Pumps – Motor driven – Fluid motor
Patent
1992-12-04
1994-04-12
Bertsch, Richard A.
Pumps
Motor driven
Fluid motor
417399, 417400, 417404, F04B 1700, F04B 3500
Patent
active
053020901
ABSTRACT:
A method for supplying at different pressures natural gas from a gas field under control of a continuous gas flow and the field pressure thereof and an apparatus for carrying out the method. The gas flow is received directly in and contained in two separate volumes constructed as a first variable volume and a second variable volume which are each cyclically varied in size synchronously by alternately increasing and decreasing the size of a corresponding volume under control of the gas flow. The increasing of the first volume effects a pressure reduction of the gas received therein for delivery to a distribution network at a reduced pressure. Reducing the size of the first volume discharges the gas at the reduced pressure and the cyclical varying of size alternately reducing and increasing thereof of the second volume under control of the gas flow effects increasing of the gas pressure to a desired higher pressure. The two volume are constructed as a coupled motor and compressor each of which is a cylinder and a piston reciprocal therein synchronously under the control of the gas flow and its pressure.
REFERENCES:
patent: 4353683 (1982-10-01), Clark
patent: 4406598 (1983-09-01), Walling
patent: 4762473 (1988-08-01), Tieben
patent: 5110267 (1992-05-01), Giordani
Basichas Alfred
Bertsch Richard A.
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