U.S. patent application number 12/531488 was filed with the patent office on 2010-04-29 for muffler of a exhaust system.
Invention is credited to Sanguk Kim.
Application Number | 20100101890 12/531488 |
Document ID | / |
Family ID | 39760467 |
Filed Date | 2010-04-29 |
United States Patent
Application |
20100101890 |
Kind Code |
A1 |
Kim; Sanguk |
April 29, 2010 |
MUFFLER OF A EXHAUST SYSTEM
Abstract
The present invention regards to a silencer for automobiles,
architectural and other mechanical facilities, which is composed of
following components the pipe-type body that is installed on the
exhaust system of mechanical structure where its one end forms the
inlet of exhaust gas and the other end of it forms the outlet for
discharge of exhaust gas; the multiple noise absorption guides that
are installed inside the body of the silencer consecutively at
regular intervals in the direction from the inlet to outlet of the
above body. The noise absorption guide has a hollow form, of which
the inlet is situated to the inlet of the body and the outlet is to
the outlet of the body. The circumference of the above outlet is
combined with the inside surface of the body. The surface
connecting the circumferences of above inlet and outlet is tilted
to get farther from the inner surface of the body while it goes
from the outlet to the inlet; and the screw element that was formed
by twisting a plate, where the screw element passes through the
inlet and the outlet of multiple noise absorption guides and is
fixed on the inlet circumference of the above noise absorption
guides inside the body.
Inventors: |
Kim; Sanguk; (Busan,
KR) |
Correspondence
Address: |
CHRISTOPHER PAUL MITCHELL
888 16TH ST., NW, SUITE 800
WASHINGTON
DC
20006
US
|
Family ID: |
39760467 |
Appl. No.: |
12/531488 |
Filed: |
February 22, 2008 |
PCT Filed: |
February 22, 2008 |
PCT NO: |
PCT/KR08/01053 |
371 Date: |
September 15, 2009 |
Current U.S.
Class: |
181/252 |
Current CPC
Class: |
F01N 1/125 20130101 |
Class at
Publication: |
181/252 |
International
Class: |
F01N 1/10 20060101
F01N001/10 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 15, 2007 |
KR |
10-2007-0025339 |
Claims
1. The muffler of a exhaust system composed of following parts: The
pipe-type body that is installed on the exhaust system of
mechanical structure where its one end forms the inlet of exhaust
gas and the other end of it forms the outlet for discharge of
exhaust gas; the multiple noise absorption guides that are
installed inside the body of the silencer consecutively at regular
intervals in the direction from the inlet to the outlet of the
above body. The noise absorption guide has a hollow form, of which
the inlet is situated to the inlet of the body and the outlet is to
the outlet of the body. The circumference of the above outlet is
combined with the inside surface of the body. The surface
connecting the circumferences of above inlet and outlet is tilted
to get farther from the inner surface of the body while it goes
from the outlet to the inlet; the screw element that was formed by
twisting a plate, where the screw element passes through the inlet
and the outlet of multiple noise absorption guides and is fixed on
the inlet circumference of the above noise absorption guides inside
the body.
2. The muffler of a exhaust system according to claim 1 wherein the
both ends of the above body are tapered to form the diminished
pipes and it includes the flanges more that are to insert to the
outer part of the diminished pipes.
Description
TECHNICAL FIELD
[0001] The present invention regards to a silencer for automobiles,
architectural and other mechanical facilities, especially for
automobiles.
BACKGROUND ART
[0002] The silencer is composed of a resonant room and its wall
through which the exhaust gas passes. This is to remove the noise
generated when an exhaust valve opens by offsetting the sound wave
progressing to the right direction with the reflected sound wave
progressing to the reverse direction in the silencer.
[0003] However, some automobile users, who intend to improve the
output and fuel ratio by the smooth exhaust, strongly wish to
replace the muffler with a tuned one where the inside diameter of
exhaust pipe is increased and the elements generating the exhaust
resistance are removed.
[0004] However, as such a tuned muffler is basically a fully opened
pipe except its circumference is wiped by the noise-absorbing
material, it has a disadvantage that the exhaust noise is too
exceedingly strong to use in normal.
[0005] Because of this reason, most automobile drivers avoid using
a tuned muffler and the government prohibits the tuning work of
muffler, unless the exhaust noise falls below a certain level. In
other word, most of existing silencers have the problem that for
smooth exhaust the silence cannot be secured, and for perfect
silence the smooth exhaust is hardly secured. Furthermore, in order
to attain the smooth exhaust and the distinguished silence at the
same time, the volume of conventional silencer becomes very large
and demands large space and high cost. In particular, large sized
cargo automobiles and turbo charger vehicles demand the maximized
exhaust, but, in order to satisfy this requirement, the silencer
must be very large; otherwise, the effect of silence cannot be
expected. As an example, large sized trucks are equipped with a
silencer of huge size almost equivalent to the oil tank. It
requires a high consumption in space and in cost.
DISCLOSURE OF INVENTION
Technical Issue
[0006] This invention is suggested to solve the problem of existing
technologies. It provides the silencer with a natural and smooth
exhaustion as well as an excellent removal of exhaust noise. Thus,
it can fully satisfy the exhausting amount required by the engine
or other industrial facilities even with a small volume, and can
save the space and the cost a lot. It can give the vehicle
designers a freedom to choose the space for the silencer. Most of
all, the main purpose of this silencer is to facilitate the
exhaustion enough to enhance the output of engine and to save the
fuel considerably.
Technical Solution
[0007] To achieve the above purpose, the silencer of this design is
installed on the exhaust system of the mechanical structure. On its
one end the inlet for the exhaust gas is formed, ant on the other
end the pipe-type body is formed for exhaust outlet. In the
direction from the inlet to outlet, multiple noise absorption
guides are situated inside the body of the silencer consecutively
at regular intervals. The noise absorption guide has a hollow form,
of which the inlet is situated to the inlet of the body and the
outlet is to the outlet of the body. The circumference of the above
outlet is combined with the inside surface of the body. The surface
connecting the circumferences of above inlet and outlet is tilted
to get farther from the inner surface of the body while it goes
from the outlet to the inlet. In addition to the noise absorption
guide unit, there is a screw element that was formed by twisting a
plate. This screw element passes through the inlet and the outlet
of noise absorption guide unit and is fixed on the inlet
circumference of the above noise absorption guides.
[0008] The both ends of the above body are tapered to form the
diminished pipes. It is desirable to include the flanges more that
are to insert to the outer part of the diminished pipes.
[0009] Hereafter, a concrete working example of this design will be
explained in detail with the attached drawings:
[0010] FIG. 1 is a schematic view showing an exhaust system for
automobile where a silencer of the present invention is
installed.
[0011] A catalyst converter (300) is connected by an exhaust
manifold (100) of engine and engine pipe (200), catalyst converter
(300) and silencer (500)(muffler) are connected by an intermediate
pipe (400), and a silencer (500) and resonator (700) are connected
by axel pipe (600).
[0012] FIG. 2 through 4 show a silencer of the present
invention.
[0013] The silencer is composed of a body (10), screw element (30),
noise absorption guide (20) and flange (14).
[0014] The body (10) is a pipe of which both ends forms an inlet
(11) and an exhaust outlet (12), respectively. Both ends of the
body have a smaller diameter than other parts, and on the outer
side is combined the flange (14) for the connection to other
parts.
[0015] The screw member (30) is, as illustrated in FIG. 2, an
element which has a twisted shape by twisting a long flat plate
while fixing its both ends. Such a screw element (30) is installed
with in a body (10) along with a body (10).
[0016] The noise absorption guide (20) is a nozzle-type element. As
shown in FIG. 2, several noise absorption guides (20) are installed
inside the body (10) consecutively at regular intervals. As shown
in FIG. 3, the noise absorption guide (20) is combined on the
inside wall of body (10) and the outer rim of screw element (30)
respectively, residing between the inside wall of body (10) and the
outer rim of screw element (30). The surface connecting the inlet
of noise absorption guide part (20) where the exhaust gas is coming
into and its outlet is sloped to be closer to the wall of body (10)
while it goes from the inlet (21) to the outlet (22) of the noise
absorption guide (20).
[0017] The functions of the silencer that is composed of above
components are as follows:
[0018] If the exhaust gas comes in through the inlet (11) of the
body (10), the screw element (30) makes the exhaust gas a strong
whirl to pass through the body fast and smoothly. With this, a
large amount of mixed air can quickly come into the engine to
enhance its output. Moreover, it accomplishes nearly the complete
combustion and improves the mileage. Meanwhile, the sound wave of
exhaust noise comes into the body (10) and progresses straight.
When it passes through the screw element (30), the sound is blocked
and refracted by the twisted surface of the screw element (30) and
the refracted sound wave is reflected on the tapered surface and
returned to the source direction. The returned wave makes the
offsetting interference with the incoming wave to be destroyed or
naturally disappear in the space between the wall of body (10) and
the tapered surface of noise absorption guide (20). In this way,
the noise is removed.
[0019] In above explanation, this invention was described only with
an example. It is clear that, on the basis of above example,
diverse revisions and adjustments can be made within the range of
this invention by the practical user. Of course, this kind of
revision or adjustment also falls within the range of this patent
claim.
ADVANTAGEOUS EFFECT
[0020] As described above, this invention has many advantages.
Through the twisted screw element installed in it, it induces the
natural exhaustion of the gas. Moreover, with the screw element and
the washer-type noise absorption guides that are protruded
slantingly around the screw element, it removes the noises. Thus,
it has nearly no exhaust pressure enough to enhance the mileage and
to reduce the loss of output, minimizing the noises. It size is a
little bit larger than the conventional muffler. So, it can be
freely installed on any place of the vehicle when the vehicle is
designed. With a small size, it is also light weighted. Thus, it
can reduce the total weight of the vehicle, as well as many costs
related with it.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 is a diagram showing a conventional exhaust system
for automobile.
[0022] FIG. 2 is a divided perspective view of a silencer of the
present invention.
[0023] FIG. 3 is a side sectional view showing a silencer of the
present invention.
[0024] FIG. 4 is a front section view showing a silencer of the
present invention.
DESCRIPTION OF SYMBOLS FOR MAIN PARTS OF DRAWING
TABLE-US-00001 [0025] 10: body 13: tapered tube 14: flange 20:
noise absorption guide unit *30: screw element
INDUSTRIAL APPLICABILITY
[0026] This invention, the silencer of the exhaust system, can be
used in the industries such as automobile, ship, building
construction, and other mechanical facilities.
* * * * *