WO2009143634A3 - Exhaust pipe accessory - Google Patents

Exhaust pipe accessory Download PDF

Info

Publication number
WO2009143634A3
WO2009143634A3 PCT/CA2009/001180 CA2009001180W WO2009143634A3 WO 2009143634 A3 WO2009143634 A3 WO 2009143634A3 CA 2009001180 W CA2009001180 W CA 2009001180W WO 2009143634 A3 WO2009143634 A3 WO 2009143634A3
Authority
WO
WIPO (PCT)
Prior art keywords
wall
exhaust
exhaust gases
nozzle
inner chamber
Prior art date
Application number
PCT/CA2009/001180
Other languages
French (fr)
Other versions
WO2009143634A2 (en
Inventor
Klaus F. Nowak
Original Assignee
Nowak Klaus F
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 Nowak Klaus F filed Critical Nowak Klaus F
Publication of WO2009143634A2 publication Critical patent/WO2009143634A2/en
Publication of WO2009143634A3 publication Critical patent/WO2009143634A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/30—Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

An exhaust duel has a venturi into which exhaust gases from an internal combustion engine flow. and an inner chamber having an υouter frusto-conical shaped wall. The wall increases in cross- section downstream and terminates at a nozzle from which the exhaust gases discharge. The inner chamber is perforated and is surrounded by an inner chamber into which exhaust gases may flow. The nozzle has a curved inner wall which increases in cross-section downstream such that the exhaust gases which discharge through the nozzle and which are adjacent to the inner wall tend to adhere to the latter wall by reason of the Coanda effect. A number of such exhaust ducts are incorporated into an exhaust assembly which also includes a catalytic converter and a resonator.
PCT/CA2009/001180 2008-05-02 2009-04-29 Exhaust pipe accessory WO2009143634A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002630268A CA2630268A1 (en) 2008-05-02 2008-05-02 Exhaust pipe accessory
CA2,630,268 2008-05-02

Publications (2)

Publication Number Publication Date
WO2009143634A2 WO2009143634A2 (en) 2009-12-03
WO2009143634A3 true WO2009143634A3 (en) 2010-01-21

Family

ID=41265497

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2009/001180 WO2009143634A2 (en) 2008-05-02 2009-04-29 Exhaust pipe accessory

Country Status (2)

Country Link
CA (1) CA2630268A1 (en)
WO (1) WO2009143634A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465745B (en) * 2010-11-10 2013-08-07 无锡市胡埭兴宏气源净化设备厂 Silencer
CN113700538A (en) * 2021-07-28 2021-11-26 东风汽车集团股份有限公司 Decorate tail pipe and car tail pipe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647394A (en) * 1970-02-20 1972-03-07 North American Rockwell Muffler device for removing impurities
US4142606A (en) * 1976-10-28 1979-03-06 Hyster Company Exhaust gas diffuser
US4579194A (en) * 1984-03-01 1986-04-01 Nissan Motor Co., Ltd. Muffler with catalyst for internal combustion engine
US5058704A (en) * 1988-11-21 1991-10-22 Yu Chuen Huan Turbo jet muffler
US5376767A (en) * 1991-04-25 1994-12-27 Tetronics Research & Development Co. Limited Plasma torch and an apparatus for producing fused silica using plasma arc electrodes
US5612006A (en) * 1995-07-05 1997-03-18 Fisk; James C. Catalytic converter and phase-spreading spiral muffler assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647394A (en) * 1970-02-20 1972-03-07 North American Rockwell Muffler device for removing impurities
US4142606A (en) * 1976-10-28 1979-03-06 Hyster Company Exhaust gas diffuser
US4579194A (en) * 1984-03-01 1986-04-01 Nissan Motor Co., Ltd. Muffler with catalyst for internal combustion engine
US5058704A (en) * 1988-11-21 1991-10-22 Yu Chuen Huan Turbo jet muffler
US5376767A (en) * 1991-04-25 1994-12-27 Tetronics Research & Development Co. Limited Plasma torch and an apparatus for producing fused silica using plasma arc electrodes
US5612006A (en) * 1995-07-05 1997-03-18 Fisk; James C. Catalytic converter and phase-spreading spiral muffler assembly

Also Published As

Publication number Publication date
CA2630268A1 (en) 2009-11-02
WO2009143634A2 (en) 2009-12-03

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