Panasonic Corporation

Panasonic Appliances Refrigeration Devices Singapore

Kenji Kinjo

Ko Inagaki

Masanori Kobayashi

Akira Nakano

Akihiko Kubota

Kazuhiro Yokota

Terumasa Ide

Takahide Nagao

Naohiro Hamada

Masakazu Yamaoka

Hiromitsu Iwata

A hermetic compressor includes, inside hermetic container (), electric motor element (), compression element () driven by electric motor element (), and lubricating oil () for lubricating compression element (). The hermetic compressor further includes vibration damping member () having one part fixed to hermetic container () and another part being free end part (). Structurally, a natural frequency of vibration damping member () is in substantial conformity with a natural frequency of hermetic container ().

Hermetic compressor and refrigeration device

A sealed compressor of the present invention comprises an electric component (); a compression component () actuated by the electric component (); and a sealed container () which accommodates therein the electric component () and the compression component (), and stores lubricating oil therein; wherein the compression component () includes a crankshaft () including a main shaft () and an eccentric shaft (); a cylinder block () including a bearing unit () supporting the main shaft () such that the main shaft is rotatable, and a cylinder () defining a compression chamber (); and a suction muffler () through which a refrigerant gas () flows from an interior of the sealed container () to an interior of the compression chamber (); a separating wall () is provided between the suction muffler () and the electric component (); a first space () is formed between the suction muffler () and the separating wall (); and a second space () is formed between the electric component () and the separating wall ().

Sealed compressor and refrigeration unit including sealed compressor

A sealed compressor of the present invention comprises an electric component (); a compression component (); a sealed container (); and a suction pipe (); wherein the compression component () includes a compression chamber (), and a suction muffler () through which a refrigerant gas flows; wherein the suction muffler () includes a muffler body () in which a muffling space () is formed, a tail pipe () through which a refrigerant gas is introduced into the muffling space (); and a muffler cover () provided to surround the muffler body () such that a first space () is formed between the muffler cover () and the muffler body (); wherein the muffler cover () is provided with a refrigerant inlet () in a portion which faces an outlet () of the suction pipe () and is in the vicinity of a suction port () of a tail pipe (), the refrigerant inlet communicating the interior of the sealed container () with the first space ().

Sealed compressor with a suction muffler comprising an insulating space

There is disclosed a sealed compressor in which a compressive component housed inside of a sealed container comprises a block, a suction valve, a piston, and a suction muffler, the suction muffler including a muffler body defining a muffler space and an outlet tube communicating the muffler space with the suction valve, the outlet tube having a bent portion bent in a middle portion between an opening exposed to the muffler space and an opening in a vicinity of the suction valve, a first outlet tube portion extending from the bent portion toward the muffler space, and a second outlet tube portion extending from the bent portion toward the suction valve, wherein a close sided space is formed in a vicinity of the bent portion, the close sided space having one end in communication with the outlet tube and the other end closed.

Sealed compressor and refrigeration device

A valve plate includes a suction port to which gas to be compressed in a compression chamber flows in and a discharge port from which gas compressed in the compression chamber is discharged, a projection that appears from the discharge port with the reciprocating movement of the piston is arranged at a position facing the discharge port at a distal end face of the piston, and the projection includes a flat surface extending parallel to a reciprocating direction of the piston, so that a highly efficient hermetic type compressor that reduces the dead volume of the discharge port and reduces the loss in the compression chamber and the discharge port is provided.

Hermetic compressor and refrigeration system

A compression element is provided with a block, a piston, a valve plate arranged in an opening end of a compression chamber and forming a suction hole, a suction valve, a suction muffler forming a sound absorbing space and provided with a communication pipe, and a cylinder head, the communication pipe has a suction muffler outlet portion communicated with the suction hole, is arranged in such a manner as to extend in a vertical direction with respect to a center line passing through the suction hole, and is arranged in such a manner that a part of the suction muffler outlet portion covers a part of the suction hole in the suction muffler outlet portion positioned in a downstream side of refrigerant gas flowing through the communication pipe, in the case of projection the suction muffler outlet portion in a direction of a center line.

Hermetic compressor

A Inlet pipe () communicating the space inside the hermetic enclosure with sound absorbing space () of inlet muffler () is provided so as to be inclined downward from inlet-pipe inlet () toward inlet-pipe outlet (). Outlet pipe () communicating sound absorbing space () with an inlet valve includes outlet-pipe inlet () and outlet-pipe outlet (). Inlet-pipe inlet () and outlet-pipe inlet () are formed at substantially same height. Herewith, introducing a refrigerant gas to outlet-pipe inlet () making efficient use of potential energy of the refrigerant improves the compression efficiency and stabilizes the performance of the compressor.

Growing community of inventors

Shiga, Japan

Kenji Kinjo