oscillating engine 英语百科 Oscillating cylinder steam engine An oscillating cylinder steam engine (also known as a wobbler in the US) is a simple steam-engine design that requires no valve gear. Instead the cylinder rocks, or oscillates, as the crank-shaft moves the piston, pivoting in the mounting trunnion so that ports in the cylinder line up with ports in a fixed port face alternately to direct steam into or out of the cylinder.
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Oscillating engine

Oscillating cylinder steam engine