Provided is a linear compressor. The linear compressor includes a cylinder disposed in a shell to define a compression space for a refrigerant, a piston installed to reciprocate in the cylinder, a motor assembly that allows the piston to move in an axial direction of the cylinder and thereby to compress the refrigerant introduced into the compression space, a nozzle which is provided in the cylinder and through which a portion of the refrigerant introduced into the compression space passes, and a cylinder filter installed in the cylinder and disposed at an inlet-side of the nozzle. At least one or more surfaces of the cylinder filter are oil-repellent coated.

A frameless EMC air filter for a conductive enclosure includes a body comprising a conductive layer disposed between two filtering layers, the air filtering layers forming a periphery of the body. The frameless EMC air filter further includes one or more bare edge portions that extend outwardly past the periphery of the body. Each bare edge portion is formed by an extension of the conductive layer capable of providing direct electrical contact with the conductive enclosure.

The present invention provides a system and methods for filtering fluid using filter papers, stationary paper, cloth sheets or any other porous material. In one embodiment, the present invention uses the lateral flow direction along the porous sheets, instead of conventional vertical flow direction, for the removal of bacteria and particle contamination in the range from nanometers to millimeters. The pore sizes in the filter media along the lateral direction are modulated by controlling the compression of the porous sheets, instead of conventionally designing filters with different pore sizes. The lateral flow fluid filter system is scalable simply by increasing the feed area, feed length, and the number of porous sheets. The invention presents a universal fluid filtration system for wide range of applications such as water purification, food processing, chemical industry, oil and gas industry, and biological applications.

A measurement system includes an atomizer, an impactor, a particle counter, and a discharge reservoir. The atomizer has a liquid intake port and a gas intake port configured to aerosolize a liquid received at the liquid intake port. The impactor has an inlet coupled to the atomizer and has a first output port and a second output port. The impactor is configured to separate droplets wherein those droplets smaller than a selected cut point are directed to the first output port and those droplets larger than the selected cut point are directed to the second output port. The particle counter is coupled to the first output port and is configured to count particles larger than at least one particle size cut point. The discharge reservoir is coupled to the second output port.

A filter media for implementation in a sugar purification process that allows for a significant increase in sorbent material while maintaining, and enhancing the decolorization and. hydraulic properties. The filter media incorporates sorbent material, fiber having specific properties that allows for small particle sorbent material without jeopardizing the hydraulic properties of the media, and an electrolyte. The sorbent material is an inorganic, an adsorption, or ion exchange media, or a metal-organic framework. The implementation of this filter media in a sugar purification process eliminates the need for a clarification step during refining while providing for enhanced decolorization and hydraulic properties for fluid flow.

A surface-enhanced copper filter for air purification and a filter assembly with a surface-enhanced copper filter composed, at least in part, of substantially pure copper. The surface-enhanced copper filter uses the anti-microbial and electrostatic properties of elemental copper to inactivate biological contaminants and remove biological contaminants and other pollutants from the air. Also disclosed is a system and method using a filter assembly having a surface-enhanced copper filter to purify air. The disclosed surface-enhanced copper filter can be used in a stationary or mobile HVAC system or in a mobile air purification system.

Embodiments of the present invention provide a hollow cylindrical filter for removing efficiently foreign substances from fluids. This is performed by forming complicated passages including an axial direction and a radial direction in the filter. The hollow cylindrical filter is formed by winding a metal wire rod in a spiral and multilayered manner. The metal wire rod includes a recess formed throughout the entire length in a longitudinal direction, or recesses repeated along said longitudinal direction. Some wire rod layers extend in an axial direction of the hollow cylindrical filter while the adjacent wire rod layers extend in an intersecting direction, thereby forming a plurality of communication paths for communicating between the overlapping wire rod layers. Additionally, a space is formed between the recess of one wire rod layer and another adjacent wire rod layer, allowing the plurality of communication paths to communicate with each other.

A filter for the purification of exhaust gases of an internal combustion engine includes: a housing that can be flowed through by exhaust gas in an axial direction and has an inflow side and an outflow side; a filter body is formed in the housing from a plurality of filter layers, which filter body can be flowed through by the exhaust gas flowing through the housing. The filter layers are of annular form and are arranged concentrically with respect to one another, wherein, in alternating fashion, two filter layers adjacent to one another in a radial direction are connected to one another in fluid-tight fashion at the inflow side, and two filter layers adjacent to one another in a radial direction are connected to one another at the outflow side.

The present disclosure generally relates to the field of filtration. In particular, the present disclosure relates to filtration devices, systems and methods for high flowrates and low pressure differentials through porous bodies of metal fiber media.

Peripheral portion of filters includes short-side portions and long-side portions. A first component and a second component each include a first holding section and a second holding section, the long-side portion of the filter being compressively held between the first holding sections, and the short-side portion of the filter being compressively held between the second holding sections. At least one of the first component and the second component includes a wall portion configured to isolate the long-side portion and the resin from each other. The short-side portion and the resin are in contact with each other.