Method and an apparatus for controlling an internal combustion engine with a high pressure gas injection
AssigneeVolvo Truck Corporation
InventorsIngemar Magnusson, Lennart Andersson
Life of this patent
Estimating the term…
Abstract
A method is provided for controlling a high pressure gas injection internal combustion engine including at least one cylinder, the method including supplying a first gaseous fuel from a first gas injection system and injecting the first gaseous fuel in at least one of the at least one cylinder. The method includes converting waste gas from the first gas injection system to a second fuel, and injecting the second fuel obtained by the conversion into at least one of said at least one cylinder.
Claims38
A method for controlling a high pressure gas injection internal combustion engine comprising at least one cylinder, the method comprising:
- supplying a first gaseous fuel from a first gas injection system,
- injecting the first gaseous fuel in at least one of the at least one cylinder,
- converting waste gas from the first gas injection system to a second fuel that is different from the first gaseous fuel, and
- injecting the second fuel obtained by the step of converting waste gas into at least one of the at least one cylinder.
A fuel system for a high pressure gas injection internal combustion engine comprising at least one cylinder, the fuel system comprising:
- a first gas injection system for injecting a first gaseous fuel into at least one of the at least one cylinder,
- a second fuel injection system arranged to receive waste gas from the first gas injection system,
- characterised in that the second fuel injection system comprises a fuel converter for converting the received waste gas to a second fuel that is different from the first gaseous fuel, and in that the second fuel injection system is arranged to inject the second fuel into at least one of the at least one cylinder.
Dependencies are inferred from the claim text.