US 2022/0010859 A1Published application

Flexible flywheel

AssigneeAisin Takaoka Co., Ltd.

InventorsTsuyoshi OTA, Akira SATO

Life of this patent

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Abstract

A flexible flywheel includes: a shaft fastening portion fixed to an end portion of an engine crankshaft; an annular inertia ring provided around the shaft fastening portion; a plurality of elastic spoke portions which extend in the radial direction between the shaft fastening portion and the inertia ring and connect the shaft fastening part and the inertia ring to each other, and that absorb vibration acting on the crankshaft by undergoing deflection; and weight portions provided between adjacent ones of the elastic spoke portions. The fastening portion, inertial ring, elastic spoke portions, and weight portions are formed integrally by casting or forging.

Claims7

Dependent claims

A flexible flywheel comprising:

a shaft fastening portion which is fixed to an end portion of a shaft of a rotating machine;
an annular inertia ring provided around the shaft fastening portion;
a plurality of elastic spoke portions that extend in the radial direction between the shaft fastening portion and the inertia ring and connect the shaft fastening portion and the inertia ring to each other, the elastic spoke portions absorbing a vibration acting on the shaft by undergoing deflection;
and
a weight portion provided between adjacent ones of the elastic spoke portions, the weight portion being connected to one of the shaft fastening portion and the inertia ring and being spaced from the other of the shaft fastening portion and the inertia ring, the weight portions being shaken by the vibration acting on the shaft and absorbing the vibration acting on the shaft by the shaking,
wherein the shaft fastening portion, the inertia ring, the elastic spoke portions, and the weight portions are integrally formed by casting or forging.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/429,224Filed 11 Mar 2020
Priority: JP 2019-05692325 Mar 2019
Published: 13 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F16F 15/3153
Characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft: securing inertia members to the shafts
F16F 15/121
Using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon: using springs as elastic…
F16F 2222/08
Special physical effects, e.g. nature of damping effects: inertia
F16F 2230/36
Purpose; Design features: holes, slots or the like

Family

US 11,873,879 B2Related patent
US 2022/0010859 A1This patent

From the US filing history. Foreign family members aren’t listed.

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