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公开(公告)号：US20240133356A1
公开(公告)日：2024-04-25
申请号：US18278330
申请日：2022-03-11
发明人： Robert GRAUMÜLLER
CPC分类号： F02M63/0001 , F02M59/102 , F02M59/36
摘要： A lubricated high pressure fuel pump assembly is provided, comprising a fuel pump, a sealed enclosure and a pump lubrication circuit. The fuel pump includes a pump drive shaft via which the fuel pump is configured to be mechanically driven. The sealed enclosure is configured to surround a first portion of the pump drive shaft, wherein the first portion is exterior to the fuel pump. The pump lubrication circuit comprises a lubricant reservoir and a lubricant pump configured to pump lubricant from the lubricant reservoir to the pump drive shaft. The sealed enclosure is configured to prevent fluid leakage from the fuel pump via the first portion of the pump drive shaft and the lubricant reservoir is configured to collect the lubricant from the pump drive shaft, such that the lubricant is retained within the lubricated high pressure fuel pump assembly.
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公开(公告)号：US11719173B2
公开(公告)日：2023-08-08
申请号：US17778761
申请日：2020-11-12
发明人： Robert Graumueller
CPC分类号： F02D19/022 , F02D41/0027 , F02M21/0245 , F02M21/0248 , F02D41/401
摘要： The present invention relates to a method for operating an internal combustion engine provided as a medium-speed gas engine or dual fuel engine in a gas fuel mode. The method comprises the step of directly injecting a gas fuel into a combustion chamber of the engine at a maximum injection pressure that is lower than a compression-end pressure of the engine.
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公开(公告)号：US20230067611A1
公开(公告)日：2023-03-02
申请号：US17789273
申请日：2020-12-16
发明人： Volker ABRAHAM
摘要： The present invention refers to a piston for an internal combustion engine, particularly a V-engine. The piston comprises an oil drainage groove provided in the outer circumferential surface of the piston between a ring belt and a piston skirt of the piston, the piston skirt being provided with two recessed pin boss portions on opposed sides of the piston, wherein the piston skirt is further provided with at least one oil drainage duct arranged between the two recessed pin boss portions at an outer surface of the piston skirt and configured to fluid-communicatively connect the oil drainage groove with the recessed pin boss portions.
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公开(公告)号：US11542858B2
公开(公告)日：2023-01-03
申请号：US17270923
申请日：2019-08-30
发明人： Michael Sturm , Markus Krueger , Torben Gravert , Jan Borchardt , Udo Wachtel , Helge Seidel , Volker Abraham , Ole Ehlert
IPC分类号： F02B29/04 , F02B37/013 , F28F9/02 , F28D7/00 , F28D21/00
摘要： The present invention relates to a charge air cooling unit comprising a first charge air cooler having a first end face provided with a first cooling fluid inlet and a first cooling fluid outlet and a second charge air cooler having a second end face provided with a second cooling fluid inlet and a second cooling fluid outlet. Specifically, the second charge air cooler is arranged adjacent to the first charge air cooler such that the first end face and the second end face are oriented in the same direction. Further, the charge air cooling unit comprises a manifold unit connected to the first end face and the second end face for guiding a cooling fluid through the first charge air cooler and the second charge air cooler.
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公开(公告)号：US11384699B2
公开(公告)日：2022-07-12
申请号：US16468909
申请日：2017-12-11
摘要： A method of operating a gaseous fuel internal combustion engine comprises performing at least one measurement relating to the combustion of a mixture of gaseous fuel and air in a combustion chamber of an associated cylinder in a combustion cycle. At least one combustion parameter, for example, a start of combustion, is determined based on the at least one measurement. When the combustion parameter differs from a desired combustion parameter, an ignition device associated with the cylinder is controlled based on the comparison in order to control the combustion in the current combustion cycle.
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公开(公告)号：US20210348547A1
公开(公告)日：2021-11-11
申请号：US17273146
申请日：2019-08-30
发明人： Michael Sturm , Markus KRUEGER , Torben GRAVERT , Jan BORCHARDT , Udo WACHTEL , Helge SEIDEL , Volker ABRAHAM , Ole EHLERT
IPC分类号： F02B29/04 , F02B37/013
摘要： A two-stage turbocharged internal combustion engine comprises a low-pressure stage turbocharger mounted at a first end side of an engine block and a high-pressure stage turbocharger mounted at the same first end side of the engine block. The respective turbochargers are mounted via a mounting structure, Which also accommodates the charge air coolers associated with the turbochargers. In order to obtain a compact arrangement and reduce a length of pipe connections between the different components, the different charge air coolers are mounted to mounting structure such that they overlap in a plan view of the internal combustion engine. Further, flow directions of charge air in the different charge air coolers are opposite to each other.
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公开(公告)号：US10385846B2
公开(公告)日：2019-08-20
申请号：US15726879
申请日：2017-10-06
发明人： Jan M. Kreye
摘要： A stopping assembly of a piston pump is disclosed. The stopping assembly includes a base portion having an inner surface for movably receiving a push rod assembly of the piston pump and an outer surface opposite to the inner surface engaged with a housing of the piston pump. The stopping assembly also includes a plurality of protruded structures adjacently disposed on the base portion forming a plurality of grooves extending from the inner surface towards the outer surface to allow fluid to flow towards the outer surface.
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公开(公告)号：US20190195149A1
公开(公告)日：2019-06-27
申请号：US16229376
申请日：2018-12-21
发明人： Eike Sixel , Kay Schwerdtfeger , Daniel Wester , Andre Schmidt
摘要： A method for starting a gaseous fuel internal combustion engine is disclosed. According to the disclosed method, the engine is rotated using a start device until a first speed threshold is reached. After reaching the first speed threshold, pilot fuel is supplied to a plurality of cylinders of the engine to combust the same. After performing an ignition health check, gaseous fuel is supplied to all or a relatively large number of cylinders to start accelerating the engine up to a second speed threshold.
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公开(公告)号：US20170284320A1
公开(公告)日：2017-10-05
申请号：US15509697
申请日：2015-08-10
发明人： Hauke HOLST , Eike Joachim SIXEL
CPC分类号： F02D41/0027 , F02B19/1019 , F02B19/108 , F02B19/1085 , F02B19/12 , F02D19/02 , F02D37/02 , F02D2200/0602 , F02P5/1502 , Y02T10/125 , Y02T10/46
摘要： A method for operating a spark ignited gaseous fuel internal combustion engine is disclosed. The engine may have at least one main combustion chamber and at least one ignition device configured to initiate an ignition event within an ignition region. The method may include supplying pressurized fuel to the ignition region at times between about 30° to about 0° crank angle before the ignition event is initiated by the ignition device for enriching the ignition region with fuel. The method may also include initiating an ignition event in the ignition region for combusting an enriched air/fuel mixture within the ignition region.
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公开(公告)号：US09695774B2
公开(公告)日：2017-07-04
申请号：US14424355
申请日：2013-08-27
发明人： Armin Kasic
CPC分类号： F02F1/24 , B23P11/025 , F02B77/085 , F02D41/1439 , Y10T29/4927
摘要： A cylinder head of an internal combustion engine may include an opening and a sensor sleeve. The opening may extend through the cylinder head. The sensor sleeve may be shrink fitted in the opening. The sensor sleeve may be configured to receive a sensor. The sensor may be mounted within the sensor sleeve through a mounting mechanism.
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