Sundstrand Corporation

Other

Ge Aviation Systems Limited

Carleton Life Support Systems Inc.

Sunstrand Corporation

Michael G Schneider

Timothy J Bland

Shin Katsumata

Richard E Niggemann

David G Halsey

Walter J Iseman

Jan Zywot

William A Byrd

Roger J Collings

Patrick J Murray

Gerard Howard Bueche

Scott M Thomson

Robert Donald Grennan

Jeremy Schaeffer

David W Chaudoir

Timothy Bland, Deceased

Gary Michael Chessare

William Schumacher

Jeremy A Schaeffer

An apparatus and method relating to a generator comprising a housing defining an interior and fluidly separating the interior from surrounding ambient air, at least one of a rotor or stator located within the housing, a cooling circuit passing through at least a portion of the housing to cool the interior and recirculating a coolant having a density greater than the ambient air, and a jet pump having a motive fluid conduit fluidly coupled to the cooling circuit, a transport fluid circuit fluidly coupled to the ambient air.

Generator with jet pump having motive fluid for fluidly coupling to a cooling circuit

Thermal conditioning for an area surrounding one or more air separation canisters includes directing the exhaust gas of the thermal conditioning unit to the area surrounding the canisters. The area may be defined by a housing in which the canisters are positioned.

Thermal conditioning for air separation modules

An electromagnetic thrust bearing having reduced windage losses, improved structural integrity, and enhanced electromagnetic flux density. The present invention provides an electromagnetic thrust bearing having a first annular stator segment and a second annular stator segment joined thereto to define an annular electromagnetic coil chamber having an L-shaped cross-section. By employing first and second stator segments, the electromagnetic coil can be precision wound onto one segment without interference from the other segment, and then the two segments can be joined after the precision winding has been performed. The first segment is joined to the second segment at a location remote from the stator poles to thereby provide a more structurally sound assembly able to better withstand loads imposed thereon. The stator segment pole faces include axially extending lips to maximize electromagnetic flux density and thus load carrying capacity.

L-shaped magnetic thrust bearing

This invention relates to a cooling apparatus for at least one electronic component. The cooling apparatus includes a first member which has an inner surface and an outer surface. The outer surface of the first member is adapted for mounting the electronic component thereon at a preselected location. The cooling apparatus also includes a venturi member which is fixedly secured to the inner surface of the first member. The venturi member is positioned to direct a cooling fluid to flow in thermal communication with the inner surface of the first member. The venturi member is also positioned to control a flow velocity of the cooling fluid flowing in thermal communication with a preselected portion of the inner surface of the first member. The preselected portion of the inner surface of the first member is opposite to the preselected location of the outer surface of the first member.

Cooling apparatus for an electronic component

A heat exchanger for aircraft electronics. The present invention provides a plurality of reflux coolers wherein each reflux cooler is primarily dedicated to cooling a specific electronic component, such as one phase of a multiphase device. The reflux coolers are undersized to adequately cool the individual phases to which each are dedicated, but are interconnected and cross-linked such that the heat dissipation demand is shared amongst the plurality of reflux coolers. Moreover, the heat pipes interconnecting the reflux coolers can be provided with additional surface area in the form of fins to further augment the heat dissipation capacity of the system. Therefore, in the event a single reflux cooler is damaged, for example, during military engagement, the remaining reflux coolers are able to share the load primarily designed to be dissipated by the damaged reflux cooler. Similarly, if one individual phase or component is damaged or lost, and the heat generated by the remaining phases consequently increases, the heat dissipation load placed on the reflux coolers primarily designed for cooling the remaining phases can be communicated to the other reflux coolers and heat pipes to provide an adequate heat rejection path.

Reflux cooler coupled with heat pipes to enhance load-sharing

A rotating flood cooled machine having reduced windage losses comprises a stator having an inner periphery and a rotor rotatably positioned within the stator separated from the stator by a gap which is filled with fluid. A film divider is rotatably positioned within this gap and is allowed to rotate freely. In such a machine, when the rotor rotates at a speed .omega., the film divider is caused to rotate at a speed of approximately .omega./2. At this speed, the film divider obtains a radial position during rotation of approximately midway between the outer periphery of the rotor and the inner periphery of the stator. This radial position is preferably maintained by the hydrodynamic bearing action of the fluid within the gap, or alternatively through the use of radial positioning or retaining mechanisms. The use of axial constraint mechanisms to maintain the film divider within the air gap under the shear forces of the fluid during operation is also contemplated. The film divider may also include a plurality of holes to facilitate a flow of fluid within the air gap. This flow may be further facilitated within and trough the air gap by dividing the film divider in two halves along a midline. A method of reducing the windage loss of a rotating flooded machine, such as, e.g., an electric motor or generator, comprises the steps of placing a film divider in the gap between the rotor and stator and allowing this divider to rotate freely therein during operation.

Method and apparatus for reducing windage losses in rotating equipment

A combined electronics mounting plate and heat exchanger and method of manufacturing same. The present invention provides an electronics mounting plate formed from a metal matrix composite and a metal heat exchanger in order to combine the low coefficient of thermal expansion and high heat dissipation characteristics of a metal matrix composite, with the cost effectiveness and relatively easy manufacturability of metal. In the preferred embodiment, the metal matrix composite is provided in the form of aluminum and silicon carbide, and the metal heat exchanger is provided in the form of aluminum fins. The method of manufacturing the present invention includes the steps of cleaning the metal matrix composite mounting plate and aluminum heat exchanger in a nitric acid fluoride salt before brazing the elements together. In one embodiment of the present invention the metal matrix composite mounting plate includes pin fins extending toward the aluminum heat exchanger fins, and an additional aluminum braze sheet is provided between the mounting plate and heat exchanger fins to enhance the brazement therebetween and improve the thermal conductivity of the resulting mounting plate and heat exchanger.

Electronics mounting plate with heat exchanger and method for

An electro-mechanical device having an integral reflux-type cooler configured to conduct heat generated in a first member of the electro-mechanical device to a heat sink, while not exposing a second member of the device to refrigerant in the reflux cooler is provided. In some embodiments of the invention, the refrigerant is allowed to directly contact electrical windings, or a magnetic core of the electro-magnetic device for maximizing heat transfer. Other embodiments of the invention provide integral phase change material for heat storage capability, and allow flexibility in mounting the condenser of the reflux cooler remotely from the electro-mechanical device.

Reflux-cooled electro-mechanical device

The present invention is a liquid cooled electric machine (10) having enhanced cooling of the end turns (22) by providing intimate contact between the end turns and coolant fluid flowing through a first annular flow channel (34) and a second annular flow channel (50). Furthermore, a cylindrical liner (62) which is force fit within the annulus of the stator 12 forms part of the first and second annular flow channels and further provides support against radially inward deflection of the end turns (22). Furthermore, the invention is a cooling system (200) for an exciter generator in a self-excited electric power generator which has a liquid coolant circuit (216) which splits coolant flow between an inside surface (222) of a fullwave rectifier assembly (214) and an outside surface (226) of the fullwave rectifier assembly which absorbs heat from the rotor of the exciter generator.

Electric machine with enhanced liquid cooling

This invention relates to a fishing bait bucket holding apparatus and method of use, especially in a boat. The apparatus comprises a bracket, for mounting to e.g. a boat, straps to embrace the girth of the bucket and thereby stabilize the bucket against lateral movement with respect to the bracket, and a bucket top holding rod mounted to the bracket and vertically biased to exert a downward force on the top of the bucket or bucket lid. Methods of use of the holding apparatus are also disclosed.

Fishing bait bucket holder

A static, centrifugal two-phase distributor (20) is constructed to distribute two-phase refrigerant equally on a mass basis to conduits (37) of evaporator circuits. The distributor (20) has an upper section (21) defining a swirl chamber (23) with a tangentially arranged inlet (28) and a lower section (25) in which are arranged curved guide vanes (39) on a hub (38) to divide equally to apertures (36) in an end wall (35) of the distributor (20) the liquid and vapor refrigerant phases separated centrifugally in the second chamber (23). The apertures (36) are connected to conduits (37) of the evaporator circuits.

Growing community of inventors

Rockford, IL, United States of America

Michael G Schneider