Christopher W O'Brien

US Patent:

6916564, Jul 12, 2005

Filed:

Dec 31, 2002

Appl. No.:

10/335538

Inventors:

Lawrence G. Clawson - Dover MA, US
Christopher J. O'Brien - Watertown MA, US
Mark R. Hagan - Cambridge MA, US

Assignee:

Nuvera Fuel Cells, Inc. - Cambridge MA

International Classification:

H01M008/04
H01M008/12
H01M002/00
H01M002/02

US Classification:

429 17, 429 26, 429 34

Abstract:

A hydrogen fuel cell power system having improved efficiency comprises a fuel cell, a source of hydrogen gas, a compressor for creating a pressurized air stream, and a liquid supply which is heated by waste heat form the power system and evaporates into the pressurized air stream to produce a pressurized air and steam mixture. The pressurized air/steam mixture, which is preferably used as the oxidant in the fuel cell, is combusted with fuel in a burner to produce a high-temperature steam-laden exhaust stream. The high-temperature steam-laden exhaust stream drives an expander to produce a power output, and a power take-off from the expander uses the expander power to, for instance, drive an electrical generator, or drive other system components. The evaporation of liquid can take place external to the fuel cell, or can take place directly within the fuel cell, preferably using a cooling liquid that is directly injected into the fuel cell. The fuel cell power system advantageously uses the low-temperature waste heat of the fuel cell to evaporate liquid into the pressurized air, resulting in a steam/air mixture having a relatively large expansion potential.

US Patent:

20060188761, Aug 24, 2006

Filed:

Dec 30, 2005

Appl. No.:

11/323336

Inventors:

Christopher O'Brien - Somerville MA, US
Michael Leshchiner - Needham MA, US
James Cross - Melrose MA, US
Olga Polevaya - Needham MA, US
Darryl Pollica - Melrose MA, US

International Classification:

H01M 8/04
H01M 8/06

US Classification:

429019000, 429026000, 429034000, 429020000, 429024000, 429013000

Abstract:

A fuel cell power plant comprises a fuel processor and a fuel cell stack. The fuel cell stack has cooling water directly passing through its anode or cathode compartments. The high humidity cathode exhaust may be used to provide oxygen and steam for the autothermal reaction in the fuel processor, and may also be used in a combustor to generate heat and combustion exhaust. The combustion exhaust can be used to drive a turbine to generate power.

US Patent:

20090258259, Oct 15, 2009

Filed:

Apr 14, 2008

Appl. No.:

12/081298

Inventors:

Michael Leshchiner - Needham MA, US
Christopher O'Brien - Somerville MA, US
Yanlong Shi - Littleton MA, US
Darryl Pollica - Melrose MA, US

International Classification:

H01M 8/04
H01M 8/18

US Classification:

429 17, 429 20

Abstract:

A catalytic heat exchanger comprises a first channel and a second channel, separated by a partition wall. Catalyst coated metal substrates are removably inserted into the first or the second channel or both, which facilitates catalytic reactions in the channel. Energy released in the reaction in one channel is transferred through the partition wall to heat the fluid in the other channel. The catalytic heat exchangers can be used in a fuel processing system to convert hydrocarbon fuels to a hydrogen rich reformate.

US Patent:

20220186879, Jun 16, 2022

Filed:

Jan 28, 2022

Appl. No.:

17/587324

Inventors:

- Waltham MA, US
Christopher John O'Brien - Waltham MA, US
Bryan Gordon - Goffstown NH, US

Assignee:

Ivys Inc. - Waltham MA

International Classification:

F17C 9/00

Abstract:

According to aspects, hydrogen fueling systems and methods are provided, including vehicle-to-vehicle communication techniques, hydrogen cooling techniques and/or hydrogen dispenser control techniques that facilitate improving aspects of a hydrogen fueling station.

US Patent:

20220186880, Jun 16, 2022

Filed:

Jan 28, 2022

Appl. No.:

17/587352

Inventors:

- Waltham MA, US
Christopher John O'Brien - Waltham MA, US
Bryan Gordon - Goffstown NH, US

Assignee:

Ivys Inc. - Waltham MA

International Classification:

F17C 9/00

Abstract:

According to aspects, hydrogen fueling systems and methods are provided, including vehicle-to-vehicle communication techniques, hydrogen cooling techniques and/or hydrogen dispenser control techniques that facilitate improving aspects of a hydrogen fueling station.

US Patent:

20220186881, Jun 16, 2022

Filed:

Jan 28, 2022

Appl. No.:

17/587733

Inventors:

- Waltham MA, US
Christopher John O'Brien - Waltham MA, US
Bryan Gordon - Goffstown NH, US

Assignee:

Ivys Inc. - Waltham MA

International Classification:

F17C 9/00

Abstract:

According to aspects, hydrogen fueling systems and methods are provided, including vehicle-to-vehicle communication techniques, hydrogen cooling techniques and/or hydrogen dispenser control techniques that facilitate improving aspects of a hydrogen fueling station.

US Patent:

20220186882, Jun 16, 2022

Filed:

Jan 28, 2022

Appl. No.:

17/587775

Inventors:

- Waltham MA, US
Christopher John O'Brien - Waltham MA, US
Bryan Gordon - Goffstown NH, US

Assignee:

Ivys Inc. - Waltham MA

International Classification:

F17C 9/00

Abstract:

According to aspects, hydrogen fueling systems and methods are provided, including vehicle-to-vehicle communication techniques, hydrogen cooling techniques and/or hydrogen dispenser control techniques that facilitate improving aspects of a hydrogen fueling station.

US Patent:

20220186883, Jun 16, 2022

Filed:

Jan 28, 2022

Appl. No.:

17/587821

Inventors:

- Waltham MA, US
Christopher John O'Brien - Waltham MA, US
Bryan Gordon - Goffstown NH, US

Assignee:

Ivys Inc. - Waltham MA

International Classification:

F17C 9/00

Abstract:

According to aspects, hydrogen fueling systems and methods are provided, including vehicle-to-vehicle communication techniques, hydrogen cooling techniques and/or hydrogen dispenser control techniques that facilitate improving aspects of a hydrogen fueling station.