Proton Energy Systems, Inc.

Infinity Fuel Cell and Hydrogen, Inc.

Other

United Technologies Corporation

Universal Motion Components Co., Inc.

Ohmium International, Inc.

Smith, William F.

William F Smith

James F McElroy

Trent M Molter

Raymond Lee Call, Ii

Jason K Shiepe

A John Speranza

Lawrence C Moulthrop, Jr

Mark Lillis

Lawrence Clinton Moulthrop

Thomas M Skoczylas

John Zagaja

Christopher W Callahan

Alfred Meyer

Jay W LaGrange

Arne Watson Ballantine

Chockkalingam Karuppaiah

Joseph E Genovese

John Fayer

Raymond Lee Ii Call

An anode gas diffusion layer for a proton exchange membrane (PEM) electrolyzer includes a porous stainless steel sheet formed by a powder metallurgical technique.

Methods of manufacturing a gas diffusion layer and an electrochemical cell incorporating the same

A fuel cell comprising a series of cascaded cell stacks comprising at least one humidifier-degasser coupled to the cell stacks proximate a stack inlet; the at least one humidifier-degasser comprising at least one degasification section fluidly coupled upstream of at least one humidifier section; and at least one inert concentrator cell coupled downstream from the cell stacks proximate a stack vent.

Cascading stack electrochemical fuel cell

Some embodiments of a gearbox for an irrigation system can comprise a housing, a worm gear within the housing, a bull gear within the housing and configured to be engaged with the worm gear, a diaphragm, and a vent. The diaphragm can define a chamber configured for expansion and contraction and configured to be positioned inside the housing to relieve pressure build-up within the housing. The vent can be configured to allow air to flow between the atmosphere and the chamber.

Gearbox with internal diaphragm

An electrochemical cell having a water/gas porous separator prepared from a polymeric material and one or more conductive cell components that pass through, or are located in close proximity to, the water/gas porous separator, is provided. The inventive cell provides a high level of in-cell electrical conductivity.

Electrochemical cell with improved water or gas management

An electrochemical cell having two or more diffusion bonded layers, which demonstrates a high degree of ruggedness, reliability, efficiency and attitude insensitiveness, is provided. The novel cell structure simplifies construction and operation of these cells. Also provided is a method for passive water removal from these cells. The inventive cell, as well as stacks made using these cells, is suitable for use in applications such as commercial space power systems, long endurance aircraft, undersea power systems, remote backup power systems, and regenerative fuel cells.

Electrochemical cell

A modular, regenerative fuel cell system that includes a plurality of dedicated or reversible electrochemical cell stack modules, where each such module is devoid of major fluid systems, is provided. The inventive system allows a user to specifically and effectively tailor the system to the demands of a particular application. If additional electrolysis capability and/or additional power are needed, only electrolysis cell stack modules and/or fuel cell stack modules are added to the system. The use of unnecessary or duplicative support equipment is avoided thereby rendering this system more cost effective and efficient.

Modular regenerative fuel cell system

An exemplary embodiment of a regenerative electrochemical cell system, comprises: a fuel cell module, an electrolysis module, a heat exchange, and an inverted hydrogen storage device. The fuel cell module can comprise a fuel cell hydrogen inlet in fluid communication a hydrogen storage system, and a fuel cell oxygen inlet in fluid communication with a surrounding atmosphere and in fluid communication with a gaseous portion of an oxygen/water phase separation device. The electrolysis module can comprise an electrolysis water inlet in fluid communication with the water storage device via the fuel cell module, and an electrolysis water outlet in fluid communication with a second water storage device. The inverted hydrogen storage device can comprise a fluid inlet in fluid communication with an electrolysis hydrogen outlet, and a gas outlet in fluid communication with a fuel cell hydrogen inlet.

Regenerative electrochemical cell system and method for use thereof

An exemplary embodiment of the regenerative electrochemical cell system comprises: a fuel cell module comprising a fuel cell oxygen inlet in fluid communication a water storage device, and a fuel cell hydrogen inlet in fluid communication with both an oxygen source and with a gaseous portion of an water phase separation device; an electrolysis module comprising an electrolysis water inlet in fluid communication with the water storage device via a fuel cell oxygen outlet, and an electrolysis water outlet in fluid communication with the fuel cell hydrogen. One of the embodiments for operating a regenerative electrochemical cell system disclosed herein, comprises: introducing feed hydrogen from a hydrogen storage system to a fuel cell hydrogen electrode and introducing feed oxygen from an oxygen/water phase separation device to a fuel cell oxygen electrode; reacting hydrogen ions with the oxygen to generate electricity and water; once the fuel cell has attained operating conditions, ceasing the feed oxygen from the oxygen/water phase separation device, and introducing second oxygen from a surrounding atmosphere module to the fuel cell oxygen electrode; directing the water to a water storage device; introducing water to an electrolysis water electrode and power to an electrolysis module, to produce refuel hydrogen and oxygen; and directing the refuel hydrogen to the hydrogen storage device.

A system and method are provided for generating hydrogen for use with an internal combustion engine. The system includes a venturi device coupled with an exhaust stream from the internal combustion engine. The venturi device creates a gas flow through a condenser to generate reactant water. After the reactant water is polished to remove contaminants, hydrogen and oxygen are disassociated using a PEM based electrolyzer. The hydrogen gas is used by the internal combustion engine to assist in the combustion process and reduce pollutant emissions.

Hydrogen generation apparatus for internal combustion engines and method thereof

A sealed worm wheel gearbox is provided having a worm disposed on a driveshaft. The worm engages a bull gear within the gearbox. Eccentric rotatable driveshaft mounts are mounted on opposite sides of the gearbox to support the driveshaft. The driveshaft axis of rotation is offset from the eccentric rotatable driveshaft mount axis of rotation. Thus, when the eccentric shaft mounts are rotated, the driveshaft moves linearly within the gearbox. In this way, rotation of the eccentric shaft mounts enables engagement and disengagement of the worm and bull gears.

Disengageable worm wheel gearbox

The electrochemical gas purifier system consists of a cell module with accessory components mounted in a single framework. The module consists of a number of single cells each capable of purifying and ultimately producing hydrogen gas at pressures exceeding 2000 psi. The process comprises introducing a contaminated hydrogen stream to a cell comprising an anode and a cathode with an electrolyte membrane disposed therebetween. The hydrogen is oxidized on the anode to protons which electrochemically migrate across the membrane to the cathode where they recombine with electrons which have passed through an external power source. The contaminants exit the anode side of the cell while the purified hydrogen exits the cathode side of the cell.

Growing community of inventors

Suffield, CT, United States of America

William F Smith