Scott M 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:

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:

61095494, Aug 29, 2000

Filed:

Mar 12, 1999

Appl. No.:

9/268077

Inventors:

Martin L. Radue - Kenosha WI
Scott E. Parrish - Kenosha WI
Daniel E. Peltier - Kenosha WI
Wolfram Hellmich - Munich, DE

Assignee:

Outboard Marine Corporation - Waukegan IL

International Classification:

F02M 6100

US Classification:

23953312

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.