In proposed coal-cutting machine, piston forces water through nozzle, expelling pulsed jet that cuts into coal face. Spring-loaded piston reciprocates at end of travel to refill water chamber. Machine a onecylinder, two-cycle, internal-combustion engine, fueled by gasoline, diesel fuel, or hydrogen. Fuel converted more directly into mechanical energy of water jet.
Pulsed, Hydraulic Coal-Mining Machine
NASA Tech Briefs ; 9 , 3
1986-01-01
Miscellaneous
No indication
English
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