Deriving mechanical power by expanding a liquid to its vapour

Details Deriving mechanical power by expanding a liquid to its vapour Deriving mechanical power by expanding a liquid to its vapour

1997-01-15

1998-11-10

Wayner, William

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

60530, 62116, F25B 100

Patent

active

058334467

ABSTRACT:
An apparatus is provided for deriving mechanical power from expansion of a working fluid, other than water, from a liquid state at a first pressure to vapour at a second, lower pressure, which apparatus includes positive displacement machinery, wherein the in-built volumetric expansion ratio of the positive displacement machinery is between 10 and 50% of the overall volume ratio of expansion experienced by the fluid in the pressure reduction between the entry and the exit of the machinery.

REFERENCES:
patent: 4235079 (1980-11-01), Masser
patent: 4794752 (1989-01-01), Redderson

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