Shuhei Nagata

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The motion of the suction valve of a hermetic reciprocating compressor for a domestic refrigerator was measured with a strain gauge. The valve motion at a low rotation speed varied widely because of the sticking force of the lubricant oil. The motion of the suction valve was found to have an effect on the volumetric efficiency. The number of valve(More)
After the infection of foot-and-mouth disease outbreaks in Miyazaki, Japan, in 2010, cattle and swine were slaughtered and buried in a site of 100 ha, where weed control is difficult and costly since lands are unlevelled and prohibited to be plowed for 3 years. To consider the adaptability of napiergrass (Pennisetum purpureum Schumach.) to the animal burial(More)
A thrust bearing with a micro texture on its sliding surface that produces hydrodynamic pressure was developed for use in reciprocating compressors. Evaluation using an elemental friction test showed that its friction loss was 20– 60 % lower than that of the current design. Measurement of the efficiency of a compressor with the developed thrust bearing(More)
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