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US 2026/0036072 A1Published application
Piston and internal combustion engine
AssigneeIsuzu Motors Limited
InventorYasuhiro ISHIKAWA
Life of this patent
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Abstract
A piston includes a skirt portion extending downward from a lower end portion of an outer circumference of a piston head, and a coupling portion coupled to a crankshaft that converts reciprocating motion into rotational motion via a connecting rod. The skirt portion includes a convex portion that protrudes toward the coupling portion from a lower portion of an inner peripheral surface opposite to an outer peripheral surface facing the cylinder, the convex portion being capable of retaining the lubricating oil.
Claims10
A piston that reciprocates within a cylinder, the piston comprising:
- a skirt portion extending downward from a lower end portion of an outer circumference of a piston head;
- and
- a coupling portion coupled to a crankshaft that converts reciprocating motion into rotational motion via a connecting rod, wherein the skirt portion includes a convex portion that protrudes toward the coupling portion from a lower portion of an inner peripheral surface opposite to an outer peripheral surface facing the cylinder, the convex portion being capable of retaining lubricating oil.
An internal combustion engine comprising:
- a cylinder;
- and
- a piston that reciprocates within the cylinder, wherein the piston includes:
- a skirt portion (36A) extending downward from a lower end portion of an outer circumference of a piston head;
- and
- a coupling portion coupled to a crankshaft that converts reciprocating motion into rotational motion via a connecting rod, among which the skirt portion includes a convex portion that protrudes toward the coupling portion from a lower portion of an inner peripheral surface opposite to an outer peripheral surface facing the cylinder, the convex portion being capable of retaining lubricating oil.
3 more elements
Dependencies are inferred from the claim text.