Internal combustion engine and lubrication system thereof

US12286924B2 · kind B2 · utility

Assignee

• BRP-ROTAX GMBH & CO. KG · AT

Inventors

• Robert Kindl · Wels, AT
• Roland Spatzenegger · Bad Hall, AT
• Tomas Andor · Hepberg, DE
• Markus Hochmayr · Krenglbach, AT
• Thomas Eder · Traun, AT
• Branko Arapovic · Wels, AT
• Thomas Kritzinger · Frankenburg am Hausruck, AT
• Michael Zunghammer · Fallsbach, AT

Key dates

• Filing date: Aug 17, 2023
• Grant date: Apr 29, 2025
• Expiry date: Aug 17, 2043

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B2075/1812
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An internal combustion engine for a vehicle and a method for assembling an internal combustion engine. The engine includes a crankcase; a crankshaft disposed at least in part in the crankcase; a cylinder block connected to the crankcase, the cylinder block defining at least one cylinder; at least one piston operatively connected to the crankshaft and disposed in a corresponding cylinder; an oil tank defining an oil reservoir configured to contain oil therein; and a dry-sump lubrication system comprising a pump module for circulating oil throughout the engine. The pump module includes a pump shaft rotatable about a pump shaft axis; at least one pressure pump mounted to the pump shaft and configured to pump oil from the oil tank; and at least one scavenge pump mounted to the pump shaft and configured to draw oil from a respective part of the engine.