Abstract: A fan motor is adapted to be mounted in a combustion-powered tool. The combustion-powered tool has a housing. The fan motor includes a fan unit, a motor for driving the fan unit, a vibration-absorbing unit, and a clamping unit. The vibration-absorbing unit includes a rigid support that is adapted to be mounted fixedly in the housing of the combustion-powered tool, and an elastic member sleeved over the motor and molded on the rigid support such that the rigid support is disposed around the elastic member. The elastic member is disposed between the rigid support and the motor for absorbing vibrations generated by the motor. The clamping unit includes at least one clamping member sleeved over the elastic member for clamping and retaining the elastic member on the motor.

Abstract: The present invention provides a compound of the general formula Ar1—R1—Ar2 ??(I) wherein Ar1 and Ar2 independently represent triphenylenyl or pyrenyl, and R1 represent a bond, aryl, or heteroaryl. The present invention also provides a process for the preparation of the compound formula (?), and an organic electroluminescence device utilizing luminescent material comprising the compound of formula (?) as an emitting layer.