CN204098983U - The engine of tool decompressor - Google Patents
The engine of tool decompressor Download PDFInfo
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- CN204098983U CN204098983U CN201420530305.9U CN201420530305U CN204098983U CN 204098983 U CN204098983 U CN 204098983U CN 201420530305 U CN201420530305 U CN 201420530305U CN 204098983 U CN204098983 U CN 204098983U
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Abstract
The utility model, about a kind of engine of tool decompressor, includes: a cylinder head, a bent axle, a starting drive, a control unit, an one-way fashion decompressor and a centrifugal decompressor.Wherein, when the bent axle reversion of engine, one-way fashion decompressor acts on the intake rocker of cylinder head and one of them of exhaust rocker arm, make one of them unlatching one first micro-stroke of air intake valve and drain tap, and centrifugal decompressor is under a desired speed of bent axle, act on one of them of intake rocker and exhaust rocker arm, one of them making air intake valve and drain tap opens one second micro-stroke.Therefore, configure two decompressor starts, more can reduce the energy that starting drive drives crankshaft rotating to consume.
Description
Technical field
The utility model about a kind of engine of tool decompressor, espespecially a kind of engine being applicable to the tool decompressor of locomotive.
Background technique
In existing internal combustion engine, for solving after bent axle stops in cutting the engine, when next time starts, running into the problem that compression stroke need overcome larger startup impedance, develop so-called engine pressure-release device.
Refer to Fig. 1 and Fig. 2, its be respectively do not install decompressor and installing centrifugal decompressor engine start time starting motor energy dissipation figure.As shown in Figure 1, its transverse axis represents that starting motor drives the time of crankshaft rotating, the longitudinal axis represents that starting motor drives the consume energy of crankshaft rotating, the engine of non-device decompressor, its starting motor drives the consume energy curve (i.e. the product of voltage and electric current) of crankshaft rotating, drive process produces larger voltage and curent change through gas compression stroke because resistance becomes large, therefore consumes larger energy.Separately, be equiped with prior art as the TaiWan, China patent No.: the engine of the centrifugal decompressor shown in M418968, its starting motor drives the consume energy curve of crankshaft rotating as shown in Figure 2, consume energy compared to its each compression stroke of engine of non-device centrifugal decompressor reduces, and namely A1, A2, A3 is as shown in Figure 1 reduced to B1, B2, the B3 shown in Fig. 2.
Referring again to Fig. 3 and Fig. 4, starting motor energy dissipation figure when it is respectively the engine start not installing decompressor and installing one-way fashion decompressor.As shown in the figure, its transverse axis represents that starting motor drives the time of crankshaft rotating, the longitudinal axis represents that starting motor drives the consume energy of crankshaft rotating, be equiped with the engine that prior art sees TaiWan, China patent No. M406645 one-way fashion decompressor, its starting motor drives first compression stroke of crankshaft rotating almost to eliminate impedance completely, so consume energy lowers a lot, namely the C1 shown in Fig. 3, almost eliminate completely on Fig. 4, but second compression stroke does not then have decompression later, namely the C2 shown in Fig. 3, be still D2 on Fig. 4, so have identical consume energy with the situation of being unkitted decompressor.
By above-mentioned two situations, the known engine only arranging at present a kind of decompressor, its still have can reduce again starting motor drive crankshaft rotating consume the space of energy, the starting torque demand that provides required for starting drive so can be made lower.
Model utility content
Main purpose of the present utility model ties up to the configuration being supplied to a kind of integrated decompressor of engine, and the starting torque demand that provides required for starting drive can be made lower, thus can reduce the energy that starting drive drives crankshaft rotating to consume.
For reaching above-mentioned purpose, the engine of tool decompressor of the present utility model includes: a cylinder head, a bent axle, a starting drive, a control unit and two decompressors.Cylinder head has an air intake valve, a drain tap, an intake rocker and an exhaust rocker arm; The bent axle of starting drive and engine links; Control unit is in order to control starting drive; Two decompressors comprise an one-way fashion decompressor and a centrifugal decompressor.Wherein, when the bent axle reversion of engine, one-way fashion decompressor acts on the intake rocker of cylinder head and one of them of exhaust rocker arm, make one of them unlatching one first micro-stroke of air intake valve and drain tap, and centrifugal decompressor is under a desired speed of bent axle, act on one of them of intake rocker and exhaust rocker arm, make the one of air intake valve and drain tap open one second micro-stroke.
Above-mentioned one-way fashion decompressor and centrifugal decompressor can arrange and act on same intake rocker or same exhaust rocker arm, and this second micro-stroke is lower than this first micro-stroke.
Produce effect of easing stress when above-mentioned one-way fashion decompressor rotates forward after reversing again, this effect of easing stress can be the complete decompression of compression stroke, and this is that centrifugal decompressor cannot be reached.Therefore, one-way fashion decompressor is configured at outlet valve stroke or suction valve stroke and centrifugal decompressor is configured at outlet valve stroke by the utility model, in order to ensure the complete effect of easing stress allowing one-way fashion decompressor can play first time compression stroke completely, the Valve travel of one-way fashion decompressor must be greater than the Valve travel of centrifugal decompressor.
Therefore, one-way fashion decompressor of the present utility model provide starting motor drive crankshaft rotating first time compression stroke complete decompression, the relief cam of one-way fashion decompressor rotates and lose pressure-reducing function to position location subsequently, the decompression of the compression stroke that second time is later changes to be provided by the centrifugal device that subtracts, until engine start runs well to a specific rotation speeds, centrifugal decompressor just loses decompression.That is, when one-way fashion decompressor and centrifugal decompressor act on different rocking arm (as one being intake rocker, one being exhaust rocker arm), the decompression of first time compression stroke can be done simultaneously; When one-way fashion decompressor and centrifugal decompressor act on same rocking arm simultaneously, can different time do the decompression of first time compression stroke, and the later decompression of second time compression stroke is only provided by centrifugal decompressor.
Above-mentioned one-way fashion decompressor can act on intake rocker or the exhaust rocker arm of cylinder head, and air intake valve or drain tap are opened.Centrifugal decompressor then acts on the exhaust rocker arm of cylinder head, and drain tap is opened.
Above-mentioned starting drive can be a startup and to hold concurrently electricity generating device, and it is mounted on the one end of the pto＝power take-off that links with bent axle, and is positioned at a side of bent axle, and the other end of pto＝power take-off then group is provided with a drive transmission device.
Electricity generating device is held concurrently in startup moment when this startup by start principle system of the present utility model, and when it rotates forward and starts rotating speed lower than a desired speed, control unit can export a signal, impels to control to start the electricity generating device angular range that first reverses of holding concurrently and rotate forward.And when starting electricity generating device of holding concurrently and reversing, one-way fashion decompressor then acts on intake rocker or the exhaust rocker arm of cylinder head, makes air intake valve or drain tap open the first micro-stroke.
Above-mentioned control unit can be independently component, also can be integrated in the EOC (Electronic Control Unit:ECU) of car load.
Above-mentioned centrifugal decompressor can include a camshaft, a valve actuation cam, a sprocket wheel, a centrifugal-block, decompression axle, a push rod and a prestressing component.Wherein, sprocket wheel and valve actuation cam are fixedly arranged on camshaft; Centrifugal-block is hubbed on sprocket wheel, and decompression axle is arranged in camshaft, and push rod slippage is in valve actuation cam, and prestressing component then supports centrifugal-block and sprocket wheel respectively.Therefore, when the pretension of centrifugal force suffered by centrifugal-block higher than prestressing component, push rod can be accommodated in valve actuation cam completely, and engine can not produce any decompression.Separately, when the pretension of centrifugal force suffered by centrifugal-block lower than prestressing component, push rod can protrude from outside valve actuation cam, impels exhaust rocker arm to swing, and then drain tap is opened, and side can produce decompression.
Above-mentioned one-way fashion decompressor can include a camshaft, an overrunning clutch, a relief cam, a yoke frame and an elastic component.Wherein, overrunning clutch is sheathed on camshaft, and relief cam is fixedly arranged on the outer shroud side face of overrunning clutch, and elastic component supports yoke frame and intake rocker and exhaust rocker arm one of them respectively.Therefore, when camshaft rotates forward, overrunning clutch can not be coupled and follow cam axle, and engine can not produce any decompression.Separately, when camshaft reverses, rotation followed by overrunning clutch, impels relief cam to follow rotation, reaches engine effect of easing stress.
Accompanying drawing explanation
Fig. 1 system does not install the starting motor energy dissipation figure during engine start of decompressor.
Fig. 2 system installs the starting motor energy dissipation figure during engine start of centrifugal decompressor.
Fig. 3 system does not install the starting motor energy dissipation figure during engine start of decompressor.
Fig. 4 system installs the starting motor energy dissipation figure during engine start of one-way fashion decompressor.
The engine sectional view of Fig. 5 system the utility model first preferred embodiment.
The decompressor stereogram of Fig. 6 system the utility model first preferred embodiment.
The decompressor exploded view of Fig. 7 system the utility model first preferred embodiment.
Fig. 8 A and 8B system do not install starting motor energy dissipation figure when the centrifugal engine start with one-way fashion decompressor is installed in the engine of decompressor and the utility model first preferred embodiment simultaneously.
The decompressor stereogram of Fig. 9 system the utility model second preferred embodiment.
The decompressor exploded view of Figure 10 system the utility model second preferred embodiment.
[symbol description]
10 bent axle 11 pto＝power take-offs
13 starting drive 15 drive transmission devices
20,50 cylinder head 30,60 one-way fashion decompressors
31,61 camshaft 32,62 relief cams
33,63 pitman arm shaft 34,88 exhaust rocker arms
35,65 yoke frame 36,66 elastic components
37 drain tap 39,69 overrunning clutchs
40,70 centrifugal decompressor 41,71 pivot posts
42,72 centrifugal-blocks 43,73 decompression axles
44,74 prestressing component 45,75 sprocket wheels
46,76 holding flange 47,77 bearings
48,78 valve actuation cam 49,79 push rods
64 intake rocker 68 air intake valves
Embodiment
Understand for the ease of persons skilled in the art and realize the utility model, now describing embodiment of the present utility model by reference to the accompanying drawings.
Refer to Fig. 5, Fig. 6 and Fig. 7, it is respectively the engine sectional view of the utility model first preferred embodiment, decompressor stereogram and exploded view.The engine of the tool decompressor of the present embodiment includes: cylinder head 20, bent axle 10, starting drive 13, control unit and two decompressors.Cylinder head 20 has an air intake valve, drain tap 37, intake rocker and an exhaust rocker arm 34; The bent axle 10 of starting drive and engine links; Control unit is in order to control starting drive 13; Two decompressors include one-way fashion decompressor 30 and a centrifugal decompressor 40.Wherein, when the bent axle 10 of engine reverses, one-way fashion decompressor 30 acts on the exhaust rocker arm 34 of cylinder head 20, drain tap 37 is made to open one first micro-stroke, and centrifugal decompressor 40 is under a desired speed of bent axle 10, also act on exhaust rocker arm 34, make drain tap 37 open one second micro-stroke.
In the present embodiment, one-way fashion decompressor 30 is arranged at the exhaust rocker arm 34 of cylinder head 20, and then impel drain tap 37 to open one first micro-stroke, and centrifugal decompressor 40 is also arranged at the exhaust rocker arm 34 of cylinder head 20, and then impelling drain tap 37 to open one second micro-stroke, this second micro-stroke is lower than this first micro-stroke.
With regard to the action principle of one-way fashion decompressor 30, it is the technology commonly used, and be only simply described below at this, detailed start principle can with reference to TaiWan, China patent No. M406645.
One-way fashion decompressor 30 mainly includes camshaft 31, overrunning clutch 39, relief cam 32, yoke frame 35 and an elastic component 36.Overrunning clutch 39 is sheathed on the camshaft 31 of cylinder head 20, and relief cam 32 is fixedly arranged on the outer shroud side face of overrunning clutch 39, and elastic component 36 supports yoke frame 35 and exhaust rocker arm 34 respectively, and exhaust rocker arm 34 is arranged with a pitman arm shaft 33.When camshaft 31 rotates forward, overrunning clutch 39 can not be coupled and follow camshaft 31 and rotate, and engine can not produce any decompression.And when camshaft 31 reverses, rotation followed by overrunning clutch 39, impel relief cam 32 to follow rotation, promote yoke frame 35 and exhaust rocker arm 34 is rotated, and then impelling drain tap 37 to open one first micro-stroke, reaching engine effect of easing stress.
With regard to the action principle of centrifugal decompressor 40, it is the technology commonly used, and be only simply described below at this, detailed start principle can with reference to TaiWan, China patent No. M418968.
Centrifugal decompressor 40 mainly includes camshaft 31, valve actuation cam 48, sprocket wheel 45, centrifugal-block 42, decompression axle 43, push rod 49, pivot post 41, holding flange 46, bearing 47 and a prestressing component 44.Wherein, valve actuation cam 48 is fixedly arranged on the camshaft 31 of cylinder head 20; Pivot post 41 is mounted on sprocket wheel 45, centrifugal-block 42 is hubbed on pivot post 41, decompression axle 43 is arranged in camshaft 31, push rod 49 slippage is in valve actuation cam 48, prestressing component 44 then supports centrifugal-block 42 and sprocket wheel 45 respectively, holding flange 46 is press-fitted on camshaft 31, and sprocket wheel 45 is attached on holding flange 46, and bearing 47 is sheathed on camshaft 31.Therefore, when engine rotates, during the pretension of centrifugal force suffered by centrifugal-block 42 higher than prestressing component 44, centrifugal-block 42 drives decompression axle 43 to rotate, and impel push rod 49 slippage and be accommodated in valve actuation cam 48 completely, engine can not produce any decompression.Separately, when the pretension of centrifugal force suffered by centrifugal-block 42 lower than prestressing component 44, push rod 49 protrudes from outside valve actuation cam 48, and exhaust rocker arm 34 is swung, and then impels drain tap 37 to open one second micro-stroke, produces decompression.
One-way fashion decompressor 30 is configured at the outlet valve stroke of cylinder head 20 by the present embodiment, another outlet valve stroke centrifugal decompressor 40 being also configured at cylinder head 20, and the Valve travel of one-way fashion decompressor 30 is greater than the Valve travel of centrifugal decompressor 40, can guarantee that one-way fashion decompressor 30 can play the complete effect of easing stress of the first compression stroke completely.
Refer to Fig. 8 A and 8B system and do not install starting motor energy dissipation figure when the centrifugal engine start with one-way fashion decompressor is installed in the engine of decompressor and the utility model first preferred embodiment simultaneously, its transverse axis represents that starting motor drives the time of crankshaft rotating, the longitudinal axis represents that starting motor drives the consume energy of crankshaft rotating, represent that the engine of not installing decompressor and line F represent by the line E in figure and install engine that is centrifugal and one-way fashion decompressor simultaneously, known the present embodiment really can play the complete effect of easing stress of first time compression stroke (i.e. E1) completely, starting motor drives the consume energy of crankshaft rotating to reduce many (being provided by one-way fashion decompressor), and second time, for the third time ... later compression stroke also has pressure-reducing function (being provided by centrifugal decompressor), starting motor drives the consume energy of crankshaft rotating also all to have minimizing, the i.e. E2 of line E, E3, E4, E5 etc. are reduced to the F2 of line F, F3, F4, F5 etc.
In the present embodiment, starting drive 13 can be a startup and to hold concurrently electricity generating device (Integrated Starter and Generator, be called for short ISG), starting drive 13 is mounted on the one end of the pto＝power take-off 11 linked with bent axle 10, and being positioned at a side of bent axle 10, the other end of pto＝power take-off 10 then group establishes a drive transmission device 15.
The ISG start principle system of the present embodiment is when ISG is in startup moment, and when it rotates forward and starts rotating speed lower than a desired speed, control unit can export a signal, impels the ISG angular range that first reverses to rotate forward again.And when ISG reverses, one-way fashion decompressor 30 acts on the exhaust rocker arm 34 of cylinder head 20, drain tap 37 is made to open the first micro-stroke.In the present embodiment, above-mentioned control unit can be independently component, also can be integrated in the EOC (Electronic Control Unit:ECU) of car load.
Therefore, the one-way fashion decompressor 30 of the present embodiment provides starting drive 13 to rotate with dynamic crankshaft 10 first time compression stroke complete decompression, the relief cam 32 of one-way fashion decompressor 30 rotates and lose pressure-reducing function to position location subsequently, the decompression of the compression stroke that second time is later changes to be provided by the centrifugal device 40 that subtracts, until engine start runs well to a specific rotation speeds, centrifugal decompressor 40 just loses decompression.That is, the decompression of first time compression stroke done by one-way fashion decompressor 30, and the decompression that compression stroke is later for the second time is only provided by centrifugal decompressor 40, therefore the starting torque demand that provides required for starting drive 13 can be made lower, thus can reduce starting drive 13 and rotate the energy consumed with dynamic crankshaft 10.
Referring again to Fig. 9 and Figure 10, it is respectively decompressor stereogram and the exploded view of the utility model second preferred embodiment, and sees also Fig. 5.The difference of the present embodiment and the first embodiment is only that the one-way fashion decompressor 30 of the first embodiment and centrifugal decompressor 40 are all configured at the outlet valve stroke of cylinder head 20, one-way fashion decompressor 60 is then configured at the suction valve stroke of cylinder head 50 by the present embodiment, separately centrifugal decompressor 70 is configured at the outlet valve stroke of cylinder head 50.
As shown in the figure, the one-way fashion decompressor 60 of the present embodiment mainly includes camshaft 61, overrunning clutch 69, relief cam 62, yoke frame 65 and an elastic component 66.Overrunning clutch 69 is sheathed on the camshaft 61 of cylinder head 50, and relief cam 62 is fixedly arranged on the outer shroud side face of overrunning clutch 69, and elastic component 66 supports the intake rocker 64 of this yoke frame 65 and cylinder head 50 respectively, and intake rocker 64 is arranged with a pitman arm shaft 63.When camshaft 61 rotates forward, overrunning clutch 69 can not be coupled and follow camshaft 61 and rotate, and engine can not produce any decompression.Another when camshaft 61 reverses, rotation followed by overrunning clutch 69, impels relief cam 62 to follow rotation, promotes yoke frame 65 and intake rocker 64 is rotated, and then impelling air intake valve 68 to open one first micro-stroke, reaching engine effect of easing stress.
The centrifugal decompressor 70 of another the present embodiment mainly includes camshaft 61, valve actuation cam 78, sprocket wheel 75, centrifugal-block 72, decompression axle 73, push rod 79, pivot post 71, holding flange 76, bearing 77 and a prestressing component 74.Wherein, valve actuation cam 78 is fixedly arranged on the camshaft 61 of cylinder head 50; Pivot post 71 is mounted on sprocket wheel 75, centrifugal-block 72 is hubbed on pivot post 71, decompression axle 73 is arranged in camshaft 61, push rod 79 slippage is in valve actuation cam 78, prestressing component 74 then supports centrifugal-block 72 and sprocket wheel 75 respectively, holding flange 76 is press-fitted on camshaft 61, and sprocket wheel 75 is attached on holding flange 76, and bearing 77 is sheathed on camshaft 61.Therefore, when engine rotates, during the pretension of centrifugal force suffered by centrifugal-block 72 higher than prestressing component 74, centrifugal-block 72 drives decompression axle 73 to rotate, and impel push rod 79 slippage and be accommodated in valve actuation cam 78 completely, engine can not produce any decompression.Separately, when the pretension of centrifugal force suffered by centrifugal-block 72 lower than prestressing component 74, push rod 79 protrudes from outside valve actuation cam 78, and exhaust rocker arm 88 is swung, and then impels drain tap to open one second micro-stroke, produces decompression.
Therefore, one-way fashion decompressor 60 and the centrifugal decompressor 70 of the present embodiment do the decompression of first time compression stroke simultaneously, and the decompression that compression stroke is later for the second time is only provided by centrifugal decompressor 70, therefore the starting torque demand that provides required for starting drive 13 also can be made lower, thus can reduce starting drive 13 and rotate the energy consumed with dynamic crankshaft 10.
Although depict the utility model by embodiment, but those of ordinary skill in the art know, when not departing from spirit of the present utility model and essence, the utility model just can be made to have many distortion and change, and scope of the present utility model is limited to the appended claims.
Claims (10)
1. an engine for tool decompressor, is characterized in that, comprising:
One cylinder head, has an air intake valve, a drain tap, an intake rocker and an exhaust rocker arm;
One bent axle;
One starting drive, links this bent axle;
One control unit, in order to control this starting drive; And
Two decompressors, comprise an one-way fashion decompressor and a centrifugal decompressor; Wherein, during the reversion of this bent axle, this one-way fashion decompressor acts on one of them of this intake rocker and this exhaust rocker arm, make one of them unlatching one first micro-stroke of this air intake valve and this drain tap, and this centrifugal decompressor is under a desired speed of this bent axle, act on one of them of this intake rocker and this exhaust rocker arm, one of them making this air intake valve and this drain tap opens one second micro-stroke.
2. the engine of tool decompressor as claimed in claim 1, it is characterized in that, this one-way fashion decompressor acts on this exhaust rocker arm, and impel this drain tap to open, this centrifugal decompressor acts on this exhaust rocker arm, impels this drain tap to open.
3. the engine of tool decompressor as claimed in claim 1, it is characterized in that, this one-way fashion decompressor acts on this intake rocker, and impel this air intake valve to open, this centrifugal decompressor acts on this exhaust rocker arm, impels this drain tap to open.
4. the engine of tool decompressor as claimed in claim 2 or claim 3, it is characterized in that, this second micro-stroke is lower than this first micro-stroke.
5. the engine of tool decompressor as claimed in claim 1, is characterized in that, this starting drive is that a startup is held concurrently electricity generating device, and it is mounted on the one end of the pto＝power take-off that links with this bent axle, and is positioned at a side of this bent axle.
6. the engine of tool decompressor as claimed in claim 5, it is characterized in that, when this startup holds concurrently electricity generating device in startup moment, when it rotates forward and starts rotating speed lower than a desired speed, this control unit exports a signal, controls this startup electricity generating device angular range that first reverses of holding concurrently and rotates forward.
7. the engine of tool decompressor as claimed in claim 6, it is characterized in that, this startup hold concurrently electricity generating device reversion time, this one-way fashion decompressor acts on one of them of this intake rocker and this exhaust rocker arm, and one of them making this air intake valve and this drain tap opens this first micro-stroke.
8. the engine of tool decompressor as claimed in claim 5, it is characterized in that, another side group of this clutch end is provided with a drive transmission device.
9. the engine of tool decompressor as claimed in claim 1, it is characterized in that, this centrifugal decompressor includes a camshaft, a valve actuation cam, a sprocket wheel, a centrifugal-block, decompression axle, a push rod and a prestressing component, this sprocket wheel and this valve actuation cam are fixedly arranged on this camshaft, this centrifugal-block is hubbed at this sprocket wheel, this decompression axle is arranged in this camshaft, and this push rod slippage is in this valve actuation cam, and this prestressing component supports this centrifugal-block and this sprocket wheel respectively.
10. the engine of tool decompressor as claimed in claim 1, it is characterized in that, this one-way fashion decompressor includes a camshaft, an overrunning clutch, a relief cam, a yoke frame and an elastic component, this overrunning clutch is sheathed on this camshaft, this relief cam is fixedly arranged on the outer shroud side face of this overrunning clutch, and this elastic component supports one of them of this yoke frame and this intake rocker and this gas rocking arm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530305.9U CN204098983U (en) | 2014-09-16 | 2014-09-16 | The engine of tool decompressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530305.9U CN204098983U (en) | 2014-09-16 | 2014-09-16 | The engine of tool decompressor |
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| CN204098983U true CN204098983U (en) | 2015-01-14 |
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| CN201420530305.9U Active CN204098983U (en) | 2014-09-16 | 2014-09-16 | The engine of tool decompressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986949A (en) * | 2015-02-13 | 2016-10-05 | 三阳工业股份有限公司 | Method for controlling engine to start through starting and electricity generating device |
| CN106401689A (en) * | 2015-07-27 | 2017-02-15 | 三阳工业股份有限公司 | Engine with two decompression devices |
-
2014
- 2014-09-16 CN CN201420530305.9U patent/CN204098983U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986949A (en) * | 2015-02-13 | 2016-10-05 | 三阳工业股份有限公司 | Method for controlling engine to start through starting and electricity generating device |
| CN106401689A (en) * | 2015-07-27 | 2017-02-15 | 三阳工业股份有限公司 | Engine with two decompression devices |
| CN106401689B (en) * | 2015-07-27 | 2021-06-01 | 三阳工业股份有限公司 | Engine with double pressure reducing devices |
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