JPS5779208A - Silencer - Google Patents

Silencer

Info

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
Application number
JP55154421A
Other languages
Japanese (ja)
Inventor
Susumu Kanashiki
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.)
Subaru Corp
Original Assignee
Fuji Jukogyo KK
Fuji Heavy Industries 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 Fuji Jukogyo KK, Fuji Heavy Industries Ltd filed Critical Fuji Jukogyo KK
Priority to JP55154421A priority Critical patent/JPS5779208A/en
Publication of JPS5779208A publication Critical patent/JPS5779208A/en
Pending legal-status Critical Current

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
JP55154421A 1980-10-31 1980-10-31 Silencer Pending JPS5779208A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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