CN105370339A - Pressure reducing device of engine - Google Patents
Pressure reducing device of engine Download PDFInfo
- Publication number
- CN105370339A CN105370339A CN201510489540.5A CN201510489540A CN105370339A CN 105370339 A CN105370339 A CN 105370339A CN 201510489540 A CN201510489540 A CN 201510489540A CN 105370339 A CN105370339 A CN 105370339A
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- cam
- aforementioned
- pressure reducing
- controlling rod
- governor weight
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- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A pressure reducing device of engine is disclosed. A pressure reducing groove (29) that extends in the radial direction and an arc groove (30) that extends in the circumferential direction are formed in the recessed part (22) of a cam wheel (8). A cylindrical pressure reducing cam (23) that can be moved between a pressure reducing position and a non-pressure reducing position is accommodated in the pressure reducing groove (29). When the pressure reducing cam (23) is on the pressure reducing position, the pressure reducing cam (23) protrudes to the cam surface (7a) from the opening part (32) of the cam surface (7a). When the pressure reducing cam (23) is on the non-pressure reducing position, the pressure reducing cam (23) draws back from the opening part (32). A centrifugation counterweight control rod (24) that can be swung is arranged in the recessed part (22) of the cam wheel (8), when the spring rotates in a direction that is opposite to the cam wheel (8), the centrifugal force generated by a spring is used to push the centrifugation counterweight control rod (24); an arc groove (30) embedded into the cam wheel (8) is formed in the centrifugation counterweight control rod (24), a pressure reducing emboss (41) is formed by the rotation of the centrifugation counterweight control rod (24), and the pressure reducing emboss (41) can drive the pressure reducing cam (23) to move between the pressure reducing position and the non-pressure reducing position.
Description
Technical field
The invention relates to: be used in pumping, mowing machine (weedwhacker, etc. bushcutter) in small engine, the resistance to compression pression of piston can be alleviated when utilizing hand-pulling type starter to carry out start-up function, the decompressor of the engine carrying out start-up function can be easy to.
Background technique
In the past known this decompressor, be be used for, on cam wheel that the cam of opening and closing Aspirating valves and outlet valve is integrally formed, being provided with tool decompression shaft jaggy and governor weight.When starting, a part for the side face of decompression shaft will be given prominence to from the opening of camming surface, and in the compression section of engine, via cam follower, push rod is up lifted, therefore Aspirating valves will be opened a little, thus can alleviate the resistance to compression pression of piston, and start-up function can be made to become easy.After engine start, governor weight moves utilizing centrifugal force, and decompression shaft rotates, and the breach of decompression shaft will face the opening of camming surface, to make in Compressing Engineering, does not allow Aspirating valves open, and can carry out common running.
The decompressor that patent documentation 1 discloses, as shown in Figure 7, on the timing gear 52 be integrally formed with cam 51, rotating controlling rod 55 is set, this controlling rod 55 is integrally formed with the Rellef cam shaft 54 with breach 53, and be provided with rotating governor weight 57, this governor weight 57 be have can carry out engaging with controlling rod 55 do untie-sell 56.This decompressor, when starting, the side face of a part for Rellef cam shaft 54 will be given prominence to from the opening of camming surface 51a and form small clean and jerk portion, after starting, governor weight 57 moves utilizing centrifugal force, controlling rod 55 will rotate centered by decompression shaft 54, and breach 53 will face opening, will decorporate in small clean and jerk portion.
The decompressor that this patent documentation 1 discloses, the side face of a part for Rellef cam shaft 54 gives prominence to towards camming surface 51a, cam follower can smoothly operate on Rellef cam shaft 54, therefore start-up function is very smooth-going, but, form linkage mechanism together with governor weight 57 with the controlling rod 55 that Rellef cam shaft 54 is integrally formed, so structure is very complicated.
The decompressor that patent documentation 2 discloses, as shown in Figure 8, is on the cam wheel 62 integrally formed with cam 61, arranges swingable governor weight 65, is be formed with the notch part 63 that can face in the opening of camming surface 61a in the axle portion 64 of this governor weight 65.This decompressor, when starting, the end 63a of notch part 63 will face on camming surface 61a, after starting, governor weight 65 moves utilizing centrifugal force, and axle portion 64 rotates, notch part 63 will face opening, and end 63a will decorporate.
The decompressor of this patent documentation 2, although number of parts is less, when cam follower slides on camming surface 61a, cam follower can be cross over suddenly on the end 63a of notch part 63 rapidly, therefore can produce the problem of start-up function irregularity.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 10-159524 publication
Patent documentation 2: Japanese Unexamined Patent Publication 11-81948 publication
Summary of the invention
The present invention be because aforementioned known techniques problem points and developed, be provide: start-up function is very smooth-going, and simply constructed decompressor is as technical task of the present invention.
As by the technological scheme solving aforementioned problems, the invention of subject application is a kind of decompressor, in its compression section when carrying out start-up function, Aspirating valves will be opened a little to alleviate the resistance to compression pression of piston, it possesses: cam wheel, the wherein one side of this cam wheel is formed with the cam for the aforementioned Aspirating valves of opening and closing, is be formed with recess at the another side with aforementioned cam opposition side; Columned relief cam, it is housed in the recess that is formed at aforementioned cam gear and is in the decompressing groove that extends towards the radial direction of aforementioned cam wheel, and can move between the decompression position of wherein one end of aforesaid vacuum groove and the non-decompression position of the wherein the other end, when aforesaid vacuum position, will from being formed in the opening portion in aforementioned cam face toward being projected into aforementioned cam face, when aforementioned non-decompression position, will keep out of the way from aforementioned opening portion; Governor weight controlling rod, it is arranged on the recess of aforementioned cam gear, and can swing centered by fulcrum; Spring, its be by aforementioned governor weight controlling rod towards: the direction of the centrifugal force produced when antagonism aforementioned cam gear rotates is carried out bullet and is pushed away; Arcuation groove is formed at the recess of aforementioned cam gear, this arcuation groove be with the radial direction of aforesaid vacuum groove inside formation right angle, end, and extend toward the circumferential direction of aforementioned cam wheel, decompression projection is formed at aforementioned governor weight controlling rod, this decompression projection is the arcuation groove being embedded in aforementioned cam gear, in response to the rotation of aforementioned governor weight controlling rod, and aforesaid vacuum cam can be moved to decompression position and non-decompression position.
According to aforesaid technological scheme, when starting, because the bullet thrust amount of spring is greater than centrifugal force, so governor weight can't rotate centered by fulcrum, but remain on state of rest, the decompression projection of governor weight controlling rod impels relief cam to move toward decompression position, is projected into camming surface from the opening portion of camming surface.Therefore, in the compression section of engine, relief cam will open Aspirating valves a little to alleviate the resistance to compression pression of piston.During usual operating condition after engine start, because centrifugal force becomes the bullet thrust amount being greater than spring, so governor weight controlling rod will utilize centrifugal force and rotate centered by fulcrum, the decompression projection of governor weight controlling rod, relief cam is impelled to move toward non-decompression position, and retreat from the opening portion of camming surface, keep out of the way from camming surface.Therefore, in compression section, relief cam not start, can carry out common motion unceasingly.
Better structure is, in the recess of aforementioned cam gear, be formed: the arcuation recess be connected with the end outside the radial direction of aforesaid vacuum groove, and on aforementioned governor weight controlling rod, be formed: be embedded in the arcuation recess of aforementioned cam gear, aforesaid vacuum cam can be pressed in response to the rotation of aforementioned governor weight controlling rod the pressing projection remaining on non-decompression position.According to this technological scheme, when common running, the pressing projection of governor weight controlling rod is that relief cam pressing is remained on non-decompression position, therefore, can prevent: relief cam is projected into the facts on camming surface because of the effect of centrifugal force.
Better structure is, aforementioned governor weight controlling rod has: the shape that can cover the aforesaid vacuum cam be housed in aforesaid vacuum groove.According to this technological scheme, even without arranging in addition for covering other component of decompressing groove, also can prevent from being housed in relief cam in decompressing groove from decompressing groove from de-.
According to the present invention, when starting, a part for the side face of columned relief cam, will be projected on camming surface, cam follower will smoothly run on Rellef cam shaft, therefore, is projected into compared with the traditional decompressor on side face with the end of the breach of relief cam, start-up function is smooth more, and can alleviate the pulling force employing stay cord.Therefore, even old man or women also can be easy to engine to be started.In addition, because be utilize governor weight controlling rod to carry out Direct driver relief cam, therefore, relief cam can be made with complete columned metal, structure becomes simpler.
Accompanying drawing explanation
Fig. 1 is the front elevation of the engine applying decompressor of the present invention.
Fig. 2 is the perspective elevation of the valve activator of the engine of Fig. 1.
Fig. 3 is the exploded perspective view of decompressor.
Fig. 4 is the front elevation of gear reducer.
Fig. 5 be decompressor when reducing pressure when (a) and non-decompression action diagram of (b).
Fig. 6 is the graph of a relation of the operation step of display decompressor and engine.
Fig. 7 is the skeleton diagram of traditional decompressor.
Fig. 8 is the skeleton diagram of traditional another kind of decompressor.
(symbol description)
1: engine
7: cam
7a: camming surface
8: cam wheel
17: Aspirating valves
18: outlet valve
21: decompressor
22: recess
23: relief cam
24: governor weight controlling rod
25: spring
28: axle portion
29: decompressing groove
30: arcuation groove
31: arcuation is dashed forward recess
32: opening portion
39: fulcrum
41: decompression projection
42: pressing projection
Embodiment
Below, high-ranking officer illustrates embodiments of the present invention with drawing.
Fig. 1 is the front elevation applying small-sized four-journey engine 1 of the present invention, and Fig. 2 is the perspective elevation of valve activator.Timing gear 5 are the bent axles 4 be fixed in the crankcase 3 of the below being contained in cylinder 2.In the cam box 6 of side being formed at cylinder 2, be accommodate: the cam wheel 8 be integrally formed with cam 7 and pair of cams tappet 9.Cam wheel 8 is supported in camshaft 10, and engage with timing gear 5 and be driven in rotation.Pair of cams tappet 9 is arranged on rotationally on an axle 11, and have: the sliding contacting part 12 doing sliding contact with the camming surface of cam 7 and the tappet 14 that the push rod 13 being located at the side of cylinder 2 up can be pushed up.Cylinder head 15 above cylinder 2, is provided with a pair rocking arm 16, and Aspirating valves 17 and outlet valve 18 down press by wherein one end system of rocking arm 16, and wherein the other end is then up pushed up by push rod 13.
At the camshaft 10 of cam wheel 8, be installed with: by the hand-pulling type starter 19 that wrapped around the pulley of employing stay cord and form, be held by the hand being arranged on the end of employing stay cord and will work the words employed stay cord and pulled 20, bent axle 4 will be rotated via cam wheel 8, timing gear 5, thus, just engine 1 can be started.At cam wheel 8, accommodate decompressor 21 of the present invention.
Fig. 3 is the stereogram of decompressor 21.Decompressor 21 be housed in be located on cam wheel 8 with cam 7 opposition side this one side circular depressions 22, by: relief cam 23, governor weight controlling rod 24 and spring 25 formed.The recess 22 of cam wheel 8 cover by enclosing cover 26.
As shown in Figure 4, be formed at the recess 22 of cam wheel 8: the decompressing groove 29 extended towards radial direction from the side, axle portion 28 with the axis hole 27 chimeric with camshaft 10, the arcuation groove 30 extended towards radial direction and arcuation recess 31.
The width of decompressing groove 29 is the diameters less times greater than relief cam 23, and the degree of depth is then roughly the same with the length dimension of relief cam 23.The end of the radial direction foreign side of decompressing groove 29 is the camming surface 7a extending beyond cam 7, is be formed with opening portion 32 at camming surface 7a.That is decompressing groove 29 is connected with opening portion 32.The position of opening portion 32 is positioned at the upper dead center of cam and the middle of lower dead centre, and be that to be located at be relatively good near this side of upper dead center.The degree of depth of arcuation groove 30 is identical with decompressing groove 29.The intermediate portion of arcuation groove 30 is connected with the end of side in the radial direction of decompressing groove 29.Therefore, arcuation groove 30 forms right angle with decompressing groove 29, and be that formation is T-shaped.The width of wherein one end of arcuation groove 30 be formed larger than the width of the wherein the other end.The degree of depth of arcuation recess 31 is more shallow than the degree of depth of decompressing groove 29.Wherein one end of arcuation recess 31 is connected with the end of the radial direction foreign side of decompressing groove 29.
As shown in Figure 3, be formed at the recess 22 of cam wheel 8: the axis hole 33 that the fulcrum 39 for governor weight controlling rod 24 is fitted together to, location projection 36 for the protuberance 34 of installing spring 25, the locking protrusion 35 engaged for wherein one end of spring 25 and enclosing cover 26.In addition, in the inner circumferential of the recess 22 of cam wheel 8, be formed: three stop holes 37 and claw 38.
Relief cam 23 is metal and is cylindrical shape, and has and can be housed in diameter in the decompressing groove 29 of cam wheel 8 and length.Relief cam 23 can the decompression position of one end of the radial direction foreign side of decompressing groove 29 and in radial direction side the other end non-decompression position between move.The size of relief cam 23 is formed as: when relief cam 23 is at decompression position, is be projected into camming surface 7a from the opening portion 32 of camming surface 7a, when non-decompression position, then keeps out of the way from opening portion 32.
Governor weight controlling rod 24 is that one end is the fulcrum 39 with the axis hole 33 being fitted to cam wheel 8 wherein, and the other end is then be formed with the breach 40 engaged for spring 25 wherein slightly in C font.Governor weight controlling rod 24 is configured to: by the axis hole 33 fulcrum 39 being entrenched in cam wheel 8, and can swing centered by fulcrum 39.In the face relative with the recess 22 of cam wheel 8 of governor weight controlling rod 24, it is be equipped with in parallel with the axle center of fulcrum 39: the pressing projection 42 of the decompression projection 41 being used for embedding the arcuation groove 30 of cam wheel 8 and the arcuation recess 31 regarding to cam wheel 8.Although the height of decompression projection 41 is roughly the same with the degree of depth of arcuation groove 30, the height of pressing projection 42 is then lower than decompression projection 41, and is roughly the same with the degree of depth of arcuation recess 31.
The end face of the foreign side of decompression projection 41 has the function that can produce cam effect for relief cam 23.As shown in Figure 5, governor weight controlling rod 24 is can be: the primary position after rotating towards intermediate portion close to the direction in the axle portion 28 of cam wheel 8 and the direction in axle portion 28 leaving cam wheel 8 towards intermediate portion rotate after activated position between move.And be made into: in the early stage during position, decompression projection 41 is that relief cam 23 is released decompression position, and pressing projection 42 is kept out of the way from relief cam 23.When activated position, decompression projection 41 impels relief cam 23 to keep out of the way non-decompression position, and pressing projection 42 is that relief cam 23 pressing is remained on non-decompression position.
Governor weight controlling rod 24 is formed: during position and activated position carry out movement in the early stage for it, utilizes that its front end is attached is covered with decompressing groove 29.Therefore, even without arranging in addition for covering other component of decompressing groove 29, also can prevent from being housed in relief cam 23 in decompressing groove 29 from decompressing groove 29 from de-.
As shown in Figure 3, spring 25 is torque springs, and is installed in the protuberance 34 of cam wheel 8.Wherein one end of spring 25 is the breach 40 being locked on governor weight controlling rod 24, and wherein the other end is the locking protrusion 35 of the recess 22 being locked on cam wheel 8.By this, spring 25 just can be towards: act on the direction of the centrifugal force of governor weight controlling rod 24 (in Fig. 5 (a) when antagonism cam wheel 8 rotates, direction with represented by f), that is, governor weight controlling rod 24 is carried out bullet towards primary position push away, and relief cam 23 is carried out bullet towards decompression position push away.
As shown in Figure 3, enclosing cover 26 is used to the recess 22 covering cam wheel 8, is be formed: the center hole 43 that the axle portion 28 for cam wheel 8 is fitted together to, the axis hole 44 be fitted together to for the fulcrum 39 of governor weight controlling rod 24, the hole 45 be fitted together to for protuberance 34, the positioning hole 46 that is fitted together to for location projection 36.At the periphery of enclosing cover 26, be formed: in order to three calvus 47 being locked on three stop holes 37 of cam wheel 8, the breach 48 that engages for the claw 38 of cam wheel 8.
Secondly, the effect of the decompressor 21 with aforesaid structure is described.
Under the state that engine 1 stops, in order to utilize hand-pulling type starter 19 to start engine 1, pull employs stay cord makes camshaft 10 carry out rotating, and cam wheel 8 will rotate, through timing gear 5, bent axle 4 is rotated, piston will start.As shown in Figure 6, when piston 2a is performing repeatedly: during four stroke operations of air-breathing, compression, expansion, exhaust, utilize spark coil to make spark plug light a fire, engine 1 just starts.
When starting engine 1, utilize the manually-operable that hand-pulling type starter 19 does, cam wheel 8 will rotate, and therefore, as shown in Fig. 5 (a), acts on the centrifugal force F be accommodated on the governor weight controlling rod 24 of cam wheel 8 very little.Therefore, the bullet thrust f that the spring 25 of governor weight controlling rod 24 acts on is the centrifugal force F being greater than governor weight controlling rod 24, and therefore, governor weight controlling rod 24 will be still in primary position.Relief cam 23 is released decompression position by the decompression projection 41 of governor weight controlling rod 24, and relief cam 23 will be projected into camming surface 7a from the opening portion 32 (please refer to Fig. 3) of camming surface 7a.Its result, will as shown in Figure 6, in the compression section of engine 1, the sliding contacting part 12 of tappet 9 will across on relief cam 23, tappet 9 will rotate, and the tappet 14 of tappet 9 can by push rod 13 up jack-up, and rocking arm 16 will start, Aspirating valves 17 will be opened a little, and the resistance to compression pression of piston 2a will alleviate.
Relief cam 23 is cylindric completely, does not have that breach of conventional apparatus.Therefore, the sliding contacting part 12 of tappet 9 can run to relief cam 23 from camming surface 7a to smooth very much.Do not have and block the thoughts and feelings had some setbacks and be delivered to rising of pull hand-pulling type starter 19 and employ the user of stay cord, even old man or women also can perform the start-up function utilizing hand-pulling type starter 19 in smooth ground.
After engine 1 starts, start to carry out common running, the rotation number of cam wheel 8 can rise, and the centrifugal force F acting on governor weight controlling rod 24 can become large.Therefore, centrifugal force F can become the bullet thrust f being greater than spring 25, and governor weight controlling rod 24 will rotate centered by fulcrum 39 because being subject to centrifugal force F, moves to activated position from primary position.Thus, the strength that relief cam 23 releases decompression position just disappears by the decompression projection 41 of governor weight controlling rod 24, and makes relief cam 23 move to non-decompression position.Its result, relief cam 23 will shrink back from the opening portion 32 (please refer to Fig. 3) of camming surface 7a, and keeps out of the way down from camming surface 7a.Therefore, in compression section, relief cam 23 not start, and continue to carry out common motion.Governor weight controlling rod 24 moves to activated position, and relief cam 23 pressing can be remained on non-decompression position, so can prevent: relief cam 23 is projected into the facts on camming surface 7a because being subject to centrifugal force by pressing projection 42.In addition, by the position of the weight or center of gravity that change governor weight controlling rod 24, or by changing the elasticity coefficient of spring 25, adjust the centrifugal force of governor weight controlling rod 24 and the bullet thrust of spring 25, the releasing period of the mechanism of decompressor namely performed by adjustable relief cam 23.
When engine 1 stops, the centrifugal force acting on governor weight controlling rod 24 will disappear, and the bullet thrust of spring 25 just becomes dominant force, and governor weight controlling rod 24 will be subject to the bullet thrust of spring 25 and move to the primary position shown in Fig. 5 (a).Now, the decompression projection 41 of governor weight controlling rod 24, relief cam 23 can be released decompression position, relief cam 23 is projected into camming surface 7a from the opening portion 32 (please refer to Fig. 3) of camming surface 7a, and return to the state identical with when starting.
Because be by this way, utilize the decompression projection 41 Direct driver relief cam 23 of governor weight controlling rod 24, so need not on relief cam 23, be integrally formed with that controlling rod in conventional apparatus, relief cam 23 can adopt complete columned metal, and therefore structure becomes simpler.
In addition, the present invention is not confined to aforesaid mode of execution, also can make various changes.In aforesaid mode of execution, although be made into: arrange pressing projection 42 on governor weight controlling rod 24, so that relief cam 23 pressing is remained on non-decompression position, also this pressing projection 42 not necessarily to be set.This is because when carrying out common running, even if assuming that relief cam 23 is projected on camming surface 7a, also because of the sliding contacting part 12 of tappet 9 by press against relief cam 23, it be made to keep out of the way non-decompression position, relief cam 23 thus cannot be allowed to play the cause of pressure-reducing function.But, based on can positively impel relief cam 23 to keep out of the way the consideration of non-decompression position, be still provided with pressing projection 42 relatively good.
Claims (3)
1. a decompressor for engine, in its compression section when carrying out start-up function, will open Aspirating valves a little to alleviate the resistance to compression pression of piston, it is characterized in that,
This decompressor possesses:
Cam wheel, the wherein one side of this cam wheel is formed with the cam for the aforementioned Aspirating valves of opening and closing, is be formed with recess at the another side with aforementioned cam opposition side;
Columned relief cam, it is housed in the recess that is formed at aforementioned cam gear and is in the decompressing groove that extends towards the radial direction of aforementioned cam wheel, and can move between the decompression position of wherein one end of aforesaid vacuum groove and the non-decompression position of the wherein the other end, when aforesaid vacuum position, will be projected into from the opening portion being formed in aforementioned cam face aforementioned cam face, when aforementioned non-decompression position, will keep out of the way from aforementioned opening portion;
Governor weight controlling rod, it is arranged on the recess of aforementioned cam gear, and can swing centered by fulcrum;
Spring, its be by aforementioned governor weight controlling rod towards: the direction of the centrifugal force produced when antagonism aforementioned cam gear rotates is carried out bullet and is pushed away;
Be formed with arcuation groove at the recess of aforementioned cam gear, this arcuation groove be with the radial direction of aforesaid vacuum groove inside formation right angle, end, and to extend toward the circumferential direction of aforementioned cam wheel,
Be formed with decompression projection at aforementioned governor weight controlling rod, this decompression projection is the arcuation groove being embedded in aforementioned cam gear, in response to the rotation of aforementioned governor weight controlling rod, and aforesaid vacuum cam can be moved to decompression position and non-decompression position.
2. the decompressor of engine as claimed in claim 1, is characterized in that,
Be formed at the recess of aforementioned cam gear: the arcuation recess be connected with the end outside the radial direction of aforesaid vacuum groove,
Be formed at aforementioned governor weight controlling rod: the arcuation recess being embedded in aforementioned cam gear, and in response to the rotation of aforementioned governor weight controlling rod, and the pressing of aforesaid vacuum cam is remained on the pressing projection of non-decompression position.
3. the decompressor of engine as claimed in claim 1 or 2, is characterized in that,
Aforementioned governor weight controlling rod has the shape that can cover the aforesaid vacuum cam be housed in aforesaid vacuum groove.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-164666 | 2014-08-13 | ||
| JP2014164666A JP6386290B2 (en) | 2014-08-13 | 2014-08-13 | Engine decompression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105370339A true CN105370339A (en) | 2016-03-02 |
| CN105370339B CN105370339B (en) | 2019-04-12 |
Family
ID=55372891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510489540.5A Active CN105370339B (en) | 2014-08-13 | 2015-08-11 | The decompressor of engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6386290B2 (en) |
| CN (1) | CN105370339B (en) |
| TW (1) | TWI656278B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112384683A (en) * | 2018-07-05 | 2021-02-19 | 本田技研工业株式会社 | Decompression device of engine and engine |
| CN113153480A (en) * | 2021-06-08 | 2021-07-23 | 含山县大颉机械有限公司 | Engine camshaft pressure reducing mechanism |
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- 2015-08-11 CN CN201510489540.5A patent/CN105370339B/en active Active
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| DE2824162B2 (en) * | 1977-06-23 | 1981-07-02 | List, Hans, Prof. Dipl.-Ing. Dr.Dr.h.c., Graz | Decompression device for valve-controlled internal combustion engines |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112384683A (en) * | 2018-07-05 | 2021-02-19 | 本田技研工业株式会社 | Decompression device of engine and engine |
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| CN112384683B (en) * | 2018-07-05 | 2022-08-02 | 本田技研工业株式会社 | Decompression device of engine and engine |
| CN113153480A (en) * | 2021-06-08 | 2021-07-23 | 含山县大颉机械有限公司 | Engine camshaft pressure reducing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI656278B (en) | 2019-04-11 |
| CN105370339B (en) | 2019-04-12 |
| JP2016040459A (en) | 2016-03-24 |
| TW201606180A (en) | 2016-02-16 |
| JP6386290B2 (en) | 2018-09-05 |
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