Kawasaki Jukogyo Kabushiki Kaisha

Haruki Hino

Yukio Nishiyama

Junzo Fujioka

Minoru Yokoyama

Yuji Matsuzaki

Takuya Miyashita

Masayuki Sakiyama

A plural number of types of material powders are accommodated in an accommodation chamber in a mixed state and the material powders are continuously subjected to a self-exothermic reaction inducing chemical reactions between the material powders caused by heat of reaction released when the mixed material powders synthesize. The synthesized material of high temperature due to the self-exothermic reaction is pressed by utilizing an electromagnetic force just after the finish of the self-exothermic reaction. The exothermic reaction is caused by an ignition circuit including an ignition electrode and the electromagnetic force is generated by an electromagnetic force generation circuit including an electric current inducing means. These circuits are connected through and regulated by a relay circuit. Thus the synthetic products of fine structure are obtained.

Method and apparatus for manufacturing synthetic products

A composite follow valve for internal combustion engines such as an intake and an exhaust valve and the method for producing the same are disclosed. The valve is produced by integrating into the whole a valve head portion molded from a lightweight, heat-resistant material selected from a group of titanium alloys and titanium-aluminium alloys, a stem portion molded from a high-strength alloy steel, made hollow inside to reduce weight, and a stem end portion molded from a hard material selected from a group of martensitic stainless steel, silicon nitride and silicon carbide ceramics. Since the different materials of the separate valve components are selected to meet the requirements of their particular functions and operating condition under which they are placed. Also, because of this separate arrangement, the valve can be produced at a relatively reduced cost, since the use of expensive materials is saved. Furthermore, the valve is molded, not in a whole body, but in separate components, there is no use for expensive isothermal forging machines as in the case of prior art production methods.

Composite valve for reciprocating engines and method for manufacturing

Growing community of inventors

Kobe, Japan

Haruki Hino