HYDRAULIC SYSTEM Russian patent published in 1994 - IPC

FIELD: hydraulic engineering. SUBSTANCE: hydraulic system has electrically driven pump 24 coupled to consumers 22,23 trough pipe lines 5,6 and a distributing member, which is made of bushing 2 provided with ports 3,4 and tightly connected with the pipe lines, received within case 1. Cylindrical slide 7 of the distributing member is received in the bushing for axial movements and provided with radial openings 8,9 and face stop disks 11,12. Flexible apertures 13,14 are secured to disks 11,12 and coupled to case 1 to form insulated face spaces 15,16 and middle spaces 17 inside the case. A thermoregulating unit of the distributing member includes two rigid tanks 19,21 with heat-conducting walls which are partially filled with a thermosensitive fluid and are in communication with face spaces 15,16 of case 1 through pipe lines 18,20 filled with gas. Rod 27 of the distributing member is secured to stop face disk 12 by its one end and to driving member 29 of additional switch 30 of a circuit for controlling the pump with the electromotor by its other end. The circuit includes also main switch 31 of electromotor 32 of pump 24 which is connected to the additional switch in parallel. Opening 28 provided in the wall of the case is sealed and rod 27 is passed through it. For manual controlling the distributing member is provided with cramp-locator 39 secured to disk 36 of rod 27 and mounted for fixing slide 7 at two end positions. EFFECT: improved design. 2 cl, 2 dwg