Cazuela de Vaca (Beef and Pumpkin Stew) This hearty Chilean stew of beef, corn, and pumpkin is a one dish meal. The main ingredients are stewed in serving-sized pieces, so that each person receives a large piece surrounded by a broth with the other vegetables.
Quick Answer. A rotary vane vacuum pump works by using centrifugal force to turn blades against the circular surface of a cylinder whereby pockets of air are pushed from an inlet port to an outlet port as air pressure increases.
How a mechanical (that's what is in most of our collector cars) fuel pump works is deceptively simple. It consists of a rubber diaphragm that is sandwiched between two halves of the housing and actuated by some sort of arm. More about that later, but for now we must distinguish between pusher and puller pumps.