Patent · US Expired

Direct injection engine system and start-up method for direct injection engine

US6990948B2 · kind B2 · utility

3Cited by
1References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 7, 2004
Grant dateJan 31, 2006
Priority date
Expiry dateJul 7, 2024

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/30
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An engine system is capable of switching between a first fuel injection mode, in which fuel is injected from a fuel injection valve 23 directly into a combustion chamber 6 in the compression stroke, and a second fuel injection mode, in which fuel is injected from the fuel injection valve 23 directly into the combustion chamber 6 in the intake stroke. A controller 30 determines the characteristic of the fuel that is supplied to the fuel injection valve 23, selects either the first fuel injection mode or the second fuel injection mode according to the fuel characteristic, and starts an engine 1 in the selected fuel injection mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.