| 摘要 |
The invention relates to an oil draining device used for all vehicles with engines. The device uses a vacuum pump 1 which expels the air from a storage tank. When the reduced pressure in this tank reaches 0.95 bar at the manometer 3, the intake valve 4 connected to the worn-out oil reservoir of the vehicle is opened. The device principally allows garage operators to avoid using their workshop ramps. <IMAGE>
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