Sliding assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9915220
SERIAL NO

14907274

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A sliding assembly for utilization in an internal combustion engine may include at least one piston ring and a cylinder head provided with a through cavity defining an internal surface. The internal surface may define a TDC portion in a proximity of a top dead center, a central portion, and a BDC portion in a proximity of bottom dead center. The TDC portion, central portion, and BDC portion may present surface finishes having a first roughness, a second roughness, and a third roughness, respectively, each defined by a structure of recesses and projections, at least one of which may be substantially uniform. The second roughness may be less than the first roughness value. The piston ring may present at least part of a contact surface upon which a ceramic coating may be applied by a physical vapor deposition.

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Patent Owner(s)

Patent OwnerAddress
MAHLE INTERNATIONAL GMBHPRAGSTRASSE 26-46 STUTTGART 70376
MAHLE METAL LEVE S/ARODOVIA ANHANGUERA SENTIDO INTERIOR CAPITAL KM 49 7 JUNDIAI 13210-877

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meirelles, Tomanik Antonio E Sao Paulo, BR 4 1

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