PISTON COMPRESSOR Russian patent published in 2001 - IPC

FIELD: compression of gaseous media of various degree of purification. SUBSTANCE: spool valve delivery chamber with intake ports performs function of compressor delivery valves. Intake ports are connected with outlet ports of working cylinder by means of passage and are closed by spool valve. Spool valve has its own crank connected in synchronism with crank mechanism of piston. Crank of spool valve is deflected from crank mechanism opposite to direction of rotation through angle determined by definite method. Spool valve delivery chambers are located above end edge of spool valve when it is in bottom dead center position. Spool valve suction chamber provided with outlet ports performs function of suction valves. Outlet ports are connected with outlet ports of working cylinder and are covered with spool valve. Spool valve is also connected with crank mechanism of piston through its own crank. Crank of spool valve is deflected from crank mechanism of piston in way of rotation through angle determined by definite method. Spool valve suction chambers are located above end edge of spool valve when it is in bottom dead center position. EFFECT: enhanced reliability; ease in maintenance; low cost; increased productivity. 8 cl, 8 dwg