Abstract: The present invention relates to a kinetic turbopump assembly for a closed loop, in particular of Rankine cycle type, associated with an internal-combustion engine (12) with a drive shaft (26), notably for a motor vehicle, wherein one (10) of the faces of said engine carries accessories (14, 18, 22) of this engine, and at least one winding roller (30, 30?, 30?) for a rotary motion transmission belt (32) connecting at least said accessories to drive shaft (26). According to the invention, the assembly comprises a rotary motion transmission path (T) between shaft (38) of the turbopump and said winding roller.

Abstract: The present invention relates to a cooling system (1) of an internal-combustion engine. Cooling system (1) comprises a closed cooling loop and it includes a closed loop in a Rankine cycle allowing part of the coolant heat to be recovered. According to the invention, the cooling loop comprises two thermostats (6; 20) and evaporator (19) of the Rankine loop is arranged between the two thermostats (6; 20).

Abstract: The present invention is a device and method for controlling a closed loop (10) working on a Rankine cycle comprising a compression and circulation pump (12) for the liquid fluid, a heat exchanger (20) swept by a hot source (C) for evaporation of the fluid, expansion device (32) for the fluid in vapor form, a cooling exchange (44) swept by a cold source (F) for condensing the working fluid, a working fluid receiving tank (50) and working fluid circulation lines (60, 62, 64, 66, 68). The tank (50) is connected to a pressure regulating system (52, 54).

Abstract: The present invention relates to a kinetic turbopump assembly for a closed loop, in particular of Rankine cycle type, associated with an internal-combustion engine (12) with a drive shaft (26), notably for a motor vehicle, wherein one (10) of the faces of said engine carries accessories (14, 18, 22) of this engine, and at least one winding roller (30, 30?, 30?) for a rotary motion transmission belt (32) connecting at least said accessories to drive shaft (26). According to the invention, the assembly comprises a rotary motion transmission path (T) between shaft (38) of the turbopump and said winding roller.

Abstract: The present invention relates to a cooling system (1) of an internal-combustion engine. Cooling system (1) comprises a closed cooling loop and it includes a closed loop in a Rankine cycle allowing part of the coolant heat to be recovered. According to the invention, the cooling loop comprises two thermostats (6; 20) and evaporator (19) of the Rankine loop is arranged between the two thermostats (6; 20).

Abstract: In a device for controlling a working fluid with low freezing point circulating in a closed loop working on a Rankine cycle, the loop includes a compression/circulation pump for the fluid in liquid form, a heat exchanger swept by a hot source for evaporation of the fluid, expansion machine for the fluid in vapour form, a cooling exchanger swept by a cold source for condensation of the working fluid, a working fluid tank and working fluid circulation lines. The working fluid tank is connected to a depression generator.

Abstract: A method for operating an engine automatic stop-start system used in a motor vehicle fitted with an internal combustion engine. The system allows: automatic stoppings of the engine when a set of conditions outside and inside the vehicle are satisfied; automatic startings of the engine following an automatic stopping when at least one engine demand condition is met. The method includes an internal value which is a count of a number of operations of the system, wherein the internal value is subjected to a high threshold and to a low threshold, and the method can modify at least one of the conditions outside or inside the vehicle if the internal value reaches the low threshold or reaches the high threshold.

Abstract: The present invention is a device and method for controlling a closed loop (10) working on a Rankine cycle comprising a compression/circulation pump (12) for the fluid in liquid form, a heat exchanger (20) swept by a hot source (C) for evaporation of the fluid, expansion device (32) for the fluid in vapor form, a cooling exchange (44) swept by a cold source (F) for condensation of the working fluid, a working fluid tank (50) and working fluid circulation lines (60, 62, 64, 66, 68). The tank (50) is connected to a pressure regulating device (52, 54).

Abstract: The present invention relates to a device for controlling a working fluid with low freezing point circulating in a closed loop (10) working on a Rankine cycle, said loop comprising a compression/circulation pump (12) for the fluid in liquid form, a heat exchanger (18) swept by a hot source (24) for evaporation of said fluid, expansion means (30) for the fluid in vapour form, a cooling exchanger (42) swept by a cold source (F) for condensation of the working fluid, a working fluid tank (48) and working fluid circulation lines (52, 54, 56, 58, 60, 62). According to the invention, tank (48) is connected to a depression generator (50).

Abstract: A method for operating an engine automatic stop-start system used in a motor vehicle fitted with an internal combustion engine. The system allows: automatic stoppings of the engine when a set of conditions outside and inside the vehicle are satisfied; automatic startings of the engine following an automatic stopping when at least one engine demand condition is met. The method includes an internal value which is a count of a number of operations of the system, wherein the internal value is subjected to a high threshold and to a low threshold, and the method can modify at least one of the conditions outside or inside the vehicle if the internal value reaches the low threshold or reaches the high threshold.