A fluid machine for a pneumatic or hydraulic drive system, said fluid machine being able to work as a fluid motor or as a fluid pump, comprising: at least two piston assemblies each comprising a piston means (110a-c), the at least two piston assemblies being operable to cause sequential reciprocating movement of the pistons means (110a-c); a drive member (120) rotatable about an axis and providing an annular, wave-like surface (122) extending at least partially radially to the axis, towards which the piston means (110a-c) project, wherein, in case of working as a fluid motor, the pistons means (110a-c) are arranged to drive rotation of the drive member (120) about the axis at least by a pushing action on said wave-like surface (122) or, in the case of working as a fluid pump, the piston means (110a-c) are arranged to cooperate with said wave-like surface (122) so that rotation of the drive member (120) drives sequential reciprocating motion of the piston means (110a-c).

A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. A controller controls the shift actuator utilizing an actuating pulse and an opposing pulse.

A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. A controller controls the shift actuator utilizing an actuating pulse and an opposing pulse.

The invention is referred to a new type gearing system where the gears are involved between them with an angled formation inclined dentures (1). The gears are found inside a housing (4) while from a hole (2) in their center a transmission axis (3) passes through them. Each housing (4) contains one or more inserting holes (5) and exerting holes (6), in result the air that enters the inserting hole to rotate each gear for the arc of the circle, until it exits from the corresponding exertion hole (6). The application of the new type gearing system can also be done in motors and in liquid and gas pumps, as it requires minimum maintenance and can be made in different sizes depending on each application.

The invention is referred to a new type gearing system where the gears are involved between them with an angled formation inclined dentures (1). The gears are found inside a housing (4) while from a hole (2) in their center a transmission axis (3) passes through them. Each housing (4) contains one or more inserting holes (5) and exerting holes (6), in result the air that enters the inserting hole to rotate each gear for the arc of the circle, until it exits from the corresponding exertion hole (6). The application of the new type gearing system can also be done in motors and in liquid and gas pumps, as it requires minimum maintenance and can be made in different sizes depending on each application.

A system suitable for extracting power directly from the main shafts of slow-moving mechanical systems. The system has a closed gas circuit having a lower-pressure (LP) side and a higher-pressure (HP) side. The LP side is at a pressure substantially greater than atmospheric pressure. The system includes primary compressors coupled to the wind turbines, thermal stores coupled to heat-exchangers on both the LP and HP sides of the closed gas circuit, a secondary motor-compressor set and an expander-generator set. The system allows some degree of independence between the input power resource and the output power. When substantial wind power is present and the demand for electrical power is weak, this system can export a fraction of the energy captured and store the rest. When the wind resource is low, the system can export more power than is being collected by drawing energy from the thermal stores.

A system suitable for extracting power directly from the main shafts of slow-moving mechanical systems. The system has a closed gas circuit having a lower-pressure (LP) side and a higher-pressure (HP) side. The LP side is at a pressure substantially greater than atmospheric pressure. The system includes primary compressors coupled to the wind turbines, thermal stores coupled to heat-exchangers on both the LP and HP sides of the closed gas circuit, a secondary motor-compressor set and an expander-generator set. The system allows some degree of independence between the input power resource and the output power. When substantial wind power is present and the demand for electrical power is weak, this system can export a fraction of the energy captured and store the rest. When the wind resource is low, the system can export more power than is being collected by drawing energy from the thermal stores.