EP0540891A1 - Installation d'échappement pour un moteur à pistons pour véhicule à moteur - Google Patents

Installation d'échappement pour un moteur à pistons pour véhicule à moteur Download PDF

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Publication number
EP0540891A1
EP0540891A1 EP92117149A EP92117149A EP0540891A1 EP 0540891 A1 EP0540891 A1 EP 0540891A1 EP 92117149 A EP92117149 A EP 92117149A EP 92117149 A EP92117149 A EP 92117149A EP 0540891 A1 EP0540891 A1 EP 0540891A1
Authority
EP
European Patent Office
Prior art keywords
exhaust
exhaust system
pipe
silencer
rotary flap
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.)
Granted
Application number
EP92117149A
Other languages
German (de)
English (en)
Other versions
EP0540891B1 (fr
Inventor
Ronny Kirschner
Jürgen Schorn
Peter Ehinger
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0540891A1 publication Critical patent/EP0540891A1/fr
Application granted granted Critical
Publication of EP0540891B1 publication Critical patent/EP0540891B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01N13/02—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 having two or more separate silencers in series
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • F01N13/087—Other arrangements or adaptations of exhaust conduits having valves upstream of silencing apparatus for by-passing at least part of exhaust directly to atmosphere

Definitions

  • the invention relates to an exhaust system of a motor vehicle piston engine according to the preamble of claim 1.
  • Such an exhaust system is known from DE-PS 25 60 475.
  • the exhaust gases coming from the engine first flow through a front silencer and then through a larger rear silencer before they reach the outside. Since the exhaust gases flow through the small front silencer in the entire load range of the engine, the exhaust gas back pressure increases as the load increases and the exhaust gas volume flow increases accordingly, which reduces engine output.
  • a solution to this problem is achieved with the characterizing features of claim 1. If a bypass pipe is installed parallel to the front silencer, it becomes possible to direct the majority of the exhaust gas directly into the large rear silencer bypassing the front silencer. By suitable dimensioning of the cross section of the exhaust pipe and the volume of the rear silencer it is achieved that even in this operating state of the engine a not too loud, acoustically pleasant engine sound is achieved.
  • bypass tube is only opened at vehicle speeds which are higher than 30 km / h.
  • exhaust manifolds 4, 5 are connected to its two V-shaped rows of cylinders; a catalyst 6 is installed in each of them.
  • the exhaust manifolds unite in the X-piece mixing chamber 7.
  • An exhaust pipe 8 is connected to it, which contains a front silencer 9.
  • a second mixing chamber 12 the exhaust pipe 8 and the bypass pipe 10 are combined.
  • a large rear silencer 13 is connected to the second mixing chamber 12, and after it has flowed through it, the exhaust gases pass through an end pipe 14 into the open.
  • the exhaust pipe 8 consists of a front pipe 8a in which the front silencer is seated and a main pipe 8b in which the rear silencer is inserted.
  • the front pipe has a diameter of 50 mm
  • the bypass pipe has a diameter of 75 mm
  • the main pipe has a diameter of 80 mm.
  • the diameter ratio of the main pipe to the front pipe is 1.6.
  • the volume ratio of the front silencer volume V1 to the rear silencer volume V2 is approximately 1/3.
  • the rotary valve 11 is actuated by a vacuum actuator 15 in two-point operation so that it is fully opened from the closed position.
  • the vacuum actuator 15 receives its pressure via a solenoid valve 16 which is connected to the air intake 20 of the engine via a vacuum accumulator 17 and a check valve 18 near the throttle valve 19.
  • An electrical control unit 21 is used for the electrical control of the solenoid valve 16. It receives a signal for the vehicle speed, which is determined by a wheel sensor 22. Furthermore goes into the control unit 21 the 50% full-load curve, which is determined in a computer 23 from the engine speed determined on the distributor 24 and the position of the throttle valve 19 detected by a throttle valve sensor 25. In accordance with these signals, the control unit opens the solenoid valve 16 if the vehicle speed is also higher than approximately 30 km / h and the engine is operated above the 50% full-load curve.
  • the limit value for the engine speed is about 3360 1 / min, the opening angle for the throttle valve 19 is about 26.5 °.
  • the housing 26 of the rotary valve 11 is designed so that it can be used in the bypass tube 10 instead of a ball clip sealing and compensation element.
  • the outer surfaces 27, 28 of the housing 26 are spherically turned. In the ball clamp encompassing the housing 26, it is then only necessary to make a hole for the valve shaft 29 to pass through.
  • the circular valve body 30 of the rotary valve 11 is eccentrically attached to the valve shaft 29.
  • the longer, lower part 31 of the valve body 30 weighs heavier than the upper part and offers a higher resistance to the exhaust gas flow 32 which acts on it.
  • the valve body 30 is brought into its closed position by its own weight and the flow impulse of the exhaust gas 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
EP92117149A 1991-11-02 1992-10-08 Installation d'échappement pour un moteur à pistons pour véhicule à moteur Expired - Lifetime EP0540891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4136206 1991-11-02
DE4136206A DE4136206A1 (de) 1991-11-02 1991-11-02 Abgasanlage eines kraftfahrzeug-hubkolbenmotors

Publications (2)

Publication Number Publication Date
EP0540891A1 true EP0540891A1 (fr) 1993-05-12
EP0540891B1 EP0540891B1 (fr) 1995-06-14

Family

ID=6444008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117149A Expired - Lifetime EP0540891B1 (fr) 1991-11-02 1992-10-08 Installation d'échappement pour un moteur à pistons pour véhicule à moteur

Country Status (3)

Country Link
EP (1) EP0540891B1 (fr)
JP (1) JPH05214969A (fr)
DE (2) DE4136206A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313409A (en) * 1996-05-21 1997-11-26 Custom Chrome Limited Adjustable exhaust silencer for vehicles
DE10106589C1 (de) * 2001-02-13 2002-08-01 Gillet Heinrich Gmbh Schalldämpfer mit variabler Dämpfungscharakteristik
EP2195512A4 (fr) * 2007-09-25 2017-11-29 Scania CV AB Dispositif d'insonorisation
US11988124B2 (en) 2020-12-30 2024-05-21 Ferrari S.P.A. Exhaust system for an internal combustion engine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9401610U1 (de) * 1994-02-01 1994-04-07 Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben Abgasanlage für Verbrennungsmotoren
DE10030490B4 (de) * 2000-06-21 2005-07-21 Dr.Ing.H.C. F. Porsche Ag Abgasanlage für eine Brennkraftmaschine
JP4584564B2 (ja) * 2003-10-10 2010-11-24 日産自動車株式会社 燃料電池の排気システム
WO2012030222A1 (fr) * 2010-09-02 2012-03-08 The Jekill & Hyde Company B.V. Échappement, logement de soupape, véhicule automobile, et procédé de montage
CN112523838B (zh) * 2020-12-01 2022-08-05 潍柴动力股份有限公司 车辆排气降噪方法、装置、后消声装置及消声器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404589A (en) * 1944-12-27 1946-07-23 Higgins Ind Inc Muffler for marine power plants
US2861418A (en) * 1956-05-24 1958-11-25 Gen Motors Corp Exhaust system
WO1984004781A1 (fr) * 1983-05-27 1984-12-06 Af Berga Hans Gunnar Bagge Procede et dispositif pour ameliorer le rendement de moteurs a combustion interne
DE2560475C2 (de) * 1974-11-26 1986-05-15 Fuji Heavy Industries Ltd., Tokio/Tokyo Auspuffanordnung für einen Verbrennungsmotor
EP0279710A1 (fr) * 1987-02-12 1988-08-24 Automobiles Peugeot Dispositif d'échappement d'un moteur à six cylindres en V
US4926635A (en) * 1987-06-08 1990-05-22 Nissan Motor Co., Ltd. Exhaust system for multi-cylinder engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404589A (en) * 1944-12-27 1946-07-23 Higgins Ind Inc Muffler for marine power plants
US2861418A (en) * 1956-05-24 1958-11-25 Gen Motors Corp Exhaust system
DE2560475C2 (de) * 1974-11-26 1986-05-15 Fuji Heavy Industries Ltd., Tokio/Tokyo Auspuffanordnung für einen Verbrennungsmotor
WO1984004781A1 (fr) * 1983-05-27 1984-12-06 Af Berga Hans Gunnar Bagge Procede et dispositif pour ameliorer le rendement de moteurs a combustion interne
EP0279710A1 (fr) * 1987-02-12 1988-08-24 Automobiles Peugeot Dispositif d'échappement d'un moteur à six cylindres en V
US4926635A (en) * 1987-06-08 1990-05-22 Nissan Motor Co., Ltd. Exhaust system for multi-cylinder engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GB-A-L634 (THE WOLSELEY TOOL AND MOTOR CAR COMPANY) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313409A (en) * 1996-05-21 1997-11-26 Custom Chrome Limited Adjustable exhaust silencer for vehicles
DE10106589C1 (de) * 2001-02-13 2002-08-01 Gillet Heinrich Gmbh Schalldämpfer mit variabler Dämpfungscharakteristik
EP2195512A4 (fr) * 2007-09-25 2017-11-29 Scania CV AB Dispositif d'insonorisation
US11988124B2 (en) 2020-12-30 2024-05-21 Ferrari S.P.A. Exhaust system for an internal combustion engine

Also Published As

Publication number Publication date
EP0540891B1 (fr) 1995-06-14
JPH05214969A (ja) 1993-08-24
DE4136206A1 (de) 1993-05-06
DE59202532D1 (de) 1995-07-20

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