  We present a hybrid equation of state (EoS) for dense matter in which a
nuclear matter phase is described within the Dirac-Brueckner-Hartree-Fock
(DBHF) approach and a two-flavor quark matter phase is modelled according to a
recently developed covariant, nonlocal chiral quark model. We show that modern
observational constraints for compact star masses (M ~ 2 M_sun) can be
satisfied when a small vector-like four quark interaction is taken into
account. The corresponding isospin symmetric EoS is consistent with flow data
analyses of heavy ion collisions and points to a deconfinement transition at
about 0.55 fm^-3.
