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Planetary gear set for an automatic transmission of a vehicle

一种自动变速器、行星齿轮组的技术，应用在齿轮传动装置、齿轮润滑/冷却、皮带/链条/齿轮等方向，能够解决不能充分地帮助第一轴承11旋转等问题

Active Publication Date: 2007-05-16
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, since the lubricating oil is heated by the first bearing 11 before being supplied to the second bearing 21, the lubricating oil cannot sufficiently assist the rotation of the first bearing 11

Method used

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  • Planetary gear set for an automatic transmission of a vehicle
  • Planetary gear set for an automatic transmission of a vehicle
  • Planetary gear set for an automatic transmission of a vehicle

Examples

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Embodiment Construction

[0025] Hereinafter, a typical embodiment of the present invention will be described with reference to the accompanying drawings.

[0026] FIG. 3 is a schematic cross-sectional view of a planetary gear set of an automatic transmission according to an exemplary embodiment of the present invention, and FIG. 4 is a partially enlarged view of FIG. 3 .

[0027] First, the sun gear 110 is coupled to the center shaft 160 in which a cavity is formed so that the sun gear 110 and the center shaft 160 rotate with respect to the same rotation axis. A pinion 120 is provided to engage the sun gear 110 and a ring gear 140 is provided to engage the pinion 120 .

[0028] The pinion gear 120 is rotatably supported by a planet carrier 130 . The first bearing 111 is arranged between an azimuth of the sun gear 110 and the carrier 130 , and the second bearing 121 is arranged between the outer circumferential surface of the pinion 120 and the carrier 130 .

[0029] Usually, the first bearing 111 is...

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PUM

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Abstract

A planetary gear set for an automatic transmission of a vehicle includes a central shaft having a main lubrication path and a penetration hole connected with the main lubrication path, a sun gear, a pinion gear, a ring gear, a planet carrier, a first bearing disposed between a side of the sun gear and the planet carrier, a second bearing disposed between the planet carrier and the pinion gear, a clutch hub shaft, a sun gear lubrication path that connects the main lubrication path to the first bearing through the penetration hole, a pinion gear lubrication path that connects the main lubrication path to the second bearing through the penetration hole, and a sealing element disposed in a passageway connecting the pinion gear lubrication path and the sun gear lubrication path so as to close the passageway.

Description

[0001] Cross-references to related applications [0002] This application claims priority and benefit from Korean Patent No. 10-2005-0108105 filed with the Korean Intellectual Property Office on November 11, 2005, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a planetary gear set for a vehicle automatic transmission. More particularly, the present invention relates to a planetary gear set for an automatic transmission of a vehicle having a seal so as to close a passage connecting a sun gear lubrication path and a pinion lubrication path. Background technique [0004] Generally, a conventional automatic transmission for a vehicle includes a planetary gear set as shown in FIGS. 1 and 2 . [0005] Hereinafter, a conventional automatic transmission for a vehicle will be briefly described with reference to FIGS. 1 and 2 . [0006] First, the sun gear 10 is coupled to the center shaft 60 in which a ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/70F16H57/04
CPCF16H3/44F16H57/0479F16H57/043F16H57/0482F16H57/029F16H57/02
Inventor 崔英三
Owner HYUNDAI MOTOR CO LTD
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