Assertion: steam engine's power | /r/HasProperty | achieved
Facets:
value: by keeping the inlet valve
type: MANNER
Source sentences:
text: This is not the ideal arrangement for a steam engine, though, because greatest power is achieved by keeping the inlet valve open throughout the power stroke (thus having full boiler pressure, minus transmission losses, against the piston throughout the stroke) while peak efficiency is achieved by only having the inlet valve open for a short time and then letting the steam expand in the cylinder (expansive working).