Patent ID: 6224349
Filing Date: 2001-05-01
Classification: F04B

Abstract:
A reciprocating type compressor comprising:a housing forming an outer casing;a compression mechanism provided in said housing for suctioning and compressing fluid;a shaft rotatably supported by said housing, said shaft transmitting a rotational force to said compression mechanism, said shaft including an eccentric portion being eccentric to a center axis of said shaft;a suction chamber formed in said housing, from which the fluid is suctioned;a discharge chamber formed around said suction chamber in said housing, to which the fluid is discharged;a partition wall partitioning said discharge chamber from said suction chamber, said partition wall including a radial wall defining end surface and an annular groove;an end wall having a suction port through which the fluid is suctioned from said suction chamber into said compression mechanism; anda valve plate provided between said end wall and the end surface of said radial wall and rotatably connected with said eccentric portion for substantially orbiting about the center axis by receiving a rotational force from said eccentric portion, whereinsaid valve plate opens and closes said suction port while orbiting the center axis, whereinsaid annular groove accommodates an outer periphery of said valve plate when said valve plate orbits the center axis.