Dennis E Schmidt, Michael D Hanus: APU troubleshooting system. Hamilton Sundstrand Corporation, Brown Martin Haller & McClain, September 19, 2000: US06122575 (68 worldwide citation)

A system, method, and computer program product assist a technician in troubleshooting an aircraft auxiliary power unit (APU). A portable computer is couplable of download the fault data captured in a memory of the ECU. The fault data corresponds to one or more instances of APU failure. The computer ...

Daih Yeou Chen: Lean-staged pyrospin combustor. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds, December 4, 2007: US07302801 (65 worldwide citation)

A combustor assembly includes a combustor chamber having a primary and intermediate zone that provides for reduced flame temperatures. The combustor assembly includes first and second pluralities of injectors. The first plurality of injectors introduces fuel to a primary zone. A second plurality of ...

George E Wilmot Jr, Gregory M Ott: Integrated thermal management and coolant system for an aircraft. Hamilton Sundstrand Corporation, July 9, 2002: US06415595 (58 worldwide citation)

A thermal management system avoids problems associated with the recirculation of fuel through a fuel tank on an aircraft in a system that includes a fuel reservoir (

Daniel M Saban, Jeffrey Hoobler: Rotor cooling system for synchronous machines with conductive sleeve. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds, April 24, 2007: US07208854 (54 worldwide citation)

A wound field synchronous machine includes direct oil cooling along a conductive sleeve with elongated semi-arcuate shaped channels which alternate with damper bar channels containing tie-rod supports structures. With a reduction in sleeve thickness permitted by the direct cooling, the overall weigh ...

Kent Weber, Keith E Short: Multi-path secondary power system for an aircraft. Hamilton Sundstrand Corporation, Lawrence E Crowe, November 7, 2000: US06142418 (48 worldwide citation)

An improved single engine military aircraft is provided through the use of an improved secondary power system which incorporates an additional accessory drive, and utilizes improved multi-path system architecture together with optimal distribution of accessories to thereby enhance partial operationa ...


Bruce D Beneditz, Russell G Stoneback, Marc A Bouton, Kenneth Spear, John A Dickey: Power distribution assembly with redundant architecture. Hamilton Sundstrand Corporation, Carlson Gaskey & Olds, February 15, 2005: US06856045 (46 worldwide citation)

A power distribution assembly (PDA) includes a plurality of power modules that are installed within a chassis that is mounted to a vehicle, such as an aircraft. The power modules are used to control aircraft systems such as braking, navigation, or temperature control systems. The PDA includes first ...

Tyrone A Johnsen: Cooling of a rotor for a rotary electric machine. Hamilton Sundstrand Corporation, Roger V Feldman, April 27, 2004: US06727609 (44 worldwide citation)

A high-power electrodynamic machine has a relatively elongated rotor. In a preferred generator embodiment, a rotor having a winding formed integral therewith is integral to a hollow shaft mounted within a stator having a plurality of windings. The shaft has an axial end region with an inlet for a co ...

Arnold A Ames, Charles H Gooden, Donald P Krakauskas, Vinod George: Data communication analysis and simulation tool. Hamilton Sundstrand Corporation, Jeffrey J Makeever, November 21, 2000: US06151567 (41 worldwide citation)

A data communication analysis and simulation tool capable of simulating in real time the transmissions and data responses of at least one line replaceable unit communicating on at least one communication bus with at least one line replaceable unit under test, comprising a computer operating under a ...