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Title: High pressure pulsed water jet

Patent ·
OSTI ID:7137782

The Institute of Gas Technology has designed an improved thrust generator for its high-pressure pulsed-water-jet system for fracturing pavements. The thrust generator operates on a gas-driving/oil-cocking (or vice versa) mechanism with controlled-fluid triggering of the power stroke and a floating piston for separating the working fluids. The use of concentric cylinders to form the fluid chambers results in a compact, lightweight unit suitable for repetitive operation. The new design eliminates the need for external gas accumulators or connecting hoses and decreases the overall length of the water-jet apparatus by 50%.

Assignee:
Institute of Gas Technology
Patent Number(s):
US 4190202
OSTI ID:
7137782
Country of Publication:
United States
Language:
English