Fluid circuit and a process for controlling a flow of fluid supplied to at least one equipment

Abstract

The invention relates to a fluid circuit () comprising: —a supply line () for carrying a fluid from a pump () connected to a fluid tank () to an equipment (), the supply line having a portion which is divided into a main line () including a heat exchanger (), and a by-pass line () for by-passing said heat exchanger; —a first valve () for controlling the respective fluid flows in the main line () and in the by-pass line (), and a first control device () for controlling the first valve () depending on a first parameter (T) of the fluid; —a pressure regulation circuit for carrying fluid from the supply line () towards the fluid tank (), said pressure regulation circuit comprising a pressure regulation valve () for controlling the flow of fluid directed back to the fluid tank (); wherein the pressure regulation circuit comprises: —a first recirculation line () branching from the supply line () downstream from the by-pass line outlet (); —a second recirculation line () branching from the supply line () upstream from the by-pass line inlet (); —a second valve () for controlling the respective fluid flows in the first recirculation line () and in the second recirculation line (), and a second control device () for controlling the first valve () depending on a second parameter (T) of the fluid.