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US 12,631,252 B2Granted
Piston assembly and associated components, systems, and method
AssigneeTranscend Energy Group, LLC
InventorJon Woodward
Life of this patent
Estimating the term…
Abstract
A piston assembly includes a piston head. The piston assembly further includes an upper connecting rod rotatably coupled to the piston head. The piston assembly also includes a shoe positioned between the upper connecting rod and an inner wall of the piston head.
Claims18
A piston assembly comprising:
- a piston head;
- an upper connecting rod rotatably coupled to the piston head;
- and
- a shoe positioned between the upper connecting rod and an inner wall of the piston head, the shoe having a convex piston interface surface in contact with the inner wall of the piston head and a convex rod interface surface in contact with the upper connecting rod, wherein a surface area of the convex piston interface surface is greater than a surface area of the convex rod interface surface.
1 more element
An engine comprising:
- a cylinder;
- a crankshaft;
- and
- a piston assembly disposed within the cylinder, the piston assembly comprising:
- a piston head;
- an upper connecting rod rotatably coupled to the piston head;
- a lower connecting rod coupled between the upper connecting rod and the crankshaft;
- and
- a shoe slidably coupled between a recess in the upper connecting rod and a skirt of the piston head, where a rod interface surface of the shoe slidably connected to the recess is smaller than a skirt interface surface of the shoe slidably connected to the skirt;
- wherein the upper connecting rod is configured to rotate in small increments relative to the shoe.
7 more elements
An upper connecting rod of a piston assembly, the upper connecting rod comprising:
- a piston connection point;
- a lower rod connection point;
- and
- a curved recess defined in an outer edge of the upper connecting rod, the curved recess defining an arc having an angle greater than 60 degrees, the curved recess configured to receive an interfacing element between the upper connecting rod and a piston, the curved recess positioned between the piston connection point and the lower rod connection point and positioned closer to the piston connection point than the lower rod connection point.
1 more element
Dependencies are inferred from the claim text.