Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor
Patent
1991-03-01
1993-03-16
Bertsch, Richard A.
Pumps
Expansible chamber type
Having pumping chamber pressure responsive distributor
62 506, F04B 3910
Patent
active
051939916
ABSTRACT:
A pump for liquefied gases is provided having a low thermal conductivity liner provided in the inner bore of the pump cylinder. The low thermal conductivity liner prevents transmission to the pump cylinder of heat generated during the compression of the liquefied gas. The liner is preferably formed from a ceramic, such as zirconium, or from a plastic. In addition to the provision of the low thermal conductivity liner, techniques for reducing the dead volume of retained gases in the pump chamber are utilized to prevent the transmission of retained heat from the these gases to the incoming charge of liquefied gases.
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Koebler Douglas J.
Williams Glen P.
Bertsch Richard A.
Freay Charles G.
Suprex Corporation
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