A compressor includes a compression chamber for compressing working fluid within
an inside thereof, a discharge port, through which the working fluid flows out
from the compression chamber, and a discharge valve for opening or closing the
discharge port. The discharge valve includes a valve seat portion provided in the
discharge port and having a tapered surface, so that a cross-section area of the
discharge port comes to be large from a side of the compression chamber. The valve
has a projection portion having a tapered surface in contact with the tapered surface
of the valve seat portion. A spring is provided on a member formed in one body
with the valve seat portion, for positioning the valve to the valve seat portion,
wherein clearance volume of the discharge port is reduced, so as to improve the
performances thereof.
