释义 |
dry sump system dry sump (lubrication) systemAn engine lubrication system in which the lubricating oil is carried in an external tank and not internally in a sump. The sump is kept relatively free from oil by scavenging pumps, which return the oil to the tank after cooling. The opposite of a wet sump system. The pumping capacity of scavenge pumps is higher than that of the engine-driven pumps supplying oil to the system. |