David P Goulette

US Patent:

7243488, Jul 17, 2007

Filed:

Aug 30, 2005

Appl. No.:

11/215487

Inventors:

Joseph V. Bonadies - Clarkston MI, US
David A. Goulette - Marine City MI, US
Mansour Masoudi - Clarkston MI, US
Joachim Kupe - Davisburg MI, US
Russell H. Bosch - Gaines MI, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F01N 3/00

US Classification:

60295, 60274, 60286, 60289, 60297, 60311

Abstract:

A diesel exhaust gas system includes a diesel particulate filter (DPF), a trap for nitrogen oxides (LNT), a hydrocarbon catalytic reformer for generating reformate, and an air supply. A method for controlling the rate of burn of soot in a DPF limits the oxygen percentage in the exhaust to about 6%. The LNT may be located ahead of the DPF in the exhaust line. Reformate is directed with exhaust through the LNT. The second flow of air cools the exhaust gas and thereby prevents overheating of the DPF substrate. The DPF also may be located ahead of the LNT. Reformate is controllably combusted by the second air flow in the DPF, reducing the oxygen percentage to about 6%, thus limiting the rate at which soot in the DPF can burn and thereby preventing overheating of the DPF substrate.

US Patent:

7644578, Jan 12, 2010

Filed:

Nov 7, 2005

Appl. No.:

11/268304

Inventors:

David A. Goulette - Marine City MI, US
Joseph V. Bonadies - Clarkston MI, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F01N 3/00

US Classification:

60286, 60295, 60297, 60303, 60311

Abstract:

A vehicle exhaust aftertreatment system for controlling emissions from an engine includes, in serial order: an exhaust outlet from the engine, an exhaust catalyst assembly that is in fluid communication with the exhaust outlet and includes a first NOcomponent coupled with a downstream oxidation catalyst, and a second NOadsorber that is downstream from and in fluid communication with the oxidation catalyst of the exhaust catalyst assembly.

US Patent:

7861517, Jan 4, 2011

Filed:

Nov 9, 2005

Appl. No.:

11/271716

Inventors:

David Goulette - Marine City MI, US
Joseph V. Bonadies - Clarkston MI, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F01N 3/00

US Classification:

60286, 60279, 60284, 60295, 60303

Abstract:

A method for controlling temperature of a catalyst. The method includes monitoring temperature of the catalyst and determining that the catalyst is outside of a catalyst operating temperature window. If the catalyst temperature is high enough for exothermic reaction to occur, reformate is injected into the catalyst. If the catalyst not high enough for exothermic reaction to occur, reformate is injected upstream of the catalyst and ignited.

US Patent:

8209969, Jul 3, 2012

Filed:

Jun 15, 2006

Appl. No.:

11/453352

Inventors:

David A. Goulette - Marine City MI, US
Kevin S. Hoyer - Grand Blanc MI, US
Daniel B. Hamilton - Grand Blanc MI, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F01N 3/10

US Classification:

60303, 60274, 60286, 60288, 60300, 431 5, 431248, 431350

Abstract:

A burner module for burning injected reformate mixed with engine exhaust in an exhaust pipe ahead of aftertreatment devices, comprising an exhaust flow divider that creates a localized region of exhaust flow for mixture of the reformate. The amount of reformate required to produce a burnable composition in the localized area is less than what is required in the prior art to provide the same composition over the entire cross-sectional region of the exhaust pipe. An igniter is provided within the localized region. Upon ignition of the reformate, the flow of reformate may be increased to the point of a stoichiometric mixture for the entire exhaust, to produce the maximum heat for warm up. The exhaust flow divider may comprise a divider tube mounted in the exhaust pipe or may be simply a protrusion from a wall of the exhaust pipe.

US Patent:

20030182930, Oct 2, 2003

Filed:

Mar 24, 2003

Appl. No.:

10/397051

Inventors:

David Goulette - Marine City MI, US
Joseph Bonadies - Clarkston MI, US

International Classification:

F01N003/00
F01N003/02

US Classification:

060/275000, 060/297000, 060/295000, 060/311000

Abstract:

An integrated non-thermal plasma reactor-diesel particulate filter exhaust treatment apparatus comprises a wall flow-type substrate including a plurality of alternating high voltage and ground electrode layers and filter layers disposed between said high voltage and ground electrode layers . Channels extending through the electrode layers are plugged to prevent exhaust flow. A portion of the exhaust channels extending through the filter layers are plugged such that each channel is plugged only at one end or . During operation, a plasma is generated in the filter layers . An exhaust stream is passed through the filter channels and nitrogen oxides in the exhaust stream are converted in the plasma primarily to NOwhile particulate matter in the exhaust stream is captured in the porous channel walls . The filter is continuously regenerated by NOformed in the plasma. NO byproduct from the filter regeneration is converted back into NOvia plasma.

US Patent:

20040188238, Sep 30, 2004

Filed:

Mar 28, 2003

Appl. No.:

10/402209

Inventors:

Mark Hemingway - Columbia Ville MI, US
David Goulette - Marine City MI, US
Thomas Thoreson - Brighton MI, US

International Classification:

B01D053/56
B01J019/08
B01J019/12

US Classification:

204/164000, 423/239100, 422/186070

Abstract:

A system for concurrent particulate and NOx control in a combustion exhaust stream includes a particulate filter for trapping particulate matter in the exhaust stream; a non-thermal plasma reactor connected downstream of the particulate filter for further treating the exhaust stream; and a catalytic converter connected downstream of the non-thermal plasma reactor for reducing nitrogen oxides in the plasma treated exhaust stream. The system further includes an ozone generating device associated with but thermally insulated from the non-thermal plasma reactor for generating and discharging ozone to the combustion exhaust stream to create an ozone and NOenriched exhaust stream. The ozone and NOenriched exhaust stream is fed into the filter to regenerate the filter by oxidizing particulate matter trapped in the filter. The ozone generating device and the non-thermal plasma reactor are connected to a single high voltage power source thereby reducing system complexity and cost.

US Patent:

20080314367, Dec 25, 2008

Filed:

Jun 22, 2007

Appl. No.:

11/821306

Inventors:

David A. Goulette - Marine City MI, US
Oscar A. Lecea - Grand Blanc MI, US

International Classification:

F02M 51/00
F16K 31/02

US Classification:

123472, 25112901

Abstract:

A method for modified pulsed control of an electromechanical actuator in accordance with the invention comprising the steps of a) setting a common time length for all of the pulses in a pulse train, and b) varying (modulating) the number of such pulses per unit time (repetition rate) by varying the length of time between pulses in the train. Such control is defined herein as pulse-density modulation, or PDM. Especially in applications having a relatively low percent duty cycle if controlled by the prior art Pulse Width Modulation (PWM), PDM control results in more accurate control of an actuator, with higher resolution. The method is especially useful in controlling flow of a fluid, through a valve, such as a fuel injector, and especially at relatively low flow rates at high supply pressures P in the fluid supply.

US Patent:

20100146940, Jun 17, 2010

Filed:

Dec 17, 2008

Appl. No.:

12/337136

Inventors:

David A. Goulette - Marine City MI, US
Oscar A. Lecea - Grand Blanc MI, US
Bob X. Li - Grand Blanc MI, US
Mark R. McClanahan - Goodrich MI, US

Assignee:

DELPHI TECHNOLOGIES, INC. - Troy MI

International Classification:

F01N 3/18
G05D 23/12

US Classification:

60286, 236100

Abstract:

A variable buoyancy heater is provided. It comprises variable buoyancy float that includes a variable volume element. A first fluid is contained within the variable volume element and a heating element that is integral with the variable buoyancy float is provided. The heater is arranged to heat the first fluid wherein the variable volume element expands based on a temperature increase from the heating element, such that the variable buoyancy float becomes positively buoyant when the variable volume element expands and negatively buoyant when the heating element is off.