Matthew Allen Keyser
Engineers at 63 Pl, Arvada, CO

License number
Colorado 60093
Issued Date
Jun 5, 1991
Renew Date
Jun 5, 1991
Type
Engineer Intern
Address
Address
13507 W 63Rd Pl, Arvada, CO 80004

Professional information

Matthew Keyser Photo 1

Advanced Vehicle Battery Cooling/Heating System With Varying Hydraulic Diameter

US Patent:
2011022, Sep 22, 2011
Filed:
Nov 24, 2008
Appl. No.:
13/130707
Inventors:
Gi-Heon Kim - Golden CO, US
Ahmad Pesaran - Boulder CO, US
Matthew Allen Keyser - Arvada CO, US
Assignee:
Alliance For Sustainable Energy ,LLC - Golden CO
International Classification:
H01M 10/50
US Classification:
429120
Abstract:
A battery cooling system () is provided to maintain more uniform temperature distribution in vehicle batteries (). A battery () is provided with at least one exposed cell surface (). A cooling shell () is provided with an interior surface spaced apart from the exposed cell surface (). The interior surface defines a flow channel () for cooling fluid () such as air () provided by a system fan (), and the air () flows in direct contact with the cell surface () from an inlet to an outlet of the channel (). The channel () has a first hydraulic diameter at the inlet that is greater than a second hydraulic diameter at the outlet to the channel (). The hydraulic diameter is varied or decreased along the length of the channel () such that the system provides a first surface heat transfer coefficient proximate to the channel inlet that is less than a second surface heat transfer coefficient proximate to the channel outlet.


Matthew Keyser Photo 2

Passive Safety Device And Internal Short Tested Method For Energy Storage Cells And Systems

US Patent:
2013020, Aug 15, 2013
Filed:
Oct 27, 2010
Appl. No.:
13/882316
Inventors:
Matthew Keyser - Arvada CO, US
Eric Darcy - League City TX, US
Dirk Long - Golden CO, US
Ahmad Pesaran - Boulder CO, US
Assignee:
ALLIANCE FOR SUSTAINABLE ENERGY, LLC - Golden CO
International Classification:
H01M 2/34
US Classification:
429 50, 429 62
Abstract:
A passive safety device for an energy storage cell for positioning between two electrically conductive layers of the energy storage cell The safety device also comprising a separator and a non-conductive layer. A first electrically conductive material is provided on the non-conductive layer. A first opening is formed through the separator between the first electrically conductive material and one of the electrically conductive layers of the energy storage device. A second electrically conductive material is provided adjacent the first electrically conductive material on the non-conductive layer, wherein a space is formed on the non-conductive layer between the first and second electrically conductive materials. A second opening is formed through the non-conductive layer between the second electrically conductive material and another of the electrically conductive layers of the energy storage device. The first and second electrically conductive materials combine and exit at least partially through the first and second openings to connect the two electrically conductive layers of the energy storage device at a predetermined temperature.


Matthew Keyser Photo 3

Vacuum-Insulated Exhaust Treatment Devices, Such As Catalytic Converters, With Passive Controls

US Patent:
7431896, Oct 7, 2008
Filed:
Jun 2, 2005
Appl. No.:
11/145339
Inventors:
David K. Benson - Golden CO, US
Steven D. Burch - Honeoye Falls NY, US
Matthew A. Keyser - Arvada CO, US
Lance Mews - Caledonia MI, US
Donald R. Rigsby - Jenison MI, US
C. Edwin Tracy - Golden CO, US
Assignee:
Benteler Automotive Corporation - Auburn Hills MI
International Classification:
B01D 50/00, B21D 51/16
US Classification:
422179, 422180, 422177, 29890
Abstract:
A thermally-activated exhaust treatment device, such as a catalytic converter, for vehicles includes a core having an inner housing and a catalytic material. A jacket includes an outer housing enclosing the inner housing, but characteristically not contacting the inner housing. The inner and outer housings include walls forming a vacuum-drawn sealed insulation cavity around the inner housing. A temperature-activated variable insulator device is positioned within the outer housing and includes a hydrogen source and controls for controlling the variable insulator device. A vacuum-maintenance device is incorporated into the insulation cavity, and includes a small container, getter material positioned in the container, and a porous member allowing gas in the insulation cavity to communicate with the getter material. A multi-layered radiation shield is positioned in the vacuum space and is loosely coupled to the inner housing. A vacuum detector includes a visible indicator of the vacuum in the insulation cavity.


Matthew Keyser Photo 4

Calorimeters For Testing Energy Storage Systems And Power Electronics Methods Of Making The Same And Methods Of Use

US Patent:
2014000, Jan 2, 2014
Filed:
Mar 9, 2012
Appl. No.:
14/004319
Inventors:
Matthew Allen Keyser - Arvada CO, US
Ahmad Pesaran - Boulder CO, US
Mark Alan Mihalic - Jamestown CO, US
John Ireland - Denver CO, US
Assignee:
Alliance for Sustainable Energy, LLC - Golden CO
International Classification:
G01K 17/00
US Classification:
374 31
Abstract:
Large volume calorimeters () and small volume, or cell, calorimeters (), as well as methods of making and using the same, are provided.