| 摘要 |
PURPOSE: An engine mount for a vehicle is provided to damp vibration of an engine just by a hydraulic mount when a dynamic characteristic is varied according to a vibration change of the engine and a vibration-damping function is lost by degradation of a slid mount by doubly supporting the engine with the sold mount and the hydraulic mount. CONSTITUTION: An engine mount for a vehicle comprises a first mount(1) elastically supporting an engine by a shock-absorbing member(11) of an elastic material filled in a case(12) while surrounding a support rod(10) combined to the engine side; a second mount(2) comprising a cylinder(20) fixed to a vehicle body, and a piston(22) and supporting the first mount while reducing vibration by hydraulic pressure filled in upper and lower pressure chambers(20a,20b) formed to the inner upper and lower parts of the cylinder; and a pressure control system(3). The piston is elastically supported by a compression spring(21) and the upper end of the piston is combined to the case of the first mount. The pressure control system comprises a hydraulic actuator(30) connected to the upper and lower pressure chambers through first and second passages(31,32), to supply and collect a fluid to/from the upper and lower pressure chambers; a servo valve(33) adjusting the flowing direction of the fluid in the first and second passages; and a control part(35) controlling the pressure of the upper and lower pressure chambers of the second mount by operating the servo valve by a signal input from the outside.
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