Pumps – Motor driven – Electric or magnetic motor
Patent
1996-11-18
1999-11-30
Thorpe, Timothy S.
Pumps
Motor driven
Electric or magnetic motor
417415, 417521, F04B 1700
Patent
active
059931744
ABSTRACT:
The invention provides a pulsation free pump which includes a plurality of hydraulic diaphragm pumps, a plurality of plungers corresponding to the hydraulic diaphragm pumps, each of the plungers performing a reciprocal movement which provides a pumping cycle operation of corresponding one of the plurality of hydraulic diaphragm pumps and an adjustable exhaust differential pressure regulating valve. Each of the pumping cycles includes a discharge process and a subsequent suction process. A controller is provided for controlling reciprocal movements of the plungers in association with each other at a predetermined difference in phase of the pumping cycle. The controller controls the reciprocal movement of each of the plungers so as to set a preliminary pressure-rising process just before the discharge process so that a discharge flow rate of each of the diaphragm pumps is initiated to increase without any time delay when the pumping cycle enters into the discharge process so that a total discharge flow rate defined by the sum of the discharge flow rates of all of the plungers is kept constant and free of any substantial pulsation.
REFERENCES:
patent: 4089624 (1978-05-01), Nichols et al.
patent: 4453898 (1984-06-01), Leka et al.
patent: 4734187 (1988-03-01), Visentin et al.
patent: 4830589 (1989-05-01), Pareja
patent: 4848606 (1989-07-01), Taguchi et al.
patent: 4924722 (1990-05-01), Bacardit et al.
patent: 5011377 (1991-04-01), Sagawa et al.
patent: 5145339 (1992-09-01), Lehrke et al.
Gartenberg Ehud
Nikkiso Co. Ltd.
Thorpe Timothy S.
LandOfFree
Pulsation free pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pulsation free pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsation free pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1664468