Ventilation systems and methods for internal cabins of vehicles

A method comprising:

• fluidly coupling a seat duct within or on a rear of a backrest of a seat assembly to a first outlet port of an air delivery manifold underneath the seat assembly, wherein the seat duct downwardly extends from the backrest, wherein said fluidly coupling comprises connecting one of a plug or a socket of the seat duct to the other of the plug or the like of the first outlet port;
• delivering air to one or more air outlets of the seat assembly via the air delivery manifold;
• disposing one or more return air grills above the seat assembly;
• upwardly drawing the air from a breathing space associated with the seat assembly into the one or more return air grills;
• receiving the air with an air supply;
• drawing the air into a supply duct that is fluidly coupled to the air supply and the air delivery manifold;
• providing the air to the air delivery manifold from the supply duct;
• and
• disposing an ultraviolet (UV) disinfection sub-system on or within the supply duct upstream from the air delivery manifold, wherein UV light emitters of the UV disinfection sub-system emit UV light into the air, and wherein said disposing the UV disinfection sub-system comprises disposing the UV light emitters along a length of the supply duct.

A system comprising:

• a seat assembly configured to be supported on a top surface of a floor within an interior cabin, wherein the seat assembly includes a backrest, a headrest, and a seat duct fluidly coupled to one or more air outlets, wherein the seat duct includes one of a plug or a socket, wherein the seat duct is within or on a rear of the backrest, and wherein the seat duct downwardly extends from the backrest;
• an air delivery manifold configured to be below the floor underneath the seat assembly, wherein the air delivery manifold comprises a first outlet port including the other of the plug or the socket, wherein the plug connects to the socket to fluidly connect the seat duct to the first outlet port, and wherein air is delivered to the one or more air outlets via the air delivery manifold;
• an air supply that receives the air;
• a supply duct fluidly coupled to the air supply and the air delivery manifold, wherein the air is drawn into the supply duct from the air supply and provided to the air delivery manifold from the supply duct;
• one or more fans disposed within the supply duct;
• an air conditioning sub-system disposed on or within the supply duct upstream from the air delivery manifold;
• an ultraviolet (UV) disinfection sub-system disposed on or within the supply duct upstream from the air delivery manifold, wherein the UV disinfection sub-system comprises UV light emitters configured to emit UV light into the air, and wherein the UV light emitters are disposed along a length of the supply duct;
• and
• one or more return air grills above the seat assembly, wherein the air is upwardly drawn from a breathing space associated with the seat assembly into the one or more return air grills.

A system comprising:

• a seat assembly comprising a backrest, a headrest, and a seat duct fluidly coupled to one or more air outlets, wherein the seat duct includes one of a plug or a socket, wherein the seat duct is within or on a rear of the backrest, wherein the seat duct downwardly extends from the backrest, wherein at least a portion of the seat duct extends into at least a portion of one or both of the backrest or the headrest of the seat assembly, wherein the headrest comprises a left wing having left air outlets, and a right wing having right air outlets, wherein the one or more air outlets comprise the left air outlets and the right air outlets, and wherein the seat duct comprises:
• a main segment directly coupled to the first outlet port;
• a branching segment disposed inside of the backrest, wherein the main segment fluidly connects to the branching segment;
• a left segment fluidly connected to the branching segment and the left air outlets;
• and
• a right segment fluidly connected to the branching segment and the right air outlets;
• an air delivery manifold underneath the seat assembly, wherein the air delivery manifold comprises a first outlet port including the other of the plug or the socket, wherein the plug connects to the socket to fluidly connect the seat duct to the first outlet port, and wherein air is to be delivered to the one or more air outlets via the air delivery manifold;
• an air supply that receives the air;
• a supply duct fluidly coupled to the air supply and the air delivery manifold, wherein the air is drawn into the supply duct from the air supply and provided to the air delivery manifold from the supply duct;
• and
• an ultraviolet (UV) disinfection sub-system disposed on or within the supply duct, wherein the UV disinfection sub-system comprises UV light emitters configured to emit UV light into the air, and wherein the UV light emitters are disposed along a length of the supply duct.