  Directed transport of self-propelled ellipsoidal particles confined in a
smooth corrugated channel with asymmetric potential and Gaussian colored noise
is investigated. Effects of the channel, potential and colored noise on the
system are discussed. Large x axis noise intensity inhibits the transport. The
directed transport speed has a maximum with increasing y axis noise intensity.
Proper size of the bottleneck is good for the directed transport of the
ellipsoidal particles, but large and small size of bottleneck inhibits this
directed transport. The transport reverse phenomenon appears with increasing
load and self-propelled speed. Perfect sphere particle is easier to directed
transport than needlelike ellipsoid particle.
