Abstract: A filter element analysis system for analyzing a filter element within a vehicle, the system including various filter sensors so as to provide information regarding various filter element parameters, a locator which configured provide vehicle position information such that conditions regarding the vehicle environment can be tracked and correlated to the location, as well as a means for transmitting information to a remote server for analysis and tracking of the filter element information with regard to environmental conditions such that a filter element status, remaining filter life, or particle load and replacement timeline can be calculated and updated so as to provide more accurate predictive models of the filter element conditions. As well as provide alerts regarding the need and scheduling of replacement or cleaning of a particular filter element.

Abstract: A filter system for filtering a fluid has a filter housing with a housing top part and a housing bottom part, wherein the housing top part and the housing bottom part extend along a housing axis. An outlet socket is arranged at the housing top part and is provided to discharge the fluid after having been filtered. A non-return valve is arranged in an interior of the outlet socket. A filter element is arranged in the filter housing and separates a raw fluid side and a clean fluid side from each other. The filter element has a valve seat interacting with the non-return valve. The non-return valve closes in a closed position of the non-return valve a fluid path through the outlet socket and opens in an open position of the non-return valve the fluid path through the outlet socket.

Abstract: A computer implemented system and process of analyzing real-time measurements of a plurality of air quality sensors to provide an calculated estimate of airborne virus infection and air quality evaluation from current air quality measurements, advise those at risk, advise responsible parties of recommended actions to take, and in some embodiments take direct action in communication of instructions to air filtration and treatment equipment and HVAC systems to improve outside air flow, increase filtration, treat contaminated air and reduce humidity and reduce the risk of airborne virus transmission. Sensor data, calculated airborne infection risk, air quality, warnings and reports are created and distributed to network connected devices.

Abstract: A hollow filter element of a fluid filter has a coupling device for connecting with a first housing part of the filter housing when removing the hollow filter element from the second housing part. The coupling device is arranged at an axial end face opening of the hollow filter element. The hollow filter element can be joined by a rotation/insertion movement with the first or second housing part. The coupling device has guiding and entraining elements arranged circumferentially. A holding element extends circumferentially at the side of the guiding and entraining elements facing axially the outer side of the hollow filter element. Coupling elements for transmitting an axial pulling force can hook behind the holding element. The guiding and entraining elements are covered by the holding element radially inwardly and are connected force-transmittingly to the holding element so that the latter can be elastically stretched radially by them.

Abstract: A connection adapter for connecting a treatment apparatus to a connection head of a treatment device for a fluid is provided with a connecting section that connects to the connection head. A threaded socket section coaxial to an imaginary connecting axis is provided to screw on the treatment apparatus. The threaded socket section has at least one fluid passage channel connecting a fluid-conducting space of the treatment apparatus to a fluid-conducting space of the connection head. The connecting section has at least two screw holes for receiving screws or threaded bolts or the connecting section has a central thread that connects to a connection head-associated central thread. An assembly of connection head and connection adapter is provided. A treatment device provided with connection head and connection adapter is provided.

Abstract: A filter assembly for an air filter includes a filter element and a sealing member. The filter element has a filter medium and includes an inflow side, an outflow side, and a filter axis extending therethrough from the inflow side to the outflow side. The sealing member surrounds a peripheral edge of the inflow side of the filter element. The sealing member includes an edge protecting portion and a sealing portion. The edge protecting portion includes a side portion extending in a first direction from the peripheral edge of the inflow side along a portion of a side of the filter element. The sealing portion depends from the edge protecting portion and extends axially farther than the side portion of the edge protecting portion in a second direction perpendicular to the first direction. The sealing portion is adapted to engage a housing of the air filter.

Abstract: A round filter element of a filter for a urea-water solution has a filter bellows with a filter medium that continuously extends circumferentially, relative to a filter element axis, around an element interior. An end body is fastened to an end face of the filter bellows and provided with a connecting section for fastening the round filter element to a housing cover of a filter housing of the filter. The end body has a central opening communicating with the element interior. The central opening has a central insertion section for receiving a flexible separation section of a volume compensation device of the filter and has an outer flow-through section enabling flow of the urea-water solution out of the filtration volume or into the filtration volume. The filter has a volume compensation device with a flexible separation section that separates a compensation volume from the filtration volume of the filter.

Abstract: A separation device for separating fluid from a gas stream has a housing with housing corpus and housing cover non-detachably connected to the housing corpus. A hollow cylindrical filter insert is received in the housing in a flow path of the gas stream from a raw gas inlet to a clean gas outlet. The filter insert has first and second end discs at first and second axial end face sides. The filter insert has a main separator element with hollow cylindrical coalescing filter medium with coalescer material for removing fluid from the gas stream that is flowing radially through the main separator element. A preliminary separator element having a coalescing filter medium with coalescer material is arranged in the flow path of the gas stream between the raw gas inlet and the filter insert for removing fluid from the gas stream.

Abstract: A hollow filter element for insertion into an openable filter housing has a filter medium body configured as a hollow body surrounding an inwardly positioned flow space. At least one end disk is connected to the filter medium body and covers an axial end face of the filter medium body. A positioning element is arranged at the at least one end disk and interacts with a housing-associated blade of the filter housing. The positioning element receives the housing-associated blade with form fit in two different transverse directions relative to the longitudinal axis of the filter medium body. The positioning element has a positioning recess.

Abstract: A filter device is provided with a filter housing provided with a housing wall and with a filter element arranged in the filter housing. The filter element has an annular filter medium body and an end disk arranged at an end face of the filter medium body. The filter medium body surrounds in a ring shape an inwardly positioned flow space for receiving a fluid to be filtered. An annular circumferentially extending flow path is positioned between an outer contour of the end disk and an inner side of the housing wall of the filter housing. Guide vanes project into the annular circumferentially extending flow path. The guide vanes are fastened at the end disk at the filter element. A cover is arranged at the end disk at the filter element and covers a portion of the annular circumferentially extending flow path.

Abstract: A rotary vessel for a filter assembly has a rotor body rotatable about an axis of rotation and a spigot with a non-circular cross-section and integral with or coupled to the rotor body. The spigot extends away from the rotor body along the axis of rotation and engages with a bearing. The spigot facilitates transfer of rotary motion between the rotor body and the bearing. A filter assembly has a housing with a main body and a closure member separably attachable to the main body. The rotary vessel is disposed inside the housing. The closure member retains the rotary vessel inside the housing and is separable from the main body to permit removal of the rotary vessel from the housing. The spigot integral with or coupled to the rotor vessel engages with a bearing of the filter assembly to rotatably support the rotary vessel in the housing.

Abstract: A filter system for liquid has a filter head with drainage channel and stop element. A filter cartridge is mounted by screw-in movement at the filter head and has a support ring rotatably fastened to its housing part. The support ring has an eccentric closure element and a first positioning element guided toward the stop element by the screw-in movement to position the support ring at the filter head in a rotational position for axially aligning closure element and drainage channel. The closure element is transferred axially into a sealing seat at the filter head to close the drainage channel when screwing on the filter cartridge. The support ring has a second positioning element holding the support ring in a rotationally fixed position at the filter head when unscrewing the filter cartridge so that the closure element is moved out of the sealing seat only in an axial direction.

Abstract: A filter device has a housing plate with a sleeve extending along a longitudinal axis perpendicular to the housing plate. The sleeve guides fluid containing particles along an inner sleeve surface to separate particles from the fluid and discharge the particles via a discharge window of the sleeve. An immersion tube plate opposite the housing plate has an immersion tube projecting coaxially into the sleeve for outflow of the fluid. The immersion tube has a sealing and centering section about an outer circumference of the immersion tube that forms a sealing surface parallel to the longitudinal axis and radially seals with an inner surface of the sleeve. The sealing and centering section extends about the immersion tube to provide coaxial alignment with the sleeve. A radial and/or axial expansion of the sealing and centering section is reduced in a predetermined region of the immersion tube opposite the discharge window.

Abstract: A multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid is provided with a plurality of cyclone cells for separating particles and/or liquid from the gaseous fluid. The cyclone cells each have an inlet for the gaseous fluid to be purified, an outlet for the gaseous fluid freed of particles and liquid, and at least one discharge window discharging the separated particles and liquid. At least one discharge chamber is provided, and the discharge windows of the cyclone cells open into the at least one discharge chamber. At least one discharge opening leads out of the at least one discharge chamber. The at least one discharge chamber tapers in a funnel shape toward the at least one discharge opening. A multi-stage fluid filter is provided with the multi-cyclone separator that is arranged upstream of a main filter of the multi-stage fluid filter.

Abstract: A filter system for liquid media has a filter housing with housing pot and housing cover. The housing pot has a drainage channel with bottom-side drainage opening. A bottom end disk of a filter element has a closure element arranged off-center to a longitudinal filter element axis. The closure element, in predetermined installation position of the filter element, extends seal-tightly across or into the drainage opening. The bottom end disk has a cutout corresponding with a positioning aid of the housing pot. By screwing on the housing cover, the filter element moves with the housing cover axially toward the drainage opening and rotates until positioning aid and cutout engage and lock the filter element relative to the housing pot in a predetermined rotational position where the closure element is axially aligned with the drainage opening. The filter element moves with the housing cover axially into the predetermined installation position.

Abstract: A filter element for liquid filtration has a hollow-cylindrical filter medium body and an end disk covering an end face of the filter medium body. A central cutout axially penetrates the end disk. An outflow channel for liquid to be filtered or filtered liquid is arranged at the end disk and connects to a liquid collecting space. The outflow channel extends from a radially outward wall surface of the filter medium body to the central cutout of the end disk. The outflow channel is controlled by a drainage device. A filter device with a filter housing provided with such a filter element has a drainage device that controls the outflow channel. A filter device with a drainage device having a first drainage position for draining only water and a second drainage position draining water from a water collecting space and liquid from a liquid collecting space is provided.

Abstract: A heat exchanger for cooling intake air with a coolant is provided with a shell and first and second front faces, wherein one of the front faces is an inlet and the other an outlet for intake air. The shell has at least one coupling element disposed along a circumferential line of the shell that is spaced apart from the first front face by a predetermined distance. The shell has a port as an inlet or outlet for the coolant. The port is arranged at a spacing from the first front face. The spacing is larger than the predetermined distance. The shell has an insertion section between first front face and circumferential line. The shell has an internal duct system connected to the port for guiding the coolant into the insertion section. The coupling element can fixedly couple with at least one corresponding coupling element of an air duct.

Abstract: An exchangeable filter system is provided with an exchangeable filter module that has at least one fluid inlet, at least one fluid outlet, and a fluid path connecting the at least one fluid inlet and the at least one fluid outlet with each other. The exchangeable filter module is provided with at least one filter element for filtering a fluid. A flange element and a counter flange element are provided. The flange element is provided to releasably engage the exchangeable filter module and to releasably engage the counter flange element. A valve device is arranged in the flange element. The valve device blocks the fluid path when the flange element is in engagement with the exchangeable filter module and is disengaged from the counter flange element. An internal combustion engine is provided with such an exchangeable filter system to filter fuel, lubricant or urea.

Abstract: A liquid cleaning element has a cleaning medium and a carrier medium connected to each other. The carrier medium is provided with a liquid connector to connect to a line for liquid to be cleaned or cleaned liquid. The liquid cleaning element has a bend in a section provided with the cleaning medium and the carrier medium. The carrier medium, prior to connection to the cleaning medium, is pre-manufactured in a final shape of the liquid cleaning element. The liquid connector has a cylindrical suction socket and is arranged at or integrated in the carrier medium. A liquid cleaning system is provided with the liquid cleaning element and a holder holding the liquid cleaning element. In a method for producing the liquid cleaning element, the carrier medium is pre-manufactured in a final shape of the liquid cleaning element and the cleaning medium is connected to the pre-manufactured carrier medium.