GB2496152A - An air filter unit for a motor vehicle - Google Patents

An air filter unit for a motor vehicle Download PDF

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Publication number
GB2496152A
GB2496152A GB1118918.0A GB201118918A GB2496152A GB 2496152 A GB2496152 A GB 2496152A GB 201118918 A GB201118918 A GB 201118918A GB 2496152 A GB2496152 A GB 2496152A
Authority
GB
United Kingdom
Prior art keywords
air
filter unit
text
air filter
housing
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.)
Withdrawn
Application number
GB1118918.0A
Other versions
GB201118918D0 (en
Inventor
Israel Garcia Sanchez
Daisuke Takada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Manufacturing UK Ltd
Original Assignee
Nissan Motor Manufacturing UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Manufacturing UK Ltd filed Critical Nissan Motor Manufacturing UK Ltd
Priority to GB1118918.0A priority Critical patent/GB2496152A/en
Publication of GB201118918D0 publication Critical patent/GB201118918D0/en
Priority to EP20120189759 priority patent/EP2589783B1/en
Publication of GB2496152A publication Critical patent/GB2496152A/en
Withdrawn legal-status Critical Current

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
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
    • 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
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • 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
    • F02M35/02—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
    • F02M35/042—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices combined with other devices, e.g. heaters ; for use other than engine air intake cleaning, e.g. air intake filters arranged in the fuel vapour recovery system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

An air filter unit is provided for mounting on an engine E of a motor vehicle. A housing 11 of the air filter unit includes an inlet 13, an outlet 14 with a first flow path between the inlet 13 and the outlet 14 and an air filtering means located between in the flow path between the inlet 13 and the outlet 14. The housing further accommodates a second through-path 12 for a duct IC1 associated with another engine component such as a turbocharger or intercooler. The arrangement enables a greater height of the air filter unit in the confined space of an engine bay. The duct IC1 may be perpendicular to the passage between the air filter inlet 13 and outlet 14.

Description

An Air Filter Unit for a Motor Vehicle The present invention relates to an air filter unit for a motor vehicle, particularly a compact vehicle with an intercooler system where there is limited free space in an engine bay.
In the design of a compact vehicle, it is commonplace to locate an air cleaner/filter unit nn top of the engine tO where there is more space available than in other areas in the engine bay. However, even in this location space is limited, particularly because ducting to an intercooler is often routed over the top of the engine from a turbocharger to which the air filter unit is connected.
It is known that the effectiveness of an air filter unit is related to its depth. Therefore, any attempt to reduce the depth of an air filter unit to meet space constraints can result in an increase in engine air intake noise if the housing is made smaller; and to more frequent maintenance being required if the filter element is made smaller. Constriction of the air intake passage below its optimum size can also reduce the engine's efficiency, resulting in a lower power output; and also an increase in fuel consumption, and therefore in CC2 emissions.
Ihe present invention seeks to provide an air filter unit that will allow for improved performance within the space constraints of existing engine designs.
In a broad aspect the invention provides an air filter unit for a motor vehicle, the air filter unit comprising a housing for mounting on an engine of the motor vehicle, said housing including an air inlet and an air outlet, and being capable of accommodating an air filtering means between the air inlet and the air outlet, wherein the housing further accommodates a through-path for a conduit associated with another component of the engine.
In the context of the invention "conduit" refers to any fluid carrying component, pipe, duot or the like.
tO Furthermore, the word "housing" is considered to be equivalent in the oontext of the air filter unit to "casing".
Preferably the through-path is located downstream of air filtering means in the direction of flow of air passing through the air filter unit.
Preferably the conduit asscoiated with the through-path is a pipe or duct carrying air from a turbocharger to an intercooler. Preferably the conduit in the through-path is integrated into the housing of the air filter unit.
Such integration may be by means of seals made of rubber or other suitable material, which take up tolerances or fill any gaps between the conduit and the housing, so that the housing is leak free at the joints between the housing and the conduit.
Advantageously, where the conduit is integrated with the housing, this reduces the number of components and simplifies assembly.
In a preferred embodiment of the invention, the through-path/conduit is located to cross the housing generally perpendicularly to the direction of flow of air between the air inlet and the air outlet.
It is intended to select a cassette/cartridge type air filtering element to enable ease of serviceability.
Furthermore, it is intended to separate the air filtering side of the housing from the conduit acccmmodating side tc avoid welding and sealing broken parts that may result from the hot temperarures of the turbocharger air carried tO by the conduit.
In another broad aspect of the invention there is provided an air filter unit for a motor vehicle engine, the air filter unit including an inlet and an outlet defining, in use, a first air flow path between the inlet and the outlet, and further including an integrated conduit means through the air filter unit, said conduit means defining a second flow path, not being in fluid communication with the first air flow path.
According to one embodiment, suitable ducting (or another component such as a silencer) is connected at each end of the integrated conduit to form a connection between a turbocharger and an intercooler of the engine.
Furthermore, according to the invention, there is provided a method of installing an air filter unit on a motor vehicle engine, wherein the air filter unit includes a housing with an air inlet and an air outlet, and is capable of accommodating an air filtering means between the air inlet and the air outlet, the method comprising connecting air flow lines to a conduit means passing through the housing, said conduit means being sealed from communication with air passing through the air filtering means.
According to all aspects of the invention, the air filter unit of the invention integrates therethrough a conduit/pipe (preferably associated with the turbocharger/intercooler) such that the height of the air filter unit can be increased compared to a conventional air filter unit that must be located above the tO intercooler conduit, within the same engine bay space.
The most preferred embodiment of the invention involves integrating a conduit means through the housing, each end of which can be connected to a turbocharger and to an intercooler respectively. However, alternative ways of accommodating a conduit may be possible such as forming a hole in opposing side walls of the housing and passing a conduit therethrough with suitable sealing to prevent leakage of air passing through the filter, or providing a passageway through which a conduit can be passed.
An air filter unit according to the invention can result in reducing the overall number of parts, and simplifying assembly of the engine and its accessories, while improving performance of the engine.
An air filter unit according to the present invention will be described hereinafter with reference to the accompanying drawings, in which:-Figures 1 to 3 illustrate various views of an existing, i.e. prior art, compact vehicle engine and its components for general reference; Figure 4 illustrates a sectional view of an air filter unit according to the invention fitted to an engine; Figures 5a to 5c illustrate schematic views of the air filter unit according to the invention; and Figure 6 illustrates a general side view of an embodiment of the air filter unit casing according to the invention.
tO Figure 1 shows an existing compact vehicle engine F that includes an intercooler IC located at a frontal position of the engine, an air filter unit F located atop the engine and a turbocharger T located behind the engine (not fully visible in the illustration) . The air filter unit is intended to remove particulates from fresh air before it is directed into the turbocharger.
A first intercooler duct 101, leading underneath air filter unit F, delivers hot air from the turbocharger T into intercooler IC; while a second intercooler duct 102 delivers dense air from the intercooler into the engine F. Figures 2 and 3 show plan and section (along line A-A) views respectively of a part of the engine E, adjacent air filter unit F and intercooler duct 101. In Figure 3 it is shown clearly that, in an existing engine F, the air filter unit F is secured (by suitable means, e.g. clips) on the topside of the engine, above duct 101.
By contrast, Figure 4 illustrates an engine F arrangement incorporating an air filter unit 10 according to the invention wherein a housing 11 of the air filter unit includes a passage 12 into which intercooler duct 101 has been integrated. It will be apparent that housing 11 encloses duct 101 above and below and hence, overall, has a larger cross sectional area (depth) than the air filter F of Figure 3.
Figures 5a to 5c schematically illustrate an air filter according to the invention as outlined by Figure 4.
Figure 5a shows a plan view of the air filter unit 10 where the air inlet 13 and air outlet 14 are generally tO visible, defining a flow of air (AIR1) to be directed through a filtering means 15 as shown in Figure 5b.
Clean air (AIR2) that exits the outlet 14 is routed by a suitable duct to a turbocharger T. After compression by turbocharger T, air is directed back toward the air filter unit housing 11, preferably via a silencer S. A second cross-flow path of air (ATR3) is defined leading from the turbocharger to inlet side 16 of housing 11, through outlet side 17 of housing U, and onward to intercooler IC via duct 101. This second flow path (ATR3) is completely isolated from the air flow (AIR1/AIR2) between air Inlet 13 and air outlet 14. Exit air (AIR4) from the iritercooler IC is routed into the engine E to assist combustion and powering the vehicle.
Notably, the embodiment of Figure Sa features a duct 12 (best seen in Figure Sc) between inlet 16 and outlet 17, said duct 12 being integrated into the air filter unit 10 and coupled with silencer S from the turbocharger T and duct 101 to the intercooler. In alternative forms, the cross-flow path may be a tunnel or channel accommodating a duct 101 of the type illustrated by the prior art Figures 1 to 3.
The advantage of the additional height gained by routing duct 101 through the air filter housing U is best illustrated by Figure 5b, where a main filter chamber 18 accommodating the filtering means 15 can be located alongside duct 101; rather than above it, as in the prior art. A solid wall 19 at the inlet side of main filter chamber 18 ensures that air must pass through air filtering means 15 before it oan proceed to the outlet side 14 and particularly, to the part of housing 11 that tO accommodates passage 12. As illustrated in Figure Sb, air flow can freely pass around duct 12 before exiting housing 11 via air outlet 14.
The preferred form of air filtering means 15 for use with the invention is a oartridge type device that can be replaced by making the housing 11 accessible by suitable means, e.g. an opening lid.
Figure 6 illustrates a side view of an air filter unit according to the invention, namely a "tunnel" where the duct 101 to the intercooler is routed through passage 12 which passes through the air filter unit housing 11.
According to the preferred embodiment, the passage 12 that provides the through-pass function of the invention is generally located downstream of the air filtering means 15 itself. However, dependent on the layout of the engine and space availability other arrangements are possible, e.g. the inlet stage of the air filter housing could accommodate the conduit/duct 12/101 and the air filtering means 15 may be located downstream thereof adjacent the outlet stage. Likewise, the air flow paths (AIRl and AIR3) illustrated by Figure 5a may not necessarily be perfectly perpendicular, but may include any practical configuration that allows an engine duct component to be enclosed to some extent by the air filter unit.
It wiil be apparent that the primary advantage of the invention presently identified is its space saving nature or, more particularly, the ability to most efficiently use the available space. However, the invention can also enable the re-use of existing parts while simplifying tO assembly. There may also be advantages in the effect of cool air within the air filter unit contacting the duct from the turbocharger, providing a certain pre-cooling effect, before it reaches the intercocler.
It will be appreciated that the air filter unit of the present invention can be manufactured from available materials and techniques, e.g. Injection moulded plastics.

Claims (1)

  1. <claim-text>WHAT WE CLAIM IS: 1. An air filter unit for a motor vehicle, the air filter unit comrrising a housing for mounting on an engine of the motor vehicle, said housing including an air inlet and an air outlet, and being capable of accommodating an air filtering means between the air inlet and the air outlet, wherein the housing further accommodates a through-path for a conduit associated with another component of the engine.</claim-text> <claim-text>2. The air filter unit according to claim 1 wherein the through-path is located downstream of the air filtering means in the direction of flow of air passing through the air filter unit.</claim-text> <claim-text>3. The air filter unit according to claim 1 or claim 2 wherein, in use, the conduit associated with the through-path is a pipe or duct carrying air from a turbocharger to an intercooler.</claim-text> <claim-text>4. The air filter unit according to any preceding claim wherein the through-path is located to cross the housing generally perpendicularly to the direction of flow of air between the air inlet and the air outlet.</claim-text> <claim-text>5. The air filter unit according to any preceding claim wherein the air filtering means is a cassette type air filtering element.</claim-text> <claim-text>6. The air filter unit according to any preceding claim wherein the conduit is integrated with the housing.</claim-text> <claim-text>7. The air filter unit according to claim 6, wherein the conduit and the housing intersect at joints, said joints incorporating seals which fill any gaps between the oonduit and the housing, so that the housing is leak free at the joints.</claim-text> <claim-text>8. An air filter unit for a motor vehiole engine, the air filter unit including an inlet and an outlet defining, in use, a first air flow path between the inlet and the outlet, and further including an integrated conduit means through the air filter unit, said conduit means defining a second flow path, not being in fluid communication with the first air flow path.</claim-text> <claim-text>9. A method of installing an air filter unit to a motor vehicle engine, wherein the air filter unit includes a housing with an air inlet and an air outlet, and is capable of accommodating an air filtering means between the air inlet and the air outlet, the method comprising connecting air flow lines to a conduit means passing through the housing, said conduit means being sealed from communication with air passing through the air filtering means.</claim-text> <claim-text>10. An air filter unit substantially as herein described with reference to Figures 4 to 6 of the accompanying drawings.ii. A method of installing an air filter unit substantially as herein desoribed with reference to Figures 4 to 6 of the accompanying drawings.</claim-text>
GB1118918.0A 2011-11-02 2011-11-02 An air filter unit for a motor vehicle Withdrawn GB2496152A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1118918.0A GB2496152A (en) 2011-11-02 2011-11-02 An air filter unit for a motor vehicle
EP20120189759 EP2589783B1 (en) 2011-11-02 2012-10-24 Air Filter Unit for Motor Vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1118918.0A GB2496152A (en) 2011-11-02 2011-11-02 An air filter unit for a motor vehicle

Publications (2)

Publication Number Publication Date
GB201118918D0 GB201118918D0 (en) 2011-12-14
GB2496152A true GB2496152A (en) 2013-05-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1118918.0A Withdrawn GB2496152A (en) 2011-11-02 2011-11-02 An air filter unit for a motor vehicle

Country Status (2)

Country Link
EP (1) EP2589783B1 (en)
GB (1) GB2496152A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029965A (en) * 1978-08-26 1980-03-26 Teledyne Ind Detecting solids in a fluid
GB2060432A (en) * 1979-10-10 1981-05-07 Teledyne Ind Solid impurity detector
US6021764A (en) * 1997-01-31 2000-02-08 Suzuki Motor Corporation Air intake structure for an engine with a supercharger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103825U (en) * 1982-12-29 1984-07-12 ダイハツ工業株式会社 Intake system for supercharged internal combustion engines
JPS6041531U (en) * 1983-08-31 1985-03-23 いすゞ自動車株式会社 Intake system for turbocharged engine
JPH10213034A (en) * 1997-01-31 1998-08-11 Suzuki Motor Corp Intake system mounting structure of engine
JP3904285B2 (en) * 1997-05-20 2007-04-11 東洋▲ろ▼機製造株式会社 Intake device
EP1090223B1 (en) * 1998-06-24 2002-08-14 Siemens Canada Limited Manifold housing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029965A (en) * 1978-08-26 1980-03-26 Teledyne Ind Detecting solids in a fluid
GB2060432A (en) * 1979-10-10 1981-05-07 Teledyne Ind Solid impurity detector
US6021764A (en) * 1997-01-31 2000-02-08 Suzuki Motor Corporation Air intake structure for an engine with a supercharger

Also Published As

Publication number Publication date
EP2589783A1 (en) 2013-05-08
GB201118918D0 (en) 2011-12-14
EP2589783B1 (en) 2015-04-22

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)