US3792573A - Air cleaning structure - Google Patents
Air cleaning structure Download PDFInfo
- Publication number
- US3792573A US3792573A US00241587A US3792573DA US3792573A US 3792573 A US3792573 A US 3792573A US 00241587 A US00241587 A US 00241587A US 3792573D A US3792573D A US 3792573DA US 3792573 A US3792573 A US 3792573A
- Authority
- US
- United States
- Prior art keywords
- duct
- wall
- housing
- air
- inlet
- 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.)
- Expired - Lifetime
Links
- 238000004140 cleaning Methods 0.000 title description 4
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 11
- 238000013459 approach Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
-
- 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
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- 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
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M33/00—Other apparatus for treating combustion-air, fuel or fuel-air mixture
- F02M33/02—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel
- F02M33/08—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel returning to the fuel tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/28—Carburetor attached
Definitions
- ABSTRACT An air cleaner for an internal combustion engine embodying a centrifuging action to direct dust particles into a duct for exhaust to the atmosphere having separated the same for air directed into a chamber of increasing size for reduction of the velocity of said air as it approaches the vents through which it is drawn for passage to said engine.
- SHEET 2 BF 2 AIR CLEANING STRUCTURE This invention relates to an air cleaner for an internal combustion engine embodying a centrifuging action to separate dust particles from the air and to provide for a reduction in the initial velocity of clean air as it approaches the vents through which it is drawn for passage to the air intake of said engine.
- the structure herein comprises a cylindrical housing having a tangential deflection plate directing air inwardly setting up a centrifuging action for separation of dust particles into a radially narrow duct at the inner side of the outer wall of said housing which duct exhausts to the atmosphere and clean air by passes said duct and moves into a chamber portion of increasing size to reduce its velocity in approaching vents through which it is drawn into a passage running to the engine.
- FIG. 1 is a view in horizontal section taken on line l-l of FIG. 2 as indicated;
- FIG. 2 is a view in vertical section taken on line 2-2 of FIG. l as indicated;
- FIG. 3 is a broken view in perspective on an enlarged scale with some portions thereof being removed.
- the air cleaning device which comprises the subject matter of the invention herein consists of a cylindrical outer housing 112 having an outer wall 13, a removable top wall or cover 15, a chamber 16 therein and a bottom wall 19.
- a means for providing clean air to the engine which comprises an inner housing formed as a tubular member having an outer wall 26, a top wall 27 a second wall 28 spaced below said wall 27, and a chamber or passage 29 therein. Said upper wall is tapped to receive a stud bolt 30 disposed through an accommodating aperture in said cover 15. Said tubular member 25 is disposed within said outer housing 12 to be in an axially off center position with respect thereto as will be further described. Said tubular member extends downwardly of said bottom wall 19 through an accommodating opening 32 therein and preferably is secured thereto.
- a helical flange 34 Spaced upwardly of said bottom wall 19 is a helical flange 34 extending radially between said outer wall 13 and said tubular member 25 defining one revolution about said tubular member and having an upper end portion 36 in vertical alignment with its lower end portion 37 defining an outlet 40 therebetween as will be further described.
- Said slotted opening 42 is further defined by said walls 43 and 44.
- a wall 47 extends forwardly tangentially to said housing 12 commencing with said side wall 43 and extending forwardly sufficiently to overlie said slotted opening 42 forming a deflector and thus it defines an inlet passage 50 taken with the housing 12.
- the forward or free end of said wall 47 carries at right angles thereto a slotted flange 49 and an adjacent opposite portion of said housing 12 has a vertical projecting boss 53 which has formed thereon a corresponding slotted flange 54 projecting outwardly thereof.
- screen 60 Carried by said oppositely disposed flanges 49 and 54 and slidingly disposed therein is screen 60. It will be understood that said screen may be otherwise secured.
- the top wall or cover 15 above mentioned is of a configuration to overlie the housing 12 and to have a portion thereof extending to overlie the upper portion of said wall 47 and said screen 60.
- Said cover 15 has a slot 15a in its bottom side to receive therein and seat the upper edge portions of said housing, said wall and said screen.
- a duct 70 comprising a passage is formed by a wall 71 spaced radially inwardly a short distance from said outer housing wall 13.
- Said duct has a top wall 72.
- Said duct declines in height having its top wall define a helical path about the inner side of said wall 13.
- Said helical flange 32 forms the bottom wall of said duct.
- Said duct terminates with its discharge end portion 73 extendingjust within said discharge outlet 40 as indicated in FIG. 3.
- an exhaust vent 80 Extending outwardly of said housing 12 from said discharge outlet 40 is an exhaust vent 80 which reduces outwardly in transverse dimension and is shown here carrying at its outer end an exhaust fan member 81 which will draw and exhaust air from said housing as will be described hereinafter.
- the air cleaner herein is intended for use with an internal combustion engine as in connection with a tractor such as may be used for farming purposes or for hauling trailers. Such vehicles commonly have a stack providing air passage to the carburetion system of the engine. The air cleaner will be mounted onto the upper end of the stack in an appropriate manner such as by having the lower end portion of the tubular member 25 slipped onto the upper portion of the stack to be clamped thereon.
- the action of the engine will draw air into and through the housing 12.
- the exhaust fan member 81 will provide for sufficient and positive movement of air to pass through the housing 12 irrespective of the engine speed.
- the air cleaner will operate at a point of maximum efficiency even during the times when the engine may be idling or operating at low speeds.
- the wall 47 in forming a deflector initiates a centrifugal action which carries the dust particles of the air entering the slot opening 42 along the inner side of the wall l3'and into duct 70.
- the overlying flange 74 confines the upper reach of entering air directing it toward said duct 70.
- the air moving through said duct 70 is tapered downwardly to the exhaust end portion 73 thereof to be exhausted to the atmosphere through the exhaust passage or vent 80.
- the helical bottom wall 34 provides a downward sloping passage for the exhaust of any dust particles which come to rest thereupon. Said wall 34 also pro vides for the exhaust of dust particles along the bottom of said passage 70.
- An air cleaner for an internal combustion engine having in combination a cylindrical housing formed with an outer wall, an inner wall spaced from said outer wall forming a duct of narrow radial width within said housing,
- said duct decreasing in height from its inlet end toward its outlet end and having an overlying top wall
Abstract
An air cleaner for an internal combustion engine embodying a centrifuging action to direct dust particles into a duct for exhaust to the atmosphere having separated the same for air directed into a chamber of increasing size for reduction of the velocity of said air as it approaches the vents through which it is drawn for passage to said engine.
Description
United States Patent [1 91 Borsheim Feb. 19, 1974 AIR CLEANING STRUCTURE [76] Inventor: 19 71 A- Brsheini, 0231 Ave. N,
Fargo 58102 22 Filed: Apr. 6, 1972 21 Appl. No.: 241,587
[52] U.S. C1 55/337, 55/399, 55/413, 55/457, 55/DIG. 28 [51] Int. Cl ..B0]1d1 /12 [58] Field] of Search 55/337, 394, 399, 413, 447, 55/456, 459, DIG. 28, 395, 397, 398, 431, 454, 457, 458, 492; 209/143 [56] References Cited UNITED STATES PATENTS 775,664 11/1904 McVeety 55/413 X 2,316,836 4/1943 Breuer 55/337 X 1,720,536 7/1929 Young 55/394 X 570,443 11/1896 Allington 55/399 X 2,666,632 1/1954 Culver et a1. 55/447 X 3,568,414 3/1971 Spriggs et a]. 55/337 X 458,773 9/1891 Lee 55/459 3,696,591 10/1972 Bennett et a1. 55/337 2,343,682 3/1944 McCurdy 55/459 X 499,468 6/1893 McNeal 209/143 2,850,162 9/1958 Widmer 209/143 X Primary Examiner-Tim R. Miles Assistant Examiner-Wil1iam Cuchlinski, Jr.
Attorney, Agent, or FirmReif and Gregory [57] ABSTRACT An air cleaner for an internal combustion engine embodying a centrifuging action to direct dust particles into a duct for exhaust to the atmosphere having separated the same for air directed into a chamber of increasing size for reduction of the velocity of said air as it approaches the vents through which it is drawn for passage to said engine.
2 Claims, 3 Drawing Figures PATENTEDFEBIBW 3,792,573
SHEET 2 BF 2 AIR CLEANING STRUCTURE This invention relates to an air cleaner for an internal combustion engine embodying a centrifuging action to separate dust particles from the air and to provide for a reduction in the initial velocity of clean air as it approaches the vents through which it is drawn for passage to the air intake of said engine.
Representative of the closest art appears to be U. S. Pat. No. 2,846,024 dated Aug. 5, 1958, issued to Theodor Bremi on a Cyclone structure. Although a centrifuging action is embodied in this patent, the structure involved is substantially different from the applicants and a different operation is effected. Bremi discloses an open bottom narrowing passage of increasing height, an underlying swirl chamber with a relatively large deflection plate and a raised vent to receive cleaned air. The applicants structure is unobviously different and readily distinguishable therefrom.
It is an object of this invention to provide an air cleaner for an internal combustion engine which embodies a centrifugal action for the separation of dust particles from incoming air and for directing the same through an enclosed duct running to the atmosphere and which provides for clear air to pass into an area of increased size resulting in a reduction of the velocity of said air for its entry into a passage which runs to the air intake of said engine.
It is another object of this invention to provide an air cleaner of the type above indicated wherein an air passage to receive clean air is disposed in an off center position within the outer housing of said air cleaner.
It is further an object of this invention with respect to an air cleaner of the type above indicated wherein the member receiving cleaned air for passage to the engine has vertically elongated louvered slots with the louvers thereof being disposed in the direction of the flow of air.
It is still another object of the invention herein with respect to the air cleaner above indicated wherein the passage within said air cleaner receiving dust particles for discharge to the atmosphere has a helically disposed bottom wall.
It is still another object of the invention herein to provide an air cleaner having a vertically elongated inlet therein, a deflector wall tangential to the housing of said cleaner to deflect air into said cleaner in a centrifuging action and a screen in connection with said wall overlying said opening into said cleaner.
Generally stated the structure herein comprises a cylindrical housing having a tangential deflection plate directing air inwardly setting up a centrifuging action for separation of dust particles into a radially narrow duct at the inner side of the outer wall of said housing which duct exhausts to the atmosphere and clean air by passes said duct and moves into a chamber portion of increasing size to reduce its velocity in approaching vents through which it is drawn into a passage running to the engine.
These and other objects and advantages of the invention will be set forth in the following description made in connection with the accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:
FIG. 1 is a view in horizontal section taken on line l-l of FIG. 2 as indicated;
FIG. 2 is a view in vertical section taken on line 2-2 of FIG. l as indicated; and
FIG. 3 is a broken view in perspective on an enlarged scale with some portions thereof being removed.
DESCRIPTION OF A PREFERRED EMBODIMENT Referring to the drawings, the air cleaning device which comprises the subject matter of the invention herein consists of a cylindrical outer housing 112 having an outer wall 13, a removable top wall or cover 15, a chamber 16 therein and a bottom wall 19. I
Disposed within said outer housing is a means for providing clean air to the engine which comprises an inner housing formed as a tubular member having an outer wall 26, a top wall 27 a second wall 28 spaced below said wall 27, and a chamber or passage 29 therein. Said upper wall is tapped to receive a stud bolt 30 disposed through an accommodating aperture in said cover 15. Said tubular member 25 is disposed within said outer housing 12 to be in an axially off center position with respect thereto as will be further described. Said tubular member extends downwardly of said bottom wall 19 through an accommodating opening 32 therein and preferably is secured thereto.
Spaced upwardly of said bottom wall 19 is a helical flange 34 extending radially between said outer wall 13 and said tubular member 25 defining one revolution about said tubular member and having an upper end portion 36 in vertical alignment with its lower end portion 37 defining an outlet 40 therebetween as will be further described.
Formed in said outer wall 13 is an air inlet 42 formed as a vertical slot opening extending from the flange 34 adjacent its portion 36 and extending to a point just short of the upper end of said outer housing forming a narrow wall 46 therebetween. Said air inlet is positioned to be located in said outer wall in the area thereof which preferably is closest radially to said tubular member 25.
Said slotted opening 42 is further defined by said walls 43 and 44. A wall 47 extends forwardly tangentially to said housing 12 commencing with said side wall 43 and extending forwardly sufficiently to overlie said slotted opening 42 forming a deflector and thus it defines an inlet passage 50 taken with the housing 12. The forward or free end of said wall 47 carries at right angles thereto a slotted flange 49 and an adjacent opposite portion of said housing 12 has a vertical projecting boss 53 which has formed thereon a corresponding slotted flange 54 projecting outwardly thereof. Carried by said oppositely disposed flanges 49 and 54 and slidingly disposed therein is screen 60. It will be understood that said screen may be otherwise secured.
Underlying said wall 47 and said screen and extending to said wall 13 of said housing 12 is a bottom wall 62.
The top wall or cover 15 above mentioned is of a configuration to overlie the housing 12 and to have a portion thereof extending to overlie the upper portion of said wall 47 and said screen 60. Said cover 15 has a slot 15a in its bottom side to receive therein and seat the upper edge portions of said housing, said wall and said screen.
Extending substantially the full extent of said tubular member 25 between the helical flange 34 and the wall 28 are a plurality of slot-like louvered or finned openings 65 disposed circumferentially of said tubular member substantially diametrically opposite of said slotted opening or inlet 42. Said louvered openings are located preferably within said housing 12 in position to be radi' ally the maximum distance away from said wall 13.
A duct 70 comprising a passage is formed by a wall 71 spaced radially inwardly a short distance from said outer housing wall 13. Said duct has a top wall 72. Said duct declines in height having its top wall define a helical path about the inner side of said wall 13. Said helical flange 32 forms the bottom wall of said duct. Said duct terminates with its discharge end portion 73 extendingjust within said discharge outlet 40 as indicated in FIG. 3. A forward and upward extension of said top wall 72 is formed as a flange 74 which radially extends between said outer wall 13 and the adjacent wall 26 of said tubular member 25 and extends to a point which overlies the upper end of the inlet 42 and which at such point is just short of engagement with the adjacent portion of the cover 15.
Extending outwardly of said housing 12 from said discharge outlet 40 is an exhaust vent 80 which reduces outwardly in transverse dimension and is shown here carrying at its outer end an exhaust fan member 81 which will draw and exhaust air from said housing as will be described hereinafter. OPERATION The air cleaner herein is intended for use with an internal combustion engine as in connection with a tractor such as may be used for farming purposes or for hauling trailers. Such vehicles commonly have a stack providing air passage to the carburetion system of the engine. The air cleaner will be mounted onto the upper end of the stack in an appropriate manner such as by having the lower end portion of the tubular member 25 slipped onto the upper portion of the stack to be clamped thereon.
The action of the engine will draw air into and through the housing 12. The exhaust fan member 81 will provide for sufficient and positive movement of air to pass through the housing 12 irrespective of the engine speed. Thus the air cleaner will operate at a point of maximum efficiency even during the times when the engine may be idling or operating at low speeds.
With the air cleaner suitably mounted in operating position, the action of the internal combustion engine and of the exhaust fan 81 will draw air through the screen 60, into the inlet passage 50 and as deflected by the wall 47 into and through the slot opening 42 for entrance into the chamber of the housing 12. The wall 47 which forms the outer wall of the inlet passage 50 is continuous with the side 43 of said slot 42 and forms a continuation thereof tangential to the housing 12.
The wall 47 in forming a deflector initiates a centrifugal action which carries the dust particles of the air entering the slot opening 42 along the inner side of the wall l3'and into duct 70. The overlying flange 74 confines the upper reach of entering air directing it toward said duct 70. The air moving through said duct 70 is tapered downwardly to the exhaust end portion 73 thereof to be exhausted to the atmosphere through the exhaust passage or vent 80.
With the centrifuging action present drawing the dust particles of the air into duct 70, the air by-passing said duct 70 and moving about said center tubular member 25 is clean air. With said tubular member 25 being positioncd in an off center position within said housing 12 and having a maximum free space thereabout at its side remote from said outlet 42, the velocity of the air passing about said .tubular member will decrease substantially as it passes the vents or inlet openings 65 to be drawn therethrough and through the passage 29 of said tubular member 25 into the air inlet of the engine.
The entrance to the duct is spaced inwardly of said housing 12 spaced from said slot opening 42 sufficiently to permit centrifuging action to effectively separate dust particles from the air passing about said tubular member 25 for passage to the air intake of the engine.
The helical bottom wall 34 provides a downward sloping passage for the exhaust of any dust particles which come to rest thereupon. Said wall 34 also pro vides for the exhaust of dust particles along the bottom of said passage 70.
It is understood that clean air will continue to move about said tubular member 25 to be drawn into and through the vents 65 for passage downward to the air intake of the engine.
The height and location of the vents 65 and the positioning of the inner tubular member 25 in an off center position as shown here in a preferred embodiment has resulted in unusually high efficiency of operation. Said air cleaner as herein described was subjected to conventional tests for the purpose of determining its efficiency in operation and the tests made indicate an operating efficiency of 95.5 percent. This represents an unusually high degree of efficiency in the operation of an air cleaner for an internal combustion engine.
It will of course be understood that various changes may be made in form, details arrangement and proportions of the parts without departing from the scope of the invention herein which, generally stated, consists in an apparatus capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.
What is claimed is: 1. An air cleaner for an internal combustion engine, having in combination a cylindrical housing formed with an outer wall, an inner wall spaced from said outer wall forming a duct of narrow radial width within said housing,
said duct decreasing in height from its inlet end toward its outlet end and having an overlying top wall,
the outlet end of said duct communicating with the atmosphere, an inlet into said housing tangential thereto and spaced from the adjacent inlet end of said duct,
an upright tubular member within said housing disposed in an axially off center position with respect thereto in the direction of said inlet and with respect to said duct disposed substantially thereabout,
said tubular member having a plurality of circumferentially spaced vents,
a passage in said tubular member for communication with an engine, and
said vents opening to said passage.
2 The structure set forth in claim 1, wherein said duct at its inlet end extends substantially the full height of said inlet of said housing,
said top of said duct defining a helical path to said outlet end of said duct, and
an outlet extending outwardly of said housing receiving therein said outlet end of said duct.
Claims (2)
1. An air cleaner for an internal combustion engine, having in combination a cylindrical housing formed with an outer wall, an inner wall spaced from said outer wall forming a duct of narrow radial width within said housing, said duct decreasing in height from its inlet end toward its outlet end and having an overlying top wall, the outlet end of said duct communicating with the atmosphere, an inlet into said housing tangential thereto and spaced from the adjacent inlet end of said duct, an upright tubular member within said housing disposed in an axially off center position with respect thereto in the direction of said inlet and with respect to said duct disposed substantially thereabout, said tubular member having a plurality of circumferentially spaced vents, a passage in said tubular member for communication with an engine, and said vents opening to said passage.
2. The structure set forth in claim 1, wherein said duct at its inlet end extends substantially the full height of said inlet of said housing, said top of said duct defining a helical path to said outlet end of said duct, and an outlet extending outwardly of said housing receiving therein said outlet end of said duct.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US24158772A | 1972-04-06 | 1972-04-06 | |
US441284A US3907529A (en) | 1972-04-06 | 1974-02-11 | Air cleaning structure |
Publications (1)
Publication Number | Publication Date |
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US3792573A true US3792573A (en) | 1974-02-19 |
Family
ID=26934421
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US00241587A Expired - Lifetime US3792573A (en) | 1972-04-06 | 1972-04-06 | Air cleaning structure |
US441284A Expired - Lifetime US3907529A (en) | 1972-04-06 | 1974-02-11 | Air cleaning structure |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US441284A Expired - Lifetime US3907529A (en) | 1972-04-06 | 1974-02-11 | Air cleaning structure |
Country Status (5)
Country | Link |
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US (2) | US3792573A (en) |
AU (1) | AU7244474A (en) |
CA (1) | CA1016824A (en) |
DE (1) | DE2455118A1 (en) |
FR (1) | FR2260388B3 (en) |
Cited By (21)
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US3907529A (en) * | 1972-04-06 | 1975-09-23 | Lewis A Borsheim | Air cleaning structure |
US3923481A (en) * | 1974-07-05 | 1975-12-02 | Turb O Jector Inc | Turb-o-air separator |
US4028076A (en) * | 1975-08-18 | 1977-06-07 | Parma Industries, Inc. | Centrifugal air precleaner for internal combustion engines |
US4084839A (en) * | 1975-07-14 | 1978-04-18 | Nippon Soken, Inc. | Gas bag protection apparatus for vehicles |
US4218223A (en) * | 1977-11-25 | 1980-08-19 | Donaldson Company, Inc. | Pre-cleaner for combustion engines |
FR2468756A1 (en) * | 1979-11-06 | 1981-05-08 | Saab Scania Ab | AIR INTAKE CLEANING DEVICE FOR AN INTERNAL COMBUSTION ENGINE |
US4276171A (en) * | 1976-06-22 | 1981-06-30 | E. Beaudrey & Cie | Water filter having spiral casing |
US4303423A (en) * | 1978-02-03 | 1981-12-01 | The United States Of America As Represented By The Secretary Of The Army | Engine air cleaner |
US4373940A (en) * | 1982-01-29 | 1983-02-15 | Medalie Manufacturing Co. | Air precleaner for internal combustion engine |
DE3615747A1 (en) * | 1986-05-09 | 1987-11-12 | Bielefeldt Ernst August | METHOD FOR SEPARATING AND / OR SEPARATING SOLID AND / OR LIQUID PARTICLES WITH A SPIRAL CHAMBER SEPARATOR WITH A SUBMERSIBLE TUBE AND SPIRAL CHAMBER SEPARATOR FOR CARRYING OUT THE METHOD |
EP0424079A1 (en) * | 1989-10-16 | 1991-04-24 | Elkem Technology A/S | Device for separating solid particles from a fluid |
US5503649A (en) * | 1994-03-04 | 1996-04-02 | Andreas Stihl | Air filter for an internal combustion engine |
US5505756A (en) * | 1995-03-17 | 1996-04-09 | American Farm Implement & Specialty, Inc. | Ramp discharge outlet air precleaner |
US5788848A (en) * | 1994-06-17 | 1998-08-04 | Cds Tech Ltd | Apparatus and methods for separating solids from flowing liquids or gases |
US6511595B2 (en) | 1993-02-11 | 2003-01-28 | Stephen Crompton | Apparatus and methods for separating solids from flowing liquids or gases |
US20060117959A1 (en) * | 2002-10-02 | 2006-06-08 | Gjertsen Lars H | Scrubber |
US20070056889A1 (en) * | 2005-09-09 | 2007-03-15 | Cds Technologies, Inc. | Apparatus for separating solids from flowing liquids |
US20070234903A1 (en) * | 2003-10-17 | 2007-10-11 | Donaldson Company, Inc. | Precleaner arrangement for use in air filtration; method; and, air cleaner using same |
US20070287535A1 (en) * | 2006-05-23 | 2007-12-13 | Bally Gaming, Inc. | Systems, methods and articles to facilitate playing card games with selectable odds |
US20120318143A1 (en) * | 2010-01-14 | 2012-12-20 | Husqvarna Ab | Air Inlet System for an Internal Combustion Engine |
DE112011100387B4 (en) | 2010-01-29 | 2022-07-14 | Donaldson Company, Inc. | Water separator assembly for use with an air cleaner, engine airflow inlet assembly, vehicle and method |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7638324U1 (en) * | 1976-12-08 | 1977-09-01 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg | AIR FILTER FOR COMBUSTION MACHINES, COMPRESSORS OR OTHER AIR SUCTION MACHINES |
US4222755A (en) * | 1978-11-17 | 1980-09-16 | Grotto Lavon P | Air filter arrangement to permit cleaning without removing element |
US4235611A (en) * | 1979-04-23 | 1980-11-25 | Fram Corporation | Air filter |
US6451080B1 (en) | 2000-07-10 | 2002-09-17 | Donaldson Company, Inc. | Air cleaner |
EP2241363B1 (en) | 2005-10-12 | 2013-01-16 | Kohler Co. | Air cleaner assembly |
US7998253B2 (en) * | 2007-07-19 | 2011-08-16 | Menardi-Mikropul Llc | Airflow reducing and redirecting arrangement for industrial baghouse |
US7914609B2 (en) * | 2007-10-29 | 2011-03-29 | Briggs & Stratton Corporation | Cyclonic air cleaner assembly |
GB0809111D0 (en) * | 2008-05-20 | 2008-06-25 | Agco Sa | Air filter system |
USD632770S1 (en) | 2008-06-13 | 2011-02-15 | Kohler Co. | Cyclonic air cleaner housing |
US8808432B2 (en) | 2008-06-13 | 2014-08-19 | Kohler Co. | Cyclonic air cleaner |
DE102011107730A1 (en) * | 2011-07-13 | 2013-01-17 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Snorkel for intake manifold of power conversion machine of vehicle, has separation zone which is tangentially extended from swirl region arranged parallel to inlet and adapted to intake suction air about axis parallel to rotation axis |
JP6556523B2 (en) * | 2015-06-24 | 2019-08-07 | 株式会社やまびこ | Air cleaner for stratified scavenging two-cycle internal combustion engine |
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US458773A (en) * | 1891-09-01 | Dust-separator | ||
US499468A (en) * | 1893-06-13 | Grain-separator | ||
US570443A (en) * | 1896-11-03 | Dust-collector | ||
US775664A (en) * | 1903-12-04 | 1904-11-22 | John F Ford | Dust separator and collector. |
US1720536A (en) * | 1926-06-16 | 1929-07-09 | Westinghouse Electric & Mfg Co | Heat exchanger |
US2316836A (en) * | 1939-12-15 | 1943-04-20 | Breuer Electric Mfg Co | Portable suction cleaner |
US2343682A (en) * | 1938-11-14 | 1944-03-07 | Mccurdy Howard | Helical centrifugal separator |
US2666632A (en) * | 1949-10-29 | 1954-01-19 | Kelly | Perlite popping furnace |
US2850162A (en) * | 1954-08-11 | 1958-09-02 | Buehler Ag Geb | Separators for pneumatically conveyed aggregate goods |
US3568414A (en) * | 1969-06-05 | 1971-03-09 | Donaldson Co Inc | Cleaning apparatus for fluid filters |
US3696591A (en) * | 1971-06-07 | 1972-10-10 | Novo Ind Corp | Air cleaner with improved unloading apparatus |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792573A (en) * | 1972-04-06 | 1974-02-19 | L Borsheim | Air cleaning structure |
-
1972
- 1972-04-06 US US00241587A patent/US3792573A/en not_active Expired - Lifetime
-
1974
- 1974-02-11 US US441284A patent/US3907529A/en not_active Expired - Lifetime
- 1974-08-16 AU AU72444/74A patent/AU7244474A/en not_active Expired
- 1974-10-03 CA CA210,661A patent/CA1016824A/en not_active Expired
- 1974-11-21 DE DE19742455118 patent/DE2455118A1/en active Pending
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1975
- 1975-02-10 FR FR7504036A patent/FR2260388B3/fr not_active Expired
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Publication number | Priority date | Publication date | Assignee | Title |
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US458773A (en) * | 1891-09-01 | Dust-separator | ||
US499468A (en) * | 1893-06-13 | Grain-separator | ||
US570443A (en) * | 1896-11-03 | Dust-collector | ||
US775664A (en) * | 1903-12-04 | 1904-11-22 | John F Ford | Dust separator and collector. |
US1720536A (en) * | 1926-06-16 | 1929-07-09 | Westinghouse Electric & Mfg Co | Heat exchanger |
US2343682A (en) * | 1938-11-14 | 1944-03-07 | Mccurdy Howard | Helical centrifugal separator |
US2316836A (en) * | 1939-12-15 | 1943-04-20 | Breuer Electric Mfg Co | Portable suction cleaner |
US2666632A (en) * | 1949-10-29 | 1954-01-19 | Kelly | Perlite popping furnace |
US2850162A (en) * | 1954-08-11 | 1958-09-02 | Buehler Ag Geb | Separators for pneumatically conveyed aggregate goods |
US3568414A (en) * | 1969-06-05 | 1971-03-09 | Donaldson Co Inc | Cleaning apparatus for fluid filters |
US3696591A (en) * | 1971-06-07 | 1972-10-10 | Novo Ind Corp | Air cleaner with improved unloading apparatus |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3907529A (en) * | 1972-04-06 | 1975-09-23 | Lewis A Borsheim | Air cleaning structure |
US3923481A (en) * | 1974-07-05 | 1975-12-02 | Turb O Jector Inc | Turb-o-air separator |
US4084839A (en) * | 1975-07-14 | 1978-04-18 | Nippon Soken, Inc. | Gas bag protection apparatus for vehicles |
US4028076A (en) * | 1975-08-18 | 1977-06-07 | Parma Industries, Inc. | Centrifugal air precleaner for internal combustion engines |
US4276171A (en) * | 1976-06-22 | 1981-06-30 | E. Beaudrey & Cie | Water filter having spiral casing |
US4218223A (en) * | 1977-11-25 | 1980-08-19 | Donaldson Company, Inc. | Pre-cleaner for combustion engines |
US4303423A (en) * | 1978-02-03 | 1981-12-01 | The United States Of America As Represented By The Secretary Of The Army | Engine air cleaner |
FR2468756A1 (en) * | 1979-11-06 | 1981-05-08 | Saab Scania Ab | AIR INTAKE CLEANING DEVICE FOR AN INTERNAL COMBUSTION ENGINE |
US4373940A (en) * | 1982-01-29 | 1983-02-15 | Medalie Manufacturing Co. | Air precleaner for internal combustion engine |
DE3615747A1 (en) * | 1986-05-09 | 1987-11-12 | Bielefeldt Ernst August | METHOD FOR SEPARATING AND / OR SEPARATING SOLID AND / OR LIQUID PARTICLES WITH A SPIRAL CHAMBER SEPARATOR WITH A SUBMERSIBLE TUBE AND SPIRAL CHAMBER SEPARATOR FOR CARRYING OUT THE METHOD |
US4801310A (en) * | 1986-05-09 | 1989-01-31 | Bielefeldt Ernst August | Vortex chamber separator |
US4895582A (en) * | 1986-05-09 | 1990-01-23 | Bielefeldt Ernst August | Vortex chamber separator |
EP0424079A1 (en) * | 1989-10-16 | 1991-04-24 | Elkem Technology A/S | Device for separating solid particles from a fluid |
US6641720B1 (en) | 1993-02-11 | 2003-11-04 | Stephen Crompton | Apparatus and methods for separating solids from flowing liquids or gases |
US6511595B2 (en) | 1993-02-11 | 2003-01-28 | Stephen Crompton | Apparatus and methods for separating solids from flowing liquids or gases |
US5503649A (en) * | 1994-03-04 | 1996-04-02 | Andreas Stihl | Air filter for an internal combustion engine |
US5788848A (en) * | 1994-06-17 | 1998-08-04 | Cds Tech Ltd | Apparatus and methods for separating solids from flowing liquids or gases |
US5505756A (en) * | 1995-03-17 | 1996-04-09 | American Farm Implement & Specialty, Inc. | Ramp discharge outlet air precleaner |
US20060117959A1 (en) * | 2002-10-02 | 2006-06-08 | Gjertsen Lars H | Scrubber |
US8066804B2 (en) * | 2002-10-02 | 2011-11-29 | Statoil Asa | Scrubber |
US20070234903A1 (en) * | 2003-10-17 | 2007-10-11 | Donaldson Company, Inc. | Precleaner arrangement for use in air filtration; method; and, air cleaner using same |
US7364601B2 (en) | 2003-10-17 | 2008-04-29 | Donaldson Company, Inc. | Precleaner arrangement for use in air filtration; method; and, air cleaner using same |
US20070056889A1 (en) * | 2005-09-09 | 2007-03-15 | Cds Technologies, Inc. | Apparatus for separating solids from flowing liquids |
US7465391B2 (en) | 2005-09-09 | 2008-12-16 | Cds Technologies, Inc. | Apparatus for separating solids from flowing liquids |
US20070287535A1 (en) * | 2006-05-23 | 2007-12-13 | Bally Gaming, Inc. | Systems, methods and articles to facilitate playing card games with selectable odds |
US20120318143A1 (en) * | 2010-01-14 | 2012-12-20 | Husqvarna Ab | Air Inlet System for an Internal Combustion Engine |
US9091235B2 (en) * | 2010-01-14 | 2015-07-28 | Husqvarna Ab | Air inlet system for an internal combustion engine |
DE112011100387B4 (en) | 2010-01-29 | 2022-07-14 | Donaldson Company, Inc. | Water separator assembly for use with an air cleaner, engine airflow inlet assembly, vehicle and method |
Also Published As
Publication number | Publication date |
---|---|
FR2260388B3 (en) | 1977-10-21 |
AU7244474A (en) | 1976-02-19 |
FR2260388A1 (en) | 1975-09-05 |
US3907529A (en) | 1975-09-23 |
CA1016824A (en) | 1977-09-06 |
DE2455118A1 (en) | 1975-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DAKOTA BANK AND TRUST CO. OF FARGO FRGO, NORTH DAK Free format text: SECURITY INTEREST;ASSIGNOR:BORSHEIM, LEWIS,;REEL/FRAME:003845/0430 Effective date: 19810407 |