Abstract: A fragrance container of a scenting device, having a wall enclosing an interior space, wherein at least one air inlet opening and at least one air outlet opening are provided in the wall for air to flow through the fragrance container, wherein at least one carrier medium for a fragrance is arranged in the interior space of the fragrance container, wherein the at least one carrier medium has a plurality of free surfaces along which the air can flow through from the air inlet opening to the air outlet opening for the purpose of absorbing the fragrance.

Abstract: A method for operating a fragrancing device, wherein a blower device is provided which sucks air through an air inlet opening into the first air duct and conveys it to an air outlet opening. At second air duct is provided, which branches off from the first air duct at a first duct branch and rejoins the first air duct at a second duct branch. A first fragrance container is provided in the second air duct between the first duct branch and the second duct branch, which can be flowed through by the air flow in the second air duct. A first valve device is provided upstream and/or downstream and controls the flow through the first fragrance container. The blower is controlled in such a manner that a defined, substantially constant, air flow is generated as a sum through the first air duct and the second air duct.

Abstract: A torque transmission device, in particular for a flap of a heating, ventilation, or air conditioning system of a motor vehicle, having a drive lever, an output lever, and having a connecting rod, wherein the drive lever can be rotatably disposed with respect to a first axis and can be connected to a driving element, wherein the output lever can be rotatably disposed with respect to a second axis and can be connected to an element to be driven, wherein the connecting rod is connected in an articulated manner to the drive lever and to the output lever, wherein the connecting rod is formed connected to the drive lever and/or to the output lever by means of a film hinge.

Abstract: An accumulator arrangement for a hybrid or electric vehicle includes a plurality of battery cells which are stacked in a stacking direction to form at least one battery block. The at least one battery block is arranged in a housing of the accumulator arrangement. A cooling device includes a cooling plate arranged on one side on the battery block and extending parallel to the stacking direction. On the at least one cooling plate at least one cover plate with at least one cooling channel through which a coolant can flow is secured, facing away from the at least one battery block. The cooling plate forms an outer contour of the fluid-tight housing. The at least one cooling channel of the cover plate is open towards the at least one cooling plate and is closed by the at least one cooling plate.

Abstract: A flat tube with a wall made of a shaped first sheet metal strip which forms two fluid chambers, wherein the two fluid chambers are arranged spaced apart from one another and wherein the two fluid chambers are connected spaced apart from one another by a web wherein the flat tube has two tube ends in its tube longitudinal direction, wherein the web has a recess by means of a cutout at at least one tube end.

Abstract: A heat exchanger having a heat exchanger core having at least two rows of tube and fin blocks, each tube and fin block contains an assembly of tubes and fins, wherein the tubes are aligned parallel to each other while the fins are located between adjacent tubes, each tube having a first tube end and a second tube end, each tube and fin block of the first tube and fin block and the second tube and fin block having a manifold tube, the manifold tubes having a row of openings for a fluid tight connection with tubes of a tube and fin block, wherein the first tube ends of the first tube and fin block are fluid tight connected to the openings of a first manifold and the first tube ends of the second tube and fin block are fluid tight connected to the openings of a second manifold.

Abstract: An electrical machine for a vehicle includes a rotor, which can be rotated about an axis of rotation, by which an axial direction of the electrical machine is defined, a stator with stator windings; and a cooling channel, or a plurality of cooling channels, through which a coolant flows. The stator has stator teeth, which extend along the axial direction and are spaced apart from each other along a circumferential direction and which bear the stator windings. At least one stator winding is embedded in an electrically insulating plastic for thermal coupling, the electrically insulating plastic is arranged, together with the at least one stator winding, in an intermediate space, which is formed between two stator teeth adjacent in the circumferential direction, and the electrically insulating plastic is formed by a first plastic mass of a first plastic material and a second plastic mass of a second plastic material.

Abstract: This disclosure relates to a separation apparatus for use in a fuel emission control system. The separation apparatus includes a tube being disposed within a conduit of the fuel emission control system and a membrane being disposed within the tube. The tube includes an introduction port for introducing a fuel vapor generated in a fuel tank. The disposition of the membrane increases turbulence of the fuel vapor in the tube and separates the fuel vapor into a fuel-rich mixture and a fuel-lean mixture. The tube further includes a discharge port for discharging the fuel-rich mixture.

Abstract: A piston ring that is pre-treated by grit blasting to a defined roughness, followed by PVD coating with a metal nitride to a thickness of at least 10 ?m, leaving peaks and valleys in the coated piston ring. The coated piston ring is then lapped to remove the peaks without penetrating the coating, so that valleys and plateaus remain in the coated surface. The resulting piston ring exhibits superior coating retention due to the increased surface area created by the grit blasting, and yet also superior performance, as the cavities remaining increase the porosity of the coating and thus enhance the lubrication of the ring.

Abstract: A piston assembly for an internal combustion engine includes a cylinder bore and a piston having exactly two ring grooves, a scraper ring positioned in the upper ring groove, and an oil control ring positioned in the lower ring groove. A constant twist occurs in the scraper ring about a rotational center of the cross-section, the constant twist occurring at each cross-sectional location of the scraper ring about the circumference of the ring and between adjacent free ends of the ring. The oil control ring can be of a multi-segmented U-flex design, with a coil spring mounted in a channel thereof. The combination of the two rings leads to improved sealing and oil control so that the piston can be manufactured with only two rings, thus reducing overall weight and cost.

Abstract: A piston for an internal combustion engine may include a piston crown having a closed circumferential cooling channel, a piston skirt, a first metallic coolant arranged in the cooling channel and having a metal or metal alloy with a melting point below 250° C., and a second nonmetallic coolant arranged in the cooling channel and having a melting point below 40° C. and a density which is lower than a density of the first coolant.

Abstract: An HVAC module for an automotive vehicle includes a housing defining an air inlet, an upper front zone outlet, a lower front zone outlet, and a rear zone air outlet. An evaporator and a heater downstream of the evaporator are disposed in the housing. The air inlet of the housing is divided by a first divider into an OSA portion exclusively receiving outside air and a REC portion exclusively receiving recycled air. Each of the evaporator and the heater has a respective OSA portion receiving the outside air and a REC portion receiving the recycled air entering the HVAC module through the inlet. A second divider between the evaporator and the heater directs the outside air from the REC portion of the evaporator to the REC portion of the heater. Two temperature doors control access of separate partial streams of the recycled air from the evaporator to the heater.

Abstract: A heat exchanger for a refrigerant circuit of an air conditioning system, with a heat exchanger block with a first fluid channel as a refrigerant channel for the flow of refrigerant as a first fluid and with a second fluid channel for the flow of a second fluid therethrough. The first fluid channel and the second fluid channel are in thermal contact for the exchange of heat. A third fluid channel is provided, which is provided as a second refrigerant channel for the flow of refrigerant therethrough, wherein a second refrigerant inlet and a second refrigerant outlet are provided, which are in fluid communication with the third fluid channel, wherein the first fluid channel is in direct thermal contact with the third fluid channel as an internal heat exchanger for the exchange of heat between the refrigerant in the first fluid channel with the refrigerant in the third fluid channel.

Abstract: An inner rib, in particular for a flat tube, in particular of a heat exchanger, made from a metallic flat strip, which is shaped in a wavy modulated manner, having a large number of wave crests and wave troughs, which are each arranged alternately in a longitudinal direction of the inner fin, an essentially straight, web-like fin area being provided between one wave crest and an adjacent wave trough and connecting the wave crest to the wave trough, the metallic flat strip having a first strip thickness L1, which is essentially constant in the area of the wave crests and the wave troughs, the flat metallic strip having a second strip thickness L2, which is provided in the area of the web-like fin area, L2 being smaller than L1.

Abstract: An evaporator with a heat transfer core having a number of pipes and fins, wherein a first fluid can flow through the pipes and a second fluid can flow around the pipes and the fins for heat transfer between the first fluid and the second fluid, with at least one collecting tank which is in fluid connection with the pipes, wherein at least two collecting chambers are formed by means of the at least one collecting tank, wherein one of the collecting chambers is equipped with a first fluid connection pipe which serves as an injection line for supplying the first fluid and the other collecting chamber is equipped with a second fluid connection pipe which serves as a suction line for discharging the first fluid, wherein for mounting an expansion valve on at least one of the fluid connection pipes a retaining element is fastened to at least one of the fluid connection pipes.

Abstract: An improved evaporative emission mitigation system for a motor vehicle includes a canister filled with an adsorbent material connected to a membrane module. The membrane module contains a membrane that separates gaseous hydrocarbons from inert air components within fuel vapor generated by the evaporation of fuel due to the heating of the motor vehicle. The gaseous hydrocarbons separated by the membrane are returned to the canister, where they will again be adsorbed by the adsorbent material. The inert air components are vented from the membrane module into the open atmosphere outside of the motor vehicle.

Abstract: An air-conditioning system, in particular for a motor vehicle, having a refrigerant circuit, which has an evaporator and a condenser, and a coolant circuit, wherein the refrigerant circuit and the coolant circuit are thermally coupled to each other, in particular in the region of the evaporator and in the region of the condenser, wherein the coolant circuit has a line system having junctions, wherein a heating body, a cooling body, an outside heat exchanger, an additional heat source, a first bypass line, and a second bypass line are integrated into the line system, wherein the first bypass line bypasses the additional heat source from the cooling body to the outside heat exchanger, and/or the second bypass line bypasses the additional heat source from the heating body to the outside heat exchanger.

Abstract: A cylinder liner for an internal combustion engine is formed of cylindrical liner body having an interior cavity with a cylindrical inner surface, a sensor embedded in the cylindrical liner body and being configured for sensing a physical condition on the cylindrical inner surface, and a transmitter connected to the cylindrical liner body at a position remote from the sensor. A connecting wire connects the transmitter to the sensor, and is embedded in in the cylindrical liner body. The sensor is located in an upper portion of the cylindrical liner body and the transmitter is located directly below the sensor, such that the wire runs vertically. The transmitter can send information obtained by the sensor to a remote processor for calculating various operating states of the liner.

Abstract: An electric heating device having a multiplicity of electric heating elements, wherein the respective electric heating element has a first electric contact element and a second electric contact element and at least one heater, wherein the first and second electric contact elements achieve electrical contacting of the at least one electric heater, additionally having a first voltage connection element and a second voltage connection element, additionally having first switching elements and having second switching elements, wherein pairs of two electric heating elements are each wired such that two first electric contact elements in each case of the two electric heating elements can be switchably connected to the first voltage connection element by one of the first switching elements and one of the second contact elements in each case of the pairs can be switchably connected to the second voltage connection element by means of a second switching element.

Abstract: An internal combustion engine for a motor vehicle includes a crankcase ventilation device for removing blow-by gas from a crankcase, a pressure sensor being provided for measuring the gas pressure in said crankcase, and a control unit connected to and in communication with the crankcase ventilation device being configured and/or programmed to run a tightness test for said crankcase ventilation device when the internal combustion engine is switched off.