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    • 1. 发明公开
    • INTERNAL COMBUSTION ENGINE WITH VARIABLE COMPRESSION RATIO DEVICE
    • EP4166769A1
    • 2023-04-19
    • EP21203071.2
    • 2021-10-18
    • Winterthur Gas & Diesel Ltd.
    • Alder, RolandHuber, CyrilStürm, Thomas
    • F02B75/04F02B75/32F02D15/02F16J1/14F01P3/12F01M1/06F01P3/00
    • The present invention is related to an internal combustion engine 100, a method for running an internal combustion engine 100 and a crosshead pin 11. The internal combustion engine (100) with at least one cylinder (1) has at least one piston (6) which is movably arranged within the cylinder. The engine has a rotatably arranged crankshaft (2), with the piston (6) being connected to a crosshead (8) via a piston rod (7), and with a crosshead pin (11) connected to the piston rod (7), and with the crosshead (8) being connected to the crankshaft (2) via a connecting rod (9) to drive the crankshaft (2). The engine comprises a variable compression ratio device (10) for changing a compression ratio of an engine, which is provided with a fluid chamber (12) arranged in the inside of the crosshead pin (11), in which the piston rod is moveable relative to a bottom (13) of the fluid chamber (12) by a pressure-increased working fluid being supplied into the fluid chamber (12). The piston rod (7) comprises cooling channels (14a, 14b). The crosshead pin (11) comprises at least one first flow path (15) for guiding a cooling fluid that is to be supplied to at least one of the cooling channels (14a) and at least one second flow path (16) for guiding a cooling fluid that is to be discharged from at least one of the cooling channels (14b). The first flow path (15) is arranged in a first distance (d1) to a bottom plane (17) defined by the bottom (13) of the fluid chamber (12) and the second flow path (16) is arranged in second distance (d2) to the bottom plane (17). The first distance (d1) is smaller than the second distance (d2). The first flow path (15) comprises a plurality of first channels (18), preferably uniformly, arranged in a first cross-section (19) of the crosshead pin (11) parallel to the bottom plane (17) .
    • 10. 发明授权
    • Kolbenmaschine
    • 活塞发动机
    • EP0250790B1
    • 1989-12-27
    • EP87106738.5
    • 1987-05-08
    • G. Düsterloh GmbH
    • Schneeweiss, Dieter
    • F16J1/14
    • F16J1/14Y10T403/32655Y10T403/32672
    • 1. A piston machine, more particularly a hydraulically energized piston machine, having at least one cylinder (3) in which a piston (5; 5a; 5b) is guided for axial movement, the piston being connected by way of a connecting rod (7; 7a; 7b) to a crankshaft (4) or the like, the connecting rod (7; 7a; 7b) and the piston (5; 5a; 5b) being pivotally interconnected by way of a spherical bearing surface (9, 10, 11; 10a, 11; 9, 10b), characterised in that the connecting rod (7; 7a; 7b) has a spherical zone (12) which is disposed concentrically of the spherical bearing surface (9, 10, 11; 10a, 11; 9, 10b), engages sealingly in a recess (15) in the piston (5; 5a; 5b) and bounds therein a cavity (16) in fluid-conducting relationship with the cylinder chamber (6).
    • 1.一种具有至少一个气缸(3)的活塞机械,特别是液压活塞机械,其中活塞(5; 5a; 5b)被引导以用于轴向运动,所述活塞通过连接杆( 7; 7a; 7b)连接到曲轴(4)等,连杆(7; 7a; 7b)和活塞(5; 5a; 5b)通过球面轴承表面(9,10 ,11; 10a,11; 9,10b),其特征在于,所述连杆(7; 7a; 7b)具有球形区域(12),所述球形区域与所述球面轴承表面(9,10,11; 10a, 11; 9,10b)密封地接合在活塞(5; 5a; 5b)中的凹部(15)中并且在其中限定与气缸室(6)处于流体传导关系的空腔(16)。