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US 8,910,597 B2Granted
Reciprocating piston engine
OwnerManousos Pattakos, Efthimios Pattakos +2inventors
InventorsManousos Pattakos, Efthimios Pattakos, Paraskevi Pattakou, Emmanouel Pattakos
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Abstract
A single-crankshaft single-cylinder fully-balanced opposed piston engine module that provides extra time for the injection and the combustion of the fuel.
Claims11
An opposed piston internal combustion engine having a basic module comprising:
- a combustion chamber defined within a cylinder,
- a pair of opposed pistons slidably fitted in said cylinder and sealing two sides of the combustion chamber, said pair of opposed pistons comprising a first piston and a second piston,
- a crankshaft having a plurality of crankpins,
- said first piston is comprising at a first end a piston crown contained in the cylinder, said first piston is comprising at a second end a first wrist pin, said first piston is comprising arms interconnecting said piston crown and said first wrist pin, wherein said arms, at the first end side of the piston, are extending laterally, with respect to the cylinder, outward, then longitudinally in-line with the cylinder to the side opposite the cylinder from the piston crown, and then inward laterally towards the wrist pin to form an opening which surrounds the cylinder and crankshaft,
- a first connecting rod drivingly coupling said first piston to a first crankpin of said crankshaft, said first connecting rod being pivotally mounted at an end to said first wrist pin,
- a second connecting rod drivingly coupling said second piston to a second crankpin of said crankshaft, said second connecting rod being pivotally mounted at an end to a second wrist pin, said second wrist pin moving in unison with said second piston, and
- a high pressure in the combustion chamber is loading with compressive loads said first connecting rod and said second connecting rod.
4 more elements
A through-scavenging two-stroke engine comprising at least:
- a crankcase,
- a cylinder forming a combustion chamber therein, the cylinder is mounted on the crankcase,
- a cylinder head sealing one side of the combustion chamber, the cylinder head is comprising an exhaust port and an exhaust poppet valve controlling the exhaust port,
- a crankshaft rotatably mounted into the crankcase,
- a piston slidably fitted in said cylinder, the piston is comprising a piston crown and a piston skirt, the piston crown is separating the combustion chamber from a space underside the piston crown,
- the piston crown is comprising an intake port and an intake poppet valve having a restoring valve spring, wherein the intake poppet valve is controlling the communication of the combustion chamber, through the intake port, with the space underside the piston crown,
- a pair of connecting rods disposed at the two sides of the cylinder, outside the cylinder footprint, are coupling the piston with the crankshaft, and
- an oil scraper ring is sealing the space underside the piston crown from the crankcase.
5 more elements
Dependencies are inferred from the claim text.