Knocking control device for multicylinder engine

Details Knocking control device for multicylinder engine Knocking control device for multicylinder engine

2008-07-15

2008-07-15

Vo, Hieu T (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C701S111000

Reexamination Certificate

active

07398761

ABSTRACT:
To reliably prevent knocking in all of the cylinders of a multicylinder engine by detecting an output signal from a knock sensor provided for only one of the cylinders. A cylinder barrel is formed with a knock sensor base on the side surface of only the third cylinder and a vibration type knock sensor is mounted on the knock sensor base. A water jacket is formed in an upper portion of the wall of the cylinder barrel. The knock sensor base is formed below the water jacket so as to prevent a problem such that knocking vibrations may be absorbed by the cooling water in the water jacket to cause a reduction in sensitivity of the knock sensor.

REFERENCES:
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patent: 5215058 (1993-06-01), Sakakibara et al.
patent: 7159565 (2007-01-01), Demura et al.
patent: 59-25081 (1984-02-01), None
patent: 62-51758 (1987-03-01), None
patent: 3-164552 (1991-07-01), None
patent: 2002-155795 (2002-05-01), None

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