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JPS57135212A - Muffler - Google Patents

Muffler

Info

Publication number
JPS57135212A
JPS57135212A JP2099481A JP2099481A JPS57135212A JP S57135212 A JPS57135212 A JP S57135212A JP 2099481 A JP2099481 A JP 2099481A JP 2099481 A JP2099481 A JP 2099481A JP S57135212 A JPS57135212 A JP S57135212A
Authority
JP
Japan
Prior art keywords
muffler
volume
expansion chamber
chamber
frequency
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.)
Granted
Application number
JP2099481A
Other languages
Japanese (ja)
Other versions
JPS6346244B2 (en
Inventor
Iku Harada
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP2099481A priority Critical patent/JPS57135212A/en
Publication of JPS57135212A publication Critical patent/JPS57135212A/en
Publication of JPS6346244B2 publication Critical patent/JPS6346244B2/ja
Granted 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing the flow path through the silencer or for adjusting the dimensions of a chamber or a pipe

Landscapes

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

Abstract

PURPOSE:To make possible muffling of wide range of sound by making a expansion chamber volume of a muffler variable at any time according to the frequency of exhaust noise. CONSTITUTION:The exhaust of an engine goes into an expansion chamber through entrance pipe 4 of a muffler 5 and after muffling the sound of frequency corresponding to the volume of the expansion chamber, is exhausted through an exit pipe 16 at the back. The muffler comprises a fixed outer pipe 17 and a movable inner tube 18 that slides within the outer tube 17. The rack 26, provided at the outer surface of the movable inner tube, rotates a pinion 27 and changes the volume of the muffler chamber. A microphone provided at the ouside of the muffler detects the exhaust noise and set the frequency of the noise at the most desired value to be muffled. This preset value rotates the pinion 27 by a motor to set the volume of the muffler chamber at the optimum value.
JP2099481A 1981-02-16 1981-02-16 Muffler Granted JPS57135212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2099481A JPS57135212A (en) 1981-02-16 1981-02-16 Muffler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2099481A JPS57135212A (en) 1981-02-16 1981-02-16 Muffler

Publications (2)

Publication Number Publication Date
JPS57135212A true JPS57135212A (en) 1982-08-20
JPS6346244B2 JPS6346244B2 (en) 1988-09-14

Family

ID=12042670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2099481A Granted JPS57135212A (en) 1981-02-16 1981-02-16 Muffler

Country Status (1)

Country Link
JP (1) JPS57135212A (en)

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970868A (en) * 1982-10-15 1984-04-21 Nippon Denso Co Ltd Variable volume resonant muffler system
JPS61129414A (en) * 1984-11-27 1986-06-17 Agency Of Ind Science & Technol Silencer device of adaptable type
JPS63118320U (en) * 1987-01-26 1988-07-30
JPH04132814A (en) * 1990-09-25 1992-05-07 Fujii Kogyo:Kk Muffling device corresponding to variable frequency
FR2698149A1 (en) * 1992-11-16 1994-05-20 Carrier Corp Refrigerator compressor silencer responding to flow pulses - uses mobile walls inside silencer that are driven by stepper motor in response to measured input and output pulsations
US6595320B2 (en) * 2001-04-18 2003-07-22 Korea Institute Of Science & Technology Apparatus for controlling exhaust gas in internal combustion engine
KR100435399B1 (en) * 2001-10-09 2004-06-10 현대자동차주식회사 Door opening and closing type muffler using a rack and pinion
GB2397624A (en) * 2003-01-24 2004-07-28 Visteon Global Tech Inc A variable tuned telescoping resonator
GB2399141A (en) * 2003-03-04 2004-09-08 Visteon Global Tech Inc Variable tuned resonator
EP1300581A3 (en) * 2001-10-04 2006-04-05 Yamaha Hatsudoki Kabushiki Kaisha Resonance box for sound pressure level modulation for internal combustion engines
CN102392723A (en) * 2011-10-28 2012-03-28 上海交通大学 Turbocharging system with self-regulated-volume exhaust pipe
KR101261856B1 (en) 2010-08-25 2013-05-07 삼성중공업 주식회사 Silencer
CN103486394A (en) * 2013-09-30 2014-01-01 同济大学 Variable-frequency microperforated pipe silencer with variable perforation section lengths
CN108826647A (en) * 2018-06-13 2018-11-16 珠海格力电器股份有限公司 Silencer structure and air conditioner
US10815764B1 (en) 2019-09-13 2020-10-27 Bj Energy Solutions, Llc Methods and systems for operating a fleet of pumps
US10895202B1 (en) 2019-09-13 2021-01-19 Bj Energy Solutions, Llc Direct drive unit removal system and associated methods
US10954770B1 (en) 2020-06-09 2021-03-23 Bj Energy Solutions, Llc Systems and methods for exchanging fracturing components of a hydraulic fracturing unit
US10961908B1 (en) 2020-06-05 2021-03-30 Bj Energy Solutions, Llc Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit
US10968837B1 (en) 2020-05-14 2021-04-06 Bj Energy Solutions, Llc Systems and methods utilizing turbine compressor discharge for hydrostatic manifold purge
US10989180B2 (en) 2019-09-13 2021-04-27 Bj Energy Solutions, Llc Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods
US11002189B2 (en) 2019-09-13 2021-05-11 Bj Energy Solutions, Llc Mobile gas turbine inlet air conditioning system and associated methods
US11015536B2 (en) 2019-09-13 2021-05-25 Bj Energy Solutions, Llc Methods and systems for supplying fuel to gas turbine engines
US11015594B2 (en) 2019-09-13 2021-05-25 Bj Energy Solutions, Llc Systems and method for use of single mass flywheel alongside torsional vibration damper assembly for single acting reciprocating pump
US11022526B1 (en) 2020-06-09 2021-06-01 Bj Energy Solutions, Llc Systems and methods for monitoring a condition of a fracturing component section of a hydraulic fracturing unit
US11028677B1 (en) 2020-06-22 2021-06-08 Bj Energy Solutions, Llc Stage profiles for operations of hydraulic systems and associated methods
US11066915B1 (en) 2020-06-09 2021-07-20 Bj Energy Solutions, Llc Methods for detection and mitigation of well screen out
US11109508B1 (en) 2020-06-05 2021-08-31 Bj Energy Solutions, Llc Enclosure assembly for enhanced cooling of direct drive unit and related methods
US11125066B1 (en) 2020-06-22 2021-09-21 Bj Energy Solutions, Llc Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing
US11149533B1 (en) 2020-06-24 2021-10-19 Bj Energy Solutions, Llc Systems to monitor, detect, and/or intervene relative to cavitation and pulsation events during a hydraulic fracturing operation
US11193361B1 (en) 2020-07-17 2021-12-07 Bj Energy Solutions, Llc Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations during high-pressure fracturing operations
US11208880B2 (en) 2020-05-28 2021-12-28 Bj Energy Solutions, Llc Bi-fuel reciprocating engine to power direct drive turbine fracturing pumps onboard auxiliary systems and related methods
US11208953B1 (en) 2020-06-05 2021-12-28 Bj Energy Solutions, Llc Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit
US11220895B1 (en) 2020-06-24 2022-01-11 Bj Energy Solutions, Llc Automated diagnostics of electronic instrumentation in a system for fracturing a well and associated methods
US11236739B2 (en) 2019-09-13 2022-02-01 Bj Energy Solutions, Llc Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods
US11268346B2 (en) 2019-09-13 2022-03-08 Bj Energy Solutions, Llc Fuel, communications, and power connection systems
US11408794B2 (en) 2019-09-13 2022-08-09 Bj Energy Solutions, Llc Fuel, communications, and power connection systems and related methods
US11415125B2 (en) 2020-06-23 2022-08-16 Bj Energy Solutions, Llc Systems for utilization of a hydraulic fracturing unit profile to operate hydraulic fracturing units
US11428165B2 (en) 2020-05-15 2022-08-30 Bj Energy Solutions, Llc Onboard heater of auxiliary systems using exhaust gases and associated methods
US11473413B2 (en) 2020-06-23 2022-10-18 Bj Energy Solutions, Llc Systems and methods to autonomously operate hydraulic fracturing units
US11560845B2 (en) 2019-05-15 2023-01-24 Bj Energy Solutions, Llc Mobile gas turbine inlet air conditioning system and associated methods
US11624326B2 (en) 2017-05-21 2023-04-11 Bj Energy Solutions, Llc Methods and systems for supplying fuel to gas turbine engines
US11635074B2 (en) 2020-05-12 2023-04-25 Bj Energy Solutions, Llc Cover for fluid systems and related methods
US11639654B2 (en) 2021-05-24 2023-05-02 Bj Energy Solutions, Llc Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods
US11643915B2 (en) 2020-06-09 2023-05-09 Bj Energy Solutions, Llc Drive equipment and methods for mobile fracturing transportation platforms
US11867118B2 (en) 2019-09-13 2024-01-09 Bj Energy Solutions, Llc Methods and systems for supplying fuel to gas turbine engines
US11933153B2 (en) 2020-06-22 2024-03-19 Bj Energy Solutions, Llc Systems and methods to operate hydraulic fracturing units using automatic flow rate and/or pressure control
US11939853B2 (en) 2020-06-22 2024-03-26 Bj Energy Solutions, Llc Systems and methods providing a configurable staged rate increase function to operate hydraulic fracturing units
US12065968B2 (en) 2019-09-13 2024-08-20 BJ Energy Solutions, Inc. Systems and methods for hydraulic fracturing
CN118775051A (en) * 2024-08-06 2024-10-15 广东省富电康柴油发电机有限公司 Intelligent sound-absorbing and heat-insulated diesel generator set
US12281964B2 (en) 2019-09-13 2025-04-22 Bj Energy Solutions, Llc Fuel, communications, and power connection systems and related methods
US12338772B2 (en) 2019-09-13 2025-06-24 Bj Energy Solutions, Llc Systems, assemblies, and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit
US12378864B2 (en) 2021-10-25 2025-08-05 Bj Energy Solutions, Llc Systems and methods to reduce acoustic resonance or disrupt standing wave formation in a fluid manifold of a high-pressure fracturing system
US12516632B2 (en) 2019-09-13 2026-01-06 Bj Energy Solutions, Llc Turbine engine exhaust duct system and methods for noise dampening and attenuation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114550A (en) * 1974-07-27 1976-02-05 Tokico Ltd SHOONKI
JPS5213401A (en) * 1975-07-21 1977-02-01 Christensen Inc Joint member for well pipe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114550A (en) * 1974-07-27 1976-02-05 Tokico Ltd SHOONKI
JPS5213401A (en) * 1975-07-21 1977-02-01 Christensen Inc Joint member for well pipe

Cited By (167)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970868A (en) * 1982-10-15 1984-04-21 Nippon Denso Co Ltd Variable volume resonant muffler system
JPS61129414A (en) * 1984-11-27 1986-06-17 Agency Of Ind Science & Technol Silencer device of adaptable type
JPS63118320U (en) * 1987-01-26 1988-07-30
JPH04132814A (en) * 1990-09-25 1992-05-07 Fujii Kogyo:Kk Muffling device corresponding to variable frequency
FR2698149A1 (en) * 1992-11-16 1994-05-20 Carrier Corp Refrigerator compressor silencer responding to flow pulses - uses mobile walls inside silencer that are driven by stepper motor in response to measured input and output pulsations
US6595320B2 (en) * 2001-04-18 2003-07-22 Korea Institute Of Science & Technology Apparatus for controlling exhaust gas in internal combustion engine
EP1300581A3 (en) * 2001-10-04 2006-04-05 Yamaha Hatsudoki Kabushiki Kaisha Resonance box for sound pressure level modulation for internal combustion engines
KR100435399B1 (en) * 2001-10-09 2004-06-10 현대자동차주식회사 Door opening and closing type muffler using a rack and pinion
GB2397624B (en) * 2003-01-24 2005-03-30 Visteon Global Tech Inc Variable tuned telescoping resonator
GB2397624A (en) * 2003-01-24 2004-07-28 Visteon Global Tech Inc A variable tuned telescoping resonator
GB2399141A (en) * 2003-03-04 2004-09-08 Visteon Global Tech Inc Variable tuned resonator
US6792907B1 (en) 2003-03-04 2004-09-21 Visteon Global Technologies, Inc. Helmholtz resonator
KR101261856B1 (en) 2010-08-25 2013-05-07 삼성중공업 주식회사 Silencer
CN102392723A (en) * 2011-10-28 2012-03-28 上海交通大学 Turbocharging system with self-regulated-volume exhaust pipe
CN103486394A (en) * 2013-09-30 2014-01-01 同济大学 Variable-frequency microperforated pipe silencer with variable perforation section lengths
US11624326B2 (en) 2017-05-21 2023-04-11 Bj Energy Solutions, Llc Methods and systems for supplying fuel to gas turbine engines
CN108826647A (en) * 2018-06-13 2018-11-16 珠海格力电器股份有限公司 Silencer structure and air conditioner
CN108826647B (en) * 2018-06-13 2019-10-01 珠海格力电器股份有限公司 Silencer structure and air conditioner
US11560845B2 (en) 2019-05-15 2023-01-24 Bj Energy Solutions, Llc Mobile gas turbine inlet air conditioning system and associated methods
US11971028B2 (en) 2019-09-13 2024-04-30 Bj Energy Solutions, Llc Systems and method for use of single mass flywheel alongside torsional vibration damper assembly for single acting reciprocating pump
US10907459B1 (en) 2019-09-13 2021-02-02 Bj Energy Solutions, Llc Methods and systems for operating a fleet of pumps
US12510070B2 (en) 2019-09-13 2025-12-30 Bj Energy Solutions, Llc Systems and method for use of single mass flywheel alongside torsional vibration damper assembly for single acting reciprocating pump
US10961912B1 (en) 2019-09-13 2021-03-30 Bj Energy Solutions, Llc Direct drive unit removal system and associated methods
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