Embodiments herein relate to filtration systems that can pulse clean filter elements selectively, in specific patterns, to enhance cleaning efficacy. In an embodiment, a filtration system is included having a plurality of filter element mounts configured to retain filter elements, a compressed gas supply, and a plurality of valves in fluid communication with the compressed gas supply. The system further including a control circuit configured to control actuation of the plurality of valves. The system can operate in a first mode and a second mode. Wherein operating in a first mode includes opening valves according to a first valve actuation pattern and operating in a second mode includes opening valves according to a second valve actuation pattern. The system can be configured to periodically switch from the first mode to the second mode and compare the efficacy of the two modes. Other embodiments are also included herein.

The present application relates to an integrated washer-dryer, including a box body, an inner and outer drum assembly installed in the box body, a drying air duct provided between the box body and the inner and outer drum assembly, and a heat exchange device provided in the drying air duct. An air inlet and an air outlet of the drying air duct are both in communication with the inner and outer drum assembly, the air inlet is configured with a first filter member, and a second filter member is provided between the first filter member and the heat exchange device. A water spray nozzle is provided within the drying air duct, and the water spray nozzle is provided between the first filter member and the second filter member, and is used for washing off debris trapped on the first filter member.

A low-profile, large diameter, oval shaped, modular, inside out flow in-tank filter assembly includes at least one filter element having spaced first and second identical endcaps each with a central opening there through and filter media extending between the endcaps. The filter assembly includes a tank bushing coupled to the central opening of one endcap of at least one filter element on one end of the assembly, wherein the tank bushing is configured to mount the inside out flow in-tank filter assembly to a return line within a reservoir. The filter assembly includes a bypass valve coupled to the central opening of one endcap of at least one filter element on one end of the assembly, wherein the bypass valve is configured to allow flow to selectively bypass the filter media of each filter element. Further, each endcap includes a universal alignment and coupling structure around the central opening.

A point of use air wand with a built in filtration system may include a wand including a filter body; a filter housed within the filter body; an input endcap attached to a first end of the filter body, the input endcap operatively attached to an air source; and an accumulator endcap attached to a second end of the filter body. Forced air may enter the wand through the input endcap, flow through the filter, and then out of the wand through the accumulator endcap.

A fluid filter has a filter housing with inlet opening for fluid to be cleaned and outlet opening for cleaned fluid. A filter element arranged in an element receptacle of the filter housing separates inlet opening from outlet opening. The filter housing has a housing body with an installation opening to the element receptacle, through which the filter element in an installation direction is introduced into the element receptacle. The filter housing has a housing cover for closing the installation opening. The installation opening is arranged in a transverse side of the housing body that is lateral relative to the housing axis. The filter housing has a sealing surface, surrounding the housing axis at least partially circumferentially, for contacting a seal of the filter element. The filter element has a seal support device for the seal and the filter housing has a pressing device for the seal support device.

The invention refers to a filter arrangement for filtering dust-laden air (7) generated by a hand-guided power tool (1), in particular a sander or a grinder, during operation of the power tool (1). The filter arrangement comprises a filter cartridge (13) having a hollow casing (14), a filter element (22) located inside the casing (14), an air inlet port (15) located downstream in respect to an airflow (8) through the filter cartridge (13) and in respect to the filter element (22) and adapted to be pneumatically connected to the power tool (1) in order to allow the dust-laden air (7) generated by the power tool (1) to flow into the casing (14), and an air outlet port (20) located upstream in respect to the airflow (8) through the filter cartridge (13) and in respect to the filter element (22), the air outlet port (20) adapted to allow filtered air (9) leave the filter cartridge (13). It is suggested that the filter arrangement comprises an active airflow generating device (30) with a fan (40) comprising a plurality of blades (44) and driven by an electric motor (38) separate from an electric motor of the power tool (1), the airflow generating device (30) being in pneumatic connection with the air inlet port (15) of the filter cartridge (13) or with the air outlet port (20) of the filter cartridge (13) in order to generate or support the airflow (8) through the filter cartridge (13).

Systems, methods, apparatuses, and devices for removal of undesired materials are disclosed. Production of desired materials may result in the production of undesired materials. The systems, methods, apparatuses, and devices, may provide for removal of the undesired materials from various environments (e.g., industrial, commercial, residential, natural, etc.). The undesired materials may be removed in a substantially continuous manner and may limit or prevent contamination of an ambient environment with the undesired materials. The undesired materials may be removed with high-pressure vacuum through a fluid flow path that keeps the undesired materials from the ambient environment.

Assemblies and methods to extract materials from a retention collection may include a vacuum source including a series of vacuum generators configured to generate a vacuum flow to create a suction between the retention collection and a material collector for extraction of the material from the retention collection and transfer to the material collector. The suction generated by the vacuum flow will be sufficient to draw-in and convey the material in liquid, semi-solid and substantially solid states from the retention collection along a collection conduit and into the material collector for disposal. The vacuum generation assembly may include a filter and sound attenuation chamber connected to the vacuum source configured to receive and filter a vacuum exhaust fluid/air flow portion of the vacuum flow and to attenuate sound generated by the vacuum source.

A filter system has a filter housing with a fluid inlet for inflow of a fluid into the filter housing. A filter element is removably received in the filter housing. The filter element has a folded filter medium and a stabilization ring attached to the filter medium and stabilizing the filter medium. The stabilization ring is arranged on the filter medium such that the stabilization ring, at least in sections, is arranged within an inflow cross section of the fluid inlet. The fluid directly flows against the filter medium in operation of the filter system.

A filter system and clamp system for a gas turbine air inlet uses a single clamp system that allows for securing in place both a first element and a second element on the grid of the gas turbine air inlet. The clamp system can be released to allow for services of the first filter element, while the second filter element remains in sealing engagement with the grid.