| 摘要 |
<p>A steam cleaning apparatus comprising a combustion chamber (50) having an inlet means (48) arranged to be connected to a source of compressed air and a source of compressed combustible gas, and exhaust gas outlet means (58), a further inlet means (14) arranged to be connected to a supply of water, said further inlet means (14) being arranged to supply water to a heat receiving location in or adjacent to the combustion chamber (50) so that the water can be heated by combustion of the air and combustible gas, said apparatus further comprising a respective supply line (12, 10, 14) for gas, air and water and each supply line (12, 10, 14) containing a fluid pressure regulator (20, 18, 22) having an active side and a passive side, characterised in that inter-regulator conduit means (72, 74, 80) is provided for applying the regulated fluid pressure from the passive side or sides of one or more regulators (20, 18, 22) to the active sides of at least two regulators (20, 18, 22). </p> |
