| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a check valve which is designed to well and surely shift from a closed condition to an open condition even when the flow of a forward flow that opens the check valve is weak. <P>SOLUTION: The check valve has a valve passageway 12 formed between a front sheet 13 and a rear sheet 15. The front sheet 13 and the rear sheet 15 are arranged face to face to and fro in the width direction and keep the valve passageway in a closed condition by contact with each other. a flowing sheet 14 is arranged between the front sheet 13 and the rear sheet 15 and on the upstream side in the forward flow of the valve passageway 12. The flowing sheet 14 is arranged over the left to right direction crossing the flow direction of the forward flow on the upstream side in the forward flow of the valve passageway 12, and has flowability permitting a fluid to pass through the sheet in the direction crossing the width direction of the sheet. The fluid flowing forward flows into the valve passageway 12 through the interior of the flowing sheet 14 and opens the valve by separating the front sheet 13 from the rear sheet 15. <P>COPYRIGHT: (C)2013,JPO&INPIT |
