CN105443263A - Cylinder head structure of vertical water-cooled engine - Google Patents

Cylinder head structure of vertical water-cooled engine Download PDF

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Publication number
CN105443263A
CN105443263A CN201410425908.7A CN201410425908A CN105443263A CN 105443263 A CN105443263 A CN 105443263A CN 201410425908 A CN201410425908 A CN 201410425908A CN 105443263 A CN105443263 A CN 105443263A
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China
Prior art keywords
cylinder head
cylinder
cooling liquid
rib post
peak
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CN201410425908.7A
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Chinese (zh)
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CN105443263B (en
Inventor
陈国铭
杨思待
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Kwang Yang Motor Co Ltd
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Kwang Yang Motor Co Ltd
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Priority to CN201410425908.7A priority Critical patent/CN105443263B/en
Publication of CN105443263A publication Critical patent/CN105443263A/en
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Publication of CN105443263B publication Critical patent/CN105443263B/en
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Abstract

The invention relates to a cylinder head structure of a vertical water-cooled engine. The engine comprises a cylinder head, a cylinder body and a crank case. The lower end of the cylinder body is arranged on the crank case, and the cylinder head is arranged at the upper end of the cylinder body. A cylinder head cooling liquid sleeve used for cooling a combustion chamber and a waste gas channel is arranged on the cylinder head, and the cylinder head is provided with a gas inlet channel, an exhaust channel, an engine valve transmission chamber and an igniter. The cylinder hole axis of the cylinder body slightly inclines relative to the ground perpendicular line, and a gas inlet of the gas inlet channel of the cylinder head is higher than an exhaust outlet of the exhaust channel. The igniter is mounted in an oblique inserting mode relative to the cylinder hole axis of the cylinder body, and when being laterally looked from the engine valve transmission chamber, the part, located within the cylinder body cylinder diameter phantom line range where a cylinder hole of the cylinder body extends to the cylinder head, of the cylinder head cooling liquid sleeve is in a lying E shape; cooling liquid is discharged from a discharge outlet of a cooling liquid discharging channel at the gas inlet channel side, a concave opening part is formed between the cooling liquid discharging channel and the peak of the cylinder head cooling liquid sleeve, a gas guiding channel is arranged above the concave opening part and vertically spaced from the concave opening part, and the gas guiding channel is provided with a guiding-in end communicated with the peak and a guiding-out end communicated with the liquid discharging channel; the guiding-out end is higher than the guiding-in end.

Description

The Structure of cylinder head of vertical water-cooled engine
Technical field
The present invention is the Structure of cylinder head about a kind of vertical water-cooled engine, espespecially a kind ofly avoids the vaporization body of cooling liquid to deposit in this cylinder head cooling liquid cover causing gas lock and then can promote the Structure of cylinder head of vertical water-cooled engine of use effect of this engine.
Background technique
In order to solve vehicle liquid cooling vertical escapement engine cooling liquid vaporization after this vaporization alluvial problem, propose Korea S 10-0395016 Patent Case.
As shown in Figure 1, 2, this Korea S 10-0395016 Patent Case, be projection one bump 12 on the cylinder head 11 of engine 1, be provided with putting chamber 121 in this bump 12, this putting chamber 121 is communicated with cooling passage 13; By this when the cooling liquid circulating in this cooling passage 13 has vaporization, this putting chamber 121 can be accommodating for this vaporization body, relends and help the cooling liquid of flowing to be taken away by this vaporization body.
This Korea S 10-0395016 Patent Case, by means of projection one bump 12 on the cylinder head 11 of engine 1, is provided with putting chamber 121 in this bump 12, solves the defect of this cooling liquid vaporization body alluvial by this.But this bump 12 is convexly equipped in outside this cylinder head 11, the volume of this cylinder head 11 therefore can be caused to increase, and then cause the interference of this cylinder head 11 and other component, and cause other component to configure the increase of project engineering degree of difficulty.
Therefore, how to avoid arranging guide in cylinder head and go out cooling liquid vaporization body mechanism, this guide goes out cooling liquid vaporization body mechanism and causes cylinder head and other component to produce the problem configuring and disturb, the problem urgently overcome for vehicle dealer.
Summary of the invention
Main purpose of the present invention is the Structure of cylinder head providing a kind of vertical water-cooled engine, can overcome conventional engine cylinder head by this and arrange bump to drain the cooling liquid vaporization body defect that the volume of this cylinder head therefore can be caused to increase.
The present invention is for reaching above-mentioned purpose, the technical way adopted is: the Structure of cylinder head providing a kind of vertical water-cooled engine, this engine comprises cylinder head, cylinder body, crankcase, and the lower end of this cylinder body is mounted on crankcase, and this cylinder head is the upper end being mounted on cylinder body, wherein this cylinder head arranges the cylinder head cooling liquid cover having at least and can lower the temperature to firing chamber, exhaust steam passage, this cylinder head is provided with the side of air outlet flue, between inlet and outlet road that an intake duct, arranges intake duct opposition side and is provided with the machine valve Transmission Room that can drive rocking arm, and one is arranged at igniter at machine valve Transmission Room opposition side, wherein, aforementioned cylinder body is arrange in the mode slightly tilted with the cylinder holes axis line perpendicular to the ground of this cylinder body, makes the suction port of the intake duct of cylinder head roughly higher than the relief opening of air outlet flue, this igniter is that mode is installed to be obliquely inserting type with the cylinder holes axis of cylinder body, and by the side-looking of machine valve Transmission Room it, cylinder head cooling liquid cover within the scope of the cylinder diameter imaginary line of the cylinder body extended towards cylinder head direction in the cylinder holes of cylinder body is in chevron, wherein, the cooling liquid of this cylinder head cooling liquid cover is discharged by the exhaust port of the cooling liquid outlet duct of the side being located at intake duct, the recessed open-minded portion dodging air inlet component is formed between this cooling liquid outlet duct and the peak portion should overlapped in chevron cylinder head cooling liquid, one to be positioned at above this recessed open-minded portion and to be upper and lower spaced air entraining passage with recessed open-minded portion, this air entraining passage has a leading-in end be communicated with this peak portion, and the Outlet that is communicated with this discharge opeing road.
Effect that the present invention can reach by above-mentioned technological means is: the cylinder head cooling liquid cover by this cylinder head being chevron shape, and this cylinder head cooling liquid cover has a peak portion, a recessed open-minded portion, an air entraining passage and a cooling liquid outlet duct; This air entraining passage is provided at above this recessed open-minded portion, and this air entraining passage has a leading-in end and an Outlet, and the leading-in end of this air entraining passage is connected to this peak portion, and the Outlet of this air entraining passage is then be connected to this cooling liquid outlet duct; The leading-in end of this air entraining passage is roughly a little less than this platform, that is the Outlet of this air entraining passage is higher than this leading-in end, can enter in this cooling liquid outlet duct by this peak portion by convenient vaporization body by this, the vaporization body of this cooling liquid can be avoided by this to deposit in this cylinder head cooling liquid cover and to cause gas lock, and then use effect of this engine can be promoted.
The present invention is for reaching above-mentioned purpose, another technical way adopted is: this cylinder head cooling liquid cover is also provided with a first rib post, look by overlooking sight, this first rib post extends towards this cylinder head center, and roughly separate as entering liquid zone and going out liquid zone in the cylinder head cooling liquid cover of this chevron, and one is positioned at peak portion and more levels off to the link district of cylinder holes axis of cylinder body compared with first rib post, the link district this cylinder head cooling liquid can overlapped in addition and the inner orifice of this igniter become to project the setting of overlapping shape.
Effect that the present invention can reach by another technical way above-mentioned is: cooling liquid can be avoided by this directly to be flowed out by this cooling liquid outlet duct and reduce cooling effect, again due to the setting in this link district, make cooling liquid can take away the heat of this cylinder heads more, and the gas collection that more this cylinder head cooling liquid can be overlapped is to this link district in this peak portion, then discharges this cylinder head cooling liquid cover by this air entraining passage; Link district by overlapping the arranging of projection in addition can more go deep into, therefore can take away the high temperature that this cylinder head igniter place distributes, and then this cylinder head can be made to reach preferably radiating effect.
The present invention is for reaching above-mentioned purpose, the another technical way adopted is: this cylinder head cooling liquid cover is also provided with a second rib post, this second rib post is this link district being positioned at this cylinder head cooling liquid cover, and extends with the side of this first rib post separately and towards this intake duct.
Effect that the present invention can reach by above-mentioned another technical way is: can enter cooling liquid that liquid zone enters and formed to by this and dredge effect in this link district by this, and the cooling liquid of unclogging and readjusting in this link district and gas, and then avoid cooling liquid and gas to produce viscous flow in this link district, therefore can guarantee that cooling liquid and gas can flow out this link district swimmingly.
The present invention is for reaching above-mentioned purpose, time technical way adopted is: this cylinder head cooling liquid cover is also provided with the one first fluid rib post convexedly stretching in out liquid zone, this the first fluid rib post towards intake duct and direction, machine valve Transmission Room boundary extended, this goes out in liquid zone to be also provided with one and the one second fluid rib post that arranges of the almost parallel shape of the first fluid rib post in addition.
Effect that the present invention can reach by an above-mentioned secondary technical way is: by the water conservancy diversion effect of this first fluid rib post, can avoid flowing into this cooling liquid going out liquid zone by this link district and produce viscous flow phenomenon by this; This second fluid rib post can assist this first fluid rib post to become the effect of current stabilization and water conservancy diversion in addition, therefore further can guarantee the mobility of this cooling liquid.
Accompanying drawing explanation
Fig. 1,2 is Korea S 10-0395016 Patent Cases.
Fig. 3 is the schematic diagram of the cylinder of the vertical water-cooled engine of the present invention.
Fig. 4 is the phantom of cylinder head of the present invention and cylinder body.
Fig. 5 is cylinder head sectional view of the present invention.
Fig. 6 is the plan view in cylinder head cooling liquid of the present invention cover and inlet and outlet road.
Fig. 7 is cylinder head cooling liquid of the present invention cover stereogram.
Fig. 8 is the A-A sectional view of Fig. 7.
Embodiment
For the effect making those skilled in the art be easier to understand structure of the present invention and can reach, accompanying drawing is now coordinated to be described as follows;
First, refer to shown in Fig. 3,4, the Structure of cylinder head of vertical water-cooled engine of the present invention, this engine 2 is a water-cooled vertical cylinder engine, and this engine 2 at least includes cylinder head 21, cylinder body 22 and a crankcase 23; The lower end of this cylinder body 22 is mounted on this crankcase 23, and this cylinder head 21 is the upper ends being mounted on this cylinder body 22.
As shown in Fig. 3,5,6, the both sides of this cylinder head 21 are respectively equipped with intake duct 211 and air outlet flue 212, this intake duct 211 connects a supply engine 2 outwardly and fires the air-strainer 24 using cleaned air, and this air outlet flue 212 connects the outlet pipe 27 that a discharge engine 2 fires rear waste gas outwardly; This intake duct 211 is provided with air inlet component 2111, and this air inlet component 2111 has suction valve gate seat 2111a and air inlet duct 2111b, and this air outlet flue 212 is provided with exhaust component 2121, and this exhaust component 2121 has outlet valve gate seat 2121a and exhaust manifolds 2121b; This cylinder head 21 is provided with firing chamber 213 towards cylinder body 22 direction, and the suction valve gate seat 2111a of this air inlet component 2111 and outlet valve gate seat 2121a of exhaust component 2121 for wearing inlet and outlet valve rod, can stretch into this firing chamber 213 to guide inlet and outlet valve.
As shown in Fig. 3,5,6, this cylinder head 21 is provided with a cooling liquid exhaust port 214 in intake duct 211 side; The side of this cylinder head 21 between intake duct 211 and air outlet flue 212 is provided with the machine valve Transmission Room 216 can opening inlet and outlet valve, this machine valve Transmission Room 216 is with chain transmission or push rod transmission or bel-drivenn mode, by the transmission of power of bent axle (not drawing in accompanying drawing) to valve in order to drive the use opening inlet and outlet valve; In accompanying drawing of the present invention, this machine valve Transmission Room 216 implements with chain 215 transmission; This cylinder head 21 is inserted with igniter 26 in the opposition side of this machine valve Transmission Room 216.
As shown in Fig. 4,6, this igniter 26 is to become angled manner to be obliquely inserted on this cylinder head 21 with the cylinder holes axis C of cylinder body, that is this is that the inner orifice 262 of this igniter seat 261 is communicated with this firing chamber 213 for one oblique plugs hole for the igniter seat 261 that igniter 26 plugs; Wherein, the intake duct 211 of this cylinder head 21 and air outlet flue 212 are all be partial to this igniter 26 direction partially to establish, more particularly, the intake duct 211 of this cylinder head 21 and air outlet flue 212 are towards this machine valve Transmission Room 216 opposition side, the angle that this intake duct 211 and this air outlet flue 212 are formed in machine valve Transmission Room 216 side of this cylinder head 21 is greater than 180 degree, by this can this cylinder head 21 convenient in arranging, intake duct 211 side is other arrange cooling liquid exhaust port 214, this cylinder head 21 can be made to configure can the maintenance engineering of more compactification and this cooling liquid exhaust port 214 convenient simultaneously.
As shown in Figure 3, this cylinder body 22 is provided with cooling liquid entry port 221, this cooling liquid entry port 221 by straight with pump element 28, indirectly link cooling liquid water pipe 250 and cooling liquid water inlet pipe 251 is connected to cooling water radiator 25, this cooling water radiator 25 links by the cooling liquid water outlet 214 of a cooling liquid outlet pipe 252 with this cylinder head 21.
As shown in FIG. 4,5,6, 7, see depending on (referring to shown in Fig. 7) by the side-looking of machine valve Transmission Room 216, within the scope of the cylinder diameter imaginary line D of the cylinder body that the cylinder holes of this cylinder body 22 extends towards this cylinder head 21 direction, the cylinder head cooling liquid cover 217 of this cylinder head 21 in chevron shape, this cylinder head cooling liquid cover 217 can carry out heat radiation action to the firing chamber 213 of cylinder head 21 and air outlet flue 212, is the cylinder body cooling liquid cover 222 be connected in this cylinder body 22 below this cylinder head cooling liquid cover 217.
As shown in Fig. 6,7,8, this cylinder head cooling liquid cover 217 has peak portion 2171, recessed open-minded portion 2172, air entraining passage 2173 and a cooling liquid outlet duct 2174, wherein, this cylinder head 21 has a junction plane M combined with cylinder body 22, the peak portion 2171 of this cylinder head cooling liquid cover 217, having one with the imaginary line E parallel with combinating face M of the cylinder holes axis C orthogonal of cylinder body is the platform 21711 roughly tilted, make platform 21711 part of cylinder holes axis C towards the peak portion 2171 of intake duct 211 side of this cylinder body, towards platform 21711 part in the peak portion 2171 of air outlet flue 217 side compared with the cylinder holes axis C of cylinder body, closer to the combinating face M of the cylinder holes axis C orthogonal with cylinder body, and the upper limb making this cylinder head cooling liquid overlap the leading-in end 21731 of the air entraining passage 2173 of peak portion 2171 connection of 217 is roughly a little less than this platform 21711.
As shown in Fig. 5,6,7, the wall thickness 21a of this cylinder head 21 is remain above this recessed open-minded portion 2172, dodge this air inlet component 2111 by this, especially the flange 2111c of the air inlet duct 2111b of this air inlet component is arranged, more particularly, make intake duct 211 side of cylinder head 21 that certain wall thickness 21a can be kept to arrange to supply this air inlet component 2111 by this recessed open-minded portion 2172.
As shown in Fig. 6,7,8, this air entraining passage 2173 is provided at above this recessed open-minded portion 2172, this air entraining passage 2173 has leading-in end 21731 and an Outlet 21732, the leading-in end 21731 of this air entraining passage 2173 is connected to this peak portion 2171, and the Outlet 21732 of this air entraining passage 2173 is connected to this cooling liquid outlet duct 2174; The leading-in end 21731 of this air entraining passage 2173 is roughly a little less than this platform 21711, and that is the Outlet 21732 of this air entraining passage 2173 is higher than this leading-in end 21731, can be entered in this cooling liquid outlet duct 2174 by this peak portion 2171 by convenient vaporization body by this.
As shown in Fig. 6,7,8, this cooling liquid outlet duct 2174 is discharged for cooling liquid, this cooling liquid outlet duct 2174 outer end is connected to the cooling liquid exhaust port 214 of this cylinder head 21, this cooling liquid outlet duct 2174 is in the top of contiguous cooling liquid exhaust port 214, offer and upwards swell and be communicated with the boss 21741 of air entraining passage 2173 Outlet 21732, the setting by this boss 21741 can the installation of the component such as convenient temperature monitor (not drawing in accompanying drawing).
As shown in Fig. 6,7,8, this cylinder head cooling liquid cover 217 is also provided with a first rib post 2175, look by overlooking sight, this first rib post 2175 extends towards this cylinder head 21 center, and roughly separate as entering liquid zone F and go out liquid zone G in the cylinder head cooling liquid cover 217 of this chevron, and one is positioned at peak portion 2171 and more levels off to the link district H of cylinder holes axis C of cylinder body compared with first rib post 2175; That is this first rib post 2175 is the rib posts intercepted completely linking lower wall on this cylinder head cooling liquid cover 217, the peak portion 2171 of this cylinder head cooling liquid cover 217 can be partitioned into into liquid zone F and go out liquid zone G by this, this first rib post 2175 arranges one and links district H, this link district H and can be connected to this to enter liquid zone F and this goes out liquid zone G towards cylinder head 21 center; Cooling water can lead cylinder head 21 center by this first rib post 2175 by this, because the inner orifice 262 of this igniter 26 is by overlooking sight apparent time, is that the link district H overlapping 217 with this cylinder head cooling liquid becomes to project overlapping shape (as shown in Figure 6); Cooling liquid can be avoided by this directly to be flowed out by cooling liquid outlet duct 2174 and reduce cooling effect, again due to the setting of this link district H, cooling liquid can be made can to take away the heat of this cylinder heads 21 more, and more by this link district H of the gas collection of this cylinder head cooling liquid cover 217 to this peak portion 2171, then this cylinder head cooling liquid cover 217 can be discharged by this air entraining passage 2173; In addition by overlapping the arranging involvement interface H and can more go deep into of projection, therefore can take away the high temperature at this cylinder head 21 igniter 216 place, and then this cylinder head 21 can be made to reach preferably radiating effect.
As Fig. 6, 7, shown in 8, this cylinder head cooling liquid cover 217 is also provided with a second rib post 2176, this second rib post 2176 is the link district H being positioned at this cylinder head cooling liquid cover 217, and extend with the side of this first rib post 2175 separately and towards intake duct 211, that is this second rib post 2176 is the rib posts intercepted completely linking lower wall on this cylinder head cooling liquid cover 217, this second rib post 2176 is positioned at this link district H, this second rib post 2176 is that nearly vertical mode is arranged separately with this first rib post 2175, and extend towards the side of the intake duct 211 of cylinder head 21, be provided in the link district H of this cylinder head cooling liquid cover 217 by this second rib post 2176, can cooling liquid that liquid zone F enters be entered be formed to by this and dredge effect in this link district H by this, and the cooling liquid of unclogging and readjusting in this link district H and gas, and then avoid cooling liquid and gas to produce viscous flow in this link district H, therefore can guarantee that cooling liquid and gas can flow out this link district H swimmingly.
As shown in Fig. 6,7,8, this cylinder head cooling liquid cover 217 is also provided with the one first fluid rib post 2177 convexedly stretching in out liquid zone G, this the first fluid rib post 2177 is extended towards intake duct 212 and machine valve Transmission Room 216 direction that has a common boundary, and this goes out in liquid zone G to be also provided with one and the one second fluid rib post 2178 that arranges of the almost parallel shape of the first fluid rib post 2177; This first fluid rib post 2177 and the second fluid rib post 2178 are that to overlap 217 lower walls by this cylinder head cooling liquid extended, and are not linked to the half rib post intercepted that this cylinder head cooling liquid overlaps 217 upper walls; By the water conservancy diversion effect of this first fluid rib post 2177, can avoid flowing into this cooling liquid going out liquid zone G by this link district H and produce viscous flow phenomenon by this; This second fluid rib post 2178 can assist the effect of these the first fluid rib post 2177 one-tenth current stabilizations and water conservancy diversion in addition, therefore further can guarantee the mobility of this cooling liquid.
As shown in Figure 3, enforcement of the present invention, this engine 2 be with the ground vertical line L 1 of the cylinder holes axis C line L parallel to the ground of cylinder body in slightly tilting, and the suction port 211a of this intake duct 211 of this cylinder head 21 is roughly higher than the vertical engine that the relief opening 212a mode of this air outlet flue 212 is arranged; The cylinder body cooling liquid that the cooling liquid that this engine 2 operates heat transmission enters cylinder body 22 by this radiator 25 through cooling liquid water inlet pipe 251 overlaps in 222, then overlaps the 222 cylinder head cooling liquids upwards entering this cylinder head 21 by this cylinder body cooling liquid and overlap in 217 and carry out cooling to firing chamber 213 and air outlet flue 212.
As Fig. 3, 6, 7, shown in 8, after the cooling liquid of this heat transmission enters the cylinder head cooling liquid cover 217 of this cylinder head 21, the high temperature of the inner orifice 262 of the igniter 26 that can be distributed at this cylinder head 21 high temperature place by the first rib post 2175 of this cylinder head cooling liquid cover 217 is taken out of, in this link district H, water conservancy diversion effect is formed again by this second rib post 2176, this link district H can be avoided to produce remain in a standstill, and this first fluid rib post 2177 and the guiding of the second fluid rib post 2178 can be avoided going out liquid zone G produce viscous flow phenomenon in this, and cooling liquid can be made swimmingly to be led to this cooling liquid outlet duct 2174, and be transmitted back to heat extraction in radiator 25 by the cooling liquid exhaust port 214 of this cylinder head 21 through cooling liquid outlet pipe 252, wherein, this cooling liquid is when this cylinder head cooling liquid cover 217 has vaporization, the vaporization body of this cooling liquid easily can be come together in the peak portion 2171 of this cylinder head cooling liquid cover 217, and be provided with an air entraining passage 2173 above the recessed open-minded portion 2172 of this cylinder head cooling liquid cover 217, the leading-in end 21731 of this air entraining passage 2173 is connected to this peak portion 2171, and the Outlet 21732 of this air entraining passage 2173 is connected to this cooling liquid outlet duct 2174, the Outlet 21732 of this air entraining passage 2173 another is higher than this leading-in end 21731, when cooling liquid enters this cooling liquid outlet duct 2174 owing to having certain flow velocity, therefore negative pressure shape can be into relative to this air entraining passage 2173 in this cooling liquid outlet duct 2174, can import in this cooling liquid outlet duct 2174 by this peak portion 2171 by convenient vaporization body by this, can drain in air together with cooling liquid together flow to this radiator 25 through cooling liquid outlet pipe 252, the vaporization body of this cooling liquid can be avoided by this to deposit in this cylinder head cooling liquid cover 217 and to cause gas lock, and then use effect of this engine 2 can be promoted.
Effect of the present invention is, by the cylinder head cooling liquid cover 217 of this cylinder head 21 in chevron shape, this cylinder head cooling liquid cover 217 has peak portion 2171, recessed open-minded portion 2172, air entraining passage 2173 and a cooling liquid outlet duct 2174; This air entraining passage 2173 is provided at above this recessed open-minded portion 2172, this air entraining passage 2173 has leading-in end 21731 and an Outlet 21732, the leading-in end 21731 of this air entraining passage 2173 is connected to this peak portion 2171, and the Outlet 21732 of this air entraining passage 2173 is connected to this cooling liquid outlet duct 2174; The leading-in end 21731 of this air entraining passage 2173 is roughly a little less than this platform 21711, that is the Outlet 21732 of this air entraining passage 2173 is higher than this leading-in end 21731, can enter in this cooling liquid outlet duct 2174 by this peak portion 2171 by convenient vaporization body by this, the vaporization body of this cooling liquid can be avoided by this to deposit in this cylinder head cooling liquid cover 217 and to cause gas lock, and then use effect of this engine 2 can be promoted.
Another effect of the present invention is: be also provided with a first rib post 2175 by this cylinder head cooling liquid cover 217, this first rib post 2175 extends towards this cylinder head 21 center, and roughly separate as entering liquid zone F and going out liquid zone G in the cylinder head cooling liquid cover 217 of this chevron, and one is positioned at peak portion 2171 and more levels off to the link district H of cylinder holes axis C of cylinder body compared with first rib post 2175, the link district H of this cylinder head cooling liquid cover 217 becomes the setting of the overlapping shape of projection simultaneously; Cooling liquid can be avoided by this directly to be flowed out by this cooling liquid outlet duct 2174 and reduce cooling effect, again due to the setting of this link district H, make cooling liquid can take away the heat of this cylinder heads 21 more, and more by this link district H of the gas collection of this cylinder head cooling liquid cover 217 to this peak portion 2171, then this cylinder head cooling liquid cover 217 can be discharged by this air entraining passage 2173; In addition by overlapping the arranging this link district H and can more go deep into of projection, therefore can take away the high temperature that this cylinder head 21 igniter 216 place distributes, and then this cylinder head 21 can be made to reach preferably radiating effect.
Another effect of the present invention is: be also provided with a second rib post 2176 by this cylinder head cooling liquid cover 217, this second rib post 2176 is the link district H being positioned at this cylinder head cooling liquid cover 217, and extends with the side of first rib post 2175 separately and towards this intake duct 211; Can cooling liquid that liquid zone F enters be entered be formed to by this and dredge effect in this link district H by this, and the cooling liquid of unclogging and readjusting in this link district H and gas, and then avoid cooling liquid and gas to produce viscous flow in this link district H, therefore can guarantee that cooling liquid and gas can flow out this link district H swimmingly.
Of the present invention time an effect is: be also provided with by this cylinder head cooling liquid cover 217 the one first fluid rib post 2177 convexedly stretching in out liquid zone G, this the first fluid rib post 2177 is extended towards intake duct 212 and machine valve Transmission Room 216 direction that has a common boundary, and this goes out in liquid zone G to be also provided with one and the one second fluid rib post 2178 that arranges of the almost parallel shape of the first fluid rib post 2177; By the water conservancy diversion effect of this first fluid rib post 2177, can avoid flowing into this cooling liquid going out liquid zone G by this link district H and produce viscous flow phenomenon by this; This second fluid rib post 2178 can assist the effect of these the first fluid rib post 2177 one-tenth current stabilizations and water conservancy diversion in addition, therefore further can guarantee the mobility of this cooling liquid.
The cylinder head of vertical water-cooled engine of the present invention is by above-mentioned structure, the true object that can reach demand, should meet the important document of the novelty of patent of invention, creativeness and industrial applicibility, therefore the application of patent of invention is proposed in accordance with the law, request the mirror in detail of your juror, and grant the authorization checking and approving patent of invention, to feeling moral just.
[symbol description]
1 engine 11 cylinder head 12 bump
121 putting chamber 13 cooling passages
2 engine 21 cylinder head 21a wall thickness
211 intake duct 211a suction ports
2111 air inlet components
2111a suction valve gate seat 2111b air inlet duct
2111c flange
212 air outlet flue 212a relief openings
2121 exhaust components
2121a outlet valve gate seat 2121b exhaust manifolds
213 firing chambers
214 cooling liquid exhaust ports
215 chains
216 machine valve Transmission Rooms
217 cylinder head cooling liquid covers
2171 peak portion 21711 platforms
2172 recessed open-minded portions
2173 air entraining passages
21731 leading-in end 21732 Outlets
2174 cooling liquid outlet ducts
21741 boss
2175 first rib posts
2176 second rib posts
2177 first fluid rib posts
2178 second fluid rib posts
22 cylinder body 221 cooling liquid water intakes
222 cylinder body cooling liquid covers
23 crankcases
24 air-strainer
25 radiator 250 cooling liquid supplying pipes
251 cooling liquid water inlet pipe 252 cooling liquid outlet pipes
26 igniter 261 igniter seats
262 inner orifices
27 outlet pipes
28 pump elements
The cylinder holes axis of C cylinder body
The cylinder diameter imaginary line of D cylinder body
E imaginary line
F enters liquid zone
G goes out liquid zone
H links district
L ground parallel lines
L1 ground vertical line
M combinating face

Claims (10)

1. a Structure of cylinder head for vertical water-cooled engine, this engine comprises cylinder head, cylinder body, crankcase, and the lower end of this cylinder body is mounted on crankcase, and this cylinder head is the upper end being mounted on cylinder body; Wherein this cylinder head arranges the cylinder head cooling liquid cover having at least and can lower the temperature to firing chamber, exhaust steam passage, this cylinder head is provided with the side of air outlet flue, between inlet and outlet road that an intake duct, is arranged at intake duct opposition side and is provided with the machine valve Transmission Room that can drive rocking arm, and one is arranged at igniter at machine valve Transmission Room opposition side; Wherein, aforementioned cylinder body is arrange in the mode slightly tilted with the cylinder holes axis line perpendicular to the ground of this cylinder body, makes the suction port of the intake duct of cylinder head roughly higher than the relief opening of air outlet flue, it is characterized in that:
This igniter is that mode is installed to be obliquely inserting type with the cylinder holes axis of cylinder body, and by the side-looking of machine valve Transmission Room it, cylinder head cooling liquid cover within the scope of the cylinder diameter imaginary line of the cylinder body extended towards cylinder head direction in the cylinder holes of cylinder body is in chevron, wherein, the cooling liquid of this cylinder head cooling liquid cover is discharged by the exhaust port of the cooling liquid outlet duct of the side being located at intake duct, the recessed open-minded portion dodging air inlet component is formed between this cooling liquid outlet duct and the peak portion should overlapped in chevron cylinder head cooling liquid, one to be positioned at above this recessed open-minded portion and to be upper and lower spaced air entraining passage with recessed open-minded portion, this air entraining passage has a leading-in end be communicated with this peak portion, and the Outlet that is communicated with this discharge opeing road.
2. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 1, is characterized in that, this cooling liquid outlet duct offers in the top of this cooling liquid exhaust port contiguous and upwards swells and be communicated with the boss of the Outlet of air entraining passage; This cylinder head has a junction plane combined with cylinder body, and to have one with the imaginary line parallel with combinating face of the cylinder holes axis orthogonal of cylinder body be the platform roughly tilted in the peak portion of this cylinder head cooling liquid cover, make the cylinder holes axis of this cylinder body towards the terrace part in the peak portion of intake duct side, be compared with the cylinder holes axis of cylinder body towards the terrace part in the peak portion of air outlet flue side closer to the combinating face of the cylinder holes axis orthogonal with cylinder body, and the upper limb of the leading-in end of air entraining passage that the peak portion that this cylinder head cooling liquid is overlapped is communicated with is roughly a little less than this platform.
3. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 1, is characterized in that, the inner orifice of this igniter, by overlooking sight apparent time, is that the link district overlapped with this cylinder head cooling liquid becomes to project overlapping shape.
4. the Structure of cylinder head of the vertical water-cooled engine as described in claim 1 or 3, is characterized in that, the leading-in end of this air entraining passage is the Outlet lower than air entraining passage.
5. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 1, is characterized in that, the air inlet component that this recessed open-minded portion dodges is the flange for valve guide bushing.
6. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 1, it is characterized in that, this cylinder head cooling liquid cover is also provided with a first rib post, look by overlooking sight, this first rib post extends towards cylinder holes center, and roughly separate as entering liquid zone and going out liquid zone in the cylinder head cooling liquid cover of this chevron, and one is positioned at peak portion and more levels off to the link district of cylinder holes axis of cylinder body compared with first rib post, and this link district links this to enter liquid zone and this goes out liquid zone.
7. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 6, is characterized in that, this cylinder head cooling liquid cover is also provided with a second rib post, and this second rib post is positioned at this link district, and extends with the side of first rib post separately and towards intake duct.
8. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 6, it is characterized in that, this cylinder head cooling liquid cover is also provided with the one first fluid rib post convexedly stretching in out liquid zone, this the first fluid rib post towards intake duct and direction, machine valve Transmission Room boundary extended, and this goes out in liquid zone to be also provided with one and the one second fluid rib post that arranges of the almost parallel shape of the first fluid rib post.
9. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 6, is characterized in that, this cylinder head cooling liquid cover is also provided with a second rib post, and the upper and lower end of this first rib post and second rib post is the rib post of the upper and lower wall being linked to cylinder head cooling liquid cover; In addition, this cylinder head cooling liquid cover is also provided with and convexedly stretches in this one first fluid rib post going out liquid zone and one second fluid rib post, and this first fluid rib post and the second fluid rib post overlap lower wall surface by cylinder head cooling liquid to protrude out but the rib post that links of the upper wall do not overlapped with cylinder head cooling liquid.
10. the Structure of cylinder head of vertical water-cooled engine as claimed in claim 1, it is characterized in that, all be partial to this igniter direction partially to establish by the intake duct of this cylinder head and the air outlet flue of overlooking sight, namely this intake duct and air outlet flue are established towards the contrary lateral deviation of this machine valve Transmission Room, and the angle that this intake duct and this air outlet flue are formed in this machine valve Transmission Room side of this cylinder head is greater than 180 degree.
CN201410425908.7A 2014-08-27 2014-08-27 The Structure of cylinder head of vertical water cooling engine Active CN105443263B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000145451A (en) * 1998-11-13 2000-05-26 Sanshin Ind Co Ltd Cooling structure of cylinder fuel injection type of two cycle engine
US6499444B1 (en) * 1999-09-09 2002-12-31 Dr. Ing H.C.F. Porsche Ag Cylinder head for a water-cooled internal combustion engine
CN1755074A (en) * 2004-09-29 2006-04-05 本田技研工业株式会社 Apparatus for supplying cool water
CN200955452Y (en) * 2006-09-19 2007-10-03 襄樊康晨成泰动力科技有限公司 Diesel engine cylinder head exhaust duct cooling water jacket
TW200949062A (en) * 2008-05-23 2009-12-01 Kwang Yang Motor Co Cylinder head structure for vehicle water cooled engine
JP2010265839A (en) * 2009-05-15 2010-11-25 Honda Motor Co Ltd Cylinder head water jacket structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000145451A (en) * 1998-11-13 2000-05-26 Sanshin Ind Co Ltd Cooling structure of cylinder fuel injection type of two cycle engine
US6295956B1 (en) * 1998-11-13 2001-10-02 Sanshin Kogyo Kabushiki Kaisha Cylinder head for direct fuel injected engine
US6499444B1 (en) * 1999-09-09 2002-12-31 Dr. Ing H.C.F. Porsche Ag Cylinder head for a water-cooled internal combustion engine
CN1755074A (en) * 2004-09-29 2006-04-05 本田技研工业株式会社 Apparatus for supplying cool water
CN200955452Y (en) * 2006-09-19 2007-10-03 襄樊康晨成泰动力科技有限公司 Diesel engine cylinder head exhaust duct cooling water jacket
TW200949062A (en) * 2008-05-23 2009-12-01 Kwang Yang Motor Co Cylinder head structure for vehicle water cooled engine
JP2010265839A (en) * 2009-05-15 2010-11-25 Honda Motor Co Ltd Cylinder head water jacket structure

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