US 12,085,030 B2
Internal combustion engine and a method for operating such an internal combustion
Wolfgang Fimml, Tirol (AT); and Nikolaus Spyra, Innsbruck (AT)
Assigned to Innio Jenbacher GmbH & Co OG, Jenbach (AT)
Appl. No. 18/038,984
Filed by INNIO Jenbacher GmbH & Co OG, Jenbach (AT)
PCT Filed Nov. 30, 2020, PCT No. PCT/AT2020/060427
§ 371(c)(1), (2) Date May 26, 2023,
PCT Pub. No. WO2022/109633, PCT Pub. Date Jun. 2, 2022.
Prior Publication US 2023/0417201 A1, Dec. 28, 2023
Int. Cl. F02B 19/10 (2006.01); F02B 29/04 (2006.01); F02D 13/02 (2006.01); F02D 19/06 (2006.01); F02D 41/00 (2006.01)
CPC F02D 41/0027 (2013.01) [F02B 19/1028 (2013.01); F02B 29/0406 (2013.01); F02D 13/0234 (2013.01); F02D 19/0607 (2013.01); F02D 19/0644 (2013.01); F02D 19/0647 (2013.01); F02D 41/0007 (2013.01); F02D 2041/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
an internal combustion engine comprising a pre-chamber having a pre-chamber intake system and a main combustion chamber having a main combustion chamber intake system, wherein by use of the pre-chamber intake system and the main combustion chamber intake system a predetermined amount of energy of fuel can be supplied to the main combustion chamber for a combustion; and
a control unit is configured to control the pre-chamber intake system and the main combustion chamber intake system according to the following operation modes:
a first operation mode, in which a majority of a fuel energy amount for the combustion in the main combustion chamber is supplied directly to the main combustion chamber by use of the main combustion chamber intake system, and
a second operation mode, in which a majority of the fuel energy amount for the combustion in the main combustion chamber is supplied via the pre-chamber to the main combustion chamber by use of the pre-chamber intake system;
wherein, in the first operation mode, the control unit is configured to provide the main combustion chamber with a first fuel and, in the second operation mode, with a second fuel, wherein the first fuel and the second fuel have a different fuel quality;
wherein, in the first operation mode, the pre-chamber intake system is fluidically coupled to the main combustion intake system and the same first fuel and/or air-fuel mixture is separately delivered to the main combustion chamber and the pre-chamber.