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1. 发明公开

EP3976951A1 WASTEGATE WITH REDUCED LEAKAGE CURRENT 审中-实审
公开(公告)号：EP3976951A1
公开(公告)日：2022-04-06
申请号：EP20731389.1
申请日：2020-05-28
申请人： Caterpillar Energy Solutions GmbH
发明人： SCHAEFER, Friedrich
IPC分类号： F02D9/10 , F02B37/18 , F16K27/02 , F16K1/226

2. 发明公开

EP4326982A1 CONDITIONING OF A PRE-CHAMBER GAS FLOW FOR A COMBUSTION ENGINE 审中-实审
公开(公告)号：EP4326982A1
公开(公告)日：2024-02-28
申请号：EP22720300.7
申请日：2022-04-12
申请人： Caterpillar Energy Solutions GmbH
发明人： DREHOBL, Enrico , SCHAEFER, Friedrich
IPC分类号： F02M21/02 , F02B19/10

3. 发明公开

EP3390801A1 SPARK PLUG ASSEMBLY WITH A FUEL SUPPLY LINE 有权
公开(公告)号：EP3390801A1
公开(公告)日：2018-10-24
申请号：EP16806128.1
申请日：2016-12-06
申请人： Caterpillar Energy Solutions GmbH
发明人： SCHAEFER, Friedrich , STELLWAGEN, Karl
IPC分类号： F02M21/02 , F02F1/24 , F02P13/00 , F02B19/18
CPC分类号： F02M21/0275 , F02B19/108 , F02B19/12 , F02B19/18 , F02B43/04 , F02F1/24 , F02F1/242 , F02P13/00 , F02P15/006 , H01T13/00 , H01T13/40 , H01T13/54 , Y02T10/125 , Y02T10/32
摘要： A spark plug assembly 22 for use in an internal combustion engine has a fuel supply line 36 and a fuel collecting area 38, which is positioned at an outer side 44 of the spark plug assembly. The fuel collecting area is defined on at least one side by a thread 54 and may be defined by a protrusion for a sealing seat 62 on an opposite side to the thread. The fuel collecting area may extend circumferentially around a central axis of the spark plug assembly and may further include a recess 88, which is fluidly connected to the fuel supply line. The spark plug assembly may include a pre-combustion chamber which is fluidly connected to the fuel supply line. The spark plug assembly is fitted to a cylinder head 18 which has a fuel supply line 68 and a fuel collecting area, which is defined on at least one side by a thread 66. The fuel collecting areas of the spark plug assembly and the cylinder head may define a volume 76, which is in fluid communication with the fuel supply lines of the spark plug assembly and the cylinder head.

4. 发明公开

EP4367760A1 SPARK PLUG 审中-实审
公开(公告)号：EP4367760A1
公开(公告)日：2024-05-15
申请号：EP22744109.4
申请日：2022-06-30
申请人： Caterpillar Energy Solutions GmbH
发明人： SCHAEFER, Friedrich
IPC分类号： H01T13/16 , H01T13/36
CPC分类号： H01T13/16 , H01T13/36

5. 发明公开

EP4326975A1 PREVENTION OF BACKFIRING OF A PRE-CHAMBER GAS VALVE OF A COMBUSTION ENGINE 审中-实审
公开(公告)号：EP4326975A1
公开(公告)日：2024-02-28
申请号：EP22720301.5
申请日：2022-04-12
申请人： Caterpillar Energy Solutions GmbH
发明人： DREHOBL, Enrico , SCHAEFER, Friedrich
IPC分类号： F02B19/10 , F02M21/02

6. 发明授权

EP3391484B1 SPARK PLUG 有权
公开(公告)号：EP3391484B1
公开(公告)日：2020-08-05
申请号：EP16806127.3
申请日：2016-12-06
申请人： Caterpillar Energy Solutions GmbH
发明人： SCHAEFER, Friedrich
IPC分类号： H01T13/08 , H01T13/40 , H01T13/50 , H01T13/54

7. 发明公开

EP3391484A1 SPARK PLUG 有权
公开(公告)号：EP3391484A1
公开(公告)日：2018-10-24
申请号：EP16806127.3
申请日：2016-12-06
申请人： Caterpillar Energy Solutions GmbH
发明人： SCHAEFER, Friedrich
IPC分类号： H01T13/08 , H01T13/40 , H01T13/50 , H01T13/54
摘要： A spark plug 14 has a protrusion, forming a sealing seat 33 between the spark plug and a cylinder head 4, and a sealing lip 31 that is arranged between the protrusion and an ignition end 26 of the spark plug. The spark plug includes a pre-combustion chamber 37 at the ignition end, wherein transfer bores 38 at a first end 39 of the pre-combustion chamber allow a fuel-air mixture to be pushed from a main combustion chamber 6 into the pre-combustion chamber and to expel ignited fuel and/or air in the reverse direction. The protrusion is rotationally symmetric and arranged around a main axis 41 of the spark plug. The protrusion has a lower surface 47 which defines an acute angle with the main axis. A rotationally symmetric recess 32 is arranged between the protrusion and the sealing lip. When the spark plug is fitted to the cylinder head: a thread of the spark plug meshes with a thread in a receptacle 13 of the head; the protrusion of the spark plug abuts an inclined surface 23 of the head; and the sealing lip of the plug abuts a sealing lip 17 of the head.

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