CN201180587Y

CN201180587Y - Active air cooling type motorcycle engine cylinder end

Info

Publication number: CN201180587Y
Application number: CNU2007201885633U
Authority: CN
Inventors: 胡大杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-19
Filing date: 2007-12-19
Publication date: 2009-01-14
Anticipated expiration: 2017-12-19

Abstract

An active air cooled cylinder head of a motorcycle engine comprises a cylinder head shell body, and is characterized in that at least an air passage is arranged in the cylinder head shell body; and an air inlet and an air outlet which communicate with the air passage are formed on the cylinder head shell body. The cylinder head has the advantages of simple structure, low failure rate and long service life; the cylinder head is cooled from the inner part of the cylinder head; therefore, the radiating effect of the cylinder head is improved, the temperature of the cylinder head is low, and the operation is extremely reliable.

Description

Active air-cooled type motorcycle engine cylinder head

Affiliated technical field

The utility model relates to a kind of motorcycle engine cylinder head, particularly a kind of motorcycle engine cylinder head that utilizes air to cool off.

Background technique

Operated by rotary motion has radiating fin on the existing motorcycle engine cylinder head, purpose is the heat radiation that strengthens cylinder head by air-cooled, to reduce the temperature of cylinder head, and an air Surface runoff at motor, the heat of the Engine Surface that only leaves, in-engine heat can not in time pass, therefore, temperature in engine cylinder head and the cylinder head is still higher, and cooling effect is extremely limited.Simultaneously, utilize this form of radiating fin heat radiation, be to rely on motorcycle in the process of moving, utilize the wind that flows that the heat on the engine cylinder head is taken away, reach cooling purpose, and when motorcycle stopped to travel, the cooling effect of radiating fin was not good, and radiating fin just plays the purpose of a passive heat radiation.Certainly, what also have installs cooling water channel at above-mentioned cylinder head sidewall, makes cylinder head in by air cooling, also can be by water cooling.But because the length of cooling water channel is very short, cooling water can only be taken away the seldom heat of a part of cylinder head, and is still very poor to the cooling effect of cylinder head.

Summary of the invention

The purpose of this utility model just provide a kind of simple in structure, rate of fault is low and the active air-cooled type motorcycle engine cylinder head of long service life, it cools off cylinder head from cylinder head inside, has improved the radiating effect of cylinder head.

The purpose of this utility model is to realize that by such technological scheme it includes the cylinder head housing, it is characterized in that: be provided with at least one air channel in the cylinder head housing, the cylinder head housing is provided with air intlet and the air outlet slit that communicates with air channel.

The utility model is work like this: air outlet slit is communicated with the engine air filter suction port, and the air-strainer air outlet is communicated with Carburetor.Behind engine start, piston reciprocating type motion in the cylinder, make and form negative pressure in the cylinder, cool exterior air is drawn in the air channel under atmospheric effect, enter in the Carburetor through air outlet slit, pipe, air-strainer, the air that enters in the Carburetor fully with after the gasoline of atomizing mixes is fed in the firing chamber of cylinder again.So constantly circulation makes the heat of cylinder head along with constantly entering of cool air heat exchange take place constantly, has reached the purpose that reduces the temperature of cylinder head.Because ambient air is that initiatively to be pumped into engine combustion by the negative pressure in the cylinder indoor, make air stream in cylinder head with cylinder head in heat carry out heat exchange, so so long as motor is not out of service, cool ambient air can both initiatively be cooled off cylinder head from cylinder head inside.Simultaneously, carry out the hot air that forms after the heat exchange, constantly be drawn in the Carburetor by air-strainer, hot air is with after petrol molecule mixes, make that petrol molecule is as easy as rolling off a log to spread, improve the atomizing ratio of gasoline, increased the gasoline and Air mixing ratio of atomizing, significantly improved the efficient of burning.

Owing to adopted technique scheme, the utlity model has simple in structure, rate of fault is low and the advantage of long service life, it cools off cylinder head from cylinder head inside, has improved the radiating effect of cylinder head, makes the temperature of cylinder head low, it is very reliable to work.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is first a kind of embodiment's of the present utility model structural representation;

Fig. 2 is the plan view of cylinder head housing among Fig. 1;

Fig. 3 is the first kind of partial sectional view of A-A among Fig. 2;

Fig. 4 is that B among Fig. 3 is to view;

Fig. 5 is the second kind of partial sectional view of A-A among Fig. 2;

Fig. 6 is the third partial sectional view of A-A among Fig. 2;

Fig. 7 is that the C of Fig. 6 is to view;

Fig. 8 is the 4th kind of partial sectional view of A-A among Fig. 2;

Fig. 9 is that the C of Fig. 8 is to view;

Figure 10 is second a kind of embodiment's of the present utility model structural representation;

Figure 11 is a cylinder head housing partial sectional view among Figure 10;

Figure 12 is the third an embodiment's of the present utility model structural representation;

First kind of partial sectional view that Figure 13 looks up for cylinder head housing among Figure 12;

Second kind of partial sectional view that Figure 14 looks up for cylinder head capsule among Figure 12.

Among the figure: 1. cylinder head housing; 2. air channel; 3. air intlet; 4. air outlet slit; 5. horizontal baffle; 6. vertical clapboard; 7. radiating fin; 8. circulating water cavity; 9. fan; 10. air-strainer; 11. suction port; 12. Carburetor; 13. air channel; 14. air channel; 15. pipe.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Fig. 1～5,10, the utility model includes cylinder head housing 1, it is characterized in that: be provided with at least one air channel 2 in the cylinder head housing 1, air channel 2 is provided with air intlet 3 and the air outlet slit 4 that communicates with air channel 2.

The utility model is work like this: air outlet slit 4 is communicated with engine air filter 10 suction ports 11, and air-strainer 10 air outlets are communicated with Carburetor 12.Behind engine start, piston reciprocating type motion in the cylinder, make and form negative pressure in the cylinder, cool exterior air is drawn in the air channel under atmospheric effect, enter in the Carburetor 12 through air outlet slit 4, pipe 15, air-strainer 10, the air that enters into Carburetor interior 12 fully with after the gasoline of atomizing mixes is fed in the firing chamber of cylinder again.So constantly circulation makes the heat of cylinder head along with constantly entering of cool air heat exchange take place constantly, has reached the purpose that reduces the temperature of cylinder head.Because ambient air is that initiatively to be pumped into engine combustion by the negative pressure in the cylinder indoor, make air stream in cylinder head with cylinder head in heat carry out heat exchange, so so long as motor is not out of service, cool ambient air can both initiatively be cooled off cylinder head from cylinder head inside.Simultaneously, carry out the hot air that forms after the heat exchange, constantly be drawn in the Carburetor 12 by air-strainer 11, hot air is with after petrol molecule mixes, and makes that petrol molecule is as easy as rolling off a log to spread, and increased the atomizing of mixed gas, improved the efficient of burning.

Shown in Figure 11,12,13, air channel 2 has only one, and the air intlet 3 and the air outlet slit 4 of air channel 2 all are positioned on the sidewall of cylinder head housing 1.

Shown in Fig. 3,5,6,7, air channel 2 has two, and each self-forming is air channel 2 independently, and the air intlet 3 and the air outlet slit 4 of each air channel 2 all are positioned on the sidewall of cylinder head housing 1.Certainly, air channel 2 also can be such setting: shown in Fig. 8,9, air channel 2 has two, two air channels are communicated with each other, air intlet 3 and air outlet slit 4 are one and all be positioned on the sidewall of cylinder head housing 1, air intlet 3 is communicated with an air channel 2, and air outlet slit 4 is communicated with another air channel 2.

Certainly, air intlet 3 and air outlet slit 4 can be a plurality of, and a plurality of air outlet slits 4 compile the back by pipe and are communicated with the suction port of air-strainer.

Shown in Fig. 6,7, in air channel 2, be provided with a plurality of horizontal baffles 5 and vertical clapboard 6, a plurality of horizontal baffles 5 and vertical clapboard 6 are separated into a plurality of less air channels 13 with air channel 2 inwalls with air channel 2, doing the heat that makes on the cylinder head like this is delivered on horizontal baffle 5 and the vertical clapboard 6 timely, increased the area of contact of cool air and horizontal baffle 5 and vertical clapboard 6, make the heat of its cylinder head more abundant with the heat exchange that cool air carries out, make the cooling effect of cylinder head better by horizontal baffle 5 and vertical clapboard 6.

Shown in Fig. 8,9, certainly, can also in air channel 2, be filled with a plurality of radiating fin 7, a plurality of radiating fin 7 form a plurality of tiny air channels 14 in air channel 2.Do the heat that makes on the cylinder head like this and be delivered to timely on the radiating fin 7, increased the area of contact of cool air and radiating fin 7, make the heat of its cylinder head more abundant, make the cooling effect of cylinder head better by the heat exchange that radiating fin 7 and cool air carry out.

Under the situation that guarantees the cylinder head sufficient intensity, horizontal baffle 5 and vertical clapboard 6 or radiating fin 7 are arranged in the air channel 2 as much as possible.

As shown in Figure 6, the air channel 2 in the cylinder head housing 1 is yi word pattern, and as shown in figure 11, the air channel 2 in the cylinder head housing 1 is the L type, and as shown in Figure 8, the air channel 2 in the cylinder head housing 1 is the U type.In a word, the shape of air channel 2 can be according to actual needs, and arbitrarily set.

Shown in Fig. 5,7,9,13, in order to make the cylinder head cooling effect better, cylinder head housing 1 is provided with circulating water cavity 8, and circulating water cavity 8 is linked to be a cooling water peripheral passage with pump, water tank.

In order to strengthen cooling effect, the heat that more cool air and cylinder head 1 are produced carries out heat exchange, and air channel 2 is provided with fan 9.As shown in Figure 3, fan 9 is positioned on the cylinder head housing 1, and corresponding with the air intlet 3 of air channel 2.As shown in figure 11, fan 9 is positioned on the cylinder head housing 1, and corresponding with the air outlet slit 4 of air channel 2.

Claims

1. air-cooled type motorcycle engine cylinder head initiatively, include cylinder head housing (1), it is characterized in that: be provided with at least one air channel (2) in the cylinder head housing (1), cylinder head housing (1) is provided with air intlet (3) and the air outlet slit (4) that communicates with air channel (2).

2. active air-cooled type motorcycle engine cylinder head as claimed in claim 1, it is characterized in that: air channel (2) has only one, and the air intlet (3) and the air outlet slit (4) of air channel (2) all are positioned on the sidewall of cylinder head housing 1.

3. active air-cooled type motorcycle engine cylinder head as claimed in claim 1, it is characterized in that: air channel (2) has two, each self-forming is air channel (2) independently, and the air intlet (3) and the air outlet slit (4) of each air channel (2) all are positioned on the sidewall of cylinder head housing (1).

4. active air-cooled type motorcycle engine cylinder head as claimed in claim 1, it is characterized in that: air channel (2) has two, two air channels are communicated with each other, air intlet (3) and air outlet slit (4) are one and all be positioned on the sidewall of cylinder head housing (1), air intlet (3) is communicated with an air channel (2), and air outlet slit (4) is communicated with another air channel (2).

5. as claim 1,2,3 or 4 described active air-cooled type motorcycle engine cylinder heads, it is characterized in that: be provided with a plurality of horizontal baffles (5) and vertical clapboard (6) in air channel (2), a plurality of horizontal baffles (5) and vertical clapboard (6) are separated into a plurality of less air channels (13) with air channel (2) inwall with air channel (2).

6. as claim 1,2,3 or 4 described active air-cooled type motorcycle engine cylinder heads, it is characterized in that: be filled with a plurality of radiating fin (7) in the air channel (2), a plurality of radiating fin (7) form a plurality of tiny air channels (14) in air channel (2).

7. as claim 1,2,3 or 4 described active air-cooled type motorcycle engine cylinder heads, it is characterized in that: the air channel (2) in the cylinder head housing (1) is yi word pattern, L type or U type.

8. as claim 1,2,3 or 4 described active air-cooled type motorcycle engine cylinder heads, it is characterized in that: cylinder head housing (1) is provided with circulating water cavity (8), and circulating water cavity (8) is linked to be a cooling water peripheral passage with pump, water tank.

9. as claim 1,2,3 or 4 described active air-cooled type motorcycle engine cylinder heads, it is characterized in that: air channel (2) is provided with fan (9).

10. active air-cooled type motorcycle engine cylinder head as claimed in claim 9, it is characterized in that: fan (9) is positioned on the cylinder head housing (1), and corresponding with the air intlet (3) or the air outlet slit (4) of air channel (2).