| 摘要 |
<p>An air/oil mixture can conveniently be used as a lubricant. To produce the lubricant, oil under pressure is supplied alternately to a pair of separate oil lines (4, 5) and at least one dual-line metering valve (8) is connected to the lines to receive oil from each line in turn and to inject a predetermined quantity of oil into a mixing zone each time the supply of oil is changed from one line to the other. Air under pressure is supplied to the mixing zone to mix with the oil injected into the zone.</p> |
