A method for managing the offtake of power produced by an auxiliary power unit of an aircraft. The method comprises a step of calculating a maximum capacity for offtake of mechanical power that the auxiliary power unit can provide to the aircraft, a step of determining an actual offtake of mechanical power taken off by a first mechanical power offtake system of the auxiliary power unit, a step of comparing the maximum capacity for offtake of mechanical power and the actual offtake of mechanical power, a step of optimizing the offtake of mechanical power which step, based on the comparison of the maximum capacity for offtake of mechanical power and the actual offtake of mechanical power, determines at least one corrective action. A device for managing the offtake of power produced by an auxiliary power unit of an aircraft and an aircraft including such a device are provided.

A method for managing the offtake of power produced by an auxiliary power unit of an aircraft. The method comprises a step of calculating a maximum capacity for offtake of mechanical power that the auxiliary power unit can provide to the aircraft, a step of determining an actual offtake of mechanical power taken off by a first mechanical power offtake system of the auxiliary power unit, a step of comparing the maximum capacity for offtake of mechanical power and the actual offtake of mechanical power, a step of optimizing the offtake of mechanical power which step, based on the comparison of the maximum capacity for offtake of mechanical power and the actual offtake of mechanical power, determines at least one corrective action. A device for managing the offtake of power produced by an auxiliary power unit of an aircraft and an aircraft including such a device are provided.

A turbine, wherein a propeller is mounted to said turbine, rotatable around a propeller axis, wherein a multi piston pump is provided, said multi piston pump being drivable by said propeller for pressurizing a pumping fluid, wherein the multi piston pump comprises a central part and a drive ring extending around the central part, wherein the central part comprises a series of piston-cylinder assemblies which are each compressible and extendible in a respective radial direction with respect to a common central axis, wherein each of the piston-cylinder assemblies is directly or indirectly engageable by the drive ring for radial compression thereof, in particular for pressurizing said pumping fluid, wherein at least one of the piston-cylinder assemblies is provided with a hydraulic and/or pneumatic biasing means for biasing, at least selectively biasing, at least part of that piston-cylinder assembly towards engagement with the drive ring, in particular substantially independent of and/or complementary to a biasing by a pressure of pumping fluid at that piston-cylinder assembly.

A turbine, wherein a propeller is mounted to said turbine, rotatable around a propeller axis, wherein a multi piston pump is provided, said multi piston pump being drivable by said propeller for pressurizing a pumping fluid, wherein the multi piston pump comprises a central part and a drive ring extending around the central part, wherein the central part comprises a series of piston-cylinder assemblies which are each compressible and extendible in a respective radial direction with respect to a common central axis, wherein each of the piston-cylinder assemblies is directly or indirectly engageable by the drive ring for radial compression thereof, in particular for pressurizing said pumping fluid, wherein at least one of the piston-cylinder assemblies is provided with a hydraulic and/or pneumatic biasing means for biasing, at least selectively biasing, at least part of that piston-cylinder assembly towards engagement with the drive ring, in particular substantially independent of and/or complementary to a biasing by a pressure of pumping fluid at that piston-cylinder assembly.

A material (such as potassium hydroxide or ammonia) capable of reacting with ambient carbon dioxide to produce fertilizer is placed in the path of ambient air movement. Desirably the material is associated with a fabric which in turn is associated with a vane of a vertical axis wind turbine, the turbine performing useful work as well as supporting the material which produces a fertilizer. A misting system controlled by a controller may automatically apply a water mist to the material if the humidity is below a predetermined level. The fabric with produced nitrogen and/or potassium fertilizer may be placed directly into contact with soil, or shredded first, or burned to produce energy and an ash (and the ash applied to the soil). The wind turbine may have a convenient, versatile mounting system with three adjustable legs supporting a central component, and the spokes of the wind turbine may be slotted for easy assembly with vanes.

A material (such as potassium hydroxide or ammonia) capable of reacting with ambient carbon dioxide to produce fertilizer is placed in the path of ambient air movement. Desirably the material is associated with a fabric which in turn is associated with a vane of a vertical axis wind turbine, the turbine performing useful work as well as supporting the material which produces a fertilizer. A misting system controlled by a controller may automatically apply a water mist to the material if the humidity is below a predetermined level. The fabric with produced nitrogen and/or potassium fertilizer may be placed directly into contact with soil, or shredded first, or burned to produce energy and an ash (and the ash applied to the soil). The wind turbine may have a convenient, versatile mounting system with three adjustable legs supporting a central component, and the spokes of the wind turbine may be slotted for easy assembly with vanes.

A wind farm offshore communication system of a gas producing offshore wind farm, wherein the offshore wind farm includes a pipe to transfer gas produced at the offshore wind farm. The offshore communication system includes a communication unit configured to transmit and/or receive an electrical communication signal; and a coupling device coupled to the communication unit. The coupling device is configured to receive the electrical communication signal from the communication unit and to couple a corresponding electromagnetic wave into the pipe. A frequency of the electromagnetic wave is configured to allow the electromagnetic wave to propagate within the pipe. The coupling device may be configured to intercept an electromagnetic wave propagating within the pipe and to provide a corresponding electrical communication signal to the communication unit.

A wind farm offshore communication system of a gas producing offshore wind farm, wherein the offshore wind farm includes a pipe to transfer gas produced at the offshore wind farm. The offshore communication system includes a communication unit configured to transmit and/or receive an electrical communication signal; and a coupling device coupled to the communication unit. The coupling device is configured to receive the electrical communication signal from the communication unit and to couple a corresponding electromagnetic wave into the pipe. A frequency of the electromagnetic wave is configured to allow the electromagnetic wave to propagate within the pipe. The coupling device may be configured to intercept an electromagnetic wave propagating within the pipe and to provide a corresponding electrical communication signal to the communication unit.

A hydraulic pump is disclosed, which includes an input crank shaft configured to be interfaced with a shaft of a power generating device, one or more connecting rings coupled to the input crank shaft with an eccentric interface such that when the input crank shaft is rotating causes the connecting ring to rotate with an eccentricity, a fixed annular frame, and a plurality of hydraulic actuators annularly disposed between the one or more connecting rings and the fixed annular frame, each hydraulic actuator of the plurality of hydraulic actuators having a piston disposed within a cylinder and each further including a hydraulic input and a hydraulic output, the eccentricity between the connecting ring and the input crank shaft causes the plurality of hydraulic actuators to i) pump hydraulic fluid out of the hydraulic output, or ii) cause suction of hydraulic fluid from the hydraulic input.

A hydraulic pump is disclosed, which includes an input crank shaft configured to be interfaced with a shaft of a power generating device, one or more connecting rings coupled to the input crank shaft with an eccentric interface such that when the input crank shaft is rotating causes the connecting ring to rotate with an eccentricity, a fixed annular frame, and a plurality of hydraulic actuators annularly disposed between the one or more connecting rings and the fixed annular frame, each hydraulic actuator of the plurality of hydraulic actuators having a piston disposed within a cylinder and each further including a hydraulic input and a hydraulic output, the eccentricity between the connecting ring and the input crank shaft causes the plurality of hydraulic actuators to i) pump hydraulic fluid out of the hydraulic output, or ii) cause suction of hydraulic fluid from the hydraulic input.