A fluid delivery apparatus includes controller hardware, a diaphragm pump, a positive displacement pump, and a fluid conduit extending between the diaphragm pump and the positive displacement pump. During operation, and delivering fluid to a downstream recipient, the controller hardware draws fluid into a chamber of the diaphragm pump from a fluid source container. The controller hardware applies pressure to the chamber of the diaphragm pump to output the fluid in the chamber of the diaphragm pump downstream through the fluid conduit to the positive displacement pump. During application of the pressure to the chamber and outputting the fluid in the chamber of the diaphragm pump downstream, the controller hardware activates the positive displacement pump to pump the fluid from the positive displacement pump to the downstream recipient.

A system for generating hydrokinetic power from a subcritical channel is disclosed. The system comprises a power channel diverted from the subcritical channel for generating hydrokinetic power by changing one more flow parameters of water, wherein the power channel includes an intake section, one or more slope section, one or more power section and a recovery section, an intake spillway at the intake section of power channel, connecting the subcritical channel with the power channel for enhancing the velocity of water, wherein the intake spillway is designed based on rate of discharge of water to be drawn from the subcritical channel and an array of turbines located in the power channel for generating power using the diverted water from the subcritical channel, wherein the number of turbines are based on the length of the power channel.

The present invention relates to a jet structure of a fan rotor, which comprises a fan wheel and at least one connecting channel. The fan wheel has a hub and plural blades disposed on the circumferential side of the hub. The hub has a top portion and a sidewall. Each of the blades has an upper surface and a lower surface which form a high-pressure zone and a low-pressure zone, respectively. The connecting channel is provided with at least one first inlet disposed in the high-pressure zone and at least one first outlet disposed in the low-pressure zone. The first inlet and the first outlet are a first end and a second end of the connecting channel, respectively. By means of the design of the present invention, the effect of noise reduction can be achieved.

The present invention relates to a jet structure of a fan rotor, which comprises a fan wheel and at least one connecting channel. The fan wheel has a hub and plural blades disposed on the circumferential side of the hub. The hub has a top portion and a sidewall. Each of the blades has an upper surface and a lower surface which form a high-pressure zone and a low-pressure zone, respectively. The connecting channel is provided with at least one first inlet disposed in the high-pressure zone and at least one first outlet disposed in the low-pressure zone. The first inlet and the first outlet are a first end and a second end of the connecting channel, respectively. By means of the design of the present invention, the effect of noise reduction can be achieved.

A system includes a water turbine, a plurality of positioning winches coupled to the water turbine and a plurality of positioning cables. An individual positioning cable extends between a fixed point at a first end and the water turbine at a second end and is coupled to a corresponding positioning winch that is configured to extend and retract the individual positioning cable between the fixed point and the water turbine. A plurality of sensors is configured to sense water conditions around the water turbine. A position control system is connected to the plurality of positioning winches and connected to the plurality of sensors. The position control system is configured to position the water turbine using the plurality of positioning winches according to the water conditions sensed by the plurality of sensors.

A scroll compressor includes a crank shaft 6, an orbiting scroll 32, and a second plug part 329. The crank shaft 6 has a lubricant channel 63 which allows lubricant 9 to flow therethrough. The orbiting scroll 32 is attached to the crank shaft 6 and has a second inner channel 327 that allows the lubricant supplied thereto through the crank shaft 6 to outwardly flow therethrough. The second plug part 329 serving as an adjustment part is provided in the second inner channel 327 of the orbiting scroll 32 and adjusts a flow amount of the lubricant 9 flowing through the second inner channel 327.

A fluid gear pump gear arranged to rotate about a first axis includes a concentrically disposed first hub portion and a plurality of first teeth radially projecting and circumferentially spaced about the first hub portion, the first hub portion and the first teeth being formed of a ceramic material. The gear also includes a first shaft on which the first hub portion is carried.

A fluidic oscillator device, in particular for a or in a flow control system for an aircraft or spacecraft, has a first and a second fluidic actuator, wherein each of the actuators has an inlet for supplying pressure and a first and a second outlet, from which an actuator flow can be discharged. The device further has a fluidic control for controlling an oscillating discharge of the actuator flow from the first and second outlet of the actuators, wherein the control has a connection portion which is arranged between the first actuator and the second actuator.

A fluid delivery apparatus includes controller hardware, a diaphragm pump, a positive displacement pump, and a fluid conduit extending between the diaphragm pump and the positive displacement pump. During operation, and delivering fluid to a downstream recipient, the controller hardware draws fluid into a chamber of the diaphragm pump from a fluid source container. The controller hardware applies pressure to the chamber of the diaphragm pump to output the fluid in the chamber of the diaphragm pump downstream through the fluid conduit to the positive displacement pump. During application of the pressure to the chamber and outputting the fluid in the chamber of the diaphragm pump downstream, the controller hardware activates the positive displacement pump to pump the fluid from the positive displacement pump to the downstream recipient.

A system includes a water turbine, a plurality of positioning winches coupled to the water turbine and a plurality of positioning cables. An individual positioning cable extends between a fixed point at a first end and the water turbine at a second end and is coupled to a corresponding positioning winch that is configured to extend and retract the individual positioning cable between the fixed point and the water turbine. A plurality of sensors is configured to sense water conditions around the water turbine. A position control system is connected to the plurality of positioning winches and connected to the plurality of sensors. The position control system is configured to position the water turbine using the plurality of positioning winches according to the water conditions sensed by the plurality of sensors.