FIELD: engines and pumps.
SUBSTANCE: invention relates to pumps and aims at increasing reliability of pumps feeding cryogenic media and expanding the range of tolerable temperatures of cryogenic media application. The proposed pump incorporating an impeller, bearings and seals additionally comprises draining and bypassing lines, check valve, throttling device and receiver. Note here that the draining lines communicate the pump inner spaces with the receiver via check valve, while throttling device is arranged in the bypassing line to bypass the check valve.
EFFECT: higher reliability of cryogenic pump fast starting and expanded temperature range of tolerable temperatures of cryogenic media application.
1 dwg
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