To provide a muffler device capable of improving the discharge of exhaust gas, while discharging the exhaust gas in any desired direction. The muffler device is connected to a rear end portion of an exhaust pipe extending from an internal combustion engine of a vehicle. An exhaust outlet opening is
To provide a muffler device capable of improving the discharge of exhaust gas, while discharging the exhaust gas in any desired direction. The muffler device is connected to a rear end portion of an exhaust pipe extending from an internal combustion engine of a vehicle. An exhaust outlet opening is provided that opens outwardly and laterally of the vehicle and is disposed at a rear portion of a muffler main body. The muffler main body is provided with a muffler side cover and an end cap as muffler covers. The muffler side cover includes a slit. The slit serves as an air intake guide shaped portion for guiding ambient air so that the ambient air crosses the exhaust outlet.
대표청구항▼
What is claimed is: 1. A muffler device connected to a rear end portion of an exhaust pipe that extends from an internal combustion engine of a vehicle, comprising: a muffler main body; an exhaust outlet disposed at a rear portion of the muffler main body, opening outwardly and laterally of the veh
What is claimed is: 1. A muffler device connected to a rear end portion of an exhaust pipe that extends from an internal combustion engine of a vehicle, comprising: a muffler main body; an exhaust outlet disposed at a rear portion of the muffler main body, opening outwardly and laterally of the vehicle; and a muffler cover mounted on an outer tube of the muffler main body, the muffler cover serving as a muffler side cover, wherein the muffler side cover includes an formed by a changing part of the muffler side cover, an outside air introduction portion being formed along a rear section of the muffler side cover that overlaps the muffler main body and extending radially inward part way toward the muffler main body, and wherein a rear end of the outside air introduction portion includes an air intake guide shaped portion for guiding ambient air to the exhaust outlet, wherein the air intake guide shaped portion has a length extending in a fore-aft direction, a width that increases continuously in a direction from a front end to a rear end thereof, and a depth that increases in a radial direction toward the rear end relative to the front end thereof. 2. The muffler device according to claim 1, wherein the muffler side cover is fitted to an outer periphery of the muffler main body, the muffler side cover including a slit provided as the air intake guide shaped portion. 3. The muffler device according to claim 1, wherein the muffler cover includes an end cap for covering an area surrounding the exhaust outlet of the muffler main body, the end cap including a recessed portion that is provided directly rearward of the air intake guide shaped portion, and the recessed portion including an exposed hole provided for the exhaust outlet. 4. The muffler device according to claim 2, wherein the muffler cover includes an end cap for covering an area surrounding the exhaust outlet of the muffler main body, the end cap including a recessed portion that is provided rearward of the air intake guide shaped portion, and the recessed portion including an exposed hole provided for the exhaust outlet. 5. The muffler device according to claim 1, wherein the exhaust outlet is located between an outer side portion and a lower side portion of the muffler main body. 6. The muffler device according to claim 2, wherein the exhaust outlet is located between an outer side portion and a lower side portion of the muffler main body. 7. The muffler device according to claim 3, wherein the exhaust outlet is located between an outer side portion and a lower side portion of the muffler main body. 8. The muffler device according to claim 1, wherein at least one connection portion for connecting the muffler main body and the muffler side cover is disposed at an area near the air intake guide shaped portion. 9. The muffler device according to claim 2, wherein at least one connection portion for connecting the muffler main body and the muffler side cover is disposed at an area near the air intake guide shaped portion. 10. The muffler device according to claim 3, wherein at least one connection portion for connecting the muffler main body and the muffler side cover is disposed at an area near the air intake guide shaped portion. 11. The muffler device according to claim 4, wherein at least one connection portion for connecting the muffler main body and the muffler side cover is disposed at an area near the air intake guide shaped portion. 12. A muffler device adapted to be connected to a rear end portion of an exhaust pipe, comprising: a muffler main body; an exhaust outlet disposed at a rear portion of the muffler main body, opening outwardly and laterally therefrom; and a muffler cover provided for the muffler main body, the muffler cover serving as a muffler side cover wherein the muffler side cover includes an outside air introduction portion with an air intake guide shaped portion for guiding ambient air to the exhaust outlet, the outside air introduction portion having a concave guide wall with a length extending in a fore-aft direction, and a width that increases continuously in a direction from a front end to a rear end thereof. 13. The muffler device according to claim 12, wherein the muffler side cover is fitted to an outer periphery of the muffler main body, the muffler side cover including a slit serving as the air intake guide shaped portion at the rear end of the concave guide wall of the outside air introduction portion. 14. The muffler device according to claim 12, wherein the muffler cover includes an end cap for covering an area surrounding the exhaust outlet of the muffler main body, the end cap including a recessed portion provided directly rearward of the air intake guide shaped portion, and the recessed portion including an exposed hole provided for the exhaust outlet. 15. The muffler device according to claim 13, wherein the muffler cover includes an end cap for covering an area surrounding the exhaust outlet of the muffler main body, the end cap including a recessed portion provided directly rearward of the air intake guide shaped portion, and the recessed portion including an exposed hole provided for the exhaust outlet. 16. The muffler device according to claim 12, wherein the exhaust outlet is located between an outer side portion and a lower side portion of the muffler main body. 17. The muffler device according to claim 13, wherein the exhaust outlet is located between an outer side portion and a lower side portion of the muffler main body. 18. The muffler device according to claim 14, wherein the exhaust outlet is located between an outer side portion and a lower side portion of the muffler main body. 19. The muffler device according to claim 12, wherein at least one connection portion for connecting the muffler main body and the muffler side cover is disposed at an area near the air intake guide shaped portion. 20. The muffler device according to claim 12, wherein the air intake guide shaped portion includes a riser wall at the rear end of the concave guide wall, the concave guide wall increasing in depth in a radial direction toward the rear end relative to the front end thereof.
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이 특허에 인용된 특허 (8)
Minami Hidemi (Saitama JPX), Cooling air intake structure for small-sized vehicles.
Kicinski Kenneth J. (Stoughton WI) Printiss ; Sr. Frederick H. (Stoughton WI) Jasensky Richard J. (Stoughton WI), Exhaust muffler with protective shield.
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