| 摘要 |
PURPOSE:To obtain a balancer mechanism having an unlimited vibration frequency, which may be easily additionally mounted to an existing engine or a newly designed engine, by providing a balancer head and operating the balancer head according to engine rotational speeds and load conditions. CONSTITUTION:A balancer head 1 is mounted to an engine 0. The balancer head 1 is designed to receive a hydraulic pressure through a servo valve and operate a hydraulic piston by the hydraulic pressure. An inertial mass is connected with the hydraulic piston. A control device 3 receives a signal corresponding to an engine rotational speed from a rotation reference signal generator 4, and further receives an engine load signal through a control signal line 5. The control device 3 acts to control the servo valve according to the engine condition. As a result, the inertial mass is operated to vibrate the engine 0. |
