摘要:
An environmental control system, comprising, a first environmental control system pack (20) having a first inlet (40) that receives a first fluid flow from a first air source (50) and a first outlet (48), a first recirculation fan assembly (22) having a first recirculation inlet that receives a first cabin air fluid flow from an aircraft cabin and a first recirculation outlet; and a cabin air sensor unit (30) in fluid communication with the first recirculation outlet, the cabin air sensor unit being arranged to provide a first air quality signal indicative of an air quality of the first cabin air fluid flow to a controller (32); wherein the controller is in communication with the first environmental control system pack, wherein the first outlet provides the first fluid flow to a mixing manifold (28), and wherein the first recirculation outlet provides the first cabin air fluid flow to the mixing manifold; the environmental control system further comprises a second environmental control system pack (24) having a second inlet (80) that receives a second fluid flow from a second air source (90) and a second outlet (88) that provides the second fluid flow to the mixing manifold, and a second recirculation fan assembly (26) having a second recirculation inlet (110) that receives a second cabin air fluid flow from the aircraft cabin (12) and a second recirculation outlet (112) that provides the second cabin air fluid flow to the mixing manifold, wherein the cabin air sensor unit is in fluid communication with the second recirculation outlet; characterized in that the cabin air sensor unit is arranged to provide a second air quality signal indicative of an air quality of the second cabin air fluid flow to the controller, and wherein: the mixing manifold (28) mixes the first fluid flow with the first cabin air fluid flow from the first recirculation fan assembly (22) and also mixes the second fluid flow with the second cabin air fluid flow, and the mixing manifold (28) provides the mixed fluid flows to the cabin (12); when generating the first and second air quality signals, the cabin air sensor unit (30) is in communication with the controller (32) to quantify the concentration level or particle count of impurities/contaminants or determine a level of air quality of the first fluid flow, the first cabin air fluid flow, the second fluid flow, and the second cabin air fluid flow prior to delivery to the cabin (12); and the controller (32) is programmed to, responsive to at least one of the first air quality signal or the second air quality signal being indicative of an air quality less than a threshold, inhibit the fluid flow from the first outlet (48) of the first environmental control system pack (20) or the second outlet (88) of the second environmental control system pack (24).
摘要:
An environmental control system that includes a first environmental control system pack (20), a first recirculation fan assembly (22), and a cabin air sensor unit (30). The first environmental control system pack is arranged to provide conditioned air to an aircraft cabin (12). The first recirculation fan assembly is arranged to recirculate a first cabin air fluid flow back to the aircraft cabin. The cabin air sensor unit is arranged to provide a first air quality signal indicative of an air quality of the first cabin air fluid flow to a controller (32).
摘要:
A method of cooling a component (24;62;72;82;92;102) with a heat exchange device (10) includes pulling air into a central airway (14) in a heat exchange device (10) using a blower (16); directing the air from the blower (16) through a diffuser (20) and across a heat sink base (22), wherein a first component (24) positioned underneath the heat sink base (22) is cooled when the air passes over the heat sink base (22); and directing the air out from the diffuser (20) and across a second component (62;72;82;92;102) to cool the second component (62;72;82;92;102).
摘要:
A method of cooling a component (24;62;72;82;92;102) with a heat exchange device (10) includes pulling air into a central airway (14) in a heat exchange device (10) using a blower (16); directing the air from the blower (16) through a diffuser (20) and across a heat sink base (22), wherein a first component (24) positioned underneath the heat sink base (22) is cooled when the air passes over the heat sink base (22); and directing the air out from the diffuser (20) and across a second component (62;72;82;92;102) to cool the second component (62;72;82;92;102).
摘要:
A laminate composite structure having at least one tubular region (104) and at least one bonded region(105). The structure has a first composite layer, a second composite layer, a cavity, and one or more reinforcing fibers. Each composite layer comprises composite material with a top face and a bottom face opposite the top face. The top face of one is joined to the bottom face of the other along an interlaminar region. The cavity separates the bottom face and the top face to form a tube. The tube has an internal boundary defined by the bottom face and the top face. The reinforcing fibers line the internal boundary and are arranged so that the reinforcing fibers reduce the propensity of the composites layer to separate under internal pressure loading.
摘要:
A fan motor housing including a circumferential motor housing (102) having a radially outer surface (108) and a radially inner surface (110) and defining a primary axis (104) including a first plurality of concentric flow channels (106) disposed between the radially outer surface the radially inner surface, wherein the concentric flow channels extend in an axial direction parallel to the primary axis, a second plurality of concentric flow channels (112) disposed between the radially outer surface and the radially inner surface, extending in an axial direction parallel to the primary axis, wherein the first and second pluralities of concentric flow channel are thermodynamically connected, a first plurality of radial conduits (114) connecting the second plurality of flow channels to the radially inner surface of the motor housing, and a second plurality of radial conduits (116) connecting the radially inner surface of the motor housing to the second plurality of flow channels.
摘要:
A heat exchanger (100) includes a body (101), a plurality of first flow channels (103) defined in the body (101); and a plurality of second flow channels (105) defined in the body. The second flow channels (105) are fluidly isolated from the first flow channels (103). The first flow channels (103) and second flow channels (105) are arranged in a checkerboard pattern.
摘要:
A environmental control system (ECS) for an aircraft includes a primary heat exchanger (220) configured to receive bleed air from a turbine compressor of the aircraft and a secondary heat exchanger (230) having an input configured to receive a flow from the primary heat exchanger (220) and a secondary heat exchanger (230) output. The ECS also includes a thermoelectric condensing device (202) having an input in fluid communication with the output of the secondary heat exchanger (230) and also having a thermoelectric condensing device (202) output.
摘要:
A spot-cooling system including an electroactive polymer actuator (425), an enclosure (210; 410) defining an internal cavity, and a port (250) in the enclosure (210; 410) is described herein. The electroactive polymer actuator (425) may be configured to draw air into the enclosure (210; 410). The electroactive polymer actuator (425) may be configured to force air from the enclosure (210; 410). The electroactive polymer actuator (425) may comprise a corrugated electroactive polymer actuator. The electroactive polymer actuator (425) may comprise a plurality of layered electroactive polymer actuators.