SWITCHING DEVICE CONICAL VALVE
PROBLEM TO BE SOLVED: To improve durability and to surely prevent generation of liquid leakage or collection, by eliminating rotating frictional resistance at switching rotation in a switching device of a conical valve, and enabling switching operation using a small rotational torque. SOLUTION: The...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To improve durability and to surely prevent generation of liquid leakage or collection, by eliminating rotating frictional resistance at switching rotation in a switching device of a conical valve, and enabling switching operation using a small rotational torque. SOLUTION: The conical valve 2 is formed capable of vertical infinitesimal motion by supply and exhaust of pressurized air through pressurized air supply and exhaust holes 6 and 7 in a conical part of a body 3, to which the conical valve 2 is fitted, a conical face of the conical valve 2 is brought close to the body 3 when transporting a liquid, while a micro clearance is formed between the conical face of the conical valve 2 and the body 3 at rotating switching of the transport direction of the liquid, so as to eliminate rotating frictional resistance and to enable switching with a small rotational torque. |
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