Fuel system for an LPG engine

US6976455B2 · kind B2 · utility

Assignees

• Linde GmbH · DE
• VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

• Jörn Mey · Eckernförde, DE
• Andreas Kistner · Merkendorf, DE
• Andreas Firsching · Aschaffenburg, DE
• Frank Wucherpfenning · Bitterfeld-Wolfen, DE
• Joachim Seydell · Gifhorn, DE
• Iraklis Avramopoulos · Berlin, DE

Key dates

• Filing date: Nov 6, 2003
• Grant date: Dec 20, 2005
• Expiry date: Nov 6, 2023

Classification

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

Abstract

A fuel system for an internal combustion engine (12) operated with fuel gas includes an evaporator (1) in which the liquid fuel gas is transformed by the addition of heat into a gaseous state. The evaporator (1) has a first heating device (13) configured to transmit a portion of the waste heat of the internal combustion engine (12) to the fuel gas in the evaporator (1). The evaporator (1) has a second heating device, by means of which the fuel gas in the evaporator (1) can be heated regardless of the condition of the internal combustion engine (12). The second heating device (14) can include an electrical heating element, e.g., a PTC heating element.