In the case of the motor it is the rotor and the stator and for the pump it is the impeller and the volute (or diffuser). Of course the friction produced by bearings and other mechanical components (seals, stuffing box, etc) also affect pump efficiency, but the impeller and volute have the greatest influence. Lets start our investigation of centrifugal pump efficiency with the impeller.
The differences are minor: 1  A blazer refers to a sportcoat that is made of navy wool, with brass buttons. 2  A suit jacket is the jacket part of a suit. 3  A sport coat is a jacket, cut like a suit jacket or blazer, that doesn't have an accompanying pair of pants - it's a standalone jacket.
One of the first things that you will need to know when preparing for a night out on the town is the dress code. Is a jacket required? There is a difference between a blazer and a suit jacket, so be mindful when preparing for the occasion. Many men are confused about what makes a blazer different from a suit jacket. There are a few surefire ways to lessen the blurring of these all-important lines.