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Jeep Grand Cherokee1993-1999 of releaseRepair and car operation |
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Jeep Grand Cherokee + Cars of mark Jeep Grand Cherokee + Options and routine maintenance + Рядный the six-cylinder engine + Engine V8 + Procedure of the general and engine major repairs + Systems of cooling, heating and air conditioning + The power supply system and release of the fulfilled gases + System of an electric equipment of the engine - Systems of decrease in toxicity of the fulfilled gases and engine management The general information System of multiitem injection of fuel (MPFI) and information gauges - the description Removal and installation of the electronic module of management (РСМ) The description of a principle of action of system of self-diagnostics and procedure of reading of codes of malfunctions Information gauges System of operated ventilation картера (PCV) System recycling the fulfilled gases (EGR) System of catching of steams of fuel (EVAP) The Katalitichesky converter + Manual box of a gear change + Automatic transmission + Distributing box + Coupling and трансмиссионная a line + Brake system + Suspension bracket and steering + Body + System of an onboard electric equipment + Controls and operation receptions |
System of catching of steams of fuel (EVAP) The general description System EVAP carries out adsorption of steams of fuel and their burning as a part of a gas mixture during normal functioning of the engine. The structure of any system of catching of steams of fuel necessarily includes the adsorber filled with activated coal in which gathering of steams of gasoline is carried out. Difference of one system from another can consist in realisation management of a conclusion of evaporations. The description of the system typical for models of mark described in a given Management of cars which should supply the owner with the information, sufficient for understanding of a principle of a conclusion of steams of fuel on its car is more low resulted.
The cover of a mouth of a gulf of fuel is equipped by a double-thread safety valve. The valve serves for a conclusion in atmosphere of the evaporations which have accumulated in a fuel tank in default systems EVAP. Other cutting (unloading) valve is established on a fuel tank and serves for adjustment of a conclusion of steams of fuel from a tank in a coal adsorber depending on presence at a tank of superfluous or negative pressure (depending on an ambient temperature). After passage of the double-thread valve fuel evaporations on ventilating hoses arrive in the coal adsorber located in an impellent compartment where they are adsorbed by the activated coal and are stored to a conclusion in chambers of combustion of the engine.
When the engine is started and warmed up to in advance established temperature the cutting electromagnetic valve of a purge near to an adsorber closed, providing opening by depression of the inlet pipeline диафрагменного the valve of management with an adsorber purge. Thus fuel steams are deduced from an adsorber also under the influence of depression of the inlet pipeline.
Check
Always first of all check a condition of hoses, the detachment or which damage appears system EVAP cause of a failure more often. For check of correctness of connection of hoses be verified with the scheme of a lining of vacuum hoses put on шильду, fixed on a radiator support under a car cowl. In case of need make repair or replacement of the damaged hoses.
The unloading valve of a fuel tank
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