Engine blower scroll
AssigneeBriggs & Stratton Corporation
InventorsCarl T. Tiefenthaler, Benjamin R. Miller, Chad J. Gartzke, John R. Schneiker, Greg Hupfer, David W. Branski
Life of this patent
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Abstract
A blower system for an engine includes a base of a blower scroll coupled to an engine crankcase. The base has a bottom wall with an opening sized to accommodate an end of a crankshaft. The base also has a sidewall extending away from the crankcase. The blower system further includes a blower housing fastened to the base, without the use of threaded fasteners. Together the blower housing and the base form a chamber having an inlet and an outlet. Also, the blower system includes a fan within the chamber. The fan is driven by the crankshaft and is designed to direct a flow of air through the outlet of the chamber.
Claims6
An internal combustion engine, comprising:
- a crankcase;
- a crankshaft extending within the crankcase;
- a cylinder block coupled to the crankcase;
- a cylinder head covering an end of the cylinder block;
- an air intake for providing air to a combustion chamber;
- a breather comprising a one-way valve opening into a collection area and a conduit joining the collection area to the air intake;
- a blower scroll coupled to the crankcase, the blower scroll having a bottom with an opening formed therein,
- a fan within the blower scroll, the fan driven by the crankshaft extending through the opening in the bottom of the blower scroll,
- wherein the blower scroll directs air over the cylinder block and the cylinder head, and the blower scroll forms a wall of the collection area of the breather.
Dependencies are inferred from the claim text.