A blow-by gas filtration assembly has an axis and includes an assembly body including a filtration chamber, an inlet mouth for filtering the blow-by gases, and an outlet mouth for the filtered blow-by gases. A filter group includes a central cavity radially crossed by blow-by gases. An electric drive operatively connects to the filter group to command rotation about the axis and filtration, and includes an electric motor including a stator and rotor. An axial shaft includes a filter portion mounting the filter group, a command portion mounting the rotor, and a support portion axially between the filter and command portions. A support bearing radially engages the support portion and the assembly body. The filter assembly screwably engages the filter group and filter portion, by respective filter and shaft threads so the filter group screws to the shaft until the support bearing is axially engaged.

A blow-by gas filtration assembly has an axis and includes an assembly body including a filtration chamber, an inlet mouth for filtering the blow-by gases, and an outlet mouth for the filtered blow-by gases. A filter group includes a central cavity radially crossed by blow-by gases. An electric drive operatively connects to the filter group to command rotation about the axis and filtration, and includes an electric motor including a stator and rotor. An axial shaft includes a filter portion mounting the filter group, a command portion mounting the rotor, and a support portion axially between the filter and command portions. A support bearing radially engages the support portion and the assembly body. The filter assembly screwably engages the filter group and filter portion, by respective filter and shaft threads so the filter group screws to the shaft until the support bearing is axially engaged.

A gas turbine air intake system uses a filter element having a seal member with radial projections and radial recesses. The seal member forms a seal with components on the tube sheet of the system and at the end opposite of the tube sheet. At the end opposite of the tube sheet, there can be an assembly cover, or alternatively, an additional filter cartridge.

Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis.

Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis.

A device is provided that provides an unbiased filtration effect and an effect of removing captured substances through backwashing by causing a fluid to uniformly pass through a filter element over the entire length in an axial direction at the time of backwashing so as to efficiently rotate a captured-substance removal tool in a filtration unit 1 which includes the captured-substance removal tool 20 axially supported inside the tubular filter element 2 to be rotatable.

A filter assembly for a fluid filter includes a plurality of filter units assembled in series, and each filter unit includes: a connecting member, an input member and an output member. The input member of each of the filter units has an extending pipe connected to a connecting pipe of another filter unit, so that the filter units can be easily assembled by directly screwing the connecting pipe of the connecting member of one filter unit into the extending pipe of the input member of another filter unit, without using tools or fasteners. Hence, the assembling cost is relatively reduced.

Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis.

An air filter element for an air filter may include a first end plate and a second end plate spaced apart from each other in an axial direction and configured to bound the filter element in the axial direction. The first filter body may be arranged axially between the first and second end plates. A second filter body may be arranged axially between the first and second end plates. An intermediate plate may be arranged axially between the first and second filter bodies and have an intermediate plate area enclosed by an intermediate outer contour and a first end plate area enclosed by a first outer contour.

A filter for compressed air systems is provided. The filter includes a filter housing with a filter therein between an air inlet and an air outlet. Compressed air flowing between the air inlet and the air outlet passes through the filter housing and the filter element. A base is removably fastened to the filter housing which may be separated from the filter housing to allow the filter element to be removed and replaced.