CN201407168Y - Cylinder jacket of internal combustion engine type novel piston air compressor - Google Patents
Cylinder jacket of internal combustion engine type novel piston air compressor Download PDFInfo
- Publication number
- CN201407168Y CN201407168Y CN2009203022558U CN200920302255U CN201407168Y CN 201407168 Y CN201407168 Y CN 201407168Y CN 2009203022558 U CN2009203022558 U CN 2009203022558U CN 200920302255 U CN200920302255 U CN 200920302255U CN 201407168 Y CN201407168 Y CN 201407168Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- air compressor
- end surface
- cylinder liner
- support shoulder
- 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.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims description 9
- 239000000314 lubricant Substances 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000002355 dual-layer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Compressor (AREA)
Abstract
The cylinder jacket of internal combustion engine type piston air compressor relates to a part of air compressor, its upper portion has location supporting shoulder, and its upper end surface is equipped with sealing gasket location projection; a cylinder sleeve positioning step is arranged below the positioning support shoulder, and a plurality of annular grooves are formed in the lower part of the cylinder sleeve; the positioning support shoulder is tightly attached to a cylinder sleeve mounting and positioning platform of the machine body, the upper end surface of the positioning support shoulder is slightly higher than the upper end surface of the machine body, and the two upper end surfaces are jointly provided with a compression sealing gasket; the lower part of the cylinder sleeve is in clearance fit with a cylinder sleeve mounting hole of the machine body and is in sealing fit with the cylinder sleeve of the machine body through a sealing rubber ring and is in compression fit with a radial positioning platform. The inner surface of the cylinder sleeve is only provided with a flat reticulate pattern which is provided with grooves and can store lubricating oil, and the lubricating is carried out in a splash lubrication mode. The utility model has the advantages of sealing performance is good, commonality and interchangeability are good, lubricated even, the wearability is good, cost of maintenance is low, be suitable for and use in internal-combustion engine formula piston air compressor machine.
Description
Technical field:
The utility model relates to a kind of component of air compressor, particularly a kind of internal-combustion engine formula novel piston air compressor cylinder cover.
Background technique:
Cylinder is a major component of forming minimum cylinder volume in the air compressor, and it is the most complicated component of structure in traditional air compressor.Because cylinder surfaces is action of air pressure by compression, and contacts with the piston ring of high-speed motion, therefore, the internal surface of cylinder is more easy to wear.According to the differences such as organization plan of the working pressure of compressor, air displacement, compressor, the material of cylinder and structural type have varied, and the air cylinder structure and the deficiency thereof of conventional piston formula air compressor mainly contain:
1, the general no cylinder sleeve open architectures that adopt air-cooled solid wall of the cylinder of the middle-size and small-size piston compressor of low pressure for reducing the operating temperature of cylinder, cast out many radiating fin at cylinder outer wall more.Its deficiency is that cylinder shape is complicated, and the cylinder heat radiation is subjected to externally temperature influence bigger, and cooling uniformity is bad, and maintenance cost is higher;
2, the cylinder of medium-sized and large-scale air compressor mostly is the enclosed dual-layer wall of a complex-shaped two open type all with cover or a sealing of headband lid or the foundry goods that three layers of wall do not have the cylinder sleeve structure.The lobed valve chamber of dual-layer wall cylinder, remaining part are surrounded the swept volume of cylinder by water jacket.Three layers of wall cylinder form the second layer wall of water jacket and valve chamber in addition and form the 3rd layer of wall that is communicated with the valve chamber gas channel except one deck wall that constitutes swept volume.Its shortcoming is that shape, structure are very complicated, and casting manufacturability is poor, manufacturing, maintenance cost height;
3, the small part piston type air compressor adopts dry liner as working cylinder.Dry cylinder liner need adopt the fit of interference fit, and is very high to the dimension precision requirement of assembling, increased processing cost, and dismounting is also inconvenient.In addition, because the dry cylinder liner outer surface contact with cooling water, make the deterioration of cylinder bearing surface cooling situation and cause the friction pair interlock easily;
4, a small amount of double-acting piston air compressor adopts the modular cylinder structure of " cylinder block+protecgulum+wet cylinder liner+bonnet ", the air cylinder structure of this form is comparatively complicated, and owing to be subjected to the influence of factors such as mounting structure, installation pretightening force and split surface sealing difficulty, this structure in, use in the low-pressure scope comparatively suitable;
In addition, also generally there is following shortcoming in traditional piston type air compressor cylinder except above-mentioned deficiency:
(1), the interchangeability of cylinder is poor, is not easy to realize the cylinder producing in serial form;
(2), cylinder need be provided with special lubricant oil oil transportation hole and lubricating point owing to be subjected to that the lubricating point plan of establishment is rational to be influenced, cylinder in use often is not easy to reach desirable evenly lubricated user mode, influences the working life of cylinder.
The model utility content:
The technical problems to be solved in the utility model is: a kind of structure more science, more rational internal-combustion engine formula novel piston air compressor cylinder cover are provided, make it reach following main purpose:
1. by innovation and utilization, change the mounting type of air compressor cylinder, improve sealing reliability, reduce the amount of deformation that cylinder is installed, prolong the working life of cylinder liner the air compressor cylinder structure;
2. under the prerequisite that satisfies the air compressor usage requirement,, improve the versatility and the interchangeability of cylinder, be convenient to realize the producing in serial form of air compressor cylinder by optimal design to cylinder liner;
Further technical problem to be solved in the utility model is: improve the lubrication state of cylinder bearing surface, improve the wear resistance of cylinder surfaces, prolong the working life of cylinder.
The technological scheme that solves the problems of the technologies described above is: a kind of internal-combustion engine formula novel piston air compressor cylinder cover, and this cylinder liner top has the positioning support shoulder, and also is provided with the sealing gasket positioning convex in the upper-end surface of positioning support shoulder; The below of positioning support shoulder is provided with the cylinder liner positioning step, and the bottom of cylinder liner is provided with several annular groove that is used for the fitting tight cushion rubber; Described positioning support shoulder is close on the cylinder liner installing and locating platform that is installed in body, and its upper-end surface exceeds 0.03～0.15mm than the upper-end surface of body, and the upper-end surface of the upper-end surface of this positioning support shoulder and body is equipped with jointly and compresses sealing gasket; The cylinder liner mounting hole Spielpassung of the bottom of cylinder liner and body, and the sealing of the cylinder liner of O-ring seal by being positioned at several annular groove and body, radial location platform compression fit.
Further technological scheme of the present utility model is: the interior sired results of described internal-combustion engine formula novel piston air compressor cylinder cover is done the surface and is provided with platform reticulate pattern with groove, that can store lubricant oil, and the mode by splash lubrication between this interior sired results work surface and the piston ring working surface is lubricated.
Another technological scheme of the present utility model is: be provided with the roll extrusion fillet of handling through roll extrusion between the outer surface of the lower end surface of described positioning support shoulder and cylinder liner positioning step.
Because adopt said structure, the internal-combustion engine formula novel piston air compressor cylinder cover of the utility model is compared with existing piston formula air compressor cylinder, has following beneficial effect:
1, good seal performance:
Because the utility model has adopted the structural type of wet liner, promptly be to process the positioning support shoulder on cylinder liner top, and also being provided with the sealing gasket positioning convex in the upper-end surface of positioning support shoulder, the design of cylinder liner bottom has several to be used for the annular groove of fitting tight cushion rubber.Adopt the cylinder liner of this structure to have stronger tensile strength (〉=230N/mm
2) and the routed ability of resistance to compression, can bear the bigger pretightening force that compresses.And since the utility model adopted unique " an end cylinder cap compress the other end freedom, with the body Spielpassung " fit, promptly be on the cylinder liner installing and locating platform that the positioning support shoulder is close to be installed in body, its upper-end surface exceeds 0.03～0.15mm than the upper-end surface of body, and the upper-end surface of this positioning support shoulder and the upper-end surface of body are equipped with jointly and compress sealing gasket, to realize the top seal of cylinder liner; And, do not allow when making its work to move up and down by this positioning support shoulder upper-end surface that compresses sealing gasket clamping cylinder cover; The bottom of cylinder liner is a free end, produces thermal expansion for cylinder sleeve along the cylinder axial direction; Be positioned at cylinder liner sealing, the radial location platform compression fit of the O-ring seal of several annular groove and the body of cylinder liner, to realize the radial location effect of seal action and cylinder sleeve.Therefore, the utility model promptly is used in the higher air compressor of exhaust pressure, also has good sealing property, and the amount of deformation that its cylinder is installed is also less, has prolonged the working life of cylinder liner greatly.
2, versatility and interchangeability are good:
Because the utility model has adopted the structural type of wet liner, it is simple in structure, and casting, technology capability are good, and the dimension precision requirement of cylinder liner axial direction is not high, and sealing is reliable.In the actual production of air compressor, even only need the cylinder liner mounting hole of air compressor body is made a small amount of change, can exchange with the diesel cylinder sleeve of some kinds, helped reducing the manufacture cost that air compressor is produced in batches, improve the versatility and the interchangeability of cylinder, be convenient to realize the producing in serial form of air compressor cylinder.
3, lubricated more even, wear resistance is better:
Because the utility model sired results has within it made to cancel on the surface special lubricant oil oil transportation hole and lubricating point that conventional piston formula air compressor cylinder internal surface is provided with, but adopt abrasive process to process platform reticulate pattern with groove, that can store lubricant oil, and be lubricated by the mode of splash lubrication, therefore compare with the conventional piston formula air compressor cylinder that lubricant oil oil transportation hole and lubricating point are set specially at cylinder surfaces, lubricating of the utility model cylinder liner is more even, wear resistance is better, longer service life more is applicable to the high speed air compressor.
4, easy accessibility, maintenance cost is low:
Adopted air compressor of the present utility model, behind cylinder wear, only need change part of cylinder liner and can repair (and conventional piston formula air compressor generally need be changed entire cylinder or join the way reparation of ring with the boring cylinder), and dismounting is very convenient, can reduce the air compressor maintenance cost greatly.
5, because the utility model has adopted the structural type of wet liner, its cylinder liner outer wall directly contacts with cooling liquid, and all surrounded by the cooling liquid that flows at the working surface of entire cylinder cover, cooling effect is better, helping reduction has component and compressed-air actuated temperature, has guaranteed the operational safety of air compressor.
6, because the utility model also is provided with the roll extrusion fillet of handling through roll extrusion between the outer surface of the lower end surface of positioning support shoulder and cylinder liner positioning step, improved the fatigue strength of cylinder liner knuckle, avoid the fracture of cylinder liner, further improved the reliability and the working life of air compressor cylinder cover.
Below, the technical characteristics that the internal-combustion engine formula novel piston air compressor cylinder of the utility model is overlapped is further described in conjunction with the accompanying drawings and embodiments.
Description of drawings:
Fig. 1～Fig. 3: the structural representation of the internal-combustion engine formula novel piston air compressor cylinder cover of the utility model,
Fig. 1: plan view, the A portion enlarged diagram of Fig. 2: Fig. 1,
Fig. 3: plan view;
Fig. 4: internal-combustion engine formula novel piston air compressor cylinder cover of the utility model and the assembling schematic representation between the body;
Among the figure: 1-positioning support shoulder, the upper-end surface of 1a-positioning support shoulder, the lower end surface of 1b-positioning support shoulder, 2 sealing gasket positioning convex, 3-cylinder liner positioning step, 4-roll extrusion fillet, the 5-platform reticulate pattern, the 6-annular groove, 7-compresses sealing gasket, the 8-body, the upper-end surface of 8a-body, the sealing of 8b-cylinder liner, radial location platform, 8c-cylinder liner installing and locating platform, 9-O-ring seal.
Embodiment:
Disclosed among Fig. 1～Fig. 3 is a kind of internal-combustion engine formula novel piston air compressor cylinder cover, this cylinder liner top has positioning support shoulder 1, and also be provided with sealing gasket positioning convex 2 at the upper-end surface of positioning support shoulder 1 1a, the below of positioning support shoulder 1 also is provided with cylinder liner positioning step 3, be provided with the roll extrusion fillet of handling through roll extrusion 4 between the lower end surface 1b of the outer surface of this cylinder liner positioning step 3 and positioning support shoulder, the bottom of cylinder liner is provided with several annular groove that is used for the fitting tight cushion rubber 6; Described positioning support shoulder 1 is close to the cylinder liner installing and locating platform 8c that is installed in body 8 and is gone up (as shown in Figure 4), distance 0.03～0.15mm that its upper-end surface 1a exceeds than the upper-end surface 8a of body, and the upper-end surface 1a of this positioning support shoulder and the upper-end surface 8a of body are equipped with jointly and compress sealing gasket 7, to realize the top seal of cylinder liner; And, do not allow when making its work to move up and down by this positioning support shoulder upper-end surface that compresses sealing gasket clamping cylinder cover; The bottom of described internal-combustion engine formula novel piston air compressor cylinder cover and the cylinder liner mounting hole Spielpassung of body, therefore, the lower end of this cylinder liner is a free end, produces thermal expansion for cylinder sleeve along the cylinder axial direction; Be installed in cylinder liner sealing, the radial location platform 8b compression fit of O-ring seal 9 and body in several annular groove 6, to realize the radial location effect of seal action and cylinder liner.
The interior sired results of described internal-combustion engine formula novel piston air compressor cylinder cover makes only to be provided with on the surface platform reticulate pattern 5 with groove, that can store lubricant oil, and the mode by splash lubrication between this interior sired results work surface and the piston ring working surface is lubricated.
A kind of conversion as present embodiment, described internal-combustion engine formula novel piston air compressor cylinder cover also can be as the special lubricant oil oil transportation hole and the lubricating point of conventional piston formula air compressor cylinder surface setting within it, adopt other lubricating system to be lubricated, but its lubrication effect is so not good.
As another conversion of present embodiment, the knuckle between the lower end surface 1b of the outer surface of described cylinder liner positioning step 3 and positioning support shoulder also can be the knuckle that adopts common turning process to process, but fatigue resistance is so not good.
Claims (3)
1. internal-combustion engine formula novel piston air compressor cylinder cover, it is characterized in that: this cylinder liner top has the positioning support shoulder, and also is provided with the sealing gasket positioning convex in the upper-end surface of positioning support shoulder; The below of positioning support shoulder is provided with the cylinder liner positioning step, and the bottom of cylinder liner is provided with several annular groove that is used for the fitting tight cushion rubber; Described positioning support shoulder is close on the cylinder liner installing and locating platform that is installed in body, and its upper-end surface exceeds 0.03～0.15mm than the upper-end surface of body, and the upper-end surface of the upper-end surface of this positioning support shoulder and body is equipped with jointly and compresses sealing gasket; The cylinder liner mounting hole Spielpassung of the bottom of cylinder liner and body, and the sealing of the cylinder liner of O-ring seal by being positioned at several annular groove and body, radial location platform compression fit.
2. internal-combustion engine formula novel piston air compressor cylinder cover according to claim 1, it is characterized in that: the interior sired results of described internal-combustion engine formula novel piston air compressor cylinder cover is done the surface and is provided with platform reticulate pattern with groove, that can store lubricant oil, and the mode by splash lubrication between this interior sired results work surface and the piston ring working surface is lubricated.
3. internal-combustion engine formula novel piston air compressor cylinder cover according to claim 1 and 2 is characterized in that: be provided with the roll extrusion fillet of handling through roll extrusion between the outer surface of the lower end surface of described positioning support shoulder and cylinder liner positioning step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203022558U CN201407168Y (en) | 2009-04-16 | 2009-04-16 | Cylinder jacket of internal combustion engine type novel piston air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203022558U CN201407168Y (en) | 2009-04-16 | 2009-04-16 | Cylinder jacket of internal combustion engine type novel piston air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407168Y true CN201407168Y (en) | 2010-02-17 |
Family
ID=41678101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203022558U Expired - Fee Related CN201407168Y (en) | 2009-04-16 | 2009-04-16 | Cylinder jacket of internal combustion engine type novel piston air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407168Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536748A (en) * | 2012-02-08 | 2012-07-04 | 江苏新象股份有限公司 | York cylinder sleeve and processing method thereof |
| CN105345170A (en) * | 2015-12-05 | 2016-02-24 | 綦江县赛普雷多汽车齿轮厂 | Tool for positioning synchronizer cone nave |
| CN105364201A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Clamp for synchronizer cone nave |
| CN105364211A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Fixture suitable for synchronizer cone hub |
| CN105364217A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Synchronizer cone hub positioning device |
| CN105364206A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Device suitable for synchronizer cone hub |
| CN105364209A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Synchronizer cone hub positioning tool |
| CN105458415A (en) * | 2015-12-05 | 2016-04-06 | 綦江县赛普雷多汽车齿轮厂 | Locating tool for synchronizer cone hub |
| CN105478924A (en) * | 2015-12-05 | 2016-04-13 | 綦江县赛普雷多汽车齿轮厂 | Device for processing synchronizer cone nave |
| CN109441773A (en) * | 2018-11-12 | 2019-03-08 | 扬州瑞平环保科技有限公司 | A kind of compressor cylinder jacket |
-
2009
- 2009-04-16 CN CN2009203022558U patent/CN201407168Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536748A (en) * | 2012-02-08 | 2012-07-04 | 江苏新象股份有限公司 | York cylinder sleeve and processing method thereof |
| CN102536748B (en) * | 2012-02-08 | 2014-09-03 | 江苏新象股份有限公司 | York cylinder sleeve and processing method thereof |
| CN105345170A (en) * | 2015-12-05 | 2016-02-24 | 綦江县赛普雷多汽车齿轮厂 | Tool for positioning synchronizer cone nave |
| CN105364201A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Clamp for synchronizer cone nave |
| CN105364211A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Fixture suitable for synchronizer cone hub |
| CN105364217A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Synchronizer cone hub positioning device |
| CN105364206A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Device suitable for synchronizer cone hub |
| CN105364209A (en) * | 2015-12-05 | 2016-03-02 | 綦江县赛普雷多汽车齿轮厂 | Synchronizer cone hub positioning tool |
| CN105458415A (en) * | 2015-12-05 | 2016-04-06 | 綦江县赛普雷多汽车齿轮厂 | Locating tool for synchronizer cone hub |
| CN105478924A (en) * | 2015-12-05 | 2016-04-13 | 綦江县赛普雷多汽车齿轮厂 | Device for processing synchronizer cone nave |
| CN109441773A (en) * | 2018-11-12 | 2019-03-08 | 扬州瑞平环保科技有限公司 | A kind of compressor cylinder jacket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201407168Y (en) | Cylinder jacket of internal combustion engine type novel piston air compressor | |
| CN102562353B (en) | Integrated aluminum alloy tank | |
| KR20140120923A (en) | Piston with enhanced cooling gallery | |
| CN202300894U (en) | Fan-shaped high pressure compressor | |
| KR20140120922A (en) | Piston with enhanced cooling gallery | |
| CN204163871U (en) | The strong cooling steel piston of a kind of gas engine | |
| CN201284698Y (en) | Pin hole copper-inlaid lining type piston with inner-cooling structure | |
| CN103256137A (en) | Supporting mechanism of wet-type cylinder sleeve | |
| CN105130444B (en) | A kind of wet cylinder liner and its method for preparing powder metallurgy | |
| CN210510257U (en) | Light-weight wear-resistant bimetal combined piston ring assembly and internal combustion engine adopting same | |
| CN210510258U (en) | Ablation-resistant bimetallic combined piston ring assembly and internal combustion engine using the same | |
| CN202220670U (en) | Air-cooled diesel engine or gasoline engine body with detachable cylinder sleeve | |
| CN104653324A (en) | High-wear-resisting air cylinder sleeve | |
| CN104747312A (en) | Internal combustion engine piston with internal cooling oil cavity structure and internal combustion engine | |
| CN214577408U (en) | Cylinder body connecting structure | |
| CN201412233Y (en) | Cylinder sleeve for internal combustion engine | |
| CN206439120U (en) | Engine and its cylinder gasket | |
| CN103256140B (en) | Reciprocating engine connecting rod | |
| CN200982238Y (en) | Automobile engine piston employing agile fuel | |
| CN202125366U (en) | Central cylinder liner for internal combustion engine | |
| CN213655000U (en) | Steel piston with enhanced cooling | |
| CN205689312U (en) | A kind of environment protecting type engine cylinder jacket | |
| CN223523839U (en) | Engine block with high strength and lightweight | |
| CN216518381U (en) | Novel connecting rod type hydraulic motor | |
| CN202017545U (en) | Spray cooling system for engine piston of motorcycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liuzhou Hengda Power Machinery Manufacturing Co., Ltd. Assignor: Liuzhou Yudong Diesel Machine Co., Ltd. Contract record no.: 2010450000054 Denomination of utility model: Cylinder sleeve of internal combustion engine type novel piston air compressor Granted publication date: 20100217 License type: Exclusive License Record date: 20100806 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20110416 |