A water filter system includes an upper chamber removably coupled with a lower chamber. In implementations the lower chamber has a sidewall and a rim wider than the sidewall. A filter medium filters water from the upper to the lower chamber. A seal couples between the chambers and has a circular cross-section and a gap receiving a portion of the sidewall. The seal may also have a cavity receiving the rim. The seal includes one or more arced flaps contacting the upper chamber, a tip of each arced flap defining a circular inner opening of the seal. The seal includes one or more first barbs contacting the upper chamber, each first barb forming a circle. The seal includes one or more second barbs contacting the lower chamber, each second barb forming a circle.

The present disclosure relates to a filter, which comprises a housing, a protective bushing, a magnetic bar and a filter screen. The protective bushing, the magnetic bar and the filter screen are disposed in the housing. The protective bushing comprises a cavity and a channel. The channel is disposed along the axial direction of the cavity. The advantageous effects of the filter according to the present disclosure lies in that: the magnetic bar inside the filter can adsorb metal impurities in the water in the channel; and the channel is in S shape which can increase the length of the flow path of the water so that the metal impurities in the water can be guaranteed to be sufficiently adsorbed by the magnetic bar; and the filter screen can filter out non-metal impurities in the water. An exhaust valve provided at the top of the protective bushing can keep the balance between the air pressure inside the filter and the air pressure outside the filter, which can ensure that the water can flow out and in smoothly. The filter is attached with an operating handle. If the user wants to disassemble the filter to clear up the metal impurities and non-metal impurities in the filter, he can disassemble the filter by means of the operating handle without the need of professional operator, which is convenient and simple.

A method of encoding video including: writing a plurality of predetermined buffer descriptions into a sequence parameter set of a coded video bitstream; writing a plurality of updating parameters into a slice header of the coded video bitstream for selecting and modifying one buffer description out of the plurality of buffer descriptions; and encoding a slice into the coded video bitstream using the slice header and the modified buffer description.

A fuel filter used with a supply of liquid fuel and with an engine has a housing formed with a filter chamber, with inlet and outlet ports respective connected to the supply and to the engine and opening into the chamber, and with a throughgoing return passage juxtaposed with the filter chamber and extending between a return-fuel inlet connected to the engine and a return-fuel outlet connected to the tank. A filter element is in the chamber between the inlet and outlet ports. Fuel moves in a circuit from the supply to the inlet port, thence through the filter element in the chamber, thence out the outlet port to the engine where a portion of the fuel is consumed and a portion of it is heated and flowed back to the return-fuel inlet, and thence through the passage and out the return-fuel outlet to the supply.

A filter element for filtering a fluid has a first filter medium arranged in annular shape and surrounding an interior. A second filter medium is provided, wherein the first filter medium and the second filter medium separate a clean side of the filter element from a raw side of the filter element. The first filter medium and the second filter medium are arranged such that a fluid to be filtered flows from the raw side of the filter element to the clean side of the filter element in parallel through the first filter medium and the second filter medium. The first filter medium is liquid-permeable and gas-impermeable and the second filter medium is liquid-impermeable and gas-permeable.

A fuel filter assembly includes a filter housing defining a cavity, a center stack having a base component and a top portion. The center stack is positioned within the cavity of the filter housing and attached to the housing, the center stack having an axial aperture in the top portion, the axial aperture having a circumferential surface, and a fuel filter. The fuel filter includes a filter base, an end cap having a top surface and a bottom surface opposite the top surface, an axial extension that extends from the bottom surface, and at least one prong attached to the axial extension, the at least one prong having an axial surface facing away from the top surface that axially locates the fuel filter in the housing against the circumferential surface, a filter element attached to the bottom surface of the end cap, and a pin attached to a filter base.

An outflow portion that causes a space inside a filter element to communicate with a space outside a filter case includes an upper surface and a bottom surface that are provided so as to be separated from each other. The back pressure valve includes the valve body having the substantially plate-like shape and the elastic member provided between the bottom surface and the valve body. The valve body is movable between a closed position in which the valve body is in contact with the upper surface, and an open position in which the valve body is not in contact with the upper surface. A recessed portion is provided in a surface, of the valve body, that comes into contact with the upper surface, and an outflow port is formed in a side surface or the upper surface of the outflow portion.

A cap for a filter system includes a housing, a turbine, at least one gear, and a valve. The housing defines an interior of the cap configured for receiving a fluid flow. The turbine is supported on the housing in the interior of the cap and configured for being driven by the fluid flow. The at least one gear is supported on the housing and meshed with the turbine for being driven by the turbine. The valve is supported on the housing and meshed with the at least one gear for being driven by the at least one gear. The valve closes the interior of the cap from receiving the fluid flow after a predetermined number of rotations driven by the at least one gear.

A device (1) is provided for ventilation and integrity testing of a filter unit (2) that can be supplied with pressure. The filter unit (2) has a filter element (9) arranged in a housing (6) between an inlet (7) and an outlet (8). The housing (6) can be ventilated by an air filter (3) connected to the housing interior (12). A filter valve (4) is arranged upstream of the air filter (3) facing the housing interior (12) and connects the air filter (3) to the housing interior (12). The air filter (3) can be connected on its side facing away from the housing interior (12) to a test line (14) for supplying pressure. An inlet valve (5) is arranged upstream of the inlet (7) and connects an inlet line (10) to the housing interior (12).

Apparatus that makes it possible to prefill spin-on filter cartridges by allowing users to easily pour fluid only into the filter cartridge input port holes. Particularly useful for applications where introducing contaminants downstream of the filter can be detrimental to the system the filter protects.