Hamilton Sundstrand Corporation

John Huss

Debabrata Pal

Frank Z Feng

Mark W Metzler

Eric Alan Carter

Mustansir Kheraluwala

Waleed M Said

Huazhen Chai

Dwight D Schmitt

Steven Schwitters

Robert C Cooney

John Horowy

Mark Hamilton Severson

Donal E Baker

Ernest Thompson

Harry Huazhen Chai

Curtis B White

Clifford G Thiel

William D Sherman

Deron J Staas

Jamal Shafii

Mark F Stunkel

Joseph Sukkar

Dirk Derr

Kandy Elaine Spahr

Joseph A Sukkar

A variable speed, constant frequency (VSCF) generator system is provided and includes a generator portion, a first cooling circuit and a second cooling circuit. The generator portion includes a generator, electronics configured to control operations of the generator and a housing to house the generator and the electronics. The first cooling circuit is provided such that first fluid exiting the generator passes through a first cooling element prior to returning to the generator. The second cooling circuit is provided such that second fluid exiting the electronics passes through a second cooling element prior to being pumped back toward the electronics.

Variable speed constant frequency (VSCF) generator system

A magnetic assembly includes a winding and a housing disposed about the winding. The housing includes an interior surface contoured to conform to the winding to facilitate heat transfer between the winding and the housing. A method of manufacturing a magnetic assembly includes forming a contoured interior surface on a housing and assembling a winding into the housing such that the interior surface of the housing conforms to the winding to facilitate heat transfer between the winding and the housing.

Heat transfer in magnetic assemblies

An inductor damper circuit includes a toroidal inductor having an inductor coil and an inductor housing, and a resistive element configured around a periphery of the inductor coil and having one end connected to the toroidal inductor, where the resistive element is printed on a flexible substrate and configured between the inductor coil and the inductor housing, and the resistive element is integrated with the toroidal inductor.

Integration of inductor and damper for power filters

A system for protecting electronics includes a printed wiring assembly (PWA) having a surface with at least one electronic component. The system also includes a water resistant film configured to be used as a conformal coating on the PWA and further configured to be placed on the surface of the PWA and to shrink about the at least one electronic component.

Plastic film/sheet as replacement for typical conformal coatings

According to an aspect, an inductor damper circuit includes a shared magnetic core, a primary winding, and a secondary winding. The primary winding includes an inductor winding of a first wire gauge wound about the shared magnetic core. The secondary winding includes a resistive damper winding of a second wire gauge that is less than the first wire gauge and wound about the shared magnetic core in contactless magnetic coupling with the primary winding.

Magnetically coupled contactless damper

A power filter arrangement includes a toroidal package having a toroid and a resistive element. The resistive element is disposed about an outer circumference of the toroid and is joined to the toroid. The resistive element is wound about the toroid. The resistive element is provided with a first resistive pattern having an even number of total turns.

Power filter arrangement having a toroidal inductor package

An immersion cooling arrangement includes a housing containing a liquid coolant. An electrical device is submerged within the liquid coolant. A printed wiring board is seated on the housing and separates the coolant from the environment external to the housing to provide penetration-free electrical communication between a power source and the electrical device.

Immersion cooling arrangements

A dual-input 18-pulse autotransformer rectifier unit for more electric aircraft AC-DC converter uses an autotransformer with a nine-phase output to condition AC power prior to DC rectifying the AC power.

Dual-input 18-pulse autotransformer rectifier unit for an aircraft AC-DC converter

A dual-input nine-phase autotransformer converts first and second three-phase AC inputs to a nine-phase AC output. The autotransformer includes input terminals for connection to a first three-phase AC input and a second three-phase AC input smaller than the first three-phase AC input. The autotransformer includes a first plurality of coils, a second plurality, and a third plurality of coils wound on respective phase legs of the autotransformer. The autotransformer includes a plurality of output terminals for providing a plurality of AC output voltages, and a plurality of internal terminals for connecting the first, second, and third plurality of coils in a configuration that provides a 40&#xb0; phase shift in the AC outputs provided by the dual-input nine-phase autotransformer.

Dual-input nine-phase autotransformer for electric aircraft AC-DC converter

A low pass filter includes a differential mode filter and a common mode filter. The common mode portion of the filter includes at least one inductor and one capacitor, as well as a damping circuit with at least one capacitor. The low pass filter has a reduced weight, which is useful in circumstances in which weight is a significant factor, such as in aircraft.

Lightweight electromagnetic interference filter

An electrically insulating bobbin surrounds the magnetic core of an inductor. The bobbin includes a number of channels to receive wire for making an inductor. When wire is positioned in the channels, the wire is wound around the inductor core, but insulated from the inductor core and the other turns of wire. Because the bobbin insulates the turns of wire from each other and from the inductor core, bare rope wire can be used to wrap the inductor, resulting in reduced size and weight and improved ease of manufacture.

Inductor winder

Film capacitor assembly has a plurality of film capacitive layers for storing an electric charge. The plurality of film capacitive layers have a first metal contact and a second metal contact. A heat sink removes heat from the plurality of film capacitive layers. The heat sink is in thermal conductive communication with at least one of the first metal contact and the second metal contact. A dielectric material is configured to prevent a transmission of electric current through the heat sink from the plurality of film capacitor capacitive layers.

System and method of film capacitor cooling

An electrical inductor assembly comprises an inductor core having a circular shape, a wire guide that surrounds the inductor core and includes a plurality of slots, at least one of the slots forming a path winding around the inductor core, and at least one wire placed in one of the plurality of slots to form a winding. A method of forming an electrical inductor assembly comprises forming an inductor core having a circular shape, surrounding the inductor core with a wire guide, winding at least one wire around the inductor core along a slot in the wire guide, and applying an insulating material to the slot containing the at least one wire to electrically insulate the at least one wire.

Growing community of inventors

Roscoe, IL, United States of America

John Huss