ROTARY PISTON TYPE COMPRESSOR AND REFRIGERATOR OR AIR CONDITIONER USING THIS COMPRESSOR

Title:

ROTARY PISTON TYPE COMPRESSOR AND REFRIGERATOR OR AIR CONDITIONER USING THIS COMPRESSOR

Document Type and Number:

Japanese Patent JP2003003967

Kind Code:

A

Abstract:

To provide a rotary piston type compressor having a shape for work at a low cost of the external peripheral surface of a piston of blade integral type.

This rotary piston type compressor, insertion fitting a piston 1 of shape integrally formed with a flat plate-shaped blade 4 in a cylinder part 2 into an eccentric part of a crankshaft 12 to store in a case with a motor part a compression mechanism part 20 making the piston 1 perform revolution relating to an internal peripheral surface 11a of a cylinder 11, is characterized by making a total or one part of an external peripheral surface 3 positioned in a suction chamber side in a range relative to a cutoff position of a suction port 14 from an intersection part of the flat plate-shaped blade 4 and the cylinder part 2 as an escape 6 of shape hollowed more than the external peripheral surface 3.

Inventors:

YAMANAKA TOSHIO
MAEDA YUKIO
ABE NOBUO
TATENO MINORU
HORIE TATSUO
KATO KAZUYA
NISHIOKA FUMITAKA

Application Number:

JP2001190592A

Publication Date:

January 08, 2003

Filing Date:

June 25, 2001

Export Citation:

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Assignee:

HITACHI LTD

International Classes:

F04C18/00; F04C18/32; F04C21/00; F25B31/02; (IPC1-7): F04C18/00; F04C21/00; F25B31/02

Attorney, Agent or Firm:

Sakuta Yasuo

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