Title:
VEHICLE POWER TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JP2016031130
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress pressure loss generated when pressure oil discharged from a hydraulic pump flows in a lock-up oil passage.SOLUTION: A lock-up device 63 is constituted by a lock-up clutch 64 connecting a rotating body 44 of a torque converter 41 to a transmission shaft 55 by pressure oil supplied from a hydraulic pump 69, a lock-up control valve 70 controlling the pressure oil to be supplied to or discharged from the lock-up clutch 64; and a lock-up oil passage 75 introducing the pressure oil from the lock-up control valve 70 to the lock-up clutch 64. The lock-up control valve 70 is disposed on an outer side surface 18B of an intermediate casing 18 at a position at which the lock-up control valve 70 overlaps the transmission shaft 55 in a radial direction of the transmission shaft 55. Furthermore, a casing-side oil passage 76 constituting the lock-up oil passage 75 is formed as a linear oil passage extending linearly in the radial direction of the transmission shaft 55 between the lock-up control valve 70 and a transmission-side oil passage 77.SELECTED DRAWING: Figure 7
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Inventors:
KANDA SHUJI
SHIRANE JUNICHI
FUJITA HIROKI
SHIRANE JUNICHI
FUJITA HIROKI
Application Number:
JP2014154856A
Publication Date:
March 07, 2016
Filing Date:
July 30, 2014
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY
KCM KK
KCM KK
International Classes:
F16H45/02
Domestic Patent References:
| JPH05162548A | 1993-06-29 | |||
| JPH0429662A | 1992-01-31 |
Foreign References:
| US4099603A | 1978-07-11 |
Attorney, Agent or Firm:
Kazuhiko Hirose