ENGAGING SYSTEM OF FRICTION CLUTCHES WITH HYDRAULIC CONTROL OF MARINE GEAR REDUCER Russian patent published in 2021 - IPC F16D48/00 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering, in particular to systems for engaging friction clutches. The system for engaging friction clutches with hydraulic control of the marine gear reducer contains a control pump, a control oil line, a control device, three-way control valves and oil lines. The control device is made in the form of a spool device. The first and second outlet ports, made in the spool device, are connected by oil lines to the including cavities of the first and second friction clutches. The first outlet of the first valve is in communication with the extreme end cavity of the first spool. The first outlet of the second valve is in communication with the cavity between the first and second spools. The first outlet of the third valve is in communication with the extreme end cavity of the second spool, the second outlet pipes of all three valves, three-way distribution valves, are connected by oil lines to the third outlet port of the control device. Wherein, in the spool device, the possibility of simultaneous supply of control oil to the first and second output ports of the control device is excluded by means of counter-rods made at the ends of adjacent pistons of the first and second spools.

EFFECT: increased reliability.

1 cl, 3 dwg