F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/142, 166/44
F04B 47/02 (2006.01)
Patent
CA 1138713
ABSTRACT OF THE DISCLOSURE An inlet poppet valve assembly for a reciprocating piston of a downhole pump includes a valve body having a valve bore disposed therein. A poppet base member is disposed in the valve bore and includes an inner bore having a poppet seat disposed about an end of the inner bore. A poppet re- tainer assembly is located above the poppet base member and below the cylinder and is connected to an end of the base mem- ber and has a port means disposed therethrough for communi- cating the cylinder with the inner bore of the base member. A valve poppet has a cylindrical poppet body with a flange por- tion extending radially outwardly from the poppet body. The valve poppet is movable between a closed position wherein a surface of the flange portion facing the poppet seat sealingly engages the poppet seat to isolate the port means of the poppet retainer assembly from the inner bore of the base member, and an open position wherein the valve poppet is disengaged from the poppet seat to communicate the port means of the poppet retainer assembly with the inner bore of the base member. A spring is disposed between the poppet retainer assembly and the valve poppet for resiliently urging the valve poppet toward its closed position. An inlet poppet spacer member is located in the valve bore below the poppet base member and has an inlet passage therethrough for communicating the inner bore of the poppet base member with the source of fluid to be pumped by the downhole pump.
382830
Company Halliburton
Swabey Ogilvy Renault
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