Improvements in or Relating to Vehicle Noise

(19)

(11)

EP 1 865 187 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	24.12.2008 Bulletin 2008/52

(43)	Date of publication A2:
	12.12.2007 Bulletin 2007/50

(21)	Application number: 07109532.7

(22)	Date of filing: 04.06.2007

(51)

International Patent Classification (IPC):

F02M 35/12^(2006.01)

F02M 35/10^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

(30)

Priority:

05.06.2006 JP 2006155945

(71)	Applicant: Nissan Motor Company Limited
	Kanagawa-ku Yokohama-shi, Kanagawa 221-0023 (JP)

(72)	Inventors:
	Takeuchi, Shinichi 560-2, Okatsukoku Atsugi-shi Kanagawa 243-0192 (JP) Shimada, Hiroshi 560-2, Okatsukoku Atsugi-shi Kanagawa 243-0192 (JP) Sasaoka, Takeharu 560-2, Okatsukoku Atsugi-shi Kanagawa 243-0192 (JP)

(74)	Representative: Holmes, Matthew William et al
	Nissan Motor Manufacturing (UK) Ltd Intellectual Property Department Nissan Technical Centre Europe Cranfield Technology Park Cranfield, Bedfordshire MK43 0DB Cranfield, Bedfordshire MK43 0DB (GB)

(54)	Improvements in or Relating to Vehicle Noise

(57) A device (1) for amplifying the suction noise of a vehicle is disclosed. The device (1) comprises an intake duct (10), a connecting pipe (12) and a composite membrane (16). The intake duct (10) is for feeding air to an engine intake port. A connecting pipe (12) is connected to an interior of the intake duct (10). The composite membrane (16) is positioned within the connecting pipe (12). The composite member (16) blocks an interior passage formed in the connecting pipe (12). The composite member (16) further includes at least two elastic membranes with one of masses and rigidities that different from each other. A method is also disclosed.

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