A hydraulic transmission circuit comprising: - two main conduits (26, 28), respectively for supplying fluid and for discharging fluid; - three or four hydraulic elementary motors (12, 14, 16, 18) associated for a same drive; - each of said elementary motors having a first secondary enclosure (12A, 14A, 16A, 18A) for supplying fluid and a second secondary enclosure (12B, 14B, 16B, 18B) for discharging fluid; said motors delivering output torques in the same direction when they are fed via their first respective secondary enclosures; - a first, a second, a third and a fourth distribution valve (32, 34, 36, 38; 3x); each of said distribution valves having an outlet channel and two inlet channels (B, C), and being capable of selectively connecting the outlet channel with selectively either one of said inlet channels; said two inlet channels of said distribution valves being connected to said two main conduits respectively; the outlet channels of said first and second valves being connected to at least one of said first secondary enclosures (12A, 14A, 16A, 18A) of the elementary motors; the circuit being characterized in that - the outlet channels of said third and fourth valves are connected to at least one of said secondary enclosures (12B, 14B, 16B, 18B) of the elementary motors; - each of the elementary motors is exclusively connected to a pair of valves, consisting of the valve from among the first and second distribution valve to which the first secondary enclosure of the relevant motor is connected, and the valve from among the third or fourth distribution valve to which the second secondary enclosure of the relevant motor is connected; - the pairs of valves associated with the different elementary motors are all distinct two by two. - two main conduits (26, 28), respectively for supplying fluid and for discharging fluid; - three or four hydraulic elementary motors (12, 14, 16, 18) associated for a same drive; - each of said elementary motors having a first secondary enclosure (12A, 14A, 16A, 18A) for supplying fluid and a second secondary enclosure (12B, 14B, 16B, 18B) for discharging fluid; said motors delivering output torques in the same direction when they are fed via their first respective secondary enclosures; - a first, a second, a third and a fourth distribution valve (32, 34, 36, 38; 3x); each of said distribution valves having an outlet channel and two inlet channels (B, C), and being capable of selectively connecting the outlet channel with selectively either one of said inlet channels; said two inlet channels of said distribution valves being connected to said two main conduits respectively; the outlet channels of said first and second valves being connected to at least one of said first secondary enclosures (12A, 14A, 16A, 18A) of the elementary motors; the circuit being characterized in that - the outlet channels of said third and fourth valves are connected to at least one of said secondary enclosures (12B, 14B, 16B, 18B) of the elementary motors; - each of the elementary motors is exclusively connected to a pair of valves, consisting of the valve from among the first and second distribution valve to which the first secondary enclosure of the relevant motor is connected, and the valve from among the third or fourth distribution valve to which the second secondary enclosure of the relevant motor is connected; - the pairs of valves associated with the different elementary motors are all distinct two by two.