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1.
公开(公告)号:US11047299B2
公开(公告)日:2021-06-29
申请号:US16604140
申请日:2018-04-10
Applicant: IWIS MOTORSYSTEME GMBH & CO. KG , AVL LIST GMBH
Inventor: Robert Berger , Andreas Krobath , Helfried Sorger , Malte Heller
Abstract: A device for adjusting the effective length of a connecting rod for an internal combustion engine, includes at least one connecting rod which has a variable length and which can be locked in at least two length settings, at least one first oil pump for supplying oil to the at least one connecting rod with a variable length, and a control unit which provides for a switchover between the length settings of the connecting rod in the event of a change in the oil supply pressure for the connecting rod. The aim of the invention is to shorten the switching times during a switchover between the length settings of the connecting rod. A method for providing such a device for adjusting the effective length of a connecting rod is also provided.
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公开(公告)号:US10781747B2
公开(公告)日:2020-09-22
申请号:US16306396
申请日:2017-05-31
Applicant: AVL LIST GMBH
Inventor: Andreas Krobath , Devaraj Doraiswamy , Bernhard Hausmann , Thomas Weberbauer , Jürgen Pichler
Abstract: A reciprocating-piston machine, in particular an internal combustion engine with a variable compression ratio, having a length adjustment device arranged in a connecting rod and can be activated by way of a switching unit arranged in the connecting rod, wherein an actuating mechanism is operatively connected to the switching unit in the region of a connecting rod bearing in order to introduce a switching pulse into the connecting rod. The actuating mechanism has a transmission means arranged in the region of the connecting rod bearing, and the switching unit has at least one switching valve which is arranged in the connecting rod body of the connecting rod and the valve body, which can be displaced substantially in the direction of the rotational axis of the connecting rod bearing, and can be deflected out of a dosed position into an open position by way of the transmission means.
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公开(公告)号:US09222361B2
公开(公告)日:2015-12-29
申请号:US13902706
申请日:2013-05-24
Applicant: AVL List GmbH
Inventor: Michael Steinbauer , Andreas Krobath
CPC classification number: F01C20/06 , F01C1/22 , F04C2240/807 , F04C2240/81
Abstract: A rotary piston machine is disclosed. In one aspect, the machine includes a shaft and a shaft encoder including a first structure, based on which the rotational speed and/or the rotational position of the shaft can be determined by scanning the first structure with a sensor. The shaft encoder has a rotationally asymmetrical mass distribution in order to produce an imbalance.
Abstract translation: 公开了一种旋转活塞机。 一方面,机器包括轴和轴编码器,其包括第一结构,基于该第一结构,通过用传感器扫描第一结构可以确定轴的旋转速度和/或旋转位置。 轴编码器具有旋转不对称的质量分布,以产生不平衡。
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4.
公开(公告)号:US10738690B2
公开(公告)日:2020-08-11
申请号:US16315236
申请日:2017-07-06
Applicant: AVL LIST GMBH , IWIS MOTORSYSTEME GMBH & CO. KG
Inventor: Juergen Pichler , Andreas Krobath , Johann Felgitscher , Thomas Weberbauer , Siegfried Loesch
Abstract: Adjustable-length connecting rod (100, 200) for a reciprocating piston engine, in particular for a reciprocating piston internal combustion engine, having a hydraulic cylinder for adjusting an effective connecting rod length (L) of the connecting rod (100, 200), which hydraulic cylinder has at least one piston and a first hydraulic operating chamber (21) and a second hydraulic operating chamber (22), a hydraulically actuable control device (8) which can be switched over at least between two switching states with an actuating piston (23) for controlling the adjustment of the connecting rod (100, 200), and a mechanically actuable actuating device (9) for switching the control device (8), which actuating device (9) is operatively connected via at least one hydraulic actuating line (11, 12) to the actuating piston (23) of the control device (8) for actuating it hydraulically.
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公开(公告)号:US20130336829A1
公开(公告)日:2013-12-19
申请号:US13902700
申请日:2013-05-24
Applicant: AVL List GmbH
Inventor: Michael Steinbauer , Andreas Krobath , Karl Knaus , Heinrich Furhapter
IPC: F04C2/00
Abstract: A rotary piston machine is disclosed. In one aspect, the machine includes a piston chamber that is defined in a housing by a first sidewall, a second sidewall and a peripheral wall interconnecting these sidewalls and a rotary piston that is rotatably arranged in the piston chamber and has a first face and a second face. The first face of the rotary piston faces an interior of the first sidewall of the piston chamber and the second face of the rotary piston faces an interior of the second sidewall of the piston chamber at least one ventilation bore is provided in the first and/or the second sidewall of the piston chamber and connected to at least one ventilation channel, wherein the at least one ventilation bore is arranged at a location that radially lies within at least one first lateral seal.
Abstract translation: 公开了一种旋转活塞机。 在一个方面,该机器包括:活塞室,其通过第一侧壁,第二侧壁和互连这些侧壁的周壁以及可旋转地布置在活塞室中的旋转活塞限定在壳体中,并且具有第一面和 第二面。 旋转活塞的第一面面对活塞室的第一侧壁的内部,旋转活塞的第二面朝向活塞室的第二侧壁的内部,至少一个通气孔设置在第一和/或 活塞室的第二侧壁并且连接到至少一个通风通道,其中所述至少一个通气孔布置在径向位于至少一个第一侧向密封件内的位置处。
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公开(公告)号:US20190264607A1
公开(公告)日:2019-08-29
申请号:US16306396
申请日:2017-05-31
Applicant: AVL LIST GMBH
Inventor: Andreas Krobath , Devaraj Doraiswamy , Bernhard Hausmann , Thomas Weberbauer , Jürgen Pichler
Abstract: A reciprocating-piston machine, in particular an internal combustion engine with a variable compression ratio, having a length adjustment device arranged in a connecting rod and can be activated by way of a switching unit arranged in the connecting rod, wherein an actuating mechanism is operatively connected to the switching unit in the region of a connecting rod bearing in order to introduce a switching pulse into the connecting rod. The actuating mechanism has a transmission means arranged in the region of the connecting rod bearing, and the switching unit has at least one switching valve which is arranged in the connecting rod body of the connecting rod and the valve body, which can be displaced substantially in the direction of the rotational axis of the connecting rod bearing, and can be deflected out of a dosed position into an open position by way of the transmission means.
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公开(公告)号:US20190120135A1
公开(公告)日:2019-04-25
申请号:US16306320
申请日:2017-05-31
Applicant: AVL LIST GMBH
Inventor: Devaraj Doraiswamy , Andreas Krobath , Bernhard Hausmann , Jürgen Gelter , Andreas Zurk
IPC: F02B75/04
Abstract: The invention relates to a reciprocating-piston engine, in particular an internal combustion engine having a variable compression ratio with a length adjusting device which is arranged in a connecting rod and which can be activated by a switching unit arranged in the connecting rod, wherein an actuating mechanism is operatively connected to the switching unit in the region of a connecting rod bearing in order to introduce a switching pulse into the connecting rod. The actuating mechanism has a deflection element with at least one first force-application region and at least one second force-application region, and the first force-application region and the second force-application region can be selectively contacted with at least one actuating device.
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公开(公告)号:US20130259724A1
公开(公告)日:2013-10-03
申请号:US13902706
申请日:2013-05-24
Applicant: Avl List GmbH
Inventor: Michael Steinbauer , Andreas Krobath
IPC: F01C20/06
CPC classification number: F01C20/06 , F01C1/22 , F04C2240/807 , F04C2240/81
Abstract: A rotary piston machine is disclosed. In one aspect, the machine includes a shaft and a shaft encoder including a first structure, based on which the rotational speed and/or the rotational position of the shaft can be determined by scanning the first structure with a sensor. The shaft encoder has a rotationally asymmetrical mass distribution in order to produce an imbalance.
Abstract translation: 公开了一种旋转活塞机。 一方面,机器包括轴和轴编码器,其包括第一结构,基于该第一结构,通过用传感器扫描第一结构可以确定轴的旋转速度和/或旋转位置。 轴编码器具有旋转不对称的质量分布,以产生不平衡。
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公开(公告)号:US10858991B2
公开(公告)日:2020-12-08
申请号:US16306320
申请日:2017-05-31
Applicant: AVL LIST GMBH
Inventor: Devaraj Doraiswamy , Andreas Krobath , Bernhard Hausmann , Jürgen Gelter , Andreas Zurk
Abstract: The invention relates to a reciprocating-piston engine, in particular an internal combustion engine having a variable compression ratio with a length adjusting device which is arranged in a connecting rod and which can be activated by a switching unit arranged in the connecting rod, wherein an actuating mechanism is operatively connected to the switching unit in the region of a connecting rod bearing in order to introduce a switching pulse into the connecting rod. The actuating mechanism has a deflection element with at least one first force-application region and at least one second force-application region, and the first force-application region and the second force-application region can be selectively contacted with at least one actuating device.
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公开(公告)号:US09534594B2
公开(公告)日:2017-01-03
申请号:US13902700
申请日:2013-05-24
Applicant: AVL List GmbH
Inventor: Michael Steinbauer , Andreas Krobath , Karl Knaus , Heinrich Fuerhapter
Abstract: A rotary piston machine is disclosed. In one aspect, the machine includes a piston chamber that is defined in a housing by a first sidewall, a second sidewall and a peripheral wall interconnecting these sidewalls and a rotary piston that is rotatably arranged in the piston chamber and has a first face and a second face. The first face of the rotary piston faces an interior of the first sidewall of the piston chamber and the second face of the rotary piston faces an interior of the second sidewall of the piston chamber. at least one ventilation bore is provided in the first and/or the second sidewall of the piston chamber and connected to at least one ventilation channel, wherein the at least one ventilation bore is arranged at a location that radially lies within at least one first lateral seal.
Abstract translation: 公开了一种旋转活塞机。 在一个方面,该机器包括:活塞室,其通过第一侧壁,第二侧壁和互连这些侧壁的周壁以及可旋转地布置在活塞室中的旋转活塞限定在壳体中,并且具有第一面和 第二面。 旋转活塞的第一面面对活塞室的第一侧壁的内部,旋转活塞的第二面朝向活塞室的第二侧壁的内部。 至少一个通气孔设置在活塞室的第一和/或第二侧壁中并连接到至少一个通气通道,其中至少一个通气孔设置在径向位于至少一个第一侧面 密封。
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