Title:
INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2015/052930
Kind Code:
A1
Abstract:
An internal combustion engine includes: a plurality of cams that are used for driving a valve; a cam-switching type variable operated-valve structure that has a locker arm portion and a plurality of hydraulic linking structures, the locker arm portion having a plurality of oscillation portions that individually oscillate according to cam profiles of the cams and mediate power conducted from a camshaft having the cams to the valve, the plurality of linking structures performing linking and canceling the linking between two of the plurality of oscillation portions with a lock member, the variable operated-valve structure selecting a usage cam that is used for driving the valve from the cams; and a determination unit that determines at least one of a condition of the lock member and a switching phase of the usage cam according to the condition of the lock member based on changing of a hydraulic pressure according to the switching of the usage cam.
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| JP2008240634 | VALVE GEAR OF ENGINE |
| WO/1987/005356 | POPPET VALVE ASSEMBLIES |
| JP2001012261 | EXHAUST VALVE DRIVING CONTROLLER FOR INTERNAL COMBUSTION ENGINE |
Inventors:
YAMADA TOMOMI (JP)
Application Number:
PCT/JP2014/005126
Publication Date:
April 16, 2015
Filing Date:
October 08, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
F01L1/26; F01L13/00
Foreign References:
| EP0297791A1 | 1989-01-04 | |||
| EP0364081A1 | 1990-04-18 | |||
| EP0265281A1 | 1988-04-27 | |||
| EP0588336A1 | 1994-03-23 | |||
| JPH0874537A | 1996-03-19 |
Attorney, Agent or Firm:
KATAYAMA, Shuhei (6-1 Kyobashi 1-chome, Chuo-k, Tokyo 31, JP)
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