Rotation-type compressor with housing low pressure, control mode of coolant and oil return and applications thereof

A rotary compressor, compressor technology, applied in the direction of rotary piston machinery, irreversible cycle compressors, compressors, etc., can solve problems such as non-compliance with high-pressure safety standards, and achieve the effect of a wide range of applications

Active Publication Date: 2008-04-09
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the internal pressure of the shell of the rotary compressor is still on the high pressure side, then, in principle, the amount of refrigerant enclosed will increase, and for strong flammable refrigerants, the standard fo...

Method used

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  • Rotation-type compressor with housing low pressure, control mode of coolant and oil return and applications thereof
  • Rotation-type compressor with housing low pressure, control mode of coolant and oil return and applications thereof
  • Rotation-type compressor with housing low pressure, control mode of coolant and oil return and applications thereof

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] In the figure: 1 is the compressor, 2 is the exhaust pipe, 3 is the exhaust muffler, 4 is the oil separator, 5 is the condenser, 6 is the expansion valve, 7 is the evaporator, 8 is the low pressure circuit, and 9 is the shunt pipe , 10 is a bifurcated circuit, 11 is a suction pipe, 12 is an exhaust hole, 13 is an exhaust muffler chamber, 14 is an oil injection pipe, 20 is a shell, 21 is a compression assembly, 22 is a motor, 23 is a cylinder, 24 is 25 is the lower bearing, 26 is the eccentric crankshaft, 27 is the motor rotor, 28 is the motor stator, 31 is the first suction hole, 32 is the second suction hole, 34 is the third suction hole, 35 is the suction muffler, 36 is the main bearing, 37 is the ring gap, 38 is the end ring, 39 is the lower circular plate, 40 is the spring tube, 41 is the upper circular plate, 42.1 is the upper motor coil, 42...

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Abstract

A shell low-pressure rotary compressor and a control type and application for refrigerant and oil return of the compressor comprise a compression component and a motor component arranged in the shell. The compression component comprises one and more cylinders, pistons arranged in the cylinders, sliding pieces arranged in sliding piece trough of the cylinder, an eccentric crankshaft driving the piston and an upper bearing and a lower bearing supporting the eccentric crankshaft; the motor component comprises a motor rotor, and a motor stator; the shell is provided with a refrigerant diffluence device which is arranged on top or side surface of the shell; the refrigerant diffluence device comprises a diffluence pipe which is internally provided with a spring pipe which adjusts the diffluence rate. An air suction muffler is arranged between the motor component and the compression component; a radial spacing is arranged between the air suction muffler and a main bearing, and/or the motor rotor or the eccentric crankshaft or the upper bearing which is provided with a round plate. The invention has the advantages of high safety degree, low manufacture cost, smart operation, good lubrication performance, little oil consumption, high compression efficiency, and long service life.

Description

technical field [0001] The invention relates to a rotary compressor, in particular to a low-pressure rotary compressor with a casing, and a control method and application of refrigerant and oil return thereof. Background technique [0002] 100% of the common rotary compressors have the internal pressure of the shell as the high pressure side. The main reasons are: [0003] 1) When the internal pressure of the housing is on the high pressure side, the lubrication of the sliding vane and the piston is very easy due to the pressure difference between the internal pressure of the housing and the internal pressure of the cylinder, which is beneficial in terms of lubrication; 2) In order to press the front end of the sliding vane tightly When the piston is compressed and started, it is necessary to set the back pressure of the slide plate to a high pressure, which is the necessity of the working principle; 3) The lubricating oil discharged from the compression chamber of the cylin...

Claims

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Application Information

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IPC IPC(8): F04C18/356F04C29/06F04C29/12F04C29/02F04C29/00C09K5/04
CPCF04C29/04F04C29/068F04C18/3564F04C29/065F25B1/04F04C29/128
Inventor 邵海波
Owner GUANGDONG MEIZHI COMPRESSOR
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