Abstract: A filter system has a primary filter element and a secondary filter element arranged in a housing between fluid inlet and fluid outlet. The secondary filter element is arranged inside the primary filter element. The primary and secondary filter elements are flowed through sequentially by a fluid to be filtered. The secondary filter element contains an adsorption agent and has a coupling device. The housing has a coupling element at the fluid outlet for coupling to the coupling device. The secondary filter element has a filter medium body which extends along a longitudinal axis and surrounds a hollow interior. The coupling device is arranged at an open end of the filter medium body and configured to be coupled rotationally fixed to the primary filter element. The coupling device has a thread for engaging a thread of the coupling element of the housing complementary to the thread of the coupling device.

Abstract: A filter housing includes a housing body having an openable installation opening and a housing cover to close the installation opening, and a fastening and/or locking device to secure the housing cover in a closed position. The housing body includes an element receptacle to receive a filter element through the installation opening. The fastening and/or locking device has a U-shaped bracket element with arm sections connected to a cross beam and an eccentric element mounted rotatable on the cross beam. The bracket element pivots with respect to a bracket pivot axis such that the cross beam with the eccentric element is pivotable on a side of the housing body with the installation opening. In the closed position the eccentric element engages with the housing cover and the bracket element grips the housing cover such that a part of the housing cover is between the arm sections of the bracket element.

Abstract: A filter device for gaseous media has a first filter housing part with a service opening and a filter element receiving space in which a filter element is received through the service opening. A second filter housing part closes off the service opening and is releasably connected of the first housing part. The first housing part has a radially projecting collar with at least one axial contact surface. The filter element has at least one support section projecting radially past a filter medium body thereof and supported on the axial contact surface of the collar. The axial contact surface of the collar has one or more elevations. The support section of the filter element has one or more cutouts corresponding to the elevations and engaging the elevations. The arrangement of the elevations and cutouts provides an unequivocal installation position of the filter element in the first housing part.

Abstract: A filter element for gaseous media for a filter device has a filter medium body with inflow side and outflow side at opposed axial ends. A frame element connected to the filter medium body extends at least partially circumferentially around the filter medium body and radially projects past it. A circumferential seal, provided at a frame side element facing the inflow side, extends circumferentially around a virtual axis. At least one support section, disposed at a frame element side facing the outflow side, supports the filter element at least axially in a filter housing of a filter device. The support section has at least two support surfaces, distributed about a circumferential extension of the frame element and spaced apart axially. The circumferential seal has a circumferential seal stay projecting in axial direction and sealing at least partially radially in relation to a seal surface of the filter housing.

Abstract: A filter device for gaseous media has a filter element arranged in a first housing part of a filter housing closed by a second housing part. First and second housing parts are releasably connected and separable from each other for removing the filter element. The filter element has a circumferential seal at an inflow side. The circumferential seal has a circumferential seal section with a radially outer circumferential side resting seal-tightly at a radially inner interior wall surface of the first housing part. A circumferential rib at the second housing part projects axially away from the latter and exerts contact pressure on the circumferential seal to press the seal section against the radially inner interior wall surface of the first housing part. In an assembly method, after the filter element is inserted, the second housing part closes the filter housing and the rib applies contact pressure on the circumferential seal.

Abstract: A filter element for fluid has a filter medium body with a flow-through medium arranged transversely to a fluid flow direction. A region of the flow-through medium between an inlet surface and an outlet surface of the filter medium body is filled with adsorption medium in intermediate spaces of the flow-through medium. A fluid-permeable cover medium covers the region at a peripheral rim of the inlet surface and/or the outlet surface. A filter system has a filter housing having an inlet and an outlet for fluid. The filter element is exchangeably arranged in the filter housing between a raw-side and a clean-side. A method for producing the filter element includes filling adsorption medium into intermediate spaces of the flow-through medium between an inlet surface and an outlet surface. The region is covered with a fluid-permeable cover medium at a peripheral rim of the inlet surface and/or the outlet surface.

Abstract: A filter element has a filter medium arranged between first and second end disks. The first end disk has a positioning and sealing section having external positioning recesses for engaging disturbance geometries of a filter housing with form fit to position the filter element circumferentially in the filter housing. The positioning and sealing section has an inner interface for radially sealing and axially positioning the filter element relative to the filter housing. The interface, viewed along a longitudinal direction from first toward second end disk, extends farther into the positioning and sealing section than the positioning recesses. The interface has an annular seal groove surrounding a symmetry axis of the filter element and configured to engage a seal rib of the filter housing with form fit for axial positioning relative to the filter housing. A filter system is provided with such a filter element in its filter housing.

Abstract: The present invention relates to a tube product, namely a perforating gun hollow carrier, consisting of a steel alloy with martensitic matrix, characterized in that it has a yield strength Rp0, 2 of at least 900 MPa, and that the steel alloy besides iron and impurities caused by melting has the following alloying elements: C 0.15-0.6%; Si 1.4-2.6%; Cr 2.0-4.0%; Mn 0.15-2.0%; Mo 0.2-0.6%; N<0.015%; and at least one of the alloying elements Nb, V and Ti in sum of ?0.01% and the tube product has been subjected to a quenching and partitioning heat treatment. Furthermore, the invention relates to a method of manufacturing such a tube product.

Abstract: A muffler for a filter system has a base body with an inlet opening. A fluid guiding rib is externally arranged on the base body so as to guide a fluid to be filtered by the filter system toward the inlet opening of the base body. The fluid guiding rib extends along a first flow direction, wherein the fluid to be filtered passes through the base body along the first flow direction. A filter system with a filter housing and a filter element removably received in the filter housing is provided with such a muffler. The muffler is attached to the filter housing.

Abstract: 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.

Abstract: Scheduling tasks for concurrent execution in parallel is provided. Metrics corresponding to execution of tasks in a plurality of stages of a distributed application are received from a set of worker nodes. An analysis of the metrics corresponding to the execution of the tasks in the plurality of stages of the distributed application is performed using a prediction model. An optimal per-stage task execution parallelism level for each respective stage of the plurality of stages is determined using the prediction model based on the analysis of the metrics. The tasks are scheduled to execute on the set of worker nodes based on the optimal per-stage task execution parallelism level determined for each respective stage of the plurality of stages to improve at least one of runtime of the distributed application and resource utilization by the distributed application.

Abstract: A filter element may include first and second pairs of opposing walls extending along a longitudinal axis of the filter element. The first and second pairs of opposing walls may create a flow passage between an inlet end and an outlet end of the filter element. The filter element may further include filter media configured to separate particulates from air flowing through the flow passage, and a wedge element associated with an exterior surface of at least one of the first pair of opposing walls. The wedge element may be configured to cooperate with an interior surface of a filter housing configured to receive the filter element.

Abstract: A filter element for filtering fluid has a filter bellows with a zigzag folded filter medium arranged in a reinforcement frame. A seal is arranged at least partially continuously at least in section at a circumferential side of the filter medium at a raw side inlet surface or clean side outlet surface of the filter bellows. Elongate adhesive sections are arranged along an unwinding of folds of the filter medium in adhesive tracks at an inflow side or outflow side, or both, of the folds. The adhesive tracks at the inflow side and outflow side are arranged offset in transverse direction of the filter medium. At least the adhesive tracks at the outflow side are designed to relieve tension for a length change compensation of the adhesive tracks at the outflow side in relation to filter medium and/or seal. A filter system with such a filter element is provided.

Abstract: A particle discharge device for a filter assembly has a housing with a valve seat, wherein the valve seat surrounds at least partially a symmetry axis of the housing. One or more particle discharge flaps embodied as one piece together with the housing are provided. The one or more particle discharge flaps are moveable from a closed state into an open state for discharging particles from the filter assembly. The one or more particle discharge flaps are resting against the valve seat in the closed state. A filter assembly is provided with a filter housing having a particle discharge socket in which the particle discharge device is arranged.

Abstract: A filter element for filtering fluid has a filter bellows with zigzag folded filter medium and provided with a raw side inlet surface and a clean side outlet surface. The filter bellows is arranged in a reinforcement frame. A seal is arranged circumferentially at least partially continuously at least in sections at an outer circumferential side of the filter medium at the raw side inlet surface or clean side outlet surface. Elongate adhesive sections are arranged along an unwinding of the folds of the filter medium in first adhesive tracks at an inflow side or outflow side, or both, of the folds. A cover element is arranged at the clean side outlet surface of the filter bellows and has a plurality of openings for a fluid flow therethrough. The cover element is fixedly connected to the seal. A filter system has such a filter element arranged in a housing.

Abstract: A filter element for filtering a fluid has a frame and a filter bellows provided with a filter medium folded in a zigzag shape to folds. The filter bellows has an inflow face at a raw side of the filter bellows and an outflow face at a clean side of the filter bellows. The filter bellows is arranged in the frame. A seal is arranged circumferentially at least partially continuously at least in sections at an outer circumferential side of the filter medium at the inflow face of the filter bellows or at the outflow face of the filter bellows. Elongate adhesive sections are arranged along at least two adhesive tracks on the filter medium at the inflow face of the filter bellows and/or at the outflow face of the filter bellows. Strain-relief devices for compensating a length change of the at least two adhesive tracks in relation to the filter medium and/or to the seal are provided. A filter system is provided with such a filter element.

Abstract: A particle discharge device for a filter assembly has a housing with a valve seat, wherein the valve seat surrounds at least partially a symmetry axis of the housing. One or more particle discharge flaps embodied as one piece together with the housing are provided. The one or more particle discharge flaps are moveable from a closed state into an open state for discharging particles from the filter assembly. The one or more particle discharge flaps are resting against the valve seat in the closed state. A filter assembly is provided with a filter housing having a particle discharge socket in which the particle discharge device is arranged.

Abstract: Parallel training of a machine learning model on a computerized system may be provided. Computing tasks can be assigned to multiple workers of a system. A method may include accessing training data. A parallel training of the machine learning model can be started based on the accessed training data, so as for the training to be distributed through a first number K of workers, K>1. Responsive to detecting a change in a temporal evolution of a quantity indicative of a convergence rate of the parallel training (e.g., where said change reflects a deterioration of the convergence rate), the parallel training of the machine learning model is scaled-in, so as for the parallel training to be subsequently distributed through a second number K? of workers, where K>K??1. Related computerized systems and computer program products may be provided.

Abstract: 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.

Abstract: A secondary filter element for a filter arrangement is provided with a filter medium and a circumferentially extending sealing device that seals the secondary filter element in respect to a filter receptacle of the filter arrangement. The circumferentially extending sealing device has an oval geometry with a long side and a short side. The circumferentially extending sealing device has an outer surface projecting, in a radial direction of the secondary filter element, farther past the filter medium when viewed along the short side compared to when viewed along the long side. A filter arrangement has a filter receptacle. A main filter element is received in the filter receptacle, and a secondary filter element is received in the main filter element. The circumferentially extending sealing device of the secondary filter element projects in a radial direction of the secondary filter element outwardly past an interior of the main filter element.