Thrust generator

Details Thrust generator Thrust generator

1976-11-01

1977-10-11

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Methods of operation

60371, 60414, 60416, F15B 102, F15B 1522

Patent

active

040528502

ABSTRACT:
A hybrid hydraulic-pneumatic thrust generator wherein pneumatic action is used for cocking and for cushioning while hydraulic action is used for providing the driving force. The output can be increased by reducing the cocking or cushion gas pressure required to dislodge the poppet valve from its seated position in the driving port by introducing pressurized oil into the driving port between the poppet valve and poppet actuator. The thrust generator of this invention has a relatively flat thrust pattern making it especially suitable as a driving mechanism for high velocity water jets for fracturing concrete and the like.

REFERENCES:
patent: 2665551 (1954-01-01), Chenault
patent: 2881739 (1959-04-01), Huppert
patent: 3058310 (1962-10-01), Panissidi
patent: 3150488 (1964-09-01), Haley

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