Patent ID: 8413642

Claim:
A genset assembly integrated with an open loop electronic fuel injection system, comprising: a genset assembly that includes an engine that runs on gaseous fuel that is liquid petroleum gas, a generator that is driven by the engine, and an intake system that receives air and is in fluid communication with the engine; and an open loop electronic fuel injection system that includes a fuel injector that injects the fuel into the intake system so as to form an air/fuel mixture; an electronic control unit; an air sensor that is at least one selected from the group consisting of an air flow sensor, a manifold air temperature sensor and a manifold absolute pressure sensor; and a gaseous fuel regulator connected via a fuel line to the fuel injector; the genset assembly and the open loop electronic fuel injection system being integrated such that the electronic control unit and the fuel injector are linked via a first communication circuitry and the electronic control unit and the air sensor are linked via a second communication circuitry, wherein data from the air sensor is transmitted to the electronic control unit via the second communication circuitry, wherein the electronic control unit is configured to determine a requested relative air to fuel ratio based on a data correlation of data from the air sensor against data in a lookup table of the electronic control unit, the requested relative air to fuel ratio being a ratio of the actual air to fuel ratio to a stoichiometric air to fuel ratio, and based on the determined requested relative air to fuel ratio, the electronic control unit is configured to actuate the fuel injector via the first communication circuitry such that the gaseous fuel in an amount sufficient for obtaining an air/fuel mixture that is at the determined requested relative air to fuel ratio is injected into the intake system, wherein the engine provided with the air/fuel mixture that is at the determined requested relative air to fuel ratio is capable of starting and operating from a cold state, wherein the engine runs rich of stoichiometry, and wherein the open loop electronic fuel injection system is configured to operate with the gaseous fuel.