Inventors:
Jason J. Raasch - Cedarburg WI, US
Ray Matuszak - New Berlin WI, US
Elliot Matel - Milwaukee WI, US
Assignee:
BRIGGS & STRATTON CORPORATION - Wauwatosa WI
International Classification:
F01M 11/04, F02N 11/00, F16N 33/00
Abstract:
An apparatus for draining oil from an engine. The apparatus includes an engine having an engine housing, crankshaft, a piston, and an oil reservoir, an engine starting mechanism configured to engage the crankshaft and piston, a check valve configured to prevent pressure in a crankcase from escaping and configured to allow filtered air into the engine, and a selector valve configured to open a flow path between the check valve and a vent so oil can be drained.