초록 ▼

A suction valve for a gas compressor includes a cylindrical valve guide cage with plurality of rows of valve guides, each with a corresponding poppet valve slidably movable therein. Each valve guide communicates with a compressor cylinder. A concentric cylindrical valve seat chair with a like plural

A suction valve for a gas compressor includes a cylindrical valve guide cage with plurality of rows of valve guides, each with a corresponding poppet valve slidably movable therein. Each valve guide communicates with a compressor cylinder. A concentric cylindrical valve seat chair with a like plurality of rows of valve seats surrounds the valve guide cage. Each valve seat communicates with a suction chamber. A plurality of openings extending through the guide cage are spaced between the rows of valve guides. To unload the compressor, the valve guide cage is movable relative to the valve seat chair, thus unseating the poppet valves and effectively opening the compressor cylinder to the suction chamber. A first embodiment uses a pneumatic cylinder to move the valve guide cage longitudinally while a second embodiment uses a rotary crank to move the valve guide cage rotationally.

대표청구항 ▼

In a valve apparatus comprising a valve seat means including at least one valve seat and a valve guide cage comprising at least one valve means normally aligned with said valve seat in alternative closed and open positions, an unloader comprising; (a) actuator means for moving said guide cage and sa

In a valve apparatus comprising a valve seat means including at least one valve seat and a valve guide cage comprising at least one valve means normally aligned with said valve seat in alternative closed and open positions, an unloader comprising; (a) actuator means for moving said guide cage and said valve seat means relative to each other to an unloaded position in which said valve means and said valve seat are misaligned and said valve is unloaded.