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A compressor

A compressor and rotor technology, applied in the field of reciprocating hermetic compressors

Inactive Publication Date: 2010-02-17
ARCELIK AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, said axial bearing carrying the vertical load has to be processed with precise tolerances for the magnets

Method used

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  • A compressor
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Embodiment Construction

[0030] The compressor (1) consists of: a housing (2), keeping the components inside; an electric motor, with a rotor (3) and a stator (4); a crankshaft (5), connected to the core of the rotor (3) and providing the transfer rotor ( 3) rotary motion; the cylinder block (6), located on the upper side of the rotor (3) and having a cylinder bore (D), wherein the piston runs; and an axial sliding bearing (7), located on the cylinder body (6), and provide support for the crankshaft (5) to the cylinder block (6) in the axial direction, thereby maintaining the cylinder block (6) to withstand the crankshaft (5) and the rotor (3) to which the crankshaft (5) is connected Weight and the vertical component of the forces generated during operation.

[0031] The compressor (1) of the invention comprises a rotor weight reduction device (9) having:

[0032] - two magnets (8, 108), located between the housing (2) and the underside of the rotor (3)-crankshaft (5) group, placed opposite each othe...

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PUM

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Abstract

The present invention relates to a compressor (1) comprising a casing (2) that holds the elements inside, an electric motor having a rotor (3) and a stator (4), and a cylinder block (6) that providesbearing of the crankshaft (5) axially by an axial sliding bearing (7), wherein the weight effect of the rotor (3) and the crankshaft (5) and the vertical components of forces created during operationare reduced, thus decreasing the frictional forces at the bearing (7).

Description

technical field [0001] The present invention relates to a reciprocating hermetic compressor in which mechanical losses due to friction of movable components are reduced. Background technique [0002] In a reciprocating hermetic compressor used in a cooling device, the weight of the rotor and the crankshaft and the forces generated in the vertical direction during operation are borne by axial bearings. Axial bearings are usually located between the crankshaft and the cylinder block, and oil in the compressor casing is conveyed to the axial bearings to reduce mechanical losses due to friction. With an insufficient oil film, dry friction is created in the axial bearings, especially at the initial start-up of the compressor, and compressor performance is degraded by the increased torque that the electric motor has to counteract. Metal-to-metal wear in the axial bearings is increased by the dry friction that occurs at the initial start-up of the compressor, and compressors expec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00
CPCF04B39/0027F16C39/063F04B35/04F04B39/0094
Inventor H·克皮西G·艾巴斯西尔彭利T·库图卢斯
Owner ARCELIK AS
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