| 摘要 |
A flow adjusting mechanism comprises a path, which connects a fuel tank and a gas discharging nozzle to each other, and a filter, which is located in the path. The filter has been obtained with a process, wherein an artificial leather layer, which has an open-cell microporous structure, and a micro-cellular polymer layer are laminated together, and the resulting laminate, which is composed of the artificial leather layer and the micro-cellular polymer layer, is hot-pressed such that a thickness of the laminate is reduced by 23% to 55% of an original total layer thickness of the laminate. The flow adjusting mechanism exhibits little change of a flame length with the passage of time and has a long service life.
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