ENGINE BLOWER SCROLL
First Claim
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1. A blower system for an engine, comprising:
- a base of a blower scroll, the base coupled to an engine crankcase, the base having a bottom wall with an opening formed therein to accommodate an end of a crankshaft, and the base further having a sidewall extending away from the crankcase;
a blower housing fastened to the base without the use of threaded fasteners, wherein the blower housing and the base form a chamber having an inlet and an outlet; and
a fan within the chamber and driven by the crankshaft, the fan configured to blow air through the outlet.
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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.
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Citations
20 Claims
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1. A blower system for an engine, comprising:
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a base of a blower scroll, the base coupled to an engine crankcase, the base having a bottom wall with an opening formed therein to accommodate an end of a crankshaft, and the base further having a sidewall extending away from the crankcase; a blower housing fastened to the base without the use of threaded fasteners, wherein the blower housing and the base form a chamber having an inlet and an outlet; and a fan within the chamber and driven by the crankshaft, the fan configured to blow air through the outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An engine, comprising:
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a base of a blower scroll, the base coupled to an engine crankcase, and the base having a bottom with an opening formed therein and a sidewall extending away from the crankcase; a blower housing coupled to the base, wherein the blower housing and the base together form a chamber of the blower scroll; a fan extending within the chamber, the fan driven by a crankshaft extending through the opening in the base, wherein the chamber has an outlet oriented to direct a flow of air over a cylinder block; and a fuel tank coupled to the sidewall of the base. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An engine, comprising:
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a crankcase; a crankshaft extending from the crankcase; a cylinder block; a blower scroll fastened to the crankcase, wherein the blower scroll includes a bottom and a sidewall, wherein the bottom has an opening through which the crankshaft extends, and wherein the sidewall extends from the bottom away from the crankcase and includes an outlet opening adjacent the cylinder block; a blower housing fastened to the blower scroll without threaded fasteners, wherein the blower housing, the bottom, and the sidewall define a blower scroll chamber; and a fan coupled to the crankshaft and located in the blower scroll chamber such that substantially all of the air moved by the fan exits the blower scroll chamber through the outlet opening. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification