Patent ID: 6227814
Filing Date: 2001-05-08
Classification: F04B

Abstract:
A reciprocating refrigerant compressor comprising:a cylinder block having formed therein a plurality of cylinder bores arranged to be parallel with one another around an axis extending between opposite ends of said cylinder block;a valve plate arranged adjacent to said cylinder block and having bored therein a plurality of suction ports and a plurality of discharge ports which are respectively positioned to be in registration with said cylinder bores;a housing assembly assembled to said cylinder block to close the opposite ends of said cylinder block and defining a suction chamber, a discharge chamber, and a crank chamber;a suction valve interposed between one of the opposite ends of said cylinder block and said valve plate;a discharge valve interposed between said valve plate and an end of said housing assembly;a plurality of pistons arranged to be reciprocated in said plurality of cylinder bores for the compression of a refrigerant sucked from said suction chamber and for the discharge of the compressed refrigerant into said discharge chamber;a sealing unit held in at least one of boundaries between one of the opposite ends of said cylinder block and said suction valve and between said suction valve and said valve plate, said sealing unit comprising a plurality of annularly extending sealing portions arranged to surround respective bore ends of said plurality of cylinder bores.