Abstract: An arrangement for sealing functional unit interfaces includes a functional unit, an interface, and a sealing element. The interface has a first main surface, a second main surface, and an opening. The second main surface has a clamping section enclosing the opening. The functional unit has a front face with a counter-clamping section opposite the clamping section. The sealing element has a sealing body and a support element at least partially arranged within the sealing body. The sealing body has a first section clamped between the clamping section and the counter-clamping section. The opening is closed by a second section of sealing body, which is at least partially arranged between the opening and the front face. The support element is partially arranged in the first section and partially in the second section of the sealing body. The support element and the sealing body consist of different materials.

Abstract: An arrangement for sealing functional unit interfaces includes a functional unit, an interface, and a sealing element. The interface has a first main surface, a second main surface, and an opening. The second main surface has a clamping section enclosing the opening. The functional unit has a front face with a counter-clamping section opposite the clamping section. The sealing element has a sealing body and a support element at least partially arranged within the sealing body. The sealing body has a first section clamped between the clamping section and the counter-clamping section. The opening is closed by a second section of sealing body, which is at least partially arranged between the opening and the front face. The support element is partially arranged in the first section and partially in the second section of the sealing body. The support element and the sealing body consist of different materials.

Abstract: A HVAC assembly includes a temperature mixing valve that comprises a shaft, an upper paddle, a lower paddle, and a yielding means. The upper paddle and the lower paddle attach to the shaft. The yielding means applies a force to keep the upper paddle sealed to prevent cold air in a cold air inlet from entering a mixing zone and the lower paddle moves away from a shared sealing boundary over a predetermined angle of rotation before the upper paddle initially moves to allow cold air to enter the mixing zone. Movement of the lower paddle away from the shared sealing boundary allows cold air to enter a hot air inlet and admix with hot air to mix in the mixing zone to produce non-stratified air.

Abstract: An independent mixing valve sub-assembly which includes a casing defining a cold bias inlet, a hot bias inlet and a second zone inlet and a mechanism for mechanically attaching the casing to the housing of a HVAC module with the cold bias inlet, the hot bias inlet and the second zone inlet of the mixing valve sub-assembly in sealing engagement with a cold bias outlet, a hot bias outlet, and a second zone outlet of a HVAC module, respectively. The mixing valve sub-assembly may provide one or more streams of temperature-controlled air. Accordingly, different mixing valve sub-assemblies may be attached to one universal HVAC module to provide varying numbers of temperature zones.

Abstract: A HVAC assembly includes a temperature mixing valve that comprises a shaft, an upper paddle, a lower paddle, and a yielding means. The upper paddle and the lower paddle attach to the shaft. The yielding means applies a force to keep the upper paddle sealed to prevent cold air in a cold air inlet from entering a mixing zone and the lower paddle moves away from a shared sealing boundary over a predetermined angle of rotation before the upper paddle initially moves to allow cold air to enter the mixing zone. Movement of the lower paddle away from the shared sealing boundary allows cold air to enter a hot air inlet and admix with hot air to mix in the mixing zone to produce non-stratified air.

Abstract: An HVAC housing assembly includes a novel structure to aid the mixing of hot and cold air downstream of the evaporator and heater core. One or more variable nozzles are carried for displacement with the temperature door for accelerating some of the cold air stream through an internal housing opening and varying the cold air stream impingement angle with the hot air stream at their point of confluence to establish secondary mixing sites and substantially improving the resulting heat transfer coefficient.

Abstract: A heating and air-conditioning (HVAC) module for an automotive vehicle wherein the electric motor for the blower includes a double walled motor housing for noise abatement. The housing defines a cup-shaped inner casing with an open end and a closed end. An outer casing surrounds and is integrally connected to the inner casing by an integral flange. The outer casing extends upwardly from the flange to a rim to define a space surrounding the inner casing. An end cap includes a groove to engage the rim and extends over and in spaced relationship to the closed end of the inner casing. The end cap is held in place by fasteners threadedly engaging posts extending upwardly from the flange, with one of the posts extending upwardly from a female electrical connector that extends radially between the outer casing and the inner casing for supplying electrical power to the motor.

Abstract: A centrifugal blower impeller includes a central hub and a plurality of impeller blades. The central hub includes a conical section and an outer edge. The conical section is centered with respect to a center axis and extends from the center axis towards the outer edge. The plurality of impeller blades includes first and second ends. The conical section is coupled to the first ends of the impeller blades which extend axially upward from the first ends towards the second ends. The centrifugal blower impeller also includes a rim which has a generally circular shape and is connected to the second ends of the impeller blades.

Abstract: An electrical resistor assembly is affixed to a blower casing of a heating, venting, and air conditioning blower motor for resisting the flow of electricity to the blower motor from an electrical circuit. The assembly includes a heat dissipater for dissipating heat generated by electrical current flowing through the circuit. A connector connects the assembly to the electrical circuit. A housing contains the dissipater and the connector. The housing includes at least one catch for fixedly attaching the assembly to the casing and includes at least one break-away element for providing access to the catch. A seal circumscribes the housing including the break-away elements for providing a leak proof mating surface between the assembly and the casing.

Abstract: A centrifugal blower impeller includes a central hub and a plurality of impeller blades. The central hub includes a conical section and an outer edge. The conical section is centered with respect to a center axis and extends from the center axis towards the outer edge. The plurality of impeller blades includes first and second ends. The conical section is coupled to the first ends of the impeller blades which extend axially upward from the first ends towards the second ends. The centrifugal blower impeller also includes a rim which has a generally circular shape and is connected to the second ends of the impeller blades.

Abstract: A heating, ventilating, and air conditioning (HVAC) assembly for a motor vehicle includes an evaporator core for cooling air and a heater core for heating air. A heater casing of the HVAC assembly surrounds the heater core. A drain portion of the HVAC assembly extends from the heater casing and includes a partition. The partition defines two basins in the drain portion for separate drainage of evaporator condensate generated at the evaporator core and liquids from the heater core.

Abstract: A casing assembly for a blower motor of a heating, venting, and air conditioning system of a motor vehicle includes a fan chamber for housing a blower fan and a motor chamber for housing the blower motor. An air conduit molded integrally with the assembly channels air from the fan chamber to the motor chamber for cooling the motor. A panel connects the fan chamber to the motor chamber. The panel includes a groove circumscribing the motor chamber for pierceable separating the motor chamber from the assembly to service the motor and the fan. The assembly further includes a band for reconnecting the separated motor chamber to the assembly after servicing the motor.