| 摘要 |
A refrigerant compressor in a wobble type suitable for air-conditioning systems for automobiles, in which pistons are reciprocated within respective cylinders by a wobble plate member driven by a wedge-shaped rotor member which is secured on a drive shaft. Needle thrust bearing assemblies are disposed between an inner surface of an end plate of a compressor housing and an end surface of the wedge-shaped rotor member and between an inclining end surface of the wedge-shaped rotor member and an end surface of the wobble plate member. Wear-resistant ring members are disposed in respective two of annular recesses formed in the end plate, the wedge-shaped rotor member and the wobble plate member, in which pairs of a race member and a needle roller cage assembly of the needle thrust bearing assemblies are received, and the other race members of the bearing assemblies are so disposed in the other annular recesses that the rotating movement thereof in the recesses may be prevented, whereby the end plate, the wedge-shaped rotor member and the wobble plate member may be protected from wearing during operations of the compressor. The ring members that are and the race members disposed in the same recesses as the ring members may be integratedly formed as one bodies.
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