A dust filter is configured to filter air drawn into a vehicle canister. The dust filter includes a first portion including a first engaging portion and a second portion including a second engaging portion. The second portion is attached to the first portion by engagement of the second engaging portion with the first engaging portion. The first portion includes a filtration member and a case. The case includes an inner chamber within which the filtration member is disposed. The case includes a drainage port configured to drain liquid that has infiltrated the inner chamber. The second portion is attached to the first portion to form a cover that covers the drainage port together with the first portion. The cover has an outlet that opens to the outside at a position lower than the drainage port.

A particulate filtration device is suggested, comprising an inlet for an inflow of a gas stream which is particle-laden, an outlet for an outflow of the gas stream having a significantly reduced particulate load, a main filter section, which is arranged within a flow path of the gas stream between the inlet and the outlet and which comprises a filtration medium, and a prefilter chamber, which is arranged upstream of the main filter section and which comprises an inertial filter element, having several perforations, wherein the perforations of the inertial filter element are arranged within the flow path of the gas stream in such a way that when the flow path of the gas stream is passing through the perforations, an inertial separation of the particulates from the mean flow path of the gas stream is achieved.

A particulate filtration device is suggested, comprising an inlet for an inflow of a gas stream which is particle-laden, an outlet for an outflow of the gas stream having a significantly reduced particulate load, a main filter section, which is arranged within a flow path of the gas stream between the inlet and the outlet and which comprises a filtration medium, and a prefilter chamber, which is arranged upstream of the main filter section and which comprises an inertial filter element, having several perforations, wherein the perforations of the inertial filter element are arranged within the flow path of the gas stream in such a way that when the flow path of the gas stream is passing through the perforations, an inertial separation of the particulates from the mean flow path of the gas stream is achieved.

The present disclosure relates to a dust extractor (1) comprising a dust cyclone container (3) comprising a dust inlet (2) leading into the dust cyclone container (3), the dust extractor (1) further comprising a fine filter section (12) adapted to receive at least one fine filter part (15) downstream the dust cyclone container (3). A contaminated side of the fine filter part (15) is adapted to be fluidly connected to the dust cyclone container (3) via an air channel (47) that at least partly is comprised in a lid arrangement (13,14) and runs between a cyclone channel connecting rim (23) and a first fine filter section channel connecting rim (40), when the lid arrangement (13, 14) is positioned over the dust cyclone container (3) and the fine filter section (12). A first lid part (13) is releasably attachable to the dust cyclone container (3) and a second lid part (14) is releasably attachable to the fine filter section (12).

An air intake system may include an engine air cleaner having a dust valve. The intake system may be configured for arrangement on the engine. The dust valve may also be operable to open or close based on operating characteristics of the engine.

An air intake system may include an engine air cleaner having a dust valve. The intake system may be configured for arrangement on the engine. The dust valve may also be operable to open or close based on operating characteristics of the engine.

A surface cleaning apparatus has a cyclone chamber having a longitudinal cyclone axis of rotation wherein the dirt outlet is defined by a gap between the sidewall of the cyclone and a plate positioned at the dirt outlet end of the cyclone.

An air filtration apparatus includes an airflow powerhead assembly including a fan assembly and a vane assembly, a filter assembly, and a separator chamber housing inside of which the filter assembly is disposed. The separator chamber housing has a chamber inlet at a first axial side and a clean air outlet at a second axial side of the separator chamber housing opposite the first axial side. The filter assembly has a first axial end adjacent the chamber inlet and a second axial end adjacent the clean air outlet. The separator chamber housing includes at least one debris ejection slot extension configured to eject debris from an inner space of the separator chamber housing. The filter assembly includes a debris catch tray disposed at the second axial end, the debris catch tray having a debris ejection slot aligned with the at least one debris ejection slot extension.

A water extractor for an environmental control system of an aircraft includes a separation mechanism configured to divide an airflow into a first airflow and a second airflow. The separation mechanism includes an inlet conduit, a body in fluid communication with the inlet conduit, and at least one coalescing feature arranged within an interior of the body. A water extraction vessel is arranged in fluid communication with the separation mechanism. The water extraction vessel includes a first portion for receiving the first airflow and a second portion for receiving the second airflow. The first portion is configured to collect and remove water from the first airflow.

The present disclosure relates to an apparatus for trapping a reaction by-product created by an etching process, the apparatus being configured to trap a reaction by-product contained in an unreacted gas discharged after a process is performed in an etching process chamber during a semiconductor manufacturing process, trap and stack the reaction by-product in the form of powder at a position between a vacuum pump and a scrubber through multiple flow path switching structures, multiple trapping structures, and multiple stacking structures, and discharge only a gaseous unreacted gas to the scrubber.