An aspirator system for inflating an inflatable evacuation device includes an aspirator body having a plurality of flapper doors configured to open to allow intake of atmospheric gas. The aspirator system also includes an aspirator barrel connecting the aspirator body to the inflatable evacuation device, having connected inflation chambers wrapping around a circumference of the aspirator barrel and arranged along a length of the aspirator barrel, and being configured to provide an aspirator barrel chamber for guiding the atmospheric gas to the inflatable evacuation device when the aspirator barrel is inflated. The aspirator system also includes a showerhead nozzle connected to the connected inflation chambers, configured to direct high-pressure gas to inflate the aspirator barrel and compel intake of atmospheric gas through the plurality of flapper doors, to inflate the inflatable evacuation device.

An actuator for a separator for separating contaminants from a fluid stream which includes entrained contaminants. The actuator is arranged to move along an actuator axis to adjust an open cross-sectional area of at least one aperture of the separator, and comprises a flexible diaphragm, and a support assembly for the flexible diaphragm. The support assembly is movable along the actuator axis carrying the flexible diaphragm and has an upper support member mounted on a lower support member. A portion of the flexible diaphragm is located between the upper and lower support members. The lower support member comprises an axially extending support portion coupled to a radially extending support portion. The upper support member comprises a diaphragm anti-inversion feature coupled to a radially extending support portion. The diaphragm anti-inversion feature extends such that it axially overlaps at least part of the axially extending support portion of the lower support member.

An aspirator for an inflatable assembly may comprise a housing and an inlet flap biased away from an interior of the housing. A pressure relief flap may be biased toward the interior of the housing. A manifold may be located in the interior of the housing and configured to output a primary gas flow toward an outlet of the housing. A nozzle may be fluidly coupled to the manifold. The nozzle may be configured to output the primary gas flow to the manifold.

The invention relates to a Coanda effect flow booster (10) for inducing a boosted flow of gas, comprising: —a main air circulation pipeline (14), —at least one injection opening that opens into the main pipeline (14), —a plurality of openings for supplying compressed motive gas, each opening configured to be connected to a source of compressed motive gas in order to supply the at least one injection opening with compressed motive gas, —at least one distribution pipeline connecting the plurality of supply openings to the at least one injection opening, —a booster profile (48) at least partially defining the at least one injection opening and forming a convex surface configured to create a Coanda effect in a flow of compressed motive gas injected through the at least one injection opening.

The invention relates to a Coanda effect flow booster (10) for inducing a boosted flow of gas, comprising: —a main air circulation pipeline (14), —at least one injection opening that opens into the main pipeline (14), —a plurality of openings for supplying compressed motive gas, each opening configured to be connected to a source of compressed motive gas in order to supply the at least one injection opening with compressed motive gas, —at least one distribution pipeline connecting the plurality of supply openings to the at least one injection opening, —a booster profile (48) at least partially defining the at least one injection opening and forming a convex surface configured to create a Coanda effect in a flow of compressed motive gas injected through the at least one injection opening.

An aspirator assembly for inflating an emergency slide is disclosed. The aspirator assembly includes a bell housing, a mixing chamber, and a nozzle assembly. The bell housing includes a ring defining an inlet port at which a check valve is located and into which ambient air can flow. The mixing chamber has an outlet port, The nozzle assembly is located in the mixing chamber and includes plural passageway sections defining concentric rings and cross bars. The passageway sections include internal passageways in communication with plural nozzle jets through which a compressed air is introduced into the mixing chamber to mix with the ambient air. The passageway sections are of an airfoil shape cross-section having a rounded leading end directed towards the inlet port and a trailing end is directed toward the outlet port to reduce air turbulence within the mixing chamber.

An aspirator assembly for inflating an emergency slide is disclosed. The aspirator assembly includes a bell housing, a mixing chamber, and a nozzle assembly. The bell housing includes a ring defining an inlet port at which a check valve is located and into which ambient air can flow. The mixing chamber has an outlet port, The nozzle assembly is located in the mixing chamber and includes plural passageway sections defining concentric rings and cross bars. The passageway sections include internal passageways in communication with plural nozzle jets through which a compressed air is introduced into the mixing chamber to mix with the ambient air. The passageway sections are of an airfoil shape cross-section having a rounded leading end directed towards the inlet port and a trailing end is directed toward the outlet port to reduce air turbulence within the mixing chamber.

An aspirator assembly for inflating an emergency slide. The aspirator assembly includes a bell housing, a mixing chamber, and a nozzle assembly. The bell housing includes a ring defining an inlet port at which a check valve is located and into which ambient air can flow. The mixing chamber has an outlet port, The nozzle assembly is located in the mixing chamber and includes plural passageway sections defining concentric rings and cross bars. The passageway sections include internal passageways in communication with plural nozzle jets through which a compressed air is introduced into the mixing chamber to mix with the ambient air. The passageway sections are of an airfoil shape cross-section having a rounded leading end directed towards the inlet port and a trailing end is directed toward the outlet port to reduce air turbulence within the mixing chamber.

An aspirator assembly for inflating an emergency slide. The aspirator assembly includes a bell housing, a mixing chamber, and a nozzle assembly. The bell housing includes a ring defining an inlet port at which a check valve is located and into which ambient air can flow. The mixing chamber has an outlet port, The nozzle assembly is located in the mixing chamber and includes plural passageway sections defining concentric rings and cross bars. The passageway sections include internal passageways in communication with plural nozzle jets through which a compressed air is introduced into the mixing chamber to mix with the ambient air. The passageway sections are of an airfoil shape cross-section having a rounded leading end directed towards the inlet port and a trailing end is directed toward the outlet port to reduce air turbulence within the mixing chamber.

An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.