| 摘要 |
The present invention comprises an apparatus for producing high pressure fluid by means of a cylinder having a reciprocatingly sliding ram inside, suction and pressurization of the fluid being performed by the reciprocation of said ram. In the apparatus, an oil chamber is positioned on the intensifying side within said cylinder, and lubricating oil in said oil chamber is caused to have a pressure equivalent to that of the high pressure fluid produced. This oil pressure is transmitted to the slidable contact portions of the ram. The apparatus is capable of detecting the lack of lubricating oil, when such lack of lubricating oil occurs.
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