Patent · US Active

Reciprocating internal-combustion engine with direct fuel injection by means of an injector arranged on the intake side

US7395806B2 · kind B2 · utility

1Cited by

7References

13Claims

0Family size

Assignee

FEV MOTORENTECHNIK GMBH · DE

Inventors

Jorg Ballauf · Wettstetten, DE
Jose Geiger · Hauset, BE
Martin Winter · Mülheim an der Ruhr, DE

Key dates

Filing date	May 22, 2006
Grant date	Jul 8, 2008
Priority date	—
Expiry date	Sep 8, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A reciprocating internal-combustion engine having at least two gas intake ports (3) with gas intake valves (6), at least one gas exhaust port (4) with a gas exhaust valve (7) and at least one ignition device (14) per cylinder (1) is provided. The engine can also include a combustion chamber (1.1) formed by a cylinder cover (2.1) and a crown (11.1) of a piston (11). A trough-shaped recess (12) can be provided in the piston crown (11.1) and is bounded by a trough base (12.1) and side walls (16). The recess (12) can intersect a roof ridge (11.2) on the piston crown (11.1) and the trough base (12.1) slopes towards a fuel injection nozzle (8) and ends in a wall zone (12.2) extending steeply upwards on its side facing the fuel injection nozzle (8).

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