Engine supercharger lubricating apparatus
AssigneeNissan Motor Co., Ltd.
InventorsArata TAGUCHI, Hidetsugu KOMATSU
Life of this patent
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Abstract
An engine supercharger lubricating apparatus is provided with an oil passage, a pump and an air introducing passage. The oil passage is configured and arranged to supply a lubricating oil to a supercharger of an engine and to return the lubricating oil from the supercharger to an oil pan. The pump is arranged in the oil passage at a location downstream of the supercharger for pumping the lubricating oil from the supercharger to the oil pan. The air introducing passage is arranged to introduce air into the oil passage at a location downstream of the supercharger and upstream of the pump.
Claims7
An engine supercharger lubricating apparatus comprising:
- an oil passage configured and arranged to supply a lubricating oil to a supercharger of an engine and to return the lubricating oil from the supercharger to an oil pan;
- a pump arranged in the oil passage at a location downstream of the supercharger for pumping the lubricating oil from the supercharger to the oil pan;
- and
- an air introducing passage arranged to introduce air into the oil passage at a location downstream of the supercharger and upstream of the pump.
An engine supercharger lubricating apparatus comprising:
- oil passage means for supply a lubricating oil to a supercharger of an engine and for returning the lubricating oil from the supercharger to an oil pan;
- pump means for pumping the lubricating oil via the oil passage means from the supercharger to the oil pan at a location downstream of the supercharger;
- and
- air introducing means for introducing air into the oil passage means at a location downstream of the supercharger and upstream of the pump means.
A method of lubricating a supercharger of an engine comprising:
- supply a lubricating oil to a supercharger of the engine;
- creating negative pressure in an oil passage between the supercharger to an oil pan of the engine to draw the lubricating oil from the supercharger to the oil pan;
- and
- introducing air into the oil passage at a location downstream of the supercharger and upstream of the oil pan to decrease the negative pressure in the oil passage.
Dependencies are inferred from the claim text.