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2 418 197

(13)

(51)

IPC

F04D29/58(2006-01-01)

F04D29/06(2006-01-01)

G21D1/04(2006-01-01)

(21) (22)

Application

2009135803/06, 2009-09-25

(24)

Start date

2009-09-25

(22)

Actual filing date

2009-09-25

(45)

Published

2011-05-10

(72)

Inventor

Gerasimov Vladimir SergeevichKazantsev Rodion PetrovichKomarov Aleksandr SergeevichNikiforov Sergej Arkad'EvichPautov Jurij MikhajlovichShtatskij Vladimir AleksandrovichShchutskij Sergej Jur'Evich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Konstruktorskoe Bjuro Mashinostroenija"

PRIMARY CIRCULATION PUMP UNIT Russian patent published in 2011 - IPC F04D29/58 F04D29/06 G21D1/04

Abstract RU 2418197 C1

FIELD: engines and pumps.

SUBSTANCE: each bypass of medium stages 7, 8 of end face seal assy 5 incorporates shut-off vales 11, 13 arranged communicated with throttle vale 10, 12 to inhibit leaks from seal assembly 5 with the help of shut-off valves 17 on drainage pipeline. Aftercooler 15 of shut-off water is arranged above seal assy 5 to allow steady gravity feed of shut-off water from said aftercooler 15 into seal assy space on primary circulation pump shaft 1.

EFFECT: higher reliability, reduced leaks through pump shaft seal assy, reduced rate of seal assy heating.

1 dwg

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RU 2 418 197 C1

Authors

Gerasimov Vladimir Sergeevich

Kazantsev Rodion Petrovich

Komarov Aleksandr Sergeevich

Nikiforov Sergej Arkad'Evich

Pautov Jurij Mikhajlovich

Shtatskij Vladimir Aleksandrovich

Shchutskij Sergej Jur'Evich

Dates

2011-05-10—Published

2009-09-25—Filed