Title:
EXHAUST VALVE DEVICE
Document Type and Number:
Japanese Patent JPS5815706
Kind Code:
A
Abstract:
PURPOSE:To prevent working gas from leaking during the closure of the exhaust valve of an exhaust valve device and facilitate checking and maintenance, by using the pressure of the working gas and the force of a spring to keep the exhaust valve closed and by integrating all the parts of the device except its exchaust port, at the side of a piston. CONSTITUTION:When an intake valve 28 is open, high-pressure working gas is introduced into an expanding chamber 17 through a gap 19 and an intake/ exhaust hole 25. In the process of expansion, the closure of an exhasut valve 2b is maintained by the pressure of the working gas and the force of a backup spring 18 until just before the end of the process. When a piston 15 has started going up toward the top dead center, the exhaust valve 2b is pushed on the inside surface of a cylinder 14 by the force of the backup spring 18 so that the exhaust valve is kept open. According to this constitution, the prevention of leakage of the gas and checking and maintenance are facilitated.
Inventors:
TOKUDA MITSUO
BETSUPU TADASHI
TERASAKI MASAO
IMAMURA MINORU
BETSUPU TADASHI
TERASAKI MASAO
IMAMURA MINORU
Application Number:
JP11368781A
Publication Date:
January 29, 1983
Filing Date:
July 22, 1981
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F01L5/00; F16K24/00; F25B9/06; (IPC1-7): F16K24/00
Domestic Patent References:
| JPS55123307A | 1980-09-22 |
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)