Woodcock Washburn LLP
Seal structure of compressor, and the compressor
 In a seal structure of a compressor according to the present invention, two O-rings 6 and 7 are disposed at a joint portion between a front housing 2 and a cylinder block 3 constituting a housing of a compressor 1. The inner O-ring 6 uses a material excellent in mechanical and chemical properties (nitrile rubber), and the outer O-ring 7 uses a material excellent in gas permeation resistance (butyl rubber). The inner O-ring 6 has a greater diameter and the outer O-ring 7 has a smaller diameter. 
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Y F Y
Y10S F04B Y10S
additional inventional additional
Toshiro Tatsuya Takayuki Naoya
Fujii Koide Imai Yokomachi