| 摘要 |
PROBLEM TO BE SOLVED: To detect whether fluid is flowing in a fluid passage or not, and to confirm its direction by viewing from the outside when it is flowing. SOLUTION: This device for displaying the flow direction of fluid has an outside cylindrical body 22 provided on the outside of an inside cylindrical body 17, and a storage chamber 21 is formed between them. In this storage chamber 21, a display member 31 in which a pressure receiving protrusion 33 protruding into the fluid passage 14 is provided through a through hole 32 is assembled so that it is movable in its axial direction, and spring force in the direction going toward a neutral position is applied to the display member 31 by a spring member 34. A display window 35 for making the position of the display member 31 displayed outside is provided in the outside cylindrical body 22. A center position display part 36 and two flow direction display parts 36a, 36b are provided in the display member 31. COPYRIGHT: (C)2007,JPO&INPIT
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