US20130133639A1 - Grease filter - Google Patents

Grease filter Download PDF

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Publication number
US20130133639A1
US20130133639A1 US13/682,081 US201213682081A US2013133639A1 US 20130133639 A1 US20130133639 A1 US 20130133639A1 US 201213682081 A US201213682081 A US 201213682081A US 2013133639 A1 US2013133639 A1 US 2013133639A1
Authority
US
United States
Prior art keywords
oil particles
channel
guide
inflow
grease filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/682,081
Other languages
English (en)
Inventor
Kyu Suk Lee
Hyun Ku Jeong
Kyu Ho Shin
Jin Ho Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JEONG, HYUN KU, LEE, JIN HO, LEE, KYU SUK, SHIN, KYU HO
Publication of US20130133639A1 publication Critical patent/US20130133639A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/06—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation

Definitions

  • the embodiments discussed herein relate to a grease filter having high efficiency in capturing oil.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the pressure loss not only reduces the energy efficiency of the ventilation apparatus, but also increases the flow noise and vibration noise thereof.
  • a grease filter is provided that is capable of reducing a pressure loss generated while air passes through the grease filter.
  • a grease filter is provided that is capable of increasing the efficiency in capturing oil.
  • 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.
  • the guide portion may be formed in an obtuse angle with respect to the direction changing portion.
  • 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.
  • a plurality of multiple-surface portions may be provided.
  • 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
  • the multiple-surface portion may be formed to surround an outer side of the guide portion of the lower channel.
  • 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
  • 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.
  • 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.
  • An end portion of the multiple-surface portion may be diverged to be disposed opposite each other.
  • 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.
  • 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.
  • the guide portion may be formed in an obtuse angle with respect to the direction changing portion.
  • 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.
  • 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.
  • a grease filter minimizes the flow resistance of air, thereby reducing a pressure loss at an inside a flow field.
  • efficiency in capturing oil may be enhanced by maximizing the contact surface of the oil particles.
  • FIG. 1 illustrates a cooking apparatus provided with a grease filter installed thereto in accordance with an exemplary embodiment of the present invention.
  • FIG. 2 illustrates a grease filter in accordance with an exemplary embodiment of the present invention.
  • FIG. 3A illustrates a grease filter in accordance with an exemplary embodiment of the present invention.
  • 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.
  • FIG. 4 illustrates a grease filter in accordance with an exemplary embodiment of the present invention.
  • FIG. 5A illustrates a grease filter in accordance with an exemplary embodiment of the present invention.
  • 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.
  • 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.
  • a cooking apparatus 1 includes a body 3 forming an exterior, a heating apparatus 3 A 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 .
  • the heating apparatus 3 A is provided to apply heat directly to a food or a cookware containing food by generating high-temperature heat.
  • heating apparatus 3 A 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 3 A 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 3 A.
  • 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.
  • a plurality of suction holes 2 A 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 2 A.
  • the suction hole 2 A may be formed to take in the polluted air, which is being generated by the heating apparatus 3 A, sideways.
  • 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.
  • 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 .
  • 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.
  • 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 2 A may pass through the grease filter 10 and having a height h and width t.
  • 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.
  • 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.
  • 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.
  • the upper channel 22 includes an inflow guide 22 a having a predetermined angle to form the inflow portion 11 , and a multiple-surface portion 23 extendedly formed from the inflow guide 22 a.
  • the inflow portion 11 may be formed by the inflow guide 22 a of one side of the upper channel 22 and the inflow guide 22 a of the other side of the upper channel 22 facing each other.
  • 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 25 a of the lower channel 25 .
  • the lower potion channel 25 includes the direction changing portion 25 a 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 25 b extendedly formed from the direction changing portion 25 a to guide the oil particles and the air current, after having the direction thereof changed by the direction changing portion 25 a, to be discharged to an outside.
  • the guide portion 25 b of the lower channel 25 may form an obtuse angle ⁇ 1 with respect to the direction chancing portion 25 a.
  • the oil particles and the air current guided by the guide portion 25 b of the lower channel 25 move along the channel 20 that is formed by the lower channel 25 and the upper channel 22 .
  • the upper channel 22 includes the multi-surface portion 23 that is extendedly formed from the inflow guide 22 a to maximize the contact surface of the oil particles.
  • the efficiency in capturing the oil particles may be enhanced.
  • the multiple-surface portion 23 may be formed with at least three surfaces.
  • the multiple-surface portion 23 may be formed to surround an outer side of the guide portion 25 b of the lower channel 25 .
  • the multiple-surface portion 23 includes an inner angle ⁇ 2 formed by having the surfaces of the multi-surface portion 23 meet each other, and the inner angle ⁇ 2 may be equal to or greater than 90 degrees.
  • Having the inner angle ⁇ 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.
  • the channel 20 includes a discharging portion 12 so that the oil particles and the air current may be discharged to an outside.
  • the discharging portion 12 may be formed between the guide portion 25 b of the lower channel 25 and at least one surface of the multiple-surface portion 23 of the upper channel 22 .
  • 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.
  • the multiple-surface portion 23 may include a first multiple-surface portion 23 a extending from the inflow guide 22 a of the upper channel 22 , a second multiple-surface portion 23 c extending from the first multiple-surface portion 23 a downward while forming 90 degrees with respect to the first multiple-surface portion 23 a , and a third multiple-surface portion 23 b extending from the second multiple-surface portion 23 c while forming an angle of 90 degrees or above with respect to the second multiple-surface portion 23 c.
  • the discharging portion 12 is formed by the outer surface of the guide portion 25 b of the lower channel 25 and by the third multiple-surface portion 23 b that is positioned at the end portion of the multiple-surface portion 23 of the upper channel 22 .
  • the direction of oil particles and the air current introduced through the inflow portion 11 is changed by the direction changing portion 25 a of the lower channel 25 .
  • the oil particles and the air current move through the guide portion 25 b 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 23 a, the second multiple-surface portion 23 c, and the third multiple-surface portion 23 b.
  • 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.
  • the pressure loss at an elbow tube may be calculated as in equation (1):
  • 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.
  • the capturing efficiency of the oil particles may be enhanced, while minimizing the pressure loss.
  • 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.
  • the grease filter 10 includes the upper channel 22 having a plurality of multiple-surface portions 23 .
  • the multiple-surface portion 23 includes the first multiple-surface portion 23 a, for example, extendedly formed in perpendicular from the inflow guide 22 a of the upper channel 22 , the second multiple-surface portion 23 c extendedly formed from the first multiple-surface portion 23 a toward a lower direction, and the third multiple-surface portion 23 b extendedly formed from the second multiple-surface portion 23 c while having an angle equal to or greater than 90 degrees.
  • the discharging portion 12 may be formed by the outer surface of the guide portion 25 b of the lower channel 25 and by the third multiple-surface portion 23 b that is positioned at the end portion of the multiple-surface portion 23 of the upper channel 22 .
  • the direction of oil particles and the air current introduced through the inflow portion 11 is changed by the direction changing portion 25 a 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 25 b of the lower channel 25 and the multiple-surface portion 23 of the upper channel 22 .
  • the oil particles may be able to attain high capturing efficiency while making contact with the first multiple-surface portion 23 a, the second multiple-surface portion 23 c, and the third multiple-surface portion 23 b of the multiple-surface portion 23 .
  • the grease filter 10 includes the upper channel 22 having a plurality of multiple-surface portions 23 .
  • the multiple-surface portion 23 includes the first multiple-surface portion 23 a extendedly formed in a horizontal direction from the inflow guide 22 a of the upper channel 22 , the second multiple-surface portion 23 c extendedly formed from the first multiple-surface portion 23 a while having an angle equal to or greater than 90 degrees, the third multiple-surface portion 23 D extendedly formed from the second multiple-surface portion 23 c toward a lower direction, and a fourth multiple-surface portion 23 b extendedly formed from the third multiple-surface portion 23 D while having an angle equal to or greater than 90 degrees.
  • the discharging portion 12 is formed by the outer surface of the guide portion 25 b of the lower channel 25 and by the third multiple-surface portion 23 D and the fourth multiple-surface portion 23 b.
  • the direction of oil particles and the air current introduced through the inflow portion 11 is changed by the direction changing portion 25 a 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 25 b of the lower channel 25 and the multiple-surface portion 23 of the upper channel 22 .
  • the oil particles may be able to attain high capturing efficiency while making contacts with the first multiple-surface portion 23 a, the second multiple-surface portion 23 c, the third multiple-surface portion 23 D, and the fourth multiple-surface portion 23 b.
  • 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.
  • 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
  • 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.
  • 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.
  • 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.
  • 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.
  • the X-axis represents the pressure loss
  • the Y-axis represents the average capture efficiency of the filter.
  • a filter may be considered to be of high quality when having a low pressure loss and high capture efficiency.
  • 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.
US13/682,081 2011-11-25 2012-11-20 Grease filter Abandoned US20130133639A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110123954A KR20130058117A (ko) 2011-11-25 2011-11-25 그리스 필터
KR10-2011-0123954 2011-11-25

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150101588A1 (en) * 2013-10-11 2015-04-16 Samsung Electronics Co., Ltd. Grease filter, manufacturing method thereof and cooking device having the same
US20160209049A1 (en) * 2012-05-03 2016-07-21 Kurt Limberg Downdraft ventilation systems and methods
US20180133633A1 (en) * 2015-05-19 2018-05-17 Woco Industrietechnik Gmbh Device for the precipitation of particles from a gas stream
US20190046908A1 (en) * 2017-08-09 2019-02-14 Samsung Electronics Co., Ltd. Oil mist filter and air cleaner having the same
WO2022077756A1 (zh) * 2020-10-13 2022-04-21 佛山市顺德区美的洗涤电器制造有限公司 组合灶的滤网和具有其的组合灶
US11313565B2 (en) * 2019-04-28 2022-04-26 BSH Hausgeräte GmbH Cooker hood and filtering device thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200481646Y1 (ko) * 2015-05-19 2016-10-26 박찬명 자동튀김기

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US3566585A (en) * 1969-07-07 1971-03-02 Mona A Voloshen Grease-extracting apparatus
US3616744A (en) * 1969-08-21 1971-11-02 Donald D Jensen Air cleansing system for cooking ranges
US5014609A (en) * 1989-08-23 1991-05-14 H. Krantz Gmbh & Co. Inductive air passage
US5318609A (en) * 1991-09-26 1994-06-07 Rentschler Reven-Luftungssysteme Gmbh Separator for liquids in a stream of gas, in particular for oil mist
US20050260945A1 (en) * 2001-03-02 2005-11-24 Mhatre Ramesh N Diffuser for central air conditioning system
US20060157048A1 (en) * 2004-12-17 2006-07-20 Heilman Nikolaus J Grease extraction system, particulate extractor, and method

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US3945812A (en) * 1973-01-24 1976-03-23 Doane Dewitt H Method of filtering grease-laden air
DE19603689A1 (de) * 1996-02-02 1997-08-28 Gutermuth Patent Gmbh & Co Kg Abscheider
JP4731105B2 (ja) * 2003-07-15 2011-07-20 株式会社大気社 液滴捕集装置、及び、それを用いた塗装ブース
GB0803458D0 (en) * 2008-02-26 2008-04-02 Shaw Michael L A Grease filter and a ventilation arrangement incorporating such a filter

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US3566585A (en) * 1969-07-07 1971-03-02 Mona A Voloshen Grease-extracting apparatus
US3616744A (en) * 1969-08-21 1971-11-02 Donald D Jensen Air cleansing system for cooking ranges
US5014609A (en) * 1989-08-23 1991-05-14 H. Krantz Gmbh & Co. Inductive air passage
US5318609A (en) * 1991-09-26 1994-06-07 Rentschler Reven-Luftungssysteme Gmbh Separator for liquids in a stream of gas, in particular for oil mist
US20050260945A1 (en) * 2001-03-02 2005-11-24 Mhatre Ramesh N Diffuser for central air conditioning system
US20060157048A1 (en) * 2004-12-17 2006-07-20 Heilman Nikolaus J Grease extraction system, particulate extractor, and method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160209049A1 (en) * 2012-05-03 2016-07-21 Kurt Limberg Downdraft ventilation systems and methods
US10126000B2 (en) * 2012-05-03 2018-11-13 Broan-Nutone Llc Downdraft ventilation systems and methods
US11054145B2 (en) * 2012-05-03 2021-07-06 Broan-Nutone Llc Downdraft ventilation systems and methods
US20150101588A1 (en) * 2013-10-11 2015-04-16 Samsung Electronics Co., Ltd. Grease filter, manufacturing method thereof and cooking device having the same
US10137395B2 (en) * 2013-10-11 2018-11-27 Samsung Electronics Co., Ltd. Grease filter, manufacturing method thereof and cooking device having the same
US11135539B2 (en) 2013-10-11 2021-10-05 Samsung Electronics Co., Ltd. Grease filter, manufacturing method thereof and cooking device having the same
US20180133633A1 (en) * 2015-05-19 2018-05-17 Woco Industrietechnik Gmbh Device for the precipitation of particles from a gas stream
US11717778B2 (en) * 2015-05-19 2023-08-08 Woco Industrietechnik Gmbh Device for the precipitation of particles from a gas stream
US20190046908A1 (en) * 2017-08-09 2019-02-14 Samsung Electronics Co., Ltd. Oil mist filter and air cleaner having the same
US10953357B2 (en) * 2017-08-09 2021-03-23 Samsung Electronics Co., Ltd. Oil mist filter and air cleaner having the same
US11313565B2 (en) * 2019-04-28 2022-04-26 BSH Hausgeräte GmbH Cooker hood and filtering device thereof
WO2022077756A1 (zh) * 2020-10-13 2022-04-21 佛山市顺德区美的洗涤电器制造有限公司 组合灶的滤网和具有其的组合灶

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EP2596844A1 (en) 2013-05-29

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