WO2011159386A1 - Integrated idealized inlet for engine air induction system - Google Patents

Integrated idealized inlet for engine air induction system Download PDF

Info

Publication number
WO2011159386A1
WO2011159386A1 PCT/US2011/030249 US2011030249W WO2011159386A1 WO 2011159386 A1 WO2011159386 A1 WO 2011159386A1 US 2011030249 W US2011030249 W US 2011030249W WO 2011159386 A1 WO2011159386 A1 WO 2011159386A1
Authority
WO
WIPO (PCT)
Prior art keywords
air flow
air
sleeve
outlet port
component according
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.)
Ceased
Application number
PCT/US2011/030249
Other languages
French (fr)
Inventor
John C. Lukasavitz
Kaarthik Venkataraman
Michael T. Zuroski
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.)
Cummins Filtration IP Inc
Original Assignee
Cummins Filtration IP Inc
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 Cummins Filtration IP Inc filed Critical Cummins Filtration IP Inc
Priority to JP2013515333A priority Critical patent/JP5774098B2/en
Priority to DE112011102042T priority patent/DE112011102042T5/en
Publication of WO2011159386A1 publication Critical patent/WO2011159386A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F02M35/10386—Sensors for intake systems for flow rate
    • 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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
    • 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
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10262—Flow guides, obstructions, deflectors or the like
    • 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
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
    • 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
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10229—Fluid connections to the air intake system; their arrangement of pipes, valves or the like the intake system acting as a vacuum or overpressure source for auxiliary devices, e.g. brake systems; Vacuum chambers
    • 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
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • 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

Definitions

  • the invention relates to air induction systems for internal combustion engines.
  • the invention arose during continuing development efforts directed toward engine air induction systems having an air inlet duct.
  • FIG. 1 is a side view of an engine air induction system known in the prior art.
  • FIG. 2 is a side sectional view of an integrated air flow component in accordance with the present disclosure.
  • FIG. 3 is a perspective view of a portion of the component of Fig. 2.
  • Fig. 4 is like Fig. 2 and shows another embodiment.
  • Fig. 5 is a perspective view of a portion of the component of Fig. 4.
  • Fig. 6 is like Fig. 2 and shows another embodiment.
  • Fig. 7 is a perspective view of the component of Fig. 6.
  • Fig. 8 is like Fig. 2 and shows another embodiment.
  • Fig. 9 is a perspective view of the component of Fig. 8.
  • Fig. 1 shows an engine air induction system 20 including an air inlet duct 22 supplying clean filtered combustion air from air cleaner 24 to internal combustion engine 26.
  • a mass air flow sensor (MAFS) 28 senses the combustion air flow and provides air flow readings to the electronic control module (ECM) of the engine for controlling engine operation, e.g. fuel metering, timing, etc.
  • the engine air induction system may be used as a source for clean, dry air for an engine accessory, e.g. supplying clean, dry air at port 30 to the compressor 32 of an air brake system.
  • a flow straightener e.g. a hex-cell, may be provided at 34 upstream of MAFS 28.
  • Figs. 2 and 3 show an integrated air flow component for an engine air induction system 40 having an air inlet duct 42.
  • Integrated air flow component 44 includes an air flow separator 46 in the duct including air flow guidance surfaces downstream of the air cleaner and conjunctively providing: a) a source of clean filtered combustion air for the engine under multiple flow conditions, including continuous and intermittent; b) a source of clean filtered sensor air for MAFS 28 under the noted multiple flow conditions of combustion air, including continuous and intermittent, with minimized affect on MAFS readings; and c) a source of clean filtered accessory air for supplying a designated accessory, e.g. compressor 32, under the noted multiple flow conditions of combustion air, including continuous and intermittent.
  • a source of clean filtered combustion air for the engine under multiple flow conditions, including continuous and intermittent
  • a source of clean filtered sensor air for MAFS 28 under the noted multiple flow conditions of combustion air, including continuous and intermittent, with minimized affect on MAFS readings
  • a source of clean filtered accessory air for supplying
  • the air flow separator includes an inlet port 50 receiving air from air cleaner 24, and first, second and third outlet ports 52, 54 and 56, respectively.
  • First outlet port 52 supplies combustion air to engine 26.
  • Second outlet port 54 supplies sensor air to MAFS 28.
  • Third outlet port 56 supplies accessory air to the designated accessory 32.
  • First outlet port 52 is in series between inlet port 50 and engine 26.
  • Second and third outlet ports 54 and 56 are in parallel with each other. At least one of the second and third outlet ports is in parallel with the inlet port, e.g. third outlet port 56 is in parallel with inlet port 50.
  • the other of the second and third outlet ports is in series with the inlet port, e.g. outlet port 54 is in series with inlet port 50.
  • the noted other of the second and third outlet ports is in parallel with the first outlet port, e.g. outlet port 54 is in parallel with outlet port 52.
  • Air flow separator 46 includes an outer sleeve 58 concentric to an inner sleeve 60 and defining an annular volume 62 therebetween.
  • Inner sleeve 60 defines an axial flow path 64 therethrough from inlet port 50 to first outlet port 52.
  • Second outlet port 54 extends through inner and outer sleeves 60 and 58 to an inner end 66 and receives sensor air from within inner sleeve 60 and supplies such sensor air externally of inner and outer sleeves 60 and 58 to MAFS 28.
  • Third outlet port 56 extends through outer sleeve 58 and receives accessory air from annular volume 62 between inner and outer sleeves 60 and 58, and supplies the accessory air externally of outer sleeve 58 to the designated accessory 32, e.g.
  • Inner sleeve 60 is configured to idealize the axial flow path and axial flow of combustion air therethrough and to minimize disruption of air flow to the MAFS through second outlet port 54.
  • Inner sleeve 60 is configured to accelerate the axial flow of the combustion air, to accomplish minimization of disruption of air flow to the MAFS through second outlet port 54, such that the MAFS readings remain stable and accurate.
  • Inlet port 50 includes first and second portions 68 and 70 in parallel with each other and receiving air flow from air cleaner 24.
  • Second portion 70 provides an air inlet to annular volume 62 between inner and outer sleeves 60 and 58.
  • second portion 70 is a continuous annulus concentrically surrounding first portion 68.
  • the noted second portion is provided at 70a and is provided by a series of a plurality of openings between inner and outer sleeves 60 and 58 and spaced from each other around an annulus concentrically surrounding first portion 68.
  • the air flow separator 80 includes a sleeve 82 defining axial flow path 64 therethrough from inlet port 50 to first outlet port 52.
  • Second outlet port 54 extends through sleeve 82 to inner end 66 and receives sensor air within sleeve 82 and supplies the sensor air externally of sleeve 82 to MAFS 28.
  • Third outlet port 56a extends through the sleeve and receives accessory air from within the sleeve and supplies the accessory air externally of the sleeve to the designated accessory 32, e.g. the compressor of an air brake system.
  • Sleeve 82 includes a configured section 84 configured to idealize the axial flow path and axial flow of combustion air therethrough and to minimize disruption of air flow to MAFS 28 through second outlet port 54, which outlet port is located at configured section 84 of the sleeve.
  • Combustion air flows axially through the sleeve from upstream to downstream from inlet port 50 to first outlet port 52.
  • Third outlet port 56a is upstream of second outlet port 54.
  • Third outlet port 56a is upstream of configured section 84 of the sleeve.
  • a flow straightener 86 may be provided in the sleeve upstream of second outlet port 54. Flow straightener 86 is downstream of third outlet port 56a.
  • Sleeve 82 is configured to accelerate axial flow of combustion air, to accomplish minimization of disruption of air flow to MAFS 28 through second outlet port 54, such that MAFS readings remain stable and accurate.
  • Figs. 8 and 9 show a further embodiment and use like reference numerals from above where appropriate to facilitate understanding.
  • the noted sleeve includes an inner sleeve 90 surrounded by an outer sleeve 92 defining an annular volume 94 therebetween.
  • Inner sleeve 90 is perforated, as shown at perforations 96, to provide noise attenuation by providing communication into annular volume 94, to reduce noise.
  • the disclosure provides an engine air duct 42 including an outer tube 58, 92 including a wall extending from upstream to downstream, and an inner ideal inlet tube 60, 90 having a downstream section mounted to the wall of the outer tube, e.g. at 98, and having an ideal nozzle inlet at 100 capable of accelerating air flow from upstream to downstream.
  • the outer tube and the inner ideal inlet tube are sized such that the diameter of the inner ideal inlet tube is smaller than that of the outer tube and defines an at least partially circumferential opening 70, 70a diverting a portion of the air flow to a zone 62 between the inner ideal inlet tube and the outer tube.
  • Accessory port 56 receives the noted portion of air flow diverted through the at least partially circumferential opening 70, 70a to zone 62, and transfers the diverted portion of the air flow through the wall of the outer tube.
  • MAFS 28 measures air flow through the inner ideal inlet tube. The acceleration of air flow as it passes through the ideal nozzle inlet allows for undisrupted air flow to the mass air flow sensor.
  • the disclosure provides an engine air duct 42 including a tube 82, 90 passing air flow therethrough from upstream to downstream.
  • Accessory port 56a diverts a portion of the air flow from the tube.
  • Ideal nozzle inlet 84, 100 is downstream of accessory port 56a and accelerates air flow from upstream to downstream.
  • the mass air flow sensor measures air flow through the tube. Acceleration of air flow as it passes through the ideal nozzle inlet allows for undisrupted air flow to the mass air flow sensor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • Measuring Volume Flow (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

An integrated air flow component is provided for an internal combustion engine air induction system having an air inlet duct. The integrated air flow component includes an air flow separator in the duct including air flow guidance surfaces downstream of the air cleaner. An engine air duct is also provided.

Description

INTEGRATED IDEALIZED INLET FOR
ENGINE AIR INDUCTION SYSTEM
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of and priority from Provisional U.S. Patent Application No. 61/355,846, filed June 17, 2010, incorporated herein by reference.
BACKGROUND AND SUMMARY
[0002] The invention relates to air induction systems for internal combustion engines.
[0003] The invention arose during continuing development efforts directed toward engine air induction systems having an air inlet duct.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] Fig. 1 is a side view of an engine air induction system known in the prior art.
[0005] Fig. 2 is a side sectional view of an integrated air flow component in accordance with the present disclosure.
[0006] Fig. 3 is a perspective view of a portion of the component of Fig. 2.
[0007] Fig. 4 is like Fig. 2 and shows another embodiment.
[0008] Fig. 5 is a perspective view of a portion of the component of Fig. 4.
[0009] Fig. 6 is like Fig. 2 and shows another embodiment.
[0010] Fig. 7 is a perspective view of the component of Fig. 6.
[0011] Fig. 8 is like Fig. 2 and shows another embodiment.
[0012] Fig. 9 is a perspective view of the component of Fig. 8.
DETAILED DESCRIPTION
[0013] Fig. 1 shows an engine air induction system 20 including an air inlet duct 22 supplying clean filtered combustion air from air cleaner 24 to internal combustion engine 26. A mass air flow sensor (MAFS) 28 senses the combustion air flow and provides air flow readings to the electronic control module (ECM) of the engine for controlling engine operation, e.g. fuel metering, timing, etc. The engine air induction system may be used as a source for clean, dry air for an engine accessory, e.g. supplying clean, dry air at port 30 to the compressor 32 of an air brake system. A flow straightener, e.g. a hex-cell, may be provided at 34 upstream of MAFS 28.
[0014] Figs. 2 and 3 show an integrated air flow component for an engine air induction system 40 having an air inlet duct 42. Integrated air flow component 44 includes an air flow separator 46 in the duct including air flow guidance surfaces downstream of the air cleaner and conjunctively providing: a) a source of clean filtered combustion air for the engine under multiple flow conditions, including continuous and intermittent; b) a source of clean filtered sensor air for MAFS 28 under the noted multiple flow conditions of combustion air, including continuous and intermittent, with minimized affect on MAFS readings; and c) a source of clean filtered accessory air for supplying a designated accessory, e.g. compressor 32, under the noted multiple flow conditions of combustion air, including continuous and intermittent. The air flow separator includes an inlet port 50 receiving air from air cleaner 24, and first, second and third outlet ports 52, 54 and 56, respectively. First outlet port 52 supplies combustion air to engine 26. Second outlet port 54 supplies sensor air to MAFS 28. Third outlet port 56 supplies accessory air to the designated accessory 32. First outlet port 52 is in series between inlet port 50 and engine 26. Second and third outlet ports 54 and 56 are in parallel with each other. At least one of the second and third outlet ports is in parallel with the inlet port, e.g. third outlet port 56 is in parallel with inlet port 50. The other of the second and third outlet ports is in series with the inlet port, e.g. outlet port 54 is in series with inlet port 50. The noted other of the second and third outlet ports is in parallel with the first outlet port, e.g. outlet port 54 is in parallel with outlet port 52.
[0015] Air flow separator 46 includes an outer sleeve 58 concentric to an inner sleeve 60 and defining an annular volume 62 therebetween. Inner sleeve 60 defines an axial flow path 64 therethrough from inlet port 50 to first outlet port 52. Second outlet port 54 extends through inner and outer sleeves 60 and 58 to an inner end 66 and receives sensor air from within inner sleeve 60 and supplies such sensor air externally of inner and outer sleeves 60 and 58 to MAFS 28. Third outlet port 56 extends through outer sleeve 58 and receives accessory air from annular volume 62 between inner and outer sleeves 60 and 58, and supplies the accessory air externally of outer sleeve 58 to the designated accessory 32, e.g. the compressor of an air brake system. Inner sleeve 60 is configured to idealize the axial flow path and axial flow of combustion air therethrough and to minimize disruption of air flow to the MAFS through second outlet port 54. Inner sleeve 60 is configured to accelerate the axial flow of the combustion air, to accomplish minimization of disruption of air flow to the MAFS through second outlet port 54, such that the MAFS readings remain stable and accurate.
[0016] Inlet port 50 includes first and second portions 68 and 70 in parallel with each other and receiving air flow from air cleaner 24. Second portion 70 provides an air inlet to annular volume 62 between inner and outer sleeves 60 and 58. In Figs. 2, 3, second portion 70 is a continuous annulus concentrically surrounding first portion 68. In Figs. 4 and 5, which show a further embodiment and use like reference numerals from above, the noted second portion is provided at 70a and is provided by a series of a plurality of openings between inner and outer sleeves 60 and 58 and spaced from each other around an annulus concentrically surrounding first portion 68.
[0017] Figs. 6 and 7 show a further embodiment and use like reference numerals from above where appropriate to facilitate understanding. The air flow separator 80 includes a sleeve 82 defining axial flow path 64 therethrough from inlet port 50 to first outlet port 52. Second outlet port 54 extends through sleeve 82 to inner end 66 and receives sensor air within sleeve 82 and supplies the sensor air externally of sleeve 82 to MAFS 28. Third outlet port 56a extends through the sleeve and receives accessory air from within the sleeve and supplies the accessory air externally of the sleeve to the designated accessory 32, e.g. the compressor of an air brake system. Sleeve 82 includes a configured section 84 configured to idealize the axial flow path and axial flow of combustion air therethrough and to minimize disruption of air flow to MAFS 28 through second outlet port 54, which outlet port is located at configured section 84 of the sleeve. Combustion air flows axially through the sleeve from upstream to downstream from inlet port 50 to first outlet port 52. Third outlet port 56a is upstream of second outlet port 54. Third outlet port 56a is upstream of configured section 84 of the sleeve. A flow straightener 86 may be provided in the sleeve upstream of second outlet port 54. Flow straightener 86 is downstream of third outlet port 56a. Sleeve 82 is configured to accelerate axial flow of combustion air, to accomplish minimization of disruption of air flow to MAFS 28 through second outlet port 54, such that MAFS readings remain stable and accurate. [0018] Figs. 8 and 9 show a further embodiment and use like reference numerals from above where appropriate to facilitate understanding. The noted sleeve includes an inner sleeve 90 surrounded by an outer sleeve 92 defining an annular volume 94 therebetween. Inner sleeve 90 is perforated, as shown at perforations 96, to provide noise attenuation by providing communication into annular volume 94, to reduce noise.
[0019] The disclosure provides an engine air duct 42 including an outer tube 58, 92 including a wall extending from upstream to downstream, and an inner ideal inlet tube 60, 90 having a downstream section mounted to the wall of the outer tube, e.g. at 98, and having an ideal nozzle inlet at 100 capable of accelerating air flow from upstream to downstream. The outer tube and the inner ideal inlet tube are sized such that the diameter of the inner ideal inlet tube is smaller than that of the outer tube and defines an at least partially circumferential opening 70, 70a diverting a portion of the air flow to a zone 62 between the inner ideal inlet tube and the outer tube. Accessory port 56 receives the noted portion of air flow diverted through the at least partially circumferential opening 70, 70a to zone 62, and transfers the diverted portion of the air flow through the wall of the outer tube. MAFS 28 measures air flow through the inner ideal inlet tube. The acceleration of air flow as it passes through the ideal nozzle inlet allows for undisrupted air flow to the mass air flow sensor.
[0020] The disclosure provides an engine air duct 42 including a tube 82, 90 passing air flow therethrough from upstream to downstream. Accessory port 56a diverts a portion of the air flow from the tube. Ideal nozzle inlet 84, 100 is downstream of accessory port 56a and accelerates air flow from upstream to downstream. The mass air flow sensor measures air flow through the tube. Acceleration of air flow as it passes through the ideal nozzle inlet allows for undisrupted air flow to the mass air flow sensor.
[0021] In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be inferred therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed. The different configurations, systems, and method steps described herein may be used alone or in combination with other configurations, systems and method steps. It is to be expected that various equivalents, alternatives and modifications are possible within the scope of the appended claims. Each limitation in the appended claims is intended to invoke interpretation under 35 U.S.C. §1 12, sixth paragraph, only if the terms "means for" or "step for" are explicitly recited in the respective limitation.

Claims

CLAIMS What is claimed is:
1. An integrated air flow component for an engine air induction system having an air inlet duct, said integrated air flow component comprising an air flow separator in said duct comprising air flow guidance surfaces downstream of an air cleaner and conjunctively providing: a) a source of clean filtered combustion air for said engine under multiple flow conditions, including continuous and intermittent; b) a source of clean filtered sensor air for a MAFS, mass air flow sensor, under said multiple flow conditions of said combustion air, including continuous and intermittent, with minimized affect on MAFS readings; and c) a source of clean filtered accessory air for supplying a designated accessory under said multiple flow conditions of said combustion air, including continuous and intermittent.
2. The integrated air flow component according to claim 1 wherein said air flow separator comprises an inlet port receiving air from said air cleaner, and first, second and third outlet ports, said first outlet port supplying said combustion air to said engine, said second outlet port supplying said sensor air to said MAFS, said third outlet port supplying said accessory air to said designated accessory.
3. The integrated air flow component according to claim 2 wherein said first outlet port is in series between said inlet port and said engine, and said second and third outlet ports are in parallel with each other.
4. The integrated air flow component according to claim 3 wherein at least one of said second and third outlet ports is in parallel with said inlet port.
5. The integrated air flow component according to claim 4 wherein the other of said second and third outlet ports is in series with said inlet port.
6. The integrated air flow component according to claim 5 wherein said other of said second and third outlet ports is in parallel with said first outlet port.
7. The integrated air flow component according to claim 2 wherein said air flow separator comprises an outer sleeve concentric to an inner sleeve and defining an annular volume therebetween, said inner sleeve defining an axial flow path therethrough from said inlet port to said first outlet port, said second outlet port extends through said inner and outer sleeves and receives said sensor air from within said inner sleeve and supplies said sensor air externally of said inner and outer sleeves to said MAFS, and said third outlet port extends through said outer sleeve and receives said accessory air from said annular volume between said inner and outer sleeves and supplies said accessory air externally of said outer sleeve to said designated accessory.
8. The integrated air flow component according to claim 7 wherein said inner sleeve is configured to idealize said axial flow path and axial flow of said combustion air therethrough and to minimize disruption of air flow to said MAFS through said second outlet port.
9. The integrated air flow component according to claim 8 wherein said inner sleeve is configured to accelerate said axial flow of said combustion air, to accomplish said minimization of disruption of air flow to said MAFS through said second outlet port, such that said MAFS readings remain stable and accurate.
10. The integrated air flow component according to claim 7 wherein said inlet port comprises first and second potions in parallel with each other and receiving air flow from said air cleaner, said second portion providing an air inlet to said annular volume between said inner and outer sleeves.
1 1. The integrated air flow component according to claim 10 wherein said second portion is a continuous annulus concentrically surrounding said first portion.
12. The integrated air flow component according to claim 10 wherein said second portion is a series of a plurality of openings between said inner and outer sleeves and spaced from each other around an annulus concentrically surrounding said first portion.
13. The integrated air flow component according to claim 2 wherein said air flow separator comprises a sleeve defining an axial flow path therethrough from said inlet port to said first outlet port, said second outlet port extends through said sleeve and receives said sensor air from within said sleeve and supplies said sensor air externally of said sleeve to said MAFS, said third outlet port extends through said sleeve and receives said accessory air from within said sleeve and supplies said accessory air externally of said sleeve to said designated accessory.
14. The integrated air flow component according to claim 13 wherein said sleeve comprises a configured section configured to idealize said axial flow path and axial flow of said combustion air therethrough and to minimize disruption of air flow to said MAFS through said second outlet port, and wherein said second outlet port is located at said configured section of said sleeve.
15. The integrated air flow component according to claim 14 wherein said combustion air flows axially through said sleeve from upstream to downstream from said inlet port to said first outlet port, and wherein said third outlet port is upstream of said second outlet port.
16. The integrated air flow component according to claim 15 wherein said third outlet port is upstream of said configured section of said sleeve.
17. The integrated air flow component according to claim 15 comprising a flow straightener in said sleeve upstream of said second outlet port.
18. The integrated air flow component according to claim 17 wherein said flow straightener is downstream of said third outlet port.
19. The integrated air flow component according to claim 14 wherein said sleeve is configured to accelerate said axial flow of said combustion air, to accomplish said minimization of disruption of air flow to said MAFS through said second outlet port, such that said MAFS readings remain stable and accurate.
20. The integrated air flow component according to claim 14 wherein said sleeve comprises an inner sleeve concentrically surrounded by an outer sleeve defining an annular volume therebetween, said inner sleeve being perforated to provide noise attenuation by providing communication into said annular volume, to reduce noise.
21. The integrated air flow component according to claim 1 wherein said designated accessory is an air brake compressor.
22. An engine air duct comprising:
an outer tube comprising a wall extending from upstream to downstream; an inner ideal inlet tube having a downstream section mounted to the wall of the outer tube, and comprising an ideal nozzle inlet capable of accelerating air flow from upstream to downstream;
wherein the outer tube and the inner ideal inlet tube are sized such that the diameter of the inner ideal inlet tube is smaller than that of the outer tube and defines an at least partially circumferential opening diverting a portion of said air flow to a zone between the inner ideal inlet tube and the outer tube;
an accessory port receiving said portion of said air flow diverted through said at least partially circumferential opening to said zone, and transferring said diverted portion of said air flow through the wall of the outer tube; and
a mass air flow sensor measuring air flow through the inner ideal inlet tube; wherein the acceleration of air flow as it passes through the ideal nozzle inlet allows for undisrupted air flow to the mass air flow sensor.
23. An engine air duct comprising:
a tube passing for air flow therethrough from upstream to downstream;
an accessory port diverting a portion of said air flow from the tube; an ideal nozzle inlet downstream of the accessory port and capable of accelerating air flow from upstream to downstream;
a mass air flow sensor measuring air flow through the tube;
wherein the acceleration of air flow as it passes through the ideal nozzle inlet allows for undisrupted air flow to the mass air flow sensor.
PCT/US2011/030249 2010-06-17 2011-03-29 Integrated idealized inlet for engine air induction system Ceased WO2011159386A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2013515333A JP5774098B2 (en) 2010-06-17 2011-03-29 Optimal integrated inlet for engine intake system
DE112011102042T DE112011102042T5 (en) 2010-06-17 2011-03-29 Integrated idealized intake for an engine air intake system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US35584610P 2010-06-17 2010-06-17
US61/355,846 2010-06-17
US13/011,373 2011-01-21
US13/011,373 US8807118B2 (en) 2010-06-17 2011-01-21 Integrated idealized inlet for engine air induction system

Publications (1)

Publication Number Publication Date
WO2011159386A1 true WO2011159386A1 (en) 2011-12-22

Family

ID=45327540

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/030249 Ceased WO2011159386A1 (en) 2010-06-17 2011-03-29 Integrated idealized inlet for engine air induction system

Country Status (4)

Country Link
US (1) US8807118B2 (en)
JP (1) JP5774098B2 (en)
DE (1) DE112011102042T5 (en)
WO (1) WO2011159386A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12006899B2 (en) 2019-11-05 2024-06-11 Parker-Hannifin Corporation Air flow distribution arrangements in pre-cleaner systems

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9528518B2 (en) * 2014-06-16 2016-12-27 Cummins Inc. System, apparatus and methods for diverting airflow to a pressure source
WO2016107469A1 (en) * 2014-12-31 2016-07-07 上海擎掣汽车电子有限公司 Engine and air inlet system thereof
US20170136853A1 (en) * 2015-11-17 2017-05-18 Ford Global Technologies, Llc Air box cover with integral air flow straightener pattern
KR102429052B1 (en) * 2016-11-22 2022-08-04 현대자동차주식회사 Diffuser for air cleaner
JP2018162760A (en) * 2017-03-27 2018-10-18 本田技研工業株式会社 Intake passage structure
US11421615B2 (en) * 2019-05-08 2022-08-23 Injen Technology Company Ltd. Molded air intake system and method for internal combustion engines
GB2586664B (en) * 2019-08-30 2022-03-02 Indufil BV Flow optimized filter
JP7247082B2 (en) * 2019-12-17 2023-03-28 株式会社クボタ engine intake system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434778A (en) * 1979-03-06 1984-03-06 Nissan Motor Co., Ltd. Air induction control device for internal combustion engine
US5818117A (en) * 1993-02-03 1998-10-06 Nartron Corporation Engine induction air driven turbine-alternator incorporating speed control of the turbine in response to alternator output voltage
US6543429B2 (en) * 2000-07-14 2003-04-08 Sanshin Kogyo Kabushiki Kaisha Air induction system for engine
US20040055570A1 (en) * 2002-09-20 2004-03-25 Jim Bielicki Flow conditioning device
US20090250042A1 (en) * 2008-04-08 2009-10-08 Sujan Vivek A System and Method for Controlling a Flow of Intake Air Entering an Internal Combustion Engine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345930C3 (en) * 1973-09-12 1978-08-17 Adam Opel Ag, 6090 Ruesselsheim Intake filter with silencer for internal combustion engines
JPS5791436A (en) * 1980-11-28 1982-06-07 Mitsubishi Electric Corp Detector for amount of suction air of internal combustion engine
US4463601A (en) * 1983-05-23 1984-08-07 General Motors Corporation Method and apparatus for measuring mass airflow
US4790864A (en) * 1987-12-16 1988-12-13 Ford Motor Company Compact engine air/cleaner with integrated components
US5253517A (en) * 1990-05-30 1993-10-19 Siemens Aktiengesellschaft Flow converter
DE4128448A1 (en) * 1991-08-28 1993-03-04 Bosch Gmbh Robert HOUSING FOR A AIR MEASURING METER
DE4132050A1 (en) * 1991-09-26 1993-04-01 Bosch Gmbh Robert AIR MEASURING DEVICE
US5789673A (en) * 1993-09-14 1998-08-04 Hitachi, Ltd. Thermal type air flow measuring instrument for internal combustion engine
DE4340882A1 (en) * 1993-12-01 1995-06-08 Bosch Gmbh Robert Mass flowrate measuring device for i.c. engine air intake
JP3285513B2 (en) * 1997-05-28 2002-05-27 三菱電機株式会社 Thermal flow sensor and intake device for internal combustion engine
DE19815658A1 (en) * 1998-04-08 1999-10-14 Bosch Gmbh Robert Device for measuring the mass of a flowing medium
DE19942502A1 (en) * 1999-09-07 2001-03-08 Bosch Gmbh Robert Device for measuring at least one parameter of a medium flowing in a line
JP3562474B2 (en) * 2001-02-07 2004-09-08 株式会社デンソー Engine control module cooling mechanism
DE10205975A1 (en) * 2002-02-14 2003-08-21 Mann & Hummel Filter Intake system for an internal combustion engine
US20090241683A1 (en) * 2008-03-28 2009-10-01 Cummins, Inc. Mass air flow sensor adaptor
DE202008010058U1 (en) * 2008-07-25 2009-12-03 Mann+Hummel Gmbh Air filter system of a motor vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434778A (en) * 1979-03-06 1984-03-06 Nissan Motor Co., Ltd. Air induction control device for internal combustion engine
US5818117A (en) * 1993-02-03 1998-10-06 Nartron Corporation Engine induction air driven turbine-alternator incorporating speed control of the turbine in response to alternator output voltage
US6543429B2 (en) * 2000-07-14 2003-04-08 Sanshin Kogyo Kabushiki Kaisha Air induction system for engine
US20040055570A1 (en) * 2002-09-20 2004-03-25 Jim Bielicki Flow conditioning device
US20090250042A1 (en) * 2008-04-08 2009-10-08 Sujan Vivek A System and Method for Controlling a Flow of Intake Air Entering an Internal Combustion Engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12006899B2 (en) 2019-11-05 2024-06-11 Parker-Hannifin Corporation Air flow distribution arrangements in pre-cleaner systems

Also Published As

Publication number Publication date
US20110308494A1 (en) 2011-12-22
JP2013528750A (en) 2013-07-11
US8807118B2 (en) 2014-08-19
JP5774098B2 (en) 2015-09-02
DE112011102042T5 (en) 2013-05-02

Similar Documents

Publication Publication Date Title
US8807118B2 (en) Integrated idealized inlet for engine air induction system
CN102057152B (en) Exhaust gas mixing system
US8046989B2 (en) Cooling device for high temperature exhaust
CN101548078B (en) Muffler assembly
CN102713229B (en) Intake manifold section and intake system
US20160097315A1 (en) Silencer
CA2660211A1 (en) Gas turbine engine exhaust duct ventilation
JP2010209912A5 (en)
RU2007127554A (en) SYSTEM OF VENTILATION OF THE WALL OF THE COMBUSTION CHAMBER IN A GAS TURBINE ENGINE, A GAS TURBINE ENGINE CONTAINING THE INDICATED SYSTEM
ATE456740T1 (en) INTEGRATED MASS AIR MASS SENSOR AND WIDE-BAND DAMPER
US8109083B2 (en) Aspirator support structure
CN103452708A (en) Engine including venturi in intake air flow path for exhaust gas recirculation supply
EP2410166B1 (en) Device for mixing exhaust gas with fresh air to be returned to a combustion engine
US8935914B2 (en) Exhaust device
CN101070766B (en) Positive crankcase ventilation device and system
CN108119216B (en) Exhaust muffler and method of manufacturing the same
WO2011129295A1 (en) Exhaust sensor
CN101070772A (en) Fluid extraction arrangement for engine air induction system
CA2841155A1 (en) Intake apparatus
US9238992B2 (en) Exhaust system having a flow rotation element and method for operation of an exhaust system
CN114790930A (en) Exhaust gas sensor assembly
WO2009019350A3 (en) Internal combustion engine inlet manifold
CN104047760B (en) Diaphragm carburetor with fuel metering compensation
EP1701012B1 (en) Exhaust gas purifying device
WO2007108597A1 (en) Combustion promotion device for internal combustion engine

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11796114

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2013515333

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1120111020422

Country of ref document: DE

Ref document number: 112011102042

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11796114

Country of ref document: EP

Kind code of ref document: A1