System, method, and apparatus for gas engine enhanced starting

A system, comprising:

• an internal combustion engine having an air intake;
• a pressurizing device disposed in the air intake;
• a gaseous fuel supply fluidly coupled to the air intake at a position upstream of the pressurizing device through a first fluid conduit and fluidly coupled to the air intake at a position downstream of the pressurizing device through a second fluid conduit that bypasses the pressurizing device;
• a valve disposed in the second fluid conduit, the valve having an electronic control input, the valve responsive to an electronic signal at the electronic control input;
• and
• an engine start indicating device electronically coupled to the electronic control input, the engine start indicating device structured to provide the electronic signal to open the valve in response to the engine being in a starting operating condition to supply gaseous fuel from the second fluid conduit for starting the engine while supplying gaseous fuel to the air intake upstream of the pressurizing device through the first fluid conduit, wherein the engine start indicating device is further structured to close the valve to cease gaseous fuel supply from the second fluid conduit in response to the engine transitioning from the starting operating condition to a running operating condition where the engine is entirely supplied with gaseous fuel from the first fluid conduit.

An apparatus, comprising:

• a pressurizing device disposed in an air intake for an internal combustion engine;
• a first fluid conduit fluidly coupling a gaseous fuel supply to an upstream side of the pressurizing device;
• a second fluid conduit including a valve fluidly coupled on an upstream side to the gaseous fuel supply and fluidly coupled on a downstream side to the air intake at a position downstream of the pressurizing device, the valve having an electronic control input, the valve structured to open in response to an electronic signal at the electronic control input;
• and
• an engine start indicating device structured to provide the electronic signal in response to the internal combustion engine being in a starting operating condition to open the valve and supply gaseous fuel from the second fluid conduit for starting the engine while supplying gaseous fuel to the air intake at the upstream side of the pressurizing device through the first fluid conduit, wherein the engine start indicating device is further structured to close the valve to cease gaseous fuel supply from the second fluid conduit in response to the engine transitioning from the starting operating condition to a running operating condition where the engine is entirely supplied with gaseous fuel from the first fluid conduit.

A method, comprising:

• fluidly coupling a gaseous fuel supply for an engine to an air intake of the engine upstream of a pressurizing device in the air intake with a first fuel conduit;
• fluidly coupling an upstream side of a valve in a second fuel conduit to the gaseous fuel supply for the engine;
• fluidly coupling a downstream side of the valve to the air intake of the engine at a position downstream of the pressurizing device so that the second fuel conduit bypasses the pressurizing device;
• in response to starting the engine, opening the valve to route gaseous fuel from the gaseous fuel supply through the second conduit to the air intake at the position downstream of the pressurizing device for a period of time and supplying gaseous fuel to the air intake through the first fluid conduit upstream of the pressurizing device while the engine is in a starting condition;
• and
• in response the engine transitioning from the starting condition to a running operating condition over the period of time, closing the valve at the end of the period of time to cease gaseous fuel supply from the second fluid conduit so the engine in the running operating condition is entirely supplied with gaseous fuel from the first fluid conduit upstream of the pressurizing device.