Title:
OIL-HYDRAULIC CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/167261
Kind Code:
A1
Abstract:
[Problem] To improve the controllability of a lock-up device. [Solution] An oil-hydraulic circuit comprising a torque converter control valve and a lock-up control valve, wherein the lock-up control valve has a valve disc displaceable in an axial direction, an actuator that displaces the valve disc toward a first valve position on one side in the axial direction, a bias member that displaces the valve disc toward a second valve position on the other side in the axial direction, a first port to which oil is supplied using line pressure as source pressure, a second port connecting to a first oil passage connected to the piston oil chamber, a third port connecting to the first oil passage, and a drain port. The valve disc is displaceable between the first valve position for communicating the first port with the second port, and the second valve position for communicating the second port with the drain port. The oil that flows in from the third port biases the valve disc toward the second valve position.
Inventors:
SUGIYAMA KOSHIRO (JP)
KAWASUMI TAKUROU (JP)
KODAMA YOSHIHISA (JP)
YANAGAWA DAISUKE (JP)
SAKAKIBARA KENJI (JP)
KOJIMA KENJI (JP)
MINAMIZAWA SORAMI (JP)
KAWASUMI TAKUROU (JP)
KODAMA YOSHIHISA (JP)
YANAGAWA DAISUKE (JP)
SAKAKIBARA KENJI (JP)
KOJIMA KENJI (JP)
MINAMIZAWA SORAMI (JP)
Application Number:
PCT/JP2023/007692
Publication Date:
September 07, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
JATCO LTD (JP)
NISSAN MOTOR (JP)
NISSAN MOTOR (JP)
International Classes:
F16H61/14; F16H45/02
Foreign References:
| JP2009243640A | 2009-10-22 | |||
| JP2001116137A | 2001-04-27 |
Attorney, Agent or Firm:
TAKEHARA Naohiko et al. (JP)
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