Title:
VALVE TIMING CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/111397
Kind Code:
A1
Abstract:
A lock introduction region (Rli) in which oil is drained from a lock working chamber (164) and oil is introduced into a lead chamber (22); a lock limiting region (Rls) in which oil is drained from the lock working chamber (164) and the amount of oil introduced into the lead chamber (22) is limited to less than that of the lock introduction region (Rli), the lock limiting region (Rls) being set to one side of the lock introduction region (Rli); and a lead region (Ra) in which oil is introduced into the lock working chamber (164) from which drainage has stopped and the amount of oil introduced into the lead chamber (22) is controlled, the lead region (Ra) being set to the side of the lock introduction region (Rli) that is opposite the lock limiting region (Rls), are set as movement regions of a spool (70) in a control valve (60). When an internal combustion engine is started up, a control circuit (90) variably sets a control command value (V) so that the movement position of the spool (70) within the lock introduction region (Rli) changes over time from the lead region (Ra) side toward the lock limiting region (Rls) side.
Inventors:
AOYAMA KOUICHI (JP)
Application Number:
PCT/JP2015/000203
Publication Date:
July 30, 2015
Filing Date:
January 19, 2015
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02D13/02; F01L1/356
Foreign References:
| JP2002250208A | 2002-09-06 | |||
| JP2011132815A | 2011-07-07 | |||
| JP2012149598A | 2012-08-09 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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