JPS5779208A - Silencer - Google Patents
SilencerInfo
- Publication number
- JPS5779208A JPS5779208A JP55154421A JP15442180A JPS5779208A JP S5779208 A JPS5779208 A JP S5779208A JP 55154421 A JP55154421 A JP 55154421A JP 15442180 A JP15442180 A JP 15442180A JP S5779208 A JPS5779208 A JP S5779208A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- diaphragm
- pressure
- pulsation
- division
- 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
Landscapes
- Exhaust Silencers (AREA)
- Compressor (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
PURPOSE: To reduce pulsation and noises during ventilation by ventilating the two chambers formed by division with a diaphragm provided with a small hole, and by putting an oscillator for diaphragm under proper control.
CONSTITUTION: Suction or exhaust flow of an internal combustion engine is led from a passage 18 into one of the chambers, 14, formed in an oscillator device 12 by means of division with a diaphragm 13 provided with a small hole 19, and goes out from an outlet 17. On the other hand, a vibrating device 20 formed by an electromagnt 20b is installed at the diaphragm 13 and a pressure sensor 21 is furnished to sense any pulsation of pressure of the air flow in the chamber 14, and this vibrating device 20 is vibrated by a synchronizer 22 and an amplifier 23. According to this arrangement, the diaphragm 13 rises when the pressure in the chamber 14 is high to increase the capacity of the chamber 14 and sinks when the pressure in the chamber 14 is low to decrease the capacity of the chamber 14. Thus any pulsation of the air flow can be damped.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154421A JPS5779208A (en) | 1980-10-31 | 1980-10-31 | Silencer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154421A JPS5779208A (en) | 1980-10-31 | 1980-10-31 | Silencer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5779208A true JPS5779208A (en) | 1982-05-18 |
Family
ID=15583785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55154421A Pending JPS5779208A (en) | 1980-10-31 | 1980-10-31 | Silencer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5779208A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58214614A (en) * | 1982-06-07 | 1983-12-13 | Nissan Motor Co Ltd | Silencer for exhaust sound of engine |
JPS6158542U (en) * | 1984-09-20 | 1986-04-19 | ||
JPS6245987A (en) * | 1985-08-23 | 1987-02-27 | Hitachi Ltd | Enclosed type motor-driven compressor |
US8657085B2 (en) | 2009-05-14 | 2014-02-25 | Nifco Inc. | Air damper |
-
1980
- 1980-10-31 JP JP55154421A patent/JPS5779208A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58214614A (en) * | 1982-06-07 | 1983-12-13 | Nissan Motor Co Ltd | Silencer for exhaust sound of engine |
JPH0377370B2 (en) * | 1982-06-07 | 1991-12-10 | Nissan Motor | |
JPS6158542U (en) * | 1984-09-20 | 1986-04-19 | ||
JPH018845Y2 (en) * | 1984-09-20 | 1989-03-09 | ||
JPS6245987A (en) * | 1985-08-23 | 1987-02-27 | Hitachi Ltd | Enclosed type motor-driven compressor |
US8657085B2 (en) | 2009-05-14 | 2014-02-25 | Nifco Inc. | Air damper |
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