CA1140082A - Vortical flow side outlet type air cleaner - Google Patents
Vortical flow side outlet type air cleanerInfo
- Publication number
- CA1140082A CA1140082A CA000365688A CA365688A CA1140082A CA 1140082 A CA1140082 A CA 1140082A CA 000365688 A CA000365688 A CA 000365688A CA 365688 A CA365688 A CA 365688A CA 1140082 A CA1140082 A CA 1140082A
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- Canada
- Prior art keywords
- outlet
- conduit member
- tubes
- side wall
- air cleaner
- 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.)
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Abstract
ABSTRACT
An improved air cleaner incorporating a plurality of side outlet cyclone separator tubes is disclosed. The air cleaner has a plurality of side outlet separator tubes aligned in parallel rows, adjacent rows disposed with the side outlets directed toward each other and off-set with respect to the side outlets of the adjacent row to define clean air exhaust channels within the air cleaner housing.
An improved air cleaner incorporating a plurality of side outlet cyclone separator tubes is disclosed. The air cleaner has a plurality of side outlet separator tubes aligned in parallel rows, adjacent rows disposed with the side outlets directed toward each other and off-set with respect to the side outlets of the adjacent row to define clean air exhaust channels within the air cleaner housing.
Description
~1 4~
BACKGROUND OF THE INVENTION
This is a division of application Serial No. 302,607 Eiled 4 May, 1978.
The present invention is directed to an improved air cleaner incorporating a plurality oE cyclone separator tubes such as those disclosed in the parent application of this divisional application. The cyclone separator tube of the parent application has a side outlet for clean air and improved means for generating a vortex in the axial flow of contaminant laden air through the separator tube.
The following discussion of the background of the invention relates not only to the invention disclosed in the present application but also to the invention disclosed in Application Serial No. 302,607 which is the parent application of this divisional application.
The prior art includes two basic types of cyclone separator tubes. In a straight-through axial flow separator tube, such as that disclosed in U.S. Patent 3,517l821, issued to Monson et al. on 30 June, 1970, contaminated air enters the separator tube and passes through a helical vane device which generates a vortex in the flow of the contaminant laden air. A
clean air outlet conduit is disposed near the outlet of the separator tube and concentrically positioned with respect to the tube. A contaminant output channel is defined by the exterior surface of the clean air outlet conduit and the inner surface of the separator tube. The contaminants are thrown outward toward the inner surface of the separator tube and are discharged through the defined channel. Clean air passes axially into the clean air outlet conduit. High flow rates are achieved in the straight-through axial flow separator tube by ` providing a scavenge air flow. The scavenage air flow facilitates the contaminant exhaust flow by minimizing turbulence and thereby permi-tting higher flow ra-tes within the separator tube.
Reverse flow cyclone separator tubes are disclosed in the prior art. Examples oE such separator tubes are disclosed in U.S. patent numbers:
3,517,821, issued to Monson et al. on 30 June, 1970;
3,498,461, issued to Iller on 3 March, 1970;
BACKGROUND OF THE INVENTION
This is a division of application Serial No. 302,607 Eiled 4 May, 1978.
The present invention is directed to an improved air cleaner incorporating a plurality oE cyclone separator tubes such as those disclosed in the parent application of this divisional application. The cyclone separator tube of the parent application has a side outlet for clean air and improved means for generating a vortex in the axial flow of contaminant laden air through the separator tube.
The following discussion of the background of the invention relates not only to the invention disclosed in the present application but also to the invention disclosed in Application Serial No. 302,607 which is the parent application of this divisional application.
The prior art includes two basic types of cyclone separator tubes. In a straight-through axial flow separator tube, such as that disclosed in U.S. Patent 3,517l821, issued to Monson et al. on 30 June, 1970, contaminated air enters the separator tube and passes through a helical vane device which generates a vortex in the flow of the contaminant laden air. A
clean air outlet conduit is disposed near the outlet of the separator tube and concentrically positioned with respect to the tube. A contaminant output channel is defined by the exterior surface of the clean air outlet conduit and the inner surface of the separator tube. The contaminants are thrown outward toward the inner surface of the separator tube and are discharged through the defined channel. Clean air passes axially into the clean air outlet conduit. High flow rates are achieved in the straight-through axial flow separator tube by ` providing a scavenge air flow. The scavenage air flow facilitates the contaminant exhaust flow by minimizing turbulence and thereby permi-tting higher flow ra-tes within the separator tube.
Reverse flow cyclone separator tubes are disclosed in the prior art. Examples oE such separator tubes are disclosed in U.S. patent numbers:
3,517,821, issued to Monson et al. on 30 June, 1970;
3,498,461, issued to Iller on 3 March, 1970;
- 2,889,008, issued to Copp et al. on 2 June, 1959, and 2,887,177, issued to Mund et al. on 19 May, 1959 which are assigned to the assignee of the present application.
In the reverse flow cyclone separator tube, a clean air outlet is concentrically disposed within the separator tube near the inlet end thereof. Flow deflecting vanes at the inlet of the separator tube again generate a vortex in the axial flow of contaminant laden air into the separator tube. The contaminants are discharged via straight-through axial flow.
Clean air, on the other hand, reverses its flow entering the clean air outlet conduit. The pressure drops experienced in the reverse flow cyclone separator tubes necessitate a clean air outlet conduit having a length at least as long and preferably greater than the length of the separator tube.
- Thus, the reverse flow devices are somewhat bulky and do not permit compact packaging within an air cleaner. Additionally, the reverse flow devices have lower throuyhput than straight-through axial cyclone separators. In an air cleaner housing, both prior art cyclone separator tubes, i.e.
straight-through flow or reverse flow, require substantial space for manifolding of clean air from the separator tubes to a final filter element.
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In -the above-mentioned U.S. Patent 3,517,821, issued to Monson et al. on 30 June, 1970, a helical vane vortex generating elemen-t is disclosed. This prior art vortex -- generating element includes a trailing end having a surface which tapers toward the clean air outlet conduit. It was found that with this vortex generating element structure some of the lighter contaminan-ts become entrapped at the inner periphery of the vortex and would enter the clean air outlet conduit, decreasing the efficiency of the contaminant separation.
The side outlet cyclone separator tube of the present invention combines the advantages of high flow rates and eficiency of a straight-through axial cyclone separator with the non-scavenge flow characteristics of a reverse flow cyclone separator. The side outlet cyclone tube also provides for reduced packaging requirements by minimizing the space required by the prior art devices for manifolding fluids from the separator tubes to the final filter. Additionally, the present invention incorporates an improved vane structure for generating a vortex in the flow of contaminant laden air that can also be utilized to increase the efficiency of the prior - art straight-through cyclone separator by directing contaminants trapped at the inner periphery of the vortex toward the side wall of the separator tube.
SUMMARY OF THE INVENTION
One embodimen-t of the separator tube disclosed in the parent application includes a first conduit member having a tubular portion proximate the inlet end of the tube and a second portion which has the shape of a frustum of a right oblique cone. The side outlet aperture is formed in the second portion which defines a converging contaminant discharge , passageway of decreasing cross-sectional area toward the outlet end of the separator tube. The second conduit member of the separator tube also has a diverying discharge passageway for clean air. This embodiment provides particular advantages when a plurality of such tubes are incorporated into an air cleaner structure.
The improved air cleaner of the present application incorporates the embodiment of the separator tube discussed above. The air cleaner includes a housing having inlet and outlet conduits and a pair of baffles secured within that housing to divide the housing into an inlet chamber, a dust collection chamber, and a clean air outlet chamber. A
plurality of separator tubes are connected between the baffles to provide fluid communication between the three chambers within the housing. In particular, the side outlet separator tubes are aligned in parallel rows with the side outlet apertures of the tubes in one row directed toward the tubes in an adjacent row. The side outlet apertures of one row are offset with respect to the side outlet apertures of the adjacent row to define clean air discharge channels within the clean air outlet chamber of the housing. An annular filter element is disposed within the clean air outlet chamber to provide a final filter stage before the clean air exits the housing.
Another embodiment of the separator tube disclosed in the parent application includes a first conduit which has a tubular portion defining the lnlet end of the separator tube and a frusto-conical portion defining the outlet end of the separator tube. The second conduit member defines a passageway having a curved central azis from its inlet end to a side .
outlet aperture in the tubular portion. The passageway defined by the second conduit member has a cross-sectional area taken along planes normal to its curved axes that increases gradually from its inlet end to the outelt aperture. The passageway of gradually increasing area diffuses the exhaust clean air allowing a recapture of the pressure drop experienced within the vortex generated by the separator tube.
The improved air cleaner may incorporate the second embodiment of the separator tube by arranging a plurality oE
such tubes in similar fashion to the conEiguration described above for the air cleaner incorporating the separator tubes oE
the other embodiment.
The advantages of the present invention will become apparent with reference to the detailed description of the preferred embodiment, drawings and claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The following brief description of tne drawings 20 relates to the present application and also to Application Serial No. 302,607 filed on 4 May, 1978, which is the parent application of the present divisional application.
; FIGURE 1 is a view in perspective of one embodiment of the side outlet separator tube disclosed in the parent application;
FIGURE 2 is a plan view of -the inlet end of the ; separator tube shown in Figure l;
FIGURE 3 is a sectional view of an improved air cleaner incorpora-ting the separator tube shown in Figure l;
: !
FIGURE 4 is an enlarged fragmentary cross-sectional view illustrating the separator tube of Figure 1 taken along line 4-4 of Figure 3;
FIGURE 5 is an enlarged cross-sectional view of a portion of Figure 3 taken along line 5-5 of Figure 3;
FIGURE 6 is a view in perspective of an alternative embodiment of the side outlet separator tube disclosed in the parent application;
FIGURE 7 is an enlarged cross-sectional view of the separator tube shown in Figure 6 taken along line 7-7 of Figure 6;
FIGURE 8 is an axial sectional view of a prior art reverse flow cyclone separator tube;
FIGURE 9 is an axial sectional view of a prior art straight-through axial cyclone separator tube;
FIGURE 10 is a view in perspective of -the improved vortex generating device disclosed in the parent application as viewed from above;
FIGURE 11 is another view in perspective of the vortex generating device disclosed in the parent application as viewed from below;
FIGURE 12 is an axial sectional view illustrating the improved vortex generating device as utilized in a prior art straight-through axial cyclone separator tube.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Application Serial No. 302,607, which is the parent application of this divisional application, discloses two embodiments of a separator tube.
Figures 3 and 5 illustrate an air cleaner 112 utilizing a plurality of separator tubes 10 as disclosed in the 4~1!3z one embodiment of the invention disclosed in the parent application. Air cleaner 112 has a housing 114 provided with an inlet conduit 116 and an outlet conduit 118. Secured within housing 114 is a first baffle member 120 which has a cylindrical side wall 112 and a circular base 124 which define a contaminant laden air inlet chamber 126 within housing 114.
A second baffle member 128 is also secured within housing 114 and has a cylindrical side wall 130 and a circular base 132 defining a contaminant collection chamber 134. First baffle member 120 and second baffle member 128 further de:Eine a clean air outlet chamber 136 in housing 114.
Separator tubes 10 provide Eor fluid communication between chambers 126, 134, and 136. As shown more particularly in the enlarged view of Figure 5, circular base 124 has a plurality of apertures which receive inlet ends 16 of separator tubes 10. Base 132 is also provided with a plurality of apertures through which outlet ends 18 of tubes 10 are inserted. As shown in Figure 3, annular flange 20 and ramp-like projections 22 on each separator tube 10 acilitate mounting of separator tubes 10 in base members 124 and 132, respectively. Passageway 64 provides fluid communication between inlet chamber 126 and collection chamber 134. Side outlet openings 46 of separator tubes 10 provide fluid communication between inlet chamber 126 and outlet chamber 136.
Disposed within outlet chamber 136 is an annular filter element 138 which serves as a final filter stage for air which exits openings 46, passes through filter element 138 and into outlet conduit 118.
As shown in Figures 3 and 5, separator tubes 10 are aligned in parallel rows, A, B, C, D and E. In Figure 5, the 4008~
, arrows indicate the direction of flow through side openings 46 in separator tubes 10. As illustrated, tubes 10 in adjacent rows, Eor example rows B and C, have their outlet openings 46 disposed so that air exiting openings 46 of tubes 10 in row B
is directed toward row C, and vice-versa. It will also be noted that outlet openings 46 of tubes 10 in one row are offest with respect to outlet openings 46 of tubes 10 in the adjacent row. This alignment of separator tubes 10 defines a plurality of outlet air channels as indicated at 140 within outlet chamber 136. Outlet air channels 140 have longitudinal axes that are generally transverse with respect to the longitudinal axis of air cleaner 112, and outlet air channels 140 increase the efficiency of air cleaner 112 by facilitating the exhaust of clean air and consequen-tly permitting higher flow rates.
The offset alignment substantially eliminates turbulent flow . within channels 1~0.
r Separator tubes 10 may be utilized in air cleaner 112. Contaminant laden air enters inlet chamber 126 and is channeled by baffle member 120 into the plurality of separator tubes 10. Contaminants are discharged through outlet ends 18 into contaminant collection chamber 134. Clean air exhausts : through side outlet openings 46 into outlet chamber 136. The clean air passes through a final stage comprising annular filter element 138 before passing from air cleaner 112 through outlet conduit 118. As previously men-tioned, outlet air channels 140 defined between adjacen-t parallel rows of separator tubes 10 facilitate the flow of clean air into chamber 136.
The invention may be embodied in other specific forms without departing from the spirit or essential characteristics )0P~2 - thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended : claims rather than by the foregoing description, and all changes coming within the meaning and range of the equivalency of the claims are therefore intended to be embraced therein.
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In the reverse flow cyclone separator tube, a clean air outlet is concentrically disposed within the separator tube near the inlet end thereof. Flow deflecting vanes at the inlet of the separator tube again generate a vortex in the axial flow of contaminant laden air into the separator tube. The contaminants are discharged via straight-through axial flow.
Clean air, on the other hand, reverses its flow entering the clean air outlet conduit. The pressure drops experienced in the reverse flow cyclone separator tubes necessitate a clean air outlet conduit having a length at least as long and preferably greater than the length of the separator tube.
- Thus, the reverse flow devices are somewhat bulky and do not permit compact packaging within an air cleaner. Additionally, the reverse flow devices have lower throuyhput than straight-through axial cyclone separators. In an air cleaner housing, both prior art cyclone separator tubes, i.e.
straight-through flow or reverse flow, require substantial space for manifolding of clean air from the separator tubes to a final filter element.
.
In -the above-mentioned U.S. Patent 3,517,821, issued to Monson et al. on 30 June, 1970, a helical vane vortex generating elemen-t is disclosed. This prior art vortex -- generating element includes a trailing end having a surface which tapers toward the clean air outlet conduit. It was found that with this vortex generating element structure some of the lighter contaminan-ts become entrapped at the inner periphery of the vortex and would enter the clean air outlet conduit, decreasing the efficiency of the contaminant separation.
The side outlet cyclone separator tube of the present invention combines the advantages of high flow rates and eficiency of a straight-through axial cyclone separator with the non-scavenge flow characteristics of a reverse flow cyclone separator. The side outlet cyclone tube also provides for reduced packaging requirements by minimizing the space required by the prior art devices for manifolding fluids from the separator tubes to the final filter. Additionally, the present invention incorporates an improved vane structure for generating a vortex in the flow of contaminant laden air that can also be utilized to increase the efficiency of the prior - art straight-through cyclone separator by directing contaminants trapped at the inner periphery of the vortex toward the side wall of the separator tube.
SUMMARY OF THE INVENTION
One embodimen-t of the separator tube disclosed in the parent application includes a first conduit member having a tubular portion proximate the inlet end of the tube and a second portion which has the shape of a frustum of a right oblique cone. The side outlet aperture is formed in the second portion which defines a converging contaminant discharge , passageway of decreasing cross-sectional area toward the outlet end of the separator tube. The second conduit member of the separator tube also has a diverying discharge passageway for clean air. This embodiment provides particular advantages when a plurality of such tubes are incorporated into an air cleaner structure.
The improved air cleaner of the present application incorporates the embodiment of the separator tube discussed above. The air cleaner includes a housing having inlet and outlet conduits and a pair of baffles secured within that housing to divide the housing into an inlet chamber, a dust collection chamber, and a clean air outlet chamber. A
plurality of separator tubes are connected between the baffles to provide fluid communication between the three chambers within the housing. In particular, the side outlet separator tubes are aligned in parallel rows with the side outlet apertures of the tubes in one row directed toward the tubes in an adjacent row. The side outlet apertures of one row are offset with respect to the side outlet apertures of the adjacent row to define clean air discharge channels within the clean air outlet chamber of the housing. An annular filter element is disposed within the clean air outlet chamber to provide a final filter stage before the clean air exits the housing.
Another embodiment of the separator tube disclosed in the parent application includes a first conduit which has a tubular portion defining the lnlet end of the separator tube and a frusto-conical portion defining the outlet end of the separator tube. The second conduit member defines a passageway having a curved central azis from its inlet end to a side .
outlet aperture in the tubular portion. The passageway defined by the second conduit member has a cross-sectional area taken along planes normal to its curved axes that increases gradually from its inlet end to the outelt aperture. The passageway of gradually increasing area diffuses the exhaust clean air allowing a recapture of the pressure drop experienced within the vortex generated by the separator tube.
The improved air cleaner may incorporate the second embodiment of the separator tube by arranging a plurality oE
such tubes in similar fashion to the conEiguration described above for the air cleaner incorporating the separator tubes oE
the other embodiment.
The advantages of the present invention will become apparent with reference to the detailed description of the preferred embodiment, drawings and claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The following brief description of tne drawings 20 relates to the present application and also to Application Serial No. 302,607 filed on 4 May, 1978, which is the parent application of the present divisional application.
; FIGURE 1 is a view in perspective of one embodiment of the side outlet separator tube disclosed in the parent application;
FIGURE 2 is a plan view of -the inlet end of the ; separator tube shown in Figure l;
FIGURE 3 is a sectional view of an improved air cleaner incorpora-ting the separator tube shown in Figure l;
: !
FIGURE 4 is an enlarged fragmentary cross-sectional view illustrating the separator tube of Figure 1 taken along line 4-4 of Figure 3;
FIGURE 5 is an enlarged cross-sectional view of a portion of Figure 3 taken along line 5-5 of Figure 3;
FIGURE 6 is a view in perspective of an alternative embodiment of the side outlet separator tube disclosed in the parent application;
FIGURE 7 is an enlarged cross-sectional view of the separator tube shown in Figure 6 taken along line 7-7 of Figure 6;
FIGURE 8 is an axial sectional view of a prior art reverse flow cyclone separator tube;
FIGURE 9 is an axial sectional view of a prior art straight-through axial cyclone separator tube;
FIGURE 10 is a view in perspective of -the improved vortex generating device disclosed in the parent application as viewed from above;
FIGURE 11 is another view in perspective of the vortex generating device disclosed in the parent application as viewed from below;
FIGURE 12 is an axial sectional view illustrating the improved vortex generating device as utilized in a prior art straight-through axial cyclone separator tube.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Application Serial No. 302,607, which is the parent application of this divisional application, discloses two embodiments of a separator tube.
Figures 3 and 5 illustrate an air cleaner 112 utilizing a plurality of separator tubes 10 as disclosed in the 4~1!3z one embodiment of the invention disclosed in the parent application. Air cleaner 112 has a housing 114 provided with an inlet conduit 116 and an outlet conduit 118. Secured within housing 114 is a first baffle member 120 which has a cylindrical side wall 112 and a circular base 124 which define a contaminant laden air inlet chamber 126 within housing 114.
A second baffle member 128 is also secured within housing 114 and has a cylindrical side wall 130 and a circular base 132 defining a contaminant collection chamber 134. First baffle member 120 and second baffle member 128 further de:Eine a clean air outlet chamber 136 in housing 114.
Separator tubes 10 provide Eor fluid communication between chambers 126, 134, and 136. As shown more particularly in the enlarged view of Figure 5, circular base 124 has a plurality of apertures which receive inlet ends 16 of separator tubes 10. Base 132 is also provided with a plurality of apertures through which outlet ends 18 of tubes 10 are inserted. As shown in Figure 3, annular flange 20 and ramp-like projections 22 on each separator tube 10 acilitate mounting of separator tubes 10 in base members 124 and 132, respectively. Passageway 64 provides fluid communication between inlet chamber 126 and collection chamber 134. Side outlet openings 46 of separator tubes 10 provide fluid communication between inlet chamber 126 and outlet chamber 136.
Disposed within outlet chamber 136 is an annular filter element 138 which serves as a final filter stage for air which exits openings 46, passes through filter element 138 and into outlet conduit 118.
As shown in Figures 3 and 5, separator tubes 10 are aligned in parallel rows, A, B, C, D and E. In Figure 5, the 4008~
, arrows indicate the direction of flow through side openings 46 in separator tubes 10. As illustrated, tubes 10 in adjacent rows, Eor example rows B and C, have their outlet openings 46 disposed so that air exiting openings 46 of tubes 10 in row B
is directed toward row C, and vice-versa. It will also be noted that outlet openings 46 of tubes 10 in one row are offest with respect to outlet openings 46 of tubes 10 in the adjacent row. This alignment of separator tubes 10 defines a plurality of outlet air channels as indicated at 140 within outlet chamber 136. Outlet air channels 140 have longitudinal axes that are generally transverse with respect to the longitudinal axis of air cleaner 112, and outlet air channels 140 increase the efficiency of air cleaner 112 by facilitating the exhaust of clean air and consequen-tly permitting higher flow rates.
The offset alignment substantially eliminates turbulent flow . within channels 1~0.
r Separator tubes 10 may be utilized in air cleaner 112. Contaminant laden air enters inlet chamber 126 and is channeled by baffle member 120 into the plurality of separator tubes 10. Contaminants are discharged through outlet ends 18 into contaminant collection chamber 134. Clean air exhausts : through side outlet openings 46 into outlet chamber 136. The clean air passes through a final stage comprising annular filter element 138 before passing from air cleaner 112 through outlet conduit 118. As previously men-tioned, outlet air channels 140 defined between adjacen-t parallel rows of separator tubes 10 facilitate the flow of clean air into chamber 136.
The invention may be embodied in other specific forms without departing from the spirit or essential characteristics )0P~2 - thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended : claims rather than by the foregoing description, and all changes coming within the meaning and range of the equivalency of the claims are therefore intended to be embraced therein.
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Claims (10)
1. An air cleaner comprising:
(a) a housing having a longitudinal axis, a contaminant laden air inlet and a clean air outlet;
(b) baffle means affixed within said housing and dividing said housing into an inlet chamber, an outlet chamber, and a contaminant trap chamber;
(c) a plurality of side outlet separator tubes secured to said baffle means, each of said separator tubes having a continuous side wall defining an axial passageway between an inlet end opening into said inlet chamber and an outlet end opening into said trap chamber, said side wall having a side outlet aperture opening into said outlet chamber, said separator tubes disposed within said housing in parallel rows, said axes of said tubes parallel to said longitudinal axis of said housing, the axis of tubes in a row lying in a common plane, said tubes in at least two adjacent rows disposed so that said side outlet apertures of said tubes in each row face generally toward said side outlet apertures of said tubes in said adjacent row, said side outlet apertures in said tubes in one row offset with respect to said side outlet apertures in said tubes in said adjacent row, said side outlet apertures in said side wall in said adjacent rows defining a clean air channel between said tubes, said channel having an axis orthogonally oriented with respect to said longitudinal axis of said housing;
(d) means within each of said separator tubes at said inlet ends thereof for generating a vortex in the axial flow of contaminant laden air whereby said contaminants are directed toward said side walls and deposited within said trap chamber;
and (e) means disposed within said separator tube for collecting clean air and channeling said clean air through said side outlet aperture.
(a) a housing having a longitudinal axis, a contaminant laden air inlet and a clean air outlet;
(b) baffle means affixed within said housing and dividing said housing into an inlet chamber, an outlet chamber, and a contaminant trap chamber;
(c) a plurality of side outlet separator tubes secured to said baffle means, each of said separator tubes having a continuous side wall defining an axial passageway between an inlet end opening into said inlet chamber and an outlet end opening into said trap chamber, said side wall having a side outlet aperture opening into said outlet chamber, said separator tubes disposed within said housing in parallel rows, said axes of said tubes parallel to said longitudinal axis of said housing, the axis of tubes in a row lying in a common plane, said tubes in at least two adjacent rows disposed so that said side outlet apertures of said tubes in each row face generally toward said side outlet apertures of said tubes in said adjacent row, said side outlet apertures in said tubes in one row offset with respect to said side outlet apertures in said tubes in said adjacent row, said side outlet apertures in said side wall in said adjacent rows defining a clean air channel between said tubes, said channel having an axis orthogonally oriented with respect to said longitudinal axis of said housing;
(d) means within each of said separator tubes at said inlet ends thereof for generating a vortex in the axial flow of contaminant laden air whereby said contaminants are directed toward said side walls and deposited within said trap chamber;
and (e) means disposed within said separator tube for collecting clean air and channeling said clean air through said side outlet aperture.
2. An air cleaner in accordance with claim 1 wherein said side outlet separator tubes further comprise:
a first tubular portion at said inlet end thereof; and a frustum of a hollow oblique cone portion, said frustum portion having a continuous side wall which converges along said axis from said first tubular portion to said outlet end, said aperture formed in said converging side wall and said frustum portion defining an axial flow passageway of decreasing cross-sectional area from said tubular portion to said outlet end.
a first tubular portion at said inlet end thereof; and a frustum of a hollow oblique cone portion, said frustum portion having a continuous side wall which converges along said axis from said first tubular portion to said outlet end, said aperture formed in said converging side wall and said frustum portion defining an axial flow passageway of decreasing cross-sectional area from said tubular portion to said outlet end.
3. An air cleaner in accordance with claim 1 wherein said vortex generating means further comprises:
(a) an elongated hub member having a leading end and a trailing end;
(b) a plurality of vortex generating vanes spaced radially about and affixed to said hub, said vanes having surfces which impart a circular flow component to said contaminant laden air whereby contaminants are centrifugally thrown against said inner surface of said first conduit member; and (c) said trailing end of said hub member having a surface which curves radially outward with respect to said axis for directing contaminant laden air against said inner surface of said first conduit member.
(a) an elongated hub member having a leading end and a trailing end;
(b) a plurality of vortex generating vanes spaced radially about and affixed to said hub, said vanes having surfces which impart a circular flow component to said contaminant laden air whereby contaminants are centrifugally thrown against said inner surface of said first conduit member; and (c) said trailing end of said hub member having a surface which curves radially outward with respect to said axis for directing contaminant laden air against said inner surface of said first conduit member.
4. An air cleaner in accordance with claim 1 wherein said collecting means further comprises a second conduit member having a continuous side wall with inner and outer surfaces and defining a passageway between an outlet end terminating at said aperture in said side wall and an inlet end disposed within said axial passageway proximate said inlet end of said first conduit member and spaced apart from said trailing end in a direction along said axial passageway toward said outlet end of said first conduit member.
5. An air cleaner in accordance with claim 4 further comprising baffle means affixed to said outer surface of said second conduit member proximate said inlet end thereof, said baffle means comprising at least one annular lip.
6. An air cleaner in accordance with claim 1 wherein each of said outlet separator tubes has (a) a first conduit member having a continuous side wall and an inner surface defining a generally axial passageway between inlet and outlet ends thereof, said continuous side wall having an aperture disposed intermediate said inlet and outlet;
(b) a second conduit member having a continuous side wall and inner and outer surfaces defining a passageway between an inlet end disposed within said axial passageway proximate said inlet end of said first conduit member and an outlet end terminating at said aperture, said second conduit member having a curved central axis with the inside diameter thereof measured along planes normal to said central axis gradually increasing from said inlet end of said second conduit member to said outlet aperture;
(c) vortex generating means affixed to said first conduit member within said axial passageway at said inlet end thereof whereby a circular flow component is imparted to the axial flow of said contaminant-laden air such that contaminants are centrifugally blown toward said inner surface of said first conduit member to exit through said outlet end thereof, while clean air is channeled through said second conduit member to discharge through said aperture in said side wall of said first conduit member; and (d) baffle means affixed to said outer surface of said second conduit member proximate said inlet end thereof to prevent the reverse flow of contaminants into said inlet end of said second conduit member.
(b) a second conduit member having a continuous side wall and inner and outer surfaces defining a passageway between an inlet end disposed within said axial passageway proximate said inlet end of said first conduit member and an outlet end terminating at said aperture, said second conduit member having a curved central axis with the inside diameter thereof measured along planes normal to said central axis gradually increasing from said inlet end of said second conduit member to said outlet aperture;
(c) vortex generating means affixed to said first conduit member within said axial passageway at said inlet end thereof whereby a circular flow component is imparted to the axial flow of said contaminant-laden air such that contaminants are centrifugally blown toward said inner surface of said first conduit member to exit through said outlet end thereof, while clean air is channeled through said second conduit member to discharge through said aperture in said side wall of said first conduit member; and (d) baffle means affixed to said outer surface of said second conduit member proximate said inlet end thereof to prevent the reverse flow of contaminants into said inlet end of said second conduit member.
7. An air cleaner in accordance with claim 6 wherein said side outlet separator tubes further comprise:
a first tubular portion at said inlet end thereof;
and a frustum of a hollow oblique cone portion, said frustum portion having a continuous side wall which converges along said axis from said first tubular portion to said outlet end, said aperture formed in said converging side wall and said frustum portion defining an axial flow passageway of decreasing cross-sectional area from said tubular portion to said outlet end.
a first tubular portion at said inlet end thereof;
and a frustum of a hollow oblique cone portion, said frustum portion having a continuous side wall which converges along said axis from said first tubular portion to said outlet end, said aperture formed in said converging side wall and said frustum portion defining an axial flow passageway of decreasing cross-sectional area from said tubular portion to said outlet end.
8. An air cleaner in accordance with claim 7 wherein said vortex generating means further comprises:
an elongated hub member having a leading end and a trailing end;
a plurality of vortex generating vanes spaced radially about and affixed to said hub, said vanes having surfaces which impart a circular flow component to said contaminant laden air whereby contaminants are centrifugally thrown against said inner surface of said first conduit member and said trailing end of said hub member having a surface which curves radially outward with respect to said axis for directing contaminant laden air against said inner surface of said first conduit member.
an elongated hub member having a leading end and a trailing end;
a plurality of vortex generating vanes spaced radially about and affixed to said hub, said vanes having surfaces which impart a circular flow component to said contaminant laden air whereby contaminants are centrifugally thrown against said inner surface of said first conduit member and said trailing end of said hub member having a surface which curves radially outward with respect to said axis for directing contaminant laden air against said inner surface of said first conduit member.
9. An air cleaner in accordance with claim 8 wherein said collecting means further comprises a second conduit member having a continuous side wall with inner and outer surfaces and defining a passageway between an outlet end terminating at said aperture in said side wall and an inlet end disposed within said axial passageway proximate said inlet end of said first conduit member and spaced apart from said trailing end in a direction along said axial passageway toward said outlet end of said first conduit member.
10. An air cleaner in accordance with claim 9 further comprising baffle means affixed to said outer surface of said second conduit member proximate said inlet end thereof, said baffle means comprising at least one annular lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000365688A CA1140082A (en) | 1977-05-05 | 1980-11-27 | Vortical flow side outlet type air cleaner |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US794,045 | 1977-05-05 | ||
| US05/794,045 US4162906A (en) | 1977-05-05 | 1977-05-05 | Side outlet tube |
| CA302,607A CA1096814A (en) | 1977-05-05 | 1978-05-04 | Side outlets for vortex finders |
| CA000365688A CA1140082A (en) | 1977-05-05 | 1980-11-27 | Vortical flow side outlet type air cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1140082A true CA1140082A (en) | 1983-01-25 |
Family
ID=27165643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000365688A Expired CA1140082A (en) | 1977-05-05 | 1980-11-27 | Vortical flow side outlet type air cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1140082A (en) |
-
1980
- 1980-11-27 CA CA000365688A patent/CA1140082A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |