Apparatus for adjusting operating speed of fluid-driven equipment

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United States of America Patent

PATENT NO 6164620
SERIAL NO

09339048

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus for adjusting an operating speed of a pneumatic valve 1 by means of a solenoid valve 2 including a disk-shaped orifice block 5 having a plurality of orifices 22-25 of different aperture sizes formed therein, and the orifice block is arranged rotatably between a sub-base 3 of the solenoid valve 2 and a main block 6. By rotating the orifice block 5, any one of said plurality of orifices formed in the orifice block 5 can be selectively inserted into the fluid passage between the pneumatic valve 1 and the solenoid valve 2. The operating speed of the pneumatic valve 1 can be easily adjusted in a digital manner, and the water hammer phenomenon can be effectively prevented.

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Patent Owner(s)

Patent OwnerAddress
KURODA SEIKO CO LTD239 SHIMOHIRAMA SAIWAI-KU KAWASAKI-SHI KANAGAWA PREFECTURE

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishige, Koji Asahi, JP 1 1
Shiba, Fumihiko Kawasaki, JP 1 1

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