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US 11,085,368 B2Granted
Internal combustion engine arrangement
AssigneeVolvo Truck Corporation
InventorsArne Andersson, Staffan Lundgren
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AssigneeVolvo Truck Corporation
InventorsArne Andersson, Staffan Lundgren
Estimating the term…
The present invention relates to an internal combustion engine arrangement for a vehicle, said internal combustion engine arrangement comprising a combustion cylinder housing a reciprocating combustion piston, and an expansion cylinder housing a reciprocating expansion piston, said expansion cylinder being arranged in downstream fluid communication with the combustion cylinder for receiving combustion gases exhausted from the combustion cylinder, wherein the internal combustion engine arrangement further comprises a pressure tank arranged in fluid communication with the expansion cylinder, wherein the internal combustion engine arrangement is further arranged to be operated in a first operating mode in which compressed gas generated in the expansion cylinder is delivered to the pressure tank, and a second operating mode in which compressed gas contained in the pressure tank is delivered from the pressure tank to the expansion cylinder.
An internal combustion engine arrangement for a vehicle, the internal combustion engine arrangement comprising a combustion cylinder housing a reciprocating combustion piston, and an expansion cylinder housing a reciprocating expansion piston, the expansion cylinder being arranged in downstream fluid communication with the combustion cylinder for receiving combustion gases exhausted from the combustion cylinder, wherein the internal combustion engine arrangement further comprises a pressure tank arranged in fluid communication with the expansion cylinder, wherein the internal combustion engine arrangement is further arranged to be operated in a first operating mode in which compressed gas generated in the expansion cylinder is delivered to the pressure tank, and a second operating mode in which compressed gas contained in the pressure tank is delivered from the pressure tank to the expansion cylinder, wherein the internal combustion engine arrangement further comprises a heat regenerator arranged in fluid communication between the expansion cylinder and the pressure tank, the heat regenerator being arranged to absorb heat from the compressed gas generated by the expansion cylinder delivered to the pressure tank, and to release the heat when the compressed gas is transported from the pressure tank to the expansion cylinder.
A method for controlling an internal combustion engine arrangement, the internal combustion engine arrangement comprising a combustion cylinder housing a reciprocating combustion piston, an expansion cylinder housing a reciprocating expansion piston, the expansion cylinder being arranged in downstream fluid communication with the combustion cylinder for receiving combustion gases exhausted from the combustion cylinder, a pressure tank arranged in fluid communication with the expansion cylinder, and a heat regenerator arranged in fluid communication between the expansion cylinder and the pressure tank, wherein the method comprises the steps of:
A vehicle comprising an internal combustion engine arrangement, the internal combustion engine arrangement comprising a combustion cylinder housing a reciprocating combustion piston, and an expansion cylinder housing a reciprocating expansion piston, the expansion cylinder being arranged in downstream fluid communication with the combustion cylinder for receiving combustion gases exhausted from the combustion cylinder, wherein the internal combustion engine arrangement further comprises a pressure tank arranged in fluid communication with the expansion cylinder, wherein the internal combustion engine arrangement is further arranged to be operated in a first operating mode in which compressed gas generated in the expansion cylinder is delivered to the pressure tank, and a second operating mode in which compressed gas contained in the pressure tank is delivered from the pressure tank to the expansion cylinder, wherein the vehicle further comprises a second prime mover different from the internal combustion engine arrangement, wherein the vehicle is configured to be operated in:
Dependencies are inferred from the claim text.