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US 2006/0185628 A1Published application
Power unit
AssigneeKioritz Corporation
InventorsJunichi Akaike, Tomoko Tada, Tadashi Kamoshita
Life of this patent
Estimating the term…
Abstract
To achieve improved cooling in a power unit, a first fan is coupled with an end of a crankshaft of an internal combustion engine to cool at least a cylinder of the internal combustion engine, and a second fan is coupled with another end of the crankshaft to cool at least the cylinder. The cylinder is cooled by the air supplied from the first fan and the second fan.
Claims9
A power unit including an air-cooled internal combustion engine comprising:
- a first fan coupled with an end of a crankshaft of the internal combustion engine for cooling at least a cylinder of the internal combustion engine;
- and
- a second fan coupled with another end of the crankshaft for cooling at least the cylinder.
An internal combustion engine in combination with a working machine, the internal combustion engine comrising:
- a cylinder with a piston disposed therein;
- and
- a crankshaft connected to the piston, the crankshaft having a first end and a second end, the first end of the crankshaft having connected thereto a first fan for cooling the cylinder, and the second end of the crankshaft having connected thereto a second fan also for cooling the cylinder, wherein the second fan is arranged integrally with a ratchet pawl holder for transmitting the rotation of a starter reel comprising a recoil starter.
Dependencies are inferred from the claim text.