| 摘要 |
<p>A device for detecting the presence of solid impurities within a pressurised fluid includes a housing with a fluid passage in which a filter element 54 is located. One end of the passage 34 is open to the pressurised fluid 30 from pump 12 and the other end 40 to a low pressure input 20 to the pump. The presence of the pressurised fluid in the passageway is sensed by a pressure transducer 58 and an increase in pressure due to clogging of the filter 54 is detected to indicate the presence of impurities. The device is of particular application to turbocharger diesel engines. The transducer communicates with the fluid passageway 36 between the pressurised outlet 30 and the filter 54 by means of a transverse intersecting passageway 60. An indicator 62 is coupled to the transducer. <IMAGE></p> |
