Abstract: A hybrid hydraulic power transmission system for all terrestrial's vehicles comprises a prime mover and an accumulator which could also be used as the main load bearing full or partial frame for all those vehicles. A hydraulic power integrator is operatively connected to the prime mover and the accumulator and selectively able to draw power for the vehicle from the prime mover, the accumulator, or a combination thereof.

Abstract: A hydraulic lift system for artificial lift pumping or industrial hoisting comprises a three chamber cylinder, a gas over oil accumulator, a large structural gas accumulator and a large flow pilot operated check valve. A matrix variable frequency drive, a standard variable frequency drive, an electrical squirrel cage motor or a natural gas engines are part of the main prime mover alternatives.

Abstract: A hybrid hydraulic power transmission system for all terrestrial's vehicles comprises a prime mover and an accumulator which could also be used as the main load bearing full or partial frame for all those vehicles. A hydraulic power integrator is operatively connected to the prime mover and the accumulator and selectively able to draw power for the vehicle from the prime mover, the accumulator, or a combination thereof.

Abstract: A hybrid hydraulic power transmission system for all terrestrial's vehicles comprises a prime mover and an accumulator which could also be used as the main load bearing full or partial frame for all those vehicles. A hydraulic power integrator is operatively connected to the prime mover and the accumulator and selectively able to draw power for the vehicle from the prime mover, the accumulator, or a combination thereof.

Abstract: A hybrid hydraulic power transmission system for all terrestrial's vehicles comprises a prime mover and an accumulator which could also be used as the main load bearing full or partial frame for all those vehicles. A hydraulic power integrator is operatively connected to the prime mover and the accumulator and selectively able to draw power for the vehicle from the prime mover, the accumulator, or a combination thereof.

Abstract: A new hybrid hydraulic drive system for all types of terrestrial vehicles, including vehicles running on rails, using as prime mover any of the ICE (internal combustion engine) available or turbine, battery propulsion, electric motors, fuel cells, etc. One special variable hydraulic pump connected to the prime mover acts as a “power integrator”, receiving hydraulic power from the accumulator and mechanical power from the prime mover, to supply the desired flow and pressure to the hydraulic motors during operation. A second variable pump, reloads the accumulator with the remnant power available, if any, during the whole cycle. The accumulator is quite large and it is also used as the chassis for all terrestrial vehicles. The braking energy is returned to the accumulator. The whole vehicle is controlled by electronics, and in one embodiment, using only one joystick or pedal to control speed, direction, acceleration, braking and in some cases including steering.

Abstract: The drive system comprises an annular member carrying first engagement means which couple to second engagement means carried by drive motor means. The drive motor means are effective to rotate the annular member about an axis of rotation. Specific features of the invention include the use of hydraulic drive motor means operated through the use of a hydraulic system. The drive system also includes a pair of annular members which cooperate with respect to each other in combination with drive motor means disposed adjacent to each of the annular members. A plurality of drive motors may be used in some of the particular combinations and a single drive motor having a central pinion means and a satellite group of gears may also be used in conjunction with the drive motor means.