دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a steel member connected to each end of the shaft extending from each side of the speed reducer on a beam pumping unit.

n: see gear reduction unit.

a pump or motor speed reducer.

n: the machine that imparts reciprocating motion to a string of sucker rods extending to the positive-displacement pump at the bottom of a well. It is usually a beam arrangement driven by a crank attached to a speed reducer.

n: a set of gears installed between a prime mover and the equipment it drives to reduce the running speed. For example, on a beam pumping unit, the engine may run at a speed of 600 revolutions per minute, rot the pumping unit it drives may need to operate at 20 strokes per minute. The speed reducer makes it possible to obtain the correct pump speed.