POWER TRANSMISSION APPARATUS OF AUXILIARY MACHINERY FOR AUTOMOTIVE ENGINE

摘要

PURPOSE: A power transmission device of an auxiliary machinery for a car engine is provided to operate all auxiliary machineries by releasing the connection of a compressor pulley with a rotation center shaft when an abnormal rotation of the compressor generates. CONSTITUTION: A power transmission device of an auxiliary machinery comprises a hub(11), a compressor pulley(12), a connection unit(20) and an unlocking unit(30) The hub is fixed to a rotation center shaft(13). The hub is connected with a same rotation center shaft in which the compressor housing is connected. The compressor pulley is separated from the hub and rotated by a diving belt. The compressor pulley is connected to the compressor housing through a bearing. The connection unit is formed in the hub and the compressor pulley respectively, locks or unlocks selectively when an abnormal torque of the compressor generates. The unlocking unit releases the connection unit.