A liquid filtration system according to the present invention comprises a bioreactor; a filter configured to filter liquid passing therethrough; a perfusion pump configured to move liquid between the bioreactor and the filter; a liquid line providing fluidic communication between the bioreactor, perfusion pump and filter; and a bleed outlet provided on the liquid line, the bleed outlet configured to provide means to remove liquid selectively from the system under the action of the perfusion pump. With the liquid filtration system according to the present invention, both the filtering and bleed functions may be performed under the action of a single pump, thereby significantly reducing the complexity and cost of the components required.

A supercritical fluid power generation system includes an automatic filter cleaning apparatus, which is used in an automatic filter cleaning method. The system includes a cooler configured to cause a phase change of a working fluid from a gaseous state to a liquid state or to cool the working fluid to a low temperature; a fluid pump configured to receive and compress the working fluid from the cooler; a heat exchanger configured to heat the working fluid via a heat exchange with the working fluid which has passed through the fluid pump; at least one turbine configured to expand the heated working fluid and connected to a generator to produce electric power; a plurality of transport pipes in which the working fluid flows; and plural filter lines configured to remove, via back-flushing, a foreign substance included in the working fluid present in at least one of the transport pipes.

Fluid filtration systems and methods for servicing thereof are disclosed. The fluid filtration system includes a filter cartridge, a fluid transfer pump, and a valve assembly that can be selectively operated and positioned to achieve a normal filtration mode of operation, a fuel drain mode of operation, and a water drain mode of operation. In the normal mode, the filter cartridge is in an installed position, the pump is rotated in a first direction, and the valve is placed in a first position. In the fuel drain mode, the filter cartridge is in a service position, the pump is rotated in a second direction, and the valve is placed in a second position. In the water drain mode, the filter cartridge is in an installed position, the pump is rotated in the second direction, and the valve is placed in the first position.

A waterway plate assembly (100) for a water purifier and a water purifier having the same are provided. The waterway plate assembly (100) includes a waterway plate main body (10). The waterway plate main body (10) has a first end and a second end along a length direction of the waterway plate main body (10). The first end is provided with a filter cartridge interface (111) and the second end is provided with an electric element interface (112). With the waterway plate assembly (100) for the water purifier according to embodiments of the present disclosure, a separation of water and electricity is realized, and a short-circuited risk for the electric element during the replacement of the filter cartridge or a leakage of the filter cartridge interface is reduced.

A filtration system with a filter out of which filtered medium exits are provided. The system includes a control panel that receives pressure and flow rate information of the medium and uses the pressure information to send a first signal to prevent a pressure differential of the medium from exceeding a first set point yet maintain filtration of the medium. The control panel uses the flow rate information to send a second signal to prevent the flow rate of the medium from exceeding a second set point yet maintain filtration of the medium. An actuated flow control valve is present that opens at different amounts, and the medium flows through the actuated flow control valve.

A fluid filtration system comprising a cross-flow filter is arranged to permit a first pump to recirculate part of the retentate of the filter to the inlet of the cross-flow filter and a second pump to return part of the permeate to the inlet of the cross-flow filter. A third pump is configured supply source fluid to the inlet of the filter. The flow path between the second pump and the cross-flow filter inlet may include an adsorption filter that may selectively remove contaminants, toxins, or pathogens in the permeate. A controller may control the first, second and third pumps to provide predetermined flow ratios among the fluid flow paths of the system in order to achieve a desired filtration level. This system may be applicable to the removal of harmful substances from blood, by first separating the plasma from the blood and then removing harmful substances from the plasma.

An apparatus and method for filtering molten metal (M), such as aluminum or an aluminum alloy includes at least one ceramic foam filter or any other type of filtration media such as porous tube or alumina balls disposed in a receptacle (12) for the molten metal (M). A vibrator vibrates at least one of the filter, the receptacle (12) or the metal and may be used to induce priming, filtering and/or drainage of the filter. The vibrator may be retrofitted to an existing filter system and may be adjustable in frequency and amplitude. The vibration may be continuous over a given period or produced in a single shock.

An aftertreatment system comprises a housing defining an internal volume. A filter is disposed in the housing and configured to remove particulate matter included in the exhaust gas. A delta pressure sensor configured to measure an inlet apparent pressure value upstream of the filter. An ambient pressure sensor separate from the delta pressure sensor is configured to measure an ambient pressure value of an ambient environment in which the aftertreatment system is located. A controller is configured to receive the inlet apparent pressure value, receive the ambient pressure value from the ambient pressure sensor, determine a relative inlet exhaust pressure value based upon the inlet apparent pressure value and the ambient pressure value, and adjust an exhaust flow rate of the exhaust gas based at least on the relative inlet exhaust pressure value.

A treatment solution supply apparatus for supplying a treatment solution to a treatment solution discharge unit that discharges the treatment solution to a treatment body, includes: a temporary storage apparatus that temporarily stores the treatment solution supplied from a treatment solution supply source that stores the treatment solution; a filter that removes a foreign substance in the treatment solution from the temporary storage apparatus; and a pump that sends the treatment solution from which the foreign substance has been removed by the filter to the treatment solution discharge unit, wherein the temporary storage apparatus has a pressure-feeding function of pressure-feeding the treatment solution stored in the temporary storage apparatus.

A system (10) for moving a fluid (12) includes a flow-circuit element (30) and a control system (32) that monitors an operational condition of the flow-circuit element (30). The control system (32) includes a first sensor (82) that monitors a first sensed condition, and a second sensor (84) that monitors a second sensed condition that is different from the first sensed condition. Further, the control system (32) includes a processor (76) that analyzes the first sensed condition and the second sensed condition to monitor the operational condition of the flow-circuit element (30).