Fuel bypass system for gaseous-fueled engine
AssigneeGenerac Power Systems, Inc.
InventorsSteven W. Craig, Andrew P. Sibrel, Aaron J. Baska, Douglas R. Clement
Life of this patent
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Abstract
A method of operating a forced induction gaseous-fueled engine includes mixing gaseous-fuel and engine intake air to form a mixture at a fuel mixer. The method includes delivering the mixture to an intake manifold by at least partially bypassing a charge air cooler.
Claims23
A method of operating a forced induction gaseous-fueled engine, the engine comprising a bypass line, a charge air cooler, a throttle valve, an intake manifold, and a plurality of cylinders, the method comprising:
- at least partially closing the throttle valve during a bypass period to deliver fuel during engine start through the bypass line to the intake manifold for delivery to the plurality of cylinders while bypassing the charge air cooler and the throttle valve, wherein the bypass line is upstream from an inlet of the charge air cooler and downstream from the throttle valves.
A fuel bypass arrangement for a forced induction gaseous-fueled engine, the fuel bypass arrangement comprising:
- a bypass line;
- a charge air cooler;
- a throttle valve;
- an intake manifold;
- a plurality of cylinders;
- and a controller configured to at least partially close
- the throttle valve while fuel is delivered during engine start through the bypass line to the intake manifold for delivery to the plurality of cylinders, bypassing the charge air cooler and the throttle valve, wherein the bypass line is upstream from an inlet of the charge air cooler and downstream from the throttle valves.
A power backup system comprising a forced induction gaseous-fueled engine, the engine comprising:
- a bypass line, a charge air cooler, a throttle valve, an intake manifold, a plurality of cylinders, and a controller configured to at least partially close
- the throttle valve while fuel is delivered from a fuel source during engine start through the bypass line to the intake manifold for delivery to the plurality of cylinders, bypassing the charge air cooler and the throttle valve, wherein the bypass line is upstream from an inlet of the charge air cooler and downstream from the throttle valve.
Dependencies are inferred from the claim text.