U.S. patent application number 13/037266 was filed with the patent office on 2012-08-30 for instantaneous neutralization and purification device for smoke and exhaust gas discharged from automobile.
Invention is credited to WEN-LO CHEN.
Application Number | 20120216511 13/037266 |
Document ID | / |
Family ID | 46718059 |
Filed Date | 2012-08-30 |
United States Patent
Application |
20120216511 |
Kind Code |
A1 |
CHEN; WEN-LO |
August 30, 2012 |
INSTANTANEOUS NEUTRALIZATION AND PURIFICATION DEVICE FOR SMOKE AND
EXHAUST GAS DISCHARGED FROM AUTOMOBILE
Abstract
Disclosed is an instantaneous neutralization and purification
device for smoke and exhaust gas discharged from an automobile,
which includes a first purification treatment device connected to
an exhaust pipe, a connection pipe connected to the first
purification treatment device, and a second purification treatment
device connected to the connection pipe. The first purification
treatment device includes a combustion system and a filtration
system. A first pressure sensor detects an exhaust gas pressure
greater than a threshold and signals a fuel tank to supply fuel to
the combustion system for combustion and heating the filtration
system to cause combustion of carbon build-up. A second pressure
sensor detects the exhaust gas pressure becoming lower than a
threshold and signals the fuel tank to stop supply of fuel. The
exhaust gas is then conducted through the connection pipe, where an
alkaline solution is sprayed to neutralize acids of the exhaust
gas.
Inventors: |
CHEN; WEN-LO; (Taipei City,
TW) |
Family ID: |
46718059 |
Appl. No.: |
13/037266 |
Filed: |
February 28, 2011 |
Current U.S.
Class: |
60/286 |
Current CPC
Class: |
F01N 2610/06 20130101;
Y02T 10/47 20130101; F01N 2560/06 20130101; F01N 3/0256 20130101;
F01N 3/0222 20130101; Y02T 10/40 20130101; F01N 2240/02 20130101;
F01N 3/035 20130101; F01N 3/055 20130101; F01N 2610/02 20130101;
F01N 13/009 20140601; F01N 2240/38 20130101; F01N 9/002 20130101;
F01N 13/0097 20140603; F01N 3/022 20130101; F01N 2560/14 20130101;
F01N 2560/08 20130101; F01N 13/0093 20140601 |
Class at
Publication: |
60/286 |
International
Class: |
F01N 3/18 20060101
F01N003/18 |
Claims
1. An instantaneous neutralization and purification device for
smoke and exhaust gas discharged from an automobile, comprising: a
first purification treatment device, which comprises, in sequence
from an inlet end to an outlet end inside an exhaust pipe: a
combustion system, which comprises a barrel, the barrel being
coupled to a flaming device, the flaming device comprising a nozzle
connected to a fuel pipe, an automatic ignition device being
arranged adjacent to the nozzle, the fuel pipe being connected to a
fuel tank to allow a pressure pump to convey fuel through the fuel
pipe into the nozzle for atomization and ejection, the ignition
device being electrically connected to a control system for
generating a spark at a predetermined time to ignite the atomized
fuel sprayed from the nozzle, a first pressure sensor being
arranged upstream the flaming device, and a filtration system,
which comprises noble metal ceramic filter cores to filter the
exhaust gas, a second pressure sensor being arranged at an outlet
end rearward of the filtration system; a connection pipe, which has
an end connected to the outlet end of the first purification
treatment device, the connection pipe comprising an alkaline
solution atomizing spray nozzle, the alkaline solution atomizing
spray nozzle spraying an alkaline solution into the connection pipe
to neutralize acid contained in the exhaust gas; and a second
purification treatment device, which comprises an exhaust gas
transmission unit connected to an opposite end of the connection
pipe and an exhaust gas purification treatment unit connected to
the exhaust gas transmission unit, the exhaust gas transmission
unit comprising a plurality independent transmission tubes showing
predetermined heat dissipation property, each of the transmission
tubes having two ends respectively connected to the connection pipe
and the exhaust gas purification treatment unit, the transmission
tubes being spaced from each other by a predetermined distance, the
exhaust gas being discharged from the connection pipe to pass
through the transmission tubes to effectively reduce temperature
and then supplied to the exhaust gas purification treatment unit
for purification treatment.
2. The instantaneous neutralization and purification device
according to claim 1, wherein the filtration system comprises a
honeycomb type noble metal catalyst ceramic filtration core.
3. The instantaneous neutralization and purification device
according to claim 1, wherein the exhaust gas purification
treatment unit comprises a head portion that defines a chamber and
a passage connected to the head portion, the head portion
comprising a purifying gas generator, which generates and supplies
a gaseous substance into the chamber to mix with the exhaust
gas.
4. The instantaneous neutralization and purification device
according to claim 3, wherein the passage comprises a porous
ceramic catalyst filtration core.
5. The instantaneous neutralization and purification device
according to claim 1, wherein the transmission tubes are of a loop
form.
6. The instantaneous neutralization and purification device
according to claim 1, wherein the transmission tubes are of a
spiral form.
Description
(a) TECHNICAL FIELD OF THE INVENTION
[0001] The present invention generally relates to a device that is
capable of automatically removing carbon build-up formed in an
exhaust gas filtration system that is mounted at a rear end of an
automobile exhaust pipe to maintain smooth emission of exhaust gas
of the automobile engine and to neutralize acidic exhaust gas and
then fast reduce temperature for further cooperation with an
exhaust gas purification unit to realize optimum purification of
the exhaust gas.
(b) DESCRIPTION OF THE PRIOR ART
[0002] Both gasoline engine and diesel engine emit exhaust gas when
it is put in operation. Severe emission of exhaust gas causes
pollution of the atmosphere. Thus, it is a major issue of today to
adopt whatever measures, in both technology and policy, to reduce
the pollution caused by exhaust emission of diesel automobiles, in
order to improve air quality. Although a gasoline engine does not
generate such an obvious pollution as a diesel engine, the gasoline
engine still discharges toxicant substances, including
hydrocarbons, which are also harmful to human body and the
surroundings.
SUMMARY OF THE INVENTION
[0003] A primary objective of the present invention is to overcome
the problem that in a conventional automobile engine that comprises
an exhaust pipe to which a filtration system is mounted, operation
temperature of the engine that is selectively raised to cause
combustion and thus removal of carbon built on a filter core
surface of the filtration system may not be properly increased due
to travel environment and conditions of the automobile and the
difference of individual driving practices, leading to incapability
of combusting and removing the carbon build-up and leaving the
carbon build-up in the filtration system to affect the smooth
emission of exhaust gas and engine performance.
[0004] Another objective of the present invention is to overcome
the problem that a conventional exhaust gas filtration system
coupled to an exhaust system of automobile is not effective in
realizing optimum initial purification of the exhaust gas in a low
temperature environment.
[0005] The foregoing objectives and summary provide only a brief
introduction to the present invention. To fully appreciate these
and other objects of the present invention as well as the invention
itself, all of which will become apparent to those skilled in the
art, the following detailed description of the invention and the
claims should be read in conjunction with the accompanying
drawings. Throughout the specification and drawings identical
reference numerals refer to identical or similar parts.
[0006] Many other advantages and features of the present invention
will become manifest to those versed in the art upon making
reference to the detailed description and the accompanying sheets
of drawings in which a preferred structural embodiment
incorporating the principles of the present invention is shown by
way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 is a schematic view illustrating a preferred
embodiment according to the present invention.
[0008] FIG. 2 is a perspective view showing a first embodiment of a
second purification treatment device according to the present
invention.
[0009] FIG. 3 is a perspective view showing a second embodiment of
the second purification treatment device according to the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] The following descriptions are exemplary embodiments only,
and are not intended to limit the scope, applicability or
configuration of the invention in any way. Rather, the following
description provides a convenient illustration for implementing
exemplary embodiments of the invention. Various changes to the
described embodiments may be made in the function and arrangement
of the elements described without departing from the scope of the
invention as set forth in the appended claims.
[0011] Referring to FIG. 1, the present invention provides an
instantaneous neutralization and purification device for smoke and
exhaust gas discharged from an automobile, which comprises a first
purification treatment device 1, a second purification treatment
device 2, and a connection pipe 3 that is provided with at least
one alkaline solution atomizing spray nozzles 4. The first
purification treatment device 1 comprises, sequentially arranged
from an inlet end 111 to an outlet end 112 of an exhaust pipe 11, a
combustion system 113 and a filtration system 17. The combustion
system 113 comprises a stainless steel barrel 124 arranged therein.
The barrel 124 is coupled to a flaming device 12. The flaming
device 12 comprises a nozzle 121 that is connected to a fuel pipe
122 and an automatic ignition device 13 arranged adjacent to the
nozzle 121. The fuel pipe 122 is connected to a fuel tank 123,
whereby a pressure pump conveys fuel from the fuel pipe 122 to the
nozzle 121 for ejection and atomization. The automatic ignition
device 13 is connected to a direct-current power supply of an
automobile in which the device of the present invention is mounted
and is electrically connected to a control system, so as to
generate spark at a desired time to ignite the atomized fuel
sprayed from the nozzle 121. Arranged upstream the flaming device
12 is a first pressure sensor 15A, which in the present invention
comprises a back pressure detector for pressure detection and is
located at a predetermined position on a side wall of the
combustion system 113 and electrically connected to the control
system. In an embodiment of the present invention, the first
pressure sensor 15A and the fuel tank 123 are electrically
connected to a microcomputer control system 14.
[0012] In a preferred embodiment of the present invention, the
filtration system 17 comprises a noble metal catalyst converter,
which is arranged at a position upstream inside the outlet end 112
of the exhaust pipe 11 and comprises, in sequence, a direct-pass
type noble metal catalyst ceramic filtration core 171 and a
honeycomb type noble metal catalyst ceramic filtration core 172.
The filtration system 17 has a side wall to which a temperature
sensor 16 is mounted at a predetermined location and a second
pressure sensor 15B coupled to the outlet end 112 at a
predetermined location. The temperature sensor 16 and the second
pressure sensor 15B are both electrically connected to the
microcomputer control system 14.
[0013] FIG. 1 also shows, in the present invention, a connection
pipe 3 connected to the outlet end 112 of the first purification
treatment device 1 and the connection pipe 3 comprises an alkaline
solution atomizing spray nozzle 4. Exhaust gas moves through the
first purification treatment device 1 and is thus filtered for the
first-time purification, and then conducted into the connection
pipe 3, where the alkaline solution atomizing spray nozzle 4
arranged in the connection pipe 3 atomizes and sprays, at a
predetermined time, a predetermined amount of an alkaline solution
(such as plant alkaloid solution, chemically-synthesized alkaline
solution, and so on) into the connection pipe 3 to neutralize and
convert acidic substances contained in the exhaust gas into
non-toxicant substance and also carry out temperature reduction and
deodorization for the exhaust gas. The neutralized exhaust gas is
then supplied to the second purification treatment device 2 for
second-time purification treatment to prevent a large amount of
acidic gas from discharging into the atmosphere to cause
pollution.
[0014] Referring to FIGS. 1 and 2, according to the present
invention, a second purification treatment device 2 is connected to
an end of the connection pipe 3. The second purification treatment
device 2 comprises an exhaust gas transmission unit 21 that is
connected to the connection pipe 3 and an exhaust gas purification
treatment unit 23 that is connected to the exhaust gas transmission
unit 21. The exhaust gas transmission unit 21 comprises a plurality
of transmission tubes 211, a first retainer plate 212, and a second
retainer plate 213. The transmission tubes 211 are preferably
arranged in a loop or coil form to increase the overall length and
surface area thereof in order to extend the time for contacting
atmosphere. The transmission tubes 211 are preferably tubes made of
copper based materials to provide good property of heat conduction
and heat dissipation. The first retainer plate 212 and the second
retainer plate 213 are preferably circular plates forming a
plurality of through holes. The first retainer plate 212 is mounted
at an outlet port of the connection pipe 3. Opposite ends of each
of the transmission tubes 211 respectively extend through the
through holes of the first retainer plate 212 and the second
retainer plate 213. The transmission tubes 211 so mounted to the
retainer plates are spaced from each other by a proper distance.
Preferably, an outer surface of each of the transmission tubes 211
is coated with a heat dissipative substance (such as boron nitride)
to improve the performance of heat absorption and heat
dissipation.
[0015] FIG. 2 also shows that the exhaust gas purification
treatment unit 23 comprises a head portion 231 that forms a chamber
2310 and a passage 232 connected to the head portion 231. The head
portion 231 is provided for coupling to the second retainer plate
213. The head portion 231 comprises a purifying gas generator 24,
which generates and supplies a gaseous purifying substance into the
chamber 2310 to mix with the exhaust gas. The passage 232 that is
connected to the head portion 231 contains therein a porous ceramic
catalyst filtration core 25 that functions to filter out tiny
suspension particles.
[0016] FIG. 3 shows a second embodiment of the second purification
treatment device 2, which has a structure similar to that of the
first embodiment shown in FIG. 2. However, in the embodiment shown
in FIG. 3, the exhaust gas transmission unit 21 comprises a
plurality of transmission tubes 211 each of which is of a spiral
form and a predetermined distance is present between adjacent
transmission tubes 211 to serve as a heat dissipation space. This
embodiment provides the same function of purification of exhaust
gas and removal of suspension particles as that of the embodiment
shown in FIG. 1.
[0017] In a regular operation condition of the present invention,
the combustion system 113 of the first purification treatment
device 1 is normally inoperative, so that the exhaust gas
discharged from an automobile is allowed to directly pass through
the combustion system 113 to enter the filtration system 17,
whereby pollutant substances contained in the exhaust gas are
removed by the direct-pass type noble metal catalyst ceramic
filtration core 171 and the honeycomb type noble metal catalyst
ceramic filtration core 172 of the filtration system 17 before the
exhaust gas moves into the connection pipe 3, where alkaline
solution atomizing device 4 timely sprays a proper amount of
atomized alkaline solution (such as plant alkaloid solution,
chemically-synthesized alkaline solution, and so on) into the
connection pipe 3 to neutralize the acidic substances contained in
the exhaust gas and then the exhaust gas is discharged into the
second purification treatment device 2. Under the condition that
the exhaust gas is smoothly discharged from the first purification
treatment device 1 in a substantially unimpeded manner, the first
pressure sensor 15A detects a back pressure of the exhaust gas
within the combustion system 113 that is below a predetermined
threshold, so that the control system does not activate the flaming
device 12. However, when the device is set in operation for quite a
while, the filtration system 17 becomes gradually blocked due to
carbon build-up. Under this condition, the back pressure inside the
combustion system gradually increases and is detected by the second
pressure sensor 15B, which then issues a signal to the
microcomputer control system 14, so that the control system
instructs the pressure pump of the fuel tank 123 to deliver fuel
through the fuel pipe 122 into the nozzle 121 for atomization and
ejection, and the ignition device 13 ignite the atomized fuel to
set a flame for heating. The high temperature is then transmitted
to the filtration system 17 to cause combustion of the carbon
build-up on direct-pass type noble metal catalyst ceramic
filtration core 171 and the honeycomb type noble metal catalyst
ceramic filtration core 172 thereby clearing off the carbon. When
the carbon build-up has been cleared to quite an extent, the
filtration system 17 resumes an unimpeded condition so that the
first pressure sensor 15A detects the back pressure inside the
combustion system 113 dropping to a level below the threshold and
issues a signal to the microcomputer control system 14, whereby the
control system instructs the flaming device 12 to stop operation
and the exhaust gas discharged from the diesel engine is allowed to
directly pass into the filtration system 17 to be filtered thereby
and then discharged. The process is repeatedly performed to ensure
the carbon build-up can be effectively removed at a timely
manner.
[0018] When the exhaust gas passes through the connection pipe 3
and is neutralized by the atomized alkaline solution to then enter
the second purification treatment device 2, the exhaust gas is
conducted through each of the transmission tubes 211 of the exhaust
gas transmission unit 21. Since the transmission tubes 211 are of a
great number and set in the form of loop or coil or spiral that
increases the overall length thereof, the overall surface area is
expanded to allow the surrounding atmosphere to absorb quite a
fraction of the heat carried by the exhaust gas. Air streams caused
by the movement of the automobile then remove the heat so that the
exhaust gas that enters the chamber 2310 of the head portion 231
can be of a temperature reduced to a proper or predetermined level.
Under this condition, the gaseous purifying gas (such as ozone or
urea) sprayed by the purifying gas generator 24 can be mixed with
the exhaust gas inside the chamber 2310 at a low temperature
condition to decompose toxicant substances contained in the exhaust
gas and thus purify the exhaust gas. The purified exhaust gas is
then discharged into the passage 232 to have tiny suspension
particles entraining therewith removed by the porous ceramic
catalyst filtration core 25 and eventually discharged to the
atmosphere.
[0019] It will be understood that each of the elements described
above, or two or more together may also find a useful application
in other types of methods differing from the type described
above.
[0020] While certain novel features of this invention have been
shown and described and are pointed out in the annexed claim, it is
not intended to be limited to the details above, since it will be
understood that various omissions, modifications, substitutions and
changes in the forms and details of the device illustrated and in
its operation can be made by those skilled in the art without
departing in any way from the spirit of the present invention.
* * * * *