Sanyo Electric Co., Ltd.

Akira Sugawara

Satoshi Imai

Kazuya Sato

Haruhisa Yamasaki

Takashi Sato

Masaya Tadano

Kenzo Matumoto

Hidekazu Yajima

Masaki Nakayama

Seiji Ebukuro

Takeo Igarashi

Hiroshi Mukaiyama

Ichiro Kamimura

Kazuaki Mizukami

Hiroshi Ogomori

Hiroyuki Itsuki

Etsushi Nagae

Kenzo Malumoto

There is provided an internal intermediate pressure multistage compression type rotary compressor capable of reducing a height dimension while reducing the amount of oil to be discharged outside. An electric element and first and second rotary compression elements which are driven by a rotary shaft of the electric element disposed under the electric element are provided in a hermetic shell case. There is provided a refrigerant introduction pipe for introducing refrigerant in the hermetic shell case over the electric element into the second rotary compression element through an outside of the hermetic shell case. There is provided an oil path provided in the rotary shaft for discharging oil through an oil discharge port which is positioned at the upper end of the rotary shaft. The refrigerant introduction pipe is provided such that apart of an inlet of the refrigerant introduction pipe is positioned under the upper end of a stator of the electric element.

Internal intermediate pressure multistage compression type rotary compressor, manufacturing method thereof and displacement ratio setting method

There is provided an internal intermediate pressure multistage compression type rotary compressor capable of reducing a height dimension while reducing the amount of oil to be discharged outside. An electric element and first and second rotary compression elements which are driven by a rotary shaft of the electric element disposed under the electric element are provided in a hermetic shell case. There is provided a refrigerant introduction pipe for introducing refrigerant in the hermetic shell case over the electric element into the second rotary compression element through an outside of the hermetic shell case. There is provided an oil path provided in the rotary shaft for discharging oil through an oil discharge port which is positioned at the upper end of the rotary shaft. The refrigerant introduction pipe is provided such that a part of an inlet of the refrigerant introduction pipe is positioned under the upper end of a stator of the electric element.

Filtering device for multistage compression type rotary compressor

Multistage compression type rotary compressor

A refrigerating machine comprising a compressor, a radiator, a pressure-reducing device, a gas-liquid separator, plural heat absorbers functioning selectively in different temperature zones, a unit for allowing introduction of gas refrigerant separated in the gas-liquid separator into an intermediate pressure portion of the compressor, and a low pressure side circuit in which liquid refrigerant separated in the gas-liquid separator is circulated, wherein the low pressure side circuit is provided with at least a heat absorber functioning in a low temperature zone.

Refrigerating machine

There is disclosed a vending machine in which a plurality of article columns are slant to be directed to a plurality of vending mechanisms, respectively. Each of the article columns is composed of a plurality of shelves for accommodating a row of articles. Each of the article columns is provided with a vending mechanism, so that articles of different kinds can be sold dependent on the number of the article columns. For this structure, at least one vending mechanism is set for an arbitrary one of article selection buttons. Thus, when the number of the article columns for accommodating the same kind of articles is set in accordance with the sales amount of the articles, different kinds of articles are sold out at an approximately same time.

Vending machine

There is disclosed a vending machine in which a plurality of article columns are slant to be directed to a plurality of vending mechanisms, respectively. Each of the article columns is composed of a plurality of shelves for accommodating a row of articles. Each of the article columns is provided with a vending mechanism, so that articles of different kinds can be sold dependent on the number or the article columns. For this structure, at least one vending mechanism is set for an arbitrary one of article selection buttons. Thus, when the number of the article columns for accommodating the same kind of articles is set in accordance with the sales amount of the articles, different kinds of articles are sold out at an approximately same time.

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Kumagaya, Japan

Akira Sugawara