A filter device, having a filter housing (2) in which an exchangeable filter element (14) is accommodated, is characterized in that the filter element (14) has a securing device (58) that can be inserted axially into a receiving device (20) of the filter housing (2), in that, after a rotational motion has been performed, snap means (70) are used to snap the securing device (58) to the receiving device (20) in a snap position.

A filter device having a filter housing (1), in which a replaceable filter element (7) is accommodated and which has a cover part (2), wherein the element material (9) of the filter element (7) extends between two end caps (13, 14) of the latter, is characterized in that the filter housing (1), which is formed as an outlet pipe (3), extends between both end caps (13, 14) as well.

A filter device with a filter housing (2, 6), in which a replaceable filter element (4) is accommodated and which has a cover part (2), wherein the element material (30) is delimited at the end by at least one end cap (32), is characterized in that at least this one end cap (32) of the filter element (4) is placed on a fluid channel (58) and in that a device (84) for transverse force support for the filter element (4) is provided between this one end cap (32) and the fluid channel (58), wherein said device (84) for transverse force support supports the filter element (4) in relation to the fluid channel (58) engaging in the interior of the filter element (4) at least partially at the end.

A filter device having a filter housing (14), consisting of a housing pot (12), which accommodates a replaceable filter element (16) and is closed by a removable lid part (32), wherein the element material (20) of the filter element (16) separates an unfiltrate chamber (22) from a filtrate chamber (18, 43), and having a measurement sensing device (108) for sensing pressure values from at least one of the chambers (18, 22, 43) is disclosed, which is characterized in that the measurement sensing device (108) is disposed on a lid inner side (45) of the lid part (32) and at least partially guided therein, projects into the filter housing (14) and in that at least parts of a measurement value evaluator (78) connected to the measurement sensing device (108) are disposed on the opposite lid outer side (42) facing the environment.

A head made of metal is provided covering an opening of a filter case, and a filtration member having a tubular shape is provided in an internal space formed by the filter case and the head. A plate made of metal is provided near the opening of the filter case, and an IC tag is provided between the filtration member and the plate. The head is provided with an antenna unit including an antenna section including an antenna configured to communicate with the IC tag. The antenna unit includes a case having a rod shape and at least partially inserted into the head, the antenna section is provided adjacent to a first end corresponding to one end of the case, the case is provided in the head such that the antenna section is exposed when the head is viewed from a side of the filter case, and the plate is provided with an aperture from which the IC tag is exposed.

Disclosed is a filtering system used in any pool filtrations, filtration of taps or building entrance hot and cold use water, filtration of city water before osmosis filtering devices, filtration of heating and cooling mechanical plant systems, and filtration of cooling water in hydro-electric power plants. The system provides for forming a vortex inside a filter by directing and increasing speed of filtered liquid and thus providing decreasing pressure on the filter surface and collection of filtered particulates in a particulate accumulation chamber. The system also provides for automatic cleaning of the filter by reverse flushing, without the need for dismantling, by differential pressure sensors based on rate of contamination.

A method for predicating a service life of a fuel filter includes causing a fuel pump of a fuel system to direct fuel through a fuel filter of a fuel system. The method also includes receiving work cycle data from machines that implement a same or similar fuel system. The method further includes receiving, via sensors of the fuel system, fuel system data and determining, from the fuel system data, a pressure difference across the fuel filter. The method further includes determining, based on the work cycle data, predicted load cycle data for the fuel system and determining, via a filter life model, a filter service interval representing an amount of time the fuel filter is operable in the fuel system prior to the pressure difference reaching a predetermined value.

A washing machine including a drainage pump to discharge water from a tub of the washing machine through a drainage passage, a first filter to which the water flows due to the drainage pump and provided along the drainage passage to filter out foreign matter equal to or greater than predetermined size, and a second filter to which the water flows from the first filter and provided along the drainage passage and to filter out foreign matter smaller than the predetermined size, wherein the drainage passage includes a first connecting hose to guide the water to flow from the tub to the first filter, a second connecting hose to guide the water to flow from the first filter to the second filter, and a drainage hose to guide the water to be discharged from the second filter to the outside of the washing machine.

A fuel filter monitoring method includes receiving pressure signals that are indicative of a pressure drop across at least one fuel filter of a fuel supply system configured to supply fuel to at least one fuel injector of an internal combustion engine and receiving a condition signal indicative of a condition of a fuel supply system, the condition signal being generated by one or more of a geographic location sensor, an altitude sensor, and/or a fuel temperature sensor. The method includes estimating a remaining life of at least one fuel filter of the fuel supply system based on the pressure signal and the condition signal and outputting a notification indicative of the estimated remaining life.

A filter for use in filtering a fluid slurry that includes particles of varying size, such as pool water including debris, is provided. The filter is in electrical communication with a sensor and includes a housing having an inlet to receive the fluid slurry, an outlet, and an internal chamber. An actuator can be coupled to the filter media to move at least a portion of the filter media to vary a dimension of the pores. The filter also includes a controller connected to the actuator that is capable of receiving a signal from the sensor and controls the actuator to change the dimension of the pores based on the signal.