Quintuplex mud pump

Details Quintuplex mud pump Quintuplex mud pump

2008-10-03

2011-12-27

Patel, Vip (Department: 2889)

Pumps

Expansible chamber type

Plural pumping chambers

C417S523000, C417S273000

Reexamination Certificate

active

08083504

ABSTRACT:
A quintuplex mud pump has a crankshaft supported in the pump by external main bearings. The crankshaft has five eccentric sheaves, two internal main bearing sheaves, and two bull gears. Each of the main bearing sheaves supports the crankshaft by a main bearing. One main bearing sheave is disposed between second and third eccentric sheaves, while the other main bearing sheave is disposed between third and fourth eccentric sheaves. One bull gear is disposed between the first and second eccentric sheaves, while the second bull gear is disposed between fourth and fifth eccentric sheaves. A pinion shaft has pinion gears interfacing with the crankshaft's bull gears. Connecting rods on the eccentric sheaves use roller bearings and transfer rotational movement of the crankshaft to pistons of the pump's fluid assembly.

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Office Action in counterpart Canadian Appl. No. 2,696,683, dated Sep. 21, 2011.

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