A method for reducing the poppet valve and the total pressure loss with a divergence convergence channel

摘要

PPROBLEM TO BE SOLVED: To develop a poppet valve for a hyper compressor which enhances compressor performance and reduces maintenance and stopping time. PSOLUTION: A poppet valve (50) contains a valve body (11), a poppet guide (16) arranged inside the valve body (11) so as to form a flow path from a flow inlet of a valve (50) to a flow outlet, a poppet shutter (54) arranged inside the poppet guide (16), and a convergence and divergence flow path (68) formed of a part of an outer surface of the poppet shutter (54) and a part corresponding to an inner surface of the valve body (11). A method is employed to reduce closing pressure acting on the poppet shutter (54) of the poppet valve (50) is disclosed. PCOPYRIGHT: (C)2011,JPO&INPIT