Recirculating linear gas drive system
First Claim
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1. A system comprising:
- produced gas a pipeline with gas at a lower pressure a manifold with flow control valve a reciprocating power unit a drive connection from power unit to a powered unit a flow-directing switching means which, in time with the drive'"'"'s reciprocating movement to the end-point positions, switches communication of produced gas and pipeline with the appropriate sides of the power unit.
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Abstract
A system to provide mechanical energy to well-head equipment by directing pressurized gas existing in nearby pipelines to an engine. The engine is a linearly reciprocating piston in a closed cylinder driven by pressure differentials between the gas on either side of its piston, the differential being controlled by a switching valve which directs higher and lower pressured gas to the appropriate side of the piston, and which recirculates spent gas from the lower pressure side of the piston back to the pipeline. The system is a closed system, and avoids venting or flaring gas used in the engine.
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Citations
7 Claims
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1. A system comprising:
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produced gas a pipeline with gas at a lower pressure a manifold with flow control valve a reciprocating power unit a drive connection from power unit to a powered unit a flow-directing switching means which, in time with the drive'"'"'s reciprocating movement to the end-point positions, switches communication of produced gas and pipeline with the appropriate sides of the power unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification