Another way of pumps began with the invention of the so-called rotary pumps, had one rotor, which were also described Rammell. Pump with eccentric rotor is the prototype of modern sliding pumps. In 1624 I. Leyrehon in the book "La recreation mathematiqae" described the rotatory rotor pump, which can be regarded as the prototype of modern gear pumps. Later came other varieties, and rotary pumps, representative of which is, for example, labyrinthine pump, already established in the 50-ies. 20. The first vortex pump, called the centrifugal self-priming, was proposed in 1920 in Germany, engineer S. Hinshaw, and then appeared and others species.
The idea of using centrifugal force, the liquid appeared in 15. Even Leonardo da Vinci and, apparently independently of it was implemented in the early 17 century. Blankano French engineer, to build a simple centrifugal pump for water, which served as a working body of the open spinning wheel. One of the first centrifugal pump with volute casing and the four-bladed impeller was proposed by French scientist J. Papen, who perfected the design previously known blowers "Hessians". In the late 19 century. When there were high-speed heat, and then electric motors, centrifugal pumps have wider application. In 1838 Russian engineer A. Sablukov established on the basis of his earlier fan built single-stage centrifugal pump, in 1846 an American engineer, Johnson proposed a multistage horizontal pumps, in 1851 a similar pump was set up in the UK patent Guinn (Guinn pump), in 1899 a Russian engineer VA Pushechnikov developed a vertical multistage pump for drilling wells up to 250 m. This pump is built in Paris at the factory Farcot (pump FARC), was intended for water supply in Moscow, had a supply of 200 m3 / h, the efficiency to 70%.
