Helium gas compressing apparatus

Details Helium gas compressing apparatus Helium gas compressing apparatus

1990-11-14

1992-08-11

Makay, Albert J.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

62 84, 62468, 62473, F17C 506, F17C 1302, F25B 900, F25B 4104

Patent

active

051368510

ABSTRACT:
A helium gas compressing apparatus constructed in such as manner that: an oil separator in a high-pressure gas passage is connected to a low-pressure gas passage; and oil return path having first and second branch paths is provided between the high- and low-pressure gas passages; a capillary tube is installed in one of the two branch paths; and an adjustment valve is installed in the other branch path to adjust the pressure difference between the supply gas in the high-pressure gas passage and the return gas in the low-pressure gas passage. Because of this construction, the adjustment valve can be manipulated from outside to make fine adjustments on the pressure difference or change it to a desired value with ease even during operation of the apparatus, thereby adjusting the refrigerating capability of a helium refrigerating machine connected to the apparatus and the power consumption of the helium gas compressing apparatus.

REFERENCES:
patent: 2867098 (1959-01-01), Kocher
patent: 4462219 (1984-07-01), Iwata
patent: 4557115 (1985-12-01), Nakamura
patent: 4693736 (1987-09-01), Klusmier
patent: 4718442 (1988-12-01), Nicoll
patent: 4799359 (1989-01-01), Nicoll
patent: 4949546 (1990-08-01), Klusmier et al.

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