| 摘要 |
<p>PURPOSE:To restrain the occurrence of bearing separation phenomenon by using a corrosion resistance material containing at least the specified ratio or more of chrome for both or one of race and rolling element materials in all or at least one of the aforesaid bearings positioned in a compressor. CONSTITUTION:When a drive shaft 1 rotates, a swash plate 2 rotates as well. Then, a piston support 7 retained on the swash plate 2 via a thrust roller bearing 5 and a radial ball bearing 6, performs oscillation motion. As a result, a piston 9 connected to the piston support 7 via a connecting rod 8 reciprocally moves within the bore 11 of a cylinder 10. Consequently, a low pressure refrigerant passes the suction port 26 of a rear cover 19 and is absorbed from a low pressure chamber 17 into the bore 11 via a suction valve 15 located at a suction port 12. The low pressure refrigerant is thereby turned into a high pressure refrigerant, thereby causing the separation of the surface layer of a bearing rolling element in a short time. In the aforesaid constitution, a martensite stainless steel (SUS 440C as per JIS) having corrosion resistance quality and a less hydrogen diffusion factor than conventional bearing steel, for example, is selected as the material of the aforesaid bearing material.</p> |
