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Title:
INTERNAL COMBUSTION ENGINE HAVING ELECTROMAGNETIC DRIVING TYPE VALVE GEAR MECHANISM
Document Type and Number:
Japanese Patent JP2001254612
Kind Code:
A
Abstract:

To provide an internal combustion engine having a solenoid driving valve capable of surely attracting an armature to a valve closing electromagnet without power consumption at the initial driving stage of the solenoid driving valve, that is, capable of totally closing the intake/exhaust valves without power consumption.

This internal combustion engine is provided with electromagnetic driving type valve gear mechanisms 30A, 31A having electromagnetic driving mechanisms 30, 31 for driving intake/exhaust valves 28, 29 of the internal combustion engine 1 to open and close by utilizing electromagnetic force, positioning the intake/exhaust valves in the middle position between the totally closing position and the fully opening position during non-operation. In the case of operating the electromagnetic driving mechanisms 30, 31 put in the non-operating state, a piston 22 is moved toward the top dead center, thereby pushing up the intake/exhaust valves 28, 29 by the piston head 22a to totally close the intake/exhaust valves 28, 29.


Inventors:
OGISO MASATO
KATSUMATA MASAJI
SHIRATANI KAZUHIKO
YOTSUEDA KEIJI
NISHIDA HIDEYUKI
YAMADA TOMOUMI
IWASHITA YOSHIHIRO
NAKANISHI KIYOSHI
Application Number:
JP2000067865A
Publication Date:
September 21, 2001
Filing Date:
March 10, 2000
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F01L1/00; F01L9/04; F02D13/02; H01F7/16; (IPC1-7): F01L9/04; F01L1/00; F02D13/02; H01F7/16
Attorney, Agent or Firm:
Tsutomu Toyama (3 others)