CN104500257B - Machine is led in air blast cooling - Google Patents
Machine is led in air blast cooling Download PDFInfo
- Publication number
- CN104500257B CN104500257B CN201410762490.9A CN201410762490A CN104500257B CN 104500257 B CN104500257 B CN 104500257B CN 201410762490 A CN201410762490 A CN 201410762490A CN 104500257 B CN104500257 B CN 104500257B
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- Prior art keywords
- kuppe
- cylinder head
- machine
- crankcase
- led
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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
- F02F7/00—Casings, e.g. crankcases or frames
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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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
- F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
- F02F1/065—Shape or arrangement of cooling fins; Finned cylinders with means for directing or distributing cooling medium
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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
- F02F1/28—Cylinder heads having cooling means for air cooling
- F02F1/30—Finned cylinder heads
- F02F1/34—Finned cylinder heads with means for directing or distributing cooling medium
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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 logical machine of air blast cooling, the cylinder head and periphery connected including crankcase and crankcase forms the cover body assembly for forcing air channel in crankcase and cylinder head, cylinder head surface is provided with fin and forms cooling air channel, cover body assembly includes that the lower kuppe that the peripheral cylinder head is arranged, lower kuppe inner face are placed equidistant with the root of each fin in cylinder head surface；Gap uniformity between controllable air conducting cover and each fin root of cylinder head is arranged, make cooling wind unobstructed, pass through, the wind speed and air quantity of cooling air-flow are uniform in the cooling air channel that the fin so as to arrange at cylinder head is formed, reduce the loss of cooling air-flow, it is ensured that radiating effect.
Description
Technical field
The present invention relates to machine cooling field is led in air blast cooling, machine is led in more particularly to a kind of air blast cooling.
Background technology
The cooling air channel of traditional general gasoline engines the forced air cooling, generally by casing and the fin and fan of cylinder head
Cap assembly and more air conducting cover are combined, and fan guard is with air conducting cover using injection or metal stamping process system
Make, the mode that blending bolt is fixed is connected with casing or cylinder head, and the forming process of cooling air-flow is：Air impeller effect under,
The certain space that fan cap assembly is formed with casing, cylinder head is constantly gathered, increases the space pressure, under pressure,
Air by along the reserved passageway being connected with this space i.e. by air conducting cover and casing and cylinder head groups of fins into air channel stream
Dynamic, to take away the heat of fin, reach the purpose of cooling engine.Existing gasoline engine kuppe and casing and cylinder head each
Fin top spacing is consistent, and wind is really passed by from fin root in air channel, because of air conducting cover and radiating
Between piece root, gap is uneven, and at cylinder head bolt mounting holes, fin root is little compared with other positions away from kuppe distance, this meeting
Cause that cooling air-flow wind speed and air quantity at the cylinder head bolt are impacted, cooling air-flow loss is more, affects radiating effect.
Accordingly, it would be desirable to be improved with the mode that is correspondingly arranged of fin to the air conducting cover of existing logical box body, control
Between air conducting cover processed and fin root, gap uniformity is arranged, in the cooling air channel for being formed the fin arranged at cylinder head
The wind speed and air quantity of cooling air-flow is uniform, reduces the loss of cooling air-flow, so as to ensure radiating effect.
Content of the invention
In view of this, the present invention provides a kind of air blast cooling logical machine, can control air conducting cover and each fin of cylinder head
Gap uniformity between root is arranged, the wind speed and wind of cooling air-flow in the cooling air channel for being formed the fin arranged at cylinder head
Amount is uniform, reduces the loss of cooling air-flow, so as to ensure radiating effect.
The logical machine of the air blast cooling of the present invention, the cylinder head connected including crankcase and crankcase and periphery are in crankcase and cylinder
Capitiform is provided with fin and forms cooling air channel into the cover body assembly for forcing air channel, cylinder head surface, and cover body assembly includes periphery
The lower kuppe that cylinder head is arranged, lower kuppe inner face are placed equidistant with the root of each fin in cylinder head surface；Wherein, as schemed institute
Show, cylinder head is arranged on above crankcase, fin be set on cylinder head, between fin, form air channel, force wind to pass through from air channel,
Cylinder head is lowered the temperature, reaches the effect of radiating, fin root refers to the junction of fin and cylinder head surface, lower kuppe is surrounded
Cylinder head both sides are arranged, and form cooling air channel, and lower water conservancy diversion cover inner surface is corresponding each with lower kuppe installation site with cylinder head
The root distance of fin is consistent, the wind speed of cooling air-flow in the cooling air channel formed beneficial to the fin for ensureing to arrange at cylinder head
Uniform with air quantity, reduce the loss of cooling air-flow, so as to ensure radiating effect.
Further, cover body assembly also includes that casing deep bead, cylinder head cover and fan guard, fan guard rear end face are kept out the wind with casing
The front end face periphery of plate and lower kuppe overlaps setting in the way of smooth laminating；Cover body assembly be periphery in cylinder head and crankcase
Cover body structure, wherein fan guard is used for surrounding blast fan, and blast fan is used for producing forces wind, commonly uses, case on logical machine
Arrange on rear side of the casing of body deep bead periphery, the cooling space cooled down by lower box is formed with fan guard；Existing fan guard with
Kuppe certainly will cause a lot of windage losses to the mode being bolted as kuppe and fan guard coordinate not closely,
Radiating effect is affected, the mode of laminating is smoothed so that is connected by preload piece after fan guard assembling and is caused to coordinate closely, entirely cold
But airtight space is improved, and reduces windage loss.
Further, the front end face periphery of casing deep bead and lower kuppe is each formed with tying for smoothing the tenon of overlap joint
Structure, the rear end face periphery of fan guard are formed and the cofferdam for being overlapped in the tenon structure；The overlapping mode of this kind of smooth laminating, can
Ensure good appearance, realize being brought into close contact by pretension, be not required to bonding, convenient dismounting and install, casing deep bead, cylinder head cover and
Lower kuppe front end face periphery is Chong Die with the cofferdam of fan guard, is eliminated by tenon structure and overlaps the difference in height for producing, it is ensured that flat
Sliding, so as to ensure aesthetic appearance, and the stabilized structure after laminating is caused, further reduce vibration caused by travelling.
Further, lower kuppe includes bottom right kuppe and lower-left kuppe, bottom right kuppe and lower-left kuppe difference
It is correspondingly connected to the left and right sides of the casing deep bead；Left and right two parts of cylinder head are formed and is surrounded, form good cooling
Air channel, easy installation and removal, and be easily changed, and cause to be formed as above with cylinder head or so two-part fin
Uniform gap, it is ensured that the wind speed and air quantity of cooling air-flow is uniform.
Further, cover body assembly also includes kuppe, and upper kuppe is split-type structural, including upper left kuppe and the right side
Upper kuppe, upper left kuppe and upper right kuppe are coordinated with the fan guard plug-in type；It is easy to operate, improves cooling space
Seal.
Further, plugboard is provided with the inside of fan guard, and plugboard both sides are separately provided for upper left kuppe and the right side
The inserting groove of upper kuppe grafting；Each inserting groove is formed by two plug sides being arranged on plugboard, and inserting groove is
After upper kuppe grafting can be ensured, tilting mode is arranged；Realize simply, being easy to operate.
Further, upper left kuppe and the upper right kuppe are L-shaped structure, are formed along grafting direction front end and are oriented to
Portion, rear end form limiting section；Guide part plays guide effect in grafting, and limiting section causes to carry out when certain distance is plugged into
Spacing, beneficial to control stroke.
Further, crankcase includes integrally formed base, base be provided with reinforcement and formed for cool down crankcase with
The lower cooling air channel of machine oil, lower cooling air channel are connected with the cavity in fan guard with the air vent of Base edge by arranging；Logical
The lower cooling air channel for being formed is crossed, when cooling air-flow flows through lower cooling air channel after water conservancy diversion, can be effectively to gathering bent axle
The oil temperature cooling in bottom portion, so as to ensure cooling effect of the machine oil to engine component, maintains the flat of engine operation
Stability, and reduce the gas discharge of engine；In addition, reinforcement can not only effectively increase the intensity of crankcase, simultaneously as
Crankcase bottom thickness can be appropriate on the basis of proof strength thinning, so as to reduce production, assembly cost.
Further, reinforcement includes along the suitable reinforcement of cooling air-flow direction arrangement and inverse with intersected vertically along reinforcement
Reinforcement, the height along reinforcement are more than the height of inverse reinforcement；Lower between cooling air channel and kuppe by Base edge
Air vent is connected, and rotating cooling air-flow enters base lower surface from air vent, and due to effect of inertia, cooling air-flow is by edge
Air vent axis direction continues flowing, and therefore the direction is cooling air-flow direction, and the setting of reinforcement increased bottom heat radiation
Area, strengthens cooling effect, more than the height of inverse reinforcement, the height along reinforcement ensures that cooling air-flow flows along predetermined direction,
Effectively utilizes cooling air-flow.
Beneficial effects of the present invention：The logical machine of the air blast cooling of the present invention, lower kuppe keep one with fin root spacing
Cause, the gap uniformity that can control between air conducting cover and each fin root of cylinder head is arranged, and makes cooling wind unobstructed, suitable
Profit passes through, and in the cooling air channel that the fin so as to arrange at cylinder head is formed, the wind speed and air quantity of cooling air-flow are uniform, reduce cold
But the loss of air-flow, it is ensured that radiating effect.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is the lower kuppe of the present invention and cylinder head fin cooperation schematic diagram；
Fig. 3 is the fan guard of the present invention and upper kuppe connection diagram；
Fig. 4 is the lower kuppe and casing air damper structure schematic diagram of the present invention；
The fan-cover structure schematic diagram of Fig. 5 present invention；
Fig. 6 is the lower kuppe structural representation of the present invention；
Fig. 7 is the crankcase base schematic diagram of the present invention.
Specific embodiment
As shown in the figure：The logical machine of the air blast cooling of the present embodiment, the cylinder head 2 connected including crankcase 1 and crankcase 1 and outer
Enclose the cover body assembly that pressure air channel is formed in crankcase 1 and cylinder head 2,2 surface of cylinder head is provided with fin 3 and forms cooling wind
Road, cover body assembly include the lower kuppe 4 that peripheral cylinder head 2 is arranged, lower 4 inner face of kuppe and each fin 3 in 2 surface of cylinder head
Root is placed equidistant；Wherein, as illustrated, cylinder head 2 is arranged on above crankcase 1, fin 3, fin 3 are set on cylinder head 2
Between formed air channel, force wind pass through from air channel, cylinder head 2 is lowered the temperature, reaches the effect of radiating, 3 root of fin refers to radiating
Piece 3 and the junction on 2 surface of cylinder head, lower kuppe 4 surround 2 both sides of cylinder head and arrange, and form cooling air channel, table in lower kuppe 4
Face is consistent with the root distance of each fin 3 corresponding with lower 4 installation site of kuppe at cylinder head 2, at guarantee cylinder head 2
In the cooling air channel that the fin 3 of setting is formed, the wind speed and air quantity of cooling air-flow are uniform, reduce the loss of cooling air-flow, so as to
Ensure radiating effect.
In the present embodiment, cover body assembly also includes that casing deep bead 5 and fan guard 7,7 rear end face of fan guard are kept out the wind with casing
The front end face periphery of plate 5 and lower kuppe 4 overlaps setting in the way of smooth laminating；In addition, also including cylinder head cover 6, cover body is total
Into being peripheral in the cover body structure of cylinder head 2 and crankcase 1, wherein fan guard 7 is used for surrounding blast fan, and blast fan is used for producing
Raw pressure wind, commonly uses on logical machine, arranges, formed to lower box cooling with fan guard 7 on rear side of 5 peripheral casing of casing deep bead
Cooling space；Existing fan guard 7 and kuppe to the mode that is bolted, as kuppe is coordinated with fan guard 7
Not closely, a lot of windage losses certainly will be caused, radiating effect is affected, the mode of laminating is smoothed so that fan guard 7 passes through after assembling
Preload piece connects so that coordinating closely, whole cooling airtight space raising reduces windage loss.
In the present embodiment, the front end face periphery of casing deep bead 5 and lower kuppe 4 is each formed with the tenon for smooth overlap joint
Header structure 8, the rear end face periphery of fan guard 7 are formed and the cofferdam 9 for being overlapped in the tenon structure 8；This kind smooths taking for laminating
Connect mode, it is ensured that good appearance, realize being brought into close contact by pretension, be not required to bonding, conveniently dismounting and installation, casing deep bead
5 and 4 front end face periphery of lower kuppe Chong Die with the cofferdam of fan guard 7, by tenon structure 8 eliminate overlap produce difference in height,
Ensure to smooth, so as to ensure aesthetic appearance, and cause the stabilized structure after laminating, further reduce and travel caused vibration.
In the present embodiment, lower kuppe 4 includes bottom right kuppe 4a and lower-left kuppe 4b, bottom right kuppe 4a and lower-left
Kuppe 4b is connected respectively in the left and right sides of the casing deep bead 5；Left and right two parts of cylinder head 2 are formed and are surrounded,
Good cooling air channel, easy installation and removal is formed, and is easily changed, and caused and 2 or so two-part radiating of cylinder head
Piece 3 forms uniform gap as above, it is ensured that the wind speed and air quantity of cooling air-flow is uniform.
In the present embodiment, cover body assembly also includes kuppe, and the upper kuppe is split-type structural, leads including upper left
Stream cover 10 and upper right kuppe 11, upper left kuppe 10 and upper right kuppe 11 are coordinated with 7 plug-in type of the fan guard；It is easy to
Operation, improves cooling airtight space.
In the present embodiment, plugboard 12 on the inside of fan guard 7, is provided with, 12 both sides of plugboard are separately provided for upper left and lead
Stream cover 10 and the inserting groove 13 of 11 grafting of upper right kuppe；Each inserting groove 13 is inserted by be arranged on plugboard 12 two
Edge fit is formed, and inserting groove 13 is arranged for tilting mode after can ensureing upper kuppe grafting；Realize simply, being easy to operate.
In the present embodiment, upper left kuppe 10 and the upper right kuppe 11 are L-shaped structure, along grafting direction front end shape
Into guide part (being guide part 14 and guide part 14a in figure), it (is limiting section 15 and limiting section in figure that rear end forms limiting section
15a)；Guide part plays guide effect in grafting, limiting section cause to carry out when certain distance is plugged into spacing, beneficial to control
Stroke.
In the present embodiment, crankcase 1 includes integrally formed base 16, and base 16 is provided with reinforcement and is formed for cooling down
Crankcase 1 and the lower cooling air channel 17 of machine oil, lower cooling air channel 17 is by arranging air vent 18 and fan with 16 edge of base
Cavity connection in cover 7；By the lower cooling air channel 17 for being formed, when cooling air-flow flows through lower cooling air channel 17 after water conservancy diversion,
Effectively the oil temperature for gathering 1 bottom of crankcase can be lowered the temperature, so as to ensure cooling of the machine oil to engine component
Effect, maintains engine traveling comfort, and reduces the gas discharge of engine；In addition, reinforcement effectively can not only increase
Plus the intensity of crankcase 1, simultaneously as what 1 bottom thickness of crankcase can be appropriate on the basis of proof strength is thinning, so as to
Reduce production, assembly cost.
In the present embodiment, reinforcement is included along suitable the reinforcement 19 of cooling air-flow direction arrangement and vertical with suitable reinforcement 19
Intersecting inverse reinforcement 20, the height along reinforcement 19 are more than the height of inverse reinforcement 20；Lower cooling air channel 17 and kuppe it
Between connected by the air vent 18 at 16 edge of base, rotating cooling air-flow enters 16 lower surface of base from air vent 18,
As effect of inertia, cooling air-flow will continue flowing along 18 axis direction of air vent, therefore the direction is cooling air-flow direction,
The setting of reinforcement increased bottom heat radiation area, strengthen cooling effect, and the height along reinforcement 19 is more than inverse reinforcement 20
Highly ensure that cooling air-flow flows along predetermined direction, effectively utilizes cooling air-flow.
Finally illustrate, above example is only unrestricted in order to technical scheme to be described, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, which all should be covered at this
In the middle of the right of invention.
Claims (8)
1. machine is led in a kind of air blast cooling, it is characterised in that：The cylinder head connected including crankcase and crankcase and periphery are in crankcase
The cover body assembly for forcing air channel is formed with cylinder head, and the crankcase is provided with integrally formed base, and the cylinder head surface is provided with
Fin simultaneously forms cooling air channel, the cover body assembly include outer surround the lower kuppe that the cylinder head is arranged, described under lead
Stream cover inner face is placed equidistant with the root of each fin in cylinder head surface；The cover body assembly also includes casing deep bead and fan
Cover, the fan guard rear end face are overlapped in the way of smooth laminating with the front end face periphery of the casing deep bead and lower kuppe
Arrange.
2. machine is led in air blast cooling according to claim 1, it is characterised in that：Before the casing deep bead and lower kuppe
End face periphery is each formed with for smoothing the tenon structure for overlapping, and the rear end face periphery of the fan guard forms and is overlapped in described
The cofferdam of tenon structure.
3. machine is led in air blast cooling according to claim 1, it is characterised in that：The lower kuppe include bottom right kuppe and
Lower-left kuppe, the bottom right kuppe and lower-left kuppe are connected respectively in the left and right sides of the casing deep bead.
4. machine is led in air blast cooling according to claim 1, it is characterised in that：The cover body assembly also includes kuppe,
The upper kuppe is split-type structural, including upper left kuppe and upper right kuppe, the upper left kuppe and the upper right
Kuppe is coordinated with the fan guard plug-in type.
5. machine is led in air blast cooling according to claim 4, it is characterised in that：Plugboard is provided with the inside of the fan guard,
The plugboard both sides are separately provided for the inserting groove of upper left kuppe and upper right kuppe grafting.
6. machine is led in air blast cooling according to claim 5, it is characterised in that：The upper left kuppe and the upper right water conservancy diversion
Cover is L-shaped structure, forms guide part along grafting direction front end, and rear end forms limiting section.
7. machine is led in air blast cooling according to claim 1, it is characterised in that：The base is provided with reinforcement and is formed to be used for
The lower cooling air channel of the crankcase and machine oil is cooled down, the lower cooling air channel is by arranging air vent and wind with Base edge
Cavity connection in fan cover.
8. machine is led in air blast cooling according to claim 7, it is characterised in that：The reinforcement is included along cooling air-flow direction
The suitable reinforcement of arrangement and the inverse reinforcement intersected vertically with the suitable reinforcement, the height along reinforcement is more than described inverse
The height of reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410762490.9A CN104500257B (en) | 2014-12-11 | 2014-12-11 | Machine is led in air blast cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410762490.9A CN104500257B (en) | 2014-12-11 | 2014-12-11 | Machine is led in air blast cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500257A CN104500257A (en) | 2015-04-08 |
| CN104500257B true CN104500257B (en) | 2017-03-15 |
Family
ID=52941695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410762490.9A Active CN104500257B (en) | 2014-12-11 | 2014-12-11 | Machine is led in air blast cooling |
Country Status (1)
| Country | Link |
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| CN (1) | CN104500257B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227254A (en) * | 1997-02-14 | 1998-08-25 | Yanmar Diesel Engine Co Ltd | Air-cooled engine |
| DE60311419T2 (en) * | 2003-03-31 | 2007-10-18 | Kubota Corp. | Inclined internal combustion engine |
| US7523726B2 (en) * | 2006-12-04 | 2009-04-28 | Kubota Corporation | Air-cooled V-shaped engine |
| CN101349211A (en) * | 2008-08-11 | 2009-01-21 | 无锡开普动力有限公司 | Body air duct of V type air-cooled diesel engine |
| CN203717152U (en) * | 2013-12-17 | 2014-07-16 | 隆鑫通用动力股份有限公司 | Air-cooled engine case body and engine thereof |
| CN204283657U (en) * | 2014-12-11 | 2015-04-22 | 隆鑫通用动力股份有限公司 | Logical box body assembly |
-
2014
- 2014-12-11 CN CN201410762490.9A patent/CN104500257B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104500257A (en) | 2015-04-08 |
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