| 摘要 |
<p>An air intake unit 10 for an air compressor, the air intake unit 10 comprising an air chamber 12 having an inlet 14 and an outlet 16, the outlet 16 being adapted for fluid connection to an air intake of an air compressor, a sensor 34 located at the inlet 14 of the air chamber 12, the sensor 34 configured to detect the presence of unwanted fluid in an inlet air stream, the senor 34 having a T90 response time, and means for maintaining a positive pressure within the air chamber 12, wherein the air chamber 12 is configured such that the time taken for air to flow from the inlet 14 of the air chamber to the outlet 16 of the air chamber is greater than the T90 response time for the sensor 34. The unwanted fluids may comprise flammable or toxic gases. The air chamber may comprise one or more baffles 42.</p> |
