Disclosed are a reciprocating compressor and a refrigerator having the
same. The reciprocating compressor comprises a casing, one reciprocating
motor mounted at a frame unit provided in the casing for generating a
linear-reciprocation driving force, a first compression unit for
compressing a refrigerant directly sucked without passing through the
inside of the casing by receiving the driving force of the reciprocating
motor, and a second compression unit for mixing a refrigerant introduced
into the casing and a refrigerant discharged from the first compression
unit and then compressing the mixed refrigerant once more by receiving
the driving force of the reciprocating motor. Accordingly, a refrigerant
is consecutively compressed two times, components are simplified, and the
compressor is easily controlled. Also, the refrigerator having the
reciprocating compressor decreases a load of the reciprocating compressor
thereby to enhance the efficiency of the refrigerator.