Actuator for an air gun having a reciprocating shuttle valve

Details Actuator for an air gun having a reciprocating shuttle valve Actuator for an air gun having a reciprocating shuttle valve

1980-08-25

1982-04-13

Birmiel, Howard A.

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

367144, G01V 138, G01V 1137

Patent

active

043243118

ABSTRACT:
A shuttle valve is slidingly provided within a firing chamber. A shuttle valve actuation control chamber is mounted at each end of the firing chamber. Pressurized air applied to a control chamber at one end of the firing chamber drives the shuttle valve to the opposite end of the firing chamber. An air accumulator chamber having a pressurized-air inlet is mounted adjacent each control chamber. An air passageway having a choke interconnects the firing chamber with the air accumulation chamber. A poppet valve interconnects each accumulator chamber with the adjacent control chamber to selectively apply pressurized air to one or the other of the control chambers. A solenoid vent valve fluidly communicates with each shuttle valve actuation control chamber. A bypass line fluidly interconnects each control chamber with the solenoid vent valve at the opposite end of the firing chamber.

REFERENCES:
patent: 4180139 (1979-12-01), Walker
patent: 4211300 (1980-07-01), Miller

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