| 摘要 |
A pressure cistern for flushing a toilet, with an airbag, an injector and its own outlet valve. A pressure cistern for flushing a toilet (fig. 1), containing an airbag (2) or airbags. It fills with water through an injector (3) which also supplies the air vessel with air pumped in from the atmosphere through a non-return valve (5). The valve in figure 2 may be fitted to the cistern, or the valve in figure 3 may be fitted to the cistern's outlet pipe, so that water flows out through the valve in figure 2 or figure 3 towards the toilet bowl. <IMAGE>
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