Combustion engine arrangement and method
AssigneeVolvo Truck Corporation
InventorFredrik Rahm
Life of this patent
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Abstract
A combustion engine arrangement comprising a combustion engine has an intake manifold, and an exhaust manifold the combustion engine arrangement comprising a turbocharged air intake system fluidly connected to said intake manifold. The turbocharged air intake system has an air pump; and an exhaust gas recirculation (EGR) system fluidly connecting said exhaust manifold to said intake manifold, the EGR system comprising an EGR pump. The EGR pump and the air pump are arranged to be independently controllable so as to enable independent control the exhaust gas inflow and the air inflow to the intake manifold of the combustion engine.
Claims13
A combustion engine arrangement adapted to use hydrogen as a fuel, comprising a combustion engine having an intake manifold, and an exhaust manifold,
- the combustion engine arrangement comprising:
- a turbocharged air intake system fluidly connected to said intake manifold, the turbocharged air intake system comprising an air pump;
- and
- an exhaust gas recirculation (EGR) system fluidly connecting said exhaust manifold to said intake manifold, the EGR system comprising an EGR pump, wherein
- the EGR pump and the air pump are arranged to be independently controllable so as to enable independent control of the exhaust gas inflow and the air inflow to the intake manifold of the combustion engine, and
- said EGR pump and said air pump are displacement pumps without internal compression, wherein a volume is displaced for each revolution of the pump, and
- said EGR pump and said air pump are located immediately upstream the intake manifold.
Dependencies are inferred from the claim text.