SEALING STRUCTURE WITH TORSIONAL DAMPER AND OIL SEAL

To provide a sealing structure with a torsional damper and an oil seal that can reduce exposure of a seal lip of the oil seal to foreign matter entering from around the torsional damper. A sealing structure (1) with a torsional damper and an oil seal includes a damper pulley (10) serving as a torsio...

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Bibliographic Details
Main Authors MATSUI Hiroki, KAMIYA Yusuke, NAKASHIMA Toru, MIZUTA Hirotaka, OMOTO Shinya
Format Patent
LanguageEnglish
French
German
Published 16.10.2019
Subjects
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MEANS FOR DAMPING VIBRATION
MECHANICAL ENGINEERING
PISTONS
SEALINGS
SHOCK-ABSORBERS
SPRINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:To provide a sealing structure with a torsional damper and an oil seal that can reduce exposure of a seal lip of the oil seal to foreign matter entering from around the torsional damper. A sealing structure (1) with a torsional damper and an oil seal includes a damper pulley (10) serving as a torsional damper and an oil seal (20). The damper pulley (10) has an annular hub pocket (30) that is recessed in the outer side direction and extends in the circumferential direction along a boss part (14) of a hub (11). The oil seal (20) includes a side lip (29) that extends toward the outer side. An outer circumferential surface (31) of the hub pocket (30) increases in a diameter toward the outer side, the side lip (29) of the oil seal (20) does not enter inside the hub pocket (30), and an annular gap (g1) is formed between an outer side end (29a) of the side lip (29) and an inner side end (31a) of the outer circumferential surface (31) of the hub pocket (30).
Bibliography:Application Number: EP20150864815