Patent ID: 8485794

Claim:
A reciprocating compressor with a rotary valve comprising: a cylinder block having a plurality of bores; a drive shaft rotatably supported by the cylinder block; a plurality of pistons reciprocally accommodated within the cylinder bores; a power transmission connecting the pistons and the drive shaft; a housing having a suction chamber and a discharge chamber; and a rotary valve configured to rotate together with the drive shaft and slidably installed on an inner surface of a coupling hole formed in the cylinder block, wherein communication holes connected to the plurality of cylinder bores respectively are formed on an inner peripheral surface of the coupling hole of the cylinder block and a refrigerant discharge opening is formed on an outer peripheral surface of the rotary valve, wherein a bypass means for bypassing a refrigerant left within the communication hole of the cylinder bore in which a compression stroke is performed and then discharging the refrigerant to the communication hole of another cylinder bore is provided between the coupling hole and the rotary valve, and wherein the bypass means includes at least one temporary storage groove formed on an inner peripheral surface of the coupling hole of the cylinder block aloneg circumferential direction thereof, and a first discharge groove and a second discharge groove, which are formed on the outer peripheral surface of the rotary valve, communicated with the temporary storage groove with the refrigerant discharge opening being interposed therebetween.