CA2237212A1 - High performance automotive air intake - Google Patents
High performance automotive air intake Download PDFInfo
- Publication number
- CA2237212A1 CA2237212A1 CA 2237212 CA2237212A CA2237212A1 CA 2237212 A1 CA2237212 A1 CA 2237212A1 CA 2237212 CA2237212 CA 2237212 CA 2237212 A CA2237212 A CA 2237212A CA 2237212 A1 CA2237212 A1 CA 2237212A1
- Authority
- CA
- Canada
- Prior art keywords
- air
- filter
- engine
- set forth
- combination
- 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
Links
Classifications
-
- 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
- F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
-
- 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
- F02M35/024—Air cleaners using filters, e.g. moistened
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
Abstract
A high performance air intake forty an automotive engine has an oiled gauge filter of inverted conical form, including an inverted, shaped inner apex, the filter fitting within an in-line filter body that forms a part of a slender intake line.
The in-line form of the filter enables the pick-up of intake air from a cool zone below the engine, with little subsequent heating of the air, resulting in enhanced breathing of the engine, with observable performance enhancement.
The in-line form of the filter enables the pick-up of intake air from a cool zone below the engine, with little subsequent heating of the air, resulting in enhanced breathing of the engine, with observable performance enhancement.
Description
H I GH F'ERFOFiI"fAi~ICE AUTOMOT I VE A T Fi I NTAF~::E
EsACi~:GfiOUI~iD OF THE I IVVEI~IT I ON
1 . F I ELD OF THE I INVENT I ON
T-his invention is directed to an air filter-, and in particular to an air intake filter far- an automobile engine.
DESCFi I F'T I ON OF THE F'Fi I OR AFiT
In the operation of automobile engines, particularly in the case of high performance engines, a great deal of attention is focused on the "breathing" of the engine.
In the case of naturally aspirated, "unblown" engines, in which a supercharger i s absent , the ef f ect i ve i of 1 aw of ai r i nta the cyl i nders si gni f i cantl y i of 1 uences the perf or-manse of the engi ne For that reason much effort has focussed on the polishing of valve parts, the degree and timing of valve lift, tuning of the 1 ength of i ntak:e passages i n rel at i can to the 1 ocat i an of ai r flow pressure nodes etc, in order to aptimi~e air flaw.
To protect the engine against undue wear it is necessar--y to filter tire incoming air-, in order to remove abrasive particles that would polute and damage various portions of the engine.
Tn many instances, in high performance machines, a filter bo;, of generally rvectangular section is provided, having a filter of large cross-sectional area that produces law velocity air flow, with a small pr~esure drop across the filter element. This is thought to improve the breathing performance of the engine.
A major disadvantage of this arrangement is that the filter bo;;
is located high up in the engine compartment, and consequently is heated to a significant degree, sa as to form an effective heater- of t he sl ow movi ng ai r wi th i n the f i 1 ter bo:; , thereby effectively reducing the volumetric efficiency of the engine.
Rn e~: i st i ng f orm of ai r- f i 1 ter has a con i cal shaped f i 1 ter of accordion-pleated, air- permeable filter material. The conical filter is ar-anged with the ape:; of the cone located upstream, so that air flows from the outside of the cone, inwardly through the divergently inclined filter wall.
SUffi"(RF~Y OF THE I NVEhIT LCllV
The present invention provides an air filter for- use in an automobile air induction system, comprising a slender- -Filter housing having an inlet and an outlet in m»tual, substantially aligned relation; a filter comprising an air permeable wall of convergent form, forming a convergent, progresssively diminishing flow path within the permeable wall.
The use of a housing of substantially uniform cross section provides a divergent, progressively increasing flow path outside the filter wall, in use to receive air- from within the filtc-~r-, for passage to the engine.
In one ~mbadiment the filter air-per-meabla wall member comprises a substantially conical form, having the ape,, portion of the f i 1 ter- member- ad.~ acent the out l et , and the 1 arger d i ameter base portion adjacent the inlet, in use to receive incoming air within the conical form, for passage thereof omtwar-dly through the filter- wall tn the outlet.
In one embodiment of the filter an air guide is located within the cone adjacent the ape:; portion, in use to deflect incoming air- within the cane in a direction outwardly, through the wall.
A commercial conical filter of accordion-pleated cotton construction has been effectively used as the filter element, with a substantially hemispherical air guide located at the ape;.
The air- filter housing used may be substantially cylindrical.
The air filter can be used in combination with an air inlet pipe connected to a cool location in the vicinity of the engine, e.g. within the engine compartment.
In one embodiment, the air inlet comprises a drop pipe e;;tending downwardly to a cool location below the engine.
The o!.!tlet pipe from the filter to the engine throttle body connection of one embodiment is of a lesser diameterw than the air inlet pipe.
EfFi I EF DE~CFi I F'T I ON t?F THE DFiAIAi I hIG~
Certain embodiments of the present invention are described, by way of illustration, without limitation of the invention thereto other than as set forth in the claims hereof, reference being made to the accompanying drawings, wherein;
Figures 1 and ~ are schematic views in side elevation of Prior Art automotive air filter arrangements;
Figure ~ is a side elevation in part-section of a first embodiment of an air filter arrangement in accordance with the present invention.
DESCF, I F'T 1 Ot~! OF THE F'REFEFtRED EMB(7D I MEIVTS
F~eferring first to Figures 1 and ~, which are of the F'rior Arts In Figure Z, which shows a standard high performance car air intak:e,the filter housing is divided by a planar filter element of large area, through which the air passes, to exit by way of an air passage to the throttle body of the engine inta~::e system.
Fi gure ~ shows a eoni cal ai r f i 1 ter f i tted by way of a rwbber flange to the manifold inlet pipe, wherein the incoming air impinges on the outside surface of the filter element, passes inwardly thro!rgh the divergent conical filter wall, and exiis through the base of the element to the manifold pipe.
Turning to Figure ~, in an embodiment in accordance with the present invention an air filter it::r has a substantially cylindrical housing 1~ which contains a conical filter element 14. The filter element 14 is accordion pleated, being of cotton gauze material, and being washable.
In one embodiment, a filter element 14 of four and one quarter i nch base d i ameter t 1 C1~i ,~nm ) , by f i ve and one hal f i aches l ong t14« mm), and two inches diameter ( 51 mm) at the ape;, is located within a five inch diameter ti~i mm) horsing 1of polyearbonate plastic. The filterw element i4 inc7.udes a rwbber~
inlet sleeve connection of three inch diameter (ib.~ mml into which an aluminum inlet pipe ig of thrwee inch O. D. t?E~.mm) is i nserted. An outl et pipe ~~5 of si 1 i cone rubber of two and one half inches T.D.t64 mm) connects the outlet of housing 12 to the engine throttle body ~1.
A f 1 vw def 1 actor ~~ secured at the ape;; of the el ement 14 has been found to beneficially influence air throughput.
The deflector ' actually used comprised substantially about 21~~~ degrees of a hemi sphere of sensi bl y cane i nch di ameter (2~.4 mm).
In operation, with the subject air filter installed an a 1991 Honda Civic S.T. with a 4-cylinder 1.6 litre engine, the time to accelerate from ~s5 to 14s~ k:m per hour was 1~ seconds.
With the standard O~M filter, as illustrated in Figure 1, the same acceleration test took: 1:~ seconds, on the same course.
During the testing of this vehicle, fitted with the subject filter, the engine gave no indication of any "flat-spots", and appeared to develops more power across the full performance spectrwm, as compared with the DEM air filter. However the i=ime trial was a definitive, quantified test which demonstrated a power increase resulting from use of the invention.
Tt was observed in operation that the outlet pipe connecting the filter to the engine ran significantly cooler than that of the stock: car arrangement.
EsACi~:GfiOUI~iD OF THE I IVVEI~IT I ON
1 . F I ELD OF THE I INVENT I ON
T-his invention is directed to an air filter-, and in particular to an air intake filter far- an automobile engine.
DESCFi I F'T I ON OF THE F'Fi I OR AFiT
In the operation of automobile engines, particularly in the case of high performance engines, a great deal of attention is focused on the "breathing" of the engine.
In the case of naturally aspirated, "unblown" engines, in which a supercharger i s absent , the ef f ect i ve i of 1 aw of ai r i nta the cyl i nders si gni f i cantl y i of 1 uences the perf or-manse of the engi ne For that reason much effort has focussed on the polishing of valve parts, the degree and timing of valve lift, tuning of the 1 ength of i ntak:e passages i n rel at i can to the 1 ocat i an of ai r flow pressure nodes etc, in order to aptimi~e air flaw.
To protect the engine against undue wear it is necessar--y to filter tire incoming air-, in order to remove abrasive particles that would polute and damage various portions of the engine.
Tn many instances, in high performance machines, a filter bo;, of generally rvectangular section is provided, having a filter of large cross-sectional area that produces law velocity air flow, with a small pr~esure drop across the filter element. This is thought to improve the breathing performance of the engine.
A major disadvantage of this arrangement is that the filter bo;;
is located high up in the engine compartment, and consequently is heated to a significant degree, sa as to form an effective heater- of t he sl ow movi ng ai r wi th i n the f i 1 ter bo:; , thereby effectively reducing the volumetric efficiency of the engine.
Rn e~: i st i ng f orm of ai r- f i 1 ter has a con i cal shaped f i 1 ter of accordion-pleated, air- permeable filter material. The conical filter is ar-anged with the ape:; of the cone located upstream, so that air flows from the outside of the cone, inwardly through the divergently inclined filter wall.
SUffi"(RF~Y OF THE I NVEhIT LCllV
The present invention provides an air filter for- use in an automobile air induction system, comprising a slender- -Filter housing having an inlet and an outlet in m»tual, substantially aligned relation; a filter comprising an air permeable wall of convergent form, forming a convergent, progresssively diminishing flow path within the permeable wall.
The use of a housing of substantially uniform cross section provides a divergent, progressively increasing flow path outside the filter wall, in use to receive air- from within the filtc-~r-, for passage to the engine.
In one ~mbadiment the filter air-per-meabla wall member comprises a substantially conical form, having the ape,, portion of the f i 1 ter- member- ad.~ acent the out l et , and the 1 arger d i ameter base portion adjacent the inlet, in use to receive incoming air within the conical form, for passage thereof omtwar-dly through the filter- wall tn the outlet.
In one embodiment of the filter an air guide is located within the cone adjacent the ape:; portion, in use to deflect incoming air- within the cane in a direction outwardly, through the wall.
A commercial conical filter of accordion-pleated cotton construction has been effectively used as the filter element, with a substantially hemispherical air guide located at the ape;.
The air- filter housing used may be substantially cylindrical.
The air filter can be used in combination with an air inlet pipe connected to a cool location in the vicinity of the engine, e.g. within the engine compartment.
In one embodiment, the air inlet comprises a drop pipe e;;tending downwardly to a cool location below the engine.
The o!.!tlet pipe from the filter to the engine throttle body connection of one embodiment is of a lesser diameterw than the air inlet pipe.
EfFi I EF DE~CFi I F'T I ON t?F THE DFiAIAi I hIG~
Certain embodiments of the present invention are described, by way of illustration, without limitation of the invention thereto other than as set forth in the claims hereof, reference being made to the accompanying drawings, wherein;
Figures 1 and ~ are schematic views in side elevation of Prior Art automotive air filter arrangements;
Figure ~ is a side elevation in part-section of a first embodiment of an air filter arrangement in accordance with the present invention.
DESCF, I F'T 1 Ot~! OF THE F'REFEFtRED EMB(7D I MEIVTS
F~eferring first to Figures 1 and ~, which are of the F'rior Arts In Figure Z, which shows a standard high performance car air intak:e,the filter housing is divided by a planar filter element of large area, through which the air passes, to exit by way of an air passage to the throttle body of the engine inta~::e system.
Fi gure ~ shows a eoni cal ai r f i 1 ter f i tted by way of a rwbber flange to the manifold inlet pipe, wherein the incoming air impinges on the outside surface of the filter element, passes inwardly thro!rgh the divergent conical filter wall, and exiis through the base of the element to the manifold pipe.
Turning to Figure ~, in an embodiment in accordance with the present invention an air filter it::r has a substantially cylindrical housing 1~ which contains a conical filter element 14. The filter element 14 is accordion pleated, being of cotton gauze material, and being washable.
In one embodiment, a filter element 14 of four and one quarter i nch base d i ameter t 1 C1~i ,~nm ) , by f i ve and one hal f i aches l ong t14« mm), and two inches diameter ( 51 mm) at the ape;, is located within a five inch diameter ti~i mm) horsing 1of polyearbonate plastic. The filterw element i4 inc7.udes a rwbber~
inlet sleeve connection of three inch diameter (ib.~ mml into which an aluminum inlet pipe ig of thrwee inch O. D. t?E~.mm) is i nserted. An outl et pipe ~~5 of si 1 i cone rubber of two and one half inches T.D.t64 mm) connects the outlet of housing 12 to the engine throttle body ~1.
A f 1 vw def 1 actor ~~ secured at the ape;; of the el ement 14 has been found to beneficially influence air throughput.
The deflector ' actually used comprised substantially about 21~~~ degrees of a hemi sphere of sensi bl y cane i nch di ameter (2~.4 mm).
In operation, with the subject air filter installed an a 1991 Honda Civic S.T. with a 4-cylinder 1.6 litre engine, the time to accelerate from ~s5 to 14s~ k:m per hour was 1~ seconds.
With the standard O~M filter, as illustrated in Figure 1, the same acceleration test took: 1:~ seconds, on the same course.
During the testing of this vehicle, fitted with the subject filter, the engine gave no indication of any "flat-spots", and appeared to develops more power across the full performance spectrwm, as compared with the DEM air filter. However the i=ime trial was a definitive, quantified test which demonstrated a power increase resulting from use of the invention.
Tt was observed in operation that the outlet pipe connecting the filter to the engine ran significantly cooler than that of the stock: car arrangement.
Claims (12)
1. An air filter for use with an interval combustion engine air induction system, said filter comprising a slender filter housing having an inlet and an outlet in mutual, substantially aligned relation; a filter means comprising an air permeable wall of convergent form, forming a convergent, progresssively diminishing flow path within the permeable wall, in use to receive air within the filter wall, for outward passage through the filter wall to said engine.
2. The air filter as set forth in claim 1, said housing providing a divergent, progressively increasing flow path outside the filter wall.
3. The air filter as set forth in Claim 1, said filter means air-permeable wall having a substantially conical farm, with the apex portion of the filter member located adjacent the outlet of said housing, and the larger diameter base portion located adjacent the inlet of said housing, in use to receive incoming air within the conical form, for passage thereof outwardly through the filter wall to the outlet.
4. The air filter as set forth in Claim 3, having an inverted air guide located within said conical form adjacent said apex portion, in use to deflect incoming air within said cone in a direction outwardly, through said permeable wall.
5. The air filter as set forth in Claim 1, said housing being substantially cylindrical.
6. The air filter as set forth in Claim 1, in combination with an air inlet pipe connected to a cool location in the vicinity of said engine.
7. The air filter as set forth in Claim 1, 2 or 3 in combination with an air inlet pipe connected to a coal location in the vicinity of said engine.
8. The air filter as set forth in Claim 4 or 5, in combination with an air inlet pipe connected to a cool location in the vicinity of said engine.
9. The air filter and inlet pipe combination as set forth in Claim 6, said air inlet pipe being of predetermined first diameter, in combination with an air outlet pipe of a second, smaller diameter, to promote rapid flow of air from said filter to said engine, with minimal heat uptake to the air.
10. The air filter as set forth in Claim 1, claim 2 or claim 3, in combination with said engine.
11. The air filter as set forth in Claim 4, claim 2 or claim 6, in combination with said engine.
12. The air filter as set forth in Claim 9, in combination with said engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2237212 CA2237212A1 (en) | 1998-05-08 | 1998-05-08 | High performance automotive air intake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2237212 CA2237212A1 (en) | 1998-05-08 | 1998-05-08 | High performance automotive air intake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2237212A1 true CA2237212A1 (en) | 1999-11-08 |
Family
ID=29275691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2237212 Abandoned CA2237212A1 (en) | 1998-05-08 | 1998-05-08 | High performance automotive air intake |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2237212A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1621757A1 (en) * | 2004-07-29 | 2006-02-01 | Jui-Fa HUANG | Vertical-shaft air filtering device having high flow rate and two-way air intake structure |
-
1998
- 1998-05-08 CA CA 2237212 patent/CA2237212A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1621757A1 (en) * | 2004-07-29 | 2006-02-01 | Jui-Fa HUANG | Vertical-shaft air filtering device having high flow rate and two-way air intake structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5888260A (en) | High performance automotive air intake | |
| US4356806A (en) | Exhaust gas recirculation system | |
| US11179664B2 (en) | Cone air filter | |
| US6314949B1 (en) | Vehicle air induction system | |
| US20200217283A1 (en) | Mass airflow sensor and hydrocarbon trap combination | |
| EP0867608A3 (en) | Air intake apparatus for a four-cycle internal combustion engine | |
| EP1650426A3 (en) | Utility Vehicle | |
| US20070044750A1 (en) | High flow air filtration system | |
| US20230150354A1 (en) | Multiple inlet filtration system | |
| US20200318587A1 (en) | High performance air intake system | |
| CN108474327A (en) | Air cleaner | |
| US6491734B1 (en) | Air cleaner for internal combustion engine with internally formed air inlet pipe | |
| US5868808A (en) | Velocity stack filter | |
| CA2237212A1 (en) | High performance automotive air intake | |
| CN204239106U (en) | Gas-entered passageway baffler and gas-entered passageway silene system | |
| US2808893A (en) | Superchargers for engines of automotive vehicles | |
| US2362493A (en) | Apparatus for silencing and supercharging engine intakes | |
| CN104343592A (en) | Fluid flow pipeline | |
| JPWO2021200021A5 (en) | ||
| US5524585A (en) | Air cleaner housing | |
| US20200141368A1 (en) | Ejector Integrally Formed with an Intake Air Component and a Method to Manufacture | |
| JP7223679B2 (en) | engine intake system | |
| JP7247082B2 (en) | engine intake system | |
| JP2003502560A (en) | Intake device for internal combustion engine | |
| JPS587062Y2 (en) | Condensed water separation and discharge device for supercharged engines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |