Rotary piston steam engine with balanced rotary variable...

F - Mech Eng,Light,Heat,Weapons – 01 – C

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Details

F01C 20/14 (2006.01) F01C 1/14 (2006.01) F01C 1/18 (2006.01) F01L 7/02 (2006.01)

Patent

CA 2761785

Rotary piston steam engine with equal double rotary pistons is provided with a balanced rotary variable inlet cut-off valve for enhanced efficiency. The exhaust steam from the primary expansion is routed to secondary expansion avoiding back pressure for additional efficiency. The rotary valve has balanced dual inputs and outputs on opposite sides. The exhaust steam from the primary expansion is taken off when the trailing face of the rotary piston passes the inlet port of the expansion chamber housing, the exhaust outlet secondary expansion being placed approximately 180 degrees from the primary expansion inlet in the curved portion of the expansion chamber housing wherein back pressure is not imparted to the primary expansion.

La présente invention concerne une machine à vapeur à piston rotatif ayant des doubles pistons rotatifs égaux et une soupape d'isolement d'admission variable rotative équilibrée pour améliorer le rendement. La vapeur d'échappement de détente primaire est dirigée vers une détente secondaire, évitant une contre-pression et améliorant encore le rendement. La soupape rotative comprend des entrées et sorties doubles équilibrées sur des côtés opposés. La vapeur d'échappement de détente primaire est prélevée lorsque la face de fuite du piston rotatif passe l'orifice d'admission du carter de chambre de détente, la sortie d'échappement de détente secondaire étant placée approximativement à 180 degrés de l'admission de détente primaire dans la partie incurvée du carter de chambre de détente où la contre-pression n'est pas communiquée à la détente primaire.

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