Process pump

Details Process pump Process pump

1997-08-12

2000-06-06

Thorpe, Timothy S.

Pumps

Motor driven

Fluid motor

417454, 92100, F04B 4306

Patent

active

06071090&

ABSTRACT:
A diaphragm-type double-acting process pump has a reduced number of members to be assembled to a center plate and also a reduced number of hermetically sealed portions. A space defined by the center plate, together with a side cover and a side body, which are provided on both sides, respectively, of the center plate, is divided by two diaphragms into left and right driving chambers inside the diaphragms and left and right pump chambers outside the diaphragms. The left and right pump chambers are communicated with a suction opening through check valves and also communicated with a discharge opening through check valves. The center plate is fitted in a recess formed in the side body, and the side cover is brought into contact with both the side body and the center plate to clamp the center plate by the side cover and the side body. Passages for communication between the suction opening and the left and right pump chambers and passages for communication between the discharge opening and the pump chambers are provided in the side body and the side cover. A controller is provided in the center plate.

REFERENCES:
patent: 5378122 (1995-01-01), Duncan
patent: 5743169 (1998-04-01), Yamada

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