PISTON RING

PROBLEM TO BE SOLVED: To provide a piston ring of an internal combustion engine, capable of ensuring both gas sealability and oil controllability. SOLUTION: This piston ring is composed of an L-shaped ring body, an expander for applying the tensile force to the ring body, and a seal ring, with a rat...

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Bibliographic Details
Main Author TATEISHI YUKIO
Format Patent
LanguageEnglish
Published 18.01.2002
Edition7
Subjects
ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
BLASTING
COMBUSTION ENGINES
CYLINDERS
CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a piston ring of an internal combustion engine, capable of ensuring both gas sealability and oil controllability. SOLUTION: This piston ring is composed of an L-shaped ring body, an expander for applying the tensile force to the ring body, and a seal ring, with a ratio h2/h1 of a height h2 from the lower face of the ring body to the angular part inside of the ring body and a ring width h1 being 1/3 or larger and 1/2 or smaller, the seal ring is mounted tightly on a part between the angular part inside of the ring body and an inclined face of a ring groove opposite to the angular part, and the thickness of the ring at a lower part of the ring body is two times or more of the clearance between an outer peripheral face of a land, formed on the lower part of the ring groove and a cylinder wall face, and 1.5 times or smaller of the ring width.
Bibliography:Application Number: JP20000198489