Engine operable in horizontal and vertical shaft orientations
AssigneeBriggs & Stratton Corporation
InventorJerry Schenkel
Life of this patent
Estimating the term…
Abstract
A small air-cooled internal combustion engine includes an aluminum engine block including a cylinder extending along a longitudinal cylinder axis and a block mounting surface, a piston configured to reciprocate within the cylinder, a crankshaft coupled to the piston and configured to rotate about a crankshaft axis in response to reciprocation of the piston, and an aluminum crankcase cover including a cover mounting surface. The block mounting surface contacts the cover mounting surface. The block mounting surface and the cover mounting surface are both positioned at an angle to the crankshaft axis and the angle is not 90 degrees.
Claims20
A small air-cooled internal combustion engine, comprising:
- an aluminum engine block including a cylinder extending along a longitudinal cylinder axis and a block mounting surface;
- a piston configured to reciprocate within the cylinder;
- a crankshaft coupled to the piston and configured to rotate about a crankshaft axis in response to reciprocation of the piston;
- and
- an aluminum crankcase cover including a cover mounting surface;
- wherein the block mounting surface contacts the cover mounting surface;
- and
- wherein the block mounting surface and the cover mounting surface are both positioned at an angle to the crankshaft axis and the angle is not 90 degrees.
A small air-cooled internal combustion engine, comprising:
- an engine block including a cylinder extending along a longitudinal cylinder axis and a block mounting surface;
- a piston configured to reciprocate within the cylinder;
- a crankshaft coupled to the piston and configured to rotate about a crankshaft axis in response to reciprocation of the piston;
- and
- a crankcase cover including a cover mounting surface;
- wherein the block mounting surface contacts the cover mounting surface;
- and
- wherein the block mounting surface and the cover mounting surface are both positioned at an angle to the crankshaft axis and the angle is not 90 degrees.
Dependencies are inferred from the claim text.