FLUID FLOW CONTOUR WITH DEVICES OF VARIABLE GEOMETRY AND WITHOUT VOLUMETRIC PUMP FOR TURBOMACHINE Russian patent published in 2018 - IPC F02C7/236 

FIELD: internal combustion engines.

SUBSTANCE: invention relates to a system (10) for supplying a fluid to turbomachine, and specifically to supply system (10) comprising low pressure pumping unit (101) designed to increase the pressure of a fluid directed to downstream circuit (50, 60). According to the invention, downstream circuit (50, 60) at inlet assembly (E) located between low-pressure pump unit (101) and high-pressure volumetric pump (102) is divided into feed loop (60) of injection system (62) and flow contour (50) with variable geometry devices. Injection circuit (60) of the injection system contains high-pressure volumetric pump (102). Flow contour (50) with variable geometry devices is designed to transport fluid through variable geometry devices (54) from inlet node (E) to discharge node (S), which connects specified flow contour (50) with upper flow path (100) between two pumps (101a, 111a) of a low pressure pumping unit.

EFFECT: invention makes it possible to further increase the pressure of the fluid and thus limit the interference as well as reduce the dissipation of thermal energy, which leads to an increase in the overall performance of the turbomachine.

13 cl, 4 dwg