  Models of SN driven galactic winds for ellipticals are presented. We assume
that ellipticals formed at high redshift and suffered an intense burst of star
formation. The role of supernovae of type II and Ia in the chemical enrichment
and in triggering galactic winds is studied. In particular, several recipes for
SN feed-back together with detailed nucleosynthesis prescriptions are
considered. It is shown that SNe of type II have a dominant role in enriching
the interstellar medium of elliptical galaxies whereas type Ia SNe dominate the
enrichment and the energetics of the intracluster medium.
