CN204140314U - Compressor crankcase and the compressor with it - Google Patents
Compressor crankcase and the compressor with it Download PDFInfo
- Publication number
- CN204140314U CN204140314U CN201420506047.0U CN201420506047U CN204140314U CN 204140314 U CN204140314 U CN 204140314U CN 201420506047 U CN201420506047 U CN 201420506047U CN 204140314 U CN204140314 U CN 204140314U
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- hole section
- cylinder
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- matrix
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- 239000011159 matrix material Substances 0.000 claims abstract description 42
- 230000002028 premature Effects 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000005247 gettering Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model discloses a kind of compressor crankcase and have its compressor, wherein compressor crankcase comprises: matrix, and matrix has the axis hole of up/down perforation, and cylinder, cylinder is positioned at the side of matrix and is connected with matrix, cylinder has the first end face of premature and second end face relative with the first end face, cylinder is provided with the vent of through first end face and the second end face, vent comprises the first hole section and the second hole section, first hole section is positioned at one end of cylinder premature and the first end of the first hole section and the first end face conducting, second hole section is positioned at cylinder one end away from matrix, the first end of the second hole section and the second end conducting of the first hole section and the second end face conducting of the second end of the second hole section and cylinder, the radial dimension of the first hole section is greater than the radial dimension of the second hole section.According to the compressor crankcase of the utility model embodiment, improve the refrigerating capacity of compressor, also reduce compressor power input simultaneously, improve the COP of compressor larger.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, more specifically, relates to a kind of compressor crankcase and has its compressor.
Background technique
Compressor efficiency is as one of compressor important performance indexes, and reducing compressor power input is one of method improving compressor efficiency.The reduction of input power is mainly through improving electric efficiency and reducing friction horsepower, improve electric efficiency and can increase cost, reduce compressor competitive ability, friction horsepower reduction is mainly realized by the kinematical viscosity reducing lubricant oil, but oil body reduces individual limit, and lubricant movement viscosity is too little, can destroy lubricant oil bearing capacity, make friction pair be dry friction, cause the increase of component destruction and friction horsepower.
Compressor friction horsepower is made up of reciprocating friction power and pivoting friction power, the reduction of pivoting friction power realizes mainly through refinement crankshaft diameter, crankshaft diameter refinement has individual limit, the refinement of crankshaft diameter can cause low on fuel on compressor, upper low on fuel makes compressor friction lubricating not enough, produce dry friction, cause compressor friction horsepower to increase and component destruction.Reciprocating friction power reduction can be realized by the gap increasing piston and cylinder, but the gap of piston and cylinder increases compressor leakage is increased, and reduction compressor refrigerating capacity, compressor performance can not get raising.
Model utility content
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, the utility model proposes a kind of compressor crankcase, this compressor crankcase, when improving compressor refrigerating capacity, can reduce the friction horsepower of compressor, and improve the working life of compressor.
The utility model also proposes a kind of compressor with above-mentioned compressor crankcase.
According to the compressor crankcase of the utility model first aspect, comprising: matrix, described matrix has the axis hole of up/down perforation, and cylinder, described cylinder is positioned at the side of described matrix and is connected with described matrix, described cylinder has the first end face of contiguous described matrix and second end face relative with described first end face, described cylinder is provided with the vent of through described first end face and the second end face, described vent comprises the first hole section and the second hole section, described first hole section is positioned at the contiguous one end of described matrix of described cylinder and the first end of described first hole section and described first end face conducting, described second hole section is positioned at described cylinder one end away from described matrix, the first end of described second hole section and the second end conducting of described first hole section and the second end of described second hole section and the second end face conducting of described cylinder, the radial dimension of described first hole section is greater than the radial dimension of described second hole section.
According to compressor crankcase of the present utility model, temperature cylinder can be conducive to reduce, reduce coolant media breathing process overheated in vent, improve the gettering efficiency of compressor, thus improve the refrigerating capacity of compressor, also reduce compressor power input simultaneously, improve the COP of compressor larger, compressor friction horsepower can also be reduced, extend the working life of piston and cylinder, thus improve the life-span of compressor.
In addition, according to compressor crankcase of the present utility model, following additional technical characteristics can also be had:
According to an embodiment of the present utility model, described first hole section and described second hole section are formed as cylinder hole respectively.
According to an embodiment of the present utility model, seamlessly transit between described first hole section and described second hole section.
According to an embodiment of the present utility model, described first hole section reduces gradually from first end to the radial dimension of the second extreme direction, and described second hole section is formed as cylinder hole.
According to an embodiment of the present utility model, rounding off between the second end of described first hole section and the first end of described second hole section.
According to an embodiment of the present utility model, the first end of described first hole section and the second end of described second hole section are formed with chamfering respectively.
According to an embodiment of the present utility model, the axial dimension of described first hole section is greater than the axial dimension of described second hole section.
According to an embodiment of the present utility model, the axial dimension of described first hole section is 2-3 times of the axial dimension of described second hole section.
According to the compressor crankcase of the utility model embodiment, comprising: matrix, described matrix has the axis hole of up/down perforation, and cylinder, described cylinder is positioned at the side of described matrix and is connected with described matrix, described cylinder has the first end face of contiguous described matrix and second end face relative with described first end face, described cylinder is provided with the vent of through described first end face and the second end face, described vent comprises the first hole section and the second hole section, described first hole section is positioned at the contiguous one end of described matrix of described cylinder and the first end of described first hole section and described first end face conducting, described second hole section is positioned at described cylinder one end away from described matrix, the first end of described second hole section and the second end conducting of described first hole section and the second end of described second hole section and the second end face conducting of described cylinder, described first hole section reduces gradually from first end to the radial dimension of the second extreme direction, the radial dimension of described second hole section equals the radial dimension of the second end of described first hole section, the axial dimension of described first hole section is greater than the axial dimension of described second hole section.
According to the compressor of the utility model second aspect, comprising: the compressor crankcase according to above-described embodiment; And piston, described piston is located in described vent and axis along described vent is movable.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the compressor crankcase according to the utility model embodiment;
Fig. 2 is the close-up schematic view of A in Fig. 1;
Fig. 3 is the close-up schematic view of B in Fig. 1.
Reference character:
Compressor crankcase 100;
Matrix 10; Axis hole 11;
Cylinder 20; First end face 201; Second end face 202; Vent 21; First hole section 211; Second hole section 212; Chamfering 213.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", " outward ", " axis ", orientation or the position relationship of the instruction such as " radial direction " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
First the compressor crankcase 100 according to the utility model embodiment is specifically described by reference to the accompanying drawings below.
As shown in Figure 1 to Figure 3, matrix 10 and cylinder 20 is comprised according to the compressor crankcase 100 of the utility model embodiment.Specifically, matrix 10 has the axis hole 11 of up/down perforation, cylinder 20 is positioned at the side of matrix 10 and is connected with matrix 10, and cylinder 20 has the first end face of premature 10 and second end face relative with the first end face, and cylinder 20 is provided with the vent 21 of through first end face and the second end face.
Wherein, vent 21 comprises the first hole section 211 and the second hole section 212, first hole section 211 is positioned at one end of cylinder 20 premature 10 and the first end of the first hole section 211 and the first end face 201 conducting, second hole section 212 is positioned at cylinder 20 one end away from matrix 10, the first end of the second hole section 212 and the second end conducting of the first hole section 211 and the second end face 202 conducting of the second end of the second hole section 212 and cylinder 20, the radial dimension of the first hole section 211 is greater than the radial dimension of the second hole section 212.
In other words, as shown in Figure 1, matrix 10 forms the structure of up/down perforation by axis hole 11, and cylinder 20 is connected with matrix 10 and is located at above the right side of matrix 10.Cylinder 20 horizontal positioned in left-right direction, is positioned at the end face of left end in the first end face 201 i.e. Fig. 1 of cylinder 20, be positioned at the end face of right-hand member in the second end face 202 i.e. Fig. 1 of cylinder 20.
First end face 201 and the second end face 202 through by the vent 21 arranged in left-right direction, vent 21 is divided into the first hole section 211 and the second hole section 212 of mutual conducting in the lateral direction, first hole section 211 is positioned at the left side of cylinder 20, and the second hole section 212 is positioned at the right side of cylinder 20.
The first end i.e. left end of the first hole section 211 of the first hole section 211, the second end i.e. right-hand member of the first hole section 211 of the first hole section 211, the first end i.e. left end of the second hole section 212 of the second hole section 212, the second end i.e. right-hand member of the second hole section 212 of the second hole section 212.The left end of the first hole section 211 and the first end face 201 conducting, the right-hand member of the second hole section 212 and the second end face 202 conducting.
Piston (not shown) is located in vent 21, and along the axial reciprocable of vent 21, i.e. piston reciprocable in left-right direction in vent 21.Gap is there is between the internal face of piston and vent 21, the radial dimension of the first hole section 211 is greater than the radial dimension of the second hole section 212, also just illustrate, the size in the gap between piston and the first hole section 211 is greater than the size in the gap between piston and the second hole section 212.
It should be noted that, the gap between piston and vent 21 is very little and there is one deck lubricant film in gap, and in gap, lubricant film plays seal action, can reduce Leakage Gas.Lubricant oil has viscosity, and because piston moves in vent 21, make lubricant oil produce viscous resistance, i.e. internal friction, and internal friction and oil slick thickness are inversely proportional to, oil film is thicker, and internal friction is less.
Lubricant oil in the gap of piston and vent 21 can take away frictional heat, gap is larger, and the frictional heat taken away is more, but it is large to cause volume to leak, compressor refrigerating capacity is reduced, gap is less, and sealing is better, and volume leaks low, compressor refrigerating capacity obtains height, but piston and cylinder 20 can not get sufficient lubrication, the friction of piston and cylinder 20 may be dry friction, causes friction horsepower to increase.
And be divided into the first different hole section 211 and the second hole section 212 of two pore sizes according to the vent 21 of the utility model embodiment, the compatible advantage that between piston and vent 21, gap is large and little, can compressor refrigerating capacity be improved, compressor friction horsepower can be reduced again.
Particularly, piston is reciprocating in vent 21, and when compressor is exhausted, the gas in the middle of piston and vent 21 is the gas of High Temperature High Pressure, and high-temperature gas makes vent 21 temperature raise, and makes vent 21 overheated.Before exhaust, the gas of vent 21 compresses, high temperature and high pressure gas is become from low temperature low pressure gas, leading portion compression process is carried out in the first hole section 211, pressure in vent 21 slowly increases, and the gap of piston and vent 21 diminishes thereupon, and quantity of gas leakage is directly proportional to the gas pressure of the gap between piston and the internal face of the first hole section 211 and vent 21, Leakage Gas is controlled, and ensures compressor air suction efficiency.
Second hole section 212 of vent 21 can be cylinder hole, when the pressurized gas of vent 21 have compressed and will discharge vent 21, piston movement is to the second hole section 212 of vent 21, gap between the internal face of piston and vent 21 is least part, the good airproof performance of piston and cylinder 20, the gas reducing High Temperature High Pressure leaks from the gap of piston and vent 21, the gettering efficiency of guarantee compressor.
Gap between first hole section 211 of cylinder 20 and piston is large, and oil film is thick, and compressor friction horsepower is reduced, and reduces compressor power input, under guarantee compressor cold prerequisite, improves compressor COP.When compressor carries out air-breathing, piston moves from the second hole section 212 of vent 21 to the first hole section 211, and the gap between piston and vent 21 slowly becomes large, and oil slick thickness slowly becomes large, gas pressure in vent 21 slowly reduces, Leakage Gas is controlled, and cylinder 20 and piston internal friction diminish thereupon, and sufficient lubricant oil can be taken away, and friction generates heat, reduce the temperature of cylinder 20 cylinder head, reduce suction superheat, thus improve compressor air suction efficiency, improve compressor refrigerating capacity.
Thus, according to the compressor crankcase 100 of the utility model embodiment, by the vent 21 of cylinder 20 is divided into the different hole section of two radial dimensions, the first hole section 211 that radial dimension is larger can store more lubricant oil, when piston is reciprocating in vent 21, more how fricative heat can be taken away, be conducive to cylinder 20 temperature to reduce, avoid the coolant media superheating phenomenon that breathing process causes in vent 21, improve the gettering efficiency of compressor, thus improve the refrigerating capacity of compressor.
The internal face of the first hole section 211 and the gap of piston larger, thick than between the internal face of the second hole section 212 and piston of oil slick thickness in gap, according to fluid mechanics, frictional force between the internal face of the vent 21 of piston and cylinder 20 is reduced, thus can reduce the friction horsepower of compressor.
According to the compressor crankcase 100 of the utility model embodiment, while the refrigerating capacity improving compressor, the input power of compressor can also be reduced, thus improve the COP of compressor larger.According to measured data, adopt the compressor crankcase 100 of the utility model embodiment, the cold of compressor can improve 1-2W, and COP can improve 3-5%.
In addition, owing to can store more lubricant oil compared between the second hole section 212 and piston between the first hole section 211 and piston, oil film is thicker, can bear larger internal friction, the working life of piston and cylinder 20 can be extended, thus improve the working life of compressor.
According to an embodiment of the present utility model, the first hole section 211 and the second hole section 212 are formed as cylinder hole respectively, further, seamlessly transit between the first hole section 211 and the second hole section 212.That is, the first hole section 211 and the second hole section 212 are all formed as the through hole of column structure, and the aperture of the first hole section 211 is larger than the aperture of the second hole section 212.
Seamlessly transit between first hole section 211 and the second hole section 212, that is, between the first hole section 211 and the second hole section 212, be provided with one section of changeover portion reduced gradually to the second aperture, hole section 212 direction by the first hole section 211.Thus, on the basis of above-mentioned effect ensureing compressor crankcase 100, piston normal activity in vent 21 can also be ensured.
In other embodiments of the present utility model, as shown in Figure 1, first hole section 211 reduces gradually from first end to the radial dimension of the second extreme direction, and the second hole section 212 is formed as cylinder hole, rounding off between the second end of the first hole section 211 and the first end of the second hole section 212.
In other words, the first hole section 211 is formed as the taper hole structure that aperture from left to right reduces gradually, and the second hole section 212 is formed as the equal cylinder hole in aperture from left to right.The radial dimension of the right-hand member of the first hole section 211 is greater than the radial dimension of the left end of the second hole section 212, also can arrange the hole section of the rounding off being convenient to piston movement between the right-hand member of the first hole section 211 and the left end of the second hole section 212.
Thus, according to the compressor crankcase 100 of the utility model embodiment, by the first hole section 211 is arranged to taper hole structure, when piston moves in the first hole section 211, there is progressive formation in the gap between the internal face of the first hole section 211 and piston, the leakage of gas can be controlled better, ensure the gettering efficiency of compressor.
Be understandable that, in other embodiments of the present utility model, the first hole section 211 reduces gradually from first end to the radial dimension of the second extreme direction, and the radial dimension of the second hole section 212 can equal the radial dimension of the second end of the first hole section 211.
That is, the radial dimension of the right-hand member of the first hole section 211 is identical with the radial dimension of the left end of the second hole section 212, when first hole section 211 is taper hole, namely first hole section 211 itself can be used as the changeover portion of piston in vent 21, piston, by can directly enter in the second hole section 212 after the first hole section 211, does not therefore need between the first hole section 211 and the second hole section 212, arrange changeover portion and equally can ensure piston normal operation in vent 21.
As shown in Figure 1, according to an embodiment of the present utility model, the axial dimension of the first hole section 211 is greater than the axial dimension of the second hole section 212.Further, the axial dimension of the first hole section 211 is 2-3 times of the axial dimension of the second hole section 212.That is, the first hole section 211 size is in the lateral direction greater than the second hole section 212 size in the lateral direction and the first hole section 211 is of a size of the 2-3 of the second hole section 212 size in the lateral direction doubly in the lateral direction.Thus, the first hole section 211 of this structure and the second hole section 212 ensure the sufficient lubrication between piston and the internal face of vent 21 while piston can be made in vent 21 to produce enough internal frictions with oil film, thus improve the gettering efficiency of compressor.
As shown in Figures 2 and 3, according to an embodiment of the present utility model, the first end of the first hole section 211 and the second end of the second hole section 212 are formed with chamfering 213 respectively.That is, the left end of the first hole section 211 is provided with chamfering 213, and the right-hand member of the second hole section 212 is also provided with chamfering 213, and namely the two ends, left and right of vent 21 are respectively equipped with chamfering 213.Thus, chamfering 213 is set respectively by the two ends at vent 21, piston can be made more easily to coordinate with vent 21, assemble and use more convenient.
The compressor crankcase 100 according to the utility model above-described embodiment is comprised according to the compressor of the utility model embodiment, because the compressor crankcase 100 according to the utility model above-described embodiment has above-mentioned technique effect, therefore, compressor according to the utility model embodiment also has corresponding technique effect, namely compressor air suction efficiency is high, and refrigerating capacity is high, and friction horsepower is low, COP is high, and long service life.
According to the compressor of the utility model embodiment other form and operation be all known for those of ordinary skills, be not described in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.
Claims (10)
1. a compressor crankcase, is characterized in that, comprising:
Matrix, described matrix has the axis hole of up/down perforation; With
Cylinder, described cylinder is positioned at the side of described matrix and is connected with described matrix, described cylinder has the first end face of contiguous described matrix and second end face relative with described first end face, and described cylinder is provided with the vent of through described first end face and the second end face
Described vent comprises the first hole section and the second hole section, described first hole section is positioned at the contiguous one end of described matrix of described cylinder and the first end of described first hole section and described first end face conducting, described second hole section is positioned at described cylinder one end away from described matrix, the first end of described second hole section and the second end conducting of described first hole section and the second end of described second hole section and the second end face conducting of described cylinder, the radial dimension of described first hole section is greater than the radial dimension of described second hole section.
2. compressor crankcase according to claim 1, is characterized in that, described first hole section and described second hole section are formed as cylinder hole respectively.
3. compressor crankcase according to claim 2, is characterized in that, seamlessly transits between described first hole section and described second hole section.
4. compressor crankcase according to claim 1, is characterized in that, described first hole section reduces gradually from first end to the radial dimension of the second extreme direction, and described second hole section is formed as cylinder hole.
5. compressor crankcase according to claim 4, is characterized in that, rounding off between the second end of described first hole section and the first end of described second hole section.
6. compressor crankcase according to claim 4, is characterized in that, the first end of described first hole section and the second end of described second hole section are formed with chamfering respectively.
7. the compressor crankcase according to any one of claim 1-6, is characterized in that, the axial dimension of described first hole section is greater than the axial dimension of described second hole section.
8. compressor crankcase according to claim 7, is characterized in that, the axial dimension of described first hole section is 2-3 times of the axial dimension of described second hole section.
9. a compressor crankcase, is characterized in that, comprising:
Matrix, described matrix has the axis hole of up/down perforation;
Cylinder, described cylinder is positioned at the side of described matrix and is connected with described matrix, described cylinder has the first end face of contiguous described matrix and second end face relative with described first end face, and described cylinder is provided with the vent of through described first end face and the second end face
Described vent comprises the first hole section and the second hole section, described first hole section is positioned at the contiguous one end of described matrix of described cylinder and the first end of described first hole section and described first end face conducting, described second hole section is positioned at described cylinder one end away from described matrix, the first end of described second hole section and the second end conducting of described first hole section and the second end of described second hole section and the second end face conducting of described cylinder, described first hole section reduces gradually from first end to the radial dimension of the second extreme direction, the radial dimension of described second hole section equals the radial dimension of the second end of described first hole section, the axial dimension of described first hole section is greater than the axial dimension of described second hole section.
10. a compressor, is characterized in that, comprising:
Compressor crankcase according to any one of claim 1-9; With
Piston, described piston is located in described vent and axis along described vent is movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506047.0U CN204140314U (en) | 2014-09-03 | 2014-09-03 | Compressor crankcase and the compressor with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506047.0U CN204140314U (en) | 2014-09-03 | 2014-09-03 | Compressor crankcase and the compressor with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140314U true CN204140314U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420506047.0U Expired - Lifetime CN204140314U (en) | 2014-09-03 | 2014-09-03 | Compressor crankcase and the compressor with it |
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| Country | Link |
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| CN (1) | CN204140314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165133A (en) * | 2014-09-03 | 2014-11-26 | 安徽美芝制冷设备有限公司 | Compressor crankcase and compressor with same |
-
2014
- 2014-09-03 CN CN201420506047.0U patent/CN204140314U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165133A (en) * | 2014-09-03 | 2014-11-26 | 安徽美芝制冷设备有限公司 | Compressor crankcase and compressor with same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |