Uop Lcc

Honeywell International Inc.

Alliedsignal Inc.

Russell W Johnson

Lee Hilfman

Mark J O'Hara

Stephen Frederic Yates

Bijan F Hagh

Peter M Michalakos

Susan L Lambert

Randy J Lawson

Ronald Paul Rohrbach

Peter D Unger

Richard Bryce Fox

Mike S Koerner

Alexander M Bershitsky

Mark D Moser

Gordon William Jones

Gary B Zulauf

Peter Urban

Francis Stephen Lupton

Mark B Koch

Delmar W Robinson

Daguang Zheng

Deanna Pinar Chase

Paul Kurlak

Tery L Barr

Brent S DeFeo

Daniel E Bause

John G Gatsis

Li Wang

Rehan Zaki

Mario Scaini

Mukund Acharya

Richard Braun

Walter F Hribik

Mahmoud Adel Elsayed

Robert R Frame

Blaise J Arena

Mark L La Forest

R Joe Lawson

Thomas P Malloy

Neil Murdie

Brian C Krafthefer

Chin-Hsiung Chang

Charles S Lo

Edwin H Homeier

Eric Blumer

Dipak J Shah

Karl J Youtsey

Allen Kent MacKnight

Timothy J Barder

John F Flagg

Mark Criss James

Jean-Pierre Gilson

Michael Faust

Ranjit Darke

Edward M Geiser

Bruce E Staehle

Mark Kaiser

Robert Henry Sedath

Mark Poling

Hillard L Kuntz

John D Howard, Iii

Melissa Dopkins

Damiel E Bause

Brent F De Feo

Jeffrey Chang

David G Hughes

Karel A J Snoble

Subramaniam E Haran

Ken Sendelsky

Shihan Chen

Martin Andren

John Yamanis

Mike Koerner

Tissue box

A carbon-carbon composite preform including a plurality of layers including carbon fibers or carbon-precursor fibers, the layers include a first exterior layer defining a first major surface, a second exterior layer defining a second major surface, and at least one interior layer disposed between the first exterior layer and the second exterior layer, the at least one interior layer having a peripheral region that forms a portion of an outer surface of the preform. The preform includes needled fibers, where at least some needled fibers extend through two or more layers. The preform has an exterior region and a core region, where the exterior region includes at least the peripheral region of at least one interior layer. The needled fibers define a first needled fiber number density (NFND) in the exterior region and a second greater NFND in at least a portion of the core region.

Differential needling of a carbon fiber preform

An Environmental Control System includes sensors, an air purification subsystem, and a controller in communication with the sensors and air purification subsystem. The sensors detect contaminants in outside air supplied through engine and APU bleeds or other air sources including ground supplies and electric compressors, contaminants in recirculated air, particulates in outside air, carbon dioxide in recirculated air, temperature in an environment, and pressure in an environment. These sensed parameters are compared against thresholds. Based on the comparisons, changes to the outside air and/or recirculated air are made.

Aircraft environmental control system that optimizes the proportion of outside air from engines, APU's, ground air sources and the recirculated cabin air to maintain occupant comfort and maximize fuel economy

An Environmental Control System includes a sensor, an air purification subsystem, and a controller in communication with the sensor and air purification subsystem. The sensor detects a contaminant in the air and generates a contaminant signal. The controller compares the contaminant signal to a predicted sensory response threshold. When the contaminant signal reaches the predicted sensory response threshold, the controller commands the air purification subsystem to alter a condition in the air.

Human factors approach to control contaminant concentrations in aircraft supply air from engine and APU bleed air and ground air sources, and in recirculated air being delivered to aircraft cabins for the optimization of user experience and energy consumption

A system is provided for inerting a fuel tank of an aircraft. The system includes a first compressor fluidly coupled to the fuel tank for removing an air and fuel vapor mixture from an ullage of the fuel tank. The system further includes a fuel processor fluidly coupled to the first compressor and configured to receive the air and fuel vapor mixture and to generate hydrogen from the air and fuel vapor mixture. The system further includes a fuel cell fluidly coupled to the fuel processor and configured to receive the hydrogen as anode fuel to produce electricity. The system further includes a combustor fluidly coupled to the fuel cell and configured to combust the exhaust product to produce combustion gas, and a first heat exchanger fluidly coupled to the combustor and configured to cool the combustion gas into inerting gas for the fuel tank.

Aircraft systems and methods with integrated tank inerting and power generation

An aircraft fuel deoxygenation and tank inerting system includes an inert gas source, a fuel deoxygenation system, and an air/fuel heat exchanger. The inert gas source is configured to supply inert gas having an oxygen concentration of less than 3%. The fuel deoxygenation system is adapted to receive fuel from a fuel source and the inert gas from the inert gas source. The fuel deoxygenation system is configured to remove oxygen from the fuel and thereby generate and supply deoxygenated fuel and oxygen-rich purge gas. The air/fuel heat exchanger is adapted to receive compressed air from a compressed air source and the deoxygenated fuel from the fuel deoxygenation system. The air/fuel heat exchanger is configured to transfer heat from the compressed air to the deoxygenated fuel, to thereby supply cooled compressed air and heated deoxygenated fuel.

Fuel deoxygenation and fuel tank inerting system and method

An air purification system includes a photocatalyst on a support disposed to contact airflow through an airflow channel passing across or through the support; an ultraviolet light emitting diode (UV-LED) disposed to emit ultraviolet light onto the photocatalyst, the UV-LED operated at a less than one hundred percent duty cycle, the duty cycle determined at least in part as a function of a desired minimum volatile organic compound conversion rate of air flowing through the airflow channel and a desired maximum by-product concentration of air flowing through an outlet of the airflow channel.

Photocatalyst air purification system with ultraviolet light emitting diodes operated with a duty cycle

Apparatus and methods for the production of a secure supply of breathable air are important under conditions where threats from chemical and biological weapons may be present. A method and a multi-stage CATOX system for producing a purified air flow from ambient air which may have nitrogen containing toxicants is provided. The multi-stage CATOX system has a first stage and second stage, at least one of the first or the second stage has a first catalytic heat exchanger with a cold side supporting a first catalyst and a hot side configured to transfer heat therefrom to the first catalyst.

Multi-stage catalytic air purification system

A self-regulating system for reducing concentration of hydrocarbon vapor in a container may be performed by introducing air into the container and extracting a mixture of air and vapor from the container. The extracted mixture may be compressed with a compressor to produce a flow of compressed mixture of air and vapor. The compressed mixture may be passed through an oxidation reactor that may be either catalytic or thermal to produce a flow air and CO. A turbine may be driven with the flow of air and CO. The compressor may be driven with the turbine. Extraction from the container may continue until vapor concentration is low enough so that flow of COand air from the reactor is insufficient to drive the turbine.

Hybrid fuel tank inerting system

An onboard inert gas generation system includes an evaporator comprising a vessel that receives a hydrocarbon fuel from a fuel tank, separates vapor fuel components from liquid fuel components, establishes a nearly constant fuel vapor composition, and outputs the fuel vapor to be mixed with air prior to combusting the fuel vapor and air mixture in a catalytic reactor. Water is separated from the inert gas produced and the inert gas is introduced into the ullage space of the fuel tank to prevent or reduce possible hazardous conditions in the fuel tank.

Advanced carbon dioxide fuel tank inerting system

A rigid or semi-rigid demister pad is positioned between an air turbine and an inertial water removal device such as extractor in an air conditioning system for an aircraft. The demister pad comprises packed fibers or strands whose diameter typically ranges from approximately 10 or fewer microns to approximately 280 microns. The demister is capable of catching very small droplets discharged from the air turbine that coalesce into larger droplets that exit the demister pad and enter an adjacent water removal device downstream from the pad to separate the larger water droplets from the stream of air. This avoids using a water separator containing a coalescer bag that requires frequent maintenance and is sensitive to dirt and freezing. The demister can operate at freezing temperature, is not dirt-sensitive and requires no maintenance.

Water removal downstream of a turbine

A gas generating system comprises a catalytic reactor in fluid communication with a sulfur separator. The catalytic reactor oxidizes a fuel to provide a supply of carbon dioxide. The sulfur separator removes sulfur components from the stream before or after the fuel is oxidized. A portion of the hot exhaust gas from the catalytic reactor can be used to regenerate an adsorption bed of the sulfur separator.

Advanced carbon dioxide fuel tank inerting system with desulfurization

Growing community of inventors

Elmhurst, IL, United States of America

Russell W Johnson