Plunger Pump, Plunger, and Method of Manufacturing Plunger Pump

摘要

A plunger pump includes a pump fluid end having a fluid chamber and a suction bore, discharge bore, and plunger bore in communication with the fluid chamber. A plunger is arranged to reciprocate into and out of the fluid chamber through the plunger bore. The plunger has a plunger body with an inner cavity and an insert disposed in the inner cavity such that the combined stiffness of the insert and plunger body is greater than the stiffness of the plunger body. A crank mechanism is coupled to the plunger and operable to reciprocate the plunger.

主权项

1. A plunger pump, comprising:
a pump fluid end having a fluid chamber, a suction bore in communication with the fluid chamber, a discharge bore in communication with the fluid chamber, and a plunger bore in communication with the fluid chamber; a plunger arranged to reciprocate into and out of the fluid chamber through the plunger bore, the plunger having a plunger body with an inner cavity and an insert disposed in the inner cavity, wherein a combined stiffness of the plunger body and insert is greater than a stiffness of the plunger body; and a crank mechanism coupled to the plunger and operable to reciprocate the plunger.