Keith A Schulz

US Patent:

20120205469, Aug 16, 2012

Filed:

Aug 16, 2011

Appl. No.:

13/210981

Inventors:

William Yunbiao Shen - Westmont IL, US
Keith Steven Schulz - Columbia SC, US
Joseph Angelino - Poquoson VA, US

Assignee:

International Engine Intellectual Property Company LLC - Warrenville IL

International Classification:

F02M 61/10

US Classification:

239584

Abstract:

A fuel injector for an internal combustion engine comprises a fuel intensification section and a needle control section. The fuel intensification section has an inlet and an outlet. The fuel intensification section receives fuel at a first pressure at the inlet and provides fuel at one of the first and second pressures at the outlet. The second pressure is greater than the first pressure. The needle control section has an injector needle and an injector needle control valve. The injector needle has a first position and a second position. The injector needle is disposed in the second position to allow fuel to flow from the fuel injector to the internal combustion engine. The injector needle control valve controls movement of the injector needle. All of the fuel that flows from the fuel injector to the internal combustion engine passes through the fuel outlet of the fuel intensification section.

US Patent:

20150014427, Jan 15, 2015

Filed:

Feb 6, 2012

Appl. No.:

14/374637

Inventors:

William Yunbiao Shen - Westmont IL, US
Yan Tan - Plainfield IL, US
Qursheed Hussain Mohammed - Columbia SC, US
Keith Steven Schulz - Columbia SC, US

Assignee:

International Engine Intellectual Property Company, LLC - Lisle IL

International Classification:

F02M 55/00
F02M 63/00

US Classification:

239 5, 239584

Abstract:

A control valve of a fuel injector includes a generally cylindrical control valve housing having an axis, and a control valve body disposed within the control valve housing. An inlet throttle passage is in fluid communication with the control valve housing and is oriented to be generally tangential to the control valve housing.