Housing arrangement for a synchronous plural motor fluid rotary

Details Housing arrangement for a synchronous plural motor fluid rotary Housing arrangement for a synchronous plural motor fluid rotary

1994-03-18

1995-05-23

Bertsch, Richard A.

Pumps

Diverse pumps

Including rotary nonexpansible chamber type

417205, 417238, 4174234, 4182011, 415 90, F04B 3914

Patent

active

054175518

ABSTRACT:
A fluid rotary apparatus includes rotors accommodated in a housing, driving shafts on which the rotors are mounted, upper and lower bearings for rotatably supporting upper and lower portions of each of the shafts, fluid suction and fluid-discharging openings formed in the housing, motors adapted for independently and synchronously driving each of the shafts, rotation-detecting devices for detecting the rotational angle and/or the number of rotations of each motor, contact-preventing gears for contacting each other before the rotors contact each other, and a positive displacement pump structure section sucking and discharging fluid by utilizing a closed space formed by the rotors and the housing and controlling the motors in synchronous rotation thereof in response to signals outputted from the device. The housing includes, along the axial direction of the shaft, a first section accommodating the rotors, a second section accommodating the gears and the upper bears, a third section accommodating the lower bearings, a fourth section accommodating the motors and a fifth section accommodating the detecting device. The housing sections are capable of being disassembled by fixing members removably fixing the housing sections to each other and sealing members held between the housing sections.

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patent: 4025225 (1977-05-01), Durant
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patent: 4797068 (1989-01-01), Hayakawa et al.
patent: 4904155 (1990-02-01), Nagaoka et al.
patent: 5040949 (1991-08-01), Crinquette et al.
patent: 5092740 (1992-03-01), Yamamura
patent: 5118251 (1992-06-01), Saulgeot
patent: 5165872 (1992-11-01), Fleischmann et al.
patent: 5166566 (1992-11-01), Bernhardt et al.
patent: 5197861 (1993-03-01), Maruyama et al.
patent: 5201638 (1993-04-01), Bieri

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