| 摘要 |
<p>A film (17) of color change material is formed on the outer surface (12) of a liquid-carrying hose (10) to provide a leak detection function. Should pressurized liquid leak through a crack in the hose (10) wall (11) (or at a loosely clamped end of the hose (10)) the detection material will react with the escaping liquid to provide a visible indication of leaking condition. One example of usage of the invention is on coolant circulation hoses (10) used in internal combustion engines; another usage is in a hydraulic system.</p> |
