Vehicle power transmission device

US8955658B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8955658-B2
Application numberUS-201013989211-A
CountryUS
Kind codeB2
Filing dateNov 24, 2010
Priority dateNov 24, 2010
Publication dateFeb 17, 2015
Grant dateFeb 17, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

It is provided a vehicle power transmission device having a torque converter and a power transmission mechanism in a power transmission path between an engine and drive wheels, the torque converter including an input-side rotating member disposed with a plurality of pump blades, an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blades, and a stator disposed with a stator blade disposed between the pump blades and the turbine blades, the power transmission mechanism transmitting power input to an input shaft from the torque converter to a subsequent stage, within a circulation flow passage allowing circulation of fluid in the torque converter, a circulation outward passage allowing the fluid to flow toward the inside of the torque converter at the time of the circulation being made up of a gap between the input shaft of the power transmission mechanism and a tubular stator shaft coupled via a one way clutch to the stator, and the stator shaft being concentric with the input shaft and has a diameter larger than the input shaft, the torque converter including a lockup clutch selectively coupling the input-side rotating member to the output-side rotating member, the lockup clutch having a release-side chamber consisting of a portion of the circulation outward passage and having an inner pressure increased by supply of the fluid when the lockup clutch is released, the lockup clutch being disposed on a side opposite to the stator shaft relative to the output-side rotating member, the circulation outward passage including a through-hole penetrating the output-side rotating member in an axial center direction of the torque converter to be in communication with a gap between the input shaft of the power transmission mechanism and the stator shaft, and a gap in the axial center direction between the stator and the output-side rotating member being oil-tightly sealed on an outer circumferential side of the through-hole.

First claim

Opening claim text (preview).

The invention claimed is: 1. A vehicle power transmission device comprising: a torque converter and a power transmission mechanism in a power transmission path between an engine and drive wheels, the torque converter including an input-side rotating member disposed with a plurality of pump blades, an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blades, and a stator disposed with a stator blade disposed between the p…

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What does patent US8955658B2 cover?
It is provided a vehicle power transmission device having a torque converter and a power transmission mechanism in a power transmission path between an engine and drive wheels, the torque converter including an input-side rotating member disposed with a plurality of pump blades, an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blade…
Who is the assignee on this patent?
Ideshio Yukihiko, Miyazaki Terufumi, Kamiya Toshihiko, and 4 more
What technology area does this patent fall under?
Primary CPC classification F16D33/18. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).