Title:
PRESSURE BALANCED INERTIA SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO2002103396
Kind Code:
A3
Abstract:
The present invention provides a pressure-balanced inertial valve assembly for use in marine seismic energy sources such as air guns. The valve includes a poppet (114) having a first seal and a second seal. A pressure chamber (120) containing a fluid under pressure communicating with the first and second seals to substantially balance the pressure across the seals. An inertial mass is coupled to the poppet. A coil assembly is disposed about the inertial mass. A central guide pin (148) provides guided movement for axial translation.
Inventors:
PATEL NAVIN
MCCALL DAVID
MCCALL DAVID
Application Number:
PCT/US2002/019341
Publication Date:
January 08, 2004
Filing Date:
June 18, 2002
Export Citation:
Assignee:
INPUT OUTPUT INC (US)
International Classes:
F16K31/06; G01V1/137; (IPC1-7): G01V1/38
Foreign References:
| US4928785A | 1990-05-29 | |||
| US3929315A | 1975-12-30 | |||
| US3800832A | 1974-04-02 | |||
| US5301920A | 1994-04-12 | |||
| US5396926A | 1995-03-14 |
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