Abstract: A vehicle air conditioner has an air conditioning unit for generating conditioned air, first and second roof outlets for blowing the air toward heads of passengers on second and third seat rows, rear face outlets for blowing the air toward an upper body of the passenger on the second seat row, a first rear foot outlet for blowing the air toward feet of the passenger on the second seat row, a second rear foot outlet for blowing the air toward calves of the passenger on the second seat row, a third rear foot outlet for blowing the air toward feet of the passenger on the third seat row, first and second pillar outlets for blowing the air toward side window glasses on sides of the second and third seat rows, and a rear side outlet for blowing the air toward upper legs of the passenger on the second seat row.

Abstract: A vehicle HVAC system comprises an evaporator, a heater core, an air mixing door between the evaporator and the heater core, the air mixing door being configured to direct a portion of an airflow to either bypass or pass over the heater, and a baffle. The baffle is configured to gradually change the area available to a portion of the airflow as the air mixing door is moved.

Abstract: In a vehicle air conditioner, a rotary door is disposed to open and close a foot opening portion and an inlet port of a face opening portion and a defroster opening portion. The rotary door includes a curvature outer peripheral portion for opening and closing the inlet port of the face opening portion and the foot opening portion, end plate portions located at two ends of the outer peripheral portion in an axial direction to open and close the foot opening portion, and shaft portions located at the end plate portions to be rotatably supported in the air conditioning case. The rotary door and the air conditioning case are provided such that a clearance between the inner wall of the air conditioning case and the outer peripheral portion of the rotary door is changed to be different between a bi-level air outlet mode and a foot/defroster air outlet mode.

Abstract: A modular system for a 1-to-4 zone climate control system for vehicles, which is provided with at least one housing and several air tempering and air distribution devices including a fan, optionally a filter, an evaporator, a heater and several doors arranged at a partition that is placed orthogonal to the evaporator and provided to divide the total volume flow into two partial volume flows for the left and right vehicle sides. In the first configuration the partition is provided with several blind fittings for the closing of the flow paths associated with air outlets and air channels of a second configuration. In the second configuration, the blind fittings are replaced with additional doors enabling the use of the air outlets and air channels of additional zones.

Abstract: Cooled air introduced from an evaporator through a first passage is divided into laminar flows by a guide assembly mounted on an air mixing door, and is changed in direction thereby and supplied to a mixing region. Warmed air introduced from a heater core through a third passage is divided into laminar flows by the guide assembly, and is changed in direction thereby and supplied to the mixing region. The mixing region mixes the cooled air and the warmed air with each other, and delivers uniformly mixed air into a passenger compartment via a face outlet, a defroster outlet, or a foot outlet.

Abstract: A waste heat collecting apparatus includes a loop-type heat pipe and a valve device. The loop-type heat pipe includes a vaporizing portion, a condensing portion, and a connecting portion. The valve device includes a driving portion and a valve body. The driving portion is configured to be actuated in accordance with at least one of pressure of the first medium, temperature of the first medium, and temperature of the second medium. The valve body is formed integrally with the driving portion for opening and closing the connecting portion in association with the driving portion. The valve device is provided at one of (a) a position downstream of the condensing portion, and (b) a position upstream of the vaporizing portion.

Abstract: A radiator module for commercial motor vehicles, in particular for agricultural tractors, has a support plate fixed to the chassis and at least one coolant radiator fixed to the support plate. The radiator has a radiator block and two coolant tanks oriented at opposite ends of the block with one tank adjacent the support plate and one spaced away form the support plate. In order to increase the cooling performance of the radiator module despite keeping the installation space above the support plate constant it is proposed that the coolant tank near the plate is constructed from two mutually complementing tank parts. The first tank part is assigned to the radiator block and has an encircling flange for pressure sealed attachment of the coolant radiator on the support plate. A second tank part is assigned to the support plate. By dividing the coolant tank into two parts, one on the radiator block and one on the support plate the effective heat sink area of the coolant radiator can be substantially increased.

Abstract: An intercooler system includes an air duct configured to be supplied with outside air, an evaporator, and a heater core of an air-conditioning system being disposed within the air duct. An intercooler is supplied with the outside air from the air duct and configured to cool intake air passing therethrough using the outside air. A valve unit regulates flow of the outside air such that the outside air passes at least one of the evaporator and the heater core and is then supplied to the intercooler. Also, a control unit controls operation of the air-conditioning system and the valve unit.

Abstract: The air-conditioning unit includes an air-conditioning case, a heater, a bypass path bypassing the heater, an air-mixing chamber, an air-mixing door, and an air opening. The air-conditioning unit also includes an auxiliary door arranged in series with the air-mixing door in the bypass path. The auxiliary door is operated between at a first position and at a second position. The auxiliary door in the first position closes the bypass path more than in the second position. The auxiliary door is operated at the first position at least when the air-mixing door opens the bypass path slightly.

Abstract: A system for cooling charge air from a turbo- or supercharger and exhaust gas recirculated from an exhaust gas recirculation valve in an internal combustion engine. The system includes a radiator and parallel charge air and exhaust gas heat exchanger units, the charge air heat exchanger unit having aluminum tubes and fins for air cooling the charge air, and the exhaust gas heat exchanger unit having stainless steel tubes and fins. The charge air heat exchanger and the exhaust gas heat exchanger units are each disposed adjacent the radiator, on the same or opposite sides. Alternatively, there is provided a pair of combined charge air cooler and exhaust gas cooler heat exchanger units, with a first heat exchanger unit having stainless steel tubes and fins, and a second heat exchanger unit having aluminum tubes and fins. The heat exchanger units are disposed on opposites sides of the radiator.

Abstract: An air conditioning apparatus has a blower, a unit case, a cooling heat exchanger and a heating heat exchanger. The heat exchangers are disposed in the unit case such that ends thereof are adjacent to the blower. The unit case has a side opening on its side wall and a tubular part between the end of the heating heat exchanger and a casing of the blower. The tubular part has a communication portion for allowing communication between a hollow space provided therein and a space downstream of the second heat exchanger. The unit case has a passage opening at an end of the tubular part and adjacent to the side opening for allowing the air introduced in the hollow space to flow out from the hollow space. Further, a door is provided in the unit case to open and close the side opening and the communication portion simultaneously.

Abstract: An air conditioning system for use in an over-the-road or off road vehicle provides operation during both engine on and engine off conditions. The system includes a variable speed compressor, a motor, and a controller. The controller receives electric power from the vehicle's electric power generation system when the engine is on to enable operation of the compressor during an engine on condition. When the engine is off, the controller receives electric power from a battery to enable operation of the compressor during the engine off condition.

Abstract: A multiple zoned air conditioning system for providing air conditioning to the interior of an automotive vehicle. The air conditioning system includes a main air conditioning module with a first heat exchanger for cooling and with a second heat exchanger for heating, as well as a multiple zone module. The main air conditioning module creates, in cooperation with the multiple zone module, at least one first air flow conditioned for temperature. The multiple zone module is interchangeably disposed in the main air conditioning module, with the second heat exchanger engaging the multiple zone module so as to allow air flow therethrough, when the multiple zone module is disposed on the main air conditioning module.

Abstract: A roof module (10) for a motor vehicle, with an integrated climate control system (12, 14, 16, 18). Furthermore, the roof module (10) includes a fuel cell system (32, 34, 38). The roof module (10) is preferably a pre-mounted complete motor vehicle roof with bordering modules, preferably with extra integrated functions.

Abstract: A system with an internal combustion engine which has a heat transfer circuit, a fuel cell and a climate control unit which is accommodated in the heat transfer circuit of the internal combustion engine. The system has a heat transfer arrangement for transferring the exhaust heat of the fuel cell to the heat transfer circuit and a bypass for bridging a segment of the heat transfer circuit which runs through the internal combustion engine so that, in the bypassed operating state, an isolated circuit is formed. In stationary operation, this enables an optimized operating mode since the internal combustion engine is no longer heated and the exhaust heat of the fuel cell is fully available for heating purposes.

Abstract: An air-blowing unit includes a blower unit including an irreversible fan, a first blower-side duct connected to an inlet port of the blower unit, a second blower-side duct connected to an air discharge port of the blower unit, a first air opening-side duct including a first air opening, a second air opening-side duct including a second air opening, and an air passage switching device disposed between the blower-side ducts and the air opening-side ducts. The air passage switching device switches air passage connection between the blower-side ducts and the air opening-side ducts.

Abstract: The present invention provides a heat exchange system for a vehicle. The heat exchange system can include a first heat exchange circuit supported by the vehicle and fluidly connecting a condenser, a compressor, an evaporator, and an expansion device, a module removably secured to the vehicle, the module housing a pump, and a second heat exchange circuit fluidly connecting a liquid-to-air heat exchanger, the pump, and the evaporator. The first exchange circuit can be operable to condition a first passenger space, and the second heat exchange circuit can be operable to condition a second passenger space spaced apart from the first passenger space.

Abstract: The invention relates to a heat exchanger (1), in particular for a motor vehicle, having at least one inlet (2) and one outlet for the medium which is to be cooled or heated and/or the medium which provides the cooling or heating action, wherein the inlet (2) is designed such that, upon entering the heat exchanger (1), the flowing medium has imparted to it a movement component in the tangential direction with respect to the preceding normal movement direction and/or with respect to the main movement direction directly adjacent to the inlet. According to the invention, a swirl body (5) is preferably provided in the inlet (2).

Abstract: A console air conditioner comprising an evaporator and a heater is installed in the console space between front seats of a vehicle. Both sides of the air mixing zone where a cool air passageway meets a warm air passageway in the console air conditioner are connected to a pillar duct extending toward the middle pillar of the vehicle, thereby the performance of air conditioning for the rear seats in the vehicle can be accomplished independently and efficiently.

Abstract: The invention relates to an air conditioning unit provided with means for cooling and heating air, including a casing with a plurality of air outlets. At least one heating heat exchanger is provided that in its vertical extension has at least one cold air passage whereby, the one cold air passage is disposed between two heating paths. An evaporator is provided, downstream of which in direction of the air flow the heating heat exchanger is disposed, such that after the heating heat exchanger there is a temperature-layered air flow, the layers of which are wholly or partly assigned directly to the air outlets.

Abstract: A method for operating a cooling system for a fuel cell stack in a vehicle is provided. The method includes the steps of: determining a fan request for a variable speed fan disposed in the cooling system; employing a noise-comfort function to select a fan comfort request; and adjusting a speed of the variable speed fan in response to the fan request; wherein a noise emission by the variable speed fan is militated against. A cooling system for a fuel cell stack in a vehicle that employs the noise-comfort function is also provided.

Abstract: In an air conditioning apparatus for a vehicle, a blower unit is arranged such that air is discharged in a substantially front and rear direction of the vehicle. An evaporator is opposed to an air discharge port of the blower unit and inclined at an angle equal to or greater than 45 degrees with respect to a horizontal plane. The heater core is arranged horizontally above the blower unit and an end of the heater core is adjacent to an upper end of the evaporator. Further, a slide door is provided downstream of the air discharge port to distribute the air toward the evaporator and the heater core. By this arrangement, dimensions of the air conditioning apparatus are reduced with respect to horizontal and vertical directions. Thus, this compact air conditioning apparatus can be installed in a small space such as in a center console or an interior side trim space.

Abstract: The present invention relates to distribution of conditioned air from automotive HVAC units, in particularly, distribution systems having both front and rear components. In particular, the present invention improves the temperature characteristics of the rear floor area of distribution in the cockpit, cab or passenger compartment, in a variety of temperature modes. By providing for a valving or closing off means on a rear distribution door, regulation and adjustment of the stratification and temperature of air reaching the rear, and especially, the rear floor area of the cockpit, cab or passenger compartment, is achieved by blocking or closing off a channel between the heater core area of the HVAC and the distribution system.

Abstract: A vehicle air-conditioning system includes an air-conditioner and an air outlet for opening and closing an opening formed in a rear part of a vehicle body. A control unit causes the air outlet to open and close the opening in accordance with changes in air conditions in a passenger compartment, so as to keep the passenger compartment environmentally good condition.

Abstract: A structure to provide air flow an mixture in an HVAC unit utilizing a separate piece air deflector located within the lower housing of the HVAC unit and ribs to direct airflow, the separate piece air deflector configured to cause air deflection and airflow towards the distribution area of the unit.

Abstract: A method and system for controlling a climate control system on a vehicle after entering a heat soak mode in which the outside air temperature associated with the vehicle is affected by absorption of non-ambient heat includes an ambient temperature sensor for sensing a current ambient temperature outside the vehicle. A controller coupled to the ambient temperature sensor compares the current ambient temperature to a stored ambient temperature representative of the outside air temperature prior to entering the heat soak mode. The controller controls the climate control system using the current ambient temperature if the current ambient temperature is less than the stored ambient temperature. If the current ambient temperature is greater than the stored ambient temperature, the controller determines a heat build up affecting the current ambient temperature and controls the climate control system using the current ambient temperature only upon elimination of the heat build up.

Abstract: When a front-passenger seat occupant detecting sensor indicates absence of an occupant in a front-passenger seat, an air conditioning control ECU adjusts a temperature measurement measured with a non-contacting temperature sensor for measuring a surface temperature of the occupant in the front-passenger seat and controls air conditioning state around the front-passenger seat based on the adjusted temperature measurement associated with the front-passenger seat.

Abstract: The present invention discloses an interface device to control a climate control system for automotive vehicles having at least one first command to drive a heating equipment and/or at least one second command to drive a cooling equipment and/or at least one third command to drive an ambient air flow control equipment, the first and/or second and/or third drive commands only altering the working status of the respective first, second and third equipments by direct control of the user, the device also comprising at least one printed circuit board or the like having means that enable the conversion of the movements of the first and/or second and/or third commands into electrical information visualized on a digital display.

Abstract: An air conditioning system for construction and agricultural machines is disclosed. A third duct portion (37c) for leading the air-conditioning air from an air-conditioning unit (10) is arranged on a rail (9) for fixing an upper windshield (4a) and a lower windshield (4b), and at least a foot air outlet (40) for blowing out the air-conditioning air toward the knees of the occupant is arranged on the third duct portion (37c). Further, the air-conditioning air (warm air) is blown out of the foot air outlet (40) during the heating operation whereby the occupant can feel warmth in the neighborhood of the knees and the thighs. The occupant of the construction and agricultural machines can thus acquire a warm feeling in the neighborhood of the knees and the thighs during a heating operation of the air conditioning.

Abstract: The present invention provides a system for controlling the climate of a hybrid vehicle. The system includes a thermoelectric module, a heat exchanger, a pump, and a valve. The thermoelectric module includes thermoelectric elements powered by electric energy. The thermoelectric elements emit or absorb heat energy based on the polarity of the electrical energy provided. A tube containing coolant runs proximate the thermoelectric elements. To aid in the transfer of heat energy, a blower is provided to generate an air flow across the thermoelectric elements and the tube. The coolant is provided from the thermoelectric module to a heat exchanger that heats or cools the air flow provided to the cabin of the vehicle. The pump and valve are in fluid communication with the heat exchanger and thermoelectric module. The pump pressurizes the coolant flow through the tube and coolant lines. In a cooling mode, the valve is configured to selectively bypass the engine coolant system of the vehicle.

Abstract: A vehicle air conditioner includes an air conditioning case having an air introducing port from which air is introduced in an air introducing direction from a side of a cooling heat exchanger to a space under the cooling heat exchanger. Further, the air conditioning case includes a flow turning portion by which air introduced from the air introducing port is turned and flows through the cooling heat exchanger upwardly, and the cooling heat exchanger is slanted to have an upper end portion and a lower end portion approximately parallel to the air introducing direction. Furthermore, a plate member is arranged in the air conditioning case at a position under the lower end portion of the cooling heat exchanger, and the plate member has a plate surface which crosses with the air introducing direction to reduce a flow speed of air.

Abstract: In a unit case of a vehicle air conditioning apparatus, air mix chamber is not provided. Cooled air cooled by an evaporator and heated air heated by a heater core are directly introduced to a face opening and a foot opening of the case and then mixed in a face duct and a foot duct. The case has a guide for directing a flow of the heated air or the cooled air. The guide, the foot opening and the face opening are arranged such that the amount of heated air passing through the foot opening is larger than that of the cooled air and the amount of cooled air passing through the face opening is larger than that of the heated air in a bi-level mode. Accordingly, a temperature of air blown from a foot outlet into a passenger compartment is different from that of air blown from a face outlet.

Abstract: The present invention relates to a combined cooling/climate control system for motor vehicles for cooling the motor vehicle's electrical and/or electronic components and air conditioning of a passenger compartment of the vehicle, comprising: a main ventilation duct (13); a fan (15) for drawing in air disposed in the main ventilation duct; a heating unit (16) downstream of the fan (15) for selective warming of air, which is to be supplied to the passenger compartment; and for cooling the electrical and/or electronic components with air drawn in by the fan (15), an air supply pipe (20) downstream of the fan (15) and upstream of the heating unit (16) connected to the main ventilation duct (13) and an air discharge pipe (22) upstream of the fan (15) connected to the main ventilation duct (13).

Abstract: The invention relates to a heat exchanger of a plate-type construction having first flow channels for a first medium, each formed by a pair of plates, and having corrugated ribs, around which a second medium flows, arranged between neighboring plate pairs. In order to provide an improved heat exchanger which allows a more compact construction of the plant when used in a heating or air conditioning unit of a motor vehicle, it is proposed that the corrugated ribs and at least one of the neighboring plate pairs form second flow channels for the second medium and the second flow channels have a curved course, so that the second medium undergoes a change of flow direction on flowing through the heat exchanger.

Abstract: A heating unit for a vehicle features a radial fan (100) having a housing (110), which housing has an air inlet (116) and an air exit opening (118). The heating unit has an air-directing device (140) that guides an air flow in a pressure chamber (115) of the housing (110) to the exit opening (118). Arranged in the housing (110) is a radial fan wheel (130) that serves to generate a flow from the air inlet (116) via the pressure chamber (115) to the air exit opening (118). Also provided is an electrical heating element, e.g. a PTC (Positive Temperature Coefficient) heating element (125), that serves to transfer heat to the air flow generated by the fan. Air-directing elements (632, 634, 636, 638) are provided between the exit opening (118) and the heating element (125), in order to generate an air flow having a more uniform (680) velocity distribution.

Abstract: A thermal management system for a vehicle includes a heat exchanger having a thermal energy storage material provided therein, a first coolant loop thermally coupled to an electrochemical storage device located within the first coolant loop and to the heat exchanger, and a second coolant loop thermally coupled to the heat exchanger. The first and second coolant loops are configured to carry distinct thermal energy transfer media. The thermal management system also includes an interface configured to facilitate transfer of heat generated by an internal combustion engine to the heat exchanger via the second coolant loop in order to selectively deliver the heat to the electrochemical storage device. Thermal management methods are also provided.

Abstract: In an air amount control for controlling an air amount to be blown into a vehicle compartment, a water temperature control map in which the air amount is set based on a water temperature of cooling water for the vehicle is stored, and the air amount is determined based on control characteristics of the water temperature control map. The water temperature control map is learned and changed based on a set air amount, and the air amount to be blown into the vehicle compartment is determined based on the learned water temperature control map in a case where the set air amount is changed by a passenger and the water temperature is in a predetermined range.

Abstract: A combined radiator and charge air cooler package includes a radiator having upper and lower portions for cooling engine coolant and a charge air cooler having upper and lower portions for cooling charge air. The upper charge air cooler portion is disposed in overlapping relationship and adjacent to the upper radiator portion, and the lower charge air cooler portion is disposed in overlapping relationship and adjacent to the lower radiator portion. The upper radiator portion and the lower charge air cooler portion are aligned in a first plane, and the lower radiator portion and the upper charge air cooler portion are aligned in a second plane, behind the first plane. Ambient cooling air may flow in series through the upper radiator portion and the upper charge air cooler portion, and also through the lower charge air cooler portion and the lower radiator portion.

Abstract: There is a need for a compact and high capacity HVAC system for a vehicle cab. This need is met by a roof enclosed HVAC system. The system includes a roof upper panel, a roof lower panel, a fresh air duct communicated with a fresh air inlet exposed to an exterior of the cab, a recirculation air duct communicated with a recirculation air inlet exposed to an interior of the cab, and a conditioned air duct communicated with an air outlet exposed to the interior of the cab. An HVAC unit is mounted between the roof upper and lower panels. The HVAC unit includes a fan unit, a heater unit and an evaporator unit. The heater and evaporator units are concentrically arranged around and surrounding the fan unit.

Abstract: A control device for gas is provided with a pivotable flap mounted between side walls of a guide duct. A receiving pocket for the insertion of a drive element (motor) is provided on one of the side walls and is oriented in such a way that, after insertion, the output shaft of the drive element is in engagement with the flap. This receiving pocket may be arranged so that the drive element is inserted coaxially with respect to the pivot axis of the flap or transversely thereto, or if the receiving pocket extends into the interior of the duct, the pivot flap is provided with a corresponding cut-out.

Abstract: An air control device suitable for use in a heating and/or air-conditioning system comprises an air control member having a portion capable of selectively blocking the flow of air in an air passageway, a shaft member connected to the selective air blocking portion and having an axis about which the selective air blocking portion rotates, and a portion located on at least one end of the shaft that comprises a mechanism for inter-engaging with an actuating device for rotation of the shaft member; wherein the shaft end has at least first and second different mechanical configurations, wherein each configuration is capable of selectively interacting with a different type of actuation device.

Abstract: The invention relates to a device for heat exchange, said device comprising a flow device and a collection and/or distribution device connected to the flow device at a connection point. The flow device has a pre-determined length and a flat tubular cross-section, and a fluid under a high pressure, for example an operating pressure of approximately 125 bar, flows through the same. Said flow device has a linear course over the entire length thereof, along a longitudinal axis thereof. The long side of the flat tubular cross-section of the flow device is approximately between 5 mm and 6.1 mm, and is at an angle of approximately 90°, at the connection point, in relation to a main direction of extension of the collection and/or distribution device.

Abstract: The invention relates to a method for estimating a heater-core air discharge temperature of an HVAC system. According to the invention, the method uses a model of the heat exchanger. This heat exchanger efficiency model maps a heat exchanger efficiency to a set of actual operating parameters by generating a heat exchanger efficiency coefficient based on said second set of actual operating parameters.

Abstract: An off-road vehicle includes an engine compartment with an engine disposed therein and a cooling assembly which includes a source of liquid and a cooling location disposed external to the engine compartment for cooling the liquid. One or more heat exchangers is disposed at the cooling location for cooling the liquid, which may include engine coolant, hydraulic fluid or air conditioning coolant. Preferably, the cooling assembly includes a fan which is elevated to minimize the intake of dust and other debris created during operation of the vehicle.

Abstract: In a bulldozer, a radiator module is separated from an engine and is disposed on the rear of the bulldozer. Louver plates on the upper portion of a grill are installed so as to cover the outside of the radiator module and point in a substantially horizontal direction. Louver plates on the lower portion of the grill point diagonally upward.

Abstract: An apparatus for heating a liquid includes a housing having an internal chamber and a rotor disposed in the chamber. The rotor is preferably cylindrical and operates inside a bore provided by the housing without touching, the shape of the bore preferably being parallel with the exterior surface of the rotor, and a series of openings disposed over the rotor surface. At least one internal passageway in the rotor and elements for: pre-heating some or all the incoming fluid in the chamber; priming the chamber initially; cooling certain temperature sensitive components; injecting fluid into a partially evacuated volume; developing a vacuum state during operation expeditiously.

Abstract: An energy saving HVAC system for a passenger compartment of an over the road vehicle comprises a controllable air conditioner system for directing cooled air flow through the passenger compartment. A controllable heater system directs heated air flow through the passenger compartment. A user control panel includes user input devices for manually selecting operating parameters of the HVAC system, one of the user input devices comprising an economy mode selector. A controller is operatively connected to the air conditioner system, the heater system and the user control panel. The controller normally controls the air conditioner system or the heater system in accordance with manually selected operating parameters and, responsive to a user manually selecting the economy mode, overrides the manually selected operating parameters and controls the air conditioner system or the heater system at a preselect energy saving level responsive to the economy mode being selected.

Abstract: A heat exchange portion is configured by arranging a condenser for air conditioning, an EV radiator, and a FC radiator in one plane substantially perpendicular to a direction in which a fuel cell vehicle moves, at a front portion of the fuel cell vehicle, in order of an operating temperature, from an upper position to a lower position. A fan is provided behind the heat exchange portion such that a center thereof is closer to the condenser than to the FC radiator. In addition, a fan shroud is provided, in which plural ram pressure holes are formed in a portion which covers the FC radiator.

Abstract: A method and apparatus for reducing noise levels occurring at a particular frequency in an air distribution apparatus used with an automotive vehicle having an interior compartment. The apparatus includes a noise reduction structure located in the air duct between an inlet end connected to a housing and a discharge end located in the vehicle interior compartment. The noise reduction structure is located a position spaced between the housing and the interior compartment of the automotive vehicle. The particular position of the noise reduction structure is determined based on the frequency of the noise level sought to be reduced. The method includes measuring the frequency of the noise level emitted from the discharge end of the air duct and correspondingly positioning the noise reduction structure at a spacing or distance based on the measured frequency.

Abstract: A thermal management system for a vehicle comprises a radiator and a liquid cooled condenser in fluid communication with the radiator. A liquid coolant circulates through the radiator and the condenser. A refrigerant for an HVAC unit also circulates through the condenser, with the condenser transferring heat from the refrigerant to the liquid coolant. A heat exchanger is disposed within the condenser and is in fluid communication with an engine for circulating an engine oil therebetween. The heat exchanger transfers heat from the engine oil to the liquid coolant within the condenser.