CN204113657U - A kind of compressor being furnished with loss of weight crankshaft cam - Google Patents
A kind of compressor being furnished with loss of weight crankshaft cam Download PDFInfo
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- CN204113657U CN204113657U CN201420579794.7U CN201420579794U CN204113657U CN 204113657 U CN204113657 U CN 204113657U CN 201420579794 U CN201420579794 U CN 201420579794U CN 204113657 U CN204113657 U CN 204113657U
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- lightening hole
- metal
- bent axle
- oil groove
- oil
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Abstract
The utility model discloses a kind of compressor being furnished with loss of weight crankshaft cam, belong to Compressor Technology field.Casing of the present utility model is built with driving mechanism and compressing mechanism, this compressing mechanism is made up of bent axle, cylinder, lower bearing and upper bearing (metal), bent axle is provided with crankshaft cam, the center of bent axle is provided with pump oilhole, the both ends of the surface of crankshaft cam are radial is respectively provided with the lower oil guiding hole and upper oil guiding hole that are communicated with pump oilhole, the eccentric side of crankshaft cam is provided with lightening hole, for reducing eccentric force, be provided with oil guide slot in the paraxial side of crankshaft cam, form with the oil groove on two bearings lubricate, oil return circuit.The utility model solves crankshaft cam in prior art and in rotary course, produces very large eccentricity power and the deficiency affecting compressor performance and crankshaft lubrication weak effect, the eccentric force that the scheme adopting the utility model to provide can reduce crankshaft cam can make again bent axle fully, uniformly lubricate, and substantially increases compressor performance.
Description
Technical field
The utility model relates to Compressor Technology field, more particularly, relates to a kind of compressor being furnished with loss of weight crankshaft cam.
Background technique
Air compressor is the basic product of modern industry, and it is the device of gas pressure by former dynamic changes mechanical energy, is compressed-air actuated pressure generator.It provides power by motor, and drive the bent axle be connected with motor, the collar on bent axle rotates with bent axle, and compresses the gas in cylinder.According to mechanics principle, when eccentric shaft turns, quality is larger, and the rotatory force that give is larger.Crankshaft eccentric amount is larger, and the efficiency of compressor compresses air is higher, and the power needed for motor is also larger.Meanwhile, the eccentric size of crankshaft eccentric shaft is larger, and the eccentric force rotating generation is also larger, so the noise clashing into slide plate generation is also larger, also larger to the wearing and tearing of the collar and slide plate.In order to balance the eccentric force of eccentric shaft in conventional art, usually can install equilibrium block additional, adds additional the load of motor like this, reducing working efficiency.On the other hand, in collar movement process, upper bearing (metal) and inevitably produce friction, fever phenomenon between lower bearing and bent axle, therefore, ensures that the sufficient lubrication of the movement parts such as compressor crank shaft, bearing, the collar maintains the basic demand that machine runs well.
Chinese Patent Application No.: 200920219999.3, the applying date: on October 22nd, 2009, model utility name is called: a kind of compressor eccentric crankshaft and use the rotary compressor of this eccentric crankshaft, the eccentric cam of the eccentric crankshaft that the program is announced has half through hole longitudinally arranged in the side arranging eccentric protuberance, half through hole of setting can reduce eccentric cam in the weight arranging protuberance side.The program alleviates the weight of the eccentric protuberance of eccentric crankshaft, and carries out certain lubrication to upper bearing (metal), but half through hole opened, bumpy motion can be made because mass distribution is uneven, cause the collision in moving and produce friction and noise.In addition, the bent axle in this patent formula has just opened oil inlet hole at upper bearing (metal) place, can not form uniform lubrication, and the program does not propose the solution to lower bearing friction pair to surface of contact.
Chinese Patent Application No.: 200920179324.0, the applying date: on September 29th, 2009, model utility name is called: a kind of eccentric crankshaft and use the rotary compressor of this eccentric crankshaft, the program discloses a kind of eccentric crankshaft, the eccentric cam comprising a major axis and be arranged in major axis, eccentric cam border is equipped with helical oil groove, helical oil groove is arranged at the protuberance of eccentric cam reduce in the deep grooving rotary course of offset, the lubricant oil of helical oil groove can be brought to the surface of contact of eccentric cam and roller, reduce surface friction drag and reduce wearing and tearing.The deep slotting that the program is opened, reduces the structural strength of eccentric cam, and so-called lubrication is just for the lubrication between eccentric cam and roller, and the friction between roller and bent axle is not resolved, and also needs further improvement.
Model utility content
1. the model utility technical problem that will solve
The purpose of this utility model is to overcome crankshaft cam in prior art and in rotary course, produces very large eccentricity power and the deficiency affecting compressor performance and crankshaft lubrication weak effect, provide a kind of compressor being furnished with loss of weight cam, the scheme adopting the utility model to provide can reduce eccentric force, the reduction noise that crankshaft cam produces, can guarantee again fully, uniformly to lubricate between bent axle and upper bearing (metal), lower bearing, substantially increase compressor performance, extend the working life of compressor.
2. technological scheme
For achieving the above object, the technological scheme that the utility model provides is:
A kind of compressor being furnished with loss of weight crankshaft cam of the present utility model, comprise casing, driving mechanism and compressing mechanism, described casing is built with driving mechanism and compressing mechanism, described compressing mechanism comprises bent axle, cylinder, lower bearing and upper bearing (metal), described bent axle is provided with crankshaft cam, described crankshaft cam periphery is set with the collar, this bent axle is fixed in casing by the lower bearing and upper bearing (metal) being arranged on crankshaft cam both sides, described cylinder liner is contained on the collar, and cylinder and lower bearing, upper bearing (metal) form compression volume, the axle center of described bent axle is provided with the pump oilhole axially run through, the both sides of described crankshaft cam are radial is respectively provided with the lower oil guiding hole and upper oil guiding hole that are connected with pump oilhole, the periphery of the paraxial side of this crankshaft cam is provided with oil guide slot, the first lightening hole is offered at the eccentric side of crankshaft cam, second lightening hole and the 3rd lightening hole, the first described lightening hole, second lightening hole and the 3rd lightening hole are all arranged along the axis of oil guide slot, and the second lightening hole is provided with two, two the second lightening holes and oil guide slot are on same radial cross section, first lightening hole and the 3rd lightening hole are positioned at the both sides of the second lightening hole,
The lower end surface of described upper bearing (metal) offers the radial upper bearing (metal) end face oil groove arranged, the internal surface of this upper bearing (metal) offers along Crankshaft to the upper bearing (metal) internal diameter oil groove arranged, described upper bearing (metal) internal diameter oil groove one end is connected with upper bearing (metal) end face oil groove, the other end of this upper bearing (metal) internal diameter oil groove is connected with upper oil guiding hole, and above-mentioned upper bearing (metal) end face oil groove is connected with the upper end of oil guide slot;
The upper-end surface of described lower bearing offers the radial lower bearing end face oil groove arranged, the internal surface of this lower bearing offers along Crankshaft to the lower bearing internal diameter oil groove arranged, described lower bearing internal diameter oil groove one end is connected with lower bearing end face oil groove, lower oil guiding hole respectively, the other end of this lower bearing internal diameter oil groove extends to the bottom of lower bearing, and above-mentioned lower bearing end face oil groove is connected with the lower end of oil guide slot.
Further improve as the utility model, the first described lightening hole and the 3rd lightening hole symmetrical about the radial cross section at two the second places, lightening hole medial axis.
Further improve as the utility model, the sectional shape of the first described lightening hole, the second lightening hole and the 3rd lightening hole is circular.
Further improve as the utility model, the distance between the bottom of described oil guide slot and bent axle medial axis is greater than the minimum range between the second lightening hole and bent axle medial axis.
Further improve as the utility model, described upper bearing (metal) end face oil groove and lower bearing end face oil groove length are radially not less than the distance between oil guide slot and bent axle periphery.
3. beneficial effect
The technological scheme adopting the utility model to provide, compared with prior art, has following beneficial effect:
(1) a kind of compressor being furnished with loss of weight crankshaft cam of the present utility model, the first lightening hole, the second lightening hole and the 3rd lightening hole is offered at the eccentric side of crankshaft cam, decrease the weight of crankshaft cam eccentric side, the eccentric force produced when decreasing crank rotation, on the impact of compressor, reduces noise and vibration;
(2) a kind of compressor being furnished with loss of weight crankshaft cam of the present utility model, the lubricant oil entered by upper oil guiding hole, flow to upper bearing (metal) internal diameter oil groove bottom, oil guide slot is flowed into through upper bearing (metal) end face oil groove, and then flow into lower bearing internal diameter oil groove by lower bearing end face oil groove, the oil storage portion of final inflow casing, while lubrication, form a drainback passage, decrease the friction between bearing and bent axle to a great extent, add the working life of component, also avoid unnecessary lubricant oil to suck, and unnecessary lubricant oil is sent back to reservoir portion again, improve system pumping ability, decrease the waste of lubricant oil,
(3) a kind of compressor being furnished with loss of weight crankshaft cam of the present utility model, two the second lightening holes and oil guide slot, on same radial cross section, utilize two the second lightening holes to alleviate crankshaft cam weight, balance oil guide slot simultaneously; First lightening hole and the 3rd lightening hole about the second lightening hole and oil guide slot place radial cross section symmetrical, make crankshaft cam gravity centre distribution on the second cross section, place, lightening hole medial axis, the vibration caused because of centre offset when avoiding crankshaft cam work, guarantee that bent axle can smooth operation, extend the working life of compressor;
(4) a kind of compressor being furnished with loss of weight crankshaft cam of the present utility model, reasonable in design, principle is simple, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 a is a kind of structural representation being furnished with the compressor of loss of weight crankshaft cam of the present utility model;
Fig. 1 b is the structural representation of compressing mechanism in the utility model;
Fig. 2 a is the structural representation of bent axle in the utility model;
Fig. 2 b is the end-face structure schematic diagram of crankshaft cam in the utility model;
Fig. 3 a is the structural representation of upper bearing (metal) end face oil groove in the utility model;
Fig. 3 b is the structural representation of upper bearing (metal) internal diameter oil groove in the utility model;
Fig. 4 a is the structural representation of lower bearing end face oil groove in the utility model;
Fig. 4 b is the structural representation of lower bearing internal diameter oil groove in the utility model.
Label declaration in schematic diagram:
1, casing; 2, the collar; 3, lower bearing; 301, lower bearing internal diameter oil groove; 302, lower bearing end face oil groove; 4, cylinder; 5, upper bearing (metal); 501, upper bearing (metal) internal diameter oil groove; 502, upper bearing (metal) end face oil groove; 6, bent axle; 601, pump oilhole; 602, lower oil guiding hole; 603, upper oil guiding hole; 604, oil guide slot; 605, crankshaft cam; 606, the first lightening hole; 607, the second lightening hole; 608, the 3rd lightening hole; 7, driving mechanism.
Embodiment
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
As Fig. 1 a, Fig. 1 b, shown in Fig. 2 a and Fig. 2 b, a kind of compressor being furnished with loss of weight crankshaft cam of the present embodiment, by casing 1, driving mechanism 7 and compressing mechanism composition, casing 1 is built with driving mechanism 7 and compressing mechanism, this compressing mechanism comprises bent axle 6, cylinder 4, lower bearing 3 and upper bearing (metal) 5, bent axle 6 is provided with crankshaft cam 605, crankshaft cam 605 periphery is set with the collar 2, and bent axle 6 is fixed in casing 1 by the lower bearing 3 and upper bearing (metal) 5 being arranged on crankshaft cam 605 both sides, cylinder 4 in the present embodiment is sleeved on the collar 2 periphery, cylinder 4 forms compression volume with lower bearing 3 and upper bearing (metal) 5.The axle center of bent axle 6 is provided with the pump oilhole 601 axially run through, be provided with the lower oil guiding hole 602 and upper oil guiding hole 603 that are connected with pump oilhole 601 the both ends of the surface of crankshaft cam 605 are radial respectively, oil storage portion is provided with bottom compressor, this oil storage portion is connected with pump oilhole 601, when bent axle 6 rotates, pump oilhole 601 draws lubricant oil from oil storage portion, bottom, and by lower oil guiding hole 602 and upper oil guiding hole 603 to the surface of contact fuel feeding of bent axle 6 with lower bearing 3, upper bearing (metal) 5, form the oil feeding line of compressor.Offering sectional shape at the eccentric side of crankshaft cam 605 is the first circular lightening hole 606, second lightening hole 607 and the 3rd lightening hole 608, for alleviating the weight of crankshaft cam 605 eccentric side.First lightening hole 606, second lightening hole 607 and the 3rd lightening hole 608 are all arranged along the axis of oil guide slot 604, and the second lightening hole 607 is provided with two, two the second lightening holes 607 and oil guide slot 604 are on same radial cross section, two the second lightening holes 607 are utilized to alleviate the weight of crankshaft cam 605, simultaneously for balancing oil guide slot 604.First lightening hole 606 and the 3rd lightening hole 608 are symmetrically distributed in the both sides of the radial cross section at the second place, lightening hole 607 medial axis, make crankshaft cam 605 gravity centre distribution on the second cross section, place, lightening hole 607 medial axis, avoid the vibration caused because of centre offset when crankshaft cam 605 works, guarantee that bent axle 6 can smooth operation.In addition, the periphery of the paraxial side of crankshaft cam 605 is provided with oil guide slot 604, for dredging the lubricant oil between upper bearing (metal) 5 and lower bearing 3, distance between the bottom of oil guide slot 604 and bent axle 6 medial axis is less than the minimum range between the second lightening hole 607 and bent axle 6 medial axis, the second lightening hole 607 and upper bearing (metal) end face oil groove 502, lower bearing end face oil groove 302 is avoided when bent axle 6 rotates to there is overlapping region and conducting, make lubricant oil just return to oil storage portion without oil return circuit, cause unnecessary fuel feeding.
The lower end surface of the upper bearing (metal) 5 in the present embodiment offers upper bearing (metal) end face oil groove 502 (as Fig. 3 a), this upper bearing (metal) end face oil groove 502 is arranged along bent axle 6 radial direction, this upper bearing (metal) end face oil groove 502 radially length is not less than the distance between oil guide slot 604 and bent axle 6 periphery, guarantees to be communicated with oil guide slot 604 at upper bearing (metal) end face oil groove 502 sometime to export unnecessary lubricant oil; The internal surface of upper bearing (metal) 5 offers the upper bearing (metal) internal diameter oil groove 501 (as Fig. 3 b) axially arranged along bent axle 6, this upper bearing (metal) internal diameter oil groove 501 one end is connected with upper bearing (metal) end face oil groove 502, the other end of this upper bearing (metal) internal diameter oil groove 501 is connected with upper oil guiding hole 603, lubricant oil can be made to enter from upper oil guiding hole 603 on the one hand, upper bearing (metal) 5 and bent axle 6 surface of contact are lubricated, guarantee that upper bearing (metal) 5 and the surface of contact of bent axle 6 lubricates fully, even; On the other hand unnecessary lubricant oil can be sent into oil guide slot 604 by upper bearing (metal) lower end surface oil groove 502, make lubricant oil more easily enter gap between upper bearing (metal) 5 and crankshaft cam 605, reduce friction between the two, and carry out oil return by oil guide slot 604.
Lower bearing 3 upper-end surface in the present embodiment offers lower bearing end face oil groove 302 (as Fig. 4 a), this lower bearing end face oil groove 302 is arranged along bent axle 6 radial direction, and this lower bearing end face oil groove 302 radially length be not less than the distance between oil guide slot 604 and bent axle 6 periphery, guarantee to be communicated with oil guide slot 604 at lower bearing end face oil groove 302 sometime to collect unnecessary lubricant oil, the internal surface of lower bearing 3 offers the lower bearing internal diameter oil groove 301 (as Fig. 4 b) axially arranged along bent axle 6, this lower bearing internal diameter oil groove 301 one end and lower bearing end face oil groove 302, lower oil guiding hole 602 is connected, for to lower bearing 3 and bent axle 6, the surface of contact of crankshaft cam 605 lubricates, and oil return, the other end extends to the bottom of lower bearing 3, but lower bearing internal diameter oil groove 301 is not through with lower bearing 3 bottom surface, can guarantee that lower bearing 3 lubricates fully with the surface of contact of bent axle 6, evenly, the unnecessary pump oil caused because running through bottom lower bearing internal diameter oil groove 301 and lower bearing 3 can be avoided again.
During specific works, driving mechanism 7 drives compressing mechanism work by bent axle 6, owing to being provided with the first lightening hole 606, second lightening hole 607 and the 3rd lightening hole 608, the smooth operation of bent axle 6 energy, pump oilhole 601 starts pump oil under the rotation of bent axle 6, lubricant oil is by upper oil guiding hole 603 and lower oil guiding hole 602 pairs of upper bearing (metal)s 5, lower bearing 3 lubricates with the surface of contact of bent axle 6, owing to being provided with upper bearing (metal) internal diameter oil groove 501, upper bearing (metal) end face oil groove 502, lower bearing internal diameter oil groove 301 and lower bearing end face oil groove 302, add direct regions of lubrication, lower bearing 3 and upper bearing (metal) 5 is made to obtain sufficient lubrication, and lubrication evenly, when the lubricant oil that upper bearing (metal) internal diameter oil groove 501 enters is too much, along with the rotation of bent axle 6, the unnecessary lubricant oil in top is sent into upper bearing (metal) end face oil groove 502 automatically, and send into lower bearing end face oil groove 302 by oil guide slot 604, and then enter oil storage portion, form oil return circuit, achieve recycling of lubricant oil.The present embodiment utilizes the lightening hole on crankshaft cam 605, decrease the weight of crankshaft cam 605 eccentric side, decrease the eccentric force of generation when bent axle 6 rotates to the impact of compressor, decrease noise and vibration, and upper bearing (metal) 5 and lower bearing 3 are achieved lubricate simultaneously, unnecessary lubricant oil is sent into oil storage portion by oil return circuit, decreases surface friction drag when bent axle 6 works, substantially increase the working life of air compressor.
Schematically above be described the utility model and mode of execution thereof, this description does not have restricted, and also just one of the mode of execution of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the mode of structure similar to this technological scheme and embodiment without creationary, protection domain of the present utility model all should be belonged to.
Claims (5)
1. is furnished with the compressor of loss of weight crankshaft cam for one kind, comprise casing (1), driving mechanism (7) and compressing mechanism, described casing (1) is built with driving mechanism (7) and compressing mechanism, described compressing mechanism comprises bent axle (6), cylinder (4), lower bearing (3) and upper bearing (metal) (5), described bent axle (6) is provided with crankshaft cam (605), described crankshaft cam (605) periphery is set with the collar (2), this bent axle (6) is fixed in casing (1) by the lower bearing (3) and upper bearing (metal) (5) being arranged on crankshaft cam (605) both sides, described cylinder (4) is sleeved on the collar (2) periphery, cylinder (4) and lower bearing (3), upper bearing (metal) (5) forms compression volume, it is characterized in that: the axle center of described bent axle (6) is provided with the pump oilhole (601) axially run through, the both sides of described crankshaft cam (605) respectively radial direction are provided with the lower oil guiding hole (602) and upper oil guiding hole (603) that are connected with pump oilhole (601), the periphery of this crankshaft cam (605) paraxial side is provided with oil guide slot (604), the first lightening hole (606) is offered at the eccentric side of crankshaft cam (605), second lightening hole (607) and the 3rd lightening hole (608), described the first lightening hole (606), second lightening hole (607) and the 3rd lightening hole (608) are all arranged along the axis of oil guide slot (604), and the second lightening hole (607) is provided with two, two the second lightening holes (607) and oil guide slot (604) are on same radial cross section, first lightening hole (606) and the 3rd lightening hole (608) are positioned at the both sides of the second lightening hole (607),
The lower end surface of described upper bearing (metal) (5) offers the radial upper bearing (metal) end face oil groove (502) arranged, the internal surface of this upper bearing (metal) (5) offers the upper bearing (metal) internal diameter oil groove (501) axially arranged along bent axle (6), described upper bearing (metal) internal diameter oil groove (501) one end is connected with upper bearing (metal) end face oil groove (502), the other end of this upper bearing (metal) internal diameter oil groove (501) is connected with upper oil guiding hole (603), and above-mentioned upper bearing (metal) end face oil groove (502) is connected with the upper end of oil guide slot (604);
The upper-end surface of described lower bearing (3) offers the radial lower bearing end face oil groove (302) arranged, the internal surface of this lower bearing (3) offers the lower bearing internal diameter oil groove (301) axially arranged along bent axle (6), described lower bearing internal diameter oil groove (301) one end respectively with lower bearing end face oil groove (302), lower oil guiding hole (602) is connected, the other end of this lower bearing internal diameter oil groove (301) extends to the bottom of lower bearing (3), above-mentioned lower bearing end face oil groove (302) is connected with the lower end of oil guide slot (604).
2. a kind of compressor being furnished with loss of weight crankshaft cam according to claim 1, is characterized in that: described the first lightening hole (606) and the 3rd lightening hole (608) symmetrical about the radial cross section at two the second lightening hole (607) places, medial axis.
3. a kind of compressor being furnished with loss of weight crankshaft cam according to claim 2, is characterized in that: the sectional shape of described the first lightening hole (606), the second lightening hole (607) and the 3rd lightening hole (608) is circular.
4. a kind of compressor being furnished with loss of weight crankshaft cam according to claim 3, is characterized in that: the distance between the bottom of described oil guide slot (604) and bent axle (6) medial axis is less than the minimum range between second lightening hole (607) of inner side and bent axle (6) medial axis.
5. a kind of compressor being furnished with loss of weight crankshaft cam according to claim 4, is characterized in that: described upper bearing (metal) end face oil groove (502) length radially and lower bearing end face oil groove (302) length radially are all not less than the distance between oil guide slot (604) and bent axle (6) periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579794.7U CN204113657U (en) | 2014-09-30 | 2014-09-30 | A kind of compressor being furnished with loss of weight crankshaft cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579794.7U CN204113657U (en) | 2014-09-30 | 2014-09-30 | A kind of compressor being furnished with loss of weight crankshaft cam |
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| Publication Number | Publication Date |
|---|---|
| CN204113657U true CN204113657U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420579794.7U Expired - Fee Related CN204113657U (en) | 2014-09-30 | 2014-09-30 | A kind of compressor being furnished with loss of weight crankshaft cam |
Country Status (1)
| Country | Link |
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| CN (1) | CN204113657U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889069A (en) * | 2016-05-30 | 2016-08-24 | 广西大学 | Rotating compressor low in exhaust oil content |
| CN108386353A (en) * | 2018-04-17 | 2018-08-10 | 珠海凌达压缩机有限公司 | Pump body subassembly and compressor and air conditioner |
| CN108412771A (en) * | 2018-04-17 | 2018-08-17 | 珠海凌达压缩机有限公司 | Pump body subassembly and compressor and air conditioner |
| CN108412772A (en) * | 2018-04-17 | 2018-08-17 | 珠海凌达压缩机有限公司 | Pump body subassembly and compressor and air conditioner |
| CN109595157A (en) * | 2018-12-17 | 2019-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
| CN109595159A (en) * | 2018-12-17 | 2019-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
-
2014
- 2014-09-30 CN CN201420579794.7U patent/CN204113657U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889069A (en) * | 2016-05-30 | 2016-08-24 | 广西大学 | Rotating compressor low in exhaust oil content |
| CN108386353A (en) * | 2018-04-17 | 2018-08-10 | 珠海凌达压缩机有限公司 | Pump body subassembly and compressor and air conditioner |
| CN108412771A (en) * | 2018-04-17 | 2018-08-17 | 珠海凌达压缩机有限公司 | Pump body subassembly and compressor and air conditioner |
| CN108412772A (en) * | 2018-04-17 | 2018-08-17 | 珠海凌达压缩机有限公司 | Pump body subassembly and compressor and air conditioner |
| CN108412772B (en) * | 2018-04-17 | 2022-01-04 | 珠海凌达压缩机有限公司 | Pump body subassembly and compressor and air conditioner |
| CN109595157A (en) * | 2018-12-17 | 2019-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
| CN109595159A (en) * | 2018-12-17 | 2019-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20170930 |