Patent ID: 7114434

Claim:
A reciprocating compressor comprising: a cylinder block having formed therein a plurality of cylinder bores; a valve plate having formed therein pairs of holes with each pair constituted of a suction hole and a discharge hole, in correspondence with one of said cylinder bores; a first head fixed to said cylinder block via said valve plate and having formed therein a suction chamber that is allowed to come into communication with said suction hole and a discharge chamber that is allowed to come into communication with said discharge hole; a second head fixed to said cylinder block having formed therein a crankcase; a shaft rotatably disposed so as to pass through said crankcase; and pistons that reciprocally slide inside said cylinder bores as said shaft rotates, characterized in: that an oil separation means that separates lubricating oil mixed in a working fluid discharged into said discharge chamber and an oil tank in which the lubricating oil having been separated at said oil separation means is stored are provided; and that part of said oil tank is disposed at said cylinder block and a suction path through which the working fluid flows is formed at said cylinder block so as to surround said oil tank to allow the lubricating oil collected in said oil tank to be cooled with a working fluid guided into said suction chamber.