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US 4,734,011 AGranted
Pulsation dampener for reciprocating pumps
AssigneeTexaco Inc.
InventorRussell W. Hall, Jr.
Life of this patent
Estimating the term…
Abstract
A pumping system includes a pump having a plurality of cylinders, a suction manifold and a discharge manifold. Each cylinder includes a piston connected to a pump shaft. The system also includes apparatus for rotating the pump shaft so as to move the pistons. A fluid enters the pump by way of the suction manifold, is compressed in the pump by the pistons and the compressed fluid leaves the pump by way of the discharge manifold. Equipment connected to the discharge manifold affects the discharging of the compressed fluid in accordance with the number of cylinders and the rotational frquency of the pump shaft.
Claims8
A pumping system comprising:
- suction means for receiving a fluid,
- a plurality of cylinder means connected to the suction means for compressing the fluid, each cylinder means having a piston;
- a pump shaft connected to the pistons in the plurality of cylinder means;
- drive means for rotating the pump shaft so as to move the pistons in the plurality of cylinder means;
- a discharge manifold connected to the plurality of cylinder means in a manner so as to discharge the compressed fluid from the plurality of cylinder means;
- and
- affecting means connected to the discharge manifold and to the pump shaft means for affecting the discharging of the compressed fluid in accordance with the number of cylinder means and the rotational frequency of the pump shaft, and wherein the affecting means includes:
- two compensating pistons which enter the discharge manifold, and
- means for driving one compensating piston at a first fundamental frequency and the other compensating piston at a second harmonic frequency, both compensating piston frequencies being related to the number of cylinder means and to the rotational frequency of the pump shaft.
6 more elements
A pumping system comprising:
- suction means for receiving a fluid,
- a plurality of cylinder means connected to the suction means for compressing the fluid, each cylinder means having a piston;
- a pump shaft connected to the pistons in the plurality of cylinder means;
- drive means for rotating the pump shaft so as to move the pistons in the plurality of cylinder means,
- a discharge manifold connected to the plurality of cylinders in a manner so as to discharge the compressed fluid from the plurality of cylinder means;
- and
- removal means connected to the discharge means for removing the lowest frequencies of pulsation of the discharging compressed fluid regardless of the rotational speed of the pump shaft, and wherein the removal means includes:
- two compensating pistons which enter the discharge manifold, and
- means for driving one compensating piston at a first frequency and the other compensating piston at a second frequency, both compensating piston frequencies being related to the number of cylinder means and to the rotational frequency of the pump shaft.
6 more elements
A pumping method comprising the steps of:
- receiving a fluid;
- compressing the fluid with a plurality of cylinder means, each cylinder means having a piston;
- rotating a pump shaft connected to the pistons so as to move the pistons in the plurality of cylinder means;
- discharging the compressed fluid from the plurality of cylinder means through a discharge manifold;
- and
- affecting the discharging of the fluid in accordance with the number of cylinder means and the rotational frequency of the pump shaft, wherein the affecting step includes:
- locating two compensating pistons in the discharge manifold, and
- driving one compensating piston at a first frequency and the other compensating piston at a second frequency, both compensating piston frequencies being related to the number of cylinder means and to the rotational frequency of the pump shaft.
5 more elements
A pumping method comprising:
- receriving a fluid;
- compressing the fluid with a plurality of cylinder means, each cylinder means having a piston;
- rotating a pump shaft connected to the pistons so as to move the pistons in the plurality of cylinder means;
- discharging the compressed fluid from the plurality of cylinders through a discharge manifold;
- and
- removing the lowest frequencies of pulsation of the discharging compressed fluid regardless of the rotational speed of the pump shaft, wherein the removal step includes:
- locating two compensating pistons in the discharge manifold, and
- driving one compensating piston at a first frequency and the other compensating piston at a second frequency, both compensating piston frequencies being related to the number of cylinder means and to the rotational frequency of the pump shaft.
5 more elements
Dependencies are inferred from the claim text.