Title:
VALVE-OPENING/CLOSING TIMING CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2019190353
Kind Code:
A
Abstract:
To constitute a valve-opening/closing timing control device which is not erroneously transited to a lock state when performing phase control.SOLUTION: An operation region of a spool has: phase control regions W2, W4 for supplying fluids to an advance port or a retardation port in a state that the fluids are supplied to a lock port; lock regions W1, W5 for supplying fluids to the advance port or the retardation port in a state that the fluids are discharged from the lock port; and sealing regions WP1, WP5 for supplying fluids to the advance port or the retardation port in a state that the lock port is sealed. The sealing regions WP1, WP5 are sandwiched between the phase control regions W2, W4 and the lock regions W1, W5.SELECTED DRAWING: Figure 3
Inventors:
IWATA DAISUKE
NOGUCHI YUJI
IWAYA TAKASHI
TANABE SHIGEHIRO
AMANO HIROYUKI
NOGUCHI YUJI
IWAYA TAKASHI
TANABE SHIGEHIRO
AMANO HIROYUKI
Application Number:
JP2018083146A
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
AISIN SEIKI
International Classes:
F01L1/356
Attorney, Agent or Firm:
Patent business corporation r&c