VACUUM VALVE

VACUUM VALVE

PROBLEM TO BE SOLVED: To provide a vacuum valve to be used in insulating gas, having improved mechanical strength to achieve a longer mechanical life under repetitive fatigue even when there is a pressure difference between the inside and the outside of bellows. SOLUTION: The vacuum valve includes a...

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Hauptverfasser: SAKAGUCHI OSAMU, ASARI NAOKI, SATO JUNICHI, FUNABASHI TAKUMI, ISHII AKIRA, SHIOIRI SATORU, TAGAYA OSAMU
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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creator SAKAGUCHI OSAMU
ASARI NAOKI
SATO JUNICHI
FUNABASHI TAKUMI
ISHII AKIRA
SHIOIRI SATORU
TAGAYA OSAMU
description PROBLEM TO BE SOLVED: To provide a vacuum valve to be used in insulating gas, having improved mechanical strength to achieve a longer mechanical life under repetitive fatigue even when there is a pressure difference between the inside and the outside of bellows. SOLUTION: The vacuum valve includes a cylindrical vacuum insulating container 1, a fixed side sealing fitting 2 and a movable side sealing fitting 3 sealed to both-end opening portions of the vacuum insulating container 1, respectively, a fixed side energizing shaft 4 fixed to the fixed side sealing fitting 2 while passing therethrough, a fixed side contact 5 fixed to the fixed side energizing shaft 4, a movable side contact 6 for contacting/leaving the fixed side contact 5, a plurality of movable side energizing shafts 9, 10, 11 fixed to the movable side contact 6 while passing through the movable side sealing fitting 3 in a movable manner, and the plurality of bellows 12, 13, 14 sealed to the movable side energizing shafts 9, 10, 11 across the movable side sealing fitting 3, respectively. The movable side energizing shafts 12, 13, 14 have a smaller diameter than the fixed side energizing shaft 4. COPYRIGHT: (C)2011,JPO&INPIT
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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
title VACUUM VALVE
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