Patent Number: 7,398,761

Title: Knocking control device for multicylinder engine

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.

Inventors: Machida; Kenichi (Saitama, JP), Furuya; Masashi (Saitama, JP)

Assignee: Honda Motor Co., Ltd.

International Classification: F02P 5/15 (20060101); G06F 19/00 (20060101)

Expiration Date: 2020-07-15 0:00:00