ACTUATION SYSTEM FOR A MOTOR

ENERGY CONVERSION SYSTEM BASED ON PHASE CHANGE AND GRAVITATIONAL PRESSURE WAVE GENERATION AND CONVERSION

Apparatus for generating energy

RESCUE SYSTEM FROM HIGH RISE APARTMENTS WITH AUTOMATIC HYDRO MECHANIC CONTROL AND WITHOUT ELECTRICITY

Rotational mechanical transformer apparatus and methods

Piston Type Expander

Fluid working machine and method of operating a fluid working machine

Drain for dynamic sealing assembly

Regenerative brake system and hydraulic pump/motor for use therein

Hydraulic motor

Hydraulic piston engine