Patent ID: 9657568
Date: 2017-05-23
CPC Classifications: F01B,F01L

Claim:
1. A steam engine comprising: a cylinder, having two ends and a sidewall, having an exhaust port disposed in said sidewall; a reciprocating piston disposed in said cylinder, separating said cylinder into an upper cylinder region and a lower cylinder region, said reciprocating piston in communication with a piston rod; an upper steam chest, disposed at one end of said cylinder; a lower steam chest, disposed at a second end of said cylinder, wherein said piston rod extends through said lower steam chest; an upper valve plate comprising: a lower valve plate comprising: wherein pressure created by a flow of steam from said upper steam chest into said upper cylinder region causes said upper inlet valve to deflect to a closed position, wherein said upper inlet valve seals against said upper inlet port, thereby preventing the flow of steam between said upper steam chest and said upper cylinder region and wherein pressure created by a flow of steam from said lower steam chest into said lower cylinder region causes said first and second lower inlet valve to deflect to a closed position, wherein said first and second lower inlet valve each seals against a respective lower inlet port, thereby preventing the flow of steam between said lower steam chest and said lower cylinder region.