| 摘要 |
PURPOSE:To suck up lubricating oil without fail after the shutdown of a lubricating oil supplying mechanism for many hours by specifying the typical dimension of a regenerative pump flow passage to 0.02mm.-1.0mm. and raising the self- priming capacity of the pump in a state where the inside of the regenerative pump is empty. CONSTITUTION:The flow of a fluid may provide a force for sucking up the lubricating oil 26 in a lubricating oil reservoir 25 via a lubricating oil introducing pipe 32. And, when the typical dimension Rm of a fluid passage is specified within the range from about 0.02mm. to 1.0mm., the height of sucking is raised and in a regenerative pump 27 its self-priming capacity is increased, enabling the self-priming capacity to be raised in a state where the inside of a pump housing 28 is empty. Thus, it is possible, even in case the operation of the pump is restarted after its shutdown for many hours, to suck up lubricating oil 26 and supply it to a part to be lubricated without fail. |
