  The evolution and physics of the common envelope (CE) phase are still not
well understood. Jets launched from a compact object during this stage may
define the evolutionary outcome of the binary system. We focus on the case in
which jets are launched from a neutron star (NS) engulfed in the outer layers
of a red giant (RG). We run a set of three-dimensional hydrodynamical
simulations of jets with different luminosities and inclinations. The
luminosity of the jet is self-regulated by the mass accretion rate and an
efficiency $\eta$. Depending on the value of $\eta$ the jet can break out of
the BHL bulge ("successful jet") and aligns against the incoming wind, in turn,
it will realign in favour of the direction of the wind. The jet varies in size
and orientation and may present quiescent and active epochs. The inclination of
the jet and the Coriolis and centrifugal forces, only slightly affect the
global evolution. As the accretion is hypercritical, and the specific angular
momentum is above the critical value for the formation of a disk, we infer the
formation of a disk and launching of jets. The disks' mass and size would be
$\sim$10$^{-2}$~M$_\odot$ and $\gtrsim 10^{10}$ cm, and it may have rings with
different rotation directions. In order to have a successful jet from a white
dwarf, the ejection process needs to be very efficient ($\eta\sim$0.5). For
main sequence stars, there is not enough energy reservoir to launch a
successful jet.
