Title:
EXHAUST GAS RECIRCULATING DEVICE IN INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3809696
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the dispersion of EGR gas amount of each cylinder, by placing a duplex tube in an intake manifold, and forming an inner hole at a position corresponding to each cylinder in an inner tube which is connected with an EGR pipe and an outer hole at a position corresponding to the inner hole in an outer tube which is attached to the inner tube such that it can slide.
SOLUTION: Because duplex tube 3 changes positioning relation between an outer hole 320 and an inner hole 310 by rotating an outer tube 32 in relation with a fixed inner tube 31, opening area of an exhaust gas nozzle 30 can be changed. Fine adjustment of EGR gas amount can be performed. When EGR gas 8 is supplied, a stepping motor 6 is rotated to fit the inner hole 310 to the outer hole 320. Therefore, each exhaust gas nozzle 30 is formed at a position corresponding to each cylinder 40, and EGR gas 8 can be exhausted in the condition that relative dispersion for each cylinder 40 is small.
Inventors:
Satoru Maeda
Application Number:
JP9149497A
Publication Date:
August 16, 2006
Filing Date:
March 25, 1997
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
F02M25/07; F02M35/104; F02M35/10; (IPC1-7): F02M25/07; F02M25/07; F02M35/104; F02M35/10
Domestic Patent References:
| JP61021851U | ||||
| JP1503722A | ||||
| JP11504411A | ||||
| JP58146852U | ||||
| JP61006632U | ||||
| JP6025545U | ||||
| JP7042422U |
Attorney, Agent or Firm:
Yoshiyasu Takahashi
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