Air feeder is reclaimd in automobile -used gas

The utility model relates to an air feeder is reclaimd in automobile -used gas, including the gas bomb, be connected with the pressure release pipeline on the gas bomb, the intercommunication has the recovery gas cylinder on the pressure release pipeline, on the gas bomb also the intercommunication have an air supply line who is used for to the engine air feed, retrieve and also be provided with the pressurize pipeline between gas cylinder and the gas bomb, establish ties on the pressurize pipeline switch on the pressurize pipeline when having atmospheric pressure in the gas bomb to be less than minimum standard air feed atmospheric pressure, the on -off valve of disconnection pressurize pipeline when the atmospheric pressure in the gas bomb is higher than minimum standard air feed atmospheric pressure. The natural gas in the gas bomb is when atmospheric pressure is less than minimum standard air feed atmospheric pressure after to engine air feed a period, will reclaim through the pressurize pipeline that the recovery natural gas in the gas cylinder refills in the gas bomb so that the atmospheric pressure of gas bomb risees and reaches minimum standard air feed atmospheric pressure to can be to the engine air feed, make full use of reclaim the natural gas in the gas cylinder, and alleviated the not enough phenomenon of gas bomb air feed in the at utmost.