التفاصيل البيبلوغرافية
| العنوان: |
Engine |
| Document Number: |
20080105220 |
| تاريخ النشر: |
May 8, 2008 |
| Appl. No: |
11/572341 |
| Application Filed: |
May 16, 2005 |
| مستخلص: |
The purpose of the present invention is to improve cooling efficiency of a cylinder head of an air-cooled engine. With regard to the construction that a cooling fan is provided at one of ends of a crankshaft, and cooling air from the cooling fan is guided to a cylinder head 4 so as to cool the cylinder head 4, an intake manifold 8 is arranged above the cooling fan, a duct 51 is provided at the lateral center of the intake manifold 8 so as to suck air from an air cleaner, cooling air is sent from both sides of the duct 51 to an intake valve, an exhaust valve and an injection nozzle arranged in the cylinder head 4, and a shielding plate 55 is provided at one of lateral sides of the duct 51. |
| Inventors: |
Shiota, Katsuyuki (Osaka, JP); Furuta, Tomohiko (Osaka, JP); Sagara, Masashi (Osaka, JP); Kanazu, Yasuhiro (Osaka, JP); Yoshii, Masami (Osaka, JP) |
| Claim: |
1. An engine wherein a cooling fan is provided at one of ends of a crankshaft, and cooling air from the cooling fan is guided to a cylinder or a cylinder head so as to cool the cylinder or the cylinder head, characterized in that: an intake manifold is arranged above the cooling fan, a duct is provided at the lateral center of the intake manifold so as to suck air from an air cleaner, cooling air is sent from both sides of the duct to an intake valve, an exhaust valve and an injection nozzle arranged in the cylinder head, and a shielding plate is provided at one of lateral sides of the duct. |
| Claim: |
2. The engine as set forth in claim 1, wherein the shielding plate is constructed integrally with the intake manifold. |
| Claim: |
3. The engine as set forth in claim 1, wherein the shielding plate is constructed integrally with the intake manifold and the air cleaner. |
| Claim: |
4. The engine as set forth in claim 1, wherein a gap is provided between the tip of the shielding plate and the cylinder head. |
| Claim: |
5. The engine as set forth in claim 1, wherein the shielding plate is arranged substantially perpendicularly to a tangential line of rotation locus of the cooling fan. |
| Claim: |
6. The engine as set forth in claim 1, wherein the shielding plate is arranged oppositely to a muffler arranged at a side of the cylinder head. |
| Claim: |
7. An engine wherein a cooling fan is provided at one of ends of a crankshaft, and cooling air from the cooling fan is guided to a cylinder or a cylinder head so as to cool the cylinder or the cylinder head, characterized in that: a cover guiding the cooling air from the cooling fan is provided at an outside of the cylinder oppositely to the cooling fan, and an air guide plate is arranged on a reverse side of a cover facing the cylinder. |
| Claim: |
8. The engine as set forth in claim 7, wherein two air guide plates are arranged so that distance between the air guide plates is widened outward. |
| Claim: |
9. The engine as set forth in claim 8, wherein one of the two air guide plates is extended higher than the other air guide plate. |
| Claim: |
10. The engine as set forth in claim 8, wherein a horizontal shielding plate is arranged integrally with the cover at upper position of the cylinder above the air guide plates. |
| Claim: |
11. The engine as set forth in claim 7, wherein both sides of the cover are fore-and-off bent following shape of a fin provided on an outer perimeter of the cylinder. |
| Claim: |
12. The engine as set forth in claim 7, wherein an upper portion of the cover is extended upward so as to cover an exhaust manifold, and an upper end of the cover is connected to an upper cover. |
| Current U.S. Class: |
123/4/165 |
| Current International Class: |
01 |
| رقم الانضمام: |
edspap.20080105220 |
| قاعدة البيانات: |
USPTO Patent Applications |