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US 12,241,549 B2Granted
Piston pin and manufacturing method thereof
AssigneesHyundai Motor Company, Kia Corporation, Sinteron
InventorsHaksoo Kim, Byung Chan Kang, Dong Wook Park, Myeong Inn Na
Life of this patent
Estimating the term…
Abstract
A piston pin includes a pipe-shaped main body made of an iron-based sintered alloy. The piston pin is installed to penetrate an upper end of the connecting rod and the piston and the piston pin has an eccentric mass center in a circumferential direction.
Claims16
A piston pin comprising:
- a pipe-shaped main body made of an iron-based sintered alloy,
- wherein the piston pin is configured to be installed to penetrate an upper end of a connecting rod and a piston,
- wherein a mass center of the piston pin is eccentric in a circumferential direction,
- wherein the piston pin includes a first area and a second area divided in the circumstantial direction, and
- wherein the first area and the second area have different densities.
2 more elements
A piston pin comprising:
- a pipe-shaped main body made of an iron-based sintered alloy,
- wherein the piston pin is configured to be installed to penetrate an upper end of a connecting rod and a piston,
- wherein a mass center of the piston pin is eccentric in a circumferential direction,
- wherein the piston pin includes a first area and a second area divided in the circumferential direction, and
- wherein the first area includes a metal infiltrating material.
2 more elements
A piston pin comprising:
- a pipe-shaped main body made of an iron-based sintered alloy,
- wherein the piston pin is configured to be installed to penetrate an upper end of a connecting rod and a piston,
- wherein a mass center of the piston pin is eccentric in a circumferential direction,
- wherein the piston pin includes a first area and a second area divided in the circumferential direction, and
- wherein a metal paste is applied to an inner diameter surface of the first area.
2 more elements
A piston pin comprising:
- a pipe-shaped main body of an iron-based sintered alloy,
- wherein the piston pin is configured to be installed to penetrate an upper end of a connecting rod and a piston,
- wherein a mass center of the piston is eccentric in a circumferential direction,
- wherein the piston pin includes a first area and a second area divided in the circumferential direction,
- wherein the first area and the second area have different densities,
- wherein a center of an outer diameter of the pipe-shaped main body and a center of an inner diameter of the pipe-shaped main body are eccentric by 0.1 mm or more, and
- wherein the first area includes a metal infiltrating material, or a metal paste applied to an inner diameter surface of the first area.
4 more elements
Dependencies are inferred from the claim text.