U.S. patent application number 13/682081 was filed with the patent office on 2013-05-30 for grease filter.
This patent application is currently assigned to SAMSUNG ELECTRONICS CO., LTD.. The applicant listed for this patent is SAMSUNG ELECTRONICS CO., LTD.. Invention is credited to Hyun Ku Jeong, Jin Ho Lee, Kyu Suk LEE, Kyu Ho Shin.
Application Number | 20130133639 13/682081 |
Document ID | / |
Family ID | 47257572 |
Filed Date | 2013-05-30 |
United States Patent
Application |
20130133639 |
Kind Code |
A1 |
LEE; Kyu Suk ; et
al. |
May 30, 2013 |
GREASE FILTER
Abstract
A grease filter capable of reducing a pressure loss generated
while air passes through the grease filter, and cooking apparatus
are provided. The grease filter includes an inflow portion
configured for oil particles to be introduced therethrough, and a
channel provided to discharge air current and oil particles, which
are introduced through the inflow portion, to an outside, wherein
the channel includes an upper channel disposed in parallel while
spaced apart in a predetermined distance to form the inflow
portion, and a lower channel comprising a direction changing
portion provided to change a direction of the air current and the
oil particles introduced through the inflow portion, and a guide
portion having a predetermined angle to guide the oil particles and
the air current having been changed in direction by the direction
changing portion.
Inventors: |
LEE; Kyu Suk; (Suwon,
KR) ; Jeong; Hyun Ku; (Yongin, KR) ; Shin; Kyu
Ho; (Seoul, KR) ; Lee; Jin Ho; (Suwon,
KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SAMSUNG ELECTRONICS CO., LTD.; |
Suwon |
|
KR |
|
|
Assignee: |
SAMSUNG ELECTRONICS CO.,
LTD.
Suwon
KR
|
Family ID: |
47257572 |
Appl. No.: |
13/682081 |
Filed: |
November 20, 2012 |
Current U.S.
Class: |
126/299D ;
55/418; 55/462 |
Current CPC
Class: |
B01D 45/06 20130101;
F24C 15/2035 20130101; B01D 45/08 20130101 |
Class at
Publication: |
126/299.D ;
55/462; 55/418 |
International
Class: |
F24C 15/20 20060101
F24C015/20 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 25, 2011 |
KR |
10-2011-0123954 |
Claims
1. A grease filter, comprising: an inflow portion configured for
oil particles to be introduced therethrough; and a channel provided
to discharge air and oil particles, which are introduced through
the inflow portion, to an outside, and wherein the channel
comprises: an upper channel disposed in parallel, while spaced
apart a predetermined distance, to form the inflow portion; and a
lower channel comprising a direction changing portion provided to
change a direction of the air current and the oil particles
introduced through the inflow portion, and a guide portion having a
predetermined angle to guide the oil particles and the air current,
of which the direction is changed by the direction changing
portion.
2. The grease filter of claim 1, wherein the guide portion is
formed in an obtuse angle with respect to the direction changing
portion.
3. The grease filter of claim 1, wherein the upper channel
comprises: an inflow guide formed in a predetermined angle to form
the inflow portion, and a multiple-surface portion extending from
the inflow guide to maximize a contact surface of the oil
particles.
4. The grease filter of claim 3, wherein the multiple-surface
portion is provided in plural.
5. The grease filter of claim 3, wherein the multiple-surface
portion comprises an inner angle formed by having each surface of
the multiple-surface portion meet one another, and the inner angle
is formed to be equal to or greater than 90 degrees
6. The grease filter of claim 3, wherein the multiple-surface
portion is formed in a way to surround an outer side of the guide
portion of the lower channel.
7. The grease filter of claim 3, wherein the channel comprises a
discharging portion configured to discharge the oil particles and
the air current to an outside, and the discharging portion is
formed between the guide portion of the lower channel and at least
one surface of the multiple-surface portion of the upper
channel.
8. The grease filter of claim 7, wherein the guide portion and the
at least one surface of the multiple-surface portion forming the
discharging portion are disposed in parallel to each other.
9. The grease filter of claim 7, wherein a width of the guide
portion and a width of the at least one surface of the
multiple-surface portion forming the discharging portion are
gradually narrowed toward the outside.
10. The grease filter of claim 3, wherein an end portion of the
multiple-surface portion is diverged to be disposed opposite each
other.
11. A cooking apparatus, comprising: a heating apparatus; a body
provided with the heating apparatus at an upper side thereof; a
suction portion provided to intake oil particles and air, which are
generated through the cooking portion, from a side of the body; and
a grease filter configured to capture oil particles that are taken
in through the suction portion, wherein the grease filter
comprises: an inflow portion configured for oil particles and air
current to be introduced therethrough, and a panel provided for the
oil particles and the air current that are introduced through the
inflow portion to be discharged to an outside, and wherein the
panel, comprises: an upper channel provided in parallel while being
spaced apart in a predetermined distance to form the inflow
portion, and a lower channel comprising a direction changing
portion provided to change a direction of the oil particles and the
air current that are introduced through the inflow portion, and a
guide portion having a predetermined angle to guide the oil
particles and the air current, of which the direction is changed by
the direction changing portion.
12. The cooking apparatus of claim 11, wherein the suction portion
is configured to extend formed from the one side of the body
upward, and comprises a plurality of suction holes formed to intake
the oil particles and the air current, which are generated from the
heating apparatus, sideways.
13. The cooking apparatus of claim 11, wherein the guide portion is
formed in an obtuse angle with respect to the direction changing
portion.
14. The cooking apparatus of claim 11, wherein the multiple-surface
portion is provided in plural, and comprises an inner angles formed
as each surface of the multiple-surface portion meets one another,
and the inner angle is formed to be equal to or greater than 90
degrees.
15. The cooking apparatus of claim 11, wherein the channel
comprises a discharging portion configured to discharge the oil
particles and the air current to an outside, and the discharging
portion is formed between the guide portion and at least one
surface of the multiple-surface portion.
16. A filter to discharge a gas and particles that are introduced,
comprising: a first channel for inflow of the gas and the
particles; and a second channel comprising: a direction changing
portion to change a direction of the gas and the particles
introduced through the first channel, and an angled guide portion
to guide the particles and the gas.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is related to and claims priority to Korean
Patent Application No. 2011-0123954, filed on Nov. 25, 2011 in the
Korean Intellectual Property Office, the disclosure of which is
incorporated herein.
BACKGROUND
[0002] 1. Field
[0003] The embodiments discussed herein relate to a grease filter
having high efficiency in capturing oil.
[0004] 2. Description of the Related Art
[0005] A ventilation apparatus may be installed at a kitchen. A
ventilation apparatus is configured to discharge contaminated air,
that is, hazardous gas, generated during a cooking process of a
food, and introduce fresh air to flow to an indoor space, thereby
improving the living environment.
[0006] The ventilation apparatus may be provided with a filter to
eliminate hazardous gas and with a grease filter to prevent the
accumulation of oil particles, for example, inside a duct. The
filter and the grease filter, instead of immediately discharging
the hazardous gas generated in a kitchen to an atmosphere, capture
the polluted material such as oil from the hazardous gas, and then
discharge the purified air to an atmosphere.
[0007] The grease filter may be configured to prevent a duct and
other driving apparatus of a ventilation apparatus from being
polluted, by capturing fine oil particles that are generated during
a cooking process. In order to capture the oil particles
efficiently, the flow of the oil particles should be interrupted by
the filter inside a flow field so that the oil particles collide
with one another, and thereby the oil particles are captured while
being near and/or stuck to each other.
[0008] However, a pressure loss inside the flow field may be
induced by the interruption of the flow of the oil particles or by
the collision of the oil particles.
[0009] The pressure loss not only reduces the energy efficiency of
the ventilation apparatus, but also increases the flow noise and
vibration noise thereof.
SUMMARY
[0010] According to an aspect of an exemplary embodiment of the
present invention, a grease filter is provided that is capable of
reducing a pressure loss generated while air passes through the
grease filter.
[0011] According to an aspect of an exemplary embodiment of the
present invention, a grease filter is provided that is capable of
increasing the efficiency in capturing oil.
[0012] Additional aspects of the disclosure will be set forth in
part in the description which follows and, in part, will be obvious
from the description, or may be learned by practice of the
disclosure.
[0013] In accordance with an aspect of an exemplary embodiment of
the present invention, a grease filter includes an inflow portion
and a channel. The inflow portion may be configured for oil
particles to be introduced therethrough. The channel may be
provided to discharge air current and oil particles, which are
introduced through the inflow portion, to an outside. The channel
may include an upper channel disposed in parallel, while spaced
apart a predetermined distance to form the inflow portion, and a
lower channel including a direction changing portion provided to
change a direction of the air current and the oil particles
introduced through the inflow portion, and a guide portion having a
predetermined angle to guide the oil particles and the air current,
the direction of which are changed by the direction changing
portion.
[0014] The guide portion may be formed in an obtuse angle with
respect to the direction changing portion.
[0015] The upper channel may include an inflow guide formed in a
predetermined angle to form the inflow portion, and a
multiple-surface portion extending from the inflow guide to
maximize a contact surface of the oil particles.
[0016] A plurality of multiple-surface portions may be
provided.
[0017] The multiple-surface portion may include inner angle(s)
formed by having each surface of the multiple-surface portion meet
one another, and the inner angle may be formed to be equal to, or
greater, than 90 degrees
[0018] The multiple-surface portion may be formed to surround an
outer side of the guide portion of the lower channel.
[0019] The channel may include a discharging portion configured to
discharge the oil particles and the air current to outside, and the
discharging portion may be formed between the guide portion of the
lower channel and at least one surface of the multiple-surface
portion of the upper channel
[0020] The guide portion and the at least one surface of the
multiple-surface portion forming the discharging portion may be
disposed in parallel to each other.
[0021] A width of the guide portion and a width of the at least one
surface of the multiple-surface portion forming the discharging
portion may be gradually narrowed toward the outside.
[0022] An end portion of the multiple-surface portion may be
diverged to be disposed opposite each other.
[0023] In accordance with an exemplary embodiment of the present
invention, a cooking apparatus includes a heating apparatus, a
body, a suction portion and a grease filter. The body may be
provided with the heating apparatus at an upper side thereof. The
suction portion may be provided to intake oil particles and air
current, which are generated through the cooking portion, from one
side of the body. The grease filter may be configured to capture
oil particles that are taken in through the suction portion. The
grease filter may include an inflow portion configured for oil
particles and air current to be introduced therethrough, and a
panel provided for the oil particles and the air current that are
introduced through the inflow portion to be discharged to an
outside. The panel may include an upper channel provided in
parallel while being spaced apart in a predetermined distance to
form the inflow portion, and a lower channel including a direction
changing portion provided to change a direction of the oil
particles and the air current that are introduced through the
inflow portion, and a guide portion having a predetermined angle to
guide the oil particles and the air current, of which the direction
is changed by the direction changing portion.
[0024] The suction portion may be configured to extend formed from
the one side of the body upward, and include a plurality of suction
holes formed to intake the oil particles and the air current, which
are generated from the heating apparatus, sideways.
[0025] The guide portion may be formed in an obtuse angle with
respect to the direction changing portion.
[0026] A plurality of multiple-surface portions may be provided,
and include inner angles formed as each surface of the
multiple-surface portions meet one another. The inner angle may be
formed to be equal to, or greater than, 90 degrees.
[0027] The channel may include a discharging portion configured to
discharge the oil particles and the air current to an outside, and
the discharging portion may be formed between the guide portion and
at least one surface of the multiple-surface portion.
[0028] A grease filter minimizes the flow resistance of air,
thereby reducing a pressure loss at an inside a flow field.
[0029] In addition, efficiency in capturing oil may be enhanced by
maximizing the contact surface of the oil particles.
BRIEF DESCRIPTION OF THE DRAWINGS
[0030] These and/or other aspects of the disclosure will be move
apparent from the following description of certain exemplary
embodiments with reference to the accompanying drawings, in
which:
[0031] FIG. 1 illustrates a cooking apparatus provided with a
grease filter installed thereto in accordance with an exemplary
embodiment of the present invention.
[0032] FIG. 2 illustrates a grease filter in accordance with an
exemplary embodiment of the present invention.
[0033] FIG. 3A illustrates a grease filter in accordance with an
exemplary embodiment of the present invention.
[0034] FIG. 3B illustrates a test on a velocity of flow passing
through a grease filter in accordance with an exemplary embodiment
of the present invention.
[0035] FIG. 4 illustrates a grease filter in accordance with an
exemplary embodiment of the present invention.
[0036] FIG. 5A illustrates a grease filter in accordance with an
exemplary embodiment of the present invention.
[0037] FIG. 5B illustrates a test on a velocity of flow passing
through a grease filter in accordance with an exemplary embodiment
of the present invention.
[0038] FIGS. 6 to 7 illustrate exemplary capture efficiencies at
air volumes of 120 DFM and 240 CFM according to different types of
filters.
[0039] FIGS. 8 to 9 illustrate exemplary capture efficiencies
relative to pressure loss at air volumes of 120 DFM and 240 CFM
according to different types of filters.
DETAILED DESCRIPTION
[0040] Reference will now be made in detail to the embodiments of
the present invention, examples of which are illustrated in the
accompanying drawings, wherein like reference numerals refer to
like elements throughout.
[0041] Referring to FIG. 1, a cooking apparatus 1 includes a body 3
forming an exterior, a heating apparatus 3A provided at an upper
side of the body 3, and a suction portion 2 provided on an edge of
a side of the body 3.
[0042] The heating apparatus 3A is provided to apply heat directly
to a food or a cookware containing food by generating
high-temperature heat.
[0043] Although an electric range, an upper portion of which is
provided in a flat shape and disposed at an upper surface thereof,
is illustrated as the heating apparatus 3A of the embodiment of the
present invention, a gas range or an apparatus configured to
perform a cooking by applying heat on a food may also be used as
the heating apparatus 3A.
[0044] The suction portion 2 may be protrudedly formed from an
upper surface of the body 3 while being disposed at a side away
from the center of the upper surface of the body.
[0045] A plurality of suction holes 2A may be formed in a
horizontal direction while spaced apart from each other in a
predetermined distance on one surface of the suction portion 2, and
the polluted air, the smoke, or the odor generated during a cooking
process is absorbed through the plurality of suction holes 2A.
[0046] The suction hole 2A may be formed to take in the polluted
air, which is being generated by the heating apparatus 3A,
sideways.
[0047] Although not illustrated herein, the body 3 may be provided
with a draft apparatus to take in the polluted air, smoke, or odor
through the suction portion 2, and a discharging duct and a
discharging hole for the air introduced by the draft apparatus to
flow therethrough.
[0048] A large amount of oil particles generated during a cooking
process may be included in the polluted air that is induced through
the suction portion 2.
[0049] A grease filter 10 may be mounted to prevent the oil
particles from being accumulated on a filter or at an inside a
ventilation path.
[0050] The grease filter 10 may be mounted at a lower end portion
of the suction portion 2 so that the polluted air, the smoke, or
the odor induced through the suction hole 2A may pass through the
grease filter 10 and having a height h and width t.
[0051] As illustrated on FIGS. 2 to 3B, the grease filter 10
includes an inflow portion 11 through which the oil particles and
the air current are introduced, and a channel 20 configured so that
the oil particles and the air current that are introduced through
the inflow portion 11 may be discharged to an outside area.
[0052] The channel 20 includes an upper channel 22, disposed in
parallel while spaced apart a predetermined distance, so that the
inflow portion 11 is formed, and a lower channel 25 to change the
direction of the oil particles and the air current introduced
through the inflow portion 11 and to guide the oil particles and
the air current introduced through the inflow portion 11 to be
discharged to an outside.
[0053] The upper channel 22 is provided in at least one unit
thereof. The upper channel 22 may be formed in a bilateral symmetry
while being consecutively disposed.
[0054] The upper channel 22 includes an inflow guide 22a having a
predetermined angle to form the inflow portion 11, and a
multiple-surface portion 23 extendedly formed from the inflow guide
22a.
[0055] Since the inflow guide 22a may provided in a bilateral
symmetry pair, the inflow portion 11 may be formed by the inflow
guide 22a of one side of the upper channel 22 and the inflow guide
22a of the other side of the upper channel 22 facing each
other.
[0056] The oil particles and the air current introduced through the
inflow portion 11 formed as such change the direction thereof
through a direction changing portion 25a of the lower channel
25.
[0057] The lower potion channel 25 includes the direction changing
portion 25a provided at a lower side of the inflow portion 11 to
change the direction of the oil particles and the air current that
are introduced through the inflow portion 11, and a guide portion
25b extendedly formed from the direction changing portion 25a to
guide the oil particles and the air current, after having the
direction thereof changed by the direction changing portion 25a, to
be discharged to an outside.
[0058] Since a sudden change of a direction of a flow may cause a
flow resistance, the guide portion 25b of the lower channel 25 may
form an obtuse angle .theta.1 with respect to the direction
chancing portion 25a.
[0059] The oil particles and the air current guided by the guide
portion 25b of the lower channel 25 move along the channel 20 that
is formed by the lower channel 25 and the upper channel 22.
[0060] The upper channel 22 includes the multi-surface portion 23
that is extendedly formed from the inflow guide 22a to maximize the
contact surface of the oil particles.
[0061] By maximizing the contact surface of the oil particles as
such, the efficiency in capturing the oil particles may be
enhanced.
[0062] The multiple-surface portion 23 may be formed with at least
three surfaces.
[0063] In addition, the multiple-surface portion 23 may be formed
to surround an outer side of the guide portion 25b of the lower
channel 25.
[0064] The multiple-surface portion 23 includes an inner angle
.theta.2 formed by having the surfaces of the multi-surface portion
23 meet each other, and the inner angle .theta.2 may be equal to or
greater than 90 degrees.
[0065] Having the inner angle .theta.2 equal to, or greater than,
90 degrees may minimize the flow resistance by preventing the
sudden change of the direction with respect to the flow of the air
current, and at the same time, may maximize the contact surface of
the oil particles.
[0066] The channel 20 includes a discharging portion 12 so that the
oil particles and the air current may be discharged to an
outside.
[0067] The discharging portion 12 may be formed between the guide
portion 25b of the lower channel 25 and at least one surface of the
multiple-surface portion 23 of the upper channel 22.
[0068] The multiple-surface portion 23 of the upper channel 22
according to the embodiment of the present invention is provided in
an upside-down shape of a letter `Y` having three surfaces.
[0069] The multiple-surface portion 23 may include a first
multiple-surface portion 23a extending from the inflow guide 22a of
the upper channel 22, a second multiple-surface portion 23c
extending from the first multiple-surface portion 23a downward
while forming 90 degrees with respect to the first multiple-surface
portion 23a , and a third multiple-surface portion 23b extending
from the second multiple-surface portion 23c while forming an angle
of 90 degrees or above with respect to the second multiple-surface
portion 23c.
[0070] The discharging portion 12 is formed by the outer surface of
the guide portion 25b of the lower channel 25 and by the third
multiple-surface portion 23b that is positioned at the end portion
of the multiple-surface portion 23 of the upper channel 22.
[0071] Thus, the direction of oil particles and the air current
introduced through the inflow portion 11 is changed by the
direction changing portion 25a of the lower channel 25. The oil
particles and the air current move through the guide portion 25b of
the lower channel 25 and the multiple-surface portion 23 of the
upper channel 22, and attains high capturing efficiency while
making contact with the first multiple-surface portion 23a, the
second multiple-surface portion 23c, and the third multiple-surface
portion 23b.
[0072] The sectional area of the multiple-surface portion 23
increases in proportion to the number of the surfaces added, and
the number of the surfaces added increases the sectional area,
thereby increasing the probability of the oil particles being
captured while colliding to a wall surface of the filter.
Furthermore, by having added number of the surfaces, the elbow
resistance is reduced, thereby reducing the pressure loss.
[0073] The pressure loss at an elbow tube may be calculated as in
equation (1):
.DELTA.P=.DELTA..intg..theta./90(rV.sup.2)/2g (1)
where .DELTA.P=pressure loss, .DELTA..intg.=Coefficient of
Friction, .theta.=Angle, V.sup.2=Fluid Velocity, r=Air Density,
g=Acceleration of Gravity.
[0074] Under similar conditions, if the multiple-surface portion 23
of an exemplary embodiment (e.g., FIG. 5) has a surface added, the
total number of the surfaces is 4, thereby having 0.5 times of
pressure loss when compared to the pressure loss in a case when the
total number of the surfaces is 3.
[0075] Thus, the capturing efficiency of the oil particles may be
enhanced, while minimizing the pressure loss.
[0076] FIG. 3B illustrates a test on a velocity of flow passing
through a grease filter in accordance with an exemplary embodiment
of the present invention.
[0077] As illustrated on FIG. 4, the grease filter 10 according to
an embodiment of the present invention includes the upper channel
22 having a plurality of multiple-surface portions 23.
[0078] The multiple-surface portion 23 includes the first
multiple-surface portion 23a, for example, extendedly formed in
perpendicular from the inflow guide 22a of the upper channel 22,
the second multiple-surface portion 23c extendedly formed from the
first multiple-surface portion 23a toward a lower direction, and
the third multiple-surface portion 23b extendedly formed from the
second multiple-surface portion 23c while having an angle equal to
or greater than 90 degrees.
[0079] The discharging portion 12 may be formed by the outer
surface of the guide portion 25b of the lower channel 25 and by the
third multiple-surface portion 23b that is positioned at the end
portion of the multiple-surface portion 23 of the upper channel
22.
[0080] Thus, the direction of oil particles and the air current
introduced through the inflow portion 11 is changed by the
direction changing portion 25a of the lower channel 25. The oil
particles and the air current then move along the channel 20 that
is formed through the guide portion 25b of the lower channel 25 and
the multiple-surface portion 23 of the upper channel 22.
[0081] The oil particles may be able to attain high capturing
efficiency while making contact with the first multiple-surface
portion 23a, the second multiple-surface portion 23c, and the third
multiple-surface portion 23b of the multiple-surface portion
23.
[0082] As illustrated on FIG. 5A, the grease filter 10 according to
an exemplary embodiment of the present invention includes the upper
channel 22 having a plurality of multiple-surface portions 23.
[0083] The multiple-surface portion 23 includes the first
multiple-surface portion 23a extendedly formed in a horizontal
direction from the inflow guide 22a of the upper channel 22, the
second multiple-surface portion 23c extendedly formed from the
first multiple-surface portion 23a while having an angle equal to
or greater than 90 degrees, the third multiple-surface portion 23D
extendedly formed from the second multiple-surface portion 23c
toward a lower direction, and a fourth multiple-surface portion 23b
extendedly formed from the third multiple-surface portion 23D while
having an angle equal to or greater than 90 degrees.
[0084] The discharging portion 12 is formed by the outer surface of
the guide portion 25b of the lower channel 25 and by the third
multiple-surface portion 23D and the fourth multiple-surface
portion 23b.
[0085] Thus, the direction of oil particles and the air current
introduced through the inflow portion 11 is changed by the
direction changing portion 25a of the lower channel 25. The oil
particles and the air current then move along the channel 20 that
is formed through the guide portion 25b of the lower channel 25 and
the multiple-surface portion 23 of the upper channel 22.
[0086] The oil particles may be able to attain high capturing
efficiency while making contacts with the first multiple-surface
portion 23a, the second multiple-surface portion 23c, the third
multiple-surface portion 23D, and the fourth multiple-surface
portion 23b.
[0087] Referring to FIG. 5B, a simulation of testing the velocity
of the fluid passing through the grease filter 10 is illustrated
according to an exemplary embodiment of the present invention.
[0088] FIGS. 6 to 7 illustrate exemplary capture efficiencies at
air volumes of 120 DFM and 240 CFM according to different types of
filters. FIGS. 8 to 9 illustrate exemplary capture efficiencies
relative to pressure loss at air volumes of 120 DFM and 240 CFM
according to different types of filters
[0089] The air flow of the simulation is set at 120 CFM and 240
CFM, and the analysis of the air flow is conducted with regard to a
conventional baffle A, a structure B having a partition in the
middle of a baffle, a structure C having three multiple-surface
portions according to the embodiment of the present invention, and
a structure D having four multiple-surface portions according to
the embodiment of the present invention.
[0090] As a result, when tested from the small particles having the
particle sizes in the range of 2 .mu.m and 3 .mu.m, the structures
C and D having the multiple-surface portions of an exemplary
embodiment of the present invention are shown to have higher
efficiency when compared to the conventional structures A and
B.
[0091] FIGS. 8 to 9 illustrate exemplary capture efficiencies
relative to pressure loss at air volumes of 120 DFM and 240 CFM
according to different types of filters.
[0092] The simulation is conducted with reference to a conventional
baffle A, a structure B having three multiple-surface portions
according to an exemplary embodiment of the present invention, and
a structure C having four multiple-surface portions.
[0093] The X-axis represents the pressure loss, and the Y-axis
represents the average capture efficiency of the filter.
[0094] A filter may be considered to be of high quality when having
a low pressure loss and high capture efficiency. The further to the
left side of FIGS. 8 and 9, a result of a simulation is indicated,
the lower pressure loss the result of the simulation represents,
and the higher to the top side of FIGS. 8 and 9 a result of a
simulation is marked indicated, the higher capture efficiencies the
result of the simulation represents.
[0095] Thus, a better quality filter has characteristics
illustrated towards the top-left side of FIGS. 8 and 9.
[0096] As illustrated in FIGS. 8 and 9, for example, the structures
B and C having multiple-surface portions according to an exemplary
e embodiment of the present invention have superior qualities when
compared to the conventional structure A.
[0097] Although a few embodiments of the present disclosure have
been shown and described, it would be appreciated by those skilled
in the art that changes may be made in these embodiments without
departing from the principles and spirit of the disclosure, the
scope of which is defined in the claims and their equivalents.
* * * * *