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Patent Searching and Data


Title:
VALVE LIFT VARIATION DEVICE
Document Type and Number:
Japanese Patent JPH08177423
Kind Code:
A
Abstract:

PURPOSE: To improve reliability of lift switchover motion by preventing leakage of working oil for lift switchover from a tappet sliding hole of a cylinder head.

CONSTITUTION: Seal rings 39B, 39C to prevent leakage of oil supplied from the side of a cylinder head 10 are provided on an inner peripheral surface of a sliding hole 11 or an outer peripheral surface of a tappet 30 in a valve lift variation device furnished with the tappet 30 held free to slide along the sliding hole 11 of the cylinder head 10 and having valve lift switchover means 37, 37A, 38 by hydraulic pressure.


Inventors:
TOFUJI TAMOTSU
Application Number:
JP1994000316480
Publication Date:
July 09, 1996
Filing Date:
December 20, 1994
Export Citation:
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Assignee:
UNISIA JECS CORP
International Classes:
F01M11/00; F01L1/14; F01L13/00; F02F11/00; (IPC1-7): F01L13/00; F01L1/14; F01M11/00; F02F11/00
Attorney, Agent or Firm:
阿部 和夫