Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Reexamination Certificate
2008-06-13
2009-12-15
Kamen, Noah (Department: 3741)
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
C123S184420, C123S184470
Reexamination Certificate
active
07631628
ABSTRACT:
An engine intake control system that includes a first intake passage that has an upstream end portion and a downstream end portion opening in a surge chamber, a second intake passage that has an upstream end portion opening in the surge chamber so as to oppose the downstream end portion of the first intake passage across a gap, and a sleeve-shaped valve body slidably fitted around the downstream end portion of the first intake passage and moving between a first position in which it is distanced from the upstream end portion of the second intake passage and a second position in which it is in contact with the upstream end portion, wherein a linear motion guide bearing system is provided between an intake manifold and the valve body, a rail of the linear motion guide bearing system extending in a direction of movement of the valve body is secured to a support post fixedly provided on the intake manifold, and a slider movably straddle-mounted on the rail is secured to the valve body. Thereby an engine intake control system can realize smooth movement of a valve body even with lower machining precision for sliding faces of a first intake passage end portion and the valve body.
REFERENCES:
patent: 5092284 (1992-03-01), Yamada
patent: 7-224670 (1995-08-01), None
Hirata Makoto
Kawamata Fumio
Ota Shigehiko
Arent & Fox LLP
Kamen Noah
Keihin Corporation
LandOfFree
Engine intake control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine intake control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine intake control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4099521