CN110925203A - Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor - Google Patents
Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor Download PDFInfo
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- CN110925203A CN110925203A CN201911300538.3A CN201911300538A CN110925203A CN 110925203 A CN110925203 A CN 110925203A CN 201911300538 A CN201911300538 A CN 201911300538A CN 110925203 A CN110925203 A CN 110925203A
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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
- 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
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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
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention belongs to the technical field of compressors, and particularly relates to a rotary double-cylinder air compression mechanism and a double-cylinder single-suction air compressor, wherein the rotary double-cylinder air compression mechanism comprises a first air cylinder, a middle partition plate and a second air cylinder which are sequentially arranged along a first direction, the first air cylinder is provided with a first compression cavity, the periphery of the first air cylinder is provided with an air suction hole which is formed along a second direction, the wall of the first compression cavity is provided with an air inlet hole which is formed along the second direction and communicated with the air suction hole, the side surface of the first air cylinder, which is attached to the middle partition plate, is provided with an air outlet hole communicated with the air inlet hole, the hole length of the air outlet hole in the second direction is smaller than the hole length of the air outlet hole in the direction perpendicular to the second direction on a cross section perpendicular to the first direction, and the. The invention improves the splicing reliability of the conical pipe at the air inlet so as to avoid the leakage of compressed gas and ensure the mechanical strength of the first cylinder in the circumferential direction.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a rotary double-cylinder air compression mechanism and a double-cylinder single-suction air compressor.
Background
In the correlation technique, the double-cylinder single-suction-gas compressor is provided with two cylinders, suction holes are arranged on the two cylinders generally, and two suction pipes are arranged on the liquid storage device and are communicated with the two cylinders respectively. In order to reduce the cost, the cost can be reduced by reducing the air suction holes, and the air suction holes are arranged on the middle clapboard. However, it is known that in the double cylinder double suction structure, the thickness of the partition plate is much smaller than that of the cylinder, and therefore, if the suction hole is provided on the partition plate, the partition plate must be thickened. This results in a limited reduction in cost and, more importantly, in a higher overall height of the compression structure, which variation deteriorates the reliability of the compression structure.
Therefore, in order to improve the above situation, as shown in fig. 1 and 2, a two-cylinder single-suction air hole 101 ' may be provided on the air cylinder 100 ', specifically, in the two-cylinder single-suction structure, the two air cylinders are a first air cylinder and a second air cylinder, respectively, and the first air cylinder 100 ' is provided with an air inlet hole 102 ' communicated to the air suction hole 101 '. Thus, the thickening of the middle clapboard is avoided, and the problem is well solved. At the same time, the hole leading to the second cylinder is the outlet hole 103'.
Typically, during assembly, the reservoir is connected to the compression mechanism by a tapered tube. The minimum requirement of the depth of the sealed conical pipe inserted into the air suction hole 101 'is C, for the first cylinder, the depth of the conical pipe inserted into the air suction hole 101' is reduced due to the arrangement of the air outlet hole 103 ', so that the insertion reliability of the conical pipe at the air inlet hole is reduced, and the conical pipe at the air suction hole 101' is easy to loosen, so that gas is easy to leak; meanwhile, the mechanical strength of the cylinder in the circumferential direction is insufficient.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a rotary type double-cylinder air compression mechanism, which aims to solve the problems of poor connection reliability at an air inlet of a cylinder communicated with a liquid storage device in a double-cylinder single-suction air compressor and insufficient mechanical strength of the cylinder in the circumferential direction.
The invention is realized by the following steps:
the utility model provides a rotation type double-cylinder air compression mechanism, including the first cylinder, median septum and the second cylinder that set gradually along the first direction, first compression chamber is seted up to first cylinder, first cylinder sets up the suction hole of seting up along the second direction in its periphery, first compression chamber sets up along the second direction in its chamber wall and sets up the inlet port that communicates with the suction hole, first cylinder sets up the venthole that communicates to the inlet port in the side of laminating with the median septum, on the cross-section of perpendicular to first direction, the hole length of venthole in the second direction is less than the hole length of venthole in the perpendicular to second direction, the median septum sets up the air guide hole that link up the setting, the second compression chamber has been seted up to the second cylinder, the air guide hole is used for communicating the venthole to second compression chamber, the second direction is perpendicular with the first direction.
Optionally, a ratio of a hole length of the outlet hole in the second direction to a hole length of the outlet hole perpendicular to the second direction is 1.1-1.4.
Optionally, the opening direction of the air outlet is a third direction, the straight line with the starting point being the center point of the air outlet and arranged along the third direction and departing from the direction of the middle partition plate is a first straight line, the straight line with the starting point being the center point of the air outlet and arranged along the second direction and departing from the first compression cavity is a second straight line, and an angle formed between the first straight line and the second straight line is an acute angle.
Optionally, an angle formed between a line arranged in the third direction and disposed away from the middle diaphragm and a line arranged in the second direction and disposed away from the first compression chamber is 25-45 °.
Optionally, the hole shape of the air outlet is elliptical; or the air outlet is in a runway shape consisting of two oppositely arranged and parallel straight line sections and an arc line section connected between the two end parts of the two straight line sections, and the distance between the two straight line sections is smaller than the maximum distance between the two arc line sections.
Optionally, the air guide hole is a through hole structure arranged in the first direction.
Alternatively, the axis of the air-guide hole is inclined from the periphery of the partition plate toward the center in the direction in which the first cylinder is directed toward the second cylinder.
Optionally, the second cylinder is provided with an inclined through hole, one end of the inclined through hole is communicated with the air guide hole, the other end of the inclined through hole is communicated with the second compression cavity, and the axis of the inclined through hole is parallel to the axis of the air guide hole; or the included angle between the axis of the inclined through hole and the axis of the second cylinder is larger than the included angle between the axis of the air guide hole and the axis of the second cylinder.
Optionally, the first compression cavity is a through hole structure arranged in a first direction in a penetrating manner; the second compression cavity is a through hole structure which is arranged in a penetrating way along the first direction.
The invention also provides a double-cylinder single-suction air compressor which comprises the rotary double-cylinder air compression mechanism.
This rotation type double-cylinder air compressing mechanism establishes the single inspiratory suction hole of double-cylinder on the cylinder, thickening median septum has been avoided, meanwhile, the hole length of venthole in the second direction is less than the hole length of venthole in the perpendicular to second direction, under the condition the same with the hole shape area of prior art venthole, can increase n + t's size, in concrete setting, relative prior art's structure, can ensure n and be greater than or equal to C, can also ensure t and be greater than or equal to d/10, wherein, ensure n and be greater than or equal to C, can improve the conical tube and locate the grafting reliability in the venthole, prevent that the conical tube is not hard up in the venthole, thereby avoid compressed gas to reveal, and ensure t and be greater than or equal to d/10, then ensured first cylinder mechanical strength in circumference.
Therefore, the structure is simple, the manufacturing cost is not increased, meanwhile, the inserting reliability of the air inlet pipe at the air suction hole is improved in the rotary type double-cylinder air compression mechanism, so that the leakage of compressed air is avoided, and the mechanical strength of the first cylinder in the circumferential direction is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a bottom view of a cylinder with a suction hole in a rotary double-cylinder air compressing mechanism in the prior art;
FIG. 2 is a cross-sectional view taken along line AA in FIG. 1;
FIG. 3 is a cross-sectional view of one embodiment of a rotary dual cylinder air compression mechanism provided by the present invention;
FIG. 4 is a bottom view of the first cylinder of another embodiment of the rotary double cylinder air compression mechanism provided by the present invention;
fig. 5 is a cross-sectional view in the direction BB in fig. 4.
Figures 1, 2 are numbered as follows:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100＇ | Cylinder | ||
| 101＇ | Air suction hole | 102＇ | Air intake |
| 103＇ | Air outlet |
Figures 2 to 5 are numbered as follows:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
||
| 110 | |
||
| 101 | |
102 | |
| 103 | |
||
| 200 | |
201 | |
| 300 | The |
||
| 310 | |
320 | Oblique through hole |
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a rotary double-cylinder air compression mechanism.
Referring to fig. 3 to 4, the rotary double-cylinder air compressing mechanism includes a first cylinder 100, a middle partition 200 and a second cylinder 300 sequentially arranged along a first direction.
It should be noted that, during the specific use process of the dual-cylinder air-compression pump body, the dual-cylinder air-compression pump body further includes other structural components irrelevant to the invention of the present application, such as a first bearing, a first crankshaft engaged with the first bearing, a first piston connected with the first crankshaft and located in the first cylinder 100, a second bearing, a second crankshaft engaged with the second bearing, and a second piston connected with the second crankshaft and located in the second cylinder 300, etc., which are not listed here, and these structures are not shown in the drawings.
It should be noted that the first direction may be a top-down direction, at this time, the first cylinder 100, the middle partition plate 200, and the second cylinder 300 are sequentially arranged from top to bottom, at this time, the dual-cylinder air compression pump body is vertical, the first direction may also be a left-to-right direction, the first cylinder 100, the middle partition plate 200, and the second cylinder 300 are sequentially arranged from left to right, and at this time, the dual-cylinder air compression pump body is horizontal.
The first cylinder 100 is provided with a first compression cavity 110, the first cylinder 100 is provided with a suction hole 101 formed along the second direction at the periphery thereof, and the suction hole 101 is used for inserting an air inlet pipe communicated with the liquid storage device, so that the air passing through the liquid storage device can enter the rotary double-cylinder air compression mechanism through the suction hole 101. The first compression cavity 110 has an air inlet 102 formed on a cavity wall thereof along the second direction and communicated with the air suction hole 101, and the first cylinder 100 has an air outlet 103 formed on a side surface thereof attached to the middle partition plate 200 and communicated with the air inlet 102, such that air sucked into the air suction hole 101 flows into the air inlet 102 and the air outlet 103, respectively, wherein the air flowing into the air inlet 102 enters the first compression cavity 110, and the air flowing into the air outlet 103 enters the second cylinder 300. Wherein the second direction is perpendicular to the first direction.
In the cross section perpendicular to the first direction, the hole length of the air outlet hole 103 in the second direction is smaller than the hole length of the air outlet hole 103 in the second direction, specifically referring to fig. 2, in the prior art, the shape of the air outlet hole 103 'at the end face of the first cylinder 100' is an ellipse, L1 is the length of the major axis of the ellipse, and L2 is the length of the minor axis of the ellipse. If L1 is too large, n is not equal to or larger than C, so that the connection strength between the first cylinder and the external air inlet pipe is insufficient; or t is not more than d/10, and the mechanical strength of the first cylinder 100 in the circumferential direction is insufficient; or neither of them will suffice.
Wherein C is the minimum requirement for inserting the sealed taper tube into the air suction hole 101 ', n is the closest distance from the air suction hole 101' to the outer wall surface of the first cylinder 100 ', t is the closest distance from the air suction hole 101' to the inner wall surface of the first cylinder 100 ', and d is the aperture of the air inlet hole 102'.
Based on the setting of the structure of the air outlet hole 103 of the embodiment, under the condition that the hole shape area of the air outlet hole 103 'is the same as that of the air outlet hole 103' in the prior art, the size of n + t can be increased, in the specific setting, compared with the structure in the prior art, the size of n + t can be increased, n is ensured to be larger than or equal to C, t is also ensured to be larger than or equal to d/10, wherein n is ensured to be larger than or equal to C, the inserting reliability of the air inlet pipe at the air inlet hole 101 can be improved, the air inlet pipe is prevented from loosening at the air inlet hole 101, therefore, the leakage of compressed air is avoided, t.
The middle partition plate 200 is provided with a gas guide hole 201 arranged in a penetrating manner in the first direction, the second cylinder 300 is provided with a second compression cavity 310, and the gas guide hole 201 is used for communicating the gas outlet hole 103 to the second compression cavity 310, so that gas flowing to the gas outlet hole 103 enters the second compression cavity 310 through the gas guide hole 201.
Here, C is the minimum requirement for the depth of the sealing taper tube inserted into the air intake hole 101, n is the closest distance from the air outlet hole 103 to the outer wall surface of the first cylinder 100, t is the closest distance from the air outlet hole 103 to the inner wall surface of the first cylinder 100, and d is the aperture of the air intake hole 102.
This rotation type double-cylinder air compression mechanism establishes the single inspiratory suction hole 101 of double-cylinder on the cylinder, has avoided thickening median septum 200, meanwhile, the hole length of venthole 103 in the second direction is less than the hole length of venthole 103 in the perpendicular to second direction, under the same condition with the hole shape area of prior art venthole 103 ', can increase n + t's size, in specific setting, compared with the structure of prior art, can ensure n is greater than or equal to C, can also ensure t is greater than or equal to d/10, wherein, ensure n is greater than or equal to C, can improve the conical tube and locate the grafting reliability in inlet port 102, prevent that the conical tube is not hard up in inlet port 102, thereby avoid compressed gas to reveal, and ensure t is greater than or equal to d/10, then ensured first cylinder 100 mechanical strength in week.
Therefore, the structure is simple, the manufacturing cost is not increased, and meanwhile, the inserting reliability of the air inlet pipe at the air suction hole 101 in the rotary double-cylinder air compression mechanism is improved to avoid the leakage of compressed air and ensure the mechanical strength of the first cylinder 100 in the circumferential direction.
Preferably, the ratio of the hole length of the outlet holes 103 in the second direction to the hole length of the outlet holes 103 perpendicular to the second direction is 1.1-1.4.
Referring to fig. 5, in an embodiment of the present invention, a rotary dual-cylinder air compressing mechanism is provided, in which an opening direction of the air outlet 103 is a third direction, a straight line starting from a center point of the air outlet and arranged along the third direction and facing away from the center partition 200 is a first straight line, a straight line starting from the center point of the air outlet and arranged along the second direction and facing away from the first compression cavity 110 is a second straight line, and an angle formed between the first straight line and the second straight line is an acute angle, that is, the air outlet 103 is not perpendicular to the air inlet 101. Like this, reduced the angle of turning to of the gaseous of flow direction venthole 103 to avoided reducing the gaseous decline of locating the velocity of flow in venthole 103, reduced velocity of flow loss promptly, thereby be favorable to guaranteeing this rotation type double-cylinder air compression mechanism's compression efficiency, improved this rotation type double-cylinder air compression mechanism's compression efficiency.
Further, the opening direction of the air outlet hole 103 is a third direction, and an angle formed between a straight line arranged along the third direction and facing away from the direction of the middle partition plate 200 and a straight line arranged along the second direction and facing away from the first compression chamber 110 is 25-45 °.
In an embodiment of the present invention, a rotary double-cylinder air compression mechanism is provided, in which the hole wall of the air outlet hole 103 is a smooth wall surface, and there is no corner structure on the hole wall of the air outlet hole 103, so as to prevent the air flow from decreasing the flow speed when flowing through the air outlet hole 103.
Referring to fig. 4, in an embodiment of the present invention, a rotary double-cylinder air compressing mechanism is provided, and the hole shape of the air outlet 103 is an ellipse.
In an embodiment of the present invention, a rotary double-cylinder air compression mechanism is provided, in which the air outlet 103 is a racetrack shape formed by two parallel straight segments arranged oppositely and an arc segment connected between two ends of the two straight segments, and the distance between the two straight segments is smaller than the maximum distance between the two arc segments.
In an embodiment of the present invention, a rotary double-cylinder air compression mechanism is provided, in which the air vent 201 is a through hole structure arranged in a penetrating manner along a first direction, so that in an actual production process, the production and manufacturing difficulty of the middle partition board 200 is facilitated to be simplified, and the production and manufacturing cost is facilitated to be reduced.
Further, the axis of the air-guide hole 301 is inclined from the periphery of the middle partition 200 to the center in the direction in which the first cylinder 100 is directed to the second cylinder 300, to reduce the flow loss of the air flow.
In an embodiment of the present invention, an inclined through hole 320 is formed in the second cylinder 300, one end of the inclined through hole 320 is communicated with the air guide hole 201, the other end of the inclined through hole 320 is communicated with the second compression cavity 310, an axis of the inclined through hole 320 is parallel to an axis of the air guide hole 201, that is, the inclined through hole 320 is not perpendicular to the air guide hole 201, so as to reduce a flow loss of an air flow and improve a compression energy efficiency ratio.
In an embodiment of the present invention, an included angle between an axis of the inclined through hole 320 and an axis of the second cylinder 300 is greater than an included angle between an axis of the air guide hole and an axis of the second cylinder 300, that is, the inclined through hole is not perpendicular to the air guide hole 201, so as to reduce a flow loss of an air flow and improve a compression energy efficiency ratio.
In an embodiment of the present invention, a rotary double-cylinder air compression mechanism is provided, in which the first compression cavity 110 is a through hole structure arranged in a first direction, so as to facilitate the simplification of the manufacturing difficulty of the first cylinder 100 in the actual production process, and thus facilitate the reduction of the manufacturing cost
In an embodiment of the present invention, a rotary double-cylinder air compression mechanism is provided, in which the second compression cavity 310 is a through hole structure arranged in a through manner along the first direction, so that in an actual production process, the difficulty in manufacturing the second cylinder 300 is facilitated to be simplified, and the manufacturing cost is facilitated to be reduced
In an embodiment of the present invention, a double-cylinder single-suction air compressor is provided, where the double-cylinder single-suction air compressor includes a rotary double-cylinder air compression mechanism, and the specific structure of the rotary double-cylinder air compression mechanism refers to the above embodiments.
In the implementation of the invention, the inner diameter of the first cylinder 100 and the inner diameter of the second cylinder 300 are both D, the outer diameter of the double-cylinder single-suction compressor is D0, and D/D0 is more than or equal to 0.42.
In the embodiment of the present invention, the ratio of the hole length of the outlet hole 103 in the second direction to the hole length of the outlet hole 103 in the direction perpendicular to the second direction is 1.1 to 1.4.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a rotation type double-cylinder air compression mechanism, its characterized in that, include the first cylinder, median septum and the second cylinder that set gradually along the first direction, first compression chamber is seted up to the first cylinder, the first cylinder has seted up along the suction hole that the second direction was seted up at its periphery, the inlet port of seting up along the second direction and communicating with the suction hole is seted up in its chamber wall to the first compression chamber, the venthole of intercommunication to the inlet port is seted up to the side that first cylinder is laminated with the median septum, on the cross-section of perpendicular to first direction, the hole length of venthole in the second direction is less than the hole length of venthole in the perpendicular to second direction, the median septum is seted up the air guide hole that link up the setting, the second compression chamber has been seted up to the second cylinder, the air guide hole is used for communicating the venthole to second compression chamber, the second direction is perpendicular with the first direction.
2. A rotary double cylinder air compressing mechanism according to claim 1, wherein the ratio of the hole length of the air outlet hole in the second direction to the hole length of the air outlet hole in the direction perpendicular to the second direction is 1.1 to 1.4.
3. The rotary double-cylinder air compressing mechanism according to claim 1, wherein the opening direction of the air outlet hole is a third direction, the straight line starting from the center point of the air outlet hole and arranged in the third direction and set away from the direction of the middle partition plate is a first straight line, the straight line starting from the center point of the air outlet hole and arranged in the second direction and set away from the first compression chamber is a second straight line, and an angle formed between the first straight line and the second straight line is an acute angle.
4. A rotary double cylinder air compressing mechanism according to claim 3, wherein an angle formed between a line arranged in the third direction and facing away from the center partition and a line arranged in the second direction and facing away from the first compression chamber is 25 to 45 °.
5. The rotary double cylinder air compressing mechanism of claim 1, wherein the hole shape of the air outlet hole is an ellipse; or the air outlet is in a runway shape consisting of two oppositely arranged and parallel straight line sections and an arc line section connected between the two end parts of the two straight line sections, and the distance between the two straight line sections is smaller than the maximum distance between the two arc line sections.
6. A rotary double cylinder air compressing mechanism as claimed in any one of claims 1 to 5, wherein the air guide hole is a through hole structure disposed through in the first direction.
7. A rotary double cylinder air compressing mechanism as claimed in any one of claims 1 to 5, wherein the axis of the air guide hole is inclined from the periphery of the middle partition plate to the center in the direction in which the first cylinder is directed to the second cylinder.
8. The rotary double-cylinder air compression mechanism of claim 7, wherein the second cylinder is provided with an inclined through hole, one end of the inclined through hole is communicated with the air guide hole, the other end of the inclined through hole is communicated with the second compression cavity, and the axis of the inclined through hole is parallel to the axis of the air guide hole; or the included angle between the axis of the inclined through hole and the axis of the second cylinder is larger than the included angle between the axis of the air guide hole and the axis of the second cylinder.
9. A rotary double-cylinder air compressing mechanism as claimed in any one of claims 1 to 5, wherein the first compressing chamber is a through hole structure disposed through in the first direction; the second compression cavity is a through hole structure which is arranged in a penetrating way along the first direction.
10. A twin-cylinder single suction compressor comprising a rotary twin-cylinder air compression mechanism as claimed in any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300538.3A CN110925203A (en) | 2019-12-17 | 2019-12-17 | Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor |
| PCT/CN2020/130569 WO2021120984A1 (en) | 2019-12-17 | 2020-11-20 | Rotary double-cylinder air compression mechanism and double-cylinder single-air suction compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300538.3A CN110925203A (en) | 2019-12-17 | 2019-12-17 | Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN110925203A true CN110925203A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911300538.3A Pending CN110925203A (en) | 2019-12-17 | 2019-12-17 | Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor |
Country Status (2)
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| CN (1) | CN110925203A (en) |
| WO (1) | WO2021120984A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120984A1 (en) * | 2019-12-17 | 2021-06-24 | 广东美芝制冷设备有限公司 | Rotary double-cylinder air compression mechanism and double-cylinder single-air suction compressor |
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| CN101684799A (en) * | 2008-09-27 | 2010-03-31 | 乐金电子(天津)电器有限公司 | Two-stage rotating type compressor |
| CN101684806A (en) * | 2008-09-27 | 2010-03-31 | 乐金电子(天津)电器有限公司 | Enclosed type compressor |
| CN202937450U (en) * | 2012-09-21 | 2013-05-15 | 珠海格力电器股份有限公司 | Intermediate partition board of double-cylinder compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925203A (en) * | 2019-12-17 | 2020-03-27 | 广东美芝制冷设备有限公司 | Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor |
-
2019
- 2019-12-17 CN CN201911300538.3A patent/CN110925203A/en active Pending
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2020
- 2020-11-20 WO PCT/CN2020/130569 patent/WO2021120984A1/en active Application Filing
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| JPH10266984A (en) * | 1997-03-26 | 1998-10-06 | Toshiba Corp | Rotary compressor |
| CN1619150A (en) * | 2003-11-19 | 2005-05-25 | 三菱电机株式会社 | Double cylinder closed rotary compressor and refrigerating air-conditioning device |
| CN101251113A (en) * | 2008-04-09 | 2008-08-27 | 珠海格力电器股份有限公司 | Air suction structure of double-cylinder rotary compressor |
| CN101684799A (en) * | 2008-09-27 | 2010-03-31 | 乐金电子(天津)电器有限公司 | Two-stage rotating type compressor |
| CN101684806A (en) * | 2008-09-27 | 2010-03-31 | 乐金电子(天津)电器有限公司 | Enclosed type compressor |
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| CN202937450U (en) * | 2012-09-21 | 2013-05-15 | 珠海格力电器股份有限公司 | Intermediate partition board of double-cylinder compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120984A1 (en) * | 2019-12-17 | 2021-06-24 | 广东美芝制冷设备有限公司 | Rotary double-cylinder air compression mechanism and double-cylinder single-air suction compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021120984A1 (en) | 2021-06-24 |
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