Hamilton Sundstrand Patente

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A system 100 comprising: a gas turbine having a combustion chamber 114 and a turbine 116; a first heat exchanger HX1 configured to receive a first stream of compressed air CA1 and a stream of liquid hydrogen LH, wherein the first heat exchanger HX1 is configured to transfer heat between the first stream of compressed air CA1 and the stream of liquid hydrogen LH to yield a stream of liquid oxygen LO and a stream of gaseous hydrogen GH; a second heat exchanger HX2 configured to heat the stream of liquid oxygen LO to yield a stream of gaseous oxygen GO; and a third heat exchanger HX3 configured to receive a stream of flue gas FG from the turbine 116 and at least one of the stream of gaseous hydrogen GH and the stream of gaseous oxygen GO, wherein the third heat exchanger HX3 is configured to transfer heat between the stream of flue gas FG and the stream of gaseous hydrogen GH and/or the stream of gaseous oxygen GO to superheat the stream of hydrogen and/or the stream of oxygen; wherein the system is configured to direct the stream of hydrogen and the stream of oxygen to the combustion chamber, wherein at least one of the stream of hydrogen and the stream of oxygen is superheated.

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There is provided an electrical power-transfer system (2) for an engine (4) having first and second engine shafts (6, 8), and a method of operating such a system. The system has a planetary gear system (10) comprising a sun gear (18), a ring gear (22), a plurality of planetary gears (20) enmeshed with the sun gear (18) and the ring gear (22), and a carrier (24) supporting the plurality of planetary gears (20), wherein the carrier (24) is configured for connection to be driven by a first engine shaft (6). The system has a first electrical machine (12) connected to be driven by the ring gear (22) to generate electrical power, a second electrical machine (14) connected to drive the sun gear (18), and a third electrical machine (16) configured to receive electrical power generated by the first electrical machine (12) and operable as a motor to drive a second engine shaft (8).

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A hybrid additive manufacturing process is utilized for creating a shrouded rotor with the shrouded rotor (10) having a hub (12) at a radial center, a shroud (16) at a radial outer side, and vanes (14) extending therebetween. The hybrid additive manufacturing process includes forming the shrouded rotor in stages (52, 54, 56), with a first stage being formed by depositing material in an axial direction through a first stage of the hub, machining an outer surface of the first stage of the hub to smooth the outer surface, depositing material on the first stage of the hub in a radial direction through a first stage of the vanes and the shroud, and machining all surfaces of the first stage of the vanes and an inner surface of the first stage of the shroud to smooth the surfaces. Subsequent stages of the shrouded rotor are formed similarly to the first stage.

A coalescing tube bundle elbow (102, 200, 300, 400) for a water collector includes an inlet end (114, 202, 302, 402), an outlet end (120, 206, 306, 406), and a body section (116, 204, 304, 404) fluidly connecting the inlet and outlet ends. The inlet end (114, 202, 302, 402) can receive a fluid flow in an at least partially gaseous state in an incoming direction. The outlet end (120, 206, 306, 406) can discharge the fluid flow in an at least partially liquid state in an outgoing direction. The body section (116, 204, 304, 404) can condense at least a portion of the fluid flow from a gaseous state into a liquid state. The body section (116, 204, 304, 404) includes channels which are defined by channel walls and which extend along the body section (116, 204, 304, 404) from the inlet end (114, 202, 302, 402) to the outlet end (120, 206, 306, 406), and has a curved profile such that the outgoing direction of the fluid flow is not parallel to the incoming direction of the fluid flow.

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A drive system for operating a RAM air turbine, RAT, re-stow pump assembly comprising a pump piston and a cylinder in which the pump piston moves axially in a reciprocating linear motion when driven by the drive system, the drive system comprising: a rotary drive shaft (20); and a linear link member (30) having a first end (32) connected to the rotary drive shaft and a second end (34) arranged to be connected, in use, to the pump piston of the RAT re-stow pump, whereby rotation of the drive shaft (20) is translated to reciprocal linear motion of the piston when connected to the link member, via the link member (30), and wherein the drive shaft (20) is provided with an attachment fitting (22) configured to attach to a rotary power tool, in use, to drive rotation of the drive shaft.

A planar transformer (100) is provided. The planar transformer (100) comprises a stack (140) comprising a plurality of planar windings (141) arranged one above the other, an outer core portion (120) comprising a first plate (122) and a second plate (124), an inner core portion (115) extending between the first plate (122) and the second plate (124), and at least one heat pipe (170). The planar windings (141) are disposed between the first plate (122) and the second plate (124). Each planar winding of the plurality of planar windings (141), the first plate (122) and the second plate (124) extend substantially parallel to each other. The at least one heat pipe (170) extends substantially parallel to the plurality of planar windings (141) and is disposed in a space formed between a planar winding of the plurality of planar windings (141) and any of: another planar winding of the plurality of planar windings (141), the first plate (122), or the second plate (124).

An environmental control system includes a component having a component inlet (36) and a component outlet (38) and a flow path fluidly connected to the component inlet and the component outlet. The flow path includes a turn upstream from the component inlet. At least one flow diverter element (100) is arranged within the flow path between the turn and the component outlet. The at least one flow diverter element is positioned to uniformly distribute a flow across the component inlet.

A servo valve (100) comprises a first spool (108a) extending along a first spool axis (110a), a second spool (108b) extending along a second spool axis (110b), a first piezoelectric actuator (112a), and a second piezoelectric actuator (112b). The first piezoelectric actuator (112a) is operatively connected to the first spool (108a) for translating the first spool (108a) in response to a voltage applied thereto. The second piezoelectric actuator (112b) is operatively connected to the second spool (108b) for translating the second spool (108b) in response to a voltage applied thereto.

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An environmental control system of a vehicle includes a compressor (28) having a compressor inlet configured to receive a first medium and a compressor outlet. A compressed first medium is provided at the compressor outlet. A conduit (68) is configured to receive a second medium and a heat exchanger (52) is mounted to the compressor. The heat exchanger (52) is fluidly connected to a portion of the compressor and to the conduit.

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A manifold having a borehole (190); and a repairable thread insert assembly, including: a shaft (230) inserted in the borehole, the shaft defining: first and second end surfaces (240, 250) spaced apart from each other, wherein the shaft is shorter than the borehole; a threaded through hole extending between the end surfaces; and an outer surface extending between the end surfaces and defining an outer boundary shape that is complementary to the shape of the borehole; an elastic ring (280); an assembly fastener having a head that compresses the elastic ring between the head (300) of the assembly fastener (290) and the first end surface of the shaft such that the outer surface of the ring is pressed against the borehole, whereby the shaft is locked within the borehole.

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