Design factors involved in the design of domestic motored appliances

In all domestic motored appliances, there are certain general design factors to which more detailed design factors are related, depending upon the appliance involved. In this paper the various design factors are enumerated and explained in a way which it is hoped will be of assistance to the many thousands of engineers engaged in the design of motored appliances. Curves show typical speed-torque characteristics of motors used to drive various types of appliances. Tables show the types of motors used with different types of appliances and the principal factors causing noise. General design factors involved in motored appliances are discussed as a group.