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US 11,293,312 B2Granted
Small air-cooled engine assembly with dry sump lubrication system
AssigneeBriggs & Stratton Corporation
InventorsAdam J. Hellman, John Schneiker, Tim Kwiatkowski, Casey Groh, Robert Price, Ryan Sullivan, Gary Johnson
Life of this patent
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Abstract
An engine assembly includes a small air-cooled engine and a dry sump lubrication system including an external oil reservoir, wherein the dry sump lubrication system has an overall oil capacity that provides at least five hundred hours of engine oil life.
Claims12
An engine assembly, comprising:
- a small air-cooled engine having two or fewer cylinders;
- and a dry sump lubrication system including an external oil reservoir and a crankcase chamber, wherein the external oil reservoir has an oil fill capacity of at least five quarts, wherein a maximum volume of oil in the crankcase chamber is between 2.5 to 3 quarts;
- wherein the overall oil capacity of the external oil reservoir and the crankcase chamber provide five hundred hours of engine oil life between routine oil changes.
The engine assembly of 3, wherein the reservoir volume is greater than five quarts and a recommended oil fill capacity of the oil chamber is five quarts.
Dependencies are inferred from the claim text.