دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the block in a mud pump that is guided to move in a straight line and serves as a connection between the pony rod and the Commenting rod.

n: The scroll box of drill pump, moving along guide in right line. Used to connect drag link and pitman.

n: 1. a metal shaft that joins the piston to the crankshaft in an engine. 2. a metal shaft in a mud pump, one end of which is connected to the piston and the other to the pony rod.

n: 1. a sucker rod, shorter than usual, used to make up a sucker rod string of desired length. Pony rods are usually placed just below the polished rod. 2. the rod joined to the connecting rod and piston rod in a mud pump.

a short rod for spacing out a rod string.