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Double-cylinder compressor

A dual-cylinder compressor and cylinder technology, which is applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of increasing, increasing the mechanical friction loss of the eccentric part, increasing the lateral leakage loss, etc., and achieves reliability. Good, excellent performance, low oil yield

Pending Publication Date: 2019-07-02
SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The displacement of the compressor is proportional to the height of the cylinder, the inner diameter of the cylinder, and the eccentricity of the crankshaft. Increasing the height of the cylinder will increase the loss of lateral leakage. Increasing the inner diameter of the cylinder will be affected by the inner diameter D of the compressor shell. Large mechanical friction loss

Method used

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Examples

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Embodiment Construction

[0043] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0044] figure 1 It is a cross-sectional view of the twin-cylinder compressor of the present invention. figure 2 yes figure 1 Partial enlarged view in . Such as figure 1 and 2 As shown, the double-cylinder compressor of the present invention includes: a housing 1 , a piston 2 , a crankshaft 3 , a cylinder 4 , a motor 5 and a liquid storage tank 6 . The motor 5 and the two cylinders 4 are accommodated in the casing 1 ...

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Abstract

The invention provides a double-cylinder compressor. The double-cylinder compressor comprises a shell, a motor, two air cylinders, two pistons and a crankshaft, wherein the motor and the two air cylinders are contained in the shell, the two pistons can be arranged in the two air cylinders in a rotating mode correspondingly, the crankshaft is provided with two eccentric parts and transmits the rotating force of the motor to the two pistons, and the two eccentric parts correspondingly drive the two pistons to rotate in the corresponding air cylinders so as to compress a refrigerant. According tothe double-cylinder compressor, the height H of at least one air cylinder, the inner diameter F of each air cylinder and the inner diameter D of a compressor shell meet the condition that H is greater than 0.390F and is less than or equal to 0.215D, and therefore the double-cylinder compressor can give consideration to excellent performance, good reliability and low oil yield.

Description

technical field [0001] The invention relates to the field of refrigeration equipment, in particular to a double-cylinder rotary compressor with large displacement and small shell diameter. Background technique [0002] The compressor is the core component of the refrigeration system. The performance of the compressor determines the capacity of the refrigeration system. The most direct and effective way to improve the efficiency of the refrigeration system is to improve the efficiency of the compressor. At the same time, the energy consumption of the system is significantly reduced with the improvement of the compressor efficiency. [0003] Compressor efficiency depends on its displacement V. The higher the displacement V, the higher the compressor efficiency. The displacement V calculation formula of the rotary twin-cylinder compressor is: V=2×π×H×E×(F-E), where H is the height of the compressor cylinder, E is the eccentricity of the compressor crankshaft, and F is the inner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C23/00F04C23/02F04C29/00
CPCF04C23/001F04C23/02F04C29/00F04C2250/30F04C2240/30
Inventor 陈艳春陆捷
Owner SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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