CN110319017A - Crankshaft group, pump assembly, compressor and heat pump system - Google Patents
Crankshaft group, pump assembly, compressor and heat pump system Download PDFInfo
- Publication number
- CN110319017A CN110319017A CN201910649887.XA CN201910649887A CN110319017A CN 110319017 A CN110319017 A CN 110319017A CN 201910649887 A CN201910649887 A CN 201910649887A CN 110319017 A CN110319017 A CN 110319017A
- Authority
- CN
- China
- Prior art keywords
- eccentric part
- crankshaft
- cylinder
- roller
- pump assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/10—Crankshafts assembled of several parts, e.g. by welding by crimping
- F16C3/12—Crankshafts assembled of several parts, e.g. by welding by crimping releasably connected
-
- 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
- F04C2240/60—Shafts
- F04C2240/601—Shaft flexion
Abstract
The application provides a kind of crankshaft group, pump assembly, compressor and heat pump system.The crankshaft group includes crankshaft body (1), the first eccentric part (2) and the second eccentric part (3), first eccentric part (2) and the second eccentric part (3) are arranged along the axially spaced-apart of crankshaft body (1), at least one is detachably connected between crankshaft body (1) for the first eccentric part (2) and the second eccentric part (3).According to the crankshaft group of the application, partition center-hole diameter can be reduced, guarantee the seal distance and sealing performance of partition, improve compressor performance.
Description
Technical field
This application involves air-conditioning technique fields, and in particular to a kind of crankshaft group, pump assembly, compressor and heat pump
System.
Background technique
As shown in Figure 1, Conventional rotary double cylinder compressor pump body assembly method, lower cylinder and lower flange are completed on crankshaft
Centering obtains component 1 ', and upper cylinder and upper flange complete centering on crankshaft and obtain component 2 ', component 1 ' and component 2 ' by every
Plate 3 ' separates, and is connected component 1 ' and component 2 ' using screw.
When component 1 ' is connect with component 2 ', crankshaft needs the centre bore across partition 3 ', so the centre bore of partition 3 ' is straight
Diameter needs to be greater than crankshaft eccentric portion diameter.When eccentricity design is larger, corresponding partition center-hole diameter is also required to increase, this
When partition and the seal distance of roller can be less than normal, influence compressor performance.It is bent in order to guarantee that the seal distance of part is met the requirements
Eccentric shaft amount size is restricted, and further compressor displacement is also restricted.
Summary of the invention
Therefore, the application technical problems to be solved are to provide a kind of crankshaft group, pump assembly, compressor and heat pump
System can reduce partition center-hole diameter, guarantee the seal distance and sealing performance of partition, improve compressor performance.
To solve the above-mentioned problems, the application provides a kind of crankshaft group, including crankshaft body, the first eccentric part and second
Eccentric part, the first eccentric part and the second eccentric part are arranged along the axially spaced-apart of crankshaft body, the first eccentric part and the second eccentric part
At least one is detachably connected between crankshaft body.
Preferably, the first eccentric part is detachably connected on crankshaft body, is led between the first eccentric part and crankshaft body
Cross connection key connection.
Preferably, keyway is provided on the first eccentric part, keyway axially penetrates through the first eccentric part.
Preferably, a side opening of the first eccentric part.
Preferably, the second eccentric part is detachably connected on crankshaft body, is led between the second eccentric part and crankshaft body
Cross connection key connection.
Preferably, keyway is provided on the second eccentric part, keyway axially penetrates through the second eccentric part.
Preferably, a side opening of the second eccentric part.
Preferably, it is arranged with the first roller outside the first eccentric part, the second roller is arranged with outside the second eccentric part.
Preferably, the first roller is structure as a whole with the first eccentric part；And/or second roller and the second eccentric part be one
Body structure.
According to the another aspect of the application, a kind of pump assembly, including crankshaft group are provided, which is above-mentioned
Crankshaft group.
Preferably, when crankshaft includes the first roller and the second roller, pump assembly further include along crankshaft body it is axial according to
The first flange of secondary setting, the first cylinder, middle partition, the second cylinder and second flange, the first cylinder are set in outside the first roller,
Second cylinder is set in outside the second roller.
Preferably, when being detachably connected between the second eccentric part and crankshaft body, the second cylinder and middle partition form one
Formula compression cylinder.
Preferably, the first cylinder is fixedly connected on integral type compression cylinder by the first screw, and first flange passes through second
Screw is fixedly connected on the first cylinder, and second flange is fixedly connected on integral type compression cylinder by third screw.
Preferably, sliding vane groove is provided on integral type compression cylinder, sliding vane groove extends radially through the side side wall of the second cylinder.
Preferably, when being detachably connected between the first eccentric part and crankshaft body, the first cylinder and middle partition form one
Formula compression cylinder.
According to the another aspect of the application, a kind of compressor is provided, including above-mentioned crankshaft group or the above-mentioned pump housing
Component.
According to the application's in another aspect, providing a kind of heat pump system, including above-mentioned compressor.
Crankshaft group provided by the present application, including crankshaft body, the first eccentric part and the second eccentric part, the first eccentric part and
Second eccentric part is arranged along the axially spaced-apart of crankshaft body, the first eccentric part and the second eccentric part at least one with crankshaft sheet
It is detachably connected between body.When the first eccentric part and the second eccentric part at least one can between crankshaft body it is removable
When connecting with unloading, in carrying out installation process, side where crankshaft body from detachable eccentric part can be passed through into middle partition first
Afterwards, then setting-up eccentricity portion, the center-hole diameter of partition middle in this way are no longer influenced by the limitation of eccentric part diameter, therefore center-hole diameter
What can be done compared with the prior art is smaller, can more efficiently guarantee seal distance, more rationally neatly design crankshaft
Eccentricity promotes the working performance of compressor.
Detailed description of the invention
Fig. 1 is the assembly process figure of the pump assembly of the prior art；
Fig. 2 is the decomposition texture schematic diagram of the crankshaft group of the embodiment of the present application；
Fig. 3 is the decomposition texture schematic diagram of the pump assembly of the embodiment of the present application；
Fig. 4 is the structural schematic diagram of the integral type compression cylinder of the pump assembly of the embodiment of the present application；
Fig. 5 is the structural schematic diagram of the second eccentric part of the pump assembly of the embodiment of the present application.
Appended drawing reference indicates are as follows:
1, crankshaft body；2, the first eccentric part；3, the second eccentric part；4, connecting key；5, the first roller；6, the second roller；
7, first flange；8, the first cylinder；9, second flange；10, integral type compression cylinder；11, sliding vane groove；12, keyway；13, first is sliding
Piece；14, the second slide plate.
Specific embodiment
In conjunction with to shown in Fig. 5, according to an embodiment of the present application, crankshaft group includes that crankshaft body 1, first is inclined referring to fig. 2
Center portion 2 and the second eccentric part 3, the first eccentric part 2 and the second eccentric part 3 are arranged along the axially spaced-apart of crankshaft body 1, and first is eccentric
At least one is detachably connected between crankshaft body 1 for portion 2 and the second eccentric part 3.
When the first eccentric part 2 and the second eccentric part 3 at least one can between crankshaft body 1 it is detachably connected
When, in carrying out installation process, after crankshaft body 1 being passed through middle partition from dismountable eccentric part place side first, then
The center-hole diameter in setting-up eccentricity portion, partition middle in this way is no longer influenced by the limitation of eccentric part diameter, therefore the centre bore of middle partition
Diameter can middle partition compared with the prior art do it is smaller, can more efficiently guarantee in partition seal distance, and
And crankshaft eccentric amount more rationally can be neatly designed, promote the working performance of compressor.
The first eccentric part 2 is detachably connected on crankshaft body 1 in one of the embodiments, the first eccentric part 2 with
It is connected between crankshaft body 1 by connecting key 4.Using key connection, connection structure letter between first eccentric part 2 and crankshaft body
It is single, it is convenient to mount and dismount, circumferential limit can be formed between the first eccentric part 2 and crankshaft body 1 by connecting key 4, in the middle partition
After being installed with first flange 7, and axial limiting can be formed to the first eccentric part 2 by middle partition and first flange 7, protected
Demonstrate,prove the installation positioning of the first eccentric part 2.
In the present embodiment, keyway 12 is provided on the first eccentric part 2, keyway 12 axially penetrates through the first eccentric part 2.In song
A keyway is also equipped in shaft body 1, the length of the keyway is identical as the length of connecting key 4, and position is located at the first eccentric part 2
At axially mounted position on crankshaft body 1, it is ensured that the cooperation position accuracy of connecting key 4 and the first eccentric part 2.Key
Slot 12 axially penetrates through the first eccentric part 2, can facilitate the first eccentric part 2 along axially mounted on crankshaft body 1, not the company of will receive
The barrier effect for connecing key 4 facilitates realization installation cooperation, and since the length of the first eccentric part 2 is shorter, processing capacity is more
Small, processing efficiency is higher, and material consumption amount is less.It is circumferential that first eccentric part can also be connected by screw to either other way
Limit is on crankshaft body 1.
Preferably, a side opening of the first eccentric part 2 can be with when the first eccentric part 2 to be mounted on crankshaft body 1
Installation difficulty of first eccentric part 2 on crankshaft body 1 is reduced using the opening of the first eccentric part 2, is installed in the first eccentric part 2
It after completion, can be set in outside the first eccentric part 2 by the first roller 5, the first eccentric part 2 is formed and is constrained, prevents first
The opening of eccentric part 2 is opened, and guarantees the stability and reliability of 2 mounting structure of the first eccentric part, so that the first eccentric part 2 is more preferable
Ground is locked on crankshaft body 1.
In another embodiment, the second eccentric part 3 is detachably connected on crankshaft body 1, the second eccentric part 3 with
It is connected between crankshaft body 1 by connecting key 4.
Keyway 12 is provided on second eccentric part 3, keyway 12 axially penetrates through the second eccentric part 3.
One side opening of the second eccentric part 3.
It is arranged with the first roller 5 outside first eccentric part 2, is arranged with the second roller 6 outside the second eccentric part 3.
In another embodiment, the first eccentric part 2 and the second eccentric part 3 simultaneously removably with crankshaft body 1 it
Between be attached.
First roller 5 is structure as a whole with the first eccentric part 2；And/or second roller 6 and the second eccentric part 3 be integrated knot
Structure.
After eccentric part and roller are made of one formula design, number of parts can be reduced, assembly process is reduced, reduces dress
With difficulty, assembly efficiency is improved.By changing the parameter of eccentric part, compressor displacement can be changed, while easily facilitating realization
General design.
According to an embodiment of the present application, pump assembly includes crankshaft group, which is above-mentioned crankshaft group.
When crankshaft includes the first roller 5 and the second roller 6, pump assembly further includes successively setting along the axial direction of crankshaft body 1
First flange 7, the first cylinder 8, middle partition, the second cylinder and the second flange 9 set, the first cylinder 8 are set in the first roller 5
Outside, the second cylinder is set in outside the second roller 6.A sliding vane groove 11 is provided on the first cylinder 8, the setting of the first slide plate 13 exists
In the sliding vane groove 11, and be pushed against the outer surface of the first roller 5 under the action of the spring, thus meet the first cylinder 8 air-breathing and
Exhaust needs.It is provided with a sliding vane groove 11 on the second cylinder, the second slide plate 14, the slide plate are provided in the sliding vane groove 11
A spring is additionally provided in slot 11, which is used to provide elastic force for the second slide plate 14, so that the second slide plate 14 pushes against always
In the outer surface of the second roller 6, meet the air-breathing and exhaust needs of the second cylinder.
Preferably, when being detachably connected between the second eccentric part 3 and crankshaft body 1, the second cylinder and middle partition form one
Body formula compression cylinder 10.
In such a way that the second cylinder and middle partition are designed as integral type compression cylinder 10, number of parts can be reduced, is mentioned
High assembly efficiency, while avoiding the case where middle partition is easy to happen dislocation in existing design.
Preferably, the first cylinder 8 is fixedly connected on integral type compression cylinder 10 by the first screw, and first flange 7 passes through
Second screw is fixedly connected on the first cylinder 8, and second flange 9 is fixedly connected on integral type compression cylinder 10 by third screw
On.
Using after unitary design, the working chamber of pump assembly only has the first cylinder 8 and one for second cylinder and middle partition
Formula compression cylinder, the first roller 5 and the second roller 6 can be by adjusting the first cylinders 8 and one with the centering gap of corresponding cylinder
The relative position of formula compression cylinder 10 determines simultaneously, is then screwed relative position.When connecting flange, if guarantee flange with
Crankshaft major and minor axis is concentric.The entire pump housing reduces screw length by the segmentation connection of multiple screws, improve long spiro nail with
The problem of pump body interference causes cylinder to shift, influences compressor performance and reliability.
In the present embodiment, pump housing assembly can cut short screw needed length using three layers of screw connection, improve assembly matter
Amount.Preferably, each layer includes multiple screws, and each layer of multiple screws are circumferentially evenly arranged, are respectively completed at this time
When the connection of first flange 7 and second flange 9 and cylinder, same centering apparatus can be used, only do once inside out, reduced
Centering number.
Sliding vane groove 11 is provided on integral type compression cylinder 10, sliding vane groove 11 extends radially through the side side wall of the second cylinder.
Since the middle partition of integral type compression cylinder 10 and the second cylinder are an integral structure, middle partition can play connection function,
The bonding strength of sliding vane groove 11 eliminates the reliance on the coupling part thickness in slot bottom hole Yu cylinder outer circle, which can be thinned or take
Disappear, slide plate length can suitably increase, while reduce slide plate stretching rate, reduce slide plate side wear, improve slide plate working performance
And reliability.
In another embodiment, when being detachably connected between the first eccentric part 2 and crankshaft body 1,8 He of the first cylinder
Middle partition forms integral type compression cylinder 10.
It when carrying out the assembly of pump assembly, can be assembled with the following method: first complete crankshaft group assembly；So
The first roller 5 and the second roller 6 are assembled on crankshaft group afterwards；According to centering gap, obtains the first cylinder 8 and compressed with integral type
The relative position of cylinder 10；Then the first cylinder 8 is linked together with integral type compression cylinder 10 using sunk screw.It dismantles later
Then crankshaft body 1 is passed through the centre bore of middle partition so that the second eccentric part 3 is removed from crankshaft body 1 by crankshaft group
Afterwards, first flange 7, concentric fits first flange 7 and crankshaft long axis are connected.Then the second eccentric part 3, the second roller 6 are assembled, even
Connect second flange 9, and concentric fits second flange 9 and crankshaft short axle.
Pump assembly can also be assembled using following methods: completion first flange 7 and the first cylinder 8 first is determined
Then the heart assembles integral type compression cylinder 10, after integral type compression cylinder 10 passes through crankshaft short axle, assemble the second eccentric part 3 and the
Two rollers 6 complete the centering of integral type compression cylinder 10, are fixed as one formula compression cylinder 10 by sunk screw, integral type is compressed
Cylinder 10 is locked on the first cylinder 8, and corresponding sunk screw direction needs to adjust.Then second flange 9, concentric fits second are connected
Flange 9 and crankshaft short axle.
When the second eccentric part 3 of crankshaft group is removable, with the lower end surface thrust of the first eccentric part 2, crankshaft can reduce
It swings, distance of the upper surface of the first eccentric part 2 apart from first flange 7 is 0.7~1.5mm at this time；Can also allow first bias
Portion 2 is removable, with the lower end surface thrust of the second eccentric part 3, also needs upper the first method of thrust surface distance for meeting the first eccentric part 2
The distance of orchid 7 is 0.7~1.5mm.Second eccentric part 3 and the second roller 6 can do unitary design, reduce number of parts.Change
The eccentricity for becoming the second eccentric part 3 can correspond to change discharge capacity, improve generalization degree.
When integral type compression cylinder 10 is for depressing contracting chamber, since roller end face does not contact directly with surface of internal cavity, thus it is interior
Chamber surface roughness requirements can be increased suitably.When technique is met the requirements, integral type compression cylinder 10 can be used for upper compression chamber,
Corresponding change assembly method.After integral type compression cylinder 10, slot bottom hole and cylinder outer circle wall thickness can not be limited, or directly
Cancel slot bottom hole, sliding vane groove pulls through.It is corresponding to increase slide plate length under the premise of slide plate is without departing from cylinder outer circle, guarantee to slide
Piece stretching rate < 40% reduces slide plate side wear, improves performance and reliability.
According to an embodiment of the present application, compressor includes above-mentioned crankshaft group or above-mentioned pump assembly.
According to an embodiment of the present application, heat pump system includes above-mentioned compressor.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is only the preferred embodiments of the application, not to limit the application, it is all in spirit herein and
Made any modifications, equivalent replacements, and improvements etc., should be included within the scope of protection of this application within principle.Above only
It is the preferred embodiment of the application, it is noted that for those skilled in the art, do not departing from this Shen
Several improvements and modifications please can also be made, these improvements and modifications also should be regarded as the guarantor of the application under the premise of technical principle
Protect range.
Claims (17)
1. a kind of crankshaft group, which is characterized in that including crankshaft body (1), the first eccentric part (2) and the second eccentric part (3), institute
The axially spaced-apart that the first eccentric part (2) and second eccentric part (3) are stated along the crankshaft body (1) is arranged, and described first partially
At least one is detachably connected between the crankshaft body (1) for center portion (2) and second eccentric part (3).
2. crankshaft group according to claim 1, which is characterized in that first eccentric part (2) is detachably connected to
On the crankshaft body (1), it is connect between first eccentric part (2) and the crankshaft body (1) by connecting key (4).
3. crankshaft group according to claim 2, which is characterized in that be provided with keyway on first eccentric part (2)
(12), the keyway (12) axially penetrates through first eccentric part (2).
4. crankshaft group according to claim 2, which is characterized in that a side opening of first eccentric part (2).
5. crankshaft group according to claim 1, which is characterized in that second eccentric part (3) is detachably connected to
On the crankshaft body (1), it is connect between second eccentric part (3) and the crankshaft body (1) by connecting key (4).
6. crankshaft group according to claim 5, which is characterized in that be provided with keyway on second eccentric part (3)
(12), the keyway (12) axially penetrates through second eccentric part (3).
7. crankshaft group according to claim 5, which is characterized in that a side opening of second eccentric part (3).
8. crankshaft group according to any one of claim 1 to 7, which is characterized in that the first eccentric part (2) housing
Equipped with the first roller (5), the second roller (6) are arranged with outside second eccentric part (3).
9. crankshaft group according to claim 8, which is characterized in that first roller (5) and first eccentric part
(2) it is structure as a whole；And/or second roller (6) is structure as a whole with second eccentric part (3).
10. a kind of pump assembly, including crankshaft group, which is characterized in that the crankshaft group is any in claim 1 to 9
Crankshaft group described in.
11. pump assembly according to claim 10, which is characterized in that the crankshaft includes the first roller (5) and second
When roller (6), the pump assembly further includes the first flange (7) set gradually along the axial direction of the crankshaft body (1), first
Cylinder (8), middle partition, the second cylinder and second flange (9), first cylinder (8) are set in first roller (5) outside,
Second cylinder is set in second roller (6) outside.
12. pump assembly according to claim 11, which is characterized in that second eccentric part (3) and the crankshaft sheet
When being detachably connected between body (1), second cylinder and the middle partition form integral type compression cylinder (10).
13. pump assembly according to claim 12, which is characterized in that first cylinder (8) is solid by the first screw
Surely it is connected on the integral type compression cylinder (10), the first flange (7) is fixedly connected on described first by the second screw
On cylinder (8), the second flange (9) is fixedly connected on the integral type compression cylinder (10) by third screw.
14. pump assembly according to claim 12, which is characterized in that be provided with cunning on the integral type compression cylinder (10)
Film trap (11), the sliding vane groove (11) extend radially through the side side wall of second cylinder.
15. pump assembly according to claim 11, which is characterized in that first eccentric part (2) and the crankshaft sheet
When being detachably connected between body (1), first cylinder (8) and the middle partition form integral type compression cylinder (10).
16. a kind of compressor, which is characterized in that including crankshaft group or claim described in any one of claims 1 to 9
Pump assembly described in any one of 10 to 15.
17. a kind of heat pump system, which is characterized in that including the compressor described in claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910649887.XA CN110319017A (en) | 2019-07-18 | 2019-07-18 | Crankshaft group, pump assembly, compressor and heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910649887.XA CN110319017A (en) | 2019-07-18 | 2019-07-18 | Crankshaft group, pump assembly, compressor and heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319017A true CN110319017A (en) | 2019-10-11 |
Family
ID=68123920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910649887.XA Pending CN110319017A (en) | 2019-07-18 | 2019-07-18 | Crankshaft group, pump assembly, compressor and heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110319017A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59165885A (en) * | 1983-03-09 | 1984-09-19 | Matsushita Refrig Co | Rotary compressor with multiple cylinders |
| CN1299011A (en) * | 2000-09-30 | 2001-06-13 | 上海日立电器有限公司 | Multi-cylinder compressor and method for manufacturing accentric shaft |
| US20020182086A1 (en) * | 2001-06-01 | 2002-12-05 | Lg Electronics Inc. | Dual capacity compressor |
| CN105134604A (en) * | 2015-09-17 | 2015-12-09 | 广东美芝制冷设备有限公司 | Core adjusting method of compression mechanism part |
| CN105179234A (en) * | 2015-09-29 | 2015-12-23 | 中国石油天然气股份有限公司 | Gas-liquid mixed transportation device |
-
2019
- 2019-07-18 CN CN201910649887.XA patent/CN110319017A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59165885A (en) * | 1983-03-09 | 1984-09-19 | Matsushita Refrig Co | Rotary compressor with multiple cylinders |
| CN1299011A (en) * | 2000-09-30 | 2001-06-13 | 上海日立电器有限公司 | Multi-cylinder compressor and method for manufacturing accentric shaft |
| US20020182086A1 (en) * | 2001-06-01 | 2002-12-05 | Lg Electronics Inc. | Dual capacity compressor |
| CN105134604A (en) * | 2015-09-17 | 2015-12-09 | 广东美芝制冷设备有限公司 | Core adjusting method of compression mechanism part |
| CN105179234A (en) * | 2015-09-29 | 2015-12-23 | 中国石油天然气股份有限公司 | Gas-liquid mixed transportation device |
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