CN101943076B - Cylinder cover cooling structure of engine - Google Patents
Cylinder cover cooling structure of engine Download PDFInfo
- Publication number
- CN101943076B CN101943076B CN201010511902A CN201010511902A CN101943076B CN 101943076 B CN101943076 B CN 101943076B CN 201010511902 A CN201010511902 A CN 201010511902A CN 201010511902 A CN201010511902 A CN 201010511902A CN 101943076 B CN101943076 B CN 101943076B
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- CN
- China
- Prior art keywords
- cooling
- fan
- cylinder head
- intake manifold
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/06—Engines with means for equalising torque
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/06—Guiding or ducting air to, or from, ducted fans
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
- F01P2001/026—Cooling cylinder heads
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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 relates to a cylinder cover cooling structure of an engine, which is characterized in that an intake manifold and a cooling fan are installed on the same side of the engine body, and the intake manifold is installed above the cooling fan and is provided with an integral outer case; the bottom of the outer case is provided with a suction port opening toward the inside of a fan housing, and the side part of the intake manifold is connected with a cylinder cover in a sealed mode; the center of the fan housing is provided with an air inlet, and the upper part of the fan housing is provided with an air outlet; the opening suction port is communicated with the air inlet at the upper part of the fan housing; and a first cooling channel and a second cooling channel are installed inside the cylinder cover, and a wind guide plate for guiding is installed on the side face of the first cooling channel so as to prevent hot air from flowing back to the cooling fan. The relative assembly positions of parts and components of the engine are skillfully arranged by using the structure characteristics of the parts and components per se, so that unnecessary structure can be simplified, and cost reduction and efficiency improvement are realized.
Description
Technical field
The present invention relates to a kind of cylinder head cooling structure of motor, specifically belong to field of power equipment technology.
Background technique
In existing engine cylinder cap technology, cylinder head is to be connected the intercommunicating pore that is arranged on cooling fan one side again after cooling fan and ventilation flue etc. are set, and cooling air is incorporated into the structure of cylinder head inside.So its complex structure, cooling ventilation duct are also complicated, cooling air hinders just many in the way of cylinder head inside, has reduced flow velocity, thereby has reduced cooling effectiveness.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby provide a kind of cooling mechanism of engine cylinder cap, the structure of the correlated parts when utilizing with the motor assembling can be simplified the cooling ventilation duct of cylinder head, realizes the reduction of cost and the raising of working efficiency.
According to technological scheme provided by the invention, the cylinder head cooling structure of motor comprises engine body, flywheel, cooling fan, fan guard, intake manifold, cylinder head, the flywheel of described engine body is fixed on an end of bent axle, a plurality of projectile tails are set on the outside peripheral part of described flywheel constitute cooling fan, described fan guard covers on the cooling fan, feature is: described intake manifold and cooling fan are installed in the same side of engine block, intake manifold is installed in the top of cooling fan, an all-in-one-piece shell is arranged on the described intake manifold, be installed in the top of fan guard; Described outer casing bottom is provided with the suction port that opens wide in the face of fan guard inside, and the sidepiece and the cylinder head of described intake manifold are tightly connected, and described fan guard central authorities are provided with suction port, and described fan guard top is provided with the air outlet; Described unlimited suction port communicates with the suction port on fan guard top; Described cylinder head inside is provided with first cooling channel and second cooling channel, and side, described first cooling channel is equipped with induced draft plate guiding, is back to the phenomenon of cooling fan again to prevent hot air.
Described cylinder head is provided with intake duct, and the intake duct both sides are provided with first intercommunicating pore and second intercommunicating pore, first intercommunicating pore and second intercommunicating pore and communicate with the cooling air passage that the intake manifold shell is guided respectively.The outer wall of described intake duct has certain angle, can guide the air from the intake manifold shell.
Formed cooling air passage between each supporting portion of the engine valve stem of the intake valve in first cooling channel of described cylinder head and the exhaust valve rod portion of exhaust valve, its cooling air channel roof are to be the structure of projection upward.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Utilize the structural feature of engine component itself, arrange its relative rigging position cleverly, thereby can simplify unnecessary structure, realize the reduction of cost and the raising of efficient.
Description of drawings
Fig. 1 is the cross-sectional figure of motor.
Fig. 2 is the cooling duct figure of motor.
Fig. 3 is the base map of engine intake manifold.
Fig. 4 is the sectional view of engine intake manifold.
Fig. 5 is the sectional drawing of engine fuel injector bar portion.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Fig. 1～shown in Figure 5 comprises 1-engine block, 2-flywheel, 2a-projectile tail, 3-cooling fan, 4-fan guard, 4a-suction port, 4b-side, 4c-bottom, 4d-air outlet, 5-intake manifold, 5a-shell, 5b-suction port, 5c-sidepiece, 6-cylinder head, 6a-intake duct, 6b-first intercommunicating pore, 6c-second intercommunicating pore, 7-first cooling channel, 8-second cooling channel, 9-induced draft plate, 10-intake valve, 10a-intake valve bar portion, 11-exhaust valve, 11a-exhaust valve rod portion, 12-cooling air passage, 13-oil sprayer bar portion.
The flywheel 2 of engine block 1 of the present invention is fixed on the end of bent axle, and a plurality of projectile tail 2a are set on the outside peripheral part of this flywheel 2, constitutes cooling fan 3, and has fan guard 4 to cover on the cooling fan 3.Described intake manifold 5 and cooling fan 3 are installed in the same side of engine block 1, and intake manifold 5 is installed in the top of cooling fan 3.Described fan guard 4 central authorities are suction port 4a, and side 4b and bottom 4c and engine block 1 are tightly connected, and top is provided with air outlet 4d.Cooling fan 3 is drawn into air in the fan guard 4, and a part of in addition air was sent to the 4d place, air outlet, top of fan guard 4 when engine block 1 was cooled off, and other component are advanced cooling.
An all-in-one-piece shell 5a is arranged on the intake manifold 5 of this engine block 1, be installed in the top of fan guard 4.The bottom of this shell 5a is provided with in the face of the fan guard 4 inner suction port 5b that open wide, and sidepiece 5c and cylinder head 6 are tightly connected.The air outlet 4d on fan guard 4 tops just in time is transported to air the bottom of intake manifold shell 5a, thereby is incorporated into cylinder head 6 inside.The shell 5a of intake manifold 5 has just played the effect of wind deflector like this, so there is no need to redesign the structure that the air that cooling fan 3 is carried is introduced cylinder head 6, has reduced cost.
The cylinder head cooling fan side of this engine block 1 is provided with intake duct 6a, and the both sides of intake duct 6a are provided with the first intercommunicating pore 6b and the second intercommunicating pore 6c, and communicates with cooling air passage that intake manifold shell 5a is guided.Described cylinder head 6 inside are provided with first cooling channel 7 and second cooling channel 8, and 7 sides, described first cooling channel are equipped with an induced draft plate 9 guiding, are back to the phenomenon of cooling fan 3 again to prevent hot air.The outer wall of described intake duct 6a has certain angle, can guide the air from intake manifold shell 5a, prevents that the hot air after the cooling air cylinder cap 6 flows in second cooling channel 8 in first cooling channel 7.
Formed cooling air passage 12 between each supporting portion of the 11a of exhaust valve rod portion of the engine valve stem 10a of intake valve 10 and exhaust valve 11 in described first cooling channel 7, its cooling air passage 12 tops are to be the structure of projection upward.Therefore, can enlarge the cross-section area of cooling air passage 12, make the cooling effect of cylinder head 6 better.
In described first cooling channel 7, the bar portion 13 of exposing oil sprayer, cooling air flows smoothly in bar portion 13 both sides of oil sprayer, so can effectively cool off oil sprayer.Improve cooling performance.
In general, the present invention can make a kind of cylinder head 6 structures of motor simpler, cools off more abundant.
Claims (4)
1. the cylinder head cooling structure of a motor, comprise engine body (1), flywheel (2), cooling fan (3), fan guard (4), intake manifold (5), cylinder head (6), the flywheel (2) of described engine body (1) is fixed on an end of bent axle, a plurality of projectile tails (2a) are set on the outside peripheral part of described flywheel (2) constitute cooling fan (3), described fan guard (4) covers on the cooling fan (3), it is characterized in that: described intake manifold (5) and cooling fan (3) are installed in the same side of engine block (1), intake manifold (5) is installed in the top of cooling fan (3), an all-in-one-piece shell (5a) is arranged on the described intake manifold (5), be installed in the top of fan guard (4); Described shell (5a) bottom is provided with in the face of the inner suction port (5b) that opens wide of fan guard (4), the sidepiece (5c) of described intake manifold (5) is connected with cylinder head (6), described fan guard (4) central authorities are provided with suction port (4a), and described fan guard (4) top is provided with air outlet (4d); Described unlimited suction port (5b) communicates with the air outlet (4d) on fan guard (4) top; Described cylinder head (6) inside is provided with first cooling channel (7) and second cooling channel (8), and side, described first cooling channel (7) is equipped with induced draft plate (9) guiding.
2. the cylinder head cooling structure of motor according to claim 1, it is characterized in that described cylinder head (6) is provided with intake duct (6a), intake duct (6a) both sides are provided with first intercommunicating pore (6b) and second intercommunicating pore (6c), and first intercommunicating pore (6b) and second intercommunicating pore (6c) communicate with the cooling air passage that intake manifold shell (5a) is guided respectively.
3. the cylinder head cooling structure of motor according to claim 2 is characterized in that the outer wall of described intake duct (6a) is provided with certain angle.
4. the cylinder head cooling structure of motor according to claim 1, it is characterized in that forming cooling air passage (12) between each supporting portion of exhaust valve rod portion (11a) of the engine valve stem (10a) of the intake valve (10) in described first cooling channel (7) and exhaust valve (11), described cooling air passage (12) top is projection upward.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010511902A CN101943076B (en) | 2010-10-19 | 2010-10-19 | Cylinder cover cooling structure of engine |
| PCT/CN2011/001581 WO2012051791A1 (en) | 2010-10-19 | 2011-09-19 | Cooling structure for engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010511902A CN101943076B (en) | 2010-10-19 | 2010-10-19 | Cylinder cover cooling structure of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943076A CN101943076A (en) | 2011-01-12 |
| CN101943076B true CN101943076B (en) | 2011-12-28 |
Family
ID=43435243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010511902A Active CN101943076B (en) | 2010-10-19 | 2010-10-19 | Cylinder cover cooling structure of engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101943076B (en) |
| WO (1) | WO2012051791A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943076B (en) * | 2010-10-19 | 2011-12-28 | 无锡开普动力有限公司 | Cylinder cover cooling structure of engine |
| CN102235342A (en) * | 2011-08-01 | 2011-11-09 | 东南大学 | Cooling structure of pump head manifold for micro air compressor |
| JP5825951B2 (en) * | 2011-09-21 | 2015-12-02 | 株式会社マキタ | Engine for portable work machines |
| CN103754374B (en) * | 2013-12-31 | 2016-06-29 | 湖北易瓦特科技股份有限公司 | Unmanned vehicle engine cooling mechanism |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56110509A (en) * | 1980-02-05 | 1981-09-01 | Yanmar Diesel Engine Co Ltd | Air-cooled type internal combustion engine |
| JPS61135960A (en) * | 1984-12-04 | 1986-06-23 | Yanmar Diesel Engine Co Ltd | Cylinder head for air-cooled type internal combustion engine |
| JP3355032B2 (en) * | 1994-06-11 | 2002-12-09 | 本田技研工業株式会社 | Forced air-cooled internal combustion engine |
| JP2004270640A (en) * | 2003-03-11 | 2004-09-30 | Yanmar Co Ltd | Engine upper structure |
| DE602005023476D1 (en) * | 2004-07-22 | 2010-10-21 | Yanmar Co Ltd | Motor |
| JP4392300B2 (en) * | 2004-07-22 | 2009-12-24 | ヤンマー株式会社 | Cylinder head cooling structure |
| CN101082311A (en) * | 2007-06-29 | 2007-12-05 | 无锡开普动力有限公司 | Wind cooling diesel engine cylinder cover |
| CN101603459A (en) * | 2009-04-30 | 2009-12-16 | 蔡建平 | Diesel generating set |
| CN101943076B (en) * | 2010-10-19 | 2011-12-28 | 无锡开普动力有限公司 | Cylinder cover cooling structure of engine |
| CN201810410U (en) * | 2010-10-19 | 2011-04-27 | 无锡开普动力有限公司 | Cylinder cover cooling structure of engine |
-
2010
- 2010-10-19 CN CN201010511902A patent/CN101943076B/en active Active
-
2011
- 2011-09-19 WO PCT/CN2011/001581 patent/WO2012051791A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012051791A1 (en) | 2012-04-26 |
| CN101943076A (en) | 2011-01-12 |
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Effective date of registration: 20191011 Granted publication date: 20111228 |
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Date of cancellation: 20201120 Granted publication date: 20111228 |