DAVID G CONVERSE
Engineering in Hampton, MA
License number
Massachusetts 46661
Issued Date
Jul 17, 2006
Expiration Date
Jun 30, 2018
Type
Mechanical Engineer
Address
Address
Hampton, MA 01036
Professional information
Electric Storage Augmentation Of Fuel Cell System Transient Response
US Patent:
7087329, Aug 8, 2006
Filed:
Nov 19, 2003
Appl. No.:
10/717089
Inventors:
David G. Converse - Hampden MA, US
Steven J. Fredette - South Windsor CT, US
Steven J. Fredette - South Windsor CT, US
Assignee:
UTC Fuel Cells, LLC - South Windsor CT
International Classification:
H01M 8/04, H01M 10/44, H02J 7/02
US Classification:
429 13, 320101, 307 46
Abstract:
A fuel cell stack () with output lines () has a bank of supercapacitors () or batteries () connected across the output lines, either directly or through a DC/DC converter (). The fuel cell stack receives fuel either from a reformer () or a source () of hydrogen. Power is supplied through a power conditioning system () to a load (), all under the control of a controller (). The supercapacitors or batteries receive additional charge from excess power when there is a sudden decrease in the load, and provide charge to the output power lines () when there is a sudden increase in load demand. In one embodiment, the voltage of the supercapacitors or batteries always follow the voltage of the fuel cell stack, thereby providing or receiving commensurate charge. With the DC/DC converter, the supercapacitors or batteries may be operated at voltages which are a multiple or a fraction of fuel cell stack voltage, and may have voltages boosted or bucked to aid in response to transients.
Saturated Vapor Block For Frozen Fuel Cell Power Plant
US Patent:
2011014, Jun 16, 2011
Filed:
Sep 25, 2008
Appl. No.:
13/059658
Inventors:
David G. Converse - Hampden MA, US
Fortunat Mueller - North Yarmouth ME, US
Fortunat Mueller - North Yarmouth ME, US
International Classification:
H01M 8/04
US Classification:
429429
Abstract:
A fuel cell power plant includes a cell stack assembly having an anode and a cathode. A component is arranged in fluid connection with at least one of the anode and cathode. The component has a first shut-down cooling rate. A heat exchanger is arranged in fluid communication with and between the component and one of the anode and cathode. The heat exchanger has a second shut-down cooling rate greater than the first shut-down cooling rate. Water vapor within the fuel cell power plant outside of the cell stack assembly will condense and freeze in the heat exchanger rather than the component, avoiding malfunction of the component upon start-up in below freezing environments.
Multi-Stage Centrifugal Fan
US Patent:
2011031, Dec 29, 2011
Filed:
Jun 28, 2010
Appl. No.:
12/824905
Inventors:
David G. Converse - Hampden MA, US
Assignee:
HAMILTON SUNDSTRAND CORPORATION - Windsor Locks CT
International Classification:
F04D 1/08, F04D 29/44
US Classification:
4151993
Abstract:
A multi-stage centrifugal fan is provided and includes first and second stages of a rotor having substantially axially aligned rotor vanes formed to impart energy to a fluid moving in an outward radial direction when the first and second stages of the rotor rotate about a centerline and a stator having stator vanes radially interposed between and substantially axially aligned with the first and second stage rotor vanes.
Universal Commode Processing Unit
US Patent:
2013031, Dec 5, 2013
Filed:
May 30, 2012
Appl. No.:
13/483311
Inventors:
Thomas J. Stapleton - Southwick MA, US
Kenneth P. Flynn - Enfield CT, US
Wayne G. Savage - Tolland CT, US
David G. Converse - Hampden MA, US
Kenneth P. Flynn - Enfield CT, US
Wayne G. Savage - Tolland CT, US
David G. Converse - Hampden MA, US
International Classification:
E03D 11/00
US Classification:
4316
Abstract:
A waste collection unit includes a motor supported by a housing. A fan is coupled to the motor by a first member configured to provide a rotational input speed. A liquid-gas separator is coupled to a second member configured to provide a rotational output speed. A speed reduction device is coupled to the first and second members. The speed reduction device is configured to provide a rotational output speed that is less than the rotational input speed. In another embodiment, the fan is arranged in the housing and is directly coupled to the motor by the first member. The fan includes first and second sides respectively including first and second pumping elements. A first waste collection line fluidly connects a urinal to the first side. A second waste collection line fluidly connects a fecal storage container to the second side.
Heat Pump For High Temperature Environments
US Patent:
8015830, Sep 13, 2011
Filed:
Aug 20, 2009
Appl. No.:
12/544354
Inventors:
David G. Converse - Hampden MA, US
Assignee:
Hamilton Sundstrand Space Systems International, Inc. - Windsor Locks CT
International Classification:
F25B 21/02
US Classification:
62 33, 622592
Abstract:
A component has an outer wall defining an interior chamber to be cooled. Electronic equipment is mounted within the outer wall in the chamber. A thermoelectric cooler has a cool node positioned to be within the chamber, and a hot node positioned outwardly of the outer wall. A fuel cell provides electricity to the thermoelectric cooler. The fuel cell is mounted outwardly of the outer wall.