Rolling piston type compressor with no reservoir

A rolling piston type and compressor technology, which is applied in the direction of rotary piston type machinery, compressors, irreversible cycle compressors, etc., can solve the problems of shortening the life of the motor, taking up a large space for the compressor, and high exhaust temperature, so as to reduce production cost, reduced footprint, guaranteed reliability and high efficiency

Inactive Publication Date: 2007-07-25
SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are three major disadvantages in compressors with independent liquid accumulators: 1. High exhaust temperature, insufficient cooling of the motor, affecting motor performance, and shortening motor life; 2. Independent l

Method used

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  • Rolling piston type compressor with no reservoir
  • Rolling piston type compressor with no reservoir
  • Rolling piston type compressor with no reservoir

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1: A single-cylinder horizontal compressor is built in the suction pipe (as shown in Figure 1)

[0028] The two ends of the horizontally arranged shell 3 are sealed by shell covers G1 and G2, and the inside is divided into two parts by the main bearing 6 (or cylinder 7 or other partitions), namely, the low-pressure chamber C1 at suction pressure and the discharge chamber C1 at work. The high pressure chamber C2 of air pressure, the cavity C1 is provided with the motor part composed of the rotor 4 and the stator 5, and the chamber C2 contains the compression pump part composed of the cylinder 7, the crankshaft 12, the piston 8 and the main and auxiliary bearings 6, 16 , Its inner bottom is a lubricating oil pool 10, and the housing 3 is provided with an intake pipe 2 and an exhaust pipe 20 communicating with the system. The intake pipe 2 with the filter screen 1 is installed on the shell cover G1 (or the shell 3, as shown by the dotted line in Figure 1), and the exha...

Example Embodiment

[0029] Example 2: Single-cylinder horizontal compressor with external suction pipe

[0030] The suction pipe 14 is placed outside, and an oil return hole 13 is opened at the position of the suction pipe 14 close to the bottom of the casing 1. The other structure is the same as that of the first embodiment, as shown in FIG. 2.

Example Embodiment

[0031] Example 3: Single-cylinder vertical compressor with external suction pipe

[0032] The two ends of the vertically arranged shell 3 are sealed by shell covers G1 and G2, and the inside is divided into two parts, namely the low pressure chamber C1 and the high pressure chamber C2, by the main bearing 6 of the separator, which is a vertical structure. The cavity C1 contains the motor, and the cavity C2 contains the compression pump part and the oil pool 10. The intake pipe 2 is provided on the upper side of the housing 3 and the exhaust pipe 20 is provided on the lower side of the housing 3. The suction pipe 14 is vertically arranged on the outside of the casing, the upper end is communicated with the cavity C1, and the lower end is communicated with the suction port 18. The oil return hole 13 is arranged on the main bearing 6 of the separator and communicates with the suction port 18 on the cylinder 7. As shown in Figure 3.

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Abstract

The present invention relates to a rolling piston type compressor having no reservoir. It is characterized by that it includes a sealed shell body, in said sealed shell body interior a motor portion and a compression pump portion are contained, its interior bottom portion is equipped with a lubricating oil oil-tank, the sealed cavity of said shell body is separated into a low-pressure cavity C1 and a high-pressure cavity C2, and between the cavity C1 and cavity C2 the air is not leaked; the described air-feeding pipe and motor portion are positioned in low-pressure cavity C1, and the described air-discharging pipe, compression pump portion and oil tank are positioned in high-pressure cavity C2; between two cavities an air-sucking pipe as refrigerant channel is set, the upper end of said air-sucking pipe is opened in low-pressure cavity C1, its lower end is communicated with air-sucking hole of cylinder; the bottom portion of said low-pressure cavity C1 is equipped with an oil-returning hole communicated with cylinder air-sucking hole. Said invention can be used in single-cylinder or double-cylinder compressor.

Description

technical field [0001] The invention relates to an air conditioner compressor for refrigeration, in particular to a rolling piston compressor. Background technique [0002] Generally, the rolling piston compressor mainly includes two parts: the main body of the compressor and the liquid accumulator. The main body of the compressor is mainly composed of a casing, a motor, a pump body, suction and exhaust passages, and an oil pool. The motor part composed of rotor and stator and the pump body part composed of cylinder, piston, main and auxiliary bearings, crankshaft, etc.; the cylindrical liquid accumulator is generally close to the main body of the compressor, connected with the main body by pipes, and the liquid accumulator in the liquid accumulator The refrigerant enters the cylinder through the suction port on the main body, is discharged into the shell after being compressed by the cylinder, and finally is discharged from the shell through the exhaust pipe and enters the...

Claims

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Application Information

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IPC IPC(8): F04C18/00F04C29/02F25B1/04
Inventor 高小军刘春慧周易唐亚兵
Owner SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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