Lubricating oil fill line for an internal combustion engine, involving a oil mist sediment tank

US6089213A · kind A · utility

Assignee

• Knecht Filterwerke GmbH · DE

Inventors

• Mike Laudien · Gerlingen, DE
• Rolf Mohle · Bretzfeld, DE

Key dates

• Filing date: Jul 28, 1999
• Grant date: Jul 18, 2000
• Expiry date: Jul 28, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01M2013/0488
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

On a lubricating oil fill line for an internal combustion engine, provided with an oil mist sediment tank installed in the fill area and designed to ensure the crank case ventilation, the oil flowing out of the oil mist sediment tank is recycled by the gravity force back to the crank case as return oil. This system has the following features: for the return oil is provided a return line from the oil mist sediment tank; the distal end of this return line relative to the sediment tank leads to the bottom area of a transfer tank especially designed to receive and recycle the return oil; a gas pressure is exerted at the overflow outlet of the overflow tank which corresponds to that to which the oil mist is submitted when back to the sediment tank. Such a facility permits to save space during the manufacture process. Furthermore, ensuring a differential pressure between the air to be purified inside the crank case at the oil mist sediment tank inlet, on the one hand, and the precipitated oil at the oil mist sediment tank outlet, obtains good oil sedimentation.