ES473016A1 - Tubular Y=shaped silencer for IC engine - has resonating chamber formed between diaphragms to absorb HF noise - Google Patents

Tubular Y=shaped silencer for IC engine - has resonating chamber formed between diaphragms to absorb HF noise

Info

Publication number
ES473016A1
ES473016A1 ES473016A ES473016A ES473016A1 ES 473016 A1 ES473016 A1 ES 473016A1 ES 473016 A ES473016 A ES 473016A ES 473016 A ES473016 A ES 473016A ES 473016 A1 ES473016 A1 ES 473016A1
Authority
ES
Spain
Prior art keywords
diaphragms
engine
noise
absorb
tubular
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.)
Expired
Application number
ES473016A
Other languages
Spanish (es)
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.)
Peugeot Cycles SA
Original Assignee
Peugeot Cycles SA
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 Peugeot Cycles SA filed Critical Peugeot Cycles SA
Publication of ES473016A1 publication Critical patent/ES473016A1/en
Expired 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
    • 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
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • 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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels
    • 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
    • F01N2470/12—Tubes being corrugated
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

Landscapes

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

Abstract

The silencer for an internal combustion engine is formed from a Y shaped tubular member (14) which connects the exhaust manifold (2, 3, 4, 5) to the exhaust pipe (10). Each branch of the Y has a number of diaphragms (20) with a central hole (18). These diaphragms form a series of resonators which damp out very high frequency noise which is generated when the engine accelerates. The diaphragms are formed from discs with either plain or flanged edges welded to the inner surfaces of the pipe. An alternative design forms the resonating chambers by making deep circumferential corrugations.
ES473016A 1977-09-13 1978-09-01 Tubular Y=shaped silencer for IC engine - has resonating chamber formed between diaphragms to absorb HF noise Expired ES473016A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7727609A FR2402767A1 (en) 1977-09-13 1977-09-13 Tubular Y=shaped silencer for IC engine - has resonating chamber formed between diaphragms to absorb HF noise

Publications (1)

Publication Number Publication Date
ES473016A1 true ES473016A1 (en) 1979-03-16

Family

ID=9195331

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473016A Expired ES473016A1 (en) 1977-09-13 1978-09-01 Tubular Y=shaped silencer for IC engine - has resonating chamber formed between diaphragms to absorb HF noise

Country Status (3)

Country Link
ES (1) ES473016A1 (en)
FR (1) FR2402767A1 (en)
IT (1) IT7869037A0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT206464Z2 (en) * 1986-02-27 1987-08-10 Alfa Romeo Spa EXHAUST SYSTEM FOR A C.I. ENGINE
JPS6424109A (en) * 1987-07-20 1989-01-26 Sanshin Kogyo Kk Exhaust muffler structure of marine vessel propeller
FR2624912B1 (en) * 1987-12-17 1993-01-08 Peugeot TWO-DUCT TUBULAR EXHAUST PART, PARTICULARLY FOR A MOTOR VEHICLE AND METHODS OF MANUFACTURE THEREOF
DE10143364A1 (en) * 2001-09-04 2003-04-03 Faurecia Abgastechnik Gmbh Exhaust system for motor vehicles
CN104389665B (en) * 2014-09-16 2017-02-15 山东大学 Ridge structure perforated pipe noise elimination unit for reactive muffler

Also Published As

Publication number Publication date
IT7869037A0 (en) 1978-09-04
FR2402767A1 (en) 1979-04-06
FR2402767B1 (en) 1981-10-02

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19991102