Sanyo Electric Co., Ltd.

Yoshihisa Kogure

Takahiro Nishikawa

Hirotsugu Ogasawara

Masayuki Hara

Hiroyuki Yoshida

Masaji Yamanaka

Akira Hashimoto

Hiroyuki Sawabe

Kazuhiko Arai

Manabu Takenaka

Yoshiaki Hiruma

Etsuo Toriyama

An object of the present invention is to promote oil separation in a sealed container, thereby decreasing the amount of oil discharged to the outside of a compressor. The compressor comprises discharge hole provided at position facing the end surface of a rotor and through which a compressed refrigerant from first and second rotary compression elements is discharged into the sealed container; and a refrigerant flow path which is extended from a space surrounded with a coil end of a stator projecting from the end surface of the rotor to a rotary compression mechanism side to a space of an air gap between the rotor and the stator, to guide the compressed refrigerant discharged through the discharge hole to an electromotive element opposite to the rotary compression mechanism side. The outlet of this refrigerant flow path opposite to the rotary compression mechanism side faces the inner wall surface of the sealed container, and the volume of a space between the inner wall surface of the sealed container and the electromotive element is 1.5 times or more and 15 times or less that of a space between the rotary compression element and the electromotive element.

Sealed type rotary compressor

In a hermetically sealed compressorincluding a rotary compressing element () having at least one cylinder (A,B), and a roller () provided to the cylinder so as to be freely eccentrically rotatable, an electrically-driven element () for driving the roller () and a hermetically sealed container in which the rotary compressing element and the electrically-driven element are accommodated, oil () being stocked in the hermetically sealed container (), the oil () in the hermetically sealed container () is injected into the compression chamber () when refrigerant is sucked into the compression chamber () of the cylinder.

Hermetically sealed compressor and method of manufacturing the same

A hermetically sealed rotary compressorincluding an electrically-driven element, a rotary compressing elementequipped with a cylinderhaving a compression chamberand a hermetically sealed containerin which oilis stocked, is equipped with an oil pathfor injecting the oilinto the compression chamberwhen refrigerant is sucked into the compression chamber, and an opening/closing valvefor opening/closing the oil pathin accordance with the discharge pressure of the rotary compressing elementof the pressure of the compressed refrigerant compressed by the rotary compressing element

Hermetically sealed compressor having oil supply mechanism based on refrigerant pressure

There is provided a horizontal rotary compressor capable of improving performance thereof while an oil supply means smoothly supplies oil. A part of a hermetic shell case at the upper side is partitioned by a baffle into an electric element side and an oil pump side, a refrigerant which is drawn from an outside of the hermetic shell case is compressed by a first rotary compression element and a second rotary compression element and discharged toward the electric element side of the baffle, then it is further discharged from oil pump side toward the outside of the hermetic shell case. The baffle closes a flow path area of the refrigerant over an oil level inside the hermetic shell case at a ratio ranging from not less than 50% to not more than 80% during the stoppage of the horizontal rotary compressor.

Horizontal compressor

Growing community of inventors

Ora-gun, Japan

Yoshihisa Kogure