Jonathan R O'Neill, 50Enfield, CT

2011028, Nov 17, 2011

Jan 26, 2009

13/138021

Robert M. Darling - South Windsor CT, US
Michael L. Perry - Glastonbury CT, US
Jonathan O'Neill - Bolton CT, US

H01M 8/06
H01M 8/04
H01M 8/24

429414

Fuel cell systems () and related methods involving accumulators () with multiple regions (R, R; R′, R′) of differing water fill rates are provided. At least one accumulator region with a relatively more-rapid fill rate (R; R′) than another accumulator region (R; R′) is drained of water at shutdown under freezing conditions to allow at least that region to be free of water and ice. That region is then available to receive water from and supply water to, a fuel cell () nominally upon start-up. The region having the relatively more-rapid fill rate (R; R′) may typically be of relatively lesser volume, and may be positioned either relatively below or relatively above the other region(s).

2012020, Aug 9, 2012

Oct 8, 2009

13/261250

Paravastu Badrinarayanan - Manchester CT, US
Robert M. Darling - South Windsor CT, US
Jonathan D. O'Neill - Manchester CT, US

H01M 8/10

429480

A fuel cell for a fuel cell power plant having gas diffusion layers which do not have microporous layers, includes a PEM (), a cathode comprising at least a cathode catalyst () and a gas diffusion layer () on one side of the PEM, and an anode comprising at least an anode catalyst () and a gas diffusion layer () on the opposite side of the PEM, and a porous water transport plate having reactant gas flow field channels () () adjacent to each of said support substrates as well as water flow channels () in at least one of said water transport plates. The thermal conductivity of the cathode and/or the anode gas dif- fusion layers is less than about one-quarter of the thermal conductivity of conventional gas diffusion layers, less than about W/m/K, to promote flow of water from the cathodes to the anodes and to the adjacent water transport plates, during start-up at normal ambient temperatures (lower than normal PEM fuel cell operating temperatures).

2013028, Oct 24, 2013

Apr 24, 2012

13/454270

Jonathan Daniel O'Neill - Manchester CT, US

H01M 8/04
H01M 8/00
H01M 8/10

429492, 429512, 429516, 429535

An example fuel cell system includes a fuel cell power plant and a tank providing a volume that is configured to hold a fuel cell fluid. The fuel cell power plant is at least partially disposed within the volume.

2013032, Dec 5, 2013

Jun 5, 2012

13/489452

Jonathan Daniel O'Neill - Manchester CT, US
Timothy W. Patterson - West Hartford CT, US
Christopher John Carnevale - Vernon CT, US
Roopnarine Sukhram - Hartford CT, US

H01M 8/04

429514, 429535

An example fuel cell assembly includes a plate having channels configured to facilitate movement of a fuel cell fluid near an area of active flow of fuel cell. The channels include portions having a varying depth that extend laterally outside of the area of active flow.

2014001, Jan 9, 2014

Mar 29, 2011

14/005762

Jonathan Daniel O'Neill - Manchester CT, US

United Technologies Corporation - Hartford CT

H01M 8/04

429431

An example method of controlling a fuel cell power plant based on provided power includes selectively varying an electrical resistance of the variable resistive device responsive to at least one of a power provided by the fuel cell power plant, a current provided by the fuel cell power plant, or a voltage decay rate.

2019021, Jul 18, 2019

Jan 16, 2018

15/872479

- Charlotte NC, US
Roberto Woods - South Windsor CT, US
Jonathan Daniel O'Neill - Manchester CT, US

Hamilton Sundstrand Corporation - Charlotte NC

B01D 45/18
B01D 45/14

A rotary separator may comprise a drum configured to rotate, a pickup member extending into the drum, comprising a pickup channel having a first inlet for receiving a liquid, and a pitot channel having a second inlet for receiving the liquid. The liquid exits the drum through the pickup channel in response to a pressure of the liquid being measured through the pitot channel. A valve may be coupled to the pickup channel. A pressure sensor may be coupled to the pitot channel.

2018032, Nov 8, 2018

Jul 13, 2018

16/034441

- Charlotte NC, US
Jonathan Daniel O'Neill - Manchester CT, US

H01M 8/04955
H01M 8/04858
H01M 8/04089
H01M 8/04746
H01M 8/04537
H01M 8/249
H01M 8/04828

A fuel cell assembly according to an exemplary aspect of the present disclosure includes, among other things, a first fuel cell stack in series with a variable resistor and a second fuel cell stack in parallel with the first fuel cell stack and in series with a contactor. A resistance level of the variable resistor is adjusted in response to deactivating the contactor. A method of regulating a fuel cell assembly is also disclosed.

2018032, Nov 8, 2018

Jul 10, 2018

16/031576

- Charlotte NC, US
Jonathan Daniel O'Neill - Manchester CT, US

H01M 8/04992
H01M 8/04537
H01M 8/18
H01M 8/04746
H01M 8/04858
H01M 8/0438

An electrochemical cell system and a method for operating an electrochemical cell is provided. The method including determining one of a power level, current level or a voltage level of the electrochemical cell, the electrochemical cell including at least one cell having an anode side and a cathode side, the electrochemical cell further having a water transport plate operably coupled to the cathode side. An oxidant pressure level is determined in the cathode side. A water pressure level is determined in the water transport plate. The active area of the at least one cell is changed by adjusting at least one of the oxidant pressure level or the water pressure level based at least in part on the determined power level, current level or voltage level.