Document Type and Number:
Japanese Patent JPS5172876
Kind Code:
A
Abstract:
This invention relates to a hydropneumatic valve actuator comprising an outer cylindrical casing and an inner cylindrical casing both having closure means at each end. The inner cylindrical casing is positioned in said outer casing and is transversely spaced therefrom to define an elongated annular gas chamber. A piston slidably mounted in said inner casing has a piston rod extending axially from one end thereof through an axial bore in one of said closure means. The gas chamber as well as the portion of the inner casing between the piston and the other closure means, are adapted to be charged with gas under pressure and the portion of the inner casing between the piston and the closure means through which the piston rod extends is adapted to be charged with liquid.
Inventors:
ARUFUONSU EI JAKOBERISU
Application Number:
JP13863475A
Publication Date:
June 24, 1976
Filing Date:
November 18, 1975
Export Citation:
Assignee:
GREER HYDRAULICS INC
International Classes:
F15B15/14; F15B15/08; F16K31/122; (IPC1-7): F15B15/08