CN104963870A - Exhaust bearing block, screw compressor and air conditioning unit - Google Patents
Exhaust bearing block, screw compressor and air conditioning unit Download PDFInfo
- Publication number
- CN104963870A CN104963870A CN201510449484.2A CN201510449484A CN104963870A CN 104963870 A CN104963870 A CN 104963870A CN 201510449484 A CN201510449484 A CN 201510449484A CN 104963870 A CN104963870 A CN 104963870A
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- China
- Prior art keywords
- exhaust
- shaft bearing
- cavity
- exhaust shaft
- relief opening
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- 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
- 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
- F04C29/02—Lubrication; Lubricant separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relate to an exhaust bearing block, a screw compressor and an air conditioning unit, wherein the exhaust bearing block comprises an exhaust cavity, an exhaust hole is formed in the exhaust cavity, the exhaust cavity is configured to have a plurality of turning structures, exhaust air flow can change directions for a plurality of times in the exhaust cavity, and finally is exhausted from the exhaust hole, the opening of the exhaust hole is designed in such a way that under the condition that the exhaust bearing block is covered by a shell, gas exhausted from the exhaust hole has components flowing in a rotating manner along the inner wall of the shell and around the axis of the shell. The exhaust bearing block can play the role of improving the oil separation efficiency from multiple aspects, including centrifugal effect, uniform flow field, impacting separation and the like.
Description
Technical field
The present invention relates to compressor field, particularly relate to a kind of exhaust shaft bearing, helical-lobe compressor and air-conditioner set.
Background technique
In helical-lobe compressor, discharge end bearings seat is absolutely necessary structure, plays fixed rotor exhaust end, provides guiding valve oil pocket, provides exhaust passage, the effect such as fixing oil content filter screen.Exhaust shaft bearing generally there are male rotor bearing bore, female rotor bearing bore, guiding valve oil pocket and exhaust cavity, have oil return circuit and oil feeding line etc. in addition.
As shown in Figure 1, in exhaust shaft bearing 2 ' is located at by oil content barrel 1 ', the general axially open of exhaust cavity 3 ' in exhaust shaft bearing 2 ', oil content filter screen 4 ' is provided with in oil content barrel 1 ', along airflow direction, relief opening 5 ' due to oil content barrel 1 ' is arranged on the upstream of oil content filter screen 4 ', and therefore, exhaust cavity 3 ' is general also connects the downstream of one section of outlet pipe 6 ' to oil content filter screen 4 '.The cold media air that outlet pipe 6 ' is discharged, back through after oil content filter screen 4 ', discharges compressor by relief opening 5 '.
The exhaust cavity opening of exhaust shaft bearing of the prior art is all axially, its position by the top or below, refrigerant is out difficult to discharge relief opening again through oil content filter screen uniformly from exhaust cavity or outlet pipe afterwards, thus has influence on the oil content efficiency of oil content filter screen.
Summary of the invention
The object of the invention is to propose a kind of exhaust shaft bearing, helical-lobe compressor and air-conditioner set, it can uniform flow field, improves oil content efficiency.
For achieving the above object, the invention provides a kind of exhaust shaft bearing, it comprises exhaust cavity, described exhaust cavity is provided with relief opening, described exhaust cavity is configured to have multiple turning structure, exhaust airstream repeatedly can change direction in described exhaust cavity, finally discharge from described relief opening, the opening of described relief opening is towards such setting, namely, when described exhaust shaft bearing is located in housing, make the gas of being discharged by described relief opening have inwall along described housing and do the component of rotational flow around the axis of described housing.
One preferably or in embodiment, the opening of described relief opening is oriented the radial direction along the guiding valve oil pocket in described exhaust shaft bearing.
One preferably or in embodiment, described exhaust cavity comprises the first row air cavity and second row air cavity that are interconnected, and described first row air cavity is arranged along the axis of described guiding valve oil pocket, and described second row air cavity is configured to have several turning structure.
One preferably or in embodiment, described second row air cavity comprises the first chamber that the radial direction along described guiding valve oil pocket is arranged and the second chamber arranged along the axis of described guiding valve oil pocket, first row air cavity described in described first chamber and described second chamber, exhaust airstream flows through the first chamber described in radial inflow after described first row air cavity vertically, then axially flow into described second chamber, again change direction finally by described relief opening and flow out.
One preferably or in embodiment, described second row air cavity is arranged on the side of guiding valve oil pocket in described exhaust shaft bearing and male rotor bearing bore.
One preferably or in embodiment, the guiding valve oil pocket in described exhaust shaft bearing and the side of male rotor bearing bore, and the side of guiding valve oil pocket in described exhaust shaft bearing and female rotor bearing bore, be equipped with described second row air cavity.
One preferably or in embodiment, described relief opening on each described second row air cavity is towards such setting, namely, when described exhaust shaft bearing is located in housing, exhaust airstream can be promoted along the inwall of described housing and axis around described housing does rotational flow.
For achieving the above object, present invention also offers a kind of helical-lobe compressor, it comprises oil content barrel, also comprises the exhaust shaft bearing in above-mentioned any embodiment, in described exhaust shaft bearing is located at by described oil content barrel.
One preferably or in embodiment, be provided with oil content filter structure in described oil content barrel, exhaust airstream is after described relief opening is discharged, and after described oil content filter structured filter, the oil content barrel relief opening arranged from described oil content barrel is discharged.
For achieving the above object, present invention also offers a kind of air-conditioner set, it comprises the helical-lobe compressor in above-mentioned any embodiment.
Based on technique scheme, the present invention at least has following beneficial effect:
Exhaust shaft bearing provided by the invention, its exhaust cavity is configured to have multiple turning structure, and exhaust airstream repeatedly changes flow direction in exhaust cavity, clashes into exhaust cavity internal face, can improve oil content efficiency, and the repeatedly change of flow direction contributes to slowing down vibration and noise; After exhaust airstream is discharged from relief opening, under the restriction of effect of inertia and housing, exhaust airstream will circle along inner walls, can uniform flow field, and in circular movement process, oil droplet larger in exhaust airstream under centrifugal action can be thrown on shell wall side, improves oil content efficiency further.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of compressor of the prior art;
Fig. 2 is the external structure schematic diagram of exhaust shaft bearing provided by the invention;
Fig. 3 is another external structure schematic diagram of exhaust shaft bearing provided by the invention;
Fig. 4 is the axial cross-sectional schematic of exhaust shaft bearing provided by the invention;
Fig. 5 is that the A-A of Fig. 4 is to cross-sectional schematic;
Fig. 6 is the first schematic diagram of gas flow in exhaust shaft bearing provided by the invention;
Fig. 7 is the second schematic diagram of gas flow in exhaust shaft bearing provided by the invention;
Fig. 8 is the axial cross-sectional schematic after exhaust shaft bearing provided by the invention and oil content barrel assemble;
Fig. 9 is the radial cross-sectional schematic after exhaust shaft bearing provided by the invention and oil content barrel assemble.
Attached number in the figure:
1 '-oil content barrel; 2 '-exhaust shaft bearing; 3 '-exhaust cavity; 4 '-oil content filter screen; 5 '-relief opening; 6 '-outlet pipe;
10-exhaust shaft bearing; 11-male rotor bearing bore; 12-female rotor bearing bore; 13-guiding valve oil pocket; 14-first row air cavity; 15-second row air cavity; 16-relief opening;
20-oil content barrel; 21-oil content barrel relief opening; 30-oil content filter structure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limiting the scope of the invention can not be interpreted as.
As shown in Figure 2-5, be the schematic diagram embodiment of exhaust shaft bearing provided by the invention, in this illustrative examples, exhaust shaft bearing 10 comprises male rotor bearing bore 11, female rotor bearing bore 12, guiding valve oil pocket 13 and exhaust cavity.Exhaust cavity is configured to have multiple turning structure, exhaust airstream repeatedly can change direction in exhaust cavity, finally discharge from relief opening 16, exhaust airstream repeatedly changes flow direction in exhaust cavity, clash into exhaust cavity internal face, can improve oil content efficiency, and the repeatedly change of exhaust airstream flow direction contributes to slowing down vibration and noise, plays the effect of vibration and noise reducing.
The opening of relief opening 16, towards such setting, namely when exhaust shaft bearing is located in housing, makes the gas of being discharged by relief opening 16 have inwall along housing and does the component of rotational flow around the axis of housing.After exhaust airstream is discharged from relief opening 16, under the restriction of effect of inertia and housing, exhaust airstream will circle along inner walls, can uniform flow field, and in circular movement process, oil droplet larger in exhaust airstream under centrifugal action can be thrown on shell wall side, thus serves the effect of oil content.
Alternatively, the opening of relief opening 16 is the radial direction along guiding valve oil pocket 13, and its opening is towards being roughly the circumferencial direction coaxial with oil content barrel 20, after exhaust airstream is discharged from relief opening 16, has the inertia that the axis around oil content barrel 20 moves in a circle.
Exhaust shaft bearing 10 provided by the invention is at least separated three aspects from centrifugal action, uniform flow field and shock, plays the effect improving oil content efficiency.
As shown in Figure 3, exhaust cavity can comprise first row air cavity 14 and second row air cavity 15, first row air cavity 14 is arranged along the axis of the guiding valve oil pocket 13 in exhaust shaft bearing 10, second row air cavity 15 is communicated with first row air cavity 14, and second row air cavity 15 is provided with relief opening 16, so that the discharge of exhaust airstream.Second row air cavity 15 is configured to have several turning structure, direction can be changed after exhaust airstream flows through first row air cavity 14 vertically and flow into second row air cavity 15, in second row air cavity 15 each turning structure effect under, exhaust airstream repeatedly can change direction in second row air cavity 15, finally discharges from relief opening 16.
Turning structure in second row air cavity 15 can arrange one or more, enumerates the illustrative examples arranging a turning structure in second row air cavity 15 below.
As shown in Figure 6, Figure 7, one preferably or in embodiment, second row air cavity 15 comprises the first chamber that the radial direction along guiding valve oil pocket 13 is arranged and the second chamber arranged along the axis of guiding valve oil pocket 13, there is between first chamber and the second chamber a turning structure, first chamber first row air cavity 14 and the second chamber, exhaust airstream flows through rear radial inflow first chamber of first row air cavity 14 vertically, then axially flows into the second chamber, again changes direction flow out finally by relief opening 16.
The exhaust shaft bearing provided in the present embodiment at least has two major features: one be relief opening 16 towards exhaust airstream can being promoted to have inwall along housing and doing the component of rotational flow around the axis of housing, or opening is specially radial opening; Two is flow direction transformations that energy directing exhaust gas air-flow produces totally three times, as follows:
First exhaust airstream enters exhaust shaft bearing, and flow direction is the axis along guiding valve oil pocket 13, then due to the stop of guiding valve oil pocket 13 bottom wall, turns to the Radial Flow along guiding valve oil pocket 13, and the change of first time flow direction occurs;
As shown in Figure 6, due to the stop of exhaust cavity inside turn structure after Radial Flow, enter the runner of axial second row air cavity 15, there occurs the change of second time flow direction, direction becomes axis from radial direction, and the change of second time flow direction occurs;
As shown in Figure 7, finally in the middle of second row air cavity 15, become Radial Flow from the flowing of axis, discharge relief opening 16, there occurs the change of third time flow direction.
In above-described embodiment, the change of flow direction contributes to slowing down vibration and noise, play the effect of vibration and noise reducing, and exhaust airstream is after relief opening 16 is discharged, move in a circle in process, oil droplet larger in exhaust airstream under centrifugal action is thrown on shell wall side, thus serves the effect of oil content, improves oil content efficiency.
Because guiding valve oil pocket 13 is relative with the sidepiece space in the axial direction of male rotor bearing bore 11 larger, therefore, second row air cavity 15 can be arranged on the side of guiding valve oil pocket 13 in exhaust shaft bearing 10 and male rotor bearing bore 11.
Or, move at housing inner circumference in order to the air-flow making relief opening 16 discharge is more uniform, guiding valve oil pocket 13 in exhaust shaft bearing 10 and the side of male rotor bearing bore 11, and the side of guiding valve oil pocket 13 in exhaust shaft bearing 10 and female rotor bearing bore 12, be equipped with second row air cavity 15.
Further, the relief opening 16 on each second row air cavity 15, towards such setting, namely when exhaust shaft bearing 10 is located in housing, can promote that exhaust airstream does rotational flow along the inwall of housing and around the axis of housing.
In sum, exhaust shaft bearing 10 provided by the invention, its exhaust cavity can make exhaust airstream repeatedly change sense of rotation, and relief opening 16 opening can make air-flow circle along housing, oil content efficiency is improved from many aspects such as centrifugal action, uniform flow field, shock separation, and exhaust shaft bearing 10 provided by the invention is cast and machine adds conveniently, improves use advantage when not increasing cost.
Exhaust shaft bearing 10 provided by the invention can be applied on helical-lobe compressor.
As shown in Figure 8, Figure 9, in the illustrative examples of helical-lobe compressor provided by the invention, helical-lobe compressor comprises oil content barrel 20, also comprises the exhaust shaft bearing 10 in above-mentioned any embodiment, in exhaust shaft bearing 10 is located at by oil content barrel 20.Be provided with oil content filter structure 30 in oil content barrel 20, exhaust airstream is after relief opening 16 is discharged, and after oil content filter structure 30 is filtered, the oil content barrel relief opening 21 arranged from oil content barrel 20 is discharged.
In above-described embodiment, exhaust shaft bearing 10 is positioned at oil content barrel 20, and the rear trip of exhaust shaft bearing 10 is oil content filter structures 30, and after oil content filter structure 30, trip arranges oil content barrel relief opening 21.After refrigerant is discharged from exhaust shaft bearing 10, after oil content filter structure 30 is filtered, discharge compressor from oil content barrel relief opening 21.
First cold media air discharges through the relief opening 16 of exhaust shaft bearing 10, and under the restriction of effect of inertia and oil content barrel 20, refrigerant will circle along oil content barrel 20 inwall.In circular movement process, oil droplet larger in cold media air under centrifugal action is thrown on the wall of oil content barrel 20, thus serves the effect of oil content, and this effect is similar revolves sub-agencies for separating of oil droplet.
After centrifugation oil droplet, refrigerant is separated less oil droplet further by oil content filter structure 30.In contrast to exhaust shaft bearing 10 of the prior art, radial exhaust makes refrigerant flowing thread lengthen, and flow field is able to mix more uniformly, and each parameter is more even; Under the conditions such as identical pressure, flow velocity, temperature, evenly then oil content efficiency is higher for flow velocity.
In above-described embodiment, oil content filter structure 30 can adopt oil content filter screen etc.
Helical-lobe compressor provided by the invention can be applied on air-conditioner set.
In the illustrative examples of air-conditioner set provided by the invention, air-conditioner set comprises above-mentioned helical-lobe compressor, helical-lobe compressor comprises exhaust shaft bearing 10 provided by the invention, therefore, air-conditioner set provided by the invention and helical-lobe compressor possess the beneficial effect of exhaust shaft bearing 10 provided by the invention accordingly.
In describing the invention; it will be appreciated that; the word such as " first ", " second " is used to limit component; be only used to be convenient to distinguish above-mentioned parts; as there is no Stated otherwise; above-mentioned word does not have particular meaning, therefore can not be interpreted as limiting the scope of the invention.
Finally should be noted that: above embodiment is only in order to illustrate that technological scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technological scheme scope of request of the present invention protection.
Claims (10)
1. an exhaust shaft bearing, comprise exhaust cavity, described exhaust cavity is provided with relief opening (16), it is characterized in that: described exhaust cavity is configured to have multiple turning structure, exhaust airstream repeatedly can change direction in described exhaust cavity, finally discharge from described relief opening (16), the opening of described relief opening (16) is towards such setting, namely when described exhaust shaft bearing is located in housing, make the gas of being discharged by described relief opening (16) have inwall along described housing and do the component of rotational flow around the axis of described housing.
2. exhaust shaft bearing as claimed in claim 1, is characterized in that: the opening of described relief opening (16) is oriented the radial direction along the guiding valve oil pocket (13) in described exhaust shaft bearing.
3. exhaust shaft bearing as claimed in claim 1, it is characterized in that: described exhaust cavity comprises the first row air cavity (14) and second row air cavity (15) that are interconnected, described first row air cavity (14) is arranged along the axis of described guiding valve oil pocket (13), and described second row air cavity (15) is configured to have several turning structure.
4. exhaust shaft bearing as claimed in claim 3, it is characterized in that: described second row air cavity (15) comprises the first chamber that the radial direction along described guiding valve oil pocket (13) is arranged and the second chamber arranged along the axis of described guiding valve oil pocket (13), first row air cavity (14) described in described first chamber and described second chamber, exhaust airstream flows through described first row air cavity (14) the first chamber described in radial inflow afterwards vertically, then axially flow into described second chamber, again change direction finally by described relief opening (16) and flow out.
5. exhaust shaft bearing as claimed in claim 3, is characterized in that: described second row air cavity (15) is arranged on the side of guiding valve oil pocket (13) in described exhaust shaft bearing and male rotor bearing bore (11).
6. exhaust shaft bearing as claimed in claim 3, it is characterized in that: the guiding valve oil pocket (13) in described exhaust shaft bearing and the side of male rotor bearing bore (11), and the side of guiding valve oil pocket (13) in described exhaust shaft bearing and female rotor bearing bore (12), be equipped with described second row air cavity (15).
7. exhaust shaft bearing as claimed in claim 6, it is characterized in that: the described relief opening (16) on each described second row air cavity (15) is towards such setting, namely, when described exhaust shaft bearing is located in housing, exhaust airstream can be promoted along the inwall of described housing and axis around described housing does rotational flow.
8. a helical-lobe compressor, comprise oil content barrel (20), it is characterized in that: also comprise the exhaust shaft bearing (10) as described in any one of claim 1-7, in described exhaust shaft bearing (10) is located at by described oil content barrel (20).
9. helical-lobe compressor as claimed in claim 8, it is characterized in that: in described oil content barrel (20), be provided with oil content filter structure (30), exhaust airstream is after described relief opening (16) is discharged, after described oil content filter structure (30) is filtered, the oil content barrel relief opening (21) arranged from described oil content barrel (20) is discharged.
10. an air-conditioner set, is characterized in that: comprise helical-lobe compressor as claimed in claim 8 or 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510449484.2A CN104963870A (en) | 2015-07-27 | 2015-07-27 | Exhaust bearing block, screw compressor and air conditioning unit |
| PCT/CN2016/088869 WO2017016378A1 (en) | 2015-07-27 | 2016-07-06 | Exhaust bearing housing, screw compressor and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510449484.2A CN104963870A (en) | 2015-07-27 | 2015-07-27 | Exhaust bearing block, screw compressor and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104963870A true CN104963870A (en) | 2015-10-07 |
Family
ID=54217924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510449484.2A Pending CN104963870A (en) | 2015-07-27 | 2015-07-27 | Exhaust bearing block, screw compressor and air conditioning unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104963870A (en) |
| WO (1) | WO2017016378A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508439A (en) * | 2016-01-04 | 2016-04-20 | 珠海格力电器股份有限公司 | Screw machine and exhaust bearing pedestal assembly thereof |
| WO2017016378A1 (en) * | 2015-07-27 | 2017-02-02 | 珠海格力电器股份有限公司 | Exhaust bearing housing, screw compressor and air conditioning unit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704481B (en) * | 2022-05-23 | 2024-01-12 | 山东省章丘鼓风机股份有限公司 | Centrifugal fan capable of preventing oil leakage in high-pressure area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654987A (en) * | 1979-10-11 | 1981-05-15 | Hitachi Ltd | Screw compressor |
| JP2000009074A (en) * | 1998-06-24 | 2000-01-11 | Hitachi Ltd | Screw compressor |
| CN104265634A (en) * | 2014-09-19 | 2015-01-07 | 珠海格力电器股份有限公司 | Exhaust bearing pedestal, screw compressor and air conditioning unit |
| CN104295501A (en) * | 2014-09-19 | 2015-01-21 | 珠海格力电器股份有限公司 | Exhaust structure of compressor, screw compressor and air conditioner unit |
| CN204877955U (en) * | 2015-07-27 | 2015-12-16 | 珠海格力电器股份有限公司 | Exhaust bearing frame, helical -lobe compressor and air conditioning unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2401338B1 (en) * | 1977-06-17 | 1980-03-14 | Cit Alcatel | |
| CN104963870A (en) * | 2015-07-27 | 2015-10-07 | 珠海格力电器股份有限公司 | Exhaust bearing block, screw compressor and air conditioning unit |
-
2015
- 2015-07-27 CN CN201510449484.2A patent/CN104963870A/en active Pending
-
2016
- 2016-07-06 WO PCT/CN2016/088869 patent/WO2017016378A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654987A (en) * | 1979-10-11 | 1981-05-15 | Hitachi Ltd | Screw compressor |
| JP2000009074A (en) * | 1998-06-24 | 2000-01-11 | Hitachi Ltd | Screw compressor |
| CN104265634A (en) * | 2014-09-19 | 2015-01-07 | 珠海格力电器股份有限公司 | Exhaust bearing pedestal, screw compressor and air conditioning unit |
| CN104295501A (en) * | 2014-09-19 | 2015-01-21 | 珠海格力电器股份有限公司 | Exhaust structure of compressor, screw compressor and air conditioner unit |
| CN204877955U (en) * | 2015-07-27 | 2015-12-16 | 珠海格力电器股份有限公司 | Exhaust bearing frame, helical -lobe compressor and air conditioning unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017016378A1 (en) * | 2015-07-27 | 2017-02-02 | 珠海格力电器股份有限公司 | Exhaust bearing housing, screw compressor and air conditioning unit |
| CN105508439A (en) * | 2016-01-04 | 2016-04-20 | 珠海格力电器股份有限公司 | Screw machine and exhaust bearing pedestal assembly thereof |
| CN105508439B (en) * | 2016-01-04 | 2018-10-19 | 珠海格力电器股份有限公司 | Screw machine and its exhaust shaft bearing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017016378A1 (en) | 2017-02-02 |
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Application publication date: 20151007 |
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