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EP1085175A3 - Valve with a non-linear response for a motor vehicle exhaust system - Google Patents

Valve with a non-linear response for a motor vehicle exhaust system Download PDF

Info

Publication number
EP1085175A3
EP1085175A3 EP00116274A EP00116274A EP1085175A3 EP 1085175 A3 EP1085175 A3 EP 1085175A3 EP 00116274 A EP00116274 A EP 00116274A EP 00116274 A EP00116274 A EP 00116274A EP 1085175 A3 EP1085175 A3 EP 1085175A3
Authority
EP
European Patent Office
Prior art keywords
valve
exhaust system
valve body
motor vehicle
vehicle exhaust
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Withdrawn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
EP00116274A
Other languages
German (de)
French (fr)
Other versions
EP1085175A2 (en
Inventor
Bernd Dr. Hagerodt
Achim Heberling
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1085175A2 publication Critical patent/EP1085175A2/en
Publication of EP1085175A3 publication Critical patent/EP1085175A3/en
Withdrawn legal-status Critical Current

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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Lift Valve (AREA)

Abstract

Ein Abgasventil mit Schaltcharakteristik enthält als Ventilkörper (8) einen Topf (4), dessen Mantel (3) als längsgeschlitzte Hülse ausgebildet und zum Eingriff von Fingern (12) einer geschlitzten Tellerfeder (13) eingerichtet ist. Bis zu einem vorgegebenen ersten Wert des Abgasdrucks hält die Feder (13) mit Vorspannung den Ventilkörper (8) in einer Stellung, in der seine Schlitze (7) strömungsmäßig unwirksam sind; bei höheren Druckwerten erfolgt dagegen eine weitgehende Öffnung des Ventils, und schließlich ergibt sich bis zur maximalen Ventilöffnung ein steiler Anstieg der Verstellkraft (K). Diese Charakteristik in Verbindung mit keilförmigen Längsschlitzen (7) im Ventilkörper (8) dient der Bekämpfung von Schwingungen im Abgassystem.

Figure 00000001
An exhaust gas valve with switching characteristics contains a pot (4) as the valve body (8), the casing (3) of which is designed as a longitudinally slotted sleeve and is designed to engage fingers (12) of a slotted disc spring (13). Up to a predetermined first value of the exhaust gas pressure, the spring (13) holds the valve body (8) in a position in which the slots (7) are ineffective in terms of flow; at higher pressure values, on the other hand, the valve opens to a large extent, and finally there is a steep increase in the adjusting force (K) up to the maximum valve opening. This characteristic in conjunction with wedge-shaped longitudinal slots (7) in the valve body (8) serves to combat vibrations in the exhaust system.
Figure 00000001
EP00116274A 1999-09-17 2000-08-09 Valve with a non-linear response for a motor vehicle exhaust system Withdrawn EP1085175A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999144671 DE19944671A1 (en) 1999-09-17 1999-09-17 Valve with switching characteristics, in particular for a motor vehicle exhaust system
DE19944671 1999-09-17

Publications (2)

Publication Number Publication Date
EP1085175A2 EP1085175A2 (en) 2001-03-21
EP1085175A3 true EP1085175A3 (en) 2003-08-13

Family

ID=7922423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116274A Withdrawn EP1085175A3 (en) 1999-09-17 2000-08-09 Valve with a non-linear response for a motor vehicle exhaust system

Country Status (2)

Country Link
EP (1) EP1085175A3 (en)
DE (1) DE19944671A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554905C (en) * 1932-07-13 Hugo Pieron Silencer for internal combustion engines with a pressure equalization chamber and with an automatically adjustable outlet device under spring pressure
FR1372464A (en) * 1963-05-03 1964-09-18 Silencieux Wilman Soc D Expl D Silencer to dampen the noise of spaced discharges of gaseous fluids

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011687B (en) * 1956-01-27 1957-07-04 Kronprinz Ag Pressure relief valve
JPS5060615A (en) * 1973-09-28 1975-05-24

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554905C (en) * 1932-07-13 Hugo Pieron Silencer for internal combustion engines with a pressure equalization chamber and with an automatically adjustable outlet device under spring pressure
FR1372464A (en) * 1963-05-03 1964-09-18 Silencieux Wilman Soc D Expl D Silencer to dampen the noise of spaced discharges of gaseous fluids

Also Published As

Publication number Publication date
EP1085175A2 (en) 2001-03-21
DE19944671A1 (en) 2001-03-22

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