Abstract:
Urea feed or return line (2) that comprises a hollow coupling (1) enabling it to be connected to a urea tank and that comprises a passage for the urea, this coupling being, in addition, equipped with a heating filament (9), at least one part of which extends freely inside the passage provided for the urea, this part having the shape of a loop or a spiral capable of also extending at least partly into the tank and/or into a tube attached thereto.
Abstract:
System for storing an additive and injecting it into the exhaust gases of an internal combustion engine of a vehicle, said system comprising a tank (1) for storing the additive, an injector (5) and a device (3) for transporting the additive from the tank to the injector via an injection line (2), said device being of the venturi type sing an exhaust gas from a urbo charge connected to the engine and capable of sucking up the amount of additive necessary for optimizing its effect regardless of the location of the additive tank in the vehicle.
Abstract:
Canister for fuel tank comprising a housing (2) and an alveolar monolithic structure (1) based on activated charcoal, the monolithic structure (1) being fixed in the housing (2) by means of a fastening system comprising at least one foam (4, 5).
Abstract:
Urea tank and base plate (1) with an integrated heating element (2) in which said heating element (2) comprises at least one flexible part which is preferably a flexible heater (2) comprising at least one resistive track affixed to one, and/or placed between two, flexible film(s).
Abstract:
System for storing an ammonia precursor for injection into an exhaust line (4) of an internal combustion engine, the said system comprising a tank (1) equipped with a ventilation line (10) comprising a canister (3) for absorbing the ammonia vapours generated in the tank, this canister being connected to a purge line (13) mountable on the exhaust line of the engine.
Abstract:
Method and system for controlling the operationof a pump Method for controlling the operationofa pump driven by an electric motor and controlled by a controller, according to which an ECMsends, to the controller, a PWM (Pulse Width Modulation) control signal having a duty cycle that varies as a function of the desired operating conditions for the pump and according to which the controller acts on the electric motor to apply said operatingconditions to the pump.
Abstract:
A fuel vapour storage and recovery apparatus for the fuel system of a motor vehicle having an internal combustion engine (1) with an exhaust pipe (2) and a fuel tank (3) containing a fuel vapour/air mixture (4) above a liquid fuel (5), the exhaust pipe (2) being close to the fuel tank (3), said apparatus comprising: - a vapour storage canister (6) having a fuel vapour adsorbent material (7) therein, - thermal insulation means (8) for thermally insulating at least a portion of the fuel tank (3) from the heat generated by the exhaust pipe (2), and - a heat exchanger (9), wherein the heat exchanger (9) is adapted to heat to a purge temperature air guided there through by absorbing heat from the thermal insulation means (8).
Abstract:
Fuel system intended for an internal combustion engine and comprising a fuel tank (1), a filler tube (2) for filling the tank and a pump (3) for supplying the engine with fuel, the pump (3) being fastened to the filer tube (2), said fuel system being characterized in that a fuel trap (7) is integrated to the filler tube (2), said fuel trap lying at the bottom of the fuel (1) and comprising the fuel pump (3) inside or on top of it.
Abstract:
System for storing an additive solution and injecting it into the exhaust gases of an internal combustion engine, said system comprising a tank (1) for storing the additive and a rotary pump (3), a metering valve (4) and an injector (8) which a separate devices, this system making it possible to meter and inject the additive solution into the exhaust gases as is, without diluting it with a gas. In this system, the pump outlet pressure is regulated by adjusting the rotational speed of the pump. Process using such a system.
Abstract:
A system for storing an ammonia precursor comprises a tank (1), a filler pipe equipped with a cap and a ventilation line (10) establishing a direct connection between the filler pipe and a canister (3) and a valve (2) designed to specifically open this connection once the cap (12) starts to be opened, whreby the release of a puff of amonia is avoided.