A device for protection of wastewater pumps for wet accumulation chambers has a separation chamber provided with a discharge pipe for discharging wastewater into a sewerage network. A supply pipe connected to the separation chamber supplies solid particles containing wastewater into the separation chamber. A reversing valve arranged between the supply pipe and the separation chamber prevents reverse flow of wastewater into the supply pipe. A bidirectional pipe connected to the separation chamber connects the separation chamber with a pump, where the bidirectional pipe serves to supply wastewater from the separation chamber into the pump positioned in the wet accumulation chamber and for reverse flow of wastewater from the pump into the separation chamber to a discharge pipe. A solid particles separator arranged between the separation chamber and the bidirectional pipe separates solid particles contained in wastewater in the separation chamber.

A system for cooling a circuit component on an electronic device includes a closed-loop cooling circuit and a coolant filling device. The closed-loop cooling circuit includes a coolant block, a first pump and a radiator. The coolant filling device includes a container, a base and a second pump disposed inside the base. The coolant filling device is configured for attachment to the cooling circuit. In some embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the cooling circuit circulates coolant. In further embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the electronic device remains powered on.

A surgical cleaning device and method of use having a housing, a drive shaft rotatably mounted, having a rear end and a front end, a brush head positioned at the front end and arranged outside the housing, to which a plurality of elastically deformable bristles are attached, a pump connected with the drive shaft for pumping a rinsing liquid, a gearbox that is connected with the front end of the drive shaft and with a rear end of the tube and which translates the rotational movement of the drive shaft into an oscillating linear movement of the tube and the brush head, wherein the tube is mounted movable in a linear manner; the brush head in the region of the elastically deformable bristles has at least one ejection opening, wherein the tube opens liquid-permeably through the at least one ejection opening in the direction of the elastically deformable bristles.

A surgical cleaning device and method of use having a housing, a drive shaft rotatably mounted, having a rear end and a front end, a brush head positioned at the front end and arranged outside the housing, to which a plurality of elastically deformable bristles are attached, a pump connected with the drive shaft for pumping a rinsing liquid, a gearbox that is connected with the front end of the drive shaft and with a rear end of the tube and which translates the rotational movement of the drive shaft into an oscillating linear movement of the tube and the brush head, wherein the tube is mounted movable in a linear manner; the brush head in the region of the elastically deformable bristles has at least one ejection opening, wherein the tube opens liquid-permeably through the at least one ejection opening in the direction of the elastically deformable bristles.

A well management system provides Internet-enabled monitoring, configuration, and control of a well system that may include a pump and a pressure tank. A controller is operatively coupled to the pump. The controller controls the pump based on pressure readings from a pressure sensor to maintain a configured pressure range within the system. The controller can communicate with a management system via a communications network. The management system is further in communication with one or more client devices, which may be associated with a homeowner, a service provider, a manufacturer, or the like. Via the management system, the client devices can receive information from the controller and send commands to the controller.

A mobile pump system for pumping water for extinguishing with an auxiliary agent, and a method therefor. The mobile pump system includes a frame for housing the pump system, a booster pump arranged in the frame, a metering pump arranged in the frame for the purpose of adding an auxiliary agent to a water flow, and a drive configured to drive the booster pump and the metering pump. The metering pump is provided with a displaceable metering pump frame and coupling means for connecting the metering pump to a container of the auxiliary agent.

A mobile pump system for pumping water for extinguishing with an auxiliary agent, and a method therefor. The mobile pump system includes a frame for housing the pump system, a booster pump arranged in the frame, a metering pump arranged in the frame for the purpose of adding an auxiliary agent to a water flow, and a drive configured to drive the booster pump and the metering pump. The metering pump is provided with a displaceable metering pump frame and coupling means for connecting the metering pump to a container of the auxiliary agent.

A refrigerant pump and a data center cooling system. The data center cooling system includes a refrigerant connected between a condenser and an evaporator. The refrigerant includes a housing, a partition plate, and a pump head. The housing is provided with a liquid inlet and a liquid outlet. The partition plate is disposed inside the housing, and they jointly form first space and second space. A pump body includes the pump head and a motor. An inlet of the pump head is located at the bottom of the first space in a gravity direction. The motor is located in the second space. The pump head is configured to transfer refrigerant in the first space to the second space. The liquid inlet is directly connected to the condenser by using a pipeline. The first space is configured to store refrigerant of the data center cooling system.

In a water pump, a water reservoir portion into which cooling water leaking from between a bearing portion and a rotating shaft flows via an introduction hole is divided into a first division portion and a second division portion by a gasket. The first division portion and the second division portion communicate with each other through a communication hole formed in the gasket. The second division portion includes a drain hole through which cooling water is discharged to outside.

1. A pump station for pumping a Flow Fl in pipes of a gravity feed network having a pumping system located in said dry well chamber, said pumping station having comprising controls, motors, pumps and assembly branched piping P.sub.B operably connected to one or more pumps, and with an inlet piping P.sub.2 operably connecting Flow F.sub.l from a gravity feed piping network, and with an output piping P.sub.3 operably connected to the output of the branched piping P.sub.B and/or the one or more pumps. Additional an output piping P.sub.3 operably connected to the output of said branched piping P.sub.B and/or said one or more pumps, and with a return piping P.sub.5 operably connected to said inlet piping P.sub.2 and/or output piping P.sub.9 of a sump pump.