Counter vibration generating power unit mounting device
AssigneeMazda Motor Corporation
InventorsNaoki Ikeda, Shin Takehara
Life of this patent
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Abstract
An active type of mounting device for mounting a power unit to a vehicle body includes a vibratory member which generates vibrations so as to damp external vibrations applied to the mounting device from the power unit. The resonance frequency of the vibratory member is regulated by varying of the supporting stiffness or flexibility of the vibratory member or by varying of a variable mass attached to the vibratory member to obtain a specific frequency within a frequency band of external vibrations according to engine speed and/or vehicle speed.
Claims18
A power unit mounting device for mounting a power unit to a vehicle body and canceling vibrations applied thereto from the power unit, comprising:
- vibratory means, flexibly supported by a portion of said power unit mounting device, for generating vibrations in the power unit mounting device;
- exciting means for causing said vibratory means to generate said vibrations in the power unit mounting device so as to reduce vibrations transmitted to said power unit mounting device from said power unit;
- and
- frequency regulating means for adjusting a natural resonance frequency of said vibratory means to a predetermined frequency within a frequency band of vibrations which may be transmitted to the power unit mounting device.
A power unit mounting device for mounting a power unit to a vehicle body and canceling vibrations applied thereto from the power unit comprising:
- vibratory means, flexibly supported by a portion of said power unit mounting device, for generating vibrations in the power unit mounting device;
- and
- frequency regulating means for adjusting a natural resonance frequency of said vibratory means to a predetermined frequency within a frequency band of vibrations transmitted to the mounting device so as to reduce vibrations transmitted to said power unit mounting device from said power unit.
Dependencies are inferred from the claim text.