A temperature control system in an aircraft passenger service unit is disclosed. In embodiments, the system includes a swirl chamber configured to receive an inlet air stream, and a vortex tube configured to receive the inlet air stream from the swirl chamber and separate the inlet air stream into a warmer air stream and a cooler air stream. In embodiments, the system further includes a nozzle configured to direct a temperature-controlled air stream into a passenger space of an aircraft; wherein the nozzle is configured to be selectably adjusted in order to selectively blend the warmer air stream and the cooler air stream in order to generate the temperature-controlled air stream.

An air discharger for discharging an air stream, in particular in a vehicle interior, includes at least one air guide channel and at least one air routing element disposed therein. The routing element being designed as a vane wheel having at least one vane, wherein each of the vanes is formed from at least two segments disposed in succession axially. The segments being able to move at least relative to one another angularly between a position that brings about a “diffuse” mode and a position that brings about a “total air” mode by way of an axially adjustable variable flow cross section of the air guide channel.

An air outlet nozzle, in particular for a motor vehicle, includes: a tube-shaped nozzle body; a first air guide element which is arranged in the tube-shaped nozzle body, and which is in contact with the tube-shaped nozzle body and forms a screw shape; a second air guide element which is arranged in the tube-shaped nozzle body, and which is in contact with the tube-shaped nozzle body and forms a screw shape. The first air guide element and the second air guide element are offset from one another in the tube-shape nozzle body, such that a first airway and a second airway are formed in the tube-shaped nozzle body. A moving adjustment element closes the first airway in a first position, and releases the first airway in a second position.

A temperature control system in an aircraft passenger service unit is disclosed. In embodiments, the system includes a swirl chamber configured to receive an inlet air stream, and a vortex tube configured to receive the inlet air stream from the swirl chamber and separate the inlet air stream into a warmer air stream and a cooler air stream. In embodiments, the system further includes a nozzle configured to direct a temperature-controlled air stream into a passenger space of an aircraft; wherein the nozzle is configured to be selectably adjusted in order to selectively blend the warmer air stream and the cooler air stream in order to generate the temperature-controlled air stream.

A fluid discharge device includes a base portion defining a fluid flow passage and having an opening at a downstream end of the fluid flow passage, and a grill portion disposed to adjust a flow direction of the fluid blown from the opening. The grill portion includes a flow passage forming body defining a main flow passage and an auxiliary flow passage. In the flow passage forming body, the auxiliary flow passage surrounds the main flow passage and the auxiliary flow discharged from the auxiliary flow passage flows outside of the main flow discharged from the main flow passage. The flow passage forming body is configured such that a direction of the auxiliary flow discharged from the auxiliary flow passage corresponds to the direction of the main flow discharged from the main flow passage, when the flow direction of the fluid blown out of the opening is adjusted.

An air discharge device is configured to discharge an air flow. The air discharge device includes a main hole for discharging an air flow as a working air flow, an auxiliary hole provided around the main hole to discharge a support air flow, and a vortex suppression structure configured to suppress development of vortices generated in a velocity boundary layer of the working air flow at a downstream side of an outlet of the main hole. This vortex suppression structure is configured to make a central portion of the thickness of the velocity boundary layer of the working air flow at the downstream side of the outlet of the main hole to be closer to a mainstream of the support air flow, at the downstream side of the outlet of the main hole.

A vehicle interior panel includes a diffuser spanning an air discharge opening. The diffuser has a spiral slot formed therethrough such that changing an axial distance between opposite ends of the slot changes an air flow capacity of the diffuser. The diffuser has an elegant and simplified design and can be made as one piece from a sheet material. Air is discharged from the diffuser radially and substantially equally in all radial directions. The diffuser can also function to provide ambient light from a light source and/or to deliver an air freshening agent to the passenger cabin.

An assembly for introducing air into a passenger compartment of a vehicle is provided. The assembly includes at least three mutually spaced air channels which can be provided with air and each of which has an air outlet. Each air channel is fluidly communicatively connected to the passenger compartment via the air outlets, and an open jet can exit from the outlet. The assembly also includes at least one controller, with which a mass flow of an air flow in each air channel can be controlled. The air outlets are designed and oriented relative to one another such that open jets exiting simultaneously from at least two air outlets can be mixed together in the passenger compartment so as to form a single total air flow. To provide an improved possibility of introducing air into a passenger compartment of a vehicle, the controller is designed to control the mass flow of the air flow in each air channel such that a main flow direction of the total air flow can be spatially varied.

A temperature control system in an aircraft passenger service unit is disclosed. In embodiments, the system includes a swirl chamber configured to receive an inlet air stream, and a vortex tube configured to receive the inlet air stream from the swirl chamber and separate the inlet air stream into a warmer air stream and a cooler air stream. In embodiments, the system further includes a nozzle configured to direct a temperature-controlled air stream into a passenger space of an aircraft; wherein the nozzle is configured to be selectably adjusted in order to selectively blend the warmer air stream and the cooler air stream in order to generate the temperature-controlled air stream.

The air discharge device includes a duct defining: a main flow path through which an air flow passes; and a main hole opened in a flat shape to discharge the air flow as a working air flow toward a downstream from the main flow path. A throttle portion is provided in the duct to reduce a flow path height of the main flow path from an upstream of the air flow toward a downstream of the air flow. A plurality of partitions are arranged to divide the main flow path in a major direction into a pair of side flow paths and at least one center flow path. The plurality of partitions are disposed in the duct such that a flow path width of the center flow path is reduced from the upstream of the air flow toward the downstream of the air flow.