Engine crankcase breather with mesh filter

US9308481B2 · kind B2 · utility

Assignee

• Caterpillar Inc. · US

Inventors

• Seth Evan Slaughter · Peoria, US
• Shailendra Kardile · Peoria, US
• Kathleen Nackers · East Peoria, US
• Andreia Balan · Dunlap, US
• Jason Rex Dare · Peoria, US
• Eric Nathan Lucas · Nashville, US
• Christopher David Moore · Peoria, US

Key dates

• Filing date: Jul 12, 2013
• Grant date: Apr 12, 2016
• Expiry date: Oct 29, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M25/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An engine crankcase breather includes a housing having a lower end including an inlet opening and an upper end including an outlet opening. The inlet opening lies in a horizontal plane and the outlet opening lies in a vertical plane. A mesh filter is positioned within the housing and includes opposing inlet and outlet faces defining a mesh filter thickness. The inlet and outlet faces are parallel to the inlet opening and are positioned below a central axis through the outlet opening. A bottom wall of the housing defines a portion of the lower end and includes a downward slope toward a lip defining the inlet opening. The mesh filter is spaced above the bottom wall. The engine crankcase breather also includes a plurality of oil return openings through the lip.