Vertical engine

Details Vertical engine Vertical engine

1995-09-28

1997-11-18

Solis, Erick R.

Internal-combustion engines

Lubricators

Crankcase, pressure control

184 618, F01M 1102

Patent

active

056876882

ABSTRACT:
In a vertical engine having a crankshaft directed in a vertical direction and a flywheel provided on a lower end of the crankshaft projected through a bottom wall of a crank chamber, the crank chamber is formed by a skirt section integral with a cylinder block and a split crankcase attached to the skirt section putting respective contacting faces together and an oil dropping hole is formed in a bearing wall section provided on the cylinder block side and forming a lowest crank bearing section within the crank chamber. The oil dropping hole communicates with an lower side of the bearing wall section and an upper side of the bearing wall section positioned within a lowest cylinder and is inclined downward from the cylinder side to the contacting face of the skirt section facing to the split crankcase. A flywheel space is formed under the bottom wall of the crank chamber and an oil pan is provided under the flywheel space. An oil return passage extending from the crank chamber to the oil pan detours around the flywheel space.

REFERENCES:
patent: 2357942 (1944-09-01), Farr et al.
patent: 4562797 (1986-01-01), Suzuki
patent: 4802871 (1989-02-01), Watanabe et al.
patent: 5090375 (1992-02-01), Hudson
patent: 5456230 (1995-10-01), Van Rens et al.
patent: 5524581 (1996-06-01), Rush, II et al.

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