Patent ID: 6676392
Filing Date: 2004-01-13
Classification: F04C

Abstract:
A small-sized compressor, comprising:a compressed air tank (31); a first housing (35) provided with a shaft bore (36); a rotating shaft (32) disposed inside the compressed air tank (31) to be rotated by a motor, inserted into the shaft bore (36) of the first housing (35), and provided at an upper end thereof with a cam shaft portion (33); an orbiter (41) provided at a lower portion thereof with a cam shaft hole (42) to engage with the cam shaft portion (33) of the rotating shaft (32) without friction, and adapted to form a ring-shaped operating portion (43) and a circular space (44) surrounded by a ring gear (45) thereabove; a second housing (51) attached to the first housing (35) in a general bolting manner, and adapted to form another circular space (52) offset from the circular space (44) and surrounded by a ring gear (53); a rotating restrainer (61) provided with two sun gears (62, 63), and disposed in the circular spaces (44, 52) so that the sun gears (62, 63) engage with the ring gears (45, 53), respectively; and a circular vane (56) integrated with the second housing (51) through a connection portion (55) to form a ring-shaped compression chamber (54) together with the second housing (51), and disposed within the ring-shaped operating portion (43) of the orbiter (41), wherein the second housing (51) is provided therethrough with an air supply hole (57) and the circular vane (56) is provided therethrough with an air outlet (58) to connect an interior of the compressed air tank (31) and an open portion of the second housing (51).