Method of supplying fuel to engine

US9644551B2 · kind B2 · utility

Assignee

• Caterpillar Motoren GmbH & Co. KG · DE

Inventors

• Hannes Marscheider · Kiel, DE
• Eike Joachim Sixel · Kiel, DE
• Daniel Wester · Felde, DE
• Thorsten TUEXEN · Gettorf, DE

Key dates

• Filing date: Jun 29, 2015
• Grant date: May 9, 2017
• Expiry date: Nov 18, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/30
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for supplying fuel to an engine is disclosed. The method may include regulating a gas admission valve disposed between a gaseous fuel line and a cylinder intake port to reduce flow of gaseous fuel to the cylinder. The method may also include closing a shut-off valve disposed between a gaseous fuel reservoir and the gaseous fuel line to restrict flow of gaseous fuel from the gaseous fuel reservoir to the gaseous fuel line. Further, the method may include actuating an inert gas inlet valve disposed between an inert gas reservoir and the gaseous fuel line to supply inert gas to the gaseous fuel line and flush the gaseous fuel in the gaseous fuel line into the cylinder via the gas admission valve. Additionally, the method may include closing the inert gas inlet valve to restrict supply of inert gas to the gaseous fuel line.