Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent
1982-06-25
1984-11-27
Brust, Joseph Paul
Acoustics
Geophysical or subsurface exploration
Seismic wave generation
180291, 180 751, G01V 104, G01V 109, G01V 1143
Patent
active
044846568
ABSTRACT:
An over-the-road type vehicle for transport and powering of a seismic hydraulic vibrator which is adapted to operate in either one of two modes of operation. A first mode is the conventional mode wherein the vehicle is operated over large distances at varying road speeds, obtained by use of multiple gear ratios, and varying engine speeds. The second mode of operation is in a single gear ratio, with engine under control of a governor, to operate at constant high speed, and the movement of the vehicle is by successive short traverses. In the second mode of operation the single engine alternately powers the hydraulic vibrator, then with the engine still at high speed, moves the vehicle to a new vibration point a short distance away. A high energy efficiency is provided by the use of an hydraulic torque convertor, and a high time efficiency is provided by the hydraulic torque convertor, which with engine running at or near maximum speed and the truck at a standstill, can provide a torque magnification to a value which is greater than the engine torque.
REFERENCES:
patent: 3789951 (1974-02-01), Silverman
patent: 3811530 (1974-05-01), Johnston
patent: 3905446 (1975-09-01), Ross
Norbye, et al., "Buick: The Postwar Years", 1978, pp. 55-57, Motorbooks International, Osceola, Wisconsin.
Dunham, et al., "The Buick, a Complete History", 1980, pp. 267 and 388-389, Princeton Pub. Inc., Princeton, N.J.
Brust Joseph Paul
Industrial Vehicles International Inc.
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