TORQUE CONVERTER Russian patent published in 2001 - IPC

FIELD: hydraulic motors using energy of water current. SUBSTANCE: converter has two pairs of piston chambers with piston groups arranged in pairs in upper and lower and lower positions for performing reciprocating motion; piston groups are mechanically linked together. Piston chambers are provided with inlet and outlet passages running through spool valve gear and communicated with reservoirs filled with working medium and with return pipe line. Each of upper piston chambers is provided with additional inlet passage with reservoirs located above chambers for smooth introduction of working medium; lower piston chambers are provided with stops fitted in their upper portion for forming clearance between piston and thrust rod included in piston groups. EFFECT: increased power. 3 dwg