CN106224118A - Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water - Google Patents
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water Download PDFInfo
- Publication number
- CN106224118A CN106224118A CN201610788204.5A CN201610788204A CN106224118A CN 106224118 A CN106224118 A CN 106224118A CN 201610788204 A CN201610788204 A CN 201610788204A CN 106224118 A CN106224118 A CN 106224118A
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- China
- Prior art keywords
- cylinder head
- water
- right cylinder
- left cylinder
- water channel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of two juxtaposed cylinders two stroke engine cylinder head jacket structure for water, it includes the water jacket body on the left and right cylinder head being located at two juxtaposed cylinders, this water jacket body and described left cylinder head, right cylinder head are corresponding, and on water jacket body, there is water inlet, water jacket is the most internal includes relatively independent left and right cylinder head cooling water channel, and this left and right cylinder head cooling water channel is relative with the cylinder head of left and right cylinder respectively；Left and right cylinder head cooling water channel has same main outlet；The water inlet quantity being on the water jacket body corresponding to the identical exhaust side of left and right cylinder head is more than being in the water inlet on the water jacket body corresponding to the identical air inlet side of left and right cylinder head；Have the combustor to left and right cylinder on left and right cylinder head cooling water channel respectively, spark plug is the circulation water channel that eddy flow cools down.This inventive structure is reasonable in design, enhances the turbulent flow in each region of water jacket, improves cooling effectiveness.
Description
Technical field
The present invention relates to a kind of two juxtaposed cylinders two stroke engine cylinder head jacket structure for water, belong to engine cool technology neck
Territory.
Background technology
Two juxtaposed cylinders two stroke engine cylinder head is as the strength member of sealed combustion chamber, by hot gas effect and hold
The mechanical load that cylinder pressure of being bullied is formed, it is desirable to cylinder head each several part temperature is uniformly distributed as far as possible, and operating temperature should not surpass
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 time fully, easily crack at heat exhaustion effect therapeutic method to keep the adverse QI flowing downwards cylinder head and cause engine damage.Therefore want
Seeking 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, and air inlet side and exhaust side arrange identical cooling water channel simultaneously, and this leads
Causing air inlet side roughly the same with exhaust side cooling water flow, owing to exhaust side temperature is higher than air inlet side, exhaust side cooling effect is relatively
Difference, shared outlet causes two Cylinder Head Temperatures uneven, and thermal fatigue failure easily occurs in cylinder head.
Summary of the invention
For above-mentioned weak point of the prior art, the invention discloses a kind of two juxtaposed cylinders two stroke engine cylinder
Head jacket structure for water, its reasonable in design, it is disposed with independence and the cooling water channel being associated for each cylinder head, strengthens simultaneously
The turbulent flow in each region of water jacket, improves cooling effectiveness.
To achieve these goals, technical scheme: a kind of two juxtaposed cylinders two stroke engine cylinder head water jacket
Structure, it includes the water jacket body being located on the left cylinder head of two juxtaposed cylinders, right cylinder head, this left cylinder head, right cylinder head
Being integral structure, this water jacket body and described left cylinder head, right cylinder head are corresponding, and have on described water jacket body
Water inlet, described water jacket is the most internal includes relatively independent left cylinder head cooling water channel, right cylinder head cooling water channel, this left gas
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 head is more than
The water inlet being on the water jacket body corresponding to described left cylinder head, the identical air inlet side of right cylinder head；Cool down at left cylinder head
Having respectively on water route, right cylinder head cooling water channel described left cylinder head, the combustor of right cylinder head, spark plug is 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 on described water jacket body opposite side two ends, and with described left cylinder head, the identical air inlet side phase of right cylinder head
Right.
Further, having longitudinal breach in the middle part of described water jacket body, this longitudinal direction 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 direction breach；
Described main outlet is corresponding with described right cylinder head, and the water jacket body near described longitudinal breach has
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 injector installation site along described water jacket body
The circulation water channel of eddy flow cooling；There is on described right cylinder head cooling water channel the right cylinder injector installation position along described water jacket body
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；There is on described right cylinder head cooling water channel the right cylinder spark plug installation position along described water channel body
Put the circulation water channel of eddy flow cooling.
Further, described water jacket body has left cylinder head top outlet, right cylinder head top outlet, this left cylinder head
Top outlet, the corresponding and described left cylinder head cooling water channel of right cylinder head top outlet, right cylinder head cooling water channel communicate, and
This left cylinder head top outlet, right cylinder head the top corresponding and described left cylinder head of outlet, the top of combustion chamber phase of right cylinder head
Right and adjacent with described left cylinder injector installation site, right cylinder injector installation site.
Further, described left cylinder head top outlet, right cylinder head top outlet are steam 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 gap position；Described right cylinder head water inlet corresponding with described right cylinder cylinder head and
Away from described longitudinal gap 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 are introduced coolant by the water jacket of its corresponding left cylinder block, right cylinder block.
Beneficial effects of the present invention: reasonable in design, for each cylinder head be all disposed with independence and be associated cold
But water route, efficiently reduce the temperature difference of cylinder head air inlet side and exhaust side, reduce thermal stress, it is to avoid cylinder head heat exhaustion
Lost efficacy, and enhanced the turbulent flow in each region of water jacket simultaneously, improve cooling effectiveness；It addition, improve the cooling of combustor regional area
Liquid flowing velocity, allows steam overflow, it is to avoid vapour lock simultaneously in time.
Accompanying drawing explanation
Fig. 1 is the top view of cylinder head water jacket in the present invention；
Fig. 2 is the upward view of cylinder head water jacket in the present invention.
Detailed description of the invention
The present invention is further described below in conjunction with specific embodiment and accompanying drawing.
One the most described two juxtaposed cylinders two stroke engine cylinder head jacket structure for water, it includes is located at side by side
Water jacket body on the left cylinder head of twin-tub, right cylinder head, this left cylinder head, right cylinder head be integral structure, this water jacket
Body and described left cylinder head, right cylinder head are corresponding, and have water inlet on water jacket body, water jacket this most internal includes phase
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 head is more than being in
The water inlet on water jacket body corresponding to left cylinder head, the identical air inlet side of right cylinder head；At left cylinder head cooling water channel, right gas
Having respectively on cylinder head cooling water channel left cylinder head, the combustor of right cylinder head, spark plug is the circulating water that eddy flow cools down
Road.
The present invention uses eddy flow cooling to the cylinder head of left cylinder, right cylinder, specifically, left cylinder head cooling water channel has
There is the circulation water channel of the left cylinder injector installation site 13 eddy flow cooling along water jacket body；On right cylinder head cooling water channel, there is edge
The circulation water channel of the right cylinder injector installation site 14 eddy flow cooling of water jacket body；Have along water jacket on left cylinder head cooling water channel
The circulation water channel of the left cylinder spark plug installation site 10 eddy flow cooling of body；Have along water channel body on right cylinder head cooling water channel
Right cylinder spark plug installation site 11 eddy flow cooling circulation water channel.And optimize water inlet position, it is effectively reduced cylinder head and enters
Gas 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 two ends, water jacket body side, and with
Left cylinder head, right cylinder head identical exhaust side relative；Left cylinder head air inlet side water inlet 3, that main outlet 6 is in water jacket body is another
On two ends, 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.Having longitudinal breach 12 in the middle part of water jacket body, this longitudinal direction breach forms described one
Waling in the middle part of formula cylinder head, and this longitudinal direction 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, and the water jacket body near longitudinal breach 12 has outlet
Water channel, left cylinder head cooling water channel is connected with main outlet 6 by this outlet water channel.
There is left cylinder head top outlet 8, right cylinder head top outlet 9, this left cylinder head top outlet on water jacket body
8, right cylinder head top outlet 9 is corresponding and left cylinder head cooling water channel, right cylinder head cooling water channel communicate, and this left cylinder head top
Corresponding and left cylinder, right cylinder the top of combustion chamber of outlet 8, right cylinder head top outlet 9 is relative, and pacifies with left cylinder injector
Holding position 13, right cylinder injector installation site 14 are adjacent.This left cylinder head top outlet 8, right cylinder head top outlet 9 are water
Steam and coolant mixed export, be used for improve combustor regional area coolant flow speed, allows 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 head
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 lack
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 block, the water jacket of right cylinder block 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 provided the embodiment of the present invention above is described in detail, specific case used herein
Principle and embodiment to the embodiment of the present invention are set forth, and the explanation of above example is only applicable to help to understand this
The principle of inventive embodiments；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
All will change in formula and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a two juxtaposed cylinders two stroke engine cylinder head jacket structure for water, includes and is located at the left cylinder head of two juxtaposed cylinders, the right side
Water jacket body on cylinder head, this left cylinder head, right cylinder head be integral structure, this water jacket body and described left cylinder
Head, right cylinder head are corresponding, and have water inlet on described water jacket body, it is characterised in that: described water jacket is the most internal to be included
Having relatively independent left cylinder head cooling water channel, right cylinder head cooling water channel, this left cylinder head cooling water channel, right cylinder head cool down
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 head is more than being in
The water inlet on water jacket body corresponding to described left cylinder head, the identical air inlet side of right cylinder head；Left cylinder head cooling water channel,
Having respectively on right cylinder head cooling water channel described left cylinder head, the combustor of right cylinder head, spark plug is eddy flow cooling
Circulation water channel.
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most according to claim 1, it is characterised in that enter described in:
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 two ends, 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 with described left cylinder head, the identical air inlet side phase of right cylinder head
Right.
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most according to claim 2, it is characterised in that: described water
Having longitudinal breach (12) in the middle part of set body, this longitudinal direction breach (12) forms 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 direction breach (12)；
Described main outlet (6) is corresponding with described right cylinder head, and the water jacket body near described longitudinal breach (12) has
Outlet water channel, described left cylinder head cooling water channel is had to be connected with described main outlet (6) by this outlet water channel.
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most according to claim 1, it is characterised in that: a described left side
There is on cylinder head cooling water channel the circulation water channel of left cylinder injector installation site (13) the eddy flow cooling along described water jacket body；
There is on described right cylinder head cooling water channel the ring of right cylinder injector installation site (14) the eddy flow cooling along described water jacket body
Flowing flux.
5. according to the two juxtaposed cylinders two stroke engine cylinder head jacket structure for water described in claim 1 or 4, it is characterised in that: institute
State the circulation on left cylinder head cooling water channel with left cylinder spark plug installation site (10) the eddy flow cooling along described water jacket body
Water channel；There is on described right cylinder head cooling water channel right cylinder spark plug installation site (11) eddy flow along described water channel body cool down
Circulation water channel.
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most according to claim 4, it is characterised in that: described water
On set body, there is left cylinder head top outlet (8), right cylinder head top outlet (9), this left cylinder head top outlet (8), the right side
Corresponding and the described left cylinder head cooling water channel in cylinder head top outlet (9), right cylinder head cooling water channel communicate, and this left cylinder head top
Portion's outlet (8), the right corresponding and described left cylinder head of cylinder head top outlet (9), right cylinder head top of combustion chamber relative, and
Adjacent with described left cylinder injector installation site (13), right cylinder injector installation site (14).
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most according to claim 6, it is characterised in that: a described left side
Cylinder head top outlet (8), right cylinder head top outlet (9) are steam and coolant mixed export.
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most according to claim 3, it is characterised in that enter described in:
The mouth of a river also includes the left cylinder head water inlet (4) being connected with described left cylinder head cooling water channel and cold with described right cylinder head
But the right cylinder head water inlet (5) that water route is connected, this left cylinder head water inlet (4) is corresponding with described left cylinder head and is adjacent to institute
State longitudinal breach (12) position；Described right cylinder head water inlet (5) is corresponding with described right cylinder head and away from described longitudinal breach
(12) position.
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most according to claim 3, it is characterised in that: described water
It is provided with the left cylinder head outlet (7) being connected with described left cylinder head cooling water channel, this left cylinder head outlet on set body
(7), described main outlet (6) is corresponding with the cylinder head of described left cylinder, right cylinder.
Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water the most 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) are introduced coolant by the water jacket of its corresponding left cylinder block, right cylinder block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610788204.5A CN106224118A (en) | 2016-08-30 | 2016-08-30 | Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610788204.5A CN106224118A (en) | 2016-08-30 | 2016-08-30 | Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106224118A true CN106224118A (en) | 2016-12-14 |
Family
ID=58074980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610788204.5A Pending CN106224118A (en) | 2016-08-30 | 2016-08-30 | Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2275662A1 (en) * | 2009-06-17 | 2011-01-19 | Honda Motor Co., Ltd. | Cylinder head of water-cooled internal combustion engine and method of manufacturing same |
| CN102937054A (en) * | 2012-10-15 | 2013-02-20 | 安徽江淮汽车股份有限公司 | Water jacket of engine cylinder head |
| JP5177537B2 (en) * | 2008-09-30 | 2013-04-03 | マツダ株式会社 | Cylinder head structure |
| CN204511688U (en) * | 2015-01-21 | 2015-07-29 | 重庆凯特动力科技有限公司 | Cylinder head cooling jacket |
| CN205277611U (en) * | 2015-11-26 | 2016-06-01 | 重庆凯特动力科技有限公司 | Petrol engine cylinder cap |
| CN205977437U (en) * | 2016-08-30 | 2017-02-22 | 重庆高金实业有限公司 | Double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels |
-
2016
- 2016-08-30 CN CN201610788204.5A patent/CN106224118A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5177537B2 (en) * | 2008-09-30 | 2013-04-03 | マツダ株式会社 | Cylinder head structure |
| EP2275662A1 (en) * | 2009-06-17 | 2011-01-19 | Honda Motor Co., Ltd. | Cylinder head of water-cooled internal combustion engine and method of manufacturing same |
| CN102937054A (en) * | 2012-10-15 | 2013-02-20 | 安徽江淮汽车股份有限公司 | Water jacket of engine cylinder head |
| CN204511688U (en) * | 2015-01-21 | 2015-07-29 | 重庆凯特动力科技有限公司 | Cylinder head cooling jacket |
| CN205277611U (en) * | 2015-11-26 | 2016-06-01 | 重庆凯特动力科技有限公司 | Petrol engine cylinder cap |
| CN205977437U (en) * | 2016-08-30 | 2017-02-22 | 重庆高金实业有限公司 | Double -cylinder two -stroke -cycle engine cylinder head water jacket structure parallels |
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Application publication date: 20161214 |