Kawasaki Jukogyo Kabushiki Kaisha

Daichi Kubo

Hayato Iwasaki

Yuto Sakane

Yuji Kamei

Ryo Morihashi

Yoshishige Sakai

Hideaki Kurokawa

Tomohiro Ueno

Takayuki Imai

A method of improving corrosion resistance of a cylinder cover including a port that is an intake port or an exhaust port. The cylinder cover is configured such that an annular cooling water passage is formed between an inner peripheral surface of the port and a valve seat ring when the valve seat ring is inserted in the port. The method includes forming a weld overlay layer on each of sealed regions of the inner peripheral surface of the port by laser metal deposition using a welding material made of a nickel-based alloy, a copper alloy, stainless steel, or a titanium alloy, the sealed regions being positioned at both sides of the cooling water passage, respectively.

Cylinder cover and method of improving corrosion resistance thereof

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Kobe, Japan

Daichi Kubo