Automotive Components Holdings, LLC

Mehran Shahabi

Vivek Amir Jairazbhoy

LeeAnn Wang

Todd R Barnhart

An automotive HVAC diffuser connects to a blower and a variable blower control (VBC) module having a plurality of cooling fins. An inlet receives air flow from the blower. An outlet is downstream from the inlet. An enclosed passageway is provided between the inlet and the outlet for forming a diffused air stream at the outlet. The enclosed passageway has a plurality of peripheral walls for guiding the air stream between the inlet and the outlet, including a curved outer peripheral wall corresponding to a region with a tendency for a high flow as a result of centrifugal effects. One of the peripheral walls includes a VBC receptacle formed as a depression into the peripheral wall having a substantially flat mounting surface and a first sloped side at an upstream end of the VBC receptacle to shape a portion of the diffused air stream. The flat mounting surface includes a plurality of cooling fin receiving slots arranged to receive the cooling fins, whereby the cooling fins extend into an interior of the diffused air stream.

HVAC diffuser with mounting receptacle for variable blower control

A diffuser for carrying air flow to an evaporator in an air conditioning system of an automotive vehicle includes an inlet and an outlet, a wall extending between the inlet and the outlet, and a guide vane, extending at least partially between the inlet and the outlet, spaced from the wall by a containing a control region whose area ratio changes along a length of the guide vane.

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Ypsilanti, MI, United States of America

Mehran Shahabi