Diesel engine etc. piston with top peripheral groove

On the piston (2) outer periphery is located a first top groove (4) for a top piston ring (6), as well as further two lower grooves (5) for lower piston rings (7). The piston rings (6, 7) are arranged movable between two positions in the grooves (4, 5). There is at least one coupling line (10, 14) l...

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Bibliographic Details
Main Authors KNOPF, MARTIN., 88046 FRIEDRICHSHAFEN, DE, BAECHLE, BERNHARD., 88045 FRIEDRICHSHAFEN, DE
Format Patent
LanguageEnglish
German
Published 24.10.1996
Edition6
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:On the piston (2) outer periphery is located a first top groove (4) for a top piston ring (6), as well as further two lower grooves (5) for lower piston rings (7). The piston rings (6, 7) are arranged movable between two positions in the grooves (4, 5). There is at least one coupling line (10, 14) leading from the top groove bottom (8) through the piston skirt to a chamber between the piston outer periphery, the two piston rings, and an inner periphery of a cylinder. Pref. the geometry of the coupling lines is used to adjust the pressure conditions between the top and bottom side of the piston rings.
Bibliography:Application Number: DE1995114918