Title:
INTAKE MANIFOLD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2000/077386
Kind Code:
A1
Abstract:
An intake manifold comprising a plurality of intake pipes (3) connecting a collector to an intake pipe mounting part, wherein the intake pipes (3) bent in specified shapes, respectively, are formed by bending a generally straight metallic dual tube, set so that a clearance (3c) between an outside tube (3a) and an inside tube (3b) is 0.2 mm or less, to bring the outside tube (3a) into contact partially with the inside tube (3b) at its middle part, whereby each intake pipe (3) is structured so that the outside tube (3a) is brought into contact partially (slidably each other) with the inside tube (3b) at its middle part, and an air layer of approx. 0.2mm or less in thickness is formed between the outside tube (3a) and the inside tube (3b) in those areas other than a contact part (3e).
Inventors:
HADA MASATOSHI (JP)
SUNAGA YASUO (JP)
SUNAGA YASUO (JP)
Application Number:
PCT/JP2000/003888
Publication Date:
December 21, 2000
Filing Date:
June 14, 2000
Export Citation:
Assignee:
AICHI MACHINE IND (JP)
SAN O IND CO (JP)
HADA MASATOSHI (JP)
SUNAGA YASUO (JP)
SAN O IND CO (JP)
HADA MASATOSHI (JP)
SUNAGA YASUO (JP)
International Classes:
F02B77/11; F02B77/13; F02M35/10; F02M35/104; F02M35/12; (IPC1-7): F02M35/10
Foreign References:
| JPH10252456A | 1998-09-22 | |||
| JPH11139318A | 1999-05-25 | |||
| JPH1122454A | 1999-01-26 |
Other References:
See also references of EP 1186769A4
Attorney, Agent or Firm:
Shimizu, Yoshihisa (Aoi 1-chome Higashi-ku, Nagoya-shi Aichi, JP)
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