CN101275485B - Cooling air duct of engine - Google Patents
Cooling air duct of engine Download PDFInfo
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- CN101275485B CN101275485B CN2008100237647A CN200810023764A CN101275485B CN 101275485 B CN101275485 B CN 101275485B CN 2008100237647 A CN2008100237647 A CN 2008100237647A CN 200810023764 A CN200810023764 A CN 200810023764A CN 101275485 B CN101275485 B CN 101275485B
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- wall
- air duct
- cooling
- guide wall
- cylinder head
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Abstract
The invention relates to a cooling air channel of an engine, belonging to the field of power device technology. The invention is characterized in that a engine cylinder is provided with cooling air channel guiding walls respectively arranged on the upper and lower parts of the cylinder, forming an upper air channel guiding wall and a lower air channel guiding wall; the upper air channel guiding wall and the lower air channel guiding wall surround radiating fins at the cylinder; a fan cover is provided with a ring-shaped sealing belt, the inner cavity of the fan case is equipped with a spiral wall, the spiral wall, the body of the fan case and the engine and a fan form a spiral channel; the air inlet side of a cylinder cover is provided with a cooling air channel connecting wall and a guiding wall; the upper and lower surfaces of the cylinder cover, which are perpendicular to the rings-shaped sealing belt of the fan case, are equipped with an air guiding plate and a supporting plate. According to the invention, air is blown into the spiral case channel of the fan case by a fan, forming cooling air having a certain pressure and flow, by the guiding action of the cooling air channel, the cooling air is collected to the high temperature part around a combustion chamber, thus cooling the engine effectively.
Description
Technical field
The present invention relates to a kind of cooling duct of motor, specifically a kind of novel cooling duct belongs to field of power equipment technology.
Background technique
In prior art, in traditional single-cylinder engine, the cooling duct of motor is unenclosed construction substantially, and the cooling air of motor is when arriving the engine high-temperature position like this, in process of flowing, lose a part, can not accomplish to concentrate the effect in cooling down high-temperature district.Particularly to big single engine, because fuel burns in the firing chamber and sends a large amount of heat, the engine part that makes the firing chamber contact high-temperature fuel gas on every side is subjected to heat intensive, if do not guarantee good cooling, motor will be overheated, causes work to worsen.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby provide a kind of cooling duct of motor, air is squeezed into the cooling air that forms certain blast, certain flow in the spiral case passage of fan guard by fan, leading role through cooling duct, cooling air is focused on firing chamber high temperature position on every side, play the effect of efficient cooled engine.
Main solution of the present invention is achieved in that
The cylinder head of motor of the present invention is installed in the tilting cylinder barrel top of engine body, is furnished with the radiating fin that is used for cooling off on the cylinder head; Fan is housed in the fan guard, at fan guard inner close fitting fan guard inwall the fixed plate of kick-starter is installed, and kick-starter is installed on the fixed plate; The crankcase cover of motor is installed on the junction plane of exhaust side of engine body, feature is to be provided with the cooling duct guide wall Unitarily molded with engine body at the tilting cylinder barrel of body place, the air channel guide wall is arranged in tilting cylinder barrel upper and lower, forms upper air duct guide wall, lower air duct guide wall; Upper air duct guide wall and lower air duct guide wall are surrounded cylinder barrel place radiating fin wherein; Fan guard is provided with belt sealing strip, and the inner chamber of fan guard is established and is formed with the spiral wall, the common spiral case passage that forms between the body of spiral wall, fan guard and motor and fan; Be provided with and cylinder head all-in-one-piece cooling duct connecting wall and guiding wall in cylinder head air inlet side; Belt perpendicular upper and lower two faces of sealing strip of cylinder head and fan guard are respectively equipped with induced draft plate and dunnage; Induced draft plate is installed in the cylinder head below, and three limits of induced draft plate are sealed in the lower air duct guide wall respectively, cooling duct connects
On the guiding wall on wall and the cylinder head, the another side of induced draft plate extends to exhaust side; Dunnage is installed in the cylinder head top, with upper air duct guide wall be adjacent on one side, another side and belt sealing strip are adjacent to.Wherein, described dunnage is by the metal manufacturing, can wind-guiding, also other mechanism can be installed.
Described crankcase cover is provided with the cooling air guide plate integrally molded with crankcase cover, and fits with the extension of upper air duct guide wall, lower air duct guide wall, and the guiding cooling air is around relief opening.
Described cooling duct connecting wall is connected with guiding wall.
Described spiral wall is formed on the inner chamber of fan guard, and a part is molded together with fan guard, and another part is formed on the fixed plate.
Described upper air duct guide wall, lower air duct guide wall extend to exhaust side from the engine charge side.
The belt sealing strip of described cooling duct fan guard is sealed in the belt band of body, on upper air duct guide wall, lower air duct guide wall, cylinder head connecting wall, induced draft plate and the formed junction plane of dunnage.
Compared with the prior art the present invention has the following advantages:
Compact overall structure of the present invention, rationally, good sealing effect; Cooling air duct construction can well form spiral wind at engine interior, and spiral wind can be directed to the high temperature position of motor, behind the whole cooled engine, enters in the atmosphere after entering exhaust side cooled exhaust pipe and silencing apparatus; Can guarantee the big place of motor heating value (as around the cylinder, outlet pipe) effectively cool off, cooling effect is remarkable, beautiful shape, simplicity generosity.
Description of drawings
Fig. 1 is the plan view of structure of the present invention.
Fig. 2 is the left view of structure of the present invention.
Fig. 3 is the rear view of structure of the present invention.
Fig. 4 is the plan view of structure of the present invention.
Fig. 5 be after structure of the present invention removes fan guard to view.
Fig. 6 is the sectional view of structure of the present invention along the A-A line.
Fig. 7 be structure fan guard inner chamber of the present invention to view.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As comprising in Fig. 1～7: the body 1 of motor, cylinder barrel 2, sense of rotation 3, upper air duct guide wall 4, lower air duct guide wall 5, radiating fin 6, double-screw bolt 7, double-screw bolt 8, fan guard 9, fixed plate 10, nut 11, nut 12, kick-starter 13, annular sealing strip 14, spiral wall 15, guide plate 16, guide plate 17, cylinder head 18, connecting wall 19, induced draft plate 20, dunnage 21, guiding wall 22, go in ring be with 23, crankcase cover 24, cooling air guide plate 25, bent axle 26, flywheel 27, nut 28, starting dog dish 29, fan 30, spiral case passage 31 and starting point 32.
As Fig. 1～shown in Figure 7: the body 1 of motor of the present invention, 2 places are provided with upper air duct guide wall 4, the lower air duct guide wall 5 that is molded together with animal economy at the tilting cylinder barrel of body, and upper air duct guide wall 4, lower air duct guide wall 5 are arranged in tilting cylinder barrel 2 above-below directions.This upper air duct guide wall 4 and lower air duct guide wall 5 are surrounded body cylinder barrel 2 place's radiating fin 6 wherein, and described upper air duct guide wall 4, lower air duct guide wall 5 extend to exhaust side from the engine charge side.Double-screw bolt 7, double-screw bolt 8 one ends are installed in respectively on the body 1, and the double-screw bolt 7 and double-screw bolt 8 the other ends pass fixed plate 10, fan guard 9 successively, and are outside with nut 11,12 and tight.At fan guard 9 inner close fitting fan guard inwalls the fixed plate 10 of kick-starter is installed, kick-starter 13 is installed on the fixed plate 10.The fan guard of motor has belt sealing strip 14, and the inner chamber of fan guard 9 is formed with spiral wall 15, and spiral wall 15 parts are together Unitarily molded with fan guard 9, and another part is formed by the guide plate 16, the guide plate 17 that are connected on the fixed plate 10.Fan 30 is housed in the fan guard 9, can rotate synchronously with bent axle.30 common spiral case passages 31 that form of the body 1 of above-mentioned spiral wall 15, fan guard 9, motor and fan, this spiral case passage 31 is progressively increased by little along fan sense of rotation 3 section area.The cylinder head 18 of motor is installed in tilting cylinder barrel 2 tops of engine body 1, be furnished with the radiating fin that is used for cooling off on the cylinder head 18, be provided with and cylinder head all-in-one-piece cooling duct connecting wall 19 and guiding wall 22 in cylinder head 18 air inlet sides, cooling duct connecting wall 19 is connected with guiding wall 22.On cylinder head 19, be respectively equipped with induced draft plate 20 and dunnage 21 with said fan cover perpendicular upper and lower two faces of sealing strip 14 that go in ring.Induced draft plate 20 is installed in cylinder head 18 belows, and three limits of induced draft plate 20 are sealed in respectively on body lower air duct guide wall 5, the cylinder head on the guiding wall 22 on the connecting wall 19 and cylinder head, Yi Bian and extend to exhaust side in addition.Dunnage 21 is installed in cylinder head 18 tops, with body upper air duct guide wall 4 be adjacent on one side, the belt sealing strip 14 with fan guard is adjacent on one side, is separately fixed on body 1 and the cylinder head 18, and extends to exhaust side.The belt sealing strip 14 of said fan cover be sealed in respectively body go in ring accordingly be with 23 and the upper air duct guide wall 4 of body, lower air duct guide wall 5, cylinder head connecting wall 19, induced draft plate 20, dunnage 21 formed junction planes on.The crankcase cover 24 of motor is installed on the junction plane of exhaust side of engine body 1, on crankcase cover 24, be provided with the cooling air guide plate 25 integrally molded equally with crankcase cover, can fit with the extension of body upper air duct guide wall 4, lower air duct guide wall 5, the guiding cooling air is around relief opening.
Bent axle 26 is bearing on the body 1 of motor, and flywheel 27 usefulness nuts 28 are locked on the bent axle 26 of motor, and starting dog dish 29 compresses fan 30 and is fixed on the flywheel 27.
Working principle of the present invention and cooling procedure:
Because spiral case passage 31 is annular flow paths, progressively increase from starting point 32 along fan sense of rotation 3 section area by little, when the bent axle 26 of motor drives fan 30 rotations, the effect of air by fan 30 enters into from the intake grill of kick-starter 13 in the spiral case passage 31 of fan guard and forms the cooling airs with certain blast and certain flow, cooling air caused radiating fin 6 places of body cylinder barrel 2 and cylinder head 18 air inlet face under the effect of fan guard 9.Because the belt sealing strip 14 of said fan cover abuts in the upper air duct guide wall 4 of body, lower air duct guide wall 5, the connecting wall 19 of cylinder head, on induced draft plate 20 and the dunnage 21, cooling air is under the guiding of body upper air duct guide wall 4 and lower air duct guide wall 5, pass body cylinder barrel 2 and upper air duct guide wall 4 successively, heat dissipation channel between lower air duct guide wall 5 and cylinder barrel, the cooling duct that cooling duct that cylinder head 18 and induced draft plate are 20 and cylinder head 18 and dunnage are 21 flow to around the relief opening, after entering cooled exhaust pipe and silencing apparatus at last, enter in the atmosphere.
Claims (6)
1. the cooling duct of a motor adopts the cylinder head (18) of motor to be installed in body cylinder barrel (2) top of engine body (1), is furnished with the radiating fin of cooling on the cylinder head (18); Fan (30) is housed in the fan guard (9), and at the fixed plate (10) of fan guard (9) inwall installation kick-starter, kick-starter (13) is installed on the fixed plate (10); The crankcase cover of motor (24) is installed on the junction plane of exhaust side of engine body (1), it is characterized in that locating to be provided with and Unitarily molded upper air duct guide wall (4), the lower air duct guide wall (5) of engine body (1), be arranged in body cylinder barrel (2) upper and lower at body cylinder barrel (2); Upper air duct guide wall (4) and lower air duct guide wall (5) will be arranged on radiating fin on the cylinder barrel (6) and surround wherein; Fan guard (9) is provided with belt sealing strip (14), and the inner chamber of fan guard (9) is formed with spiral wall (15), the common spiral case passage (31) that forms between the body (1) of spiral wall (15), fan guard (9) and motor and fan (30); Be provided with and cylinder head (18) all-in-one-piece cooling duct connecting wall (19) and guiding wall (22) in cylinder head (18) air inlet side; Perpendicular upper and lower two faces of cylinder head (18) and belt sealing strip (14) are respectively equipped with induced draft plate (20) and dunnage (21); Induced draft plate (20) is installed in cylinder head (18) below, and three limits of induced draft plate (20) are sealed in respectively on lower air duct guide wall (5), cooling duct connecting wall (19) and the guiding wall (22), and the another side of induced draft plate (20) extends to exhaust side; Dunnage (21) is installed in cylinder head (18) top, with upper air duct guide wall (4) be adjacent on one side, another side and belt sealing strip (14) are adjacent to.
2. the cooling duct of a kind of motor according to claim 1, it is characterized in that described crankcase cover (24) is provided with the cooling air guide plate (25) integrally molded with crankcase cover, cooling air guide plate (25) is fitted with the extension of upper air duct guide wall (4), lower air duct guide wall (5).
3. the cooling duct of a kind of motor according to claim 1 is characterized in that described cooling duct connecting wall (19) is connected with guiding wall (22).
4. the cooling duct of a kind of motor according to claim 1 is characterized in that described spiral wall (a 15) part is molded together with fan guard (9), and another part is formed on the fixed plate (10).
5. the cooling duct of a kind of motor according to claim 1 and 2 is characterized in that described upper air duct guide wall (4), lower air duct guide wall (5) extend to exhaust side from the engine charge side.
6. the cooling duct of a kind of motor according to claim 1 is characterized in that described belt sealing strip (14) is sealed on the belt band (23) of body, upper air duct guide wall (4), lower air duct guide wall (5), cylinder head connecting wall (19), induced draft plate (20) and the formed junction plane of dunnage (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100237647A CN101275485B (en) | 2008-04-18 | 2008-04-18 | Cooling air duct of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100237647A CN101275485B (en) | 2008-04-18 | 2008-04-18 | Cooling air duct of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101275485A CN101275485A (en) | 2008-10-01 |
| CN101275485B true CN101275485B (en) | 2011-06-08 |
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ID=39995278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100237647A Active CN101275485B (en) | 2008-04-18 | 2008-04-18 | Cooling air duct of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101275485B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008003781U1 (en) * | 2008-03-18 | 2009-08-13 | Dolmar Gmbh | Device for cleaning intake air |
| CN105667813B (en) * | 2013-12-31 | 2018-12-11 | 易瓦特科技股份公司 | Unmanned vehicle engine cooling mechanism |
| CN109944674A (en) * | 2019-03-18 | 2019-06-28 | 重庆龙力动力设备有限公司 | A kind of air-cooled component of universal vertical axis engine |
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2008
- 2008-04-18 CN CN2008100237647A patent/CN101275485B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101275485A (en) | 2008-10-01 |
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Denomination of invention: Cooling air duct of engine Effective date of registration: 20190426 Granted publication date: 20110608 Pledgee: Bank of Communications Ltd Wuxi branch Pledgor: Kaipu Power Co., Ltd.,Wuxi Registration number: 2019320010018 |
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Effective date of registration: 20191011 Granted publication date: 20110608 |
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Date of cancellation: 20201120 Granted publication date: 20110608 |