Lubrication device for vertical crank shaft engine
AssigneeKawasaki Jukogyo Kabishiki Kaisha
InventorsShinichi Tamba, Yoshiro Yamane, Tetsuhiro Yamakawa
Life of this patent
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Abstract
A lubrication device for a vertical crank shaft engine. A portion of a crank case, which houses the crankshaft with a small clearance at a given range of the lower side of the crankshaft extending vertically and expands upwards of the housing portion, forms an oil reservoir between the crankshaft, and a pumping member fixed to the crankshaft for rotation is provided in the lower portion of the oil reservoir.
Claims6
A lubrication device for an engine having a crank case and a crank shaft, said crank shaft extending vertically in said crank case and having a lower portion thereof supported by a bearing in said crank case;
- said lubrication device comprising:
- an oil reservoir formed between said crank case and said crank shaft and including a lowest portion just above said bearing, a discharge port in the form of a relatively small void at said bearing, and a pumping member having a fixing portion fixed to a peripheral portion of said crank shaft for rotation therewith and located in said lowest portion just above said void, said pumping member having blade means for pressurizing oil in said reservoir into said void, said blade means depending downwardly from a horizontal plane defining a top member of the pump.
Dependencies are inferred from the claim text.