Scott E Parrish

US Patent:

6349885, Feb 26, 2002

Filed:

Mar 31, 2000

Appl. No.:

09/540698

Inventors:

Scott E. Parrish - Kenosha WI

Assignee:

Bombardier Motor Corporation of America - Grant FL

International Classification:

F02D 106

US Classification:

239 5, 239453, 23953312, 29890142, 29890143

Abstract:

A fuel injector nozzle includes a nozzle body and a poppet disposed in the body for reciprocating movement. The body has an internal bore surrounding the poppet. The internal bore tapers in a constant angle of taper from a front seating region to a fuel reservoir region. The poppet has a corresponding surface which diverges slightly from the bore. The surfaces of the bore and poppet form flow control surfaces which terminate in a sharp-edged orifice at the front face of the nozzle. When the poppet is displaced to an open or flow position, fuel is accelerated to the orifice and atomized into a combustion chamber. The poppet surface being formed so as to properly direct fuel after the poppet surface is machined.

US Patent:

6626381, Sep 30, 2003

Filed:

Nov 8, 2001

Appl. No.:

10/005865

Inventors:

Scott E. Parrish - Farmington Hills MI

Assignee:

Bombardier Motor Corporation of America - Grant FL

International Classification:

F02M 6100

US Classification:

2395337, 23953312

Abstract:

A technique is provided for enhancing fluid flow in an outwardly opening nozzle assembly. A flow enhancement assembly is provided adjacent an exit from an outwardly opening poppet to provide desired spray characteristics. The flow enhancement assembly includes converging and diverging passages and a plurality of ports to form a spray.

US Patent:

6748872, Jun 15, 2004

Filed:

Nov 8, 2001

Appl. No.:

10/005769

Inventors:

Scott E. Parrish - Farmington Hills MI

Assignee:

Bombardier Motor Corporation of America - Grant FL

International Classification:

B05B 500

US Classification:

123305, 239464, 23953315, 239584, 123472

Abstract:

A technique is provided for controlling fluid flow characteristics in a nozzle assembly. An outwardly opening poppet is movably disposed in an axial conduit to control fluid flow through a forward portion of the axial conduit. A fluid conduit is coupled to the forward portion at an angle configured to provide a desired degree of fluid swirl through the forward portion. The outwardly opening nozzle assembly produces a spray having geometrical characteristics correlated to the desired degree of fluid swirl.

US Patent:

6830028, Dec 14, 2004

Filed:

Jun 15, 2000

Appl. No.:

09/594310

Inventors:

Scott E. Parrish - Kenosha WI

Assignee:

Bombardier Recreational Products Inc. - Valcourt

International Classification:

F02B 500

US Classification:

123305, 123295

Abstract:

A technique is provided for regulating gas entrainment into a fuel spray in a fuel-injected engine. The fuel spray issues from a nozzle positioned in a gas entrainment shrouding recess, such as in the cylinder head. The depth and elevational profile of the recess are selected to provide a desired degree of gas entrainment. By reducing gas entrainment, a desired spray shape may be established or maintained, such as a hollow cone. More gas entrainment may be provided by altering the recess geometry, and that of the combustion chamber surrounding the recess, to modify the spray or the spray distribution, such as to partially or fully fill a spray cone.

US Patent:

7441537, Oct 28, 2008

Filed:

Oct 16, 2006

Appl. No.:

11/549682

Inventors:

Mark S. Huebler - Shelby Township, Macomb County MI, US
Scott E. Parrish - Farmington Hills MI, US
Gerald J. Schimelfening - Shelby Township MI, US
Andreas M. Lippert - Rochester Hills MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

F02B 3/00
F02D 41/38

US Classification:

123299, 123305

Abstract:

A method and apparatus to operate a spray-guided spark-ignition direct fuel injection internal combustion engine are provided. The invention comprises injecting a first quantity of fuel during a combustion cycle. Spark ignition is initiated, and, injection of a second quantity of fuel is controlled effective to propagate a flame kernel generated by the spark ignition, after the initiation of the spark ignition during the combustion cycle.

US Patent:

7610900, Nov 3, 2009

Filed:

Oct 16, 2006

Appl. No.:

11/549691

Inventors:

Andreas M. Lippert - Rochester Hills MI, US
Ronald M. Otto - Rochester Hills MI, US
Scott E. Parrish - Farmington Hills MI, US
Arun S. Solomon - Rochester Hills MI, US
Ansis Upatnieks - Ann Arbor MI, US
Yangbing Zeng - Rochester Hills MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

F02M 69/04

US Classification:

123445, 123299, 123300

Abstract:

A method and article of manufacture are provided to operate a spray-guided, spark-ignition, direct fuel injection engine, including injecting a first fuel pulse during a combustion cycle, and initiating spark ignition by energizing a spark igniter. A second fuel pulse is injected during the combustion cycle effective to form an ignitable fuel-air mixture proximal to the spark igniter during a period in time whereat the spark igniter is energized. A preferred elapsed time between an end of the first fuel pulse and start of the spark ignition is determined based upon engine load.

US Patent:

20030084870, May 8, 2003

Filed:

Nov 8, 2001

Appl. No.:

10/005838

Inventors:

Scott Parrish - Farmington Hills MI, US

International Classification:

F02B005/00

US Classification:

123/305000, 239/533700

Abstract:

A technique is provided for homogenizing fluid flow in an outwardly opening nozzle assembly. A cavity is provided in a fluid flow passage adjacent a spray exit of an outwardly opening poppet to dampen fluid flow variances prior to spray formation at the spray exit. Accordingly, the spray formed at the spray exit has a substantially uniform distribution of fluid droplets.

US Patent:

20030085308, May 8, 2003

Filed:

Nov 8, 2001

Appl. No.:

10/005671

Inventors:

Scott Parrish - Farmington Hills MI, US

International Classification:

F02M051/00

US Classification:

239/585100

Abstract:

A technique is provided for homogenizing fluid flow in a nozzle assembly, which has an outwardly opening poppet disposed in a conduit. A fluid passage is provided independently from the conduit to supply fluid to a forward portion of the conduit adjacent a spray formation exit. The fluid passage has a desired geometry configured to facilitate fluid flow homogenization through the nozzle assembly. Accordingly, the spray produced at the spray formation exit has a substantially uniform distribution of fluid droplets.