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Locking device for dual capacity compressor

A technology of latch device and compressor, which is applied to parts of pumping devices for elastic fluids, liquid variable capacity machines, mechanical equipment, etc., can solve problems such as functional impact, length of connecting rods, etc., and achieve improvement Effects of function, length reduction, and durability improvement

Inactive Publication Date: 2007-10-24
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, in the prior art design, the latch (6) is located between the eccentric part (3) and the eccentric bushing (4), which makes the length of the connecting rod (5) have to be relatively elongated, thereby affecting its function

Method used

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  • Locking device for dual capacity compressor
  • Locking device for dual capacity compressor
  • Locking device for dual capacity compressor

Examples

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Comparison scheme
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Embodiment Construction

[0030] In order to further understand the content, characteristics and effects of the present invention, the following examples are given as examples and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0031] Fig. 3 is a cross-sectional view of the structure of the latch device of the double capacity compressor designed according to the present invention. As shown in the figure, a cylinder (52) is arranged on one side of the frame (50), and a piston (54) is arranged inside the cylinder (52), and the linear reciprocating motion of the piston is considered during setting. The frame (50) is located inside the airtight container of the compressor, and there are various other parts constituting the compressor inside.

[0032] The crankshaft (60) runs through the upper and lower sides of the frame (50). The crankshaft (60) is driven by the motor to rotate, and its upper end is provided with an eccentric portion (62). The eccentric portion (62)...

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PUM

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Abstract

The invention is about a double capacity compressor. In the invention, a friction surface is formed between the periphery of the crankshaft eccentric part and the inside of the eccentric shaft sleeve. A through hole mounted with eccentric part is positioned on the eccentric shaft sleeve a little bit deflect from the center. on the top end of the eccentric shaft sleeve, a latch is arranged preventing the eccentric shaft sleeve rotating randomly. The latch must be mounted with one end convex to outside of the eccentric shaft sleeve. The eccentric shaft sleeve is placed on the center, on the eccentric part, the big port of the connecting lever is linked, and the big port must be kept rotatable. On the big port, a hook capable of hanging the latch is arranged. On bottom end of the eccentric shaft sleeve, a latch pendant is arranged. The invention can make the oil supply more smoothly and reduce the relative length of the connecting lever.

Description

technical field [0001] The present invention belongs to reciprocating piston compressors, in particular to a latch device with double capacity compressors. Background technique [0002] The so-called double-capacity compressor refers to a reciprocating compressor, because the rotation direction of the crankshaft is different, and the distance between the piston connected to the crankshaft is changed by the action of the connecting rod, so the compression capacity is also different. This dual-capacity compressor is used in refrigerators and other equipment that utilizes a cold cycle. It can adjust the compression capacity according to the refrigeration load and improve the efficiency of the compressor. [0003] This dual capacity compressor is licensed under US Patent No. 4,236,874 and will be described below with reference to FIGS. 1 and 2 . As shown in the figure, an eccentric portion (3) deviated from the rotation center (1a) is provided on the crankshaft (1) which rotate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/02F04B53/14F04B35/04F16C3/28
Inventor 崔喆洛姜達守鐵基徐敏榮金碁株許俊洙
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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