Abstract: The object of the invention is a heater of a corrosive fluid comprising at least one heat diffuser having at least a first portion intended to be immersed in a corrosive fluid, and at least a second portion intended to be arranged out of the corrosive fluid, at least one heating block comprising at least one heating member configured to heat the corrosive fluid, said heat diffuser comprising at least one housing in which the at least one heating block is housed at least partially, at least the first portion of the heat diffuser being made of anodized aluminum or of anodized aluminum alloy and is configured to be in direct contact with the corrosive fluid. The object of the invention is also a corrosive fluid tank comprising a heater according to the invention and a method for manufacturing a heat diffuser of the heater according to the invention.

Abstract: The invention concerns a circuit intended to transfer, by means of a pump, first fluid, such as an aqueous urea solution, from a reservoir to an injector, said circuit also containing a second fluid, such as air, and said circuit comprising, downstream of the pump and of the reservoir, a downstream circuit portion which includes, on the one hand, a main branch which leads to the injector and, on the other hand, bypass branch which returns to the reservoir and which is provided with a double-seat valve designed to selectively and automatically adopt: purge configuration allowing to purge the second fluid through the valve out of the main branch, a pressurized supply configuration allowing to direct the first fluid to the injector under a predetermined working pressure, and a recirculation configuration allowing a recirculation through the bypass branch, and to the reservoir, of the first fluid coming from said reservoir.

Abstract: The object of the invention is a heater of a corrosive fluid comprising at least one heat diffuser having at least a first portion intended to be immersed in a corrosive fluid, and at least a second portion intended to be arranged out of the corrosive fluid, at least one heating block comprising at least one heating member configured to heat the corrosive fluid, said heat diffuser comprising at least one housing in which the at least one heating block is housed at least partially, at least the first portion of the heat diffuser being made of anodized aluminum or of anodized aluminum alloy and is configured to be in direct contact with the corrosive fluid. The object of the invention is also a corrosive fluid tank comprising a heater according to the invention and a method for manufacturing a heat diffuser of the heater according to the invention.

Abstract: The invention concerns a circuit intended to transfer, by means of a pump, first fluid, such as an aqueous urea solution, from a reservoir to an injector, said circuit also containing a second fluid, such as air, and said circuit comprising, downstream of the pump and of the reservoir, a downstream circuit portion which includes, on the one hand, a main branch which leads to the injector and, on the other hand, bypass branch which returns to the reservoir and which is provided with a double-seat valve designed to selectively and automatically adopt: purge configuration allowing to purge the second fluid through the valve out of the main branch, a pressurized supply configuration allowing to direct the first fluid to the injector under a predetermined working pressure, and a recirculation configuration allowing a recirculation through the bypass branch, and to the reservoir, of the first fluid coming from said reservoir.