|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F04B-023/00 F04B-003/00 F04B-017/00|
|미국특허분류(USC)||417/243 ; 417/244 ; 417/266 ; 417/267|
|발명자 / 주소|
|인용정보||피인용 횟수 : 23 인용 특허 : 2|
A double acting multistage hydraulically driven gas compressor using a free floating piston including a hydraulic piston and a number of gas compressing pistons, those gas compressing pistons being sealed by high pressure oil supplied from the hydraulic drive stage.
A double acting multicompression stage hydraulically driven gas compressor comprising a free floating piston assembly having a double acting low pressure gas compression piston means guided in first bore means defining first and second chambers each provided with gas inlet and outlet means, at least one double acting high pressure gas compression piston means guided in second bore means defining third and fourth chambers each provided with gas inlet and outlet means, and double acting hydraulic piston means guided in third bore means defining fifth and s...