Aircraft galley with air-through carts
View Patent ↗An apparatus for air-through cooling of aircraft galley food carts includes one or more chilled galley food cart bays and one or more galley chiller air supply and return ducting assemblies including a supply airflow duct and a bifurcated return airflow duct. Airflow balance baffles may be placed at the air return outlet portions and the supply airflow duct inlet portion, and interfaces between galley food carts and supply outlet ports and return inlet ports resilient may include resilient or insulated seals, and spring loaded sealing flaps opened by contact with a portion of a galley food cart.
1. An apparatus for air-through cooling of aircraft galley food carts, comprising:
a chilled galley food cart bay having a front portion and a rear portion, said chilled galley food cart bay being configured to removably receive a suitable aircraft galley food cart at said front portion of the chilled galley food cart bay; and
a galley chiller air supply and return ducting assembly disposed at said rear portion of said chilled galley food cart bay, said galley chiller air supply and return ducting assembly being configured to be removably connected to a single galley food cart received in said chilled galley food cart bay, said air supply and return ducting assembly including
a supply airflow duct including a supply airflow duct inlet portion configured to receive a chilled supply airflow from a remote chiller unit, and a supply airflow duct outlet portion corresponding to the single galley food cart, the supply airflow duct outlet portion configured to supply the chilled supply airflow to the single galley food cart upon coupling the single galley food cart to the galley chiller air supply and return ducting assembly, and
a bifurcated return airflow duct including
an air return inlet portion corresponding to the single galley food cart, the air return inlet portion configured to receive a return airflow from the single aircraft galley food cart upon coupling the single galley food cart to the galley chiller air supply and return ducting assembly, and
a pair of bifurcated return airflow duct portions extending from said air return inlet portion and passing on opposing sides of said supply airflow duct, said pair of bifurcated return airflow duct portions including a pair of air return outlet portions configured to deliver the return airflow to the air chiller for recooling.
2. The apparatus of claim 1 , wherein said supply airflow duct and said bifurcated return airflow duct are internally insulated.
3. The apparatus of claim 1 , further comprising an air supply work deck plenum configured to supply the chilled supply airflow, and a supply air duct connection adapter connected between said air supply work deck plenum and said supply airflow duct inlet portion.
4. The apparatus of claim 1 , further comprising flow airflow balance baffles placed at the air return outlet portions and the supply airflow duct inlet portion, respectively.
5. The apparatus of claim 1 , wherein said chilled galley food cart bay comprises a plurality of said galley chiller air supply and return ducting assemblies and is configured to removably receive a plurality of galley food carts.
6. The apparatus of claim 5 , further comprising a return airflow duct plenum configured to interface with said plurality of return ducting assemblies.
7. The apparatus of claim 5 , further comprising a return airflow duct plenum configured to interface with bifurcated air return outlet portions of said plurality of said galley chiller air supply and return ducting assemblies.
8. The apparatus of claim 1 , wherein said supply airflow duct outlet portion is fitted with a resilient seal.
9. The apparatus of claim 8 , wherein said resilient seal comprises a double walled silicone bellows.
10. The apparatus of claim 8 , wherein said supply airflow duct outlet portion and said air return inlet portion each include a spring loaded sealing flap biased outwardly by a flap closure spring to a closed position, wherein said spring loaded sealing flap is configured to seal against an aperture seal of the supply airflow duct outlet portion and the air return inlet portion, respectively, and is moveable inwardly to an open position by inward pressure against a sliding push actuator connected to the spring loaded sealing flap and extending outwardly toward the front portion of the chilled galley food cart bay from the spring loaded sealing flap and configured to be pushed inwardly to open the spring loaded sealing flap by contact with a portion the single galley food cart, and wherein said sliding push actuator extends outwardly towards a front portion of the chilled galley food cart bay through the resilient seal.
11. The apparatus of claim 1 , wherein said air return inlet portion is fitted with a resilient seal.
12. The apparatus of claim 11 , wherein said resilient seal comprises a double walled silicone bellows.
13. The apparatus of claim 1 , wherein said supply airflow duct outlet portion is fitted with an insulated seal.
14. The apparatus of claim 13 , wherein said insulated seal comprises an impregnated silicone foam seal.
15. The apparatus of claim 13 , wherein said insulated seal comprises a water impermeable flexible cellular foam collar at least partially impregnated with a chemical agent.
16. The apparatus of claim 13 , wherein said supply airflow duct outlet portion and said air return inlet portion each include a spring loaded sealing flap biased outwardly by a flap closure spring to a closed position, wherein said spring loaded sealing flap is configured to seal against an aperture seal of the supply airflow duct outlet portion and the air return inlet portion, respectively, and is moveable inwardly to an open position by inward pressure against a sliding push actuator connected to the spring loaded sealing flap and extending outwardly toward the front portion of the chilled galley food cart bay from the spring loaded sealing flap and configured to be pushed inwardly to open the spring loaded sealing flap by contact with a portion the single galley food cart, and wherein said sliding push actuator extends outwardly towards a front portion of the chilled galley food cart bay through the insulated seal.
17. The apparatus of claim 1 , wherein said air return inlet portion is fitted with an insulated seal.
18. The apparatus of claim 17 , wherein said insulated seal comprises an impregnated silicone foam seal.
19. The apparatus of claim 17 , wherein said insulated seal comprises a water impermeable flexible cellular foam collar at least partially impregnated with a chemical agent.
20. The apparatus of claim 1 , wherein said supply airflow duct outlet portion and said air return inlet portion each include a spring loaded sealing flap biased outwardly by a flap closure spring to a closed position, wherein said spring loaded sealing flap is configured to seal against an aperture seal of the supply airflow duct outlet portion and the air return inlet portion, respectively, and is moveable inwardly to an open position by inward pressure against a sliding push actuator connected to the spring loaded sealing flap and extending outwardly toward the front portion of the chilled galley food cart bay from the spring loaded sealing flap and configured to be pushed inwardly to open the spring loaded sealing flap by contact with a portion of the single galley food cart.