WO1990015232A1 - Standing wave noise processing device for internal combustion engine or the like - Google Patents

Standing wave noise processing device for internal combustion engine or the like Download PDF

Info

Publication number
WO1990015232A1
WO1990015232A1 PCT/JP1990/000708 JP9000708W WO9015232A1 WO 1990015232 A1 WO1990015232 A1 WO 1990015232A1 JP 9000708 W JP9000708 W JP 9000708W WO 9015232 A1 WO9015232 A1 WO 9015232A1
Authority
WO
WIPO (PCT)
Prior art keywords
members
standing wave
wave noise
combustion engine
internal combustion
Prior art date
Application number
PCT/JP1990/000708
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Tetsuro Oguchi
Yoshiyuki Kidoguchi
Original Assignee
Kabushiki Kaisha Komatsu Seisakusho
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 Kabushiki Kaisha Komatsu Seisakusho filed Critical Kabushiki Kaisha Komatsu Seisakusho
Publication of WO1990015232A1 publication Critical patent/WO1990015232A1/ja

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/008—Sound insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/06—Endless member is a belt

Definitions

  • the present invention relates to a standing wave noise processing device for an internal combustion engine such as an internal combustion engine that reduces a standing wave generated from a partially surrounded space such as an internal combustion engine.
  • the standing wave can be effectively reduced by mounting the space in advance.
  • the sound source is a non-combustible engine
  • the space for generating standing waves is formed by trunnions, etc., which are self-sustained in plane motion that supports the internal combustion engine, etc.
  • relative displacement between the members was involved, and there were problems such as the inability to reduce the standing wave with sound-absorbing materials that had been molded in advance.
  • the present invention is an improvement of such a conventional problem, in which a plurality of members forming a space are relatively displaced.
  • the invention disclosed is intended to provide a standing wave noise processing device for a fuel-burning engine or the like, which is capable of processing the standing wave noise.
  • a pair of flexible members are provided so as to deflect an air duct formed by a plurality of members which are relatively displaced in a combustion engine or the like.
  • the sliding members and the heads that act on the mating surfaces of the flexible members are provided. It is.
  • Fig. 1 is a front view of one embodiment of the present invention
  • Fig. 2 is a side view
  • Fig. 3 is a detailed view of a main part.
  • 1 is an internal combustion engine, the front of which is supported by trunnions 2.
  • the processing device 5 includes a pair of flexible members 5a and 5b formed so as to surround a space, and one of the members 5a is disposed on the trunnion 2 side. Further, the other member 5b is fixed to the front cover 3 side by means such as bonding.
  • slide beads 5c are provided so as to be in sliding contact with each other.
  • the above-mentioned slide 5c is formed of a slippery material, and has a size corresponding to the relative displacement so that the space can always be sealed. It has been decided.
  • the slide pad 5c may be formed integrally with the flexible members 5a and 5b as long as the displacement speed and wear resistance are satisfactory.
  • the sliding surface of the slide pad 5c may be a flat surface or a tapered surface.
  • this invention provides a pair of flexible members so as to surround the space formed by the members that are relatively displaced. Since the flexible members are fixed to the members that are displaced relative to each other, and the sliding pads that slide on each other are provided on the mating surfaces of the flexible members, the relative displacement is achieved. It is possible to reduce standing wave noise generated from the space formed between the members.
  • the standing wave noise emitted from the members installed with a large number of spaces around, such as a combustion engine can be effectively reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Harvester Elements (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Vibration Prevention Devices (AREA)
PCT/JP1990/000708 1989-06-01 1990-05-31 Standing wave noise processing device for internal combustion engine or the like WO1990015232A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1/63234U 1989-06-01
JP1989063234U JP2517434Y2 (ja) 1989-06-01 1989-06-01 内燃機関等の定在波騒音処理装置

Publications (1)

Publication Number Publication Date
WO1990015232A1 true WO1990015232A1 (en) 1990-12-13

Family

ID=13223324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/000708 WO1990015232A1 (en) 1989-06-01 1990-05-31 Standing wave noise processing device for internal combustion engine or the like

Country Status (2)

Country Link
JP (1) JP2517434Y2 (enrdf_load_stackoverflow)
WO (1) WO1990015232A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2263804C1 (ru) * 2004-02-24 2005-11-10 Военно-морская академия им. Адмирала Флота Советского Союза Н.Г. Кузнецова Шатунно-поршневая группа

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670250U (enrdf_load_stackoverflow) * 1979-11-01 1981-06-10
JPS6041535U (ja) * 1983-08-31 1985-03-23 日野自動車株式会社 エンジンの防音装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143738Y2 (enrdf_load_stackoverflow) * 1971-07-20 1976-10-23
JPS61142142U (enrdf_load_stackoverflow) * 1985-02-25 1986-09-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670250U (enrdf_load_stackoverflow) * 1979-11-01 1981-06-10
JPS6041535U (ja) * 1983-08-31 1985-03-23 日野自動車株式会社 エンジンの防音装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2263804C1 (ru) * 2004-02-24 2005-11-10 Военно-морская академия им. Адмирала Флота Советского Союза Н.Г. Кузнецова Шатунно-поршневая группа

Also Published As

Publication number Publication date
JPH035940U (enrdf_load_stackoverflow) 1991-01-21
JP2517434Y2 (ja) 1996-11-20

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