Document Type and Number:
Japanese Patent JPS6410641
Kind Code:
B2
Abstract:
1. A apparatus for adjusting the rotating blades of axial fluid flow machines by means of a servo cylinder and piston unit (22, 3) which is situated coaxially with respect to the axis of rotation in the machine shaft (27), and with a control device which is associated with said unit functionally and which outside of its zero position feeds oil under pressure to the servo piston (3) and, after blade adjustment, moves back into the zero position with the help of a return rod (8) joined to the servo piston (3), characterized in that the control device is an axial piston pump (1) which serves to produce the oil under pressure and, besides being pivotable at its drive joint (22'), is also held with its swivel body (20) to be swivellable about a slide block (9) whose guide (16) is displaceable by the servo piston (3) and with the return rod (8), and that substantially parallel to the machine shaft (27) there is provided a screwthreaded spindle (10) which is connected to a geared motor (12) and which is mounted to be rotatable but axially stationary, and which engages in a screw-threaded block (34) of the pump motor (11).
Inventors:
FURITSUTSU SHENEMAN
Application Number:
JP18774083A
Publication Date:
February 22, 1989
Filing Date:
October 08, 1983
Export Citation:
Assignee:
THYSSEN AG
International Classes:
F04D29/18; B63H3/08; F01D7/00; F03B3/06; F15B9/04