Direct injection diesel motor with tumble-supported combustion process

US6336438B1 · kind B1 · utility

Assignee

• FEV MOTORENTECHNIK GMBH · DE

Inventors

• Manfred Dürnholz · Oberstenfeld, DE
• Michael Kruger · Aachen, DE
• Rainer Kwasny · Aachen, DE
• Frank Wunderlich · Netphen, DE

Key dates

• Filing date: Feb 22, 2000
• Grant date: Jan 8, 2002
• Expiry date: Feb 22, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The process relates to a diesel engine, the individual cylinders (1) of which are respectively provided with a fuel injection device, having an injector (21) that discharges into the combustion chamber (2) of the cylinder (1), said cylinders comprising at least one discharge valve (9) and at least one admission valve (7) for each cylinder, to which are assigned respectively extending admission channels (6, 8) in the cylinder head (3), which channels empty at a slant into the combustion chamber (2), wherein the combustion chamber (2) of a cylinder (1) that is limited by the cylinder head (3) on the one side and the piston bottom (13) on the other side is designed such that the charge movement inside the combustion chamber (2) is a rotational movement around the cylinder axis (17), having a value CU/CA≦0.5 and a tumble movement around the lateral axis having a value of CT/CA≧0.5, and wherein the injector is provided with at least one injector opening.