Connecting rod-piston mounting arrangement for reciprocating compressor of small refrigeration systems

A technology of refrigeration system and assembly structure, applied in mechanical equipment, machine/engine, liquid variable capacity machinery, etc., can solve the problems of wear and tear, extremely difficult connection between the sphere and the end of the connecting rod in a high-quality and reliable way, etc.

Inactive Publication Date: 2003-07-02
EMPRESA BRASILEIRA DE COMPRESSORES SA (EMBRACO)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantages of this solution are that it is extremely difficult to engage the ball with the end of the connecting rod in a high-quality and reliable manner, and it causes high localized wear during compressor operation

Method used

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  • Connecting rod-piston mounting arrangement for reciprocating compressor of small refrigeration systems
  • Connecting rod-piston mounting arrangement for reciprocating compressor of small refrigeration systems
  • Connecting rod-piston mounting arrangement for reciprocating compressor of small refrigeration systems

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Embodiment Construction

[0014] The type of the connecting rod-piston structure of the present invention working in the reciprocating compressor of the small refrigeration system will be described below.

[0015] As shown in Figure 1, the reciprocating compressor of the motor-compressor assembly usually installed in a closed housing includes: a base 1 on which a stator 2 of an electric motor is installed and a bearing 3 supporting a crankshaft 4 is installed The rotor 5 of the motor is mounted on the lower part of the crankshaft, and an eccentric part 6 is provided on the upper end of the crankshaft.

[0016] The base body 1 also holds a cylinder 7 inside which houses a piston 10 traveling in a direction perpendicular to the axis of the eccentric 6 .

[0017] The connection between the piston 10 and the crankshaft 4 is achieved by articulated connection to the piston 10 of a connecting rod 20 with a rod 21 having an end 22 , the other end of which is mounted to the eccentric 6 , for example in a conve...

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Abstract

A connecting rod-piston mounting arrangement for a reciprocating compressor of small refrigeration systems, in which one of the parts defined by the piston (10) and the end (22) of the connecting rod (20) adjacent the said piston (10) carries a first spherical seat (11) and a spherical annular seat (12), the other of said parts incorporating a second spherical seat (23) turned to the first spherical seat (11) and a spherical annular surface (24) seated against the spherical annular seat (12), said first and second spherical seats (11, 23) being seated onto respective opposite spherical surface portions (31, 32) of a ball joint element (30) provided between the piston (10) and the connecting rod (20).

Description

technical field [0001] The present invention relates to a connecting rod-piston assembly structure used in reciprocating compressors of small refrigeration systems such as refrigerators, refrigerators, nozzle type drinking water taps and the like. Background technique [0002] Reciprocating compressors known in the art for use in refrigeration systems have a connecting rod, one side of which is mounted on an eccentric portion of a crankshaft pivotally connected to the cylinder, and the other side of the connecting rod is connected to the Reciprocating piston connection perpendicular to the axis of the eccentric. [0003] Due to the small size of the components for installing the connecting rod-eccentric pin assembly and the narrow space provided, different optional connecting rod structures have been proposed, the purpose of which is to facilitate the installation of this assembly into the compressor. These optional solutions For example two connecting rods are used, since ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00F04B39/14
CPCF04B39/0005F04B39/14
Inventor 塞尔希奥·路易斯·马加霍托
Owner EMPRESA BRASILEIRA DE COMPRESSORES SA (EMBRACO)
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