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US 12,523,166 B2Granted
Internal combustion engine with improved oil pump arrangement
AssigneeASF Technologies (Australia) Pty Ltd
InventorsGraham Harry Fountain, Emmanuel Kavarnos, Dimitrios Psonis, Richard Terrence Tamba
Life of this patent
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Abstract
An internal combustion engine, including a piston, a cylinder, and an output shaft, wherein the piston is arranged for reciprocating motion within the cylinder, driven by combustion, and the piston is coupled to the output shaft by a coupling such that said reciprocating motion of the piston drives rotation of the output shaft, wherein the engine further includes an oil pump arrangement having a multi-stage regulator.
Claims20
An internal combustion engine having a horizontally-opposed cylinder arrangement, comprising:
- at least a pair of pistons associated with respective pair of cylinders of the horizontally-opposed cylinder arrangement;
- an output shaft, wherein each of the pistons of the engine is arranged for reciprocating motion within a respective one of the cylinders of the cylinder arrangement, driven by combustion, and the pistons are coupled to the output shaft by a coupling such that said reciprocating motion of the piston drives rotation of the output shaft;
- and
- a lubrication circuit including an oil pump, an oil sump, and a multi-stage regulator arrangement, wherein excess oil generated by the oil pump at increased engine speeds is diverted to piston sprays of the engine by the multi-stage regulator arrangement.
1 more element
Dependencies are inferred from the claim text.