Patent ID: 6666656
Filing Date: 2003-12-23
Classification: F04B,Y10T

Abstract:
In a fluid compressor having a crankcase defining a chamber, a cylinder communicating with said chamber through an outer peripheral wall of said chamber having an exhaust valve at one end thereof, and a piston reciprocal in said cylinder having an intake valve, the improvement comprising:a) a fluid intake port communicating with said chamber substantially diametrically opposed to said cylinder; b) a crankshaft mounted for rotation in said chamber including gate control means rotatably mounted on said crankshaft for opening and closing said intake port through each revolution of said crankshaft; c) said gate control means being operative in response to rotation of said crankshaft through each revolution to close said intake port a selected time interval prior to advancement of said piston to one end of its stroke adjacent to said exhaust valve and to open said intake port a selected time interval prior to advancement of said piston to an opposite end of its stroke away from said exhaust valve; and d) wherein said intake valve is operative in response to increasing fluid pressure in said crankcase as said piston moves toward said opposite end of its stroke to move to an open position for passage of fluid under pressure from said chamber through said intake valve toward said exhaust valve.