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US 6,041,762 AGranted
Control module for natural gas fuel supply for a vehicle
AssigneeImpco Technologies, Inc.
InventorsNeel Sirosh, Syed Hussain, Eric G Adler, David Marley
Life of this patent
Estimating the term…
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AssigneeImpco Technologies, Inc.
InventorsNeel Sirosh, Syed Hussain, Eric G Adler, David Marley
Estimating the term…
The controls for controlling the supply of natural gas fuel for a vehicle are integrated together in a module which is located at the gas tank. Such controls include a high pressure regulator for lowering the pressure of the gas flowing from the tank and an electronically controlled solenoid valve which shuts off the gas flow when no fuel is required by the engine and when the gas pressure in the tank falls below a predetermined value. Also included in the module are a pressure sensor for providing signals for controlling the shutoff valve; a check valve which permits one way flow of gas into the gas tank when it is filled; a pressure relief mechanism responsive to the temperature and pressure sensors for allowing safe release of the gas to the outside should the temperature rise above a predetermined limit. The solenoid valve, as indicated above, responds to the sensors and additionally functions as an excess flow shut off valve to cut off gas flow from the tank should the gas line rupture or the module is sheared off.
In a vehicle having an engine capable of operating with gaseous fuel, a fuel tank having pressurized gaseous fuel therein and a fuel line for feeding gaseous fuel from the tank to the engine, the improvement comprising:
In a vehicle having an engine capable of operating on gaseous fuel, a fuel tank having pressurized gaseous fuel contained therein and a fuel line for feeding gaseous fuel from said tank to said engine, the improvement constituting a control module mounted on said tank for controlling the supply of gaseous fuel to said engine comprising:
Dependencies are inferred from the claim text.