Mayekawa Mfg. Co., Ltd.

Mayekawa Manufacturing Co., Ltd.

Yasuhiro Hirao

Masaru Murakami

Makoto Yamamoto

Yukio Hirano

Choiku Yoshikawa

Kazutoshi Ito

Takeshi Kamimura

Kazuyuki Iwase

Kazuo Hariu

Seiichiro Matsuda

Munehiko Yokokawa

Hiroyuki Nakagawa

Kazuhiko Yokokawa

Kousaku Nishida

A low temperature zone forming system by convection type thermal stratification in which the low temperature zone separated from polluted outside air is formed on a movable or fixed table for handling commodities such as marine products while maintaining freshness thereof during the period from carrying-in in the whole sale market, during selling by auction, until shipment of the commodities from the market, comprising an upward-open case body () mounted on a chassis (), a separate brine chilling unit (), and a brine piping (), the upward-open case body () further comprising a roller conveyer () installed in the center part of the floor of the case body (), cooling flat plates each of which is installed adjacent to the roller conveyer (), and cooling flat plates are installed on the inside faces of both laterally longitudinal side walls.

Low temperature zoning formation system for holding freshness of food

Defrosting frost deposited on the coolers disposed in a refrigerating-storage room for cooling the room can be carried out without the necessity of stopping the operation of refrigerating cycle and with low cost and high efficiency. Compressed air is blown to the coolers by means of nozzles to which the compressed air is supplied intermittently.

Defrosting system using compressed air

Low temperature physical distribution system and method and apparatus for maintaining quality in auction market

A low temperature waste crushing system including a low temperature freezing section for cooling waste material below the cold shortness transition temperature by receiving a supply of refrigeration from a heat sink, and a crushing section for crushing the material cooled in the low temperature freezing section by taking advantage of cold shortness. The low temperature freezing section is configured in dual steps, the preceding step being supplied with the higher temperature refrigeration of the first refrigerating cycle and the succeeding step being supplied with the lower temperature refrigeration of the second refrigerating cycle. The heat sink is configured in a binary refrigeration cycle including a first cycle of ammonia refrigerant for obtaining the first refrigeration temperature, which is higher that the cold shortness transition temperature; and a second cycle of hydrocarbon refrigerant for obtaining a second refrigeration temperature, which is lower in temperature that the cold shortness transition temperature. The device is able to reduce the burden to the environment in comparison with prior art cooling systems.

Low temperature waste crushing system taking advantage of cold shortness

Processing, such as grinding or cutting, in a cold air blast is performed at low temperature with higher precision and higher efficiency in a pollution-less situation, wherein a conventional processing fluid is not applied. A compressed dry cold air of a temperature of minus 30.degree. C. or lower is blasted to a processing spot during processing, while a pollution-less fine mist of an oil, such as Accu-Lube, is supplied to the surface of a grinding stone in a small amount, or with a processing tool which has been treated in a fixed lubrication treatment. The apparatus includes a cooler for cooling a temperature of a filtered, compressed, dry air to minus 1.degree. C. or lowers a cold air blasting unit for supplying the cooled dry air to a processing spot, and a device which supplies a mist of a pollution-less oil, such as a vegetable oil or the like, to the processing spot directly or indirectly by the help of the processing tool.

Method and apparatus for processing in cold air blast

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Tokyo, Japan

Yasuhiro Hirao