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Drive Unit For Vehicle And Straddle Type Electric Vehicle

Abstract: Provided is a drive unit for a vehicle capable of cooling oil that flows through an oil passage to suppress oil film breakage, abrasion, or the like of a sliding portion of a bearing. A drive unit 10 for a vehicle includes a motor housing 20, a motor 30, a bearing 24, a gear 35, a gear housing 40 connected to the motor housing 20 and having a bottom portion in which an oil reservoir 45 in which oil is stored is formed, a reduction mechanism housed in the gear housing 40 and configured to reduce a speed of rotation of the gear 35 and transmit the speed-reduced rotation to an output shaft 52, and an oil passage formed in the motor housing 20 so as to guide the oil stored in the oil reservoir 45 to the bearing 24, in which the motor housing 20 is provided with an outside air passage through which outside air of an outside of the motor housing flows. [Figure 3]

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Patent Information

Application #
Filing Date
18 March 2025
Publication Number
49/2025
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application

Applicants

HITACHI ASTEMO, LTD.
2520 Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan

Inventors

1. TASAKI Yohei
c/o Hitachi Astemo, Ltd., 2520, Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan
2. NOMURA Tomohiro
c/o Hitachi Astemo, Ltd., 2520, Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan
3. NISHIHARA Yuki
c/o Hitachi Astemo, Ltd., 2520, Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan
4. SAWADA Kyosuke
c/o Hitachi Astemo, Ltd., 2520, Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan
5. TAKEUCHI Naoki
c/o Hitachi Astemo, Ltd., 2520, Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan
6. ONISHI Takayuki
c/o Hitachi Astemo, Ltd., 2520, Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan
7. KIMURA Yosuke
c/o Hitachi Astemo, Ltd., 2520, Takaba, Hitachinaka-shi, Ibaraki 312-8503, Japan

Specification

Description:PLEASE SEE THE ATTACHMENTS. , Claims:PLEASE SEE THE ATTACHMENTS.

Documents

Application Documents

# Name Date
1 202544024186-STATEMENT OF UNDERTAKING (FORM 3) [18-03-2025(online)].pdf 2025-03-18
2 202544024186-REQUEST FOR EXAMINATION (FORM-18) [18-03-2025(online)].pdf 2025-03-18
3 202544024186-PRIORITY DOCUMENTS [18-03-2025(online)].pdf 2025-03-18
4 202544024186-FORM 18 [18-03-2025(online)].pdf 2025-03-18
5 202544024186-FORM 1 [18-03-2025(online)].pdf 2025-03-18
6 202544024186-FIGURE OF ABSTRACT [18-03-2025(online)].pdf 2025-03-18
7 202544024186-DRAWINGS [18-03-2025(online)].pdf 2025-03-18
8 202544024186-DECLARATION OF INVENTORSHIP (FORM 5) [18-03-2025(online)].pdf 2025-03-18
9 202544024186-COMPLETE SPECIFICATION [18-03-2025(online)].pdf 2025-03-18
10 202544024186-FORM-26 [19-03-2025(online)].pdf 2025-03-19
11 202544024186-Proof of Right [01-04-2025(online)].pdf 2025-04-01
12 202544024186-FORM 3 [26-08-2025(online)].pdf 2025-08-26