CN207660659U - A kind of engine pressure relief and engine - Google Patents
A kind of engine pressure relief and engine Download PDFInfo
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- CN207660659U CN207660659U CN201721434005.0U CN201721434005U CN207660659U CN 207660659 U CN207660659 U CN 207660659U CN 201721434005 U CN201721434005 U CN 201721434005U CN 207660659 U CN207660659 U CN 207660659U
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- camshaft
- limit arm
- engine
- pressure relief
- isolator
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Abstract
The utility model is related to technical field of engines, a kind of engine pressure relief and engine are disclosed.The engine pressure relief that the embodiments of the present invention provide, works as engine misses, when the bent axle of engine inverts, camshaft inverts, and position-limit mechanism allows limiting section to pass through when camshaft inverts, and the outer ring of isolator is made to be inverted with camshaft.Pressure release protrusion contacts end in contact when the outer ring of isolator is inverted with camshaft with second, so that exhaust valve rocker is swung.Exhaust valve rocker drives exhaust valve to open in swing process, pressure release is carried out to the cylinder of engine, to reduce the torsion that bent axle is exported in reversion moment.In this way, playing the role of the device (such as freewheel clutch) that protection is connect with bent axle, the service life for the device being connect with bent axle is improved.
Description
Technical field
The utility model is related to technical field of engines more particularly to a kind of engine pressure reliefs, and have the hair
The engine of motivation pressure relief.
Background technology
Four-stroke engine is under severe applying working condition, it may occur however that flame-out situation.Especially when the piston of engine
When positioned at top dead centre, if engine misses, since there are larger pressure in cylinder at this time, engine crankshaft will be caused anti-
Turn, bent axle reversion moment export excessive torsion, will cause the device (such as freewheel clutch) being connect with bent axle by
Big transient load causes the service using life being connect with bent axle to substantially reduce.
Utility model content
The purpose of this utility model is to provide a kind of engine pressure reliefs, in engine misses, engine to be bent
It drives exhaust valve to open when axis inverts, pressure release is carried out to the cylinder of engine, and then reduce torsion of the bent axle in reversion moment output
Power.
Another of the utility model is designed to provide a kind of engine comprising above-mentioned engine pressure relief.
The embodiments of the present invention are achieved through the following technical solutions：
A kind of engine pressure relief, including：Inlet valve rocker has the first contact jaw；Exhaust valve rocker has second
Contact jaw；The camshaft coordinated respectively with the first contact jaw and the second contact jaw；It is sheathed on the isolator of camshaft；And limit
Mechanism；Wherein, the outer ring of isolator is provided with the pressure release protrusion of limiting section and radially protruding；Position-limit mechanism be used for camshaft just
It is leaned on limiting section support when turning, to prevent the outer ring of isolator from being rotated forward with camshaft；Position-limit mechanism is used to permit when camshaft inverts
Perhaps limiting section passes through, and the outer ring of isolator is made to be inverted with camshaft；Pressure release protrusion is used for anti-with camshaft in the outer ring of isolator
The second contact jaw is pushed when turning, so that exhaust valve rocker is swung.
Further, position-limit mechanism includes fixing piece, elastic component and position limit arm；Position limit arm movably connects with fixing piece
It connects, for back and forth being transported between the latched position and the unlocked position for allowing the reversion of isolator outer ring for preventing isolator outer ring from rotating forward
It is dynamic；Elastic component is for applying to elastic force position limit arm, so that position limit arm has the trend moved to latched position；Work as camshaft
When rotating forward, position limit arm is located at latched position, limiting section and position limit arm against；When camshaft inverts, limiting section intermittently with
Position limit arm coordinates, and position limit arm is pushed to move to unlocked position by latched position.
Further, lock face and mating surface are provided on position limit arm；When camshaft rotates forward, position limit arm is located at locking bit
Set, limiting section and lock face against；When camshaft inverts, limiting section is intermittently slidably engaged with mating surface, and is pushed away
Dynamic position limit arm moves to unlocked position by latched position.
Further, lock face and mating surface are provided on limiting section；When camshaft rotates forward, position limit arm is located at locking bit
Set, position limit arm and lock face against；When camshaft inverts, mating surface is intermittently slidably engaged with position limit arm, and is pushed away
Dynamic position limit arm moves to unlocked position by latched position.
Further, position limit arm is rotatably coupled with fixing piece.Further, position-limit mechanism further includes shaft, limit
Arm is rotatably coupled by shaft and fixing piece；Elastic component is torsional spring, and is set in shaft；One end of elastic component and fixation
Part connects；The other end of elastic component is connect with position limit arm.
Further, position limit arm is slidably connected with fixing piece.
Further, elastic component is compression spring；One end of elastic component is connect with fixing piece；The other end and position limit arm of elastic component
Connection.
Further, limiting section is the protrusion projected radially outward by the outer ring of isolator.
Further, limiting section is the groove being radially-inwardly recessed by the outer ring of isolator.
Further, when camshaft rotates forward and position-limit mechanism and limiting section support are leaned on, along the direction that camshaft rotates forward, second
Contact jaw, pressure release protrusion and the first contact jaw are arranged in order.
A kind of engine, including any one of the above engine pressure relief.
The technical solution of the utility model at least has the advantages that：
The engine pressure relief that the embodiments of the present invention provide, works as engine misses, and the bent axle of engine occurs
When reversion, camshaft inverts, and position-limit mechanism allows limiting section to pass through when camshaft inverts, and makes the outer ring of isolator with convex
Wheel shaft reverse turn.Pressure release protrusion contacts end in contact when the outer ring of isolator is inverted with camshaft with second, so that exhaust valve rocker
It swings.Exhaust valve rocker drives exhaust valve to open in swing process, pressure release is carried out to the cylinder of engine, to reduce song
Torsion of the axis in reversion moment output.In this way, playing the role of the device (such as freewheel clutch) that protection is connect with bent axle, carry
The service life for the device that height is connect with bent axle.
The engine that the embodiments of the present invention provide also has due to having above-mentioned engine pressure relief
Low bent axle make preparation for dropping in the torsion of reversion moment output, protects the device being connect with bent axle, improves the longevity for the device being connect with bent axle
The advantageous effect of life.
Description of the drawings
It is to be used attached to being needed in embodiment below for the clearer technical solution for illustrating the utility model embodiment
Figure is briefly described.It should be appreciated that the following drawings illustrates only the certain embodiments of the utility model, it is not construed as pair
The limitation of the scope of the utility model.To those skilled in the art, without creative efforts, Neng Gougen
Other accompanying drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the engine that the embodiments of the present invention 1 provide；
Fig. 2 is the structural schematic diagram of engine pressure relief in the engine that the embodiments of the present invention 1 provide；
Fig. 3 is the structural schematic diagram of isolator in the embodiments of the present invention 1；
Fig. 4 is the structural schematic diagram of engine pressure relief in the engine that the embodiments of the present invention 2 provide.
In figure：010- engines；101- cylinders；102- pistons；103- piston rods；104- bent axles；105- crankshaft toothed wheels；
106- timing chains；107- air intake ducts；108- exhaust ducts；109- inlet valves；110- exhaust valves；111- inlet-valve springs；112-
Exhaust valve spring；113- cam shaft gears；114- fixing axles；200- engine pressure reliefs；210- inlet valve rockers；211-
One contact jaw；The first connecting pins 212-；220- exhaust valve rockers；The second contact jaws of 221-；222- second connection ends；230- cams
Axis；240- isolators；240a- lock faces；240b- mating surfaces；The outer rings 241-；241a- limiting sections；241b- pressure release protrusions；242-
Inner ring；243- springs；244- rollers；245- holding tanks；250- position-limit mechanisms；251- fixing pieces；252- elastic components；253- is limited
Arm；253a- lock faces；253b- mating surfaces；254- shafts.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing, to this
Technical solution in utility model embodiment carries out clear, complete description.Obviously, described embodiment is the utility model
A part of the embodiment, instead of all the embodiments.
Therefore, this claimed practicality is not intended to limit newly to the detailed description of the embodiments of the present invention below
The range of type, but it is merely representative of the section Example of the utility model.Based on the embodiments of the present invention, this field is general
The every other embodiment that logical technical staff is obtained without creative efforts belongs to the utility model guarantor
The range of shield.
It should be noted that in the absence of conflict, feature in the embodiments of the present invention and embodiment and
Technical solution can be combined with each other.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that term " first ", " second " etc. are only used for distinguishing description,
It is not understood to indicate or imply relative importance.
Embodiment 1：
Fig. 1 is the structural schematic diagram of engine 010 provided in this embodiment.Fig. 1 is please referred to, in the present embodiment, is started
Machine 010 is four-stroke engine comprising cylinder 101, piston 102, piston rod 103, bent axle 104, crankshaft toothed wheel 105, timing
Chain 106, air intake duct 107, exhaust duct 108, inlet valve 109, exhaust valve 110, exhaust valve spring 111, exhaust valve spring 112,
Cam shaft gear 113 and engine pressure relief 200.
Fig. 2 is the structural schematic diagram of engine pressure relief 200 in engine 010 provided in this embodiment.Incorporated by reference to ginseng
According to Fig. 1 and Fig. 2, in the present embodiment, engine pressure relief 200 includes inlet valve rocker 210, exhaust valve rocker 220, cam
Axis 230, isolator 240 and position-limit mechanism 250.
Piston 102 can be slidably arranged in along 101 axis of cylinder in cylinder 101, one end and the piston 102 of piston rod 103
It is rotatably coupled, the other end and the bent axle 104 of piston rod 103 are rotatably coupled.When piston 102 done in cylinder 101 it is past
When moving again, piston 102 is rotated by piston rod 103 with dynamic crankshaft 104, and then exports power.
Air intake duct 107 and exhaust duct 108 are connected to the inside of cylinder 101 respectively.Inlet valve 109 is set to air intake duct 107,
Inlet valve 109 can be moved along own axes, and the outlet for controlling air intake duct 107 opens or closes.It is covered on inlet valve 109
Equipped with inlet-valve spring 111, inlet-valve spring 111 applies along its axial elastic force inlet valve 109, and inlet valve 109 is made to begin
Has the trend moved to the position for closing the outlet of air intake duct 107 eventually.Exhaust valve 110 is set to exhaust duct 108, exhaust valve 110
It can be moved along own axes, the import for controlling exhaust duct 108 opens or closes.Exhaust is arranged on exhaust valve 110
Door spring 112, exhaust valve spring 112 apply along its axial elastic force exhaust valve 110, make exhaust valve 110 have always to
Close the trend of the position movement of the import of exhaust duct 108.
The movement of inlet valve 109 and exhaust valve 110 is controlled by engine pressure relief 200.210 He of inlet valve rocker
Exhaust valve rocker 220 is rotatably arranged in fixing axle 114.The both ends of inlet valve rocker 210 are respectively the first contact jaw 211
With the first connecting pin 212.The both ends of exhaust valve rocker 220 are respectively the second contact jaw 221 and second connection end 222.Inlet valve
First connecting pin 212 of rocking arm 210 is connect with the end of inlet valve 109.The second connection end 222 of exhaust valve rocker 220 and row
The end of valve 110 connects.Camshaft 230 is located at the first contact jaw 211 and exhaust valve rocker 220 of inlet valve rocker 210
The second contact jaw 221 between.And the second contact of the first contact jaw 211 and exhaust valve rocker 220 of inlet valve rocker 210
End 221 is contacted with the outer surface of camshaft 230.
Cam shaft gear 113 is arranged on camshaft 230, and crankshaft toothed wheel 105 is arranged on bent axle 104.Cam shaft gear
It is connected by timing chain 106 between 113 and crankshaft toothed wheel 105.When bent axle 104 rotates, crankshaft toothed wheel 105 is with bent axle
104 rotations, crankshaft toothed wheel 105 drive cam shaft gear 113 to rotate by timing chain 106, and then cam shaft gear 113 drives
Camshaft 230 rotates.Camshaft 230 pushes 210 He of inlet valve rocker in rotation process, by the protrusion on camshaft 230
220 regular swing of exhaust valve rocker, and then drive inlet valve 109 and exhaust valve 110 is regular opens or closes.
During 010 air inlet of engine, piston 102 is located at lower dead center, and inlet valve 109 is opened, and exhaust valve 110 closes
It closes.Air and fuel oil enter cylinder 101 by air intake duct 107.During engine 010 compresses, piston 102 moves to
Stop, inlet valve 109 and exhaust valve 110 are turned off, and the air and fuel oil in cylinder 101 are compressed.Then spark plug is (not shown
Go out) fuel oil in cylinder 101, fuel oil burning outburst are lighted, driving piston 102 moves to lower dead center.Then piston 102 moves to
The exhaust gas in cylinder 101 is discharged for top dead centre, the at this time opening of exhaust valve 110, the closing of inlet valve 109.By air inlet, compression, quick-fried
Hair and exhaust Four processes, piston 102 are constantly rotated by piston rod 103 with dynamic crankshaft 104, and bent axle 104 outputs power to
Device (such as freewheel clutch) connected to it, realizes the output of power.
If engine 010 stops working, engine 010 is in compressive state, and piston 102 is located at top dead centre, at this time vapour
There are larger pressure in cylinder 101, piston 102 will be pushed to be moved to lower dead center, bent axle 104 is likely to occur reversion at this time.By
There are larger pressure in cylinder 101, therefore bent axle 104, in the larger torsion of reversion moment output, this will cause and bent axle
The device (such as freewheel clutch) of 104 connections is caused the device being connect with bent axle 104 to use the longevity by excessive transient load
Life substantially reduces.
For this purpose, in the present embodiment, engine pressure relief 200 further includes isolator 240 and position-limit mechanism 250.Fig. 3
For the structural schematic diagram of isolator in the present embodiment 240.Fig. 3 is please referred to, isolator 240 includes outer ring 241, inner ring 242, spring
243 and roller 244.Outer ring 241 is rotationally sheathed on inner ring 242.Inner peripheral surface in outer ring 241 offers holding tank 245.
The directions B of Fig. 3, i.e., in reverse directions, spring 243 and roller 244 are successively set in holding tank 245.Also, along the directions B, hold
The depth of slot 245 received continuously decreases.Along the directions B, the depth of the end of holding tank 245 is less than the diameter of roller 244.Spring 243
Elastic force along the directions B is applied to roller 244, roller 244 is made to have the end movement to holding tank 245 along B directions always
Trend.When inner ring 242 is rotated along the directions B, roller 244 moves to holding tank 245 along the end in the directions B, and then is connected to outer
Between circle 241 and inner ring 242, roller 244 can not rotate so that inner ring 242 can drive outer ring 241 to be rotated synchronously along the directions B.
When A direction of the inner ring 242 in Fig. 3, i.e., when rotating forward rotates backward, the drive roller 244 of inner ring 242 overcomes the elasticity of spring 243
Power is far from holding tank 245 along the end in the directions B, and roller 244 can be freely rotated at this time, and then it is static to may be implemented outer ring 241,
And the effect that inner ring 242 freely rotates forward.The inner ring 242 of isolator 240 is socketed on camshaft 230, synchronous with camshaft 230 to turn
It is dynamic.The pressure release protrusion 241b of limiting section 241a and radially protruding are set on the outer ring 241 of isolator 240.
In normal operation, bent axle 104 rotates forward engine 010, i.e., is rotated along the directions A.Camshaft 230 is with bent axle
104 rotate forward, and the inner ring 242 of isolator 240 is rotated forward with camshaft 230.At this point, the outer ring of position-limit mechanism 250 and isolator 240
Limiting section 241a on 241 is against making 241 remains stationary of outer ring of isolator 240.When engine 010 is flame-out and bent axle 104 is anti-
When turning, camshaft 230 is inverted with bent axle 104, and the inner ring 242 of isolator 240 is inverted with camshaft 230, and then drives isolator
240 outer ring 241 inverts.During the outer ring of isolator 240 241 inverts, position-limit mechanism 250 allows on outer ring 241
Limiting section 241a passes through so that isolator 240 is whole constantly to be inverted with camshaft 230.In the outer ring of isolator 240
During 241 reversions, pressure release protrusion 241b pushes the second contact jaw 221 of exhaust valve rocker 220, so that exhaust valve rocker
220 swing.Exhaust valve rocker 220 is swung, and driving exhaust valve 110 is opened, and pressure release is carried out to the cylinder 101 of engine 010, to
Reduce the torsion that bent axle 104 is exported in reversion moment.In this way, playing device that protection connect with bent axle 104 (such as overdrive clutch
Device) effect, improve the service life of device being connect with bent axle 104.
In the present embodiment, when camshaft 230 rotates forward and position-limit mechanism 250 and limiting section 241a against when, along camshaft
230 directions (i.e. the directions A) rotated forward, the second contact jaw 221, pressure release protrusion 241b and the first contact jaw 211 are arranged in order.This
Sample, once camshaft 230 inverts, pressure release protrusion 241b can connect with the second contact jaw 221 of exhaust valve rocker 220 immediately
It touches, pushes the second contact jaw 221, exhaust valve rocker 220 is made to swing.In this way, can immediately be opened when bent axle 104 inverts
Exhaust valve 110 carries out pressure release to the cylinder 101 of engine 010, improves functional reliability.
Position-limit mechanism 250 includes fixing piece 251, elastic component 252 and position limit arm 253.Position limit arm 253 can with fixing piece 251
It is movably connected with, the outer ring 241 of latched position and permission isolator 240 for being rotated forward in the outer ring 241 for preventing isolator 240
It is moved back and forth between the unlocked position of reversion.Elastic component 252 is for applying to elastic force position limit arm 253, so that position limit arm 253
Has the trend moved to latched position.When camshaft 230 rotates forward, position limit arm 253 is located at latched position, limiting section 241a with
Position limit arm 253 against.When camshaft 230 inverts, limiting section 241a intermittently coordinates with position limit arm 253, and pushes limit
Arm 253 by latched position moves to unlocked position, and (in fig. 2, position limit arm 253 is located at latched position and limiting section 241a and limit
Arm 253 against).
Fig. 2 is please referred to, in the present embodiment, position limit arm 253 is rotatably coupled with fixing piece 251.Specifically, position restrainer
Structure 250 further includes shaft 254, and position limit arm 253 is rotatably coupled by shaft 254 and fixing piece 251.Elastic component 252 is to turn round
Spring, and be set in shaft 254；One end of elastic component 252 is connect with fixing piece 251；The other end and position limit arm of elastic component 252
253 connections.Elastic component 252 applies position limit arm 253 elastic force along the directions B, and position limit arm 253 is made to have always to latched position
The trend of movement.Lock face 253a and mating surface 253b are additionally provided on position limit arm 253.When camshaft 230 rotates forward, position limit arm
253 are located at latched position, limiting section 241a and lock face 253a against.When camshaft 230 inverts, limiting section 241a is intermittent
Ground is slidably engaged with mating surface 253b, and position limit arm 253 is pushed to overcome the elastic force of elastic component 252, is transported by latched position
It moves to unlocked position, so that position limit arm 253 allows limiting section 241a to pass through.In the present embodiment, limiting section 241a is by unidirectional
The protrusion that the outer ring 241 of device 240 projects radially outward.
Embodiment 2：
The present embodiment also provides a kind of engine, essentially identical with the engine 010 described in embodiment 1, difference
It is in engine pressure relief 200 is different.Fig. 4 is the structural schematic diagram of engine pressure relief 200 in the present embodiment.Please
With reference to Fig. 4, in the present embodiment, limiting section 241a is the groove being radially-inwardly recessed by the outer ring 241 of isolator 240.Limit
The side inner wall of portion 241a is lock face 240a, and other side inner wall opposite limiting section 241a is mating surface 240b.Position limit arm 253
It is slidably connected with fixing piece 251, in the latched position for being inserted into limiting section 241a, and the unlock of disengaging limiting section 241a
It is moved between position.Elastic component 252 is compression spring.One end of elastic component 252 is connect with fixing piece 251；The other end of elastic component 252
It is connect with position limit arm 253.Elastic component 252 applies elastic force to position limit arm 253, and position limit arm 253 is made to have always to isolator 240
The trend of movement.In Fig. 4, position limit arm 253 is located at latched position, and position limit arm 253 is inserted into limiting section 241a, position limit arm 253 with
Lock face 240a contacts.When camshaft 230 inverts, mating surface 240b is slidably engaged with position limit arm 253, pushes position limit arm
253 overcome the elastic force of elastic component 252, and unlocked position is moved to by latched position, so that position limit arm 253 allows limiting section 241a
Pass through.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (12)
1. a kind of engine pressure relief, which is characterized in that including：
Inlet valve rocker has the first contact jaw；
Exhaust valve rocker has the second contact jaw；
The camshaft coordinated respectively with first contact jaw and second contact jaw；
It is sheathed on the isolator of the camshaft；And
Position-limit mechanism；
Wherein, the outer ring of the isolator is provided with the pressure release protrusion of limiting section and radially protruding；The position-limit mechanism is used for
The camshaft leans on when rotating forward with the limiting section support, to prevent the outer ring of the isolator from being rotated forward with the camshaft；It is described
Position-limit mechanism makes the outer ring of the isolator with the cam for allowing the limiting section to pass through when the camshaft inverts
Axis inverts；The pressure release protrusion is for pushing second contact when the outer ring of the isolator is inverted with the camshaft
End, so that the exhaust valve rocker is swung.
2. engine pressure relief according to claim 1, it is characterised in that：
The position-limit mechanism includes fixing piece, elastic component and position limit arm；
The position limit arm is movably connected with the fixing piece, in the latched position for preventing the isolator outer ring from rotating forward
And allow to move back and forth between the unlocked position of the isolator outer ring reversion；The elastic component is used to apply the position limit arm
To elastic force, so that the position limit arm has the trend moved to the latched position；
When the camshaft rotates forward, the position limit arm is located at the latched position, the limiting section and the position limit arm against；
When the camshaft inverts, the limiting section intermittently with the position limit arm coordinate, and push the position limit arm by
The latched position moves to the unlocked position.
3. engine pressure relief according to claim 2, it is characterised in that：
It is provided with lock face and mating surface on the position limit arm；
When the camshaft rotates forward, the position limit arm is located at the latched position, the limiting section and the lock face against；
When the camshaft inverts, the limiting section is intermittently slidably engaged with the mating surface, and described in promotion
Position limit arm moves to the unlocked position by the latched position.
4. engine pressure relief according to claim 2, it is characterised in that：
It is provided with lock face and mating surface on the limiting section；
When the camshaft rotates forward, the position limit arm is located at the latched position, the position limit arm and the lock face against；
When the camshaft inverts, the mating surface is intermittently slidably engaged with the position limit arm, and described in promotion
Position limit arm moves to the unlocked position by the latched position.
5. engine pressure relief according to claim 2, it is characterised in that：
The position limit arm is rotatably coupled with the fixing piece.
6. engine pressure relief according to claim 5, it is characterised in that：
The position-limit mechanism further includes shaft, and the position limit arm is rotatably coupled by the shaft and the fixing piece；Institute
It is torsional spring to state elastic component, and is set in the shaft；One end of the elastic component is connect with the fixing piece；The elastic component
The other end connect with the position limit arm.
7. engine pressure relief according to claim 2, it is characterised in that：
The position limit arm is slidably connected with the fixing piece.
8. engine pressure relief according to claim 7, it is characterised in that：
The elastic component is compression spring；One end of the elastic component is connect with the fixing piece；The other end of the elastic component and institute
State position limit arm connection.
9. the engine pressure relief according to any one of claim 1-8, it is characterised in that：
The limiting section is the protrusion projected radially outward by the outer ring of the isolator.
10. the engine pressure relief according to any one of claim 1-8, it is characterised in that：
The limiting section is the groove being radially-inwardly recessed by the outer ring of the isolator.
11. the engine pressure relief according to any one of claim 1-8, it is characterised in that：
When the camshaft rotates forward and the position-limit mechanism and the limiting section support are leaned on, along the direction that the camshaft rotates forward,
Second contact jaw, pressure release protrusion and first contact jaw are arranged in order.
12. a kind of engine, it is characterised in that：
Including the engine pressure relief described in any one of claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434005.0U CN207660659U (en) | 2017-10-31 | 2017-10-31 | A kind of engine pressure relief and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434005.0U CN207660659U (en) | 2017-10-31 | 2017-10-31 | A kind of engine pressure relief and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207660659U true CN207660659U (en) | 2018-07-27 |
Family
ID=62937686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721434005.0U Expired - Fee Related CN207660659U (en) | 2017-10-31 | 2017-10-31 | A kind of engine pressure relief and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207660659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500157A (en) * | 2019-09-12 | 2019-11-26 | 江门市大长江集团有限公司 | Position limiting structure and engine cylinder head decompressor |
-
2017
- 2017-10-31 CN CN201721434005.0U patent/CN207660659U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500157A (en) * | 2019-09-12 | 2019-11-26 | 江门市大长江集团有限公司 | Position limiting structure and engine cylinder head decompressor |
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| GR01 | Patent grant | ||
| 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: 20180727 Termination date: 20211031 |