Flow control device with integrated pressure detector.

摘要

1. Control assembly comprising a linear displacement fuel flow feed regulator formed by a feed regulator piston (6) capable of sliding in a sleeve (5) having an upstream chamber (9) at the pressure P1 connected to the delivery side of a pump (3) and a downstream chamber (13) at the pressure P2 connected directly or indirectly to a user installation, the feed regulator piston (6) comprising a metering orifice (10) enabling communication of the two chambers (9, 13) through a passage (10, 11) having a section controlled by the sliding of the feed regulator piston (6) ; a linear displacement control valve (14) formed by a slide, capable of sliding in a sleeve and arranged to place in communication the two chambers situated respectively upstream (9) and downstream (13) in response to imbalance of the slide (14) caused by a change in the pressure drop P1 -P2 detected by a differential pressure detector (15), the downstream frontal chamber (33) of the control valve sleeve being connected to a particular one (9 or 13) of the two chambers (9, 13) of the flow feed regulator and the upstream frontal chamber (43) of the control valve sleeve being connected to a particular point of the circuit according to the type of pump used, in a manner such as to maintain constant the pressure drop P1 -P2 , the piston (6) of the flow feed regulator forming the sleeve of the control valve in the interior of which is slidably mounted the slide (14) of the control valve, characterised in that the differential pressure detector (15) is housed in a bore of the feed regulator piston (6).