SYSTEMS AND METHODS FOR REGULATING FUEL SYSTEMS

摘要

The invention provides systems and methods for regulating, monitoring and controlling fuel distribution in a fuel system. Some embodiments provide systems and methods for regulating fuel distribution in an alternative fuel system, such as a natural gas vehicle fuel system. The fuel distribution may be regulated mechanically, electronically, or a combination thereof. In some embodiments, the fuel distribution can be regulated by a regulator for high pressure operation with a bypass path for low pressure operation.

主权项

1. A method for operating a fuel system on a vehicle, the method comprising:
providing the fuel system, wherein the fuel system comprises:
a gaseous fuel containing device of the vehicle;a fuel flow path from the gaseous fuel containing device to an engine of the vehicle, wherein the fuel flow path is configured to deliver a fuel from the gaseous fuel containing device to the engine, and wherein the fuel flow path comprises a pressure regulator and an alternative fuel flow path for bypassing the pressure regulator; and opening the alternative fuel flow path below a predetermined fuel pressure, thereby bypassing the pressure regulator.