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Dual capacity compressor

A compressor and double-capacity technology, which is applied in the field of compressors, can solve problems such as the difficulty in realizing the precise movement of the eccentric cam and the inability to guarantee the operation reliability, so as to achieve the effect of improving the operation efficiency and ensuring the operation reliability

Inactive Publication Date: 2005-12-14
LG ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, since the precise movement of the pin through these holes from the eccentric member to the eccentric cam is difficult to achieve, operational reliability cannot be guaranteed.

Method used

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  • Dual capacity compressor
  • Dual capacity compressor
  • Dual capacity compressor

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Embodiment Construction

[0046] Reference will now be made in detail to the preferred embodiments of the present invention, several examples of which are illustrated in the accompanying drawings. In describing the embodiments of the present invention, the same components will be denoted by the same names and reference numerals, and their repeated descriptions will be omitted. The overall structure of the dual-capacity compressor described in the present invention will refer to Figure 4 to describe.

[0047] refer to Figure 4 , the dual-capacity compressor of the present invention includes: a power generation part 20, which is located at the lower part of the compressor, for generating and transmitting required power; a compression part 30, which is located above the power generation part 20, to use power to compress the working fluid . Also, in addition to these common parts, the dual capacity compressor includes a stroke changing part 40 connected between the power part 20 and the compressing pa...

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Abstract

The dual capacity compressor comprises a power generating section (20) having a reversible electric motor (21, 22) and a crankshaft (23) embedded in the electric motor (21, 23); a compression section (30), It has a cylinder (32), piston (31) and connecting rod (33); a crank pin (110) located on the upper part of the crankshaft (23), which is eccentric to the axis of the crankshaft; an eccentric sleeve (120), which The barrel is rotatably engaged with the crank pin (110) and the connecting rod (33) respectively; the key member (130) is used to rigidly fasten the eccentric sleeve (120) to the crank pin in all directions of rotation of the motor (110); and an eccentric block (200) arranged on the eccentric sleeve (120), the eccentric block is used to make the eccentric sleeve (120) rotate around the crank pin (110). Thereby preventing the relative movement between the components to maintain a constant eccentricity and allow the components to move smoothly.

Description

technical field [0001] The present invention relates to a compressor for compressing a working fluid such as refrigerant to a desired pressure, and more particularly, to a compressor whose compression capacity changes depending on the direction of rotation. Background technique [0002] A dual capacity compressor is a reciprocating compressor whose piston stroke and compression capacity vary with the direction of rotation of the electric motor and crankshaft by means of an eccentric sleeve rotatably coupled to the crankpin of the crankshaft barrel formed. Since the compression capacity of the dual-capacity compressor can be changed according to the required load, this type of compressor is widely used in equipment that requires compression of working fluid, especially in household appliances that operate in a refrigeration cycle, such as refrigerators , in order to improve the operating efficiency of the compressor. US Patent No. 4236874 discloses a general dual-capacity c...

Claims

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Application Information

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IPC IPC(8): F04B35/00F04B49/12
CPCF04B35/04F04B39/0005F04B39/0094F04B39/14F04B49/126F05B2260/30F16C3/28
Inventor 崔喆洛姜达洙卢铁基徐敏荣金碁株许俊洙
Owner LG ELECTRONICS INC
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