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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 liquid accumulators, high production costs, and The main body needs to be connected by pipes; 3. The compressor with independent liquid storage takes up a lot of space, which is not conducive to the miniaturization of the whole machine

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

Embodiment 1

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

[0028] The two ends of the horizontally arranged casing 3 are sealed by the casing covers G1 and G2, and the interior is divided into two parts by the main bearing 6 (or cylinder 7 or other partitions), that is, the low-pressure chamber C1 under the suction pressure during operation and the low-pressure chamber C1 under the discharge pressure. The high-pressure chamber C2 of air pressure, the motor part composed of the rotor 4 and the stator 5 is arranged in the chamber C1, and the compression pump part composed of the cylinder 7, the crankshaft 12, the piston 8 and the main and auxiliary bearings 6, 16 is accommodated in the chamber C2 , the inner bottom of which 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 co...

Embodiment 2

[0029] Example 2: A single-cylinder horizontal compressor with an external suction pipe

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

Embodiment 3

[0031] Example 3: A single-cylinder vertical compressor with an external suction pipe

[0032] The two ends of the vertically arranged housing 3 are sealed by the housing covers G1 and G2, and the interior is divided into two parts by the partition main bearing 6, namely the low-pressure chamber C1 and the high-pressure chamber C2, which are in a vertical structure. Chamber C1 houses the motor, chamber C2 houses the compression pump part, oil sump 10 . The intake pipe 2 is arranged on the upper side of the casing 3 , and the exhaust pipe 20 is arranged on the lower side of the casing 3 . The suction pipe 14 is vertically arranged outside the casing, the upper end communicates with the chamber C1 , and the lower end communicates with the suction port 18 . The oil return hole 13 is arranged on the separator main bearing 6 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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