skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dual mode fuel injection system and fuel injector for same

Patent ·
OSTI ID:1175497

A fuel injection system has the ability to produce two different spray patterns depending on the positioning of a needle control valve member. Positioning of the needle control valve member determines which of the two needle control chambers are placed in a low pressure condition. First and second needle valve members have closing hydraulic surfaces exposed to fluid pressure in the two needle control chambers. The injector preferably includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by the first and second needle valve members.

Research Organization:
Caterpillar Inc., Deerfield, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC05-00OR22806
Assignee:
Caterpillar Inc (Peoria, IL)
Patent Number(s):
6,945,475
Application Number:
10/310,701
OSTI ID:
1175497
Country of Publication:
United States
Language:
English