Title:
OIL HYDRAULICALLY DRIVEN TYPE TAPPET VALVE DEVICE
Document Type and Number:
Japanese Patent JPS61279715
Kind Code:
A
Abstract:
PURPOSE:To increase rigidity in a working system and improved a response characteristic of a piston to a roller, by arranging a pump adjacent to an upper part actuator chamber and setting a feed oil pipe, which connects the both of these pump and chamber, in a short length. CONSTITUTION:A plunger 1 of a pump 3, provided approaching an upper part actuator chamber 5, is lifted by an exhaust cam 2 through a roller 9 and a long sized rod 10. Then working fluid in the pump 3 is compressed, and its pressure is propagated in a feed oil pipe 4 of short length, reaching the upper part actuator chamber 5. And if force acting on a piton 6 exceeds the force of an air spring chamber 7, a device, depressing the piston 6, opens an exhaust valve 8. Here the device, arranging the pump 3 approaching the upper part actuator chamber 5, sets the feed oil pipe 4, connecting the both of these pump 3 and chamber 5, in a short length. Accordingly, rigidity can be increased in a working system constituted mainly of the rod 10 and the working fluid.
Inventors:
BAN SHINICHIRO
KONDO JUNJI
WAKATSUKI SUKEYUKI
MATSUMURA YASUIE
KONDO JUNJI
WAKATSUKI SUKEYUKI
MATSUMURA YASUIE
Application Number:
JP11985685A
Publication Date:
December 10, 1986
Filing Date:
June 04, 1985
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F01L9/02; (IPC1-7): F01L9/02
Attorney, Agent or Firm:
Shigefumi Okamoto (4 others)
Previous Patent: CYLINDER HEAD
Next Patent: LUBRICATING DEVICE FOR CYLINDER IN INTERNAL-COMBUSTION ENGINE
Next Patent: LUBRICATING DEVICE FOR CYLINDER IN INTERNAL-COMBUSTION ENGINE