Module for managing mass flow and dampening pressure pulsations in a gaseous fuel supply line

摘要

A module for managing mass flow and dampening pressure pulsations in the supply line of a gaseous fuelled internal combustion engine comprises a hollow body defining an expanded volume that is fluidly connected directly to a pressure sensor and a temperature sensor. The module is placed along the supply line of a gaseous fuel engine between a fuel pressure increasing device and the fuel rail that supplies fuel to the engine. The module can comprise a filter that filters the impurities from the gaseous fuel supplied to the engine and an overpressure protection device that can vent some of the gaseous fuel from the module to protect it from over-pressurization.

主权项

1. A multifunctional module for managing mass flow and dampening pressure pulsations in a gaseous fuel supply line of an internal combustion engine, said module comprising:
(a) a hollow body having an inlet and an outlet, said hollow body defining an expanded volume through which fuel flows between said inlet and said outlet, (b) a pressure sensor mounted on said body, said pressure sensor measuring the pressure within said expanded volume, and (c) a temperature sensor mounted on said body, said temperature sensor measuring the temperature from within said expanded volume, wherein said module is located along said gaseous fuel supply line between a pressure increasing device and a fuel rail of said engine such that a gaseous fuel supplied from said pressure increasing device flows through said module before it is supplied to said fuel rail and wherein respective pressure and temperature measurements taken by said pressure and temperature sensors are communicated to a controller which stops or activates said pressure increasing device to maintain a pressure within said module within a predetermined pressure range.