Vane compressor having intermittent oil pressure to the vane bac

Details Vane compressor having intermittent oil pressure to the vane bac Vane compressor having intermittent oil pressure to the vane bac

1983-05-17

1984-08-28

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418 93, 418 94, 418 98, F04C 1800, F04C 2902

Patent

active

044681801

ABSTRACT:
The front and rear side blocks are each formed therein with a first lubricating oil passage which supplies high pressure lubricating oil, and at least one of the side blocks is formed therein with a second lubricating oil passage communicating with the back pressure chamber formed within the rotor. The first and second lubricating oil passages each open at one end in the sliding peripheral surface of a plane bearing formed with the corresponding side block. The drive shaft has its interior formed with a lubricating oil chamber and its peripheral wall formed with at least one lubricating oil feeding hole communicating with the lubricating oil chamber. As the drive shaft rotates, the lubricating oil feeding hole intermittently registers with the first lubricating oil passage and the second lubricating oil passage alternately, so that high pressure lubricating oil is intermittently supplied into the back pressure chamber, whereby the pressure of the same lubricating oil is added to the pressure of lubricating oil supplied there through the clearance between the plane bearing and the drive shaft, so as to keep the internal pressure in the back pressure chamber at a proper value.

REFERENCES:
patent: 2027594 (1936-01-01), Huff
patent: 2050533 (1936-08-01), Huff
patent: 2522824 (1950-09-01), Hicks
patent: 3744942 (1973-07-01), Mount
patent: 4071306 (1978-01-01), Calabretta

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