KR20140086598A - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- KR20140086598A KR20140086598A KR1020120157288A KR20120157288A KR20140086598A KR 20140086598 A KR20140086598 A KR 20140086598A KR 1020120157288 A KR1020120157288 A KR 1020120157288A KR 20120157288 A KR20120157288 A KR 20120157288A KR 20140086598 A KR20140086598 A KR 20140086598A
- Authority
- KR
- South Korea
- Prior art keywords
- compression space
- cylinder
- suction
- compressor
- bearing
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0028—Internal leakage control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
Abstract
Description
BACKGROUND OF THE
Generally, a compressor is applied to a vapor compression type refrigeration cycle such as a refrigerator or an air conditioner (hereinafter abbreviated as a refrigeration cycle). The refrigerant compressor has been introduced with a constant-speed compressor driven at a constant speed or an inverter-type compressor controlled in rotation speed.
The compressor is generally referred to as a closed compressor in the case where the compression section operated by the transmission section which is a motorized section and the compression section operated by the transmission section are provided together in the internal space of the closed casing and the case where the transmission section is separately provided outside the casing is referred to as an open compressor have. Most of the refrigeration appliances for home use or commercial use are hermetically sealed compressors.
A hermetic compressor can be classified into a single-type hermetic compressor and a double-hermetic type compressor according to the number of cylinders. In the hermetically sealed compressor, one cylinder having one compression space is provided inside the casing, while the double-hermetically sealed compressor has a plurality of cylinders having one compression space inside the casing.
Compressed air compressors can be divided into 1 suction-2 discharge system and 1 suction-1 discharge system depending on the method of compressing the refrigerant. In the one suction-1 discharge mode, the accumulator is connected to the first cylinder through the primary suction flow path, and the second cylinder is connected to the discharge side of the first cylinder connected to the accumulator through the secondary suction flow path, And then discharged into the inner space of the casing. On the other hand, the one suction-2 discharge system is a system in which a plurality of cylinders are branched and connected to one suction pipe, and refrigerant is respectively compressed in a plurality of cylinders and discharged into the inner space of the casing.
1 is a longitudinal sectional view showing a rotary compressor of a conventional 1 suction-2 discharge type. As shown in the figure, the rotary compressor of the conventional one-suction-two-discharge type has a
The
The
The first
When the power source is applied to the
However, in the above-described conventional 1-intake-2 discharge type rotary compressor, the first
In view of this, conventionally, as disclosed in Korean Patent No. 10-0812934, a 1-cylinder-2 compression chamber type rotary compressor having two compression spaces in one cylinder has been introduced. FIG. 2 is a longitudinal sectional view showing one embodiment of a conventional 1-cylinder-2 compression chamber rotary compressor, and FIG. 3 is a transverse sectional view showing a cylinder and a piston in a 1-cylinder-2 compression chamber type compressor according to FIG.
2, a conventional 1-cylinder-2 compression chamber type rotary compressor (hereinafter abbreviated as a 1-cylinder-2 compression chamber compressor) has a first compression space V1 And a second compression space V2 are formed. The
A
3, the
The inner diameter of the
The
In the drawing,
In the conventional one-cylinder-two compression seal compressor as described above, the
Thereby, the first compression space (V1) and the second compression space (V2) are disposed adjacent to each other on the same plane, and the moment and the friction loss can be reduced. In addition, since the
However, in the conventional one-cylinder-two compression seal compressor as described above, since the
In order to change the volume of the
In the conventional one-cylinder-two compression chamber compressor, one side surface in the axial direction of the
It is an object of the present invention to provide a compressor capable of reducing the refrigerant leakage by reducing the weight of the rotating body and having a small power loss compared to the same cooling power and a small bearing area.
Another object of the present invention is to provide a compressor which can easily expand and change the volume of a cylinder.
Another object of the present invention is to provide a compressor capable of increasing the degree of freedom in designing the suction and discharge passages and achieving the optimum efficiency.
In order to accomplish the object of the present invention, there is provided an air conditioner comprising: a casing to which a suction pipe is connected; A crankshaft for transmitting a rotational force of a driving portion provided in the casing; A plurality of bearing plates for supporting the crankshaft; A cylinder coupled between the bearing plates and having an outer cylinder portion and an inner cylinder portion connected to a vane portion to form a compression space; And a rolling piston slidably coupled to the vane portion between the outer cylinder portion and the inner cylinder portion and separating the compression space into an outer compression space and an inner compression space while pivotally moving by the crankshaft, At least one bearing plate among the plurality of bearing plates is provided with a suction port for connecting the suction pipe.
The rotary compressor of the one-cylinder-two compression chamber type according to the present invention is characterized in that a cylinder having an outer cylinder portion and an inner cylinder portion is fixed and the rolling piston is swung in the cylinder, It is possible to reduce the possibility that the refrigerant leaks due to a small power loss compared to the same cooling power and a small bearing area.
In addition, since the cylinder is fixed and the rolling piston is pivotally moved, a protruding portion is formed on one side of the outer circumferential surface of the outer cylinder portion, so that a clearance space is formed between the inner circumferential surface of the casing and the outer circumferential surface of the cylinder, The diameter can be enlarged and the volume of the cylinder can easily be enlarged and changed.
In addition, the suction pipe is directly connected to the suction port to increase the degree of freedom in designing the suction passage and reduce the suction loss, and the suction port is formed in the upper bearing or the lower bearing to increase the strength of the cylinder and prevent deformation .
1 is a longitudinal sectional view showing a rotary compressor of the conventional 1 suction-2 discharge system,
2 is a vertical cross-sectional view showing one embodiment of a conventional 1-cylinder-2 compression chamber type rotary compressor,
Fig. 3 is a cross-sectional view taken along the line "II" in Fig. 2,
4 is a longitudinal sectional view showing a rotary compressor of a one-cylinder-two compression chamber type according to the present invention,
FIG. 5 is a perspective view of the compression unit of FIG. 4,
Fig. 6 is a sectional view taken along line II-II in Fig. 4,
7 is a cross-sectional view taken along the line "III-III" in Fig. 6,
FIGS. 8 and 9 are plan views showing embodiments of the suction port formed in the lower bearing in the compressor of FIG. 7,
FIG. 10 is a cross-sectional view showing the compression process of the outer compression space and the inner compression space in FIG. 4,
11 is a longitudinal sectional view showing another embodiment of the compressor according to Fig.
Hereinafter, a compressor according to the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings.
FIG. 4 is a longitudinal sectional view showing a rotary compressor of a one-cylinder-two compression chamber type according to the present invention, FIG. 5 is a perspective view showing decompression of a compression part in the compressor of FIG. 7 is a cross-sectional view taken along line III-III in Fig. 6, and is a vertical sectional view showing the compressed portion, and Figs. 8 and 9 are plan views showing embodiments of the suction port formed in the lower bearing.
As shown in the drawings, the rotary compressor of the one-cylinder-two compression chamber type according to the embodiment of the present invention is provided with a
The
The
The
The
The
The
The
The
The inner diameter D1 of the
Here, the
The
The
As shown in FIG. 8, when the
8 and 9, the
Meanwhile, although not shown in the drawing, the suction port may be formed in the upper bearing. In this case, the shape of the suction port, the structure related thereto, and the operation and effect thereof are similar to those in the case where the suction port is formed in the lower bearing, so a detailed description thereof will be omitted.
5 and 6, the
4, the
The
The
The height H2 of the
The
5 to 7, the
A stepped
5 to 7, the rolling
The outer diameter of the
The
The
A
The
In the drawing,
The rotary compressor of the 1 cylinder-2 compression chamber type according to the present embodiment as described above is operated as follows
When the
10 (a) and 10 (b), when the
10 (c) and 10 (d), when the
In the rotary compressor of the 1 cylinder-2 compression chamber type according to the present embodiment as described above, since the
In this embodiment, the
Since the suction port is formed in the
Meanwhile, another embodiment of the rotary compressor of the one-cylinder-two compression chamber type according to the present invention is as follows.
That is, in the above-described embodiment, the suction port is formed in the upper bearing or the lower bearing and the suction pipe is directly connected to the suction port. However, in this embodiment, the first suction port and the second suction port are formed in the upper bearing and the lower bearing, respectively .
The
In the rotary compressor of the one-cylinder-two compression chamber type according to the present embodiment, the refrigerant is supplied to the outer compression space V1 through the
Although not shown in the drawing, a refrigerant control valve is provided at a point where the first suction pipe and the second suction pipe are connected to each other, so that the supply path of the refrigerant can be changed as needed, thereby controlling the cooling power of the compressor. For example, in the case of power operation, the refrigerant control valve can be opened so that both refrigerant is supplied to the outer compression space and the inner compression space. However, only the outer compression space is opened in the first saving mode and only the inner compression space is opened in the second saving mode The refrigerant is supplied only to the selected compression space, so that the cooling power can be lowered compared with the power mode.
1: casing 2:
23: crank
100: compression section 110: upper bearing
112a: First discharge port 120: Lower bearing
122a: second outlet 123: inlet
123a: inlet of
123c: guide surface of the
130: cylinder 131: outer cylinder part
132: Inner cylinder part 133: Vane part
40: Rolling piston 141: Piston part
142: drive transmission portion V1, V2: outer side, inner compression space
Claims (7)
A crankshaft for transmitting a rotational force of a driving portion provided in the casing;
A plurality of bearing plates for supporting the crankshaft;
A cylinder fixedly coupled between the bearing plates and connected to the outer cylinder portion and the inner cylinder portion by a vane portion to form a compression space; And
And a rolling piston slidably coupled to the vane portion between the outer cylinder portion and the inner cylinder portion and separating the compression space into an outer compression space and an inner compression space while pivotally moving by the crankshaft,
Wherein at least one bearing plate of the plurality of bearing platters has a suction port connected to the suction pipe.
Wherein the suction port is formed as a single passage with an outlet communicating with the outer compression space and the inner compression space.
Wherein the suction port is formed in a different passage from the outer compression space and the outlet communicating with the inner compression space.
Wherein each of the plurality of bearing plates is provided with a suction port, and each of the suction ports is independently communicated with the outer compression space and the inner compression space.
A suction pipe is connected to each of the suction ports, and a valve is provided to control the refrigerant sucked into each of the suction pipes.
The rolling piston may include:
A piston portion formed in an annular shape and disposed between the outer cylinder portion and the inner cylinder portion; And
And a drive transmitting portion extending from the piston portion in a plate shape and coupled to an eccentric portion of the crankshaft.
In the vane portion,
A first vane portion connected to an inner circumferential surface of the outer cylinder portion; And
And a second vane portion connected to an outer circumferential surface of the inner cylinder portion,
And the height of the first vane portion is different from the height of the second vane portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120157288A KR20140086598A (en) | 2012-12-28 | 2012-12-28 | Compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120157288A KR20140086598A (en) | 2012-12-28 | 2012-12-28 | Compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140086598A true KR20140086598A (en) | 2014-07-08 |
Family
ID=51735841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120157288A KR20140086598A (en) | 2012-12-28 | 2012-12-28 | Compressor |
Country Status (1)
Country | Link |
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KR (1) | KR20140086598A (en) |
-
2012
- 2012-12-28 KR KR1020120157288A patent/KR20140086598A/en not_active Application Discontinuation
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