CN205977437U - Double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels - Google Patents
Double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels Download PDFInfo
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- CN205977437U CN205977437U CN201620995617.6U CN201620995617U CN205977437U CN 205977437 U CN205977437 U CN 205977437U CN 201620995617 U CN201620995617 U CN 201620995617U CN 205977437 U CN205977437 U CN 205977437U
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- cylinder head
- water
- right cylinder
- left cylinder
- water channel
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Abstract
The utility model discloses a double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels, its water jacket body on the left and right cylinder head of locating double -cylinder side by side, this water jacket body with a left side cylinder head, right cylinder head are corresponding, and have the water inlet on the water jacket body, and including relatively independent left and right cylinder head cooling water route in the water jacket body, the cylinder head with left and right cylinder is relative respectively should left and right cylinder head to cool off water route, left and right cylinder head cooling water route has same main delivery port, at the water inlet on the water jacket body that corresponds at the same side of admitting air of left and right cylinder head in large quantity of the water inlet on the water jacket body that the same exhaust side of left and right cylinder head corresponds, it is whirl refrigerated ring flow channel to divide equally the combustion chamber, the spark plug that do not have left and right cylinder on left and right cylinder head cooling water way. Structural design is reasonable in this invention, has strengthened each regional torrent of water jacket, has improved cooling efficiency.
Description
Technical field
This utility model is related to a kind of two juxtaposed cylinders two stroke engine cylinder head jacket structure for water, belongs to engine cool skill
Art field.
Background technology
Two juxtaposed cylinders two stroke engine cylinder head, as the strength member of sealed combustion chamber, is acted on by hot gas and holds
It is desirable to cylinder head each several part temperature is uniformly distributed as far as possible, operating temperature should not surpass the mechanical load that cylinder pressure of being bullied is formed
Cross the critical temperature of cylinder head material, and require to have enough intensity in whole operating temperature range, when cylinder head cools down not
Hot-spot can be caused when fully, easily crack and cause engine damage in heat exhaustion effect therapeutic method to keep the adverse QI flowing downwards cylinder head.Therefore to
Seek cylinder head cooling water channel connection and reasonable arrangement, cooling fully, reduces thermal stress, it is to avoid cylinder head lost efficacy.
In traditional two juxtaposed cylinders two stroke engine cylinder head water jacket, arrange special around the combustor of each cylinder
Cooling water channel, but outlet is arranged in engine side, simultaneously air inlet side and exhaust side setting identical cooling water channel, and this leads
Cause air inlet side roughly the same with exhaust side cooling water flow, because exhaust side temperature is higher than air inlet side, exhaust side cooling effect is relatively
Difference, shared outlet leads to that two Cylinder Head Temperatures are uneven, and thermal fatigue failure easily in cylinder head.
Content of the invention
For above-mentioned weak point of the prior art, the utility model discloses a kind of two juxtaposed cylinders two stroke engine
Cylinder head jacket structure for water, its reasonable in design, it is disposed with independent and associated cooling water channel for each cylinder head, simultaneously
Enhance the turbulent flow in each region of water jacket, improve cooling effectiveness.
To achieve these goals, the technical solution of the utility model：A kind of two juxtaposed cylinders two stroke engine cylinder head
Jacket structure for water, it includes left cylinder head located at two juxtaposed cylinders, the water jacket body on right cylinder head, this left cylinder head, right gas
Cylinder head is integral structure, and this water jacket body is corresponding with described left cylinder head, right cylinder, and on described water jacket body
There is water inlet, described water jacket originally includes relatively independent left cylinder head cooling water channel, right cylinder head cooling water channel in vivo, should
Left cylinder head cooling water channel, right cylinder head cooling water channel are relative with described left cylinder head, right cylinder head respectively；
Described left cylinder head cooling water channel, right cylinder head cooling water channel have same main outlet；
The water inlet quantity being on the water jacket body corresponding to described left cylinder head, the identical exhaust side of right cylinder is more than
It is in the water inlet on the water jacket body corresponding to described left cylinder head, the identical air inlet side of right cylinder；In the cooling of left cylinder head
Respectively having on water route, right cylinder head cooling water channel to described left cylinder head, the combustor of right cylinder head, spark plug is in eddy flow
The circulation water channel of cooling.
Further, described water inlet includes left cylinder head exhaust side water inlet, right cylinder head exhaust side water inlet, left cylinder head
Air inlet side water inlet, wherein, this left cylinder head exhaust side water inlet, right cylinder head exhaust side water inlet are in described water jacket body side
On two ends and relative with the identical exhaust side of described left cylinder head, right cylinder head；Described left cylinder head air inlet side water inlet, described
Main water outlet is on described water jacket body opposite side two ends, and the identical air inlet side phase with described left cylinder head, right cylinder head
Right.
Further, in the middle part of described water jacket body, there are longitudinal breach, this longitudinal breach forms described Integral cylinder head
The waling at middle part, and described left cylinder head cooling water channel, right cylinder head cooling water channel separate by this longitudinal breach；
Described main outlet is corresponding with described right cylinder, has on the water jacket body near described longitudinal breach
Mouth of a river water channel, described left cylinder head cooling water channel is connected with described main outlet by this outlet water channel.
Further, described left cylinder head cooling water channel has the left cylinder fuel injector installation site along described water jacket body
The circulation water channel of eddy flow cooling；Right cylinder fuel injector installation position along described water jacket body is had on described right cylinder head cooling water channel
Put the circulation water channel of eddy flow cooling.
Further, described left cylinder head cooling water channel has the left cylinder spark plug installation site along described water jacket body
The circulation water channel of eddy flow cooling；Right cylinder spark plug installation position along described water channel body is had on described right cylinder head cooling water channel
Put the circulation water channel of eddy flow cooling.
Further, described water jacket body has left cylinder head outlet, right cylinder head outlet, this left cylinder head
Top delivery port, right cylinder head outlet correspondence are communicated with described left cylinder head cooling water channel, right cylinder head cooling water channel, and
The corresponding top of combustion chamber phase with described left cylinder head, right cylinder head of this left cylinder head outlet, right cylinder head outlet
Right and adjacent with described left cylinder fuel injector installation site, right cylinder fuel injector installation site.
Further, described left cylinder head outlet, right cylinder head outlet are vapor and coolant mixing
Outlet.
Further, described water inlet also includes the left cylinder head water inlet being connected with described left cylinder head cooling water channel
Mouth and the right cylinder head water inlet being connected with described right cylinder head cooling water channel, this left cylinder head water inlet and described left cylinder gas
Cylinder head is corresponding and is adjacent to described longitudinal breach position；Described right cylinder head water inlet corresponding with described right cylinder cylinder head and
Away from described longitudinal breach position.
Further, described water jacket body is provided with the left cylinder head water outlet being connected with described left cylinder head cooling water channel
Mouthful, this left cylinder head outlet, described main outlet are corresponding with the cylinder head of described left cylinder, right cylinder.
Further, described left cylinder head exhaust side water inlet, right cylinder head exhaust side water inlet, the water inlet of left cylinder head air inlet side
Mouth, left cylinder head water inlet, right cylinder head water inlet introduce coolant by the water jacket of its corresponding left cylinder body, right cylinder body.
The beneficial effects of the utility model：Reasonable in design, is arranged with independent and associated for each cylinder head
Cooling water channel, efficiently reduce cylinder head air inlet side and the temperature difference of exhaust side, reduce thermal stress, it is to avoid cylinder feverish sensation in the head
Fatigue failure, enhances the turbulent flow in each region of water jacket simultaneously, improves cooling effectiveness；In addition, improve combustor regional area
Coolant flow speed, allows steam overflow, it is to avoid vapour lock simultaneously in time.
Brief description
Fig. 1 is the top view of cylinder head water jacket in this utility model；
Fig. 2 is the upward view of cylinder head water jacket in this utility model.
Specific embodiment
To further describe this utility model with reference to specific embodiment and accompanying drawing.
One kind described two juxtaposed cylinders two stroke engine cylinder head jacket structure for water as shown in Figure 1, Figure 2, it includes located at arranged side by side
Water jacket body on the left cylinder head of twin-tub, right cylinder head, this left cylinder head, right cylinder head are integral structure, this water jacket
Body is corresponding with described left cylinder head, right cylinder, and has water inlet on water jacket body, and water jacket originally includes phase in vivo
To independent left cylinder head cooling water channel, right cylinder head cooling water channel, this left cylinder head cooling water channel, right cylinder head cooling water channel
Relative with the cylinder head of left cylinder, right cylinder respectively；
Left cylinder head cooling water channel, right cylinder head cooling water channel have same main outlet 6；
The water inlet quantity being on the water jacket body corresponding to left cylinder head, the identical exhaust side of right cylinder be more than be in
The water inlet on water jacket body corresponding to the identical air inlet side of left cylinder head, right cylinder；In left cylinder head cooling water channel, right gas
Respectively having on cylinder head cooling water channel to left cylinder head, the combustor of right cylinder head, spark plug is in the circulating water that eddy flow cools down
Road.
This utility model adopts eddy flow to cool down the cylinder head of left cylinder, right cylinder, specifically, left cylinder head cooling water channel
On have along water jacket body left cylinder fuel injector installation site 13 eddy flow cooling circulation water channel；Have on right cylinder head cooling water channel
There is the circulation water channel of the right cylinder fuel injector installation site 14 eddy flow cooling along water jacket body；On left cylinder head cooling water channel, there is edge
The circulation water channel of the left cylinder spark plug installation site 10 eddy flow cooling of water jacket body；Have along water channel on right cylinder head cooling water channel
The circulation water channel of the right cylinder spark plug installation site 11 eddy flow cooling of body.And optimize water inlet position, it is effectively reduced cylinder
Head air inlet side and the temperature difference of exhaust side, reduce thermal stress, it is to avoid cylinder head thermal fatigue failure.
Water inlet includes left cylinder head exhaust side water inlet 1, right cylinder head exhaust side water inlet 2, the water inlet of left cylinder head air inlet side
Mouth 3, wherein, this left cylinder head exhaust side water inlet 1, right cylinder head exhaust side water inlet 2 are on the two ends of water jacket body side, and with
Left cylinder head, right cylinder head identical exhaust side relatively；Left cylinder head air inlet side water inlet 3, that main outlet 6 is in water jacket body is another
On the two ends of side and relative with the identical air inlet side of left cylinder head, right cylinder head.
Left cylinder head exhaust side water inlet 1, right cylinder head exhaust side water inlet 2, left cylinder head air inlet side water inlet 3, main outlet 6
Office is on the quadripolar corners of water jacket body both sides.There are in the middle part of water jacket body longitudinal breach 12, this longitudinal breach forms described one
Waling in the middle part of formula cylinder head, and this longitudinal breach 12 by left cylinder head cooling water channel, right cylinder head cooling water channel every
Open；
Main outlet 6 is corresponding with right cylinder cylinder head, has outlet on the water jacket body near longitudinal breach 12
Water channel, left cylinder head cooling water channel is connected with main outlet 6 by this outlet water channel.
Left cylinder head outlet 8, right cylinder head outlet 9 are had on water jacket body, this left cylinder head outlet
8th, right cylinder head outlet 9 correspondence is communicated with left cylinder head cooling water channel, right cylinder head cooling water channel, and this left cylinder head
Outlet 8, right cylinder head outlet 9 correspondence are relative with the top of combustion chamber of left cylinder, right cylinder, and pacify with left cylinder fuel injector
Holding position 13, right cylinder fuel injector installation site 14 are adjacent.This left cylinder head outlet 8, right cylinder head outlet 9 are water
Steam and coolant mixed export, are used for improve combustor regional area coolant flow speed, allow steam overflow in time simultaneously
Go out, it is to avoid vapour lock.
Water inlet also includes the left cylinder head water inlet 4 being connected with left cylinder head cooling water channel and cold with right cylinder
But the right cylinder head water inlet 5 that water route is connected, this left cylinder head water inlet 4 is corresponding with left cylinder cylinder head and is adjacent to longitudinally scarce
Mouth 12 positions；Right cylinder head water inlet 5 is corresponding with right cylinder cylinder head and away from longitudinal breach 12 position.Left cylinder head exhaust side enters
The mouth of a river 1, right cylinder head exhaust side water inlet 2, left cylinder head air inlet side water inlet 3, left cylinder head water inlet 4, right cylinder head water inlet 5 by
Its corresponding left cylinder body, the water jacket of right cylinder body introduce coolant, strengthen the turbulent flow in each region of water jacket body, improve cooling
Efficiency.
Finally, water jacket body is provided with the left cylinder head outlet 7 being connected with left cylinder head cooling water channel, this left cylinder head
Outlet 7, described main outlet 6 are corresponding with the cylinder head of left cylinder, right cylinder, to ensure left cylinder head cooling water channel, the right side
The normal operation of cylinder head cooling water channel.
The technical scheme above this utility model embodiment being provided is described in detail, used herein specifically
Individual example is set forth to the principle of this utility model embodiment and embodiment, and the explanation of above example is only applicable to help
Assistant solves the principle of this utility model embodiment；Simultaneously for one of ordinary skill in the art, implement according to this utility model
Example, all will change, in sum, this specification content should not be construed as in specific embodiment and range of application
To restriction of the present utility model.
Claims (10)
1. a kind of two juxtaposed cylinders two stroke engine cylinder head jacket structure for water, includes left cylinder head located at two juxtaposed cylinders, the right side
Water jacket body on cylinder head, this left cylinder head, right cylinder head are integral structure, this water jacket body and described left cylinder
Head, right cylinder corresponding, and on described water jacket body, there is water inlet it is characterised in that：This internal inclusion of described water jacket
There are relatively independent left cylinder head cooling water channel, right cylinder head cooling water channel, this left cylinder head cooling water channel, the cooling of right cylinder head
Water route is relative with described left cylinder head, right cylinder head respectively；
Described left cylinder head cooling water channel, right cylinder head cooling water channel have same main outlet (6)；
The water inlet quantity being on the water jacket body corresponding to described left cylinder head, the identical exhaust side of right cylinder be more than be in
The water inlet on water jacket body corresponding to described left cylinder head, the identical air inlet side of right cylinder；Left cylinder head cooling water channel,
Respectively having on right cylinder head cooling water channel to described left cylinder head, the combustor of right cylinder head, spark plug is in that eddy flow cools down
Circulation water channel.
2. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 1 it is characterised in that：Described enter
The mouth of a river includes left cylinder head exhaust side water inlet (1), right cylinder head exhaust side water inlet (2), left cylinder head air inlet side water inlet (3),
Wherein, this left cylinder head exhaust side water inlet (1), right cylinder head exhaust side water inlet (2) are on the two ends of described water jacket body side,
And it is relative with the identical exhaust side of described left cylinder head, right cylinder head；Described left cylinder head air inlet side water inlet (3), described master go out
The mouth of a river (6) is on described water jacket body opposite side two ends, and the identical air inlet side phase with described left cylinder head, right cylinder head
Right.
3. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 2 it is characterised in that：Described water
In the middle part of set body, there are longitudinal breach (12), this longitudinal breach (12) form the longitudinally reinforced of described one-piece cylinder centriciput
Muscle, and described left cylinder head cooling water channel, right cylinder head cooling water channel separate by this longitudinal breach (12)；
Described main outlet (6) is corresponding with described right cylinder, has on the water jacket body near described longitudinal breach (12)
There is outlet water channel, described left cylinder head cooling water channel is connected with described main outlet (6) by this outlet water channel.
4. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 1 it is characterised in that：A described left side
The circulation water channel of left cylinder fuel injector installation site (13) the eddy flow cooling along described water jacket body is had on cylinder head cooling water channel；
The ring of right cylinder fuel injector installation site (14) the eddy flow cooling along described water jacket body is had on described right cylinder head cooling water channel
Flowing flux.
5. the two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 1 or 4 it is characterised in that：Institute
State the circulation that left cylinder spark plug installation site (10) the eddy flow cooling along described water jacket body is had on left cylinder head cooling water channel
Water channel；Right cylinder spark plug installation site (11) eddy flow cooling along described water channel body is had on described right cylinder head cooling water channel
Circulation water channel.
6. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 4 it is characterised in that：Described water
On set body, there is left cylinder head outlet (8), right cylinder head outlet (9), this left cylinder head outlet (8), the right side
Cylinder head top delivery port (9) correspondence is communicated with described left cylinder head cooling water channel, right cylinder head cooling water channel, and this left cylinder crown
Portion's outlet (8), right cylinder head outlet (9) correspondence are relative with the top of combustion chamber of described left cylinder head, right cylinder head, and
Adjacent with described left cylinder fuel injector installation site (13), right cylinder fuel injector installation site (14).
7. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 6 it is characterised in that：A described left side
Cylinder head top delivery port (8), right cylinder head outlet (9) are vapor and coolant mixed export.
8. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 3 it is characterised in that：Described enter
The mouth of a river also includes left cylinder head water inlet (4) being connected with described left cylinder head cooling water channel and cold with described right cylinder
But right cylinder head water inlet (5) that water route is connected, this left cylinder head water inlet (4) is corresponding with described left cylinder and is adjacent to institute
State longitudinal breach (12) position；Described right cylinder head water inlet (5) is corresponding with described right cylinder and away from described longitudinal breach
(12) position.
9. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 3 it is characterised in that：Described water
It is provided with, on set body, left cylinder head outlet (7) being connected with described left cylinder head cooling water channel, this left cylinder head outlet
(7), described main outlet (6) is corresponding with the cylinder head of described left cylinder, right cylinder.
10. two juxtaposed cylinders two stroke engine cylinder head jacket structure for water according to claim 8 it is characterised in that：Described
Left cylinder head exhaust side water inlet (1), right cylinder head exhaust side water inlet (2), left cylinder head air inlet side water inlet (3), the water inlet of left cylinder head
Mouth (4), right cylinder head water inlet (5) introduce coolant by the water jacket of its corresponding left cylinder body, right cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620995617.6U CN205977437U (en) | 2016-08-30 | 2016-08-30 | Double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620995617.6U CN205977437U (en) | 2016-08-30 | 2016-08-30 | Double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels |
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| Publication Number | Publication Date |
|---|---|
| CN205977437U true CN205977437U (en) | 2017-02-22 |
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| CN201620995617.6U Active CN205977437U (en) | 2016-08-30 | 2016-08-30 | Double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224118A (en) * | 2016-08-30 | 2016-12-14 | 重庆高金实业有限公司 | Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water |
| CN114526170A (en) * | 2022-03-09 | 2022-05-24 | 广西玉柴机器股份有限公司 | V-shaped diesel engine cylinder body water jacket structure |
-
2016
- 2016-08-30 CN CN201620995617.6U patent/CN205977437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224118A (en) * | 2016-08-30 | 2016-12-14 | 重庆高金实业有限公司 | Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water |
| CN114526170A (en) * | 2022-03-09 | 2022-05-24 | 广西玉柴机器股份有限公司 | V-shaped diesel engine cylinder body water jacket structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401122 No. 1, Yunhui Road, North District, Chongqing Economic and Technological Development Zone Patentee after: Chongqing GAOJIN Industrial Co.,Ltd. Address before: 401122 No. 1, Yunhui Road, North District, Chongqing Economic and Technological Development Zone Patentee before: CHONGQING GAOKIN INDUSTRY Co.,Ltd. |