Idemitsu Kosan Company, Limited

Ebara Corporation

Mitsuaki Iino

Hideo Kanamori

Toshio Sakurai

Tadashi Koizumi

A method of and apparatus for measuring the density of fine particles floating in a fluid. The method includes the steps of: applying light to a fluid contained in a tubular member having an interior surface constituted by a mirror surface; condensing and detecting rays traveling toward one axial end of the tubular member among the light reflected by fine particles in the fluid; and subjecting the detected rays or signal to a predetermined processing, thereby measuring the density of the fine particles. The apparatus employed in this method includes: a tubular member; a light source directed in a direction perpendicular to the axial direction of the tubular member; a condenser lens disposed at one axial end of the tubular member; a detector opposing the condenser lens; and a processor which processes a signal applied thereto from the detector in a predeteremined manner to obtain the density of fine particles.

Method of and apparatus for measuring suspended fine particles

The present invention relates to a method and a system for lubrication of a mechanical system and the like used under the severe conditions, and includes a lubricating oil feeding device to the mechanical system, a lubricating oil extracting device, a device for analyzing properties of the lubricating oil thus extracted and a device for controlling in accordance with the result of the analysis. As commensurate to the degree of the extracted lubricating oil, new lubricating oil is fed into lubricated portions from the feeding device in response to a command from the controlling device, while, the lubricating oil is extracted from the lubricated portions to renew the lubricating oil.

Method and system for lubrication

Method of adjusting a concentration of oil in a water-containing oil material which comprises determining a change in buoyancy exerted on a plummet suspended in the oil material and controlling the amount of water being supplied to the oil material according to the change in buoyancy, and apparatus therefor.

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Ichihara, Japan

Mitsuaki Iino