US 11,788,481 B2
Internal combustion engine comprising a methane-DME (natural gas-dimethyl ether) fuel supply system and method for operating the internal combustion engine
Michael Bippes, Braunschweig (DE); Martin Schüttenhelm, Braunschweig (DE); and Christian Pastötter, Munich (DE)
Assigned to MAN Truck & Bus SE, Munich (DE)
Appl. No. 17/625,726
Filed by MAN Truck & Bus SE, Munich (DE)
PCT Filed Jul. 3, 2020, PCT No. PCT/EP2020/068758
§ 371(c)(1), (2) Date Jan. 7, 2022,
PCT Pub. No. WO2021/004911, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 102019118364.2 (DE), filed on Jul. 8, 2019.
Prior Publication US 2022/0290623 A1, Sep. 15, 2022
Int. Cl. F02D 19/06 (2006.01); F02D 19/08 (2006.01); F02D 19/10 (2006.01)
CPC F02D 19/0647 (2013.01) [F02D 19/0665 (2013.01); F02D 19/082 (2013.01); F02D 19/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An internal combustion engine comprising a first fuel vessel in which a dimethyl ether-containing first fuel and a second fuel vessel in which a methane-containing second fuel is stored, which are combined separately from one another in at least one combustion chamber of the internal combustion engine indirectly via at least one intake pipe of the internal combustion engine upstream of the at least one combustion chamber to give a fuel mixture which is combusted by self-ignition in the combustion chamber with addition of combustion air on the intake pipe side.