Title:
RAILROAD VEHICLE DRIVE UNIT
Document Type and Number:
WIPO Patent Application WO/2010/073867
Kind Code:
A1
Abstract:
A railroad vehicle drive unit (12) is provided with a reduction gear housing (13), an input-side rotating member (14), a reduction gear mechanism (15), fixation members (24, 25) which are arranged within the reduction gear housing (13) and are connected and fixed to a vehicle body, and a lubricating oil circulating mechanism which circulates in the drive unit a lubricating oil. The lubricating oil circulating mechanism is provided with an axis oil path (14a) which extends within the input-side rotating member (14) in the axis direction, lubricating oil supply openings (14b-14e) which extend from the axis oil path (14a) to the outer-diameter surface of the input-side rotating member (14), a lubricating oil discharge opening (25c) which is provided in the fixation member (25), and a circulation oil path (34) which connects the lubricating oil discharge opening (25c) and the axis oil path (14a) and recirculates the lubricating oil, which has been discharged from the lubricating oil discharge opening (25c), to the axis oil path (14a).
Inventors:
MIKI, Daisuke (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
三木 大輔 (〒11 三重県桑名市大字東方字尾弓田３０６６番地 ＮＴＮ株式会社内 Mie, 〒5110811, JP)
KATAOKA, Yukihiro (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
片岡 幸浩 (〒11 三重県桑名市大字東方字尾弓田３０６６番地 ＮＴＮ株式会社内 Mie, 〒5110811, JP)
三木 大輔 (〒11 三重県桑名市大字東方字尾弓田３０６６番地 ＮＴＮ株式会社内 Mie, 〒5110811, JP)
KATAOKA, Yukihiro (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
片岡 幸浩 (〒11 三重県桑名市大字東方字尾弓田３０６６番地 ＮＴＮ株式会社内 Mie, 〒5110811, JP)
Application Number:
JP2009/069911
Publication Date:
July 01, 2010
Filing Date:
November 26, 2009
Export Citation:
Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
MIKI, Daisuke (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
三木 大輔 (〒11 三重県桑名市大字東方字尾弓田３０６６番地 ＮＴＮ株式会社内 Mie, 〒5110811, JP)
KATAOKA, Yukihiro (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
MIKI, Daisuke (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
三木 大輔 (〒11 三重県桑名市大字東方字尾弓田３０６６番地 ＮＴＮ株式会社内 Mie, 〒5110811, JP)
KATAOKA, Yukihiro (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
International Classes:
B61C9/46; F16H1/32; F16H57/02; F16H57/04
Attorney, Agent or Firm:
ITOH, Hidehiko et al. (IMY INTERNATIONAL PATENT OFFICE, Oriental Sakaisuji Bldg. 21-19, Shimanouchi 1-chome, Chuo-ku, Osaka-sh, Osaka 82, 〒5420082, JP)
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