Internal combustion engine and method for operating an internal combustion engine

US10746143B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Georg Louven · Neuwied, DE
• Klemens Grieser · Langenfeld, DE
• Oliver Berkemeier · Bensberg, DE
• Martin Wirth · Hitzendorf, AT
• Ulrich Kramer · Bensberg, DE
• Helmut Hans Ruhland · Eschweiler, DE

Key dates

• Filing date: Aug 3, 2017
• Grant date: Aug 18, 2020
• Expiry date: Nov 24, 2037

Classification

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

Abstract

Examples are provided for switching an engine fuel supply. One example system includes a direct-injection engine including a cylinder, an LPG tank for storing a LPG fuel, a CNG tank for storing a CNG fuel, a gas switching valve, a high-pressure pump connected between the LPG tank and the gas switching valve, a pressure-limiting valve connected between the CNG tank and the gas switching valve, a fuel distributor configured to be supplied with one or more of the LPG fuel and the CNG fuel via the gas switching valve, an LPG injection valve coupled to the cylinder, a CNG injection valve coupled to the cylinder, the LPG injection valve and the CNG injection valve configured to be supplied with fuel via the fuel distributor; and a controller configured to control the gas switching valve depending on an aggregate state of the fuel disposed in the fuel distributor.