Pulsation causing valve for a plural piston pump
AssigneeDiversified Dynamics Corporation
InventorSteve Larson
Life of this patent
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Abstract
A valve for causing pulsatile flow in a multi-piston plunger pump includes a valve poppet, a valve seat, and a spring biasing the valve poppet against the valve seat; and a mechanism holding the valve poppet in an open position, thereby producing pulsatile flow from the pump. The mechanism includes a magnet and an adjustment mechanism for moving the magnet toward and away from the valve poppet. When the magnet is moved toward the valve poppet, the magnet attracts the poppet away from the valve seat, and when the magnet is moved away from the valve poppet, the magnet releases the poppet. The spring then biases the poppet against the valve seat in a closed position.
Claims20
An apparatus for disabling a valve assembly in a pump, the pump defining a bore for receiving the valve assembly, the valve assembly including a valve poppet, a valve seat, and a spring biasing the valve poppet against the valve seat, the apparatus comprising:
- (a) a magnet attracting the valve poppet away from the valve seat, thereby holding the valve poppet in an open position;
- and
- (b) an adjustment mechanism for moving the magnet toward and away from the valve poppet, whereby when the magnet is moved toward the valve poppet, the magnet attracts the poppet away from the valve seat, and when the magnet is moved away from the valve poppet, the magnet releases the poppet, the spring thereby again biasing the poppet against the valve seat in a closed position.
A valve for causing pulsatile flow in a multi-piston plunger pump, the valve comprising:
- (a) a valve poppet, a valve seat, and a spring biasing the valve poppet against the valve seat;
- and
- (b) a mechanism holding the valve poppet in an open position, thereby producing pulsatile flow from the pump.
Dependencies are inferred from the claim text.