Browse Publications Technical Papers 2009-32-0055
2009-11-03

Development of a Small Low-cost Fuel Injector to Overcome Diversification of Requirements in Global Markets 2009-32-0055

The applicability in adverse environment is essential for an injector for engines to use in motorcycles or power products. In view of that, what was considered most important in the development of this product was the applicability in diversifying environment, which was assumed to become even more adverse in the future. Accordingly developed is the injector that is more corrosion-resistant and waterproof.
To improve corrosion resistance, an oxide layer is created by the surface reforming referred to as passivation. To attain steady coating, optimum passivation conditions such as the temperature, time and chemical-substance concentration are selected. Thus, the new injector that can cope with a high-alcohol-content fuel has been developed.
To improve water-sealing, the double-resin-molding structure is employed in the coil for better adhesion of resin. The choice of optimum molding conditions ensures better sealing.

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