Vibration suppression device of power train
First Claim
1. A vibration suppression device of a power train, comprising:
- a power train including an engine which is resiliently mounted on a vehicle body;
a specified structure body comprising said power train partially;
a dynamic damper mounted on said specified structure body, which is comprised of a mass member and a resilient member, the mass member being resiliently mounted on the specified structure body via the resilient member and a resonance frequency of the dynamic damper being set substantially at a peak frequency of said power train so that the dynamic damper can suppress a vibration of said power train;
wherein said resilient member of the dynamic damper has a passage which is formed therein so as to circulate a lubricating oil for lubricating an inside of said specified structure body within said resilient member.
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Accused Products
Abstract
A heat exchanger, which performs heat exchanging between a lubricating oil circulating within a transfer device disposed behind an engine and an engine coolant, also functions as a mass member of a dynamic damper. The heat exchanger is disposed at an upper face of a transfer case via a resilient member. Herein, the resilient member is comprised of a first metal plate, a second metal plate, and a rubber member interposed between the first and second metal plates, and there are provided lubricating passages flowing within the resilient member. Accordingly, there can be provided the vibration suppression device of the power train that can suppress vibration properly regardless of the temperature changing and advantage the weight reduction without requiring any new disposition space.
14 Citations
13 Claims
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1. A vibration suppression device of a power train, comprising:
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a power train including an engine which is resiliently mounted on a vehicle body; a specified structure body comprising said power train partially; a dynamic damper mounted on said specified structure body, which is comprised of a mass member and a resilient member, the mass member being resiliently mounted on the specified structure body via the resilient member and a resonance frequency of the dynamic damper being set substantially at a peak frequency of said power train so that the dynamic damper can suppress a vibration of said power train; wherein said resilient member of the dynamic damper has a passage which is formed therein so as to circulate a lubricating oil for lubricating an inside of said specified structure body within said resilient member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vibration suppression device of a power train, comprising:
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a power train including an engine which is resiliently mounted on a vehicle body; a transfer device including an input shaft inputting an engine power from the engine of said power train, an output shaft extending in a longitudinal direction of a vehicle so as to have substantially a right angle with respect to said input shaft, a bevel gear provided between the input and output shafts, and a case storing the both shafts and the bevel gear and including a journal to support the output shaft; a dynamic damper mounted on an upper face of said transfer device so as to suppress vibration of said power train, which comprises a rubber member functioning as a resilient member thereof and a heat exchanger functioning as a mass member thereof which is resiliently supported via the rubber member on said transfer device; wherein said heat exchanger of the dynamic damper performs heat exchanging between a lubricating oil for lubricating an inside of said transfer device and a coolant for cooling the lubricating oil, and said rubber member of the dynamic damper has oil passages which are formed separately therein so as to supply the lubricating oil from said transfer device to said heat exchanger and return the lubricating oil from said heat exchanger to said transfer device, respectively.
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Specification