CN207349099U - Flange, the pump housing and compressor - Google Patents

Flange, the pump housing and compressor Download PDF

Info

Publication number
CN207349099U
CN207349099U CN201721305088.3U CN201721305088U CN207349099U CN 207349099 U CN207349099 U CN 207349099U CN 201721305088 U CN201721305088 U CN 201721305088U CN 207349099 U CN207349099 U CN 207349099U
Authority
CN
China
Prior art keywords
passage
flange
groove
exhaust passage
entrance
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.)
Active
Application number
CN201721305088.3U
Other languages
Chinese (zh)
Inventor
陈恩峥
蓝榕江
梁世顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai, Zhuhai Landa Compressor Co Ltd filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201721305088.3U priority Critical patent/CN207349099U/en
Application granted granted Critical
Publication of CN207349099U publication Critical patent/CN207349099U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Compressor (AREA)

Abstract

The utility model provides a kind of flange, the pump housing and compressor, wherein, flange includes:Body;Exhaust passage, is arranged on body, and exhaust passage is used to connect with the compression chamber of cylinder;Oil drain passage, is arranged on body, and the entrance of oil drain passage is connected with exhaust passage, and the outlet of oil drain passage is connected with the exterior of body.By technical solution provided by the utility model, it can solve the problems, such as that the lubricating oil in the prior art in compressor is easily taken away by refrigerant.

Description

Flange, the pump housing and compressor
Technical field
Compressor Technology field is the utility model is related to, in particular to a kind of flange, the pump housing and compressor.
Background technology
The operation principle of spinning rollers compressor is:Bent axle drives roller to do eccentric circular motion in cylinder, roller and Compression chamber in cylinder has been divided into high-pressure area and area of low pressure by the slide plate for abutting against roller, and bent axle drives roller will when rotating Refrigerant sucks area of low pressure and is discharged from high-pressure area, so as to fulfill the compression to refrigerant.In the exhaust passage and cylinder of flange High-pressure area connection, the exhaust passage that the refrigerant in high-pressure area passes through flange discharges.
Compressor operationally, can gather lubricating oil on flange, after lubricating oil excessively covers exhaust passage, through overcompression Refrigerant in discharge to a part of lubricating oil can be taken to the outside of compressor, this will cause the oil content in refrigerant excessive.And The excessive refrigeration effect that can reduce compressor of oil content in refrigerant.Moreover, take a part of lubricating oil to outside compressor meeting Reduce the lubricant effect inside compressor.
Utility model content
The utility model provides a kind of flange, the pump housing and compressor, to solve the lubrication in compressor in the prior art The problem of oil is easily taken away by refrigerant.
To solve the above-mentioned problems, one side according to the present utility model, the utility model provide a kind of flange, bag Include:Body;Exhaust passage, is arranged on body, and exhaust passage is used to connect with the compression chamber of cylinder;Oil drain passage, is arranged on On body, the entrance of oil drain passage is connected with exhaust passage, and the outlet of oil drain passage is connected with the exterior of body.
Further, body further includes:Groove, is arranged on body, and the outlet of exhaust passage is connected with the slot bottom of groove, The entrance of exhaust passage is located at the end face of body, and the entrance of oil drain passage is connected with groove, and groove is used to set valve block.
Further, the notch of the entrance of exhaust passage and groove is located on two end faces that body is oppositely arranged respectively, The entrance of oil drain passage is between the entrance of exhaust passage and the notch of groove.
Further, oil drain passage has multiple outlets, and multiple outlets are positioned at the end face and/or side of body.
Further, oil drain passage includes:First passage, the entrance of first passage are connected with groove, and first passage goes out Mouth is located at the side of body;Second channel, the entrance of second channel are connected with first passage, and the outlet of second channel is located at body End face.
Further, there is angle, second channel has two between the axis of second channel and the axis of first passage Outlet, two outlets of second channel are located on two end faces that body is oppositely arranged respectively.
Further, body is loop configuration, and first passage extends along the radial direction of loop configuration, and second channel is along ring The axial direction extension of shape structure.
Another aspect according to the present utility model, there is provided a kind of pump housing, including cylinder, flange and valve block, flange and gas Cylinder connects, and the exhaust passage of flange is connected with the compression chamber of cylinder, and valve block can be opened and closed to be arranged on the exit of exhaust passage, its In, flange is the flange of above-mentioned offer.
Further, the pump housing includes two cylinders, and two cylinders are arranged at intervals, and flange is connected with a cylinder, and the pump housing is also Including bent axle, two cylinders, flanges are sequentially threaded through on bent axle.
Another aspect according to the present utility model, there is provided a kind of compressor, including the pump housing, wherein, the pump housing carries to be above-mentioned The pump housing of confession.
Using the technical solution of the utility model, due to being provided with oil drain passage on body, and oil drain passage enters Mouth is connected with exhaust passage, and the outlet of oil drain passage is connected with the exterior of body, and the lubricating oil on such flange flows to exhaust The outside of body can be flowed to during the outlet port of passage by oil drain passage, i.e. the outlet port of exhaust passage will not gather lubrication Oil.So refrigerant will not take away lubricating oil when being discharged from exhaust passage from flange, so as to reduce the oil-containing in refrigerant Amount, and then the refrigeration effect of compressor can be improved.Moreover, such a set-up mode can make more lubricating oil stay in compressor Inside, to improve the lubricant effect to the parts inside compressor.
Brief description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality New schematic description and description is used to explain the utility model, does not form the improper restriction to the utility model. In the accompanying drawings:
Fig. 1 shows the structure diagram of flange provided by the utility model;
Fig. 2 shows sectional view of the flange in Fig. 1 in A-A positions;
Fig. 3 shows the structure diagram of the pump housing provided by the utility model.
Wherein, above-mentioned attached drawing is marked including the following drawings:
10th, body;20th, exhaust passage;30th, oil drain passage;31st, first passage;32nd, second channel;40th, groove;50th, gas Cylinder;60th, valve block;70th, bent axle.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below New and its application or any restrictions used.Based on the embodiment in the utility model, those of ordinary skill in the art are not having All other embodiments obtained under the premise of creative work are made, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the embodiment of the utility model provides a kind of flange, which includes body 10, exhaust Passage 20 and oil drain passage 30.Wherein, exhaust passage 20 is arranged on body 10, and exhaust passage 20 is used for the compression chamber with cylinder Connection.Oil drain passage 30 is arranged on body 10, and the entrance of oil drain passage 30 is connected with exhaust passage 20, oil drain passage 30 Export and connected with the exterior of body 10.
Using the technical solution of the present embodiment, due to being provided with oil drain passage 30, and oil drain passage 30 on body 10 Entrance be connected with exhaust passage 20, the outlet of oil drain passage 30 is connected with the exterior of body 10, the lubrication on such flange Oil stream to exhaust passage 20 outlet port when can flow to the outside of body 10 by oil drain passage 30, i.e. exhaust passage 20 goes out Mouth position will not gather lubricating oil.So refrigerant will not take away lubricating oil when being discharged from exhaust passage 20 from flange, so that The oil content in refrigerant can be reduced, and then the refrigeration effect of compressor can be improved.Moreover, such a set-up mode can make more More lubricating oil are stayed in inside compressor, to improve the lubricant effect to the parts inside compressor.
Moreover, the positions and dimensions of oil drain passage 30 are arranged to suitably be worth, corresponding frequencies section on flange can be reduced Noise, so as to reduce the noise pollution of compressor.It is usually provided with muffler on flange to be used to reduce noise, due to refrigerant Lubricating oil will not be taken away from flange in discharge, therefore impact of the lubricating oil to muffler can be reduced, so as to extend The service life of muffler.
The outlet port of exhaust passage 20 is usually provided with valve block, and going out for exhaust passage 20 can be opened or be closed to valve block Mouthful.Can be open-top by valve block when the pressure of refrigerant in cylinder exceedes certain value, so that refrigerant can discharge.By setting valve block can So that refrigerant reaches predetermined pressure.
As shown in Fig. 2, body 10 further includes groove 40, groove 40 is arranged on body 10, the outlet of exhaust passage 20 with The slot bottom connection of groove 40, the entrance of exhaust passage 20 are located at the end face of body 10, and entrance and the groove 40 of oil drain passage 30 connect Logical, groove 40 is used to set valve block.By setting groove 40 easy to the installation of valve block on body 10 and compressor can be made More compact structure.However, due to the presence of groove 40, the lubricating oil on flange is easily accumulated in groove 40.In the application In, since the entrance of oil drain passage 30 is connected with groove 40, the lubricating oil flowed into groove 40 can pass through oil drain passage 30 It is discharged to the outside of body 10.Lubricating oil will not be so gathered in groove 40, so that refrigerant is from the outlet of exhaust passage 20 The lubricating oil in groove 40 will not be taken away during discharge.The oil content in refrigerant can be so reduced, so as to improve compression The refrigeration effect of machine, but also more lubricating oil can be made to stay in inside compressor, so as to improve to zero inside compressor The lubricant effect of component.
In the present embodiment, the notch of the entrance of exhaust passage 20 and groove 40 is located at body 10 is oppositely arranged two respectively On a end face, the entrance of oil drain passage 30 is located between the entrance of exhaust passage 20 and the notch of groove 40.Being arranged such to make Oil drain passage 30 neither influences the exhaust of exhaust passage 20, and can guarantee that and discharge the lubricating oil in groove 40.It is recessed in order to prevent The entrance of exhaust passage 20, can be arranged on the slot bottom of groove 40, by the lubricating oil in groove 40 by accumulation lubricating oil in groove 40 All it is discharged to the outside of body 10.
In order to improve the discharge effect of lubricating oil, multiple outlets can be set on oil drain passage 30, multiple outlets can be with It is arranged on the end face of body 10, can also be arranged on the side of body 10, can also be on the end face and side of body 10 Outlet is set respectively.By setting multiple outlets, the discharge of the lubricating oil in groove 40 can be accelerated, so as to prevent in groove 40 Gather lubricating oil.
As shown in Fig. 2, oil drain passage 30 includes first passage 31 and second channel 32.Wherein, the entrance of first passage 31 Connected with groove 40, the outlet of first passage 31 is positioned at the side of body 10.The entrance of second channel 32 connects with first passage 31 Logical, the outlet of second channel 32 is positioned at the end face of body 10.It is arranged such outlet and second channel that can be by first passage 31 32 outlet is at the same time to exterior removal of lubricant, consequently facilitating the discharge of lubricating oil.The lubricating oil of discharge can be back to compression In the oil sump of motor spindle, recycling for lubricating oil is realized.
Specifically, there is angle, and second channel 32 between the axis of the axis of second channel 32 and first passage 31 With two outlets, two outlets of second channel 32 are located on two end faces that body 10 is oppositely arranged respectively.So set, The lubricating oil in groove 40 can be made outwards to be arranged at the same time by the one outlet of first passage 31 and two outlets of second channel 32 Go out, but also can discharge from different directions, can so discharge and be back in oil sump in order to lubricating oil, prevent groove 40 Interior accumulation lubricating oil, so as to prevent refrigerant from taking away lubricating oil during discharge.
As shown in Figure 1, body 10 is loop configuration, first passage 31 extends along the radial direction of loop configuration, and second is logical Road 32 extends along the axial direction of loop configuration.First passage 31 is extended along the radial direction of loop configuration, and second is led to Road 32 extends along the axial direction of loop configuration, on the one hand easy to the flowing of lubricating oil, so as to prevent the outlet of exhaust passage 20 Lubricating oil is gathered in position, on the other hand easy to the manufacture of first passage 31, so as to reduce the processing cost of flange.
In the present embodiment, flange further includes extension, and extension is projectedly arranged on the end face of body 10.Body 10 On be provided with through hole, through hole is also equipped with extension, two through holes are connected, through hole be used for wear bent axle.Prolonged by setting Extending portion can improve the stability of crank rotation and the structural strength of stiffening device.
Another embodiment of the utility model provides a kind of pump housing, and the pump housing includes cylinder 50, flange and valve block 60.Its In, flange is connected with cylinder 50, and the exhaust passage 20 of flange is connected with the compression chamber of cylinder 50, and valve block 60 can be opened and closed to be arranged on The exit of exhaust passage 20, moreover, flange is the flange that above-described embodiment provides.
Using the technical solution of the present embodiment, due to being provided with oil drain passage 30, and oil drain passage 30 on body 10 Entrance be connected with exhaust passage 20, the outlet of oil drain passage 30 is connected with the exterior of body 10, the lubrication on such flange Oil stream to exhaust passage 20 outlet port when can flow to the outside of body 10 by oil drain passage 30, i.e. exhaust passage 20 goes out Mouth position will not gather lubricating oil.When the refrigerant in cylinder 50 reaches certain pressure, refrigerant is by exhaust passage 20 and by valve Piece 60 is open-top.Since lubricating oil is not gathered in the outlet port of exhaust passage 20, refrigerant will not be taken away in discharge from flange Lubricating oil, so as to reduce the oil content in refrigerant, and then can improve the refrigeration effect of compressor.Moreover, such a setting Mode can be such that more lubricating oil stay in inside compressor, to improve the lubricant effect to the parts inside compressor.
Valve block 60 can occur impact with flange when opening and closing and produce noise, by the position of oil drain passage 30 and ruler It is very little to be arranged to suitably be worth, the noise of corresponding frequencies section can be reduced, so as to reduce the noise pollution of the pump housing.In order to reduce flange With the noise of valve block 60, muffler can be set on flange, covered valve block 60 by muffler.Skill through this embodiment Art scheme, since refrigerant will not take away lubricating oil in discharge from flange, can reduce lubricating oil and muffler is rushed Hit, so as to extend the service life of muffler.
Further, body 10 further includes groove 40, and groove 40 is arranged on body 10, the outlet of exhaust passage 20 with it is recessed The slot bottom connection of groove 40, the entrance of exhaust passage 20 are located at the end face of body 10, and the entrance of oil drain passage 30 is connected with groove 40, Groove 40 is used to set valve block.By setting groove 40 on body 10 easy to the installation of valve block and the knot of compressor can be made Structure is more compact.However, due to the presence of groove 40, the lubricating oil on flange is easily accumulated in groove 40.In this application, by Connected in the entrance of oil drain passage 30 with groove 40, therefore the lubricating oil flowed into groove 40 can be discharged to by oil drain passage 30 The outside of body 10.Lubricating oil will not be so gathered in groove 40, so that refrigerant from the outlet of exhaust passage 20 when discharging The lubricating oil in groove 40 will not be taken away.
Flange in the present embodiment can have different setting forms, for example, when the pump housing is arranged vertically, can be by flange Upper flange is arranged to, when the pump housing is horizontally disposed, flange can be arranged to left flange or right flange.
Cylinder 50 in the present embodiment could be provided as it is multiple, as shown in figure 3, the pump housing includes two cylinders 50, two gas Cylinder 50 is arranged at intervals, and flange is connected with a cylinder 50.Cylinder 50 is arranged to two, the compression energy to refrigerant can be improved Power, so as to improve the performance of the pump housing and the refrigerating capacity of refrigerant.The pump housing further includes bent axle 70, and two cylinders 50 are sequentially worn with flange It is located on bent axle 70.Drive refrigerant to be flowed in cylinder 50 by the rotation of bent axle 70 and realize the compression of refrigerant.
The another embodiment of the utility model provides a kind of compressor, and compressor includes the pump housing, wherein, the pump housing is above-mentioned The pump housing that embodiment provides.Using the technical solution of the present embodiment, due to being provided with oil drain passage 30 on the body 10 of flange, And the entrance of oil drain passage 30 is connected with exhaust passage 20, the outlet of oil drain passage 30 is connected with the exterior of body 10, this Lubricating oil on sample flange can flow to the outside of body 10 by oil drain passage 30 when flowing to the outlet port of exhaust passage 20, i.e., The outlet port of exhaust passage 20 will not gather lubricating oil.When the refrigerant in cylinder 50 reaches certain pressure, refrigerant passes through row Gas passage 20 is simultaneously open-top by valve block 60.Since lubricating oil is not gathered in the outlet port of exhaust passage 20, refrigerant in discharge not Lubricating oil can be taken away from flange, so as to reduce the oil content in refrigerant, and then the refrigeration effect of compressor can be improved. Moreover, such a set-up mode can be such that more lubricating oil stay in inside compressor, to improve to the parts inside compressor Lubricant effect.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the component and positioned opposite, the digital table of step otherwise illustrated in these embodiments Up to the unlimited the scope of the utility model processed of formula and numerical value.At the same time, it should be appreciated that each shown in attached drawing for the ease of description The size of a part is not to be drawn according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as awarding Weigh part for specification.In shown here and discussion all examples, any occurrence should be construed as merely example Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that:It is similar Label and letter similar terms is represented in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with It need not be further discussed in attached drawing afterwards.
In the description of the utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " horizontal, Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or position relationship be normally based on orientation or position shown in the drawings Relation is put, description the utility model is for only for ease of and simplifies description, in the case where not making conversely explanation, these nouns of locality Do not indicate that and imply that the device of meaning or element there must be specific orientation or with specific azimuth configuration and operation, because This is it is not intended that limitation to scope of protection of the utility model;The noun of locality " inside and outside " refers to the wheel relative to each component in itself Wide is inside and outside.
For the ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be appreciated that spatially relative term is intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second " Corresponding parts to be distinguished, do not have Stated otherwise such as, above-mentioned word does not have particular meaning, therefore it is not intended that to this The limitation of utility model protection scope.

Claims (10)

  1. A kind of 1. flange, it is characterised in that including:
    Body (10);
    Exhaust passage (20), is arranged on the body (10), and the exhaust passage (20) is used to connect with the compression chamber of cylinder;
    Oil drain passage (30), is arranged on the body (10), entrance and the exhaust passage of the oil drain passage (30) (20) it is connected, the outlet of the oil drain passage (30) is connected with the exterior of the body (10).
  2. 2. flange according to claim 1, it is characterised in that the body (10) further includes:
    Groove (40), is arranged on the body (10), the outlet of the exhaust passage (20) and the slot bottom of the groove (40) Connection, the entrance of the exhaust passage (20) are located at the end face of the body (10), the entrance of the oil drain passage (30) and institute Groove (40) connection is stated, the groove (40) is used to set valve block.
  3. 3. flange according to claim 2, it is characterised in that the entrance of the exhaust passage (20) and the groove (40) Two end faces being oppositely arranged respectively positioned at the body (10) of notch on, the entrance of the oil drain passage (30) is positioned at described Between the entrance of exhaust passage (20) and the notch of the groove (40).
  4. 4. flange according to claim 1, it is characterised in that the oil drain passage (30) has multiple outlets, Duo Gesuo Outlet is stated positioned at the end face and/or side of the body (10).
  5. 5. flange according to claim 2, it is characterised in that the oil drain passage (30) includes:
    First passage (31), the entrance of the first passage (31) are connected with the groove (40), the first passage (31) Outlet is positioned at the side of the body (10);
    Second channel (32), the entrance of the second channel (32) are connected with the first passage (31), the second channel (32) outlet is located at the end face of the body (10).
  6. 6. flange according to claim 5, it is characterised in that the axis of the second channel (32) and the first passage (31) there is angle, the second channel (32) has two outlets, and two of the second channel (32) go out between axis Mouth is respectively on two end faces that the body (10) is oppositely arranged.
  7. 7. flange according to claim 5, it is characterised in that the body (10) is loop configuration, the first passage (31) extend along the radial direction of the loop configuration, the second channel (32) is prolonged along the axial direction of the loop configuration Stretch.
  8. 8. a kind of pump housing, including cylinder (50), flange and valve block (60), the flange are connected with the cylinder (50), the method Blue exhaust passage (20) is connected with the compression chamber of the cylinder (50), and the valve block (60) can be opened and closed to be arranged on the exhaust The exit of passage (20), it is characterised in that flange of the flange any one of claim 1 to 7.
  9. 9. the pump housing according to claim 8, it is characterised in that the pump housing includes two cylinders (50), two gas Cylinder (50) is arranged at intervals, and the flange is connected with a cylinder (50), and the pump housing further includes bent axle (70), described in two Cylinder (50), the flange are sequentially threaded through on the bent axle (70).
  10. 10. a kind of compressor, including the pump housing, it is characterised in that the pump housing is the pump housing described in claim 8 or 9.
CN201721305088.3U 2017-10-10 2017-10-10 Flange, the pump housing and compressor Active CN207349099U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721305088.3U CN207349099U (en) 2017-10-10 2017-10-10 Flange, the pump housing and compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721305088.3U CN207349099U (en) 2017-10-10 2017-10-10 Flange, the pump housing and compressor

Publications (1)

Publication Number Publication Date
CN207349099U true CN207349099U (en) 2018-05-11

Family

ID=62358479

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721305088.3U Active CN207349099U (en) 2017-10-10 2017-10-10 Flange, the pump housing and compressor

Country Status (1)

Country Link
CN (1) CN207349099U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107676268A (en) * 2017-10-10 2018-02-09 珠海凌达压缩机有限公司 Flange, the pump housing and compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107676268A (en) * 2017-10-10 2018-02-09 珠海凌达压缩机有限公司 Flange, the pump housing and compressor

Similar Documents

Publication Publication Date Title
CN109891097A (en) Screw compressor with part-load capacity
EP3690248A1 (en) Oil line structure of compressor and compressor
CN207349099U (en) Flange, the pump housing and compressor
CN105889075B (en) Compressor assembly and apply its air-conditioning and refrigerating plant
CN105179914B (en) A kind of lubricating oil pump
CN205858673U (en) Compressor and there is its air-conditioner
CN206917862U (en) Oil baffle and compressor
CN102032141B (en) Vertical non-oil-contamination energy-saving vacuum pump
WO2019134364A1 (en) Compressor crankshaft and compressor having same
CN207111430U (en) Bent axle, rolling rotor-type micro-compressor and refrigeration system
CN105649983A (en) Air compressor pump
CN101871450A (en) Small-flow high-lift radial piston pump
CN105952643B (en) Compressor and there is its air conditioner
CN107676268A (en) Flange, the pump housing and compressor
CN206903866U (en) Pump assembly, fluid machinery and heat transmission equipment
CN204827927U (en) Oil -gas separation formula air condition compressor
US11319957B2 (en) Scroll compressor and vehicle having the same
CN103410736A (en) Low-backpressure rotary compressor and refrigeration equipment adopting same
CN203404088U (en) Low-backpressure rotary compressor and refrigeration equipment provided with same
CN209458123U (en) Crankshaft and rotor-type compressor
JP2013015069A (en) Oil separator and compressor having the same
CN207178149U (en) Bent axle and there is its compressor
CN112483358B (en) Oil return structure, compressor and refrigerator
CN206801866U (en) A kind of compressor
CN220791502U (en) Sliding vane compressor with oil drainage channel

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant