JPS5551910A - Active muffler - Google Patents

Active muffler

Info

Publication number
JPS5551910A
JPS5551910A JP12505878A JP12505878A JPS5551910A JP S5551910 A JPS5551910 A JP S5551910A JP 12505878 A JP12505878 A JP 12505878A JP 12505878 A JP12505878 A JP 12505878A JP S5551910 A JPS5551910 A JP S5551910A
Authority
JP
Japan
Prior art keywords
cylindrical body
partition
frequency
muffler
revolution
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.)
Pending
Application number
JP12505878A
Other languages
Japanese (ja)
Inventor
Takafumi Saeki
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.)
NIPPON RADIATOR CO Ltd
Marelli Corp
Original Assignee
NIPPON RADIATOR CO Ltd
Nihon Radiator Co Ltd
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 NIPPON RADIATOR CO Ltd, Nihon Radiator Co Ltd filed Critical NIPPON RADIATOR CO Ltd
Priority to JP12505878A priority Critical patent/JPS5551910A/en
Publication of JPS5551910A publication Critical patent/JPS5551910A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To regulate the sound arresting characteristic of a muffler to be always matched with the frequency of the exhaust sound by providing within a muffler a member which shifts according to the revolution of an engine to arrest the frequency component of the exhaust sound.
CONSTITUTION: A resonance chamber 1 is consisted of a cylindrical body 2, a fixed partition 3 provided within the cylindrical body 2 and a slidable partition 4 slidably fitted in the cylindrical body 2. A rod having a rack 7 is axially fixed to the center of the slidable partition 4. The slidable partition 4 is shifted in the axial direction of the cylindrical body 2 by the rod 8 driven by the engagement of the rack 7 with a gear train 10 driven by a step motor 9 suitably fixed on the cylindrical body 2 or on an adjacent member. The step motor 9 is controlled by signals generated by a computor which automatically detects the frequency to be arrested corresponding to the revolution of the engine.
COPYRIGHT: (C)1980,JPO&Japio
JP12505878A 1978-10-13 1978-10-13 Active muffler Pending JPS5551910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12505878A JPS5551910A (en) 1978-10-13 1978-10-13 Active muffler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12505878A JPS5551910A (en) 1978-10-13 1978-10-13 Active muffler

Publications (1)

Publication Number Publication Date
JPS5551910A true JPS5551910A (en) 1980-04-16

Family

ID=14900769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12505878A Pending JPS5551910A (en) 1978-10-13 1978-10-13 Active muffler

Country Status (1)

Country Link
JP (1) JPS5551910A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5958711U (en) * 1982-10-13 1984-04-17 日産自動車株式会社 Silencer
JPS61129414A (en) * 1984-11-27 1986-06-17 Agency Of Ind Science & Technol Silencer device of adaptable type
US5475189A (en) * 1992-11-16 1995-12-12 Carrier Corporation Condition responsive muffler for refrigerant compressors
WO2003060381A1 (en) * 2002-01-16 2003-07-24 Alstom Technology Ltd Combustion chamber and damper arrangement for reduction of combustion chamber pulsations in a gas turbine plant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4714046U (en) * 1971-03-19 1972-10-19
JPS5213401A (en) * 1975-07-21 1977-02-01 Christensen Inc Joint member for well pipe
JPS5243104A (en) * 1975-10-01 1977-04-04 Kajima Corp Damper for an air pressure wave with a low frequency
JPS5229339B2 (en) * 1972-03-06 1977-08-01

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4714046U (en) * 1971-03-19 1972-10-19
JPS5229339B2 (en) * 1972-03-06 1977-08-01
JPS5213401A (en) * 1975-07-21 1977-02-01 Christensen Inc Joint member for well pipe
JPS5243104A (en) * 1975-10-01 1977-04-04 Kajima Corp Damper for an air pressure wave with a low frequency

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5958711U (en) * 1982-10-13 1984-04-17 日産自動車株式会社 Silencer
JPS61129414A (en) * 1984-11-27 1986-06-17 Agency Of Ind Science & Technol Silencer device of adaptable type
US5475189A (en) * 1992-11-16 1995-12-12 Carrier Corporation Condition responsive muffler for refrigerant compressors
WO2003060381A1 (en) * 2002-01-16 2003-07-24 Alstom Technology Ltd Combustion chamber and damper arrangement for reduction of combustion chamber pulsations in a gas turbine plant
US7331182B2 (en) 2002-01-16 2008-02-19 Alstom Technology Ltd Combustion chamber for a gas turbine

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