发明名称 |
Planetary gear train of automatic transmission for vehicles |
摘要 |
A planetary gear train including: a first planetary gear set on a first shaft including a first sun gear operated as an output or fixed element, a first planet carrier operable as an output element, and a first ring gear operated as an input element; a second planetary gear set on a second shaft including a second sun gear connected to the first planet carrier, a second planet carrier, and a second ring gear engaging the first planet carrier and the first ring gear; a third planetary gear set on the second shaft including a third sun gear connected to the second ring gear, a third planet carrier engaging the second planet carrier and connected to an output gear, and a third ring gear engaging the first sun gear; three transfer gears; and frictional elements interconnecting the first, second, and third planetary gear sets and/or connecting a transmission housing. |
申请公布号 |
US8894531(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US201314065251 |
申请日期 |
2013.10.28 |
申请人 |
Hyundai Motor Company |
发明人 |
Noh Myonghoon;Shim Hyu Tae;Seo Kangsoo;Kook Jae Chang;Lee Chang Wook;Park Jongsool |
分类号 |
F16H37/02;F16H3/44;F16H3/62 |
主分类号 |
F16H37/02 |
代理机构 |
Morgan, Lewis & Bockius LLP |
代理人 |
Morgan, Lewis & Bockius LLP |
主权项 |
1. A planetary gear train of an automatic transmission for a vehicle, comprising:
a first shaft receiving torque of an engine; a second shaft parallel with the first shaft; a first planetary gear set on the first shaft including a first sun gear operated as an output element or a fixed element, a first planet carrier selectively operated as an output element, and a first ring gear directly connected to the first shaft and always operated as an input element as rotation elements thereof; a second planetary gear set on the second shaft including a second sun gear connected to the first planet carrier through an externally-meshed gear, a second planet carrier, and a second ring gear selectively connected to the first planet carrier and the first ring gear through externally-meshed gears as rotation elements thereof; a third planetary gear set on the second shaft including a third sun gear connected to the second ring gear, a third planet carrier selectively connected to the second planet carrier and directly connected to an output gear so as to be operated as an output element, and a third ring gear selectively connected to the first sun gear through an externally-meshed gear as rotation elements thereof; three transfer gears forming the externally-meshed gears; and frictional elements selectively interconnecting the rotation elements of the first, second, and third planetary gear sets or selectively connecting the rotation element to a transmission housing. |
地址 |
Seoul KR |