JPS5551910A - Active muffler - Google Patents
Active mufflerInfo
- 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
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
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)
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)
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 |
-
1978
- 1978-10-13 JP JP12505878A patent/JPS5551910A/en active Pending
Patent Citations (4)
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)
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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