公开(公告)号：US20200309114A1

公开(公告)日：2020-10-01

申请号：US16765719

申请日：2018-12-18

申请人： Q.E.D. Environmental Systems, Inc.

发明人： John F. SCHAUPP ,  David A. FISCHER ,  Steven Richard WELLS ,  Donald Lee SCHULTZ ,  Matthew Thomas MCKEOWN ,  William C. ALLEN, III

IPC分类号： F04B49/06 ,  F04B53/22

摘要： The present disclosure relates to a pneumatically driven fluid pump apparatus having an outer pump housing for collecting liquid to be pumped, and a valve assembly in communication with liquid admitted through an inlet end of the outer pump housing and collecting within the outer pump housing. The valve assembly includes a housing assembly and a poppet valve assembly disposed within the housing assembly to act as a one-way check valve when pumping collected liquid out from the outer pump housing. The poppet valve assembly includes a poppet valve component including a relief area that helps to depressurize an interior area of the valve assembly, to facilitate rapid movement of the poppet valve element from an open position toward a closed position, when only a pressurized fluid flow being used to eject the collected liquid is flowing past the poppet valve component.