Patent ID: 9206804
Filing Date: 2015-12-08
Classification: F04C

Abstract:
1. A compressor for vehicle including a housing, the compressor comprising: a compression portion located in the housing; a rotary shaft connected with the compression portion at one end; a motor driving the compression portion through the rotary shaft; a motor accommodation chamber accommodating the motor; a suction port formed in the housing and sucking fluid into the motor accommodation chamber; and a first shaft portion and a second shaft portion formed at both ends of the rotary shaft; wherein the first shaft portion is formed between the compression portion and the motor, and is supported by a first bearing, wherein the second shaft portion is formed between the motor and the housing, and is supported by a second bearing, wherein a coil spring is wound around the second shaft portion so as to rotate with the second shaft portion, wherein the rotary shaft forms a spring supporting portion and the diameter of which is greater than that of the second shaft portion, wherein the second bearing includes an inner race, wherein the coil spring is installed between the inner race of the second bearing and the spring support portion of the rotary shaft, wherein the second shaft portion is relatively movable with respect to the inner race of the second bearing in the axial direction, and wherein the second shaft portion and the second bearing are disposed in the motor accommodation chamber and the suction port is opened to the motor accommodation chamber so as to face the second shaft portion.