Internal combustion engine with injection device arranged in cylinder bore and method of operation thereof
A technology for an internal combustion engine and an injection device, which is applied in the directions of a combustion engine, a fuel injection device, an engine element, etc., can solve problems such as the area that is not suitable for being arranged in a concave manner in a cylinder bore, etc.
Active Publication Date: 2021-07-20
FORD GLOBAL TECH LLC
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Problems solved by technology
For example, the concepts described above generally relate to injection nozzles arranged in the cylinder head and protruding into the combustion chamber, and are not suitable for being arranged in a concave manner in the region of the cylinder bore, that is to say for being located in a recess, ie Injection device for the removal or reduction of fuel or coking residues located in the dead volume
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[0044] Mixture preparation in direct injection engines presents challenges because of the negative effects caused by any wall wetting. If the fuel spray hits the cylinder liner, the oil is potentially diluted (eg, the fuel can collect and then drain to an oil pan where the oil can be diluted). Excessive soot formation can occur if the fuel spray strikes the piston. One difficulty with centrally mounted fuel injectors in the cylinder head is the alignment of the flow directions of the fuel and air. The lack of relative motion between the two fuel and air causes a long duration of evaporation, a high penetration length of the spray and thus a high probability of wall wetting.
[0045] Injectors on the side of the cylinder head, so-called side-mounted direct injectors, do not take full advantage of side injection due to the injector's proximity to the intake valve and have limited freedom in positioning due to retraction in the cylinder head .
[0046] According to the embodim...
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The invention relates to an internal combustion engine having an injection device arranged in a cylinder bore and to a method for operating an internal combustion engine of said type. An example relates to a fuel injection device positioned in a cylinder liner. In one example, the cylinder includes a combustion chamber jointly formed by a crown of the piston, by a cylinder bore laterally delimiting the combustion chamber, and by a cylinder head. The cylinder includes an injection device positioned in the cylinder bore for direct introduction of fuel into the combustion chamber, the injection device having at least one opening configured to be activated to introduce fuel into the combustion chamber during the injection event , the injection device terminates flush with the cylinder bore at the side of the combustion chamber.
Description
[0001] Related applications [0002] This application claims priority from German Patent Application No. 102016212084.0 filed on July 4, 2016. The entire contents of the above application are incorporated herein by reference in their entirety for all purposes. technical field [0003] The present disclosure relates to a direct injection internal combustion engine. Background technique [0004] The internal combustion engine has a cylinder block and at least one cylinder head, which are connected to each other to form a cylinder and its combustion chamber. The cylinder block is typically used as the upper crankcase half for the mounting of the crankshaft and for housing the pistons and cylinder sleeves for each cylinder. The piston can also be directly mounted and guided in the bore of the cylinder block without the need for a cylinder sleeve as an intermediate element. In the context of this disclosure, both the cylinder sleeve and the orifice come under the expression "c...
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IPC IPC(8): F02B15/00F02B17/00
CPCF02M45/08F02M61/14F02M61/1806
Inventor A·布罗伊尔T·洛伦茨M·科霍斯罗维H·H·鲁兰德
Owner FORD GLOBAL TECH LLC