Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent
1996-08-06
1997-10-14
Thorpe, Timothy
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
F04B 4906
Patent
active
056765258
ABSTRACT:
A pump having electronic and mechanical components which allow an individually adjustable operation. Certain components periodically transform a driving current for an electrical drive. An adjustable clock generator adjusts transformation frequency. Pumping volume is determined and limited as desired by means of a position detection device. The pump also includes components for measuring the driving current that interact with an adjustable current-limiting device, thus allowing the pumping pressure of the pump to be adjusted and limited. The pump may include several pump cylinders which are controlled by a position control circuit in such a way that the generated partial vacuum follows a predetermined time characteristic.
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Berner Werner
Riedweg Robert
Neovation AG
Thai Xuan M.
Thorpe Timothy
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