COGGED BELT DRIVE OF INTERNAL COMBUSTION ENGINE MECHANISMS Russian patent published in 1999 - IPC

Abstract RU 2131524 C1

FIELD: mechanical engineering; internal combustion engines; timing gear and auxiliary mechanism drives. SUBSTANCE: cogged belt drive of internal combustion engine, timing gear drive in particular, has driving and driven pulleys over which cogged belt is passed and noise damping members. The latter are made in form of Helmholtz resonator formed by closed ring space communicating with atmosphere through holes and through clearance open at both sides and formed by top of belt tooth and space between pulley teeth. Resonator is turned to natural frequency of low form air vibrations in clearance. EFFECT: increased efficiency of noise damping, reduced material usage in making of pulley. 5 dwg

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RU 2 131 524 C1

Authors

Fesina M.I.

Sokolov A.V.

Dates

1999-06-10—Published

1997-06-06—Filed