Diffusion pumps

Details Diffusion pumps Diffusion pumps

1996-03-01

1997-12-23

Thorpe, Timothy

Pumps

One fluid pumped by contact or entrainment with another

Jet

F04F 900

Patent

active

057001340

ABSTRACT:
A diffusion pump is provided with an outer body and a chimney positioned within the outer body. A top cap is positioned about the top of the chimney to form an annular passageway (or an annular array of passageways) therebetween. A guard ring is positioned generally above the top cap. Coolers cool the outer body and the guard ring and working fluid present in the base of the outer body is heated to cause evaporated oil to pass up the chimney. A baffle, substantially thermally isolated from the guard ring, is contained within the outer body.

REFERENCES:
patent: 2078788 (1937-04-01), Bancroft
patent: 2855140 (1958-10-01), Sedlacsik, Jr.
patent: 3785162 (1974-01-01), Long et al.
patent: 3801225 (1974-04-01), Power
patent: 4108576 (1978-08-01), Landfors
patent: 4845360 (1989-07-01), Landfors
patent: 5137429 (1992-08-01), Broadhurst

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