DIAPHRAGM PUMP Russian patent published in 2022 - IPC F04B43/12 

FIELD: oil, gas and coke-chemical industry.

SUBSTANCE: invention relates to diaphragm pumps and is intended for use in oil industry, in particular, when extracting fluid from a well, and can also be used in other industries and agriculture. Purpose of the invention is to simplify the design of the diaphragm pump, with the possibility of using it to create high pressures, increase reliability and durability. Diaphragm pump consists of a housing, inside of which there is a camshaft in contact with pistons acting on an elastic body through a liquid.

EFFECT: novelty is that the elastic body is made common for all pistons, in the form of a membrane or in the form of a tube; a check valve is also installed between the under-piston cavity and the above-piston cavity.

1 cl, 3 dwg