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63 条记录 (耗时 0.024 秒)

    Piston bowl geometries for internal combustion engines
    1.
    发明授权
    Piston bowl geometries for internal combustion engines 有权

    公开(公告)号：US11293374B2

    公开(公告)日：2022-04-05

    申请号：US16944897

    申请日：2020-07-31

    申请人： FEV GmbH

    发明人： Satyum Joshi ,  Erik Koehler ,  Mufaddel Z. Dahodwala ,  Michael Franke ,  Nitisha Ahuja

    IPC分类号： F02F3/28 ,  F02B23/06

    摘要： A piston for an internal combustion engine is provided. The piston includes a piston bowl defined by a floor surface and a rim wall extending from an outer periphery of the floor surface in a system vertical direction to circumferential surround the floor surface. The piston bowl includes a center portion that extends above the floor surface. A plurality of protrusions extend radially from the center portion and from the floor surface and are spaced apart such that a spray guide is formed between each of the spaced apart plurality of protrusions. Each of the plurality of protrusions and spray guides are tapered so to terminate prior to the rim wall such that a continuous radius portion is formed from a portion of the rim wall and a portion of the floor surface beyond a respective terminating portion of each of the plurality of protrusions and spray guides.

    Model-based cylinder charge detection for an internal combustion engine
    2.
    发明授权
    Model-based cylinder charge detection for an internal combustion engine 有权

    公开(公告)号：US10533510B2

    公开(公告)日：2020-01-14

    申请号：US15111345

    申请日：2015-01-19

    申请人： FEV GMBH ,  HYUNDAI KEFICO CORPORATION ,  HYUNDAI AUTRON CO., LTD.

    发明人： Andreas Gotter ,  Menno Merts ,  Nuri Karaaslan

    IPC分类号： F02D41/14 ,  F02D41/18 ,  F02D13/02 ,  F02D41/00

    摘要： A method for a model-based determination of a cylinder charge of a combustion chamber of an internal combustion engine as well as an internal combustion engine in a computer program product. The method utilizes a neuronal network having at least three input values. A pressure quotient is used as one of the input values. The pressure quotient is determined as the ratio of the pressure of the air set by the engine over the operating pressure of the engine. The pressure of the air set by the internal combustion engine may be determined by utilizing a measured value, a computed value, and/or a value determined from a characteristic map. It is also possible to include a combination of these in the pressure quotient.

    Internal combustion engine with settable variable compression ratio and with a switching module
    3.
    发明授权
    Internal combustion engine with settable variable compression ratio and with a switching module 有权

    公开(公告)号：US10012143B2

    公开(公告)日：2018-07-03

    申请号：US15051769

    申请日：2016-02-24

    申请人： FEV GMBH

    发明人： Uwe Schaffrath ,  Andre Prinz

    IPC分类号： F02D15/02 ,  F02B75/04 ,  F16K11/07 ,  F16K27/04 ,  F16C7/06 ,  F16C23/10

    CPC分类号： F02B75/045 ,  F02D15/02 ,  F16C7/06 ,  F16C23/10 ,  F16C2360/22 ,  F16K11/07 ,  F16K27/041

    摘要： The invention relates to an internal combustion engine (1) having a settable variable compression ratio and having a connecting rod (3), which connecting rod has an adjustment mechanism (4) for the adjustment of the settable variable compression ratio, a first hydraulic line (5), a second hydraulic line (6), a hydraulic outflow duct (47) and a switching module (21) for the switching of the adjustment mechanism (4), wherein the switching module (21) is arranged on the connecting rod (3) and a first position of the switching module (21) corresponds to a first compression ratio and a second position of the switching module (21) corresponds to a second compression ratio that differs from the first compression ratio, wherein the switching module (21) has a switching element (22) and a sleeve (23) surrounding the switching element (22), wherein the switching element (22) and the sleeve (23) are movable relative to one another, and the switching element (22) has a recess (36) and an edge region (37) bordering the recess (36), wherein, in the first position of the switching module (21), the recess (36) and the sleeve (23) connect the first hydraulic line (5) in fluid-conducting fashion to the hydraulic outflow duct (47), and the edge region (37) and the sleeve (23) shut off a fluidic connection between the second hydraulic line (6) and the hydraulic outflow duct (47), and in the second position of the switching module (21), the recess (36) and the sleeve (23) connect the second hydraulic line (6) in fluid-conducting fashion to the hydraulic outflow duct (47), and the edge region (37) and the sleeve (23) shut off a fluidic connection between the first hydraulic line (5) and the hydraulic outflow duct (47).

    VARIABLE LENGTH CONNECTING ROD OF AN INTERNAL COMBUSTION ENGINE
    9.
    发明申请
    VARIABLE LENGTH CONNECTING ROD OF AN INTERNAL COMBUSTION ENGINE 有权
    内燃机可变长度连接杆

    公开(公告)号：US20160305471A1

    公开(公告)日：2016-10-20

    申请号：US15102126

    申请日：2014-12-08

    申请人： FEV GMBH

    发明人： Karsten Wittek

    IPC分类号： F16C7/06 ,  F16H19/04 ,  F15B15/14 ,  F02B75/04

    CPC分类号： F16C7/06 ,  F02B75/045 ,  F15B15/14 ,  F16C23/10 ,  F16C2360/22 ,  F16H19/04

    摘要： A connecting rod for an internal combustion engine having an adjustable length between a first connecting rod eye and a second connecting rod eye. An eccentric member having a bearing bore which is positioned eccentrically to an outer diameter is rotated to adjust the length. The eccentric member is rotated by a rack and pinion drive and a double acting hydraulic cylinder.

    摘要翻译： 一种用于内燃机的连杆，在第一连杆眼和第二连杆眼之间具有可调长度。 具有偏心于外径的轴承孔的偏心构件被旋转以调节长度。 偏心构件通过齿条和小齿轮驱动和双作用液压缸旋转。

    METHOD FOR ADJUSTING AT LEAST ONE CONTROL PARAMETER OF AN INTERNAL COMBUSTION ENGINE
    10.
    发明申请
    METHOD FOR ADJUSTING AT LEAST ONE CONTROL PARAMETER OF AN INTERNAL COMBUSTION ENGINE 审中-公开
    用于调节内燃机的至少一个控制参数的方法

    公开(公告)号：US20160290251A1

    公开(公告)日：2016-10-06

    申请号：US15080268

    申请日：2016-03-24

    申请人： FEV GMBH

    发明人： Martin Nijs ,  Norman Liberda ,  Thivaharan Ablin Rajasingham ,  Dirk Abel

    IPC分类号： F02D28/00 ,  G05B13/04

    CPC分类号： G05B13/041 ,  F02B37/004 ,  F02B37/013 ,  F02B37/18 ,  F02D23/02 ,  F02D41/0007 ,  F02D41/1401 ,  F02D41/1406 ,  F02D2041/1418 ,  F02D2041/1433 ,  Y02T10/144

    摘要： The invention relates to a method for adjusting at least one control parameter (KP) of an internal combustion engine (200) by means of at least two setting parameters (SP), having the following steps:determining an optimum steady-state combination (110) of the at least two setting parameters (SP) in order to obtain the setpoint value (104) under steady-state boundary conditions,producing a functional dynamic relationship (120) between the control error (100), a setting expenditure (130) for the at least two setting parameters (SP) and the determined steady-state combination (110),optimizing the dynamic relationship (120) in order to determine an optimum dynamic combination (140) of the at least two setting parameters (SP), andusing the optimum dynamic combination (140) for the following adjustment step during the adjustment of the at least one control parameter (KP).

    摘要翻译： 在所述至少一个控制参数（KP）的调整期间，使用所述最佳动态组合（140）进行下列调整步骤。