Hamilton Sundstrand Patente

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A locking mechanism (100) comprises a piston element (102) comprising a piston groove (124) extending in an axial direction along a radially outer surface (126) of the piston element (102), a housing (104) comprising a bore (112) for receiving the piston element (102) for reciprocating axial movement between a locked position and an unlocked position, a locking ball (108) received in the piston groove (124) and a locking ring (106) mounted for rotational movement about the piston element (102) between a locking position and an unlocking position, the locking ring (106 comprising a radially inner locking ring groove (143), the locking ring groove (143) having a recess (146) formed in a radially inner surface (144) thereof for receiving the locking ball (108) in the unlocking position of the locking ring (106). The piston groove (124) comprises a first axially extending section (132) and a second axially extending section (134), the radial depth (D1) of the first axially extending section (132) being greater than the radial depth (D2) of the second axially extending section (134). The mechanism (100) is configured such that when the piston element (102) is in its locked position and the locking ring (106) is in its locking position, the radially inner surface (144) of the locking ring groove (143) is in radial alignment with the piston groove (124) such that the locking ball (108) received in the first axially extending section (132) of the piston groove (124) is prevented from moving outwardly in a radial direction an amount sufficient to enter the second axially extending section (134) of the piston groove (124) and when the piston element (102) is in its locked position but the locking ring (106) moves to its unlocking position, the recess (146) in the radially inner surface (144) of the locking ring groove (143) is in radial alignment with the piston groove (124) such that the locking ball (108) received in the first axially extending section (132) of the piston groove (124) can move radially outwardly into the recess (146), thereby allowing the locking ball (108) to enter the second axially extending section (134) of the piston groove (124) and an axial movement of the piston element from its locked to its unlocked position under a force biasing the piston element (102) towards the housing (104).

A system for testing a transient voltage suppressor, TVS, (104) configured to be coupled between a bus (106) and a first ground or line (119) to discharge a voltage surge on the bus to the first ground or line includes a pulse source (110) configured to generate an electrical pulse. The system further includes a transformer (120) having a first side (122) coupled to the pulse source and a second side (124) configured to be coupled to the TVS and configured to transfer the electrical pulse to the TVS and to transfer an at least partial reflection of the electrical pulse from the TVS to the first side. The system also includes a test point (138) coupled to the first side of the transformer and configured to receive the at least partial reflection of the electrical pulse.

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An aircraft environmental control system (ECS) includes a first valve (110) that is adjustable between a plurality of first positions to open or shut-off a bleed air flow that flows from an inlet of the first valve to an outlet of the first valve. A second valve (116) includes an inlet in fluid communication with the first valve outlet, and is adjustable between a plurality of second positions to throttle the bleed air that flows from the inlet of the second valve to an outlet of the second valve. A valve position sensor (125) outputs a position signal indicating a measured position among the plurality of second positions. A controller (150) is in signal communication with the valve position sensor. The controller is configured to determine a primary effective area of the second valve based on the measured position, and to diagnose operation of the first valve based on the primary effective area.

A hydrophilic coating for use with a heat exchanger includes an insolubilizer configured to provide structure or support for the hydrophilic coating. The hydrophilic coating further includes a wetting agent configured to provide wettability for the hydrophilic coating. The hydrophilic coating further includes an antibacterial agent configured to eliminate at least a portion of bacteria that contacts the hydrophilic coating. The hydrophilic coating may further include an antifungal agent configured to eliminate at least a portion of fungi that contacts the hydrophilic coating, the antifungal agent may be different than the antibacterial agent and the insolubilizer.

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A cabin air compressor (CAC) motor cooling flow enhancement cowl includes a cowl body (204) contoured to extend from a CAC motor cooling duct discharge (156) of a ram air outlet header (108). The cowl body includes a backward facing step (206) to form an air dam in a ram air flow path to divert ram system air away from the CAC motor cooling duct discharge. The CAC motor cooling flow enhancement cowl also includes a coupling interface (308) formed at an upstream end of the cowl body to engage with a transition edge (162) of the CAC motor cooling duct discharge.

A temperature sensor (36) for a first fluid senses a temperature of the first fluid downstream of a heat exchanger (28). A supply for a second fluid changes a temperature of the first fluid. The supply for the second fluid passes through the heat exchanger (28). A valve (30) is positioned upstream of the said heat exchanger (28) on the supply for the second fluid, and controls a flow rate of the second fluid diverted into a bypass line (32) compared to a flow rate of the second fluid directed through the heat exchanger (28), with the three-way valve (30) controlled by a control in response to feedback from said temperature sensor (30). The valve (30) changes the respective flow rates delivered into the bypass line (32) and through the said heat exchanger (28) in a non-linear manner with a change in valve position. A manned spaceship is also disclosed.

A system for generating inert gas comprising includes a fuel tank (20) including an inner storage volume (24) containing a fuel. A fuel stabilization chamber (30) has an inner volume (32). The inner volume of said fuel stabilization chamber is arranged in fluid communication with the inner storage volume such that said fuel is movable from the inner storage volume to the inner volume. An inert gas device (62) is operably coupled to the inner volume of the fuel stabilization chamber. Inert gas output from the inert gas device interacts with a fuel in the inner volume to remove dissolved oxygen from the fuel in said inner volume.

A system (100) for dynamically controlling the functionality of control channels (101) in an electrical system includes a plurality of control channels, each operatively connected to at least one state change device (351) connected to an electrical component. Each control channel (101) is operatively connected to at least one adjacent control channel by a control channel communication line (107). Each control channel (101) is configured to store grouping information of the state change device (351). A controller (103) is operatively connected to each control channel (101) such that each control channel can receive the grouping information from the controller (103). The controller (103) is configured to selectively send grouping information to allow each control channel (101) to directly communicate with adjacent control channels within their respective grouping such that each control channel (101) in a grouping functions together in unison when the at least one state change device (351) in a grouping changes state.

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