Shaft damper of transmission
AssigneeHyundai Motor Company
InventorsJae Woong Hwang, Yong Wook Jin, Wan Soo Oh
Life of this patent
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Abstract
A shaft damper of a transmission is provided to improve an NVH characteristic such as rattle noise of a transmission by effectively reducing target resonance as a problem in whole rpm ranges by adding a structure to minimize one resonance and additionally reduce the resonance with respect the other resonance between two resonances while converting the target resonance as the problem into two divided resonances by mounting a structure which applies inertia to an input shaft or an output shaft, a counter shaft, or a PTO shaft of the transmission.
Claims10
A shaft damper, comprising:
- a shaft;
- a drive plate fixed to the shaft;
- a first inertia plate relatively rotatable to the shaft;
- a first elastic member providing elastic force while being elastically transformed by relative rotation between the drive plate and the first inertia plate;
- a second inertia plate relatively rotatable to the first inertia plate and the shaft with the shaft as a rotary shaft;
- and
- a second elastic member continuously providing elastic force while being elastically transformed by relative rotation between the first inertia plate and the second inertia plate.
A shaft damper for a transmission, comprising:
- a shaft;
- a first inertia body mounted on the shaft such that the first inertia body is relatively rotatable within a specific range with respect to the shaft wherein rotation of the first inertia body is elastically restricted;
- and
- a second inertia body elastically relatively rotatable with a specific range with respect to the first inertia body and the shaft with the shaft as a rotary shaft, wherein rotation of the second inertia body is elastically restricted.
Dependencies are inferred from the claim text.