Abstract: An exhaust gas recirculation cooler may include a housing having a coolant inlet opening into an inlet region and a coolant outlet, and a plurality of cooling tubes arranged in the housing next to one another to form a tube row, each cooling tube connecting an exhaust gas inlet and outlet. At least two tube rows with one arranged on top of another and spaced from each other may form a tube block. Exhaust gas may be flowable through an inside of each cooling tube, and a coolant flow may be able to be circulated outside of the cooling tubes within the housing and flowable through an annular space enclosing the tube block in a circumferential direction. A flow guide arrangement for guiding the coolant in the interior of the tube block may be arranged in the housing lying against at least portions of one of the tube rows.

Abstract: This invention consists of a device for the treatment and elimination of bacteria in combustible hydrocarbons, whose function is to ensure the purity of said fuels. The elimination of bacteria takes place catalytically thanks to the alloy of which its inner part is composed and the interaction with the casing containing it. This device has the advantage of having a more intense effect of eliminating microbiological contamination than other technologies. It is installed inside the fuel tanks. Its design allows that its presence in the tank does not cause damage to the components that may be inside it.

Abstract: A modification to the air input ducting of an internal combustion engine. The engine can be gasoline, diesel or other fuel and can be located in any type of vehicle including automobiles, trucks, boats, ships, aircraft and any other vehicle. The invention includes mounting layers of very strong permanent magnets with interspersed iron or other metal structures in the air intake of the engine. The magnets are placed so that the intake air must flow between them through the strong magnetic field and at the same time contact the iron or other metal which is generally a surface layer on each magnet. The total amount of airflow is not impeded and is almost the same as when the magnets are not present. Pollution is also greatly reduced.

Abstract: An inlet assembly for an auxiliary power unit for an aircraft, including a duct configured to provide fluid communication from an environment of the aircraft to an inlet of an engine of the auxiliary power unit, and a filter received in and extending across the duct. The filter includes a first filter portion permeable to air, positioned across only part of the duct and defining a transverse edge in the duct; a second filter portion permeable to air and extending from the transverse edge to an end downstream of the transverse edge, and a collection member impermeable to water. The collection member extends between the downstream end and a duct wall. The first and second filter portions are non-parallel and the second filter portion and the collection member are non-parallel. An auxiliary power unit assembly and a method of feeding air to an internal combustion engine are also discussed.

Abstract: An inlet assembly for an auxiliary power unit for an aircraft, including a particle separator and a plenum having first and second inlets. A first duct configured to deliver air to an engine of the auxiliary power unit is in fluid communication with an outlet of the plenum. A second duct configured to deliver air to a compartment containing the auxiliary power unit is in fluid communication with the outlet of the plenum. The assembly is selectively configurable between a first configuration where the plenum is in fluid communication with the environment of the aircraft through the second inlet and through the particle separator, and a second configuration where the plenum is in fluid communication with the environment of the aircraft through the first inlet independently of the particle separator. An auxiliary power unit assembly and a method of feeding air to an auxiliary power unit assembly are also discussed.

Abstract: A fuel supply system having a low pressure region, a pumping device to deliver fuel from the low pressure region to a high pressure region. In the high pressure region between the pumping device and injectors there is a pressure storage system that is permanently under high pressure. The pressure storage system has a plurality of distributor units each with at least three connections connected in series. A respective injector connection of each distributor unit is connected to at least one injector each via a high pressure line that is under high pressure at times dependent on the injection cycle. Each distributor unit of the pressure storage system is assigned an individual leakage detection device. Each distributor unit is assigned a non-return valve, which allows a leakage flow starting out from the respective distributor unit in the direction of the pumping device.

Abstract: Technology is provided for a fuel injector mounting system for mounting an injector to an engine cylinder liner. The system includes an injector adapter having an adapter body including a first end portion threaded for engagement with a cylinder liner and an injector port formed in the adapter body opposite the first end portion. The injector port includes a plurality of concentric bores configured to receive the proximal end portion of an injector. A flange extends transversely from the adapter body and a collar engages a portion of the injector and connects to the flange to retain the injector in the adapter. A transverse passageway extends through a sidewall of the adapter body and intersects the injector port and an annular fitting is disposed on the injector adapter for fluid communication with the transverse passageway. An injector support bracket attaches a distal end portion of the injector to the engine.

Abstract: A gasket for a fuel injector includes: an annular tube having an opening, a first surface, and a second surface, in which the second surface is disposed opposite to the first surface of the annular tube; and an inner portion and an outer portion connecting the first surface with the second surface. The inner portion and the outer portion include a flexible material and interact with a fluid filled within the annular tube via the opening of the annular tube.

Abstract: A fuel injector for delivering fuel to an internal combustion engine includes a nozzle having a valve needle which is movable with respect to a valve needle seat. The valve needle travels through a range of movement between a closed position and an open position to control fuel delivery through at least one nozzle outlet. The valve needle cooperates with a needle sleeve or a control member which is located in a piston guide. The valve needle is movable relative to the needle sleeve or the control member. The needle sleeve or the control member is movable relative to the piston guide.

Abstract: A power system is provided that includes a plurality of engines and a compressed air source in communication with the plurality of engines and configured to assist in starting the engines. A plurality of engine controllers are provided each associated with a respective one of the plurality of engines. The engine controllers are communicatively linked with each other and upon receipt of a signal to start the plurality of engines are configured to stagger the starts of the plurality of engines according to a predetermined order and to apply an air start system charge delay timer before starting an individual engine when the compressed air source is in a first state in which the compressed air source is unable to assist starting at least one of the plurality of engines.

Abstract: An electronic control for engine block heater elements for heating an engine to an engine ready temperature includes a power input, a power output, and a controller. The controller includes a clock for keeping a time and a temperature sensor for sensing a temperature. The controller is configured for controlling the power from the power input to the power output in at least two modes of operation for heating the engine to the engine ready temperature. The second mode of timed ready is where the power from the power input to the power output is connected at a pre-calculated time interval for the purpose of making ready the subject vehicle for starting at the desired start time as set by the user. The third mode of maintain ready is where the power from the electrical outlet to the engine block heater element is regulated to maintain the engine ready temperature.

Abstract: The invention, while reducing noise, suppresses a load increase in a processor and a delay in drive control. An engine control unit includes a processor, a driving circuit including a switching element to drive a load such as a fuel injector and an ignition device, and a communication circuit that transmits control signals from the processor to the driving circuit via serial communication. The control signals each include a command frame for controlling the driving circuit and a data frame for driving the load. If a predetermined bits in each of the data frames received from the processor at predetermined time intervals are determined to be the same twice in succession, the engine control unit changes a state of a driving signal ‘Drive’ for driving the load and thereby changes an operating state of the switching element.

Abstract: Systems and methods related to floating powerhouse for hydropower turbine systems are presented. A turbine system may be coupled to floating powerhouse that can include a floating platform. A pressurized water delivery system can be coupled to the floating powerhouse and can accommodate vertical and/or horizontal movement of the floating power house. The pressurized water delivery system can include a segmented penstock coupling the turbine to an intake, and individual segments of the penstock can be free to rotate about a substantially horizontal axis, such that in response to variations in a tailwater height, the floating platform rising and falling does not disrupt fluid flow from a fluid source.

Abstract: A ship screw, pump screw or turbine screw for use under water or another liquid, comprising a front side and a rear side, wherein water or another liquid is forced from the front side to the rear side in use, and comprising a hub and at least two blades extending from said hub, wherein the blades are substantially helical/spiral shaped, their effective surface area increasing from the front side toward the rear side.

Abstract: A damp-proof layer is provided for creating a seal for a potential energy store. The damp-proof layer has a supporting structure of wire ropes arranged next to one another or sections of one or more wire ropes arranged next to one another. At least parts of the plane in which the wire ropes lie, or at least parts of a plane running parallel thereto, form a fluid-tight surface or layer, in which the wire ropes, at the ends of the damp-proof layer, are each secured to an anchor piece for anchoring the damp-proof layer or are guided around the anchor piece. Between each two anchor pieces there is in each case arranged an elastic element. A seal is assembled from damp-proof layers on a potential energy store with a hydraulic cylinder, in which there is arranged a piston for storing energy in the form of potential energy of the piston.

Abstract: Discloses herein a submersible power generation platform. The submersible power generation platform a power generation unit (10) including blades (11) configured to be rotated by flowing water (1) and a generator (13) configured to receive rotational force and to generate electricity; a frame (20) configured to fasten the power generation unit (10) therein so that the blades (11) are disposed toward a front location from the flowing water (1) enters; a pair of buoyant objects (30) configured to be disposed on both sides of the frame (20), and to float the frame (20); and one or more fastening ropes (40) configured to fasten the buoyant objects (30), wherein one end of each of the fastening ropes (40) is coupled to a balance center portion on the outer surface of a corresponding one of the buoyant objects (30) or an upstream portion of the buoyant object (30).

Abstract: The present disclosure is directed to methods for attaching a plurality of surface features to a rotor blade of a wind turbine. Such methods may include direct molding of the surface features to the rotor blade, bonding arrays of connected components to the rotor blade and subsequently removing connections between components, as well as using a flexible template with or without a tinted adhesive.

Abstract: This invention discloses an improved wind turbine suitable for mounting without a wind turbine tower. The wind turbine is based on a rotor with appropriately selected blades. A nozzle and diffuser in the wind flow increase the amount of wind energy available to the rotor. The rotor is interruptibly connected with one or more of a plurality of generators which allows generation at a wide range of wind speeds. The rotor is also interruptibly connected with a co-axial flywheel which allows for storage or use of rotational energy as needed by the availability of wind energy. One or more wind turbines can be grouped together in a common housing. Electricity can also be generated by means of stored energy or other motive source. The lack of a wind turbine tower and the general compact design allows the wind turbine to be used in close proximity to or on buildings.

Abstract: The Wind warrior is a wind turbine that is situated in the wind, horizontally so winds from all directions affect it equally without, the need for a rudder type directional control. The Wind Warrior has several veins, similar to umbrellas, at the ends of arms (trusses) that are connected to a center mandrel that turns with the arms as the wind drive; the veins attached to the outer ends of the arms. The wind acts upon the face side of the veins to spin them, transferring the wind force through the arms to the mandrel but partially closing the veins as they rotate into a position where the wind acts upon their back side. Drag is reduced due to the veins partially closing as they rotate until the face side is again exposed to the force of the wind and is opened and driven thereby to rotate the mandrel.

Abstract: In one aspect, a system for monitoring and controlling the operation of wind turbines located within a wind farm may generally include first and second wind turbines. The first wind turbine may include a first turbine controller configured to monitor an operating parameter(s) associated with the first wind turbine and provide a first control interface for controlling the operation of the first wind turbine. The second wind turbine may include a second turbine controller configured to monitor an operating parameter(s) associated with the second wind turbine and provide a second control interface for controlling the operation of the second wind turbine. The system may also include a secondary computing device coupled to the second turbine controller. The second turbine controller may be configured to provide the secondary computing device access to the first control interface in order to allow the operation of the first wind turbine to be controlled.

Abstract: Aircraft with an emission-free drive and method for emission-free driving of an aircraft. The aircraft includes an aircraft thruster structured and arranged to generate thrust force on the aircraft, an aircraft lift device structured and arranged to generate lift on the aircraft, and a heat engine, which is structured and arranged to convert thermal energy into kinetic energy to drive the aircraft thruster, that includes at least one flat-plate Stirling engine drivable by solar thermal radiation.

Abstract: A system for converting heat to kinetic energy is disclosed. The system may include a heat source, bimetallic bands and wheels that may support the bimetallic bands. The bimetallic bands may be heated by the heat source and may rotate the wheels. The rotation of the wheels may then be used to convert the kinetic energy to power.

Abstract: A method of producing a charge separation in a plasma having a low particle density which comprises a plurality of electrons and a plurality of positive ions. The method includes generating a magnetic field and passing the plasma having a low particle density along a first axis through the magnetic field. The magnetic field is generated having a component which is perpendicular to the first axis and is configured so as to deflect the plurality of electrons from the first axis and allow the plurality of positive ions to travel substantially undeflected along the first axis. Also provided is a magnetohydrodynamic generator and a low earth orbit thruster making use of the charge separation mechanism.

Abstract: An electric pump includes a rotor (6) formed in a cup shape integrally assembled to a rotor shaft (10) extended from a motor (3) side to a crank mechanism side inside a case body (2) in a state where an opening is directed to a shaft end on the motor side and rotatably supported by an intermediate bearing (13) arranged inside the opening, an eccentric cam (6d) integrally provided with a top surface portion of the rotor (6) in the axial direction, which is eccentric to a shaft center of the rotor shaft (10), and a crank shaft (12) one end side of which is assembled to an outer periphery of the eccentric cam (6d) through a cam bearing (11) and the other end side of which is connected to the pump side, in which a distance between the intermediate bearing (13) and the eccentric cam (6d) to which the crank shaft (12) is connected is reduced as short as possible, thereby suppressing occurrence of vibration and noise as well as reducing the device size in the axial direction by shortening a shaft length of the rotor

Abstract: A driving system includes a voltage conversion module, a frequency control module, a voltage switching module and a detecting module. The voltage conversion module is used for converting a first DC voltage into a second DC voltage. The frequency control module searches a resonant working frequency of a piezoelectric actuator through circuit oscillation and generates a switching signal according to the resonant working frequency. According to the switching signal, the voltage switching module converts the second DC voltage into an AC voltage so as to drive the piezoelectric actuator. The detecting module includes a gas pressure sensor and a microcontroller. The gas pressure sensor generates a detected gas pressure value according to a result of detecting a gas pressure of the piezoelectric pump. The microcontroller controls the voltage conversion module to adjust the output voltage. Consequently, the gas pressure of the piezoelectric pump is adjusted.

Abstract: A peristaltic pump having at least first, second, and third stages is provided. The peristaltic pump includes a plunger, inlet and outlet valves, a spring, and an actuator. The plunger actuates toward and away from a tube, the inlet valve is upstream of the plunger, the outlet valve is downstream of the plunger, the spring biases the plunger toward the tube, and the actuator mechanically engages and disengages from the plunger. In the first stage, the inlet valve is opened and the plunger is actuated from the tube, in the second stage, the inlet valve is closed, the plunger is actuated toward the tube, and the actuator is mechanically disengaged from the plunger, and in the third stage, the outlet valve is opened. In the third stage or in a fourth stage, the actuator actuates the plunger toward the tube to discharge fluid downstream past the outlet valve.

Abstract: In a method of an embodiment, a pressure sensor is selected from first and second pressure sensors according to a set flow rate. A measurable maximum pressure of the second pressure sensor is higher than a measurable maximum pressure of first pressure sensor. The target pressure of a chamber is determined according to the set flow rate. Until the pressure of the chamber reaches the target pressure after gas is started to be output from the flow rate controller to the chamber at an output flow rate according to the set flow rate and a pressure controller provided between the chamber and an exhaust apparatus is closed, the pressure of the chamber is measured by the selected pressure sensor. The output flow rate of the flow rate controller is determined from a rate of rise of the pressure of the chamber.

Abstract: An improved condensate pump for use with items that exhibit condensation having an audible alarm and concentrating flange.

Abstract: A control system for a fuel supply module of an engine is provided. The control system includes a first fuel flow sensor in a fuel supply line which detects a first amount of fuel flowing through the fuel supply line and generates a first signal indicative of the first amount of fuel. The control system includes a second fuel flow sensor in the fuel return line which detects a second amount of fuel flowing through the fuel return line and generates a second signal indicative of the second amount of fuel. A controller receives the first signal and the second signal. The controller calculates a difference between the first signal and the second signal. The controller commands operation of the fuel supply module to supply a fuel flow to the engine independent of the engine speed, based on the difference between the first signal and the second signal.

Abstract: A pump for an oil and gas well includes a barrel with a surface configured to contact oil and gas well fluid. The pump further includes a first coating formed on at least a portion of the barrel surface. The first coating includes a combination of diamond particles and a composition including nickel and phosphorous. The pump also includes a plunger with a surface configured to contact oil and gas well fluid. The pump additionally includes a second coating formed on at least a portion of the plunger surface. The second coating includes a combination of tungsten carbide particles and a composition including cobalt and chromium.

Abstract: An oil pump is provided with an inner rotor having external teeth, an outer rotor disposed in a loose-fit state within a pump chamber and having internal teeth meshed with the external teeth, a ring-shaped pressure chamber provided adjacent to the pump chamber in a direction of a rotation axis, a discharge opening for connecting the pump chamber and the pressure chamber, and a cylindrical discharge passage having one end connected to the pressure chamber and the other end serving as a connection opening. A portion of the discharge passage is located to open inside of the outer periphery of the pressure chamber when viewed in the rotation axis direction. The one end reaches to a middle of the pressure chamber when viewed in a radial direction of the rotation axis, and the discharge passage and the pressure chamber are in direct communication with each other.

Abstract: A vane fluid pump for a vehicle component has an inner rotor supported within a cam ring. A series of vanes is positioned within a series of slots in an inner rotor to define and separate a series of non-uniformly sized segmented pumping chambers to disrupt harmonics during operation to reduce pressure ripples and associated tonal noise. One chamber has a first sector angle being within a first predetermined range of a nominal value. A portion of the chambers each has a sector angle greater than the first sector angle, with an average sector angle greater than the nominal value by a second predetermined range. A remaining portion of the chambers each has a sector angle less than the first sector angle, with an average sector angle less than the nominal value by the second predetermined range.

Abstract: A gear pump is comprised of a driving gear, a first driven gear and second driven gears mutually in mesh; a housing accommodating them and defining a flow path including a first suction port, a second suction port, a first pressure port and a second pressure port; a floating comprising a thrust face bearing a floating force exerted by fluids and first, second and third pressure-receiving faces respectively oriented in a direction opposed to the thrust face; a first pressurizing chamber having fluid connection with the first pressure port or the second pressure port to exert pressure on the first pressure-receiving face; a second pressurizing chamber having fluid connection with the first suction port to exert pressure on the second pressure-receiving face; and a third pressurizing chamber having fluid connection with the second suction port to exert pressure on the third pressure-receiving face.

Abstract: There is provided a liquid feeding type screw compressor that can reduce size and weight and improve vibration insulation and sound insulation. A liquid feeding type screw compressor includes as components: a compressor main body; a motor driving the compressor main body; and a gas-liquid separator separating a liquid from a compressed air discharged from the compressor main body. The motor is arranged above the compressor main body. The gas-liquid separator is arranged below the compressor main body. A compressor main body casing constituting an inner cylindrical space forming a compression operation chamber together with the screw rotor and constituting the contour of the compressor main body and a casing constituting the contour of another component consist of an integrally molded single member.

Abstract: A positive displacement rotary compressor is designed for near isothermal compression, high pressure ratios, high revolutions per minute, high efficiency, mixed gas/liquid compression, a low temperature increase, a low outlet temperature, and/or a high outlet pressure. Liquid injectors provide cooling liquid that cools the working fluid and improves the efficiency of the compressor. A gate moves within the compression chamber to either make contact with or be proximate to the rotor as it turns.

Abstract: A method of determining a state of cooling water is provided. The method includes operating, by a controller, a driving motor of a cooling water-circulating pump that is configured to circulate cooling water at a fixed current, a fixed torque, or a fixed power. In addition, the controller is configured to calculate an average rotation speed of the driving motor for a preset first period of time during the operation of the driving motor. Whether the circulation state of the cooling water is normal is determined based on an error between the calculated average rotation speed and a preset reference rotation speed.

Abstract: Various embodiments provide a compact, portable dunnage bag inflation system that provides an air source that is easily carried by a user via a wearable container. Generally, the dunnage bag inflation system includes a portable dunnage bag inflator having an air generator that, in operation, expels air through an outlet. One end of a hose is removably connectable to the air generator to fluidly connect the hose and the outlet. An inflator head that includes a button actuatable to operate the portable dunnage bag inflator is connected to an opposing end of the hose. The dunnage bag inflation system also includes a rechargeable battery electrically connectable to the portable dunnage bag inflator to power the inflator and a charging station to charge the battery. This enables dunnage bags to be inflated to desired specifications at point-of-use and eliminates the need for a compressed air supply.

Abstract: A vacuum pump may include a rotor and a stator, wherein the rotor is supported by metal bearings (such as steel bearings) to allow relative rotation of the rotor with respect to the stator. A liquid PFPE lubricant compound is provided to lubricate the bearings, wherein the lubricant further comprises a solid lubricant that is in suspension in the liquid lubricant. The solid lubricant can comprise any of graphite, graphene and molybdenum disulphide. In other words, the inventive concept encompasses a lubricated bearing arranged to support a rotating shaft in a body under sub-atmospheric conditions, wherein a lubricant used to lubricate the bearing comprises liquid PFPE lubricant having a low vapour pressure, and a solid lubricant that is held in suspension in the liquid lubricant. The solid lubricant may comprise any of graphite, graphene and molybdenum disulphide.

Abstract: The present disclosure illustrates a fan structure which includes an outer shell member, a rotating module and a circuit module. The outer shell member has a receiving groove, and an axis part and a fastening part. The fastening part includes winding columns. The rotating module includes the fan, an axis coupling part pivotally connected with the axis part, and a magnetic part disposed on a periphery of the axis coupling part. The circuit module includes a circuit board which has positioning holes formed on and annularly arranged the surface thereof. Position-limiting caps are respectively mounted and fixed on the winding column after the winding columns are inserted through the positioning holes. A conductive wire is wound on the winding columns to form coils, and has two ends welded on the circuit board. Therefore, defect rate and assembly cost of production of fan structure of the present disclosure can be decreased.

Abstract: A method of pressurizing a downstream compressor system operatively connected to an upstream compressor system by using a bleeding line connected at a first end to the downstream compressor system and at a second end at least to one bleeding region or tie-out region of the upstream compressor system.

Abstract: A method, system, and apparatus to monitor health of a compressor are provided. The method, system, and apparatus include detecting whether the compressor has a fault associated using one or more of performance-based modeling and structure-based modeling of physical aspects associated with operation of the compressor; diagnosing any detected fault to determine the cause or causes of the fault; and evaluating each diagnosed fault to assess the significance of the fault. Data pertaining to the cause or causes of the fault and the significance of the fault is used to output health information corresponding to a health state or status of the compressor. The method, system, and apparatus also predict future health-related conditions of the compressor, and data pertaining to the predicted future health-related conditions is used to output health information corresponding to a future health state or status of the compressor.

Abstract: A turbocharged device subject to a surge event during operation, the turbocharged device including a turbocharger having a controller and a bearing assembly, a first sensor configured to detect the oil pressure provided to the bearing assembly, a second sensor in operable communication with the turbocharger, where the controller is configured to determine the magnitude of the surge event based at least in part on a signal provided by the second sensor in response to the surge event, and where the controller is configured to determine the wear inflicted on the turbocharger during the surge event based at least in part on the magnitude of the surge event and a signal provided by the first sensor in response to the surge event.

Abstract: A number of variations may include a product comprising a bearing housing comprising a body having an internal cavity defined by an inner surface of the body, wherein a first end of the body includes an end face and a second end of the body opposite of the end face is open, wherein the end face further comprises a through hole defined by an inner surface of the end face; and an end plate constructed and arranged to attach to the second end of the body of the bearing housing, wherein the end plate further comprise a first face and a second face, and an opening defined by an inner surface of the end plate.

Abstract: A waste water pump includes an impeller (12) and a surrounding pump housing (4), wherein an impeller side chamber (20) is formed between the impeller (12) and the pump housing (4). The impeller side chamber (20) has a first seal (16) between the impeller (12) and the pump housing (4), towards the intake side (32) of the impeller (12), and a second seal (18) between the impeller (12) and the pump housing (4), towards the pressure side (14) of the impeller (12). The first seal (16) is provided with a conveying device (28, 30) configured to convey debris from the impeller side chamber (20) to the intake side (32) of the impeller (12). The second seal (18) is provided with conveying device (38, 40) configured to convey debris from the side chamber (20) to the pressure side (14) of the impeller (12).

Abstract: A sealing structure includes: an insertion hole formed in a sealing plate; a sealing ring provided in the insertion hole; a first rotating body provided to the shaft, at least a part of the first rotating body positioned inside the insertion hole; a second rotating body disposed at a position apart from the compressor impeller than the first rotating body and having a maximum outer diameter larger than a minimum inner diameter of the insertion hole; and an annular receiving groove formed by the first rotating body and the second rotating body and receiving an inner circumferential surface side of the sealing ring.

Abstract: Disclosed is an enthalpy exchanger for changing the enthalpy of a throughflow medium to cool process water coming from an industrial process by passing air, including: an air inlet; an enthalpy exchanger panel guiding medium so the medium exchanges enthalpy with airflows let through by the air inlet; an air throughflow space connecting to the enthalpy exchanger panel so air can only flow into the air throughflow space via the air inlets and the enthalpy exchanger panels; a fan connecting to the air throughflow space and which draws in and blows out air via the air inlet, the enthalpy exchanger panel and the air throughflow space; and a rotation-symmetrical airflow-guiding element extends both into the air throughflow space and outside the enthalpy exchanger; the airflows in the air throughflow space converge at any position and are substantially free of vortices, turbulences and areas without suction.

Abstract: The invention relates to a fan having a fan wheel (2) comprising fan blades (3), which fan wheel extends radially outwards about a rotational axis of the fan (1) and whose outer radial circumference defines a fan wheel diameter (Dv), and a stator (4) with air deflecting webs (5) disposed in the axial direction of flow at a distance (A) from the fan wheel (1), which stator extends radially outwards and has a stator diameter (Dl) that is smaller than the fan wheel diameter (Dv), such that the stator (4) defines a partial cross sectional area of a fan wheel cross sectional area.

Abstract: A blade component has a longitudinal axis and extends between a root end and a tip end. The component comprises a composite laminate structure, the laminate structure comprising a plurality of plies of fibres in a matrix, wherein all the plies are arranged such that the fibres in respective plies are oriented symmetrically relative to the component axis at respective layup angles, the layup angles being in the range of 19° to 25° and ?19° to ?25° respectively relative to the component axis.

Abstract: A fan housing includes a housing body for accommodating fan components and an outer casing which surrounds the housing body in circumferential direction. The housing body has at least two webs extending in a circumferential direction on the radial outer side. The outer casing has at least two ribs extending in the circumferential direction on the radial inner side. The ribs, in the assembled state, between the housing body and the outer casing, form a channel circulating in the circumferential direction for receiving and holding a heating band. The outer casing has at least one guiding rib directed in the radial direction toward a housing body as well as into the channel and extending in the circumferential direction.

Abstract: The present disclosure describes a diffuser (2) for a fluid compression device, comprising at least one vane (4) mounted on a hub. In embodiments of the disclosure, at least one opening (5) is provided in the diffuser vanes (4), in the radial direction.