Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2000-09-07
2002-02-05
Dang, Khanh (Department: 2837)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S228000, C181S256000, C181S277000, C181S279000
Reexamination Certificate
active
06343673
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a turbine exhaust structure for an exhaust tail pipe or a muffler of a vehicle such as a car, a motorcycle or the like.
2. Description of the Related Art
A conventional exhaust tail pipe
10
for a vehicle such as a car, a motorcycle or the like in accordance with the prior art shown in
FIG. 1
comprises a filter layer
11
, and a noise elimination cotton
12
. The exhaust gas passing through the filter layer
11
can be filtered and then drained outward. However, most of the exhaust gas is directly drained from the exhaust tail pipe
10
without any pressure back effect whereby the engine has a lower torque at a low rotational speed so that when the car is moved on a slope or is moved at a low rotational speed, the power is not enough due to the low torque of the engine so that the car has to increase its power to climb up the slope fluently, thereby consuming fuel.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a turbine exhaust structure for a vehicle, the vehicle comprising an exhaust tail pipe having an inner wall defining a screw hole, and the turbine exhaust structure comprising: a turbine exhaust device secured in the inner wall of the exhaust tail pipe, and a bolt co-operating with a nut for securing the turbine exhaust device in the inner wall of the exhaust tail pipe through the screw hole, wherein,
the turbine exhaust device includes a housing secured in the inner wall of the exhaust tail pipe, a wheel disk secured in the housing, a plurality of catch pieces mounted in the wheel disk and defining a plurality of spaces therebetween, an axle base secured in a central portion of the wheel disk, an axle rod rotatably mounted in the axle base of the wheel disk and having a first end provided with a first vane wheel and a second end provided with a second vane wheel, and two bearings mounted between the axle base and the axle rod.
In accordance with another aspect of the present invention, the vehicle comprises a muffler having an inner tube defining a screw hole, and the turbine exhaust structure comprises: a turbine exhaust device secured in the inner tube of the muffler, and a bolt co-operating with a nut for securing the turbine exhaust device in the inner tube of the muffler through the screw hole.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 3121469 (1964-02-01), Schelf
patent: 4327815 (1982-05-01), Hattori
patent: 5884666 (1999-03-01), Johnson
Dang Khanh
Liang Fei Industry Co. Ltd.
Rosenberg , Klein & Lee
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