US 2024/0200634 A1Published application

Vehicle power transmission apparatus

AssigneesToyota Jidosha Kabushiki Kaisha, Denso Corporation

InventorsShintaro HOTTA, Masaki AMAKAWA

Life of this patent

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Abstract

A vehicle power transmission apparatus including: (i) a flywheel provided with a center hole in which an end portion of a crankshaft of an engine is inserted such that an outer circumferential surface of the end portion of the crankshaft is fitted in a fitting portion of the center hole; (ii) an input shaft to which a power of the engine is transmitted through the flywheel; and (iii) a disk including an outer peripheral portion connected to an outer peripheral portion of the flywheel, and provided with a center hole spline-fitted on an outer circumferential surface of an engine-side end portion of the input shaft. The outer circumferential surface of the engine-side end portion of the input shaft has a diameter larger than a diameter of the fitting portion of the center hole of the flywheel.

Claims5

Dependent claims

A vehicle power transmission apparatus comprising:

a flywheel provided with a center hole in which an end portion of a crankshaft of an engine is to be inserted such that an outer circumferential surface of the end portion of the crankshaft is to be fitted in a fitting portion of the center hole;
an input shaft to which a power of the engine is to be transmitted through the flywheel;
and
a disk including an outer peripheral portion that is connected to an outer peripheral portion of the flywheel, and provided with a center hole that is spline-fitted on an outer circumferential surface of an engine-side end portion of the input shaft,
wherein the outer circumferential surface of the engine-side end portion of the input shaft, which is spline-fitted in the center hole of the disk, has a diameter larger than a diameter of the fitting portion of the center hole of the flywheel which is to be fitted on the outer circumferential surface of the end portion of the crankshaft.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/540,017Filed 14 Dec 2023
Priority: JP 2022-20257119 Dec 2022
Published: 20 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F16F 15/3153
Characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft: securing inertia members to the shafts
B60K 6/26
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the motors or the generators
B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60K 6/40
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the assembly or relative disposition of components

Family

US 12,372,136 B2Related patent
US 2024/0200634 A1This patent

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

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