Title:
POWER TRANSMITTING DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/070744
Kind Code:
A1
Abstract:
A transmission (21) as a power transmitting device for a vehicle comprises an input shaft (22), an output shaft (23), a planetary continuously variable transmission mechanism (31), a direct connection mechanism (27), and an idler gear (29). The direct connection mechanism (27) comprises a direct connection clutch (30). The planetary continuously variable transmission mechanism (31) comprises a planetary gear mechanism (32), a pump-side clutch (33), a hydraulic pump (36), a hydraulic motor (38), and a motor-side clutch (40). The hydraulic pump (36) and the hydraulic motor (38) are connected via a pair of main lines (37A, 37B). Provided between the pair of main lines (37A, 37B) is an electromagnetic on-off valve (41) that is capable of opening and shutting off the communication between the pair of main lines (37A, 37B).
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Inventors:
NAKAGAKI MAKOTO (JP)
KOINUMA TAKUMA (JP)
KOINUMA TAKUMA (JP)
Application Number:
PCT/JP2021/032117
Publication Date:
April 07, 2022
Filing Date:
September 01, 2021
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
F16H47/02; F16H61/02; F16H61/4069
Foreign References:
| JP2005076788A | 2005-03-24 | |||
| JP2017074910A | 2017-04-20 | |||
| JP2010540866A | 2010-12-24 | |||
| JP5190513B2 | 2013-04-24 |
Other References:
See also references of EP 4102105A4
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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