CN203335153U - Engine assembly - Google Patents
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- CN203335153U CN203335153U CN2013201227916U CN201320122791U CN203335153U CN 203335153 U CN203335153 U CN 203335153U CN 2013201227916 U CN2013201227916 U CN 2013201227916U CN 201320122791 U CN201320122791 U CN 201320122791U CN 203335153 U CN203335153 U CN 203335153U
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- Prior art keywords
- oil
- input channel
- oil circuit
- annular
- pressure control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses an engine assembly. A shell comprises a phaser assembly installation portion and an oil pressure control valve installation portion. A cam shaft is provided with a front oil inlet channel and a rear oil inlet channel, wherein the front oil inlet channel and the rear oil inlet channel are connected with a front oil inlet hole and a rear oil inlet hole of a phaser assembly respectively. A cylinder cover is provided with a first annular oil way communicated with the front oil inlet channel and a second annular oil way communicated with the rear oil inlet channel. The shell is provided with a first oil way communicating a first valve port of an oil pressure control valve with the first annular oil way, a second oil way communicating a second valve port of the oil pressure control valve with a hydraulic oil feeding device and a third oil way communicating a third valve port of the oil pressure control valve with the second annular oil way. A first spherical groove is formed in an air inlet port of an air inlet channel, and a second spherical groove is formed in an air exhaust port of an air outlet channel. According to the engine assembly, an air valve control system for controlling air inlet flow, the air inlet channel and the air outlet channel are optimized, and combustion efficiency of a combustion chamber is effectively improved.
Description
Technical field
The utility model relates to technical field of engines, relates to more specifically a kind of engine assembly.
Background technique
Motor is as the heart of automobile, and sufficient air inflow can guarantee that air-fuel mixture is abundant, and then improves engine power performance and reduce discharge.
The intake duct of motor and air outlet flue are arranged on the cylinder cap of motor, in prior art, the common blank hole that intake duct is casting, air-flow is behind the aditus laryngis place of intake duct, pass through again in the valve flowing in combustion chamber, VVT(Variable Valve Timing in prior art, Variable Valve Time) system is by the hydraulic control valve and the phase discriminator that are equipped with, phase place to engine cam is regulated, thereby make valve opening, the variation of the time of closing with engine speed changes, to improve charging efficiency, increase motor slow-speed of revolution moment of torsion, power, reduce engine consumption.
The work oil duct of phase discriminator comprises preposition oil inlet hole and rearmounted oil inlet hole, pressure control valve is two position three-way valve, its first oil circuit is connected with the preposition oil inlet hole of phase discriminator, and the second oil circuit is connected with operating oil supplying device, and the 3rd oil circuit is connected with the rearmounted oil inlet hole of phase discriminator.
During work, ECU(Electronic Control Unit, electronic control unit, claim again " car running computer ") while by feedback, needing the preposition information of air inlet timing, pressure control valve opens its first oil circuit by changing valve position, closes the second oil circuit and the 3rd oil circuit, and machine oil enters the hydrovalve of phase discriminator assembly by the preposition oil inlet hole of phase discriminator, change the aperture of hydrovalve under the fluid pressure effect, cause the air inlet phase that changes motor.Equally, when ECU needs the information of air inlet timing postposition by feedback, pressure control valve is controlled the 3rd oil circuit and is opened, close the first oil circuit and the second oil circuit, machine oil enters the hydrovalve of phase discriminator assembly by the rearmounted oil inlet hole of phase discriminator, change the aperture of hydrovalve under the fluid pressure effect, cause air inlet phase to change.
Yet, in prior art, between pressure control valve and operating oil supplying device be connected and and with the phase discriminator assembly between be connected all and connected by external pipeline, because external pipeline is subject to the external force impact, and then easily cause the unsettled problem of hydraulic pressure, cause the aperture control of valve unstable, and then cause the unsettled problem of the indoor charge flow rate of engine combustion.
In addition, because intake duct of the prior art and air outlet flue are the common blank hole of casting, the resistance that air-flow runs into when the throat location through intake duct and air outlet flue is larger, and then has affected the air inflow of motor.
Therefore, how to optimize in prior art the pneumatic door control system, intake duct and the air outlet flue that affect charge flow rate, to improve the combustion efficiency of engine chamber, become those skilled in the art's important technological problems to be solved.
The model utility content
In order to solve the problems of the technologies described above, the utility model provides a kind of engine assembly, and pneumatic door control system, intake duct and the air outlet flue of controlling charge flow rate all are optimized, and then have effectively improved the combustion efficiency of engine chamber.
A kind of engine assembly that the utility model provides, comprise main body, be provided with the cylinder cap of intake duct and air outlet flue and be arranged at the camshaft in described main body, the housing that also to comprise with described main body be integral type, described housing comprises phase discriminator assembly assembly department and pressure control valve assembly department, described camshaft is provided with preposition oil input channel and the rearmounted oil input channel be connected respectively with rearmounted oil inlet hole with the preposition oil inlet hole of phase discriminator assembly, described cylinder cap is provided with the first annular oil circuit be connected with described preposition oil input channel and the second annular oil circuit be connected with described rearmounted oil input channel, and described housing is provided with the first oil circuit that the first valve port of described pressure control valve is connected with the described first annular oil circuit, the 3rd oil circuit that the 3rd valve port of the second oil circuit that the second valve port of described pressure control valve is connected with described operating oil supplying device and described pressure control valve is connected with the described second annular oil circuit, and the air inlet aditus laryngis place of described intake duct is provided with the first ball recess, the exhaust aditus laryngis place of described air outlet channel is provided with the second ball recess.
Preferably, described preposition oil input channel and described rearmounted oil input channel include axial oil duct and the radial direction oil be connected, and the axial oil duct of described preposition oil input channel and described rearmounted oil input channel is connected with described preposition oil inlet hole and described rearmounted oil inlet hole respectively; The radial direction oil of described preposition oil input channel and described rearmounted oil input channel is connected with the described first annular oil circuit and the described second annular oil circuit respectively.
Preferably, the radius of described the first ball recess is 5-7mm, and the radius of described the second ball recess is 8.5-10.5mm.
Preferably, the radius of described the first ball recess is 6mm, and the radius of described the second ball recess is 9.5mm.
Preferably, the thick tooth of the exhaust timing gear of described VVT system offers annular groove on the end face of thin tooth, in described annular groove, anti-backlash is installed, one end of described anti-backlash and the first locating stud butt, the other end of described anti-backlash and the second locating stud butt, described the first locating stud and described thick tooth fix, and described the second locating stud and described thin tooth fix, and described anti-backlash makes described thin tooth produce the trend that turns clockwise by elastic force; The elastic force that described anti-backlash produces described thin tooth is 13Nm～23Nm.
The technological scheme provided by the utility model, the phase discriminator assembly is arranged on to the phase discriminator assembly assembly department of housing, and the preposition oil input channel of the preposition oil inlet hole of phase discriminator assembly and housing is aligned, and should keep sealing between the two, prevent that machine oil from being spilt by the two gap; Equally, the rearmounted oil input channel of the rearmounted oil inlet hole of phase discriminator assembly and housing is aligned, and should keep sealing between the two.Pressure control valve is arranged on the pressure control valve assembly department of housing, and the first oil circuit of the first valve port of pressure control valve and housing is aligned, and the second valve port aligns with the second oil circuit of housing, and the 3rd valve port aligns with the 3rd oil circuit of housing.
During work, operating oil supplying device passes through the second oil circuit of housing to the pressure control valve fuel feeding, when ECU needs the preposition information of air inlet timing by feedback, pressure control valve opens its first valve port by changing valve position, close the second valve port and the 3rd valve port, machine oil arrives the first annular oil circuit of cylinder cap by the first oil circuit, now, the air inlet timing gear of camshaft and drive phase discriminator assembly are in rotary state, because the first annular oil circuit is annular, therefore the preposition oil input channel of camshaft communicates with the first annular oil circuit all the time, machine oil enters preposition oil input channel by the first annular oil circuit, enter again the preposition oil inlet hole of phase discriminator assembly, and then enter the hydrovalve of phase discriminator assembly, change the aperture of hydrovalve under the fluid pressure effect, cause the change air inlet phase.
Equally, when ECU needs the information of air inlet timing postposition by feedback, pressure control valve opens its 3rd valve port by changing valve position, close the second valve port and the first valve port, machine oil arrives the second annular oil circuit of cylinder cap by the 3rd oil circuit, the rearmounted oil input channel of camshaft communicates with the second annular oil circuit all the time, machine oil enters rearmounted oil input channel by the second annular oil circuit, enter again the rearmounted oil inlet hole of phase discriminator assembly, and then enter the hydrovalve of phase discriminator assembly, change the aperture of hydrovalve under the fluid pressure effect, cause the change air inlet phase.
Obviously, so arrange, the cylinder body of the motor that the utility model provides, do not need to arrange external oil way, only phase discriminator assembly and pressure control valve need be installed in housing, by the utility model scheme, can realize the control of phase discriminator assembly equally, effectively avoided because external oil way is set, and the unsettled problem of the hydraulic pressure caused, and then avoided the aperture of valve to control unsettled problem.
In addition, the cylinder cap provided due to the utility model, the air inlet aditus laryngis place of its intake duct is provided with the first ball recess, while extruding from the gap between valve and cylinder wall after the gas shock valve, can form and roll stream at the first ball recess place, simultaneously, the exhaust aditus laryngis place of air outlet flue is provided with the second ball recess, same air-flow is during through the second ball recess place of the exhaust aditus laryngis of air outlet flue, also can form and roll stream increase Ventialtion rate, so in the balance that does not affect charge flow rate and extraction flow, increased Ventialtion rate, and then improved engine intake airflow.
In sum, the engine assembly that the utility model provides, be optimized pneumatic door control system, intake duct and air outlet flue is optimized simultaneously, and then effectively improved the combustion efficiency of the firing chamber of engine assembly.
The accompanying drawing explanation
The cylinder body master TV structure schematic diagram of the motor that Fig. 1 provides for the utility model;
The left TV structure schematic diagram of cylinder body of the motor that Fig. 2 provides for the utility model;
The intake duct that Fig. 3 the utility model provides and air outlet flue schematic diagram;
In Fig. 1-Fig. 3:
Cylinder cap-11, camshaft-12, phase discriminator assembly-13, preposition oil inlet hole-14, rearmounted oil inlet hole-15, preposition oil input channel-16, rearmounted oil input channel-17, the first annular oil circuit-18, the second annular oil circuit-19, pressure control valve-20, the first valve port-21, the first oil circuit-22, the second valve port-23, the second oil circuit-24, the 3rd valve port-25, the 3rd oil circuit-26, intake duct-27, air outlet flue-28, the first ball recess-29, the second ball recess-30.
Embodiment
This embodiment provides a kind of engine assembly, and pneumatic door control system, intake duct and the air outlet flue of controlling charge flow rate all are optimized, and then have effectively improved the combustion efficiency of engine chamber.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment who obtains, and all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2,
The cylinder body master TV structure schematic diagram of the motor that Fig. 1 provides for the utility model; The left TV structure schematic diagram of cylinder body of the motor that Fig. 2 provides for the utility model.
The cylinder body of a kind of motor provided in the present embodiment, comprise the main body (not shown), cylinder cap 11 and the camshaft 12 be arranged in main body, the housing (not shown) that also to comprise with main body be integral type, housing comprises phase discriminator assembly assembly department and pressure control valve assembly department, camshaft 12 is provided with preposition oil input channel 16 and the rearmounted oil input channel 17 be connected respectively with rearmounted oil inlet hole 15 with the preposition oil inlet hole 14 of phase discriminator assembly 13, cylinder cap 11 is provided with the first annular oil circuit 18 be connected with preposition oil input channel 16 and the second annular oil circuit 19 be connected with rearmounted oil input channel 17, and housing is provided with the first oil circuit 22 that the first valve port 21 of pressure control valve 20 is connected with the first annular oil circuit 18, the second oil circuit 24 that the second valve port 23 of pressure control valve 20 is connected with the operating oil supplying device (not shown) and the 3rd oil circuit 26 that the 3rd valve port 25 of pressure control valve 20 is connected with the second annular oil circuit 19.
So arrange, phase discriminator assembly 13 is arranged on to the phase discriminator assembly assembly department of housing, and the preposition oil inlet hole of phase discriminator assembly 13 14 and the preposition oil input channel 16 of housing are aligned, and should keep sealing between the two, prevent that machine oil from being spilt by the two gap; Equally, the rearmounted oil inlet hole of phase discriminator assembly 13 15 and the rearmounted oil input channel 17 of housing are aligned, and should keep sealing between the two.Pressure control valve 20 is arranged on the pressure control valve assembly department of housing, and the first valve port 21 of pressure control valve 20 is aligned with the first oil circuit 22 of housing, the second valve port 23 aligns with the second oil circuit 24 of housing, and the 3rd valve port 25 aligns with the 3rd oil circuit 26 of housing.
During work, operating oil supplying device passes through the second oil circuit 24 of housing to pressure control valve 20 fuel feeding, when ECU needs the preposition information of air inlet timing by feedback, pressure control valve 20 opens its first valve port 21 by changing valve position, close the second valve port 23 and the 3rd valve port 25, machine oil arrives the first annular oil circuit 18 of cylinder cap 11 by the first oil circuit 22, now, the air inlet timing gear of camshaft 12 and drive phase discriminator assembly 13 are in rotary state, because the first annular oil circuit 18 is annular, therefore the preposition oil input channel 16 of camshaft 12 communicates with the first annular oil circuit 18 all the time, machine oil enters preposition oil input channel 16 by the first annular oil circuit 18, enter again the preposition oil inlet hole 14 of phase discriminator, and then enter the hydrovalve of phase discriminator assembly 13, change the aperture of hydrovalve under the fluid pressure effect, cause the change air inlet phase.
Equally, when ECU needs the information of air inlet timing postposition by feedback, pressure control valve 20 opens its 3rd valve port 25 by changing valve position, close the second valve port 23 and the first valve port 21, machine oil arrives the second annular oil circuit 19 of cylinder cap 11 by the 3rd oil circuit 26, the rearmounted oil input channel 17 of camshaft 12 communicates with the second annular oil circuit 19 all the time, machine oil enters rearmounted oil input channel 17 by the second annular oil circuit 19, enter again the rearmounted oil inlet hole 15 of phase discriminator assembly, and then enter the hydrovalve of phase discriminator assembly 13, change the aperture of hydrovalve under the fluid pressure effect, cause the change air inlet phase.
Obviously, so arrange, engine assembly provided in the present embodiment, do not need to arrange external oil way, only phase discriminator assembly and pressure control valve 20 need be installed in housing, by the utility model scheme, can realize the control of phase discriminator assembly 13 equally, effectively avoided because external oil way is set, and the unsettled problem of the hydraulic pressure caused, and then avoided the aperture of valve to control unsettled problem.
In addition, the cylinder cap of motor provided in the present embodiment, be provided with intake duct 27 and air outlet flue 28 in cylinder cap, and the air inlet aditus laryngis place of intake duct 27 is provided with the first ball recess 29, and the exhaust aditus laryngis place of air outlet flue 28 is provided with the second ball recess 30.
So arrange, engine assembly provided in the present embodiment, because the air inlet aditus laryngis place of its intake duct 27 is provided with the first ball recess 29, the exhaust aditus laryngis place of air outlet flue 28 is provided with the second ball recess 30.While extruding from the gap between valve and cylinder wall after the gas shock valve, can form and roll stream at the first ball recess 29 places, increased Ventialtion rate, simultaneously, the exhaust aditus laryngis place of air outlet flue 28 is provided with the second ball recess 30, same air-flow is during through second ball recess 30 place at the exhaust aditus laryngis place of air outlet flue 28, also can form and roll stream increase Ventialtion rate, so in the balance that does not affect charge flow rate and extraction flow, increase Ventialtion rate, and then improved engine intake airflow.
In sum, engine assembly provided in the present embodiment, be optimized pneumatic door control system, intake duct and air outlet flue is optimized simultaneously, and then effectively improved the combustion efficiency of the firing chamber of engine assembly.
It should be noted that, because air inlet timing gear and phase discriminator assembly 13 are positioned at the end of camshaft 12, in the preferred version of this embodiment, preposition oil input channel 16 and rearmounted oil input channel 17 include axial oil duct and the radial direction oil be connected, and the axial oil duct of preposition oil input channel 16 and rearmounted oil input channel 17 is connected with preposition oil inlet hole 14 and rearmounted oil inlet hole 15 respectively; The radial direction oil of preposition oil input channel 16 and rearmounted oil input channel 17 is connected with the first annular oil circuit 18 and the second annular oil circuit 19 respectively.
So arrange, because the filler opening of radial direction oil is arranged on the circumferential surface of camshaft 12, axially the oil outlet of oil duct is arranged on the end of camshaft 12 and is connected with the oil inlet hole of phase discriminator assembly 13.While rotating due to camshaft 12, the annular oil circuit of cylinder cap 11 communicates with the radial direction oil of camshaft 12 all the time, and the oil inlet hole of phase discriminator assembly 13 communicates with axial oil duct, and then can realize that machine oil can flow in phase discriminator assembly 13.
In another preferred version of this embodiment, the radius of the first ball recess 29 is 5-7mm, and the radius of the second ball recess is 8.5-10.5mm.
Please refer to following table 1, Flow coefficient of inlet correlation data table in the intake duct that table 1 provides for the utility model and prior art.
Table 1
From table 1, can find out intuitively, when valve lift is consistent with the ratio of the diameter of air valve seat ring, if the radius of the first ball recess 29 is made as to 5-7mm, the radius of the second ball recess is made as 8.5-10.5mm, the intake duct that the utility model provides and the flow coefficient of air outlet channel are apparently higher than the flow coefficient of intake duct of the prior art and air outlet channel, and then effectively improved the air inflow of motor, can make the more abundant of air-fuel mixture.
Further, the radius of the first ball recess 29 provided in the present embodiment is 6mm, and the radius of the second ball recess 30 is 9.5mm.The radius of the first ball recess 29 is made as to 6mm, when the radius of the second ball recess 30 is made as 9.5mm, the flow coefficient maximum of the intake duct that the utility model provides and air outlet channel, and then so arrange, the air inflow of motor is also maximum.
In addition, it should be noted that, the VVT system of motor comprises exhaust timing gear and air inlet timing gear, motor air inlet timing gear in operation process drive running by the exhaust timing gear, the proportional relation of the rotating speed of exhaust timing gear and engine speed, the exhaust timing gear of motor and air inlet timing gear are usually as following setting.
Engine exhaust timing gear of the prior art comprise thin tooth and two gears of thick tooth, these two gears are installed on exhaust cam shaft, thin tooth and exhaust cam shaft Spielpassung, thick tooth and exhaust cam shaft interference fit, and thin tooth and thick tooth all are meshed with the air inlet timing gear on admission cam shaft.
This embodiment is by being improved motor VVT system of the prior art, the thick tooth at the exhaust timing gear of VVT system offers annular groove on the end face of thin tooth, anti-backlash is installed in annular groove, one end of anti-backlash and the first locating stud butt, the other end of anti-backlash and the second locating stud butt, the first locating stud and thick tooth fix, and the second locating stud and thin tooth fix, and anti-backlash makes described thin tooth produce the trend that turns clockwise by elastic force; The elastic force that anti-backlash produces described thin tooth is 13Nm～23Nm.
So arrange, under the effect of anti-backlash, make thin tooth produce the trend that turns clockwise, the direction of rotation of air inlet timing gear when this thin tooth spiral transfers toward the direction of gesture and engine operation.During the work of exhaust timing gear, by the moving air inlet gear rotation of thick cingulum, thin tooth to motion in the other direction, reaches the effect of eliminating gap between the inlet and outlet timing gear under the elastic force effect of anti-backlash.
It should be noted that, easily cause if the elastic force of anti-backlash is excessive: the engaging force of inlet and outlet timing gear is large, not only makes the howling of gear in transmission process strengthen but also the working life that can reduce gear.
And if the too small meeting of the elastic force of anti-backlash causes: can't be issued to the gap effect that disappears at the various operating mode rotating speeds of motor, cause the inlet and outlet timing gear to produce in transmission process and beat the tooth abnormal sound.
The utility model is made as 13Nm～23Nm by the elastic force that anti-backlash is produced described thin tooth, closely can not play the effect of the gap that disappears, can also avoid because the engaging force of inlet and outlet timing gear is large, and the howling of the gear caused in transmission process strengthens and can reduce the problem in the working life of gear.
Above a kind of engine assembly provided by the utility model is described in detail, applied specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (5)
1. an engine assembly, comprise main body, be provided with the cylinder cap of intake duct and air outlet flue, be arranged at the camshaft in described main body, the VVT system, it is characterized in that, the housing that also to comprise with described main body be integral type, described housing comprises phase discriminator assembly assembly department and pressure control valve assembly department, described camshaft is provided with preposition oil input channel and the rearmounted oil input channel be connected respectively with rearmounted oil inlet hole with the preposition oil inlet hole of phase discriminator assembly, described cylinder cap is provided with the first annular oil circuit be connected with described preposition oil input channel and the second annular oil circuit be connected with described rearmounted oil input channel, and described housing is provided with the first oil circuit that the first valve port of pressure control valve is connected with the described first annular oil circuit, the 3rd oil circuit that the 3rd valve port of the second oil circuit that the second valve port of described pressure control valve is connected with operating oil supplying device and described pressure control valve is connected with the described second annular oil circuit, and the air inlet aditus laryngis place of described intake duct is provided with the first ball recess, the exhaust aditus laryngis place of described air outlet flue is provided with the second ball recess.
2. engine assembly as claimed in claim 1, it is characterized in that, described preposition oil input channel and described rearmounted oil input channel include axial oil duct and the radial direction oil be connected, and the axial oil duct of described preposition oil input channel and described rearmounted oil input channel is connected with described preposition oil inlet hole and described rearmounted oil inlet hole respectively; The radial direction oil of described preposition oil input channel and described rearmounted oil input channel is connected with the described first annular oil circuit and the described second annular oil circuit respectively.
3. engine assembly as claimed in claim 1, is characterized in that, the radius of described the first ball recess is 5-7mm, and the radius of described the second ball recess is 8.5-10.5mm.
4. engine assembly as claimed in claim 3, is characterized in that, the radius of described the first ball recess is 6mm, and the radius of described the second ball recess is 9.5mm.
5. engine assembly as claimed in claim 1, it is characterized in that, the thick tooth of the exhaust timing gear of described VVT system offers annular groove on the end face of thin tooth, in described annular groove, anti-backlash is installed, one end of described anti-backlash and the first locating stud butt, the other end of described anti-backlash and the second locating stud butt, described the first locating stud and described thick tooth fix, described the second locating stud and described thin tooth fix, and described anti-backlash makes described thin tooth produce the trend that turns clockwise by elastic force; The elastic force that described anti-backlash produces described thin tooth is 13Nm～23Nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201227916U CN203335153U (en) | 2013-03-18 | 2013-03-18 | Engine assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201227916U CN203335153U (en) | 2013-03-18 | 2013-03-18 | Engine assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335153U true CN203335153U (en) | 2013-12-11 |
Family
ID=49703830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201227916U Withdrawn - After Issue CN203335153U (en) | 2013-03-18 | 2013-03-18 | Engine assembly |
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| Country | Link |
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| CN (1) | CN203335153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174488B (en) * | 2013-03-18 | 2016-08-17 | 力帆实业(集团)股份有限公司 | A kind of engine assembly |
-
2013
- 2013-03-18 CN CN2013201227916U patent/CN203335153U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174488B (en) * | 2013-03-18 | 2016-08-17 | 力帆实业(集团)股份有限公司 | A kind of engine assembly |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131211 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |