Pressure regulation module for fuel injection assembly of internal combustion engine, has valve permitting passage of fluid from chamber towards another chamber when upstream pressure in latter chamber is less than vaporization pressure

摘要

The module (10) has an enclosure (101) defining an internal volume partitioned into chambers. The wall has orifices to permit a hydraulic connection between the chambers based on a passing or blocked state of a closing device. The device has a valve for permitting the passage of fluid from one of the chambers towards another chamber when an upstream pressure in the former chamber is greater than a determined return pressure. Another valve permits the passage of fluid from latter chamber towards the former chamber when the pressure in the chamber is less than vaporization pressure.