A system for producing compressed air from ocean waves, including a base for anchoring the system on an ocean floor, two or more columns extending perpendicularly upward from the base to above a surface of the ocean, a platform at an upper end of the columns, one or more air pumps located on the platform, a hammer head coupled to the air pumps for producing compressed air by raising and lowering the hammer head in a predefined motion range, a float that floats on the surface of the ocean and is confined by the two or more columns, the base and the platform, one or more elongated shafts coupled to the float at one end and to the hammer head at another end; wherein the hammer head is adapted to be raised and lowered by the float in the predefined motion range by the motion of the ocean waves.

A non-linear power equation may be solved in linear form by locking one or more variables and iteratively solving to accurately and quickly estimate optimized power solutions for hydroelectric power stations. Additionally, these iterative calculations may provide for long term water resource planning and more accurate estimation models. Further, such optimized power solutions may be usable to create accurate and timely water management models for the operation and planning of hydroelectric power stations.

A wave driven variable leverage pump for water desalination is disclosed. According to one embodiment, a variable leverage pump comprises a platform and a paddle comprising at least one lever arm extending therefrom. The at least one lever arm is pivotally coupled with the platform. The pump further comprises a pump having a first end pivotally coupled with the platform, and a second end pivotally coupled with the paddle. A pivot point of the at least one lever arm is located above a pivot point of the pump relative to the platform.

A pressurized fluid supply apparatus and method of supplying pressurized fluid is provided. The pressurized fluid supply apparatus includes a housing configured to rotate about an axis, at least one fluid pump coupled to the housing and configured to pressurize a fluid therein, and at least one movable element disposed within the housing. The at least one movable element is configured to move within the housing when the housing rotates about the axis, which causes the at least one movable element to be in periodic driving engagement with the at least one fluid pump to cause the fluid to be pressurized.

A cryocooler is described that can include a pressure wave generator, and a refrigeration device (for example, a cold-head), which can be used to liquefy a gas when the gas is exposed to a surface of the refrigeration device. The pressure wave generator can include one or more motors. Each motor can include a stator, and at least one electrical coil wound around a portion of the stator. The electrical coil can generate a reversing magnetic field when alternating electric current is passed through the electrical coil. The motor can further include a pressurized container that can be placed within the space enclosed by the stator, and a piston that can be placed inside the pressurized container. The stators can be placed external to the pressurized container. The piston is made by combining magnets that have opposite and transverse polarities, and are combined adjacently on a common reciprocating axis.

A wave driven variable leverage pump for water desalination is disclosed. According to one embodiment, a variable leverage pump comprises a platform and a paddle comprising at least one lever arm extending therefrom. The at least one lever arm is pivotally coupled with the platform. The pump further comprises a pump having a first end pivotally coupled with the platform, and a second end pivotally coupled with the paddle. A pivot point of the at least one lever arm is located above a pivot point of the pump relative to the platform.

An energy concentration device includes a pneumatic cylinder that allows for contact with waving sea water of the nature to make a float device to drive a piston rod to achieve an effect of up and down piston movement so as to realize an effect of pressurization of air inside the pneumatic cylinder, whereby the air may achieve an effect of increase of pressurization level through multi-staged pressurization and an effect of accumulation by being stored in a high-pressure air storage device for the purposes of electrical power generation with the pressurized air and supplying pneumatic power required by other applications, such as automobiles, motorcycles, buses, and factories and also for supplying of pneumatic power to household devices, such as household appliances and pneumatically-operating doors.

A system and method for moving water up a water column to achieve a sufficient pressure to overcome a reverse osmosis filter. The system includes a rigid outer column for receiving and holding water, with an inner, deformable hose located inside the rigid outer column. The hose has a one-way valve at a distal end of the hose to allow water to enter the hose and an outlet at the proximal end of the hose to allow water to exit the hose. A water-raising device to raise the water within the inner, deformable hose includes a roller to selectively clamp the hose, and a buoyancy support attached to the roller. The buoyancy support is selectively inflated and deflated to move the clamp (and water inside the deformable hose) within the rigid outer column.

A wave driven variable leverage pump for water desalination is disclosed. According to one embodiment, a variable leverage pump comprises a platform and a paddle comprising at least one lever arm extending therefrom. The at least one lever arm is pivotally coupled with the platform. The pump further comprises a pump having a first end pivotally coupled with the platform, and a second end pivotally coupled with the paddle. A pivot point of the at least one lever arm is located above a pivot point of the pump relative to the platform.