We consider an extreme case of disk accretion onto a gravitating center when the dissipation processes in the disc: viscosity and finite electric conductivity are negligible. The angular momentum and the rotational energy of the accreted matter are carried out by a magnetized wind outflowing from the disk. The outflow of matter from the disk occurs due to the centrifugal mechanism [1]. The magnetic field is advecting to the gravitating center where it is dissipated due to reconnection. The disk itself is assumed to be cold. Accretion and outflow are connected by the conservation of the energy, mass and the angular momentum. The obtained solution provides mechanism which transforms the gravitational energy of the accreted matter into the energy of the outflowing wind with efficiency close to 100%. The final velocity can essentially exceed Kepler velocity at the site of the wind launch.

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