Abstract: An air filter has a round housing that is coaxial to a central axis of the air filter. The housing has a housing bottom part and a detachable housing cover. A round filter element is received in the housing. The housing bottom part has a tubular housing wall with an open end and an outlet-side axial end provided with a central outlet socket positioned axially opposite to the open end. Through the outlet socket, air exits from the air filter after filtration. The housing cover closes off the open end. A raw air region with annular cross section is formed between round filter element and inner side of the tubular housing wall. The housing cover has an annular or ring section-shaped air inlet region with inflow openings through which air to be filtered enters the housing without deflection in a direction coaxially or parallel to the central axis.

Abstract: A filter system for filtering a fluid, in particular an air filter system, is provided with at least a filter element arranged in a filter housing that is provided with at least an inlet and an outlet for the fluid. An insulating body which is formed of a flat insulation material is arranged so as to surround and tightly enclose an outer contour of the filter housing. An insulating body and a method for manufacturing the insulating body are described.

Abstract: An isolated work space is created within a confined area used as an airflow plenum to inhibit the spread of debris and/or contamination. For example, a work area can be formed in an under-floor space of a datacenter. Forming the work area includes erecting an airflow barrier to surround a work area portion of the under-floor space, forming a lower-perimeter seal to seal a bottom edge of the airflow barrier, forming an upper-perimeter seal to seal a top edge of the airflow barrier, operatively connecting a vacuum source with the work area portion, and operating the vacuum source to reduce the air pressure within the work area portion relative to the remaining portion of the under-floor space.

Abstract: A modular cooling apparatus for cooling one or more rack-mounted electronic component enclosures in a datacenter includes a base duct section and a duct assembly. The base duct section includes an inlet to receive a cooling airflow and an outlet to transfer to the cooling airflow to the duct assembly. The duct assembly is connected to the base duct section. The duct assembly includes one or more modular duct sections. Each of the one or more modular duct sections has a vent and is configured such that the vent aligns with an exterior opening in the respective one of the one or more electronic component enclosures.

Abstract: Techniques are described for providing an automatic transfer switch (ATS), such as in a data center, to switch between a primary power system and a reserve power system based on a priority of the computing systems to which the ATS is supplying power. The ATS obtains the priority from a centralized database and obtains an existing load on the reserve power system. If the existing load is too high and the priority of the computing systems coupled to the ATS is too low, then the ATS may not switch to utilizing the reserve power system upon a failure in the primary power system.

Abstract: An air filter has a round housing that is coaxial to a central axis of the air filter. The housing has a housing bottom part and a detachable housing cover. A round filter element is received in the housing. The housing bottom part has a tubular housing wall with an open end and an outlet-side axial end provided with a central outlet socket positioned axially opposite to the open end. Through the outlet socket, air exits from the air filter after filtration. The housing cover closes off the open end. A raw air region with annular cross section is formed between round filter element and inner side of the tubular housing wall. The housing cover has an annular or ring section-shaped air inlet region with inflow openings through which air to be filtered enters the housing without deflection in a direction coaxially or parallel to the central axis.

Abstract: A cyclone separator for separating liquid and/or solid particles from a fluid is provided with three or more cyclone cells that each have a cell pipe provided with a guiding device. The guiding devices cause the fluid to rotate and to separate the particles from the fluid by the rotation of the fluid. The cell pipes each have a particle exit opening for letting out the particles that have been separated by rotation from the fluid. One or more particle outlets are provided to discharge from the cyclone separator the particles that have exited from the cell pipes.

Abstract: A filter system for filtering a fluid, in particular an air filter system, is provided with at least a filter element arranged in a filter housing that is provided with at least an inlet and an outlet for the fluid. An insulating body which is formed of a flat insulation material is arranged so as to surround and tightly enclose an outer contour of the filter housing. An insulating body and a method for manufacturing the insulating body are described.

Abstract: A brake dust collector for a motor vehicle for collecting brake dust of a vehicle wheel brake has a dust collecting device that has at least one filter element and at least one filter element receptacle. The at least one filter element is secured in the at least one filter element receptacle. The at least one filter element receptacle is a through opening in a wheel rim; an intermediate space defined between the wheel rim and non-rotating vehicle parts; or a combination thereof.

Abstract: A cyclone separator for separating liquid and/or solid particles from a fluid is provided with three or more cyclone cells that each have a cell pipe provided with a guiding device. The guiding devices cause the fluid to rotate and to separate the particles from the fluid by the rotation of the fluid. The cell pipes each have a particle exit opening for letting out the particles that have been separated by rotation from the fluid. One or more particle outlets are provided to discharge from the cyclone separator the particles that have exited from the cell pipes.

Abstract: A brake dust collector for a motor vehicle for collecting brake dust of a vehicle wheel brake has a dust collecting device that has at least one filter element and at least one filter element receptacle. The at least one filter element is secured in the at least one filter element receptacle. The at least one filter element receptacle is a through opening in a wheel rim; an intermediate space defined between the wheel rim and non-rotating vehicle parts; or a combination thereof.

Abstract: A unitized composite structure comprises a composite member having at least one integrally formed composite stiffener. At least one end of the stiffener includes a runout forming a substantially smooth transition between the stiffener and the composite structure. The stiffener and runout may comprise a crown, side walls, and base cap. The transition in the runout may include a width of the crown increasing, a height of the side walls decreasing, and the base cap splaying outwardly.

Abstract: A composite structure is made by placing a stiffener preform and a composite structure reinforcement on a tool. The preform and the reinforcement are vacuum bagged processed and co-infused with a thermoset resin to form a stiffened, unitized structure.

Abstract: An exhaust gas recirculation device for an internal combustion engine includes a return line, which branches off an exhaust tract and leads into an intake tract. A separator component is arranged in the return line. Downstream of the separator component, a gas line, via which additional gas can be supplied, leads into the return line.

Abstract: A unitized composite structure comprises a composite member having at least one integrally formed composite stiffener. At least one end of the stiffener includes a runout forming a substantially smooth transition between the stiffener and the composite structure.

Abstract: A composite structure is made by placing a stiffener preform and a composite structure reinforcement on a tool. The preform and the reinforcement are vacuum bagged processed and co-infused with a thermoset resin to form a stiffened, unitized structure.