EP0897060B1 - Silencieux d'admission - Google Patents

Silencieux d'admission Download PDF

Info

Publication number
EP0897060B1
EP0897060B1 EP19980114749 EP98114749A EP0897060B1 EP 0897060 B1 EP0897060 B1 EP 0897060B1 EP 19980114749 EP19980114749 EP 19980114749 EP 98114749 A EP98114749 A EP 98114749A EP 0897060 B1 EP0897060 B1 EP 0897060B1
Authority
EP
European Patent Office
Prior art keywords
intake
silencing
ribs
silencing chamber
chamber
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.)
Expired - Fee Related
Application number
EP19980114749
Other languages
German (de)
English (en)
Other versions
EP0897060A2 (fr
EP0897060A3 (fr
Inventor
Kazunari Satoh
Masamichi Fujishiro
Michio c/o Tigers Polymer Corp. Kijima
Akio c/o Tigers Polymer Corp. Okuno
Katsuhiko c/o Tigers Polymer Corp. Yokoyama
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co 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
Priority claimed from JP21841697A external-priority patent/JP3974977B2/ja
Priority claimed from JP21841897A external-priority patent/JP3526729B2/ja
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP0897060A2 publication Critical patent/EP0897060A2/fr
Publication of EP0897060A3 publication Critical patent/EP0897060A3/fr
Application granted granted Critical
Publication of EP0897060B1 publication Critical patent/EP0897060B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments

Definitions

  • the present invention relates to an intake silencer system including an intake duct which communicates at opposite ends thereof with the atmospheric air and an engine, respectively, and whose intermediate portion opens into an intake silencing chamber.
  • An intake silencer system is known, for example, from Japanese Patent Application Laid-open No.8-158965.
  • a first silencing chamber 02 and a second silencing chamber 03 are defined in a case 01 by division of the inside of the case 01.
  • a first intake duct 04 communicating with an engine and a second intake duct 05 communicating the atmospheric air are opposed to each other within the first silencing chamber 02.
  • the second intake duct 05 communicates with the second silencing chamber 03 through a communication pipe 06. In this manner, a silencing function is obtained by the resonance effect of the first and second silencing chambers 02 and 03.
  • the above known system suffers from the following problem: Each of the first and second silencing chambers 02 and 03 exhibits a silencing effect only in a single frequency band. For this reason, to ensure that the silencing effect is exhibited in a wider frequency range, it is necessary to further increase the number of the silencing chambers, or to add a side branch. This is complicated and increases the size of the structure of an intake silencer system, resulting in an increased cost. Particularly, if the intake silencer system having the complicated structure and the large size is to be disposed in a narrow engine room, the following problems are encountered: a required large space hinders the disposition of other auxiliaries, and the workability of attachment and detachment of the intake silencer system is reduced due to the interference with other members.
  • WO 97 17 531 A discloses an intake silencer system according to the preamble of claim 1. There, a plurality of silencing chambers are separated by a plurality of complicated bent walls or ribs extending between opposed side walls of the chamber.
  • an object of the present invention to provide an intake silencer system which is capable of exhibiting a silencing effect over a wide frequency range while maintaining a simple and compact structure, and moreover, which can be easily disposed in a narrow space such as an engine room in an automobile.
  • an intake silencer system comprising an intake duct which communicates at opposite ends thereof with the atmospheric air and an engine, respectively, and whose intermediate portion opens into an intake silencing chamber.
  • the intake silencer system further includes a plurality of subsidiary silencing chambers which are defined within the intake silencing chamber by integrally connecting the opposed wall surfaces of the intake silencing chamber to each other with a plurality of ribs, the subsidiary silencing chambers being closed at one end thereof and opened at the other end directly into the intake silencing chamber.
  • the silencing chambers have different resonance frequencies. All ribs are connected to three side walls of the intake silencer chamber and are all straight.
  • the plurality of subsidiary silencing chambers having the different resonance frequencies can be formed in a simple and compact structure in which the opposed wall surfaces of the intake silencing chamber are only integrally connected to each other by the plurality of ribs. Therefore, a silencing effect over a wide frequency range can be obtained by the resonance effect of each of the subsidiary silencing chambers, each functioning as a side branch. Moreover, the rigidity of the wall surfaces of the intake silencing chamber is enhanced by the plurality of ribs and hence, it is possible to effectively inhibit the generation of a radiated sound due to the vibration of the wall surfaces. As the ribs are straight and are connected to three side walls, the rigidity of the silencer is increased in a simplified construction.
  • the wall surface rigidity which would have been decreased because of its larger area can be reinforced by the ribs to further effectively inhibit the generation of the radiated sound, and also the size of the ribs can be maintained to the minimum.
  • the intake silencing chamber may comprise a first case half and a second case half with mating faces thereof coupled to each other to clamp the intake duct, and the plurality of subsidiary silencing chambers defined in the first case half may open toward the mating faces.
  • the plurality of subsidiary silencing chambers are disposed on one side of the intake silencing chamber and the intake duct is disposed on the other side of the intake silencing chamber, in a horizontal direction, respectively.
  • the intake duct is prevented from interfering with the ribs and hence, the size of the ribs is not limited, leading to an increased freedom in determining of the sizes and shapes of the subsidiary silencing chambers.
  • the engine is mounted in a vehicle, wherein at least a portion of the intake silencing chamber is formed by a slant surface inclined with respect to a center plane of a vehicle body and extending along a wall surface of the vehicle body, and said plurality of subsidiary silencing chambers having different resonance frequencies by said ribs formed integrally with the slant surface in parallel to one another toward the intake duct.
  • the slant surface enables the plurality of subsidiary silencing chambers to have different sizes and shapes and different resonance frequencies. Therefore, it is possible to obtain a silencing effect over a wider frequency range by a resonance effect of each of the subsidiary silencing chambers each functioning as a side branch.
  • the plurality of ribs enhance the rigidity of the intake silencing chamber and hence, it is possible to effectively inhibit the generation of a radiated sound due to the vibration.
  • the plurality of subsidiary silencing chambers are disposed on one side of the intake silencing chamber and the intake duct is disposed on the other side of the intake silencing chamber, in a horizontal direction, and tip ends of the plurality of ribs are trued up in a longitudinal direction of the vehicle body.
  • the shape of the cross section of the intake duct is an elliptic shape with a short diameter in a direction of extension of the ribs, the interference of the intake duct with the ribs is further effectively prevented, leading to a further increased freedom in determining the sizes and shapes of the subsidiary silencing chambers.
  • Figs.1 to 7 show a first embodiment of the present invention, wherein
  • a right side frame 22 constituting a vehicle body frame according to a first embodiment of the present invention is disposed in a longitudinal direction of a vehicle body of an automobile at a front and right portion of an engine room 21 provided at a front portion of the vehicle body.
  • a fender 23 constituting a wall surface of the vehicle body according to the first embodiment of the present invention is disposed on the right of the side frame 22, and an intake silencer system R is disposed between a left side of the fender 23 and a right side of the side frame 22.
  • the intake silencer system R comprises a case 14 which is made of a synthetic resin.
  • the case 14 comprises a right first case half 11 and a left second case half 12 integrally coupled to each other at mating faces 13 extending in a vertical direction.
  • An intake duct 15 which is made in a J-shape of a synthetic resin, is clamped between the mating faces 13 of the first case half 11 and the second case half 12.
  • Mounting brackets 12 10 and 12 11 are integrally formed at a front end and a rear end of the second case half 12, respectively, and fastened to the side frame 22 by bolts 24, 24.
  • a rubber cushion 25 is mounted at a central portion of the left side of the second case half 12 to abut against a right side of a plate member 22 1 pending downwards from a front portion of the side frame 22, whereby the leftward and rightward. deflections of the case 14 are limited.
  • the intake silencing system R is supported to protrude rightwards from the side frame 22 by fastening the second case half 12 to the side frame 22, but the intake duct 15 heavy in weight is disposed at a location near the side frame 22 and hence, the rigidity of supporting of the intake silencer system R is enhanced.
  • a battery 26 is supported at a front and left portion of the side frame 22.
  • a front portion of the fender 23 in a direction of the vehicle body as view in a plane is inclined in a direction toward a center plane P of the vehicle body, and a right case sidewall 11 8 of the first case half 11 is formed so that it is inclined along an inner surface of the fender 23.
  • the inner surface of the fender 23 and the case sidewall 11 8 of the first case half 11 are opposed to each other though a small gap ⁇ .
  • a recess 11 13 (see Figs.2 and 4) is defined at a front lower portion of the first case half 11, and a turning signal lamp 27 mounted at a right end of a front bumper (not shown) is accommodated in the recess 11 13 .
  • a pair of mounting brackets 28 1 and 28 2 are mounted at front and rear portions of an air cleaner 28 and fixed to upper ends of a pair of front and rear stays 29 and 30 risen on an upper surface of the side frame 22 by bolts 31, 31, respectively.
  • the air cleaner 28 is supported at a location above the side frame 22 and between a rear portion of the right-side intake silencer system R and a rear portion of the left-side battery 26.
  • the air cleaner 28 is disposed in an inclined manner, so that its upper surface is parallel to a bonnet 32 to prevent the interference with the bonnet 32 declining forward (see Fig.1).
  • An intake introducing duct 33 extending upwards toward a lower surface of the bonnet 32 is connected to an air inlet 15 5 of the intake duct 15 protruding from an upper surface of the case 14, and an air outlet 15 6 of the intake duct 15 protruding from the upper surface of the case 14 is connected directly to an air inlet 28 3 protruding from a lower surface of the air cleaner 28.
  • An air outlet 28 5 is provided in an upper portion of the air cleaner 28, i.e., on an opposite side from the air inlet 28 3 with an element 28 4 interposed between the air outlet 28 5 and the air inlet 28 3 , and is connected to the engine (not shown) through an air flow tube 34.
  • the first case half 11 has a volume larger than that of the second case half 12 and includes a wedge-shaped recess 16 which is defined at a location spaced one third of the way down from an upper surface of the first case half 11 and which extends toward the mating face 13.
  • a first partition wall 11 1 extends horizontally from the tip end of the wedge-shaped recess 16 toward the mating face 13.
  • the tip end of the first partition wall 11 1 is coupled to a tip end of a second partition wall 12 1 extending horizontally from an inner surface of the second case half 12 toward the mating face 13.
  • a first resonant chamber 17 forming an intake silencing chamber of the present invention is defined between lower-side case upper walls 11 2 and 12 2 and a lower-side recess upper wall 16 1 as well as the first and second partition walls 11 1 and 12 1
  • a second resonant chamber 18 is defined between lower-side case lower walls 11 3 and 12 3 and an upper-side recess lower wall 16 2 as well as the first and second partition walls 11 1 and 12 1 .
  • a pair of annular projections 15 1 and 15 2 are formed around an outer periphery of an upper portion of the intake duct 15 and interposed between a pair of notches 11 4 and 11 5 defined in the case upper wall 11 2 of the first case half 11 and a pair of notches 12 4 and 12 5 defined in the case upper wall 12 2 of the second case half 12 (see Figs.4 and 5).
  • a pair of annular recesses 15 3 and 15 4 are defined around an outer periphery of a lower portion of the intake duct 15 and interposed between a pair of notches 11 6 and 11 7 defined in the first partition wall 11 1 of the first case half 11 and a pair of notches 12 6 and 12 7 defined in the second partition wall 12 1 of the second case half 12 (see Figs.5 and 6).
  • the intake duct 15 is firmly clamped between the first case half 11 and the second case half 12, and the air inlet 15 5 and the air outlet 156 protrude upwards from the case upper walls 11 2 and 12 2 .
  • the J-shaped intake duct 15 has portions located within the first resonant chamber 17, connected to each other by a connecting wall 15 7 , and a slit-shaped opening 15 8 is formed therein for permitting the inside of the intake duct 15 to communicate with the inside of the first resonant chamber 17, the opening 15 8 being formed by cutting a portion near the air outlet 15 6 up to a location reaching the connecting wall 15 7 .
  • the intake duct 15 includes a communication pipe 15 9 at a portion located within the second resonant chamber 18, so that the inside of the intake duct 15 communicates with the inside of the second resonant chamber 18 through the communication pipe 159
  • Three ribs 11 9 , 11 10 and 11 11 are formed in parallel to one another within the first resonant chamber 17.
  • the ribs 11 9 , 11 10 and 11 11 are connected to the case upper walls 11 2 , the recess upper wall 16 1 and a case sidewall 11 8 and extend toward the mating faces 13.
  • Four subsidiary silencing chambers 19a, 19b, 19c and 19d are defined in a divided manner within the first resonant chamber 17 and open toward the mating faces 13.
  • the sizes and shapes of the four subsidiary silencing chambers 19a, 19b, 19c and 19d are different from one another, so that they each have different resonance frequencies.
  • a plurality of ribs 11 2 are provided in the wedge-shaped recess 16 of the first case half 11 to connect the recess upper wall 16 1 and the recess lower wall 16 2 to each other.
  • the second case half 12 has two water scupper bores 12 8 and 12 9 for discharging water from the first and second resonant chambers 17 end 18.
  • the water scupper bore 12 8 in the first resonant chamber 17 is provided in a front portion of the first resonant chamber 17 and hence, a sufficient distance can be ensured between the water scupper bore 12 8 and the opening 15 8 in the intake duct 15 to prevent the suction of water through the opening 15 8 .
  • the water scupper bore 12 9 in the second resonant chamber 18 is provided in a rear portion of the second resonant chamber 18 and hence, a sufficient distance can be ensured between the water scupper bore 12 9 and the communication pipe 15 9 of the intake duct 15 to prevent the suction of water through the communication pipe 15 9 .
  • the four subsidiary silencing chambers 19a, 19b, 19c and 19d open laterally (horizontally) and hence, the single water scupper bore 12 8 may be provided in the first resonant chamber 17.
  • the open air drawn by a negative intake pressure generated by the operation of the engine is supplied to the engine through the air cleaner 28, the intake silencer system R and the throttle body (not shown).
  • the inside of the intake duct 15 of the intake silencer system R communicates with the inside of the first resonant chamber 17 through the opening 15 8 and with the inside of the second resonant chamber 18 through the communication pipe 15 9 and hence, noises of two different frequency bands can be damped by the first and second resonant chambers 17 and 18 each functioning as a resonant-type silencer.
  • the second resonant chamber 18 having a large volume, dampens the noise of a relatively low frequency band, and the first resonant chamber 17 having a smaller volume than that of the second resonant chamber 18, dampens the noise of a higher frequency band.
  • each of the four subsidiary silencing chambers 19a, 19b, 19c and 19d separated from one another by the three ribs 11 9 , 11 10 and 11 11 within the first resonant chamber 17 functions as a side branch having a resonant effect and is capable of damping noise of a frequency band depending upon the size and shape thereof.
  • the case sidewall 11 8 of the first case half 11 is formed to extend along the fender 23 inclined with respect to the center plane P (see Fig.
  • the four subsidiary silencing chambers 19a, 19b, 19c and 19d are decreased in volume in the order of 19a ⁇ 19b ⁇ 19c ⁇ 19d and hence, are capable of damping the noises of a lower frequency band to a higher frequency band in the above-described order, respectively, as shown by a solid line in Fig.7.
  • a dashed line in Fig.7 shows a silencing effect provided when the first resonant chamber 17 dose not have the ribs 11 9 , 11 10 and 11 11 (namely, the subsidiary silencing chambers 19a, 19b, 19c and 19d). If the silencing effect shown by the dashed line is compared with that shown by the solid line, the noise damping effects (see obliquely lined areas) provided by the subsidiary silencing chambers 19a, 19b, 19c and 19d can be confirmed.
  • the ribs 11 9 , 11 10 and 11 11 integrally connect the three wall surfaces of the first resonant chamber 17, i.e., the case upper wall 11 2 , the recess upper wall 16 1 and the case sidewall 11 8 , and hence, it is possible to remarkably enhance the rigidity of the first case half 11, and prevent the generation of a radiated sound due to the vibration of the wall surfaces 11 1 , 11 8 and 16 1 .
  • the ribs 11 9 to 11 11 integrally connect the two largest opposed wall surfaces of the first resonant chamber 17 (namely, the upper-side case upper wall 11 2 and the lower-side recess upper wall 16 1 ) and hence, it is possible to effectively inhibit the radiated sound from the case upper wall 11 2 which is liable to be vibrated because of its large area, and the radiated sound from the recess upper wall 16 1 . Further, because the distance between the case upper wall 11 2 and the recess upper wall 16 1 is relatively small, the height of the ribs 11 9 to 11 11 can be reduced.
  • the rigidity of the ribs 11 9 to 11 11 themselves can be enhanced, and also the thickness of the ribs 11 9 to 11 11 can be reduced to minimize an increase in weight.
  • the ribs 11 9 to 11 11 are disposed at substantially equal distances, which is convenient for enhancement in rigidity of the first case half 11.
  • the first case half 11 and the second case half 12 are made from a synthetic resin by an injection molding, wherein the ribs 11 9 to 11 11 and 11 12 are formed in a direction perpendicular to the mating face 13 corresponding to a parting face of a mold for forming the first case half 11. Therefore, it is easy to release the formed first case half 11 from the mold, and the structure of the mold can be simplified. Also the four subsidiary silencing chambers 19a, 19b, 19c and 19d can be formed without subjecting the formed first case half 11 to a special treatment.
  • the intake duct 15 is clamped between and fixed to the mating faces 13 of the first case half 11 and the second case half 12, a special member such as a bolt and the like is not required for such fixing.
  • the mating faces 13 clamping the intake duct 15 are offset remotely from the ribs 11 9 to 11 11 with respect to the central portion of the intake silencer system R. Therefore, the subsidiary silencing chambers 19a to 19d having a sufficient volume can be formed without consideration of the interference of the ribs 11 9 to 11 11 with the intake duct 15.
  • the cross section of the intake duct 15 in the first embodiment is formed into a circular shape at its upstream portion and into an elliptic shape having a longer diameter in a direction parallel to the ribs 11 9 to 11 11 at its downstream portion
  • the cross section of the intake duct 15 in the second embodiment is formed into an elliptic shape having a shorter diameter in a direction parallel to the ribs 11 9 to 11 11 at both of its upstream and downstream portions.
  • the four subsidiary silencing chambers 19a, 19b, 19c and 19d are defined by the three ribs 11 9 , 11 10 and 11 11 in the embodiment, but the number of the ribs may be two or more.
  • the inclined wall surface of the vehicle body is not limited to the fender 23 illustrated in the embodiments and may be another wall surface of the vehicle body such as a bonnet and the like.
  • the cross sectional shape of the intake duct 15 need not be a mathematically precise elliptic shape, and may be a shape having both of a longer diameter and a shorter diameter.
  • the case of an intake silencer system includes a first case half and a second case half coupled to each other at mating faces, with an intake duct clamped between the mating faces.
  • the intake duct opens into a resonant chamber within the case, so that noise is damped by a resonant effect.
  • Three ribs are provided on an inner surface of the first case half, thereby defining four subsidiary silencing chambers each functioning as a side branch for producing a resonant effect to obtain a silencing effect in a wide frequency range.
  • the ribs also contribute to an enhancement in rigidity of the wall surfaces of the case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (7)

  1. Silencieux d'admission destiné à un moteur comprenant une chambre de silencieux d'admission (17), un conduit d'admission (15) en communication atmosphérique à une de ses extrémités et avec le moteur à l'autre de ses extrémités, ledit conduit d'admission (15) comportant une partie intermédiaire (158) s'ouvrant à l'intérieur de ladite chambre de silencieux d'admission (17), une pluralité de nervures (119 - 1111), et une pluralité de chambres de silencieux auxiliaires (19a - 19d) définies à l'intérieur de ladite chambre de silencieux d'admission (17) dans lequel des surfaces de paroi opposées (112, 169) de ladite chambre de silencieux d'admission (17) sont connectées de manière intégrale l'une à l'autre par ladite pluralité de nervures (119, 1111), lesdites chambres de silencieux auxiliaires (19a - 19d) étant fermées à une de leurs extrémités (118) et ouvertes à l'autre extrémité directement à l'intérieur de ladite chambre de silencieux d'admission (17), et dans lequel lesdites chambres de silencieux auxiliaires (19a - 19d) ont des fréquences de résonance différentes,
       caractérisé en ce que
       toutes les nervures (119 - 1111) sont connectées aux trois parois latérales (112, 161, 118) de la chambre de silencieux d'admission (17) et sont toutes rectilignes.
  2. Silencieux d'admission selon la revendication 1, dans lequel au moins une (112, 161) desdites surfaces de paroi de ladite chambre de silencieux d'admission (17) a une surface plus grande que la surface d'au moins l'autre surface de paroi (118) de ladite chambre de silencieux d'admission.
  3. Silencieux d'admission selon la revendication 1 ou la revendication 2, dans lequel ladite chambre de silencieux d'admission comprend une première moitié de carter (11) et une seconde moitié de carter (12) comportant des faces de contact (13), dans lequel lesdites faces de contact (13) de celles-ci sont accouplées l'une avec l'autre afin de maintenir ledit conduit d'admission (15), et la pluralité de chambres de silencieux auxiliaires (19a - 19d) sont définies dans la première moitié de carter (11) et ouvertes vers lesdites faces de contact (13).
  4. Silencieux d'admission selon les revendications 1, 2 ou 3, dans lequel ladite pluralité de chambres de silencieux auxiliaires (19a - 19d) est disposée sur un côté de ladite chambre de silencieux d'admission (17) et ledit conduit d'admission (15) est disposé sur l'autre côté de ladite chambre de silencieux d'admission (17) dans une direction horizontale.
  5. Silencieux d'admission selon la revendication 1, dans lequel ledit moteur est monté dans un véhicule, et dans lequel au moins une partie de ladite chambre de silencieux d'admission (17) est formée par une surface en pente (118) inclinée par rapport à un plan central (P) d'un corps de véhicule et s'étendant le long d'une surface de paroi (23) du corps de véhicule, et dans lequel lesdites chambres de silencieux auxiliaires (19a - 19d) ont des fréquences de résonance différentes en raison desdites nervures (119 - 1111) qui sont formées intégralement avec ladite surface en pente (118) afin de s'étendre de manière parallèle les unes par rapport aux autres vers ledit conduit d'admission (15).
  6. Silencieux d'admission selon la revendication 5, dans lequel ladite pluralité de chambres de silencieux auxiliaires (19a - 19d) est disposée sur un côté de ladite chambre de silencieux d'admission (17) et ledit conduit d'admission (15) est disposé sur l'autre côté de ladite chambre de silencieux d'admission (17) dans une direction horizontale, et des extrémités de pointe de ladite pluralité de nervures (119 - 1111) sont ajustées dans une direction longitudinale du corps de véhicule.
  7. Silencieux d'admission selon la revendication 6, dans lequel la coupe transversale dudit conduit d'admission (15) a une forme elliptique ayant un diamètre plus court dans une direction d'extension desdites nervures (119 - 1111).
EP19980114749 1997-08-13 1998-08-05 Silencieux d'admission Expired - Fee Related EP0897060B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP21841897 1997-08-13
JP21841697A JP3974977B2 (ja) 1997-08-13 1997-08-13 車両用吸気消音装置
JP218416/97 1997-08-13
JP21841897A JP3526729B2 (ja) 1997-08-13 1997-08-13 吸気消音装置
JP21841697 1997-08-13
JP218418/97 1997-08-13

Publications (3)

Publication Number Publication Date
EP0897060A2 EP0897060A2 (fr) 1999-02-17
EP0897060A3 EP0897060A3 (fr) 1999-09-08
EP0897060B1 true EP0897060B1 (fr) 2003-01-22

Family

ID=26522553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980114749 Expired - Fee Related EP0897060B1 (fr) 1997-08-13 1998-08-05 Silencieux d'admission

Country Status (6)

Country Link
EP (1) EP0897060B1 (fr)
CN (1) CN1095926C (fr)
CA (1) CA2244951C (fr)
DE (1) DE69810858T2 (fr)
MY (1) MY121318A (fr)
TW (1) TW366388B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1306539B1 (it) * 1998-04-03 2001-06-11 Polini Motori S P A Marmitta di scarico per motori a combustione interna
JP3542725B2 (ja) 1998-09-30 2004-07-14 株式会社 マーレ テネックス 自動車の吸気レゾネータ
BR9900463A (pt) * 1999-02-26 2000-08-29 Brasil Compressores Sa Abafador de sucção para compressor hermético
EP1132611B1 (fr) * 2000-03-10 2004-12-29 Tennex Corporation Silencieux à résonateur pour un moteur de véhicule
JP4101505B2 (ja) * 2001-12-05 2008-06-18 松下冷機株式会社 密閉型圧縮機
EP1715188A1 (fr) * 2005-04-22 2006-10-25 Kaeser Kompressoren GmbH Silencieux développé pour et destiné à un compresseur
JP4702832B2 (ja) * 2005-05-26 2011-06-15 タカタ株式会社 シートベルトリトラクタおよびこれを用いたシートベルト装置
JP4489645B2 (ja) * 2005-06-23 2010-06-23 本田技研工業株式会社 汎用エンジンのマフラ
DE102006060271A1 (de) * 2006-12-20 2008-06-26 Volkswagen Ag Luftfiltergehäuse für eine Brennkraftmaschine mit Schalldämpfung
CN101382103B (zh) * 2007-09-06 2013-01-16 光阳工业股份有限公司 摩托车空气滤清器结构
JP5791477B2 (ja) * 2011-11-25 2015-10-07 本田技研工業株式会社 内燃機関の排気装置
DE102017110227B4 (de) * 2017-05-11 2019-01-31 Steyr Motors Gmbh Kompensator zur verringerung von druckpulsationen im ansaugtrakt von verbrennungskraftmaschinen mit motoraufladung
FR3079001B1 (fr) * 2018-03-14 2021-01-08 Renault Sas Filtre a air avec protection acoustique
CN110425143B (zh) * 2019-07-31 2021-01-01 奇瑞商用车（安徽）有限公司 一种燃料电池车空气辅助系统消声装置及其安装结构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109751A (en) * 1976-08-26 1978-08-29 Deere & Company Noise silencer
US5424494A (en) * 1992-12-10 1995-06-13 Siemens Automotive Limited Noise-attenuating internal combustion engine air intake system
US5541374A (en) * 1994-03-31 1996-07-30 Tsuchiya Mfg. Co., Ltd. Resonator type silencer
JP2895407B2 (ja) 1994-12-01 1999-05-24 本田技研工業株式会社 吸気消音装置
GB9522724D0 (en) * 1995-11-06 1996-01-10 Acts Ltd A noise attenuator for an induction system or an exhaust system

Also Published As

Publication number Publication date
MY121318A (en) 2006-01-28
DE69810858T2 (de) 2003-06-05
TW366388B (en) 1999-08-11
EP0897060A2 (fr) 1999-02-17
CN1208120A (zh) 1999-02-17
CA2244951A1 (fr) 1999-02-13
DE69810858D1 (de) 2003-02-27
CN1095926C (zh) 2002-12-11
CA2244951C (fr) 2001-04-03
EP0897060A3 (fr) 1999-09-08

Similar Documents

Publication Publication Date Title
EP0897060B1 (fr) Silencieux d'admission
EP1087127B1 (fr) Dispositif d'admission pour moteur de véhicule
US6804360B1 (en) Air intake noise reduction apparatus for automotive vehicle
US5900595A (en) Intake silencer device
US6726737B2 (en) Air filter arrangement for a multi-cylinder combustion engine
US6199657B1 (en) Motor vehicle intake muffler duct
US5929397A (en) Intake silencer system
US7000583B2 (en) Intake apparatus
US6092499A (en) Intake pipe
US6308799B1 (en) Integrated muffler-bumper system
JP2000110678A (ja) 車両用エンジンの吸気消音装置
JPH08114120A (ja) ラジエータのファンシュラウド構造
JP3985446B2 (ja) エンジンの吸気系構造
JP3974977B2 (ja) 車両用吸気消音装置
JP3988293B2 (ja) エアーインテークダクト構造
JP7106987B2 (ja) 内燃機関のインテークマニホールド
JPH0921364A (ja) 車両用レゾネータ構造
JP3440128B2 (ja) 複合型消音器
JP3554487B2 (ja) レゾネータ一体型のエアクリーナ
JPH08158967A (ja) 車両の吸気装置
JPH036877Y2 (fr)
JP3473625B2 (ja) 内燃機関の吸気消音装置
JP2024070368A (ja) インテークマニホールド
JPH084611A (ja) 自動車のエンジン吸気系消音装置
JPH018415Y2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990917

AKX Designation fees paid

Free format text: DE FR GB

17Q First examination report despatched

Effective date: 20010907

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69810858

Country of ref document: DE

Date of ref document: 20030227

Kind code of ref document: P

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030715

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030730

Year of fee payment: 6

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030826

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20031023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040805

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040805

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050429

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST