Constant voltage formula doublestage oil supply unit

The utility model relates to a constant voltage formula doublestage oil supply unit, including oil tank, mutual pipe, mutual pipe sets up side outside the oil tank, mutual pipe is including the base member, be provided with the oil pocket in the base member, be provided with time oil pipe, confession oil pipe, the emergent oil pipe of confession, the play oil pipe that are linked together with theoil pocket on the base member, be provided with big motor -driven pump, little motor -driven pump in the oil tank, big motor -driven pump management way is connected with supplying oil pipe, and little motor -driven pump management way is connected with the emergent oil pipe that supplies, and time oil pipe exit is provided with the pressure release oil discharge device who is used for the switching export, goes back to oil pipe management way and is linked together with the oil tank, goes out oil pipe management way looks fuel sprayer transport fuel, the utility model discloses a two motor -driven pumps, guaranteed