Internal combustion engine with a crankcase ventilation means

US11939895B2 · kind B2 · utility

Assignee

• FEV Group GmbH · DE

Inventors

• Werner Bick · Würselen, DE
• Ralf Bey · Aachen, DE
• Markus Ehrly · Aachen, DE
• Ralf Jans · Niederkrüchten, DE
• Christoph Biwer · Aachen, DE

Key dates

• Filing date: Dec 20, 2022
• Grant date: Mar 26, 2024
• Expiry date: Dec 20, 2042

Classification

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

Abstract

The invention relates to an internal combustion engine, comprising an intake path, a crankcase, an exhaust gas path and a crankcase ventilation means, wherein the crankcase ventilation means is open, closed or separate. The internal combustion engine according to the invention comprises an intake path, a crankcase, an exhaust gas path and an open crankcase ventilation means, wherein the open crankcase ventilation means comprises a first line and a second line, wherein the first line is designed to connect the exhaust gas path to the crankcase in order to guide exhaust gas out of the exhaust gas path to the crankcase, and wherein the second line is designed to connect the crankcase to the exhaust gas path in order to discharge exhaust gas and leakage gases located in the crankcase from the crankcase and to feed them to the exhaust gas path.