A fragrance delivery unit 12 for a vehicle comprises: a housing (20, figure 13A) having a housing inlet (27, figure 10) to receive a flow of air and a housing outlet 28 to deliver a fragrance-entrained flow of air. A fragrance storage compartment 22 is received, ideally movably, within the housing and may hold at least one fragrance cartridge 24 in use. A fragrance chamber 70 is located between the housing inlet and the housing outlet, and a fragrance delivery mechanism 36 comprising an actuator is configured to open and close the fragrance chamber to selectively provide fluid communication between the chamber and the housing inlet and/or housing outlet. The actuator ideally comprises a rotary motor (72, figure 10) that drives an output shaft 74 having a cam surface 76, whereby a cam follower 92 engages with the surface to urge a valve shaft (88, figure 13B) extending through the fragrance chamber and having inlet and outlet valve members 80a,80b on opposing ends thereof to open/close a respective fragrance chamber inlet 71a and outlet 71b. The fragrance delivery mechanism may include a conical spring 82 to bias the valve members to close the fragrance chamber.
Fragrance delivery unit
2025-05-21
Patent
Electronic Resource
English
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |