Seakeeper 8000 GYRO, Руководство по эксплуатации

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OPERATION
MANUAL
Product: Document #: Rev: Page:
MODEL 8000 GYRO 90141 3 9 of 11
Section 1: SYSTEM OVERVIEW
1.5 Brake
The brake mechanism consists of two hydraulic cylinders which are mounted on the brake saddle beam
and attach to a crank arm on the gyro gimbal shaft. The hydraulic cylinders are plumbed to a manifold /
valve assembly so when the gyro rotates about the gimbal axis, oil from one side of each cylinder is
pushed through the high response flow control valve into the same side of the other cylinder. The gyro
controller modulates how fast the oil can flow through the control valve thus controlling the precession
rate of the gyro.
The brake hydraulic circuit is a pre ‐ charged closed loop – that is, there is no pump, motor or reservoir in
the circuit. Accumulators are installed in the circuit so the precharge pressure does not increase as the
fluid temperature rises due to the braking action. Locking solenoids are installed in the circuit to lock
the gyro so it cannot precess if there is a leak in the circuit or a mechanical problem with the gyro.
FIGURE 8 – BRAKE