Vehicular ventilation module for use with a vehicular HVAC system
First Claim
1. A vehicular ventilation module comprising:
- a return air duct having a return air inlet adapted to draw air from an interior of a vehicle and a return air outlet downstream of the return air inlet, the return air outlet configured to couple with, and provide air to, an HVAC system of the vehicle;
a fresh air duct having a fresh air inlet adapted to draw air from an exterior of a vehicle and a fresh air outlet downstream of the fresh air inlet, the fresh air outlet adapted to exhaust air to the exterior of the vehicle;
a heat exchanger thermally coupled to the return air duct and the fresh air duct, wherein the heat exchanger is upstream of the return air outlet and the fresh air outlet, and downstream of the return air inlet and the fresh air inlet;
a first door joining an upstream portion of the return air duct upstream of the heat exchanger and an upstream portion of the fresh air duct upstream of the heat exchanger;
wherein the first door is operable to selectively open to allow air to pass between the fresh air duct and the return air duct; and
control circuitry configured to operate the vehicular ventilation module in a first mode of operation, including having the first door open, whereby a first portion of air received through the fresh air inlet is drawn into the return air duct and drawn through the heat exchanger in the return air duct, and a second portion of the air received through the fresh air inlet is drawn through the heat exchanger in the fresh air duct.
2 Assignments
0 Petitions
Accused Products
Abstract
The disclosed embodiments include a vehicular ventilation module having control circuitry, a return air duct, a fresh air duct, a heat exchanger, and a door joining an upstream portion of the return air duct upstream of the heat exchanger and an upstream portion of the fresh air duct upstream of the heat exchanger. The fresh air duct has an air inlet and an air outlet downstream of the air inlet. The heat exchanger is thermally coupled to the return air duct upstream of the return air outlet and to the fresh air duct downstream of the return air inlet. The door selectively opens to enable air to pass between the fresh air duct and the return air duct. The control circuitry is configured to operate in a first mode of operation, including having the door open. The return air outlet is configured to provide air to the HVAC system.
241 Citations
18 Claims
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1. A vehicular ventilation module comprising:
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a return air duct having a return air inlet adapted to draw air from an interior of a vehicle and a return air outlet downstream of the return air inlet, the return air outlet configured to couple with, and provide air to, an HVAC system of the vehicle; a fresh air duct having a fresh air inlet adapted to draw air from an exterior of a vehicle and a fresh air outlet downstream of the fresh air inlet, the fresh air outlet adapted to exhaust air to the exterior of the vehicle; a heat exchanger thermally coupled to the return air duct and the fresh air duct, wherein the heat exchanger is upstream of the return air outlet and the fresh air outlet, and downstream of the return air inlet and the fresh air inlet; a first door joining an upstream portion of the return air duct upstream of the heat exchanger and an upstream portion of the fresh air duct upstream of the heat exchanger; wherein the first door is operable to selectively open to allow air to pass between the fresh air duct and the return air duct; and control circuitry configured to operate the vehicular ventilation module in a first mode of operation, including having the first door open, whereby a first portion of air received through the fresh air inlet is drawn into the return air duct and drawn through the heat exchanger in the return air duct, and a second portion of the air received through the fresh air inlet is drawn through the heat exchanger in the fresh air duct. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification