Title:
VALVE CONTROL DEVICE, AND VALVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/113511
Kind Code:
A1
Abstract:
Provided is a valve control device that controls driving to open/close a first intake valve and a second intake valve and that is provided to an intake port which is in communication with the inside of a cylinder of an internal combustion engine. The valve control device comprises a control device that controls a lift amount of the first intake valve and a lift amount of the second intake valve so that the relationship between the lift amount of the first intake valve and the lift amount of the second intake valve is reversed at least once during one cycle of the internal combustion engine.
Inventors:
INOUE MASAHIKO (JP)
SATO SHINYA (JP)
SATO SHINYA (JP)
Application Number:
PCT/JP2021/035649
Publication Date:
June 02, 2022
Filing Date:
September 28, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02B31/06; F02D13/02
Domestic Patent References:
| WO2013140596A1 | 2013-09-26 |
Foreign References:
| JPS5694820U | 1981-07-28 | |||
| JP2004144052A | 2004-05-20 | |||
| JP2008064008A | 2008-03-21 | |||
| JP2008150973A | 2008-07-03 | |||
| JP2010019179A | 2010-01-28 | |||
| JPH11229913A | 1999-08-24 | |||
| JPS6369730U | 1988-05-11 | |||
| JP2000274252A | 2000-10-03 | |||
| JP2005127273A | 2005-05-19 | |||
| JP2009156166A | 2009-07-16 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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