An apparatus and method for filtering a liquid utilize a filter apparatus including a bypass filter, a full flow filter, and a flow balancing element for dividing a total inlet flow of fluid to the filter apparatus into a bypass portion, passing through the bypass filter, and a full flow portion, passing through the full flow filter. The bypass filter has a lower filtering efficiency than the full flow filter element, so that a venturi tube is not required for causing the bypass portion to pass through the bypass filter. The flow balancing element divides the flow into a desired bypass portion and a desired full flow portion, at a predetermined operating temperature. Below the operating temperature, the bypass portion increases and the full flow portion decreases, the bypass portion becoming greater than the full flow portion at a second predetermined temperature below the operating temperature.

An assembly is provided for a turbine engine. This turbine engine assembly includes a turbine engine component and a lubrication system. The lubrication system directs lubricant through the turbine engine component. The lubrication system includes a wash flow filter.

An assembly is provided for a turbine engine. This turbine engine assembly includes a turbine engine component and a lubrication system. The lubrication system directs lubricant through the turbine engine component. The lubrication system includes a wash flow filter.

The present disclosure relates to a filter cartridge and a filter. The filter cartridge includes: a filter cartridge housing portion, the filter cartridge housing portion being provided with a water inlet; and a filtration unit, the filtration unit being provided in the filter cartridge housing portion. The filtration unit is provided with a front filtration medium and a rear filtration medium. The filtration unit is configured to cause raw water flowing into the filter cartridge housing portion by means of the water inlet to be filtered by the front filtration medium to obtain a first filtered fluid, and the first filtered fluid selectively flows toward a first water outlet, and/or flows toward a second water outlet after being filtered by the rear filtration medium. The filter includes the above filter cartridge. The filter cartridge and the filter according to the present disclosure can filter raw water to different levels as desired, and have a simple structure and a compact arrangement, thereby reducing the space occupied by the filter.

A filter cartridge for operatively engaging a spool valve manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element.

A backflow-preventing filter module includes a filter unit and a backflow-prevention valve. The filter unit includes a filter cartridge that has a connector formed with an annular groove, and a filter shell that defines an accommodating space and that includes a connecting head. The connecting head has an inner surrounding wall defining an annular slot. The backflow-prevention valve is sleeved on the connector, and has a fixing portion disposed in the annular groove and an abutting portion moveable between an open position, where a distal end of the abutting portion is pushed by water to be away from the inner surrounding wall so that the annular slot is not blocked, and a closed position, where the abutting portion is expanded to abut the distal end thereof against the inner surrounding wall, thereby blocking the annular slot.

A filter cartridge for operatively engaging a spool valve manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element.

A filter cartridge for operatively engaging a manifold having an ejection cam and an insertion cam. The filter cartridge includes a filter element and inlet/outlet portion in fluid communication with the filter element.

The application relates to a valve arrangement for a filtration system. A valve assembly includes a valve body. The valve body includes a first central wall defining a first valve opening, a first fluid passageway, and a valve central opening, and a valve wall defining a second valve opening and a second fluid passageway. The valve assembly includes a first valve member disposed at the first valve opening. The first valve member is selectively repositionable between a first valve member first position, where the first valve member engages the first central wall such that the first valve member forms a first seal that substantially prevents a fluid from flowing through the one or more first fluid passageways, and a first valve member second position, where the first valve member disengages the first central wall such that the fluid is permitted to flow through the one or more first fluid passageways.

A backflow-preventing filter module includes a filter unit and a backflow-prevention valve. The filter unit includes a filter cartridge that has a connector formed with an annular groove, and a filter shell that defines an accommodating space and that includes a connecting head. The connecting head has an inner surrounding wall defining an annular slot. The backflow-prevention valve is sleeved on the connector, and has a fixing portion disposed in the annular groove and an abutting portion moveable between an open position, where a distal end of the abutting portion is pushed by water to be away from the inner surrounding wall so that the annular slot is not blocked, and a closed position, where the abutting portion is expanded to abut the distal end thereof against the inner surrounding wall, thereby blocking the annular slot.