A pump operated lid that pushes liquid through the lid. The pump operated lid includes an enclosure having an interior volume and an outer perimeter, wherein the outer perimeter is designed to removably secure to a cup. An air pump is within the interior volume along with a power source and a control circuit, each operably connected to the air pump. A switch is on the enclosure and operably connected to the air pump, such that the switch is designed to activate the air pump. One or more valves are on the upper surface and designed to allow air into the interior volume, and close when the air pump is activated. An aperture is on the upper surface and extends through the enclosure and is designed to receive a straw therethrough.

There is provided a compressor including: a piston that reciprocates inside a cylinder; a valve plate that closes an end portion of the cylinder; a connecting rod that supports the piston; a crankshaft that applies a rotating force to an end portion of the connecting rod; and a crankcase that rotatably supports the crankshaft. The piston is an oscillating piston that reciprocates while oscillating inside the cylinder according to rotation of the crankshaft. An outer peripheral surface of the piston is a curved surface.

A solar-powered aeration device for sludge turnover and planting includes a grow bed fixed on a floating body and floats on water. A bottom of the floating body is fixedly connected with an inner pipe; an outer pipe is sleeved outside the inner pipe. The outer pipe is nested in an air chamber; a bottom of the air chamber communicates and is fixedly connected with a water inlet pipe; the water inlet pipe laterally communicates with a suction tube. An aeration ring is fixedly arranged at a bottom of the outer pipe, and the aeration tube has an air outlet pipe in communication with the outside. A movable foot is rotationally provided at a tail end of the suction tube, and the movable foot adapts to surface fluctuations to swing in a range limited by an angle limiter.

A solar-powered aeration device for sludge turnover and planting includes a grow bed fixed on a floating body and floats on water. A bottom of the floating body is fixedly connected with an inner pipe; an outer pipe is sleeved outside the inner pipe. The outer pipe is nested in an air chamber; a bottom of the air chamber communicates and is fixedly connected with a water inlet pipe; the water inlet pipe laterally communicates with a suction tube. An aeration ring is fixedly arranged at a bottom of the outer pipe, and the aeration tube has an air outlet pipe in communication with the outside. A movable foot is rotationally provided at a tail end of the suction tube, and the movable foot adapts to surface fluctuations to swing in a range limited by an angle limiter.

The present disclosure provides a dual-pump outflowing liquid container, comprising an outer tube, an inner tube and a pump core mechanism, wherein the pump core mechanism includes a pump core mounting seat, the first vacuum pump, the second vacuum pump and a pressing head, the embedding connector is connected to the inner tube embedding mounting hole in a sealing manner, the pump core mounting seat is detachably connected to the top end of the outer tube, the first pump core mounting hole corresponds to the first pump core intercommunication hole, the second pump core mounting hole corresponds to the second pump core intercommunication hole, the pressing head is slidably connected to the pump core mounting seat, a passage inlet of the first outflowing liquid passage is abutting with a pump outlet of the first vacuum pump in a sealing manner.

The present disclosure provides a dual-pump outflowing liquid container, comprising an outer tube, an inner tube and a pump core mechanism, wherein the pump core mechanism includes a pump core mounting seat, the first vacuum pump, the second vacuum pump and a pressing head, the embedding connector is connected to the inner tube embedding mounting hole in a sealing manner, the pump core mounting seat is detachably connected to the top end of the outer tube, the first pump core mounting hole corresponds to the first pump core intercommunication hole, the second pump core mounting hole corresponds to the second pump core intercommunication hole, the pressing head is slidably connected to the pump core mounting seat, a passage inlet of the first outflowing liquid passage is abutting with a pump outlet of the first vacuum pump in a sealing manner.

The present invention provides a brake hydraulic pressure controller capable of suppressing retention of air bubbles on a release side of a pump.

The brake hydraulic pressure controller includes: a housing; a motor attached to the housing; and plural pump elements, each of which is attached to a recess formed on a side surface of the housing and driven by a motor. Each of the pump elements includes: a suction valve suctioning a brake fluid into a pump chamber; a release valve releasing the brake fluid from the pump chamber; and a channel forming member arranged on a release side of the release valve. The channel forming member includes: a spring chamber accommodating a spring for urging a valve body of the release valve in a closing direction; and a passage communicating between the spring chamber and an outer surface of the channel forming member. The passage in the channel forming member of each of the plural pump elements extends upward from a position including a top portion of the spring chamber in a vertical direction and is connected to the outer surface.

The present invention provides a brake hydraulic pressure controller capable of suppressing retention of air bubbles on a release side of a pump.

The brake hydraulic pressure controller includes: a housing; a motor attached to the housing; and plural pump elements, each of which is attached to a recess formed on a side surface of the housing and driven by a motor. Each of the pump elements includes: a suction valve suctioning a brake fluid into a pump chamber; a release valve releasing the brake fluid from the pump chamber; and a channel forming member arranged on a release side of the release valve. The channel forming member includes: a spring chamber accommodating a spring for urging a valve body of the release valve in a closing direction; and a passage communicating between the spring chamber and an outer surface of the channel forming member. The passage in the channel forming member of each of the plural pump elements extends upward from a position including a top portion of the spring chamber in a vertical direction and is connected to the outer surface.

A device (1, 100) for controlling a flow of a gaseous fluid is disclosed. The device comprises a first electrode (10, 110) and a second electrode (20, 120) offset from the first electrode in a downstream direction of the flow. The electrodes are connectable to a voltage source. A thermally conducting flange (30) is arranged to extend in a plane parallel to a direction of the flow and adapted to dissipate heat from the gaseous fluid. At least a portion of the first electrode has a maximum height (h.sub.1) in a direction parallel to a direction of the flow and a maximum width (w.sub.1) in a direction orthogonal to the direction of the flow, wherein said maximum height is larger than said maximum width so as to improve the pumping efficiency of the device. A method for manufacturing the device, and a method for controlling a fluid flow by means of such device, is also disclosed.

A device (1, 100) for controlling a flow of a gaseous fluid is disclosed. The device comprises a first electrode (10, 110) and a second electrode (20, 120) offset from the first electrode in a downstream direction of the flow. The electrodes are connectable to a voltage source. A thermally conducting flange (30) is arranged to extend in a plane parallel to a direction of the flow and adapted to dissipate heat from the gaseous fluid. At least a portion of the first electrode has a maximum height (h.sub.1) in a direction parallel to a direction of the flow and a maximum width (w.sub.1) in a direction orthogonal to the direction of the flow, wherein said maximum height is larger than said maximum width so as to improve the pumping efficiency of the device. A method for manufacturing the device, and a method for controlling a fluid flow by means of such device, is also disclosed.