Patent ID: 9206773
Filing Date: 2015-12-08
Classification: B60K,F02M

Abstract:
1. A fuel system for a hybrid motor vehicle having an internal combustion engine, comprising: a fuel tank; a fuel vapor venting path communicating with the fuel tank and containing an activated carbon filter; a purging path extending from the activated carbon filter to the internal combustion engine; a tank ventilating valve in the purging path between the activated carbon filter and the internal combustion engine; a condenser unit in the purging path between the activated carbon filter and the tank ventilating valve; a return line extending from the condenser unit to the fuel tank; an independent pump unit arranged close to the activated carbon filter and operative to urge a stream of fresh air through at least a periphery of the activated carbon filter and toward the tank venting valve to regenerate said filter; and a control unit connected at least to the pump, the condenser unit and the tank venting valve, the control unit being operative to operate the pump and the tank ventilating valve to purge the activated carbon filter under specified load states of the activated carbon filter when the internal combustion engine is operating and to operate the pump and the condenser unit to purge the activated carbon filter under specified load states of the activated carbon filter when the internal combustion engine is not operating.