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公开(公告)号：US20220170428A1
公开(公告)日：2022-06-02
申请号：US17439788
申请日：2020-03-20
Applicant: AVL LIST GmbH
Inventor： Andreas Zurk , Martin Klampfer , Robert Grundner
Abstract: Various embodiments of the present disclosure are directed to an internal combustion engine cylinder head. In one example embodiment, the cylinder head includes a combustion chamber, a fire deck, an intermediate deck remote from a combustion chamber, a central receptacle that receives an injection or ignition device, at least one valve bridge, at least two adjacent gas exchange valves, a top-down cooling system, at least one first transfer opening, and at least one second transfer opening. The top-down cooling system including a first sub-cooling chamber and a second sub-cooling chamber. The at least one first transfer opening positioned between the first sub-cooling chamber and the second sub-cooling chamber. The at least one second transfer opening positioned between the first sub-cooling chamber and the second sub-cooling chamber is arranged in the region in the region of the at least one valve bridge between the at least two adjacent gas exchange valves.
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公开(公告)号：US20220065191A1
公开(公告)日：2022-03-03
申请号：US17275925
申请日：2019-09-09
Applicant: AVL LIST GMBH
Inventor： Martin Klampfer , Andreas Zurk
IPC: F02F1/40
Abstract: Aspects of the present disclosure are directed to, for example, a cylinder head for an internal combustion engine. In one embodiment of the present disclosure, the cylinder head includes at least one upper partial cooling chamber, a lower partial cooling chamber, an intermediate deck and at least one flow connection. The upper and lower cooling chamber are separated from one another by the intermediate deck. The intermediate deck having an element of single-wall design which extends into a combustion chamber and penetrates the intermediate deck. The at least one flow connection is positioned in the region of the element between the at least one upper and lower partial cooling chambers. The at least one flow connection formed by at least one recess on the element which tapers towards the one lower partial cooling chamber.
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公开(公告)号：US20190242278A1
公开(公告)日：2019-08-08
申请号：US16318343
申请日：2017-07-20
Applicant: AVL LIST GMBH
Inventor： Andreas Zurk , Martin Klampfer , Gernot Hirschl
CPC classification number: F01L3/20 , F01L1/08 , F01L1/181 , F01L1/267 , F01L1/344 , F01L3/22 , F01L13/0047 , F01L13/06 , F01L2003/11 , F01L2003/25 , F02D13/0246 , F02D13/04 , F16K1/54
Abstract: Aspects of the present disclosure are directed to an internal combustion engine having a valve actuation device and at least one first exhaust valve and one second exhaust valve per cylinder. The first and second exhaust valves may be actuated together in at least one operating area of the internal combustion engine, via an exhaust valve bridge and a first valve lifter, by a first cam lobe of a first exhaust cam arranged on a camshaft. The camshaft having a second exhaust cam with at least one additional cam lobe and at least one second cam lobe A transmission device being arranged in the functional path between the second exhaust cam and the second exhaust valve, the transmission device allowing an idle stroke to be activated or deactivated. The first exhaust cam and the second exhaust cam are configured and arranged to be rotatable relative to one another.
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公开(公告)号：US12188381B2
公开(公告)日：2025-01-07
申请号：US18042691
申请日：2021-08-24
Applicant: AVL LIST GMBH
Inventor： Martin Klampfer , Andreas Zurk , Thomas Salmutter
Abstract: A valve-actuating device for a valve of a reciprocating piston engine having a coupling apparatus with a locking element able to be brought into a first and second position by a mechanical switching device, the switching device comprising a guide rod and a parallel actuating rod capable of relative movement; a slotted guide element movably mounted on the guide rod for moving the locking element; a triggering element coupled to the slotted guide element; where the slotted guide element and triggering element are clamped between two stops on the actuating rod, each with an associated spring element, where the slotted guide element and the triggering element are displaceable along and/or parallel to the guide rod with the actuating rod; and a blocking element interacting with the triggering element which in a first state, blocks a displacement of the triggering element and the slotted guide element upon the axial displacing of the actuating rod such that the spring elements are preloaded, where in a second state, a displacement of the triggering element and the slotted guide element effects actuation of the coupling apparatus.
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公开(公告)号：US20230175455A1
公开(公告)日：2023-06-08
申请号：US18104664
申请日：2023-02-01
Applicant: AVL LIST GMBH
Inventor： Martin Klampfer , Andreas Zurk
CPC classification number: F02F1/16 , F01L3/08 , F02F1/4285
Abstract: Various embodiments of the present disclosure are directed to liquid-cooled cylinder heads. In one example embodiment, a cylinder head is disclosed including a component which extends into a combustion chamber, an upper cooling jacked, a lower cooling jacket, a plurality of valves arranged around the component, a plurality of cylinder head screws, an oil deck, a fire deck, a plurality of valve guides, and a fixed connection. The fixed connection is arranged from each valve guide to the component, and is a ring having at least one support. The support and the ring extend at least from the oil deck to the fire deck thereby bounding the combustion chamber, and the component is connected to the plurality of cylinder head screws.
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Patent Agency Ranking
公开(公告)号：US11459976B2
公开(公告)日：2022-10-04
申请号：US17275925
申请日：2019-09-09
Applicant: AVL LIST GMBH
Inventor： Martin Klampfer , Andreas Zurk
Abstract: Aspects of the present disclosure are directed to, for example, a cylinder head for an internal combustion engine. In one embodiment of the present disclosure, the cylinder head includes at least one upper partial cooling chamber, a lower partial cooling chamber, an intermediate deck and at least one flow connection. The upper and lower cooling chamber are separated from one another by the intermediate deck. The intermediate deck having an element of single-wall design which extends into a combustion chamber and penetrates the intermediate deck. The at least one flow connection is positioned in the region of the element between the at least one upper and lower partial cooling chambers. The at least one flow connection formed by at least one recess on the element which tapers towards the one lower partial cooling chamber.
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公开(公告)号：US20220120210A1
公开(公告)日：2022-04-21
申请号：US17424876
申请日：2020-01-22
Applicant: AVL List GmbH
Inventor： Andreas Puschnik , Christof Knollmayr , Andreas Zurk , Martin Klampfer
Abstract: Various aspects of the present disclosure are directed to a cylinder head for an internal combustion engine. In one example embodiment, the cylinder head includes at least one spark plug having at least one earth electrode, a precombustion chamber accommodating the at least one spark plug, and a fuel channel which leads into the precombustion chamber. The fuel channel having a flow axis at an outlet that is oriented in the direction of the at least one earth electrode. An axis of rotation of the at least one spark plug has an offset with respect to the flow axis between 0 and 15% of the greatest precombustion chamber diameter.
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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：US10669900B2
公开(公告)日：2020-06-02
申请号：US16318343
申请日：2017-07-20
Applicant: AVL LIST GMBH
Inventor： Andreas Zurk , Martin Klampfer , Gernot Hirschl
IPC: F01L3/20 , F01L13/06 , F01L1/08 , F01L1/18 , F02D13/04 , F01L13/00 , F02D13/02 , F01L1/344 , F01L1/26 , F01L3/22 , F16K1/54 , F01L3/00
Abstract: Aspects of the present disclosure are directed to an internal combustion engine having a valve actuation device and at least one first exhaust valve and one second exhaust valve per cylinder. The first and second exhaust valves may be actuated together in at least one operating area of the internal combustion engine, via an exhaust valve bridge and a first valve lifter, by a first cam lobe of a first exhaust cam arranged on a camshaft. The camshaft having a second exhaust cam with at least one additional cam lobe and at least one second cam lobe A transmission device being arranged in the functional path between the second exhaust cam and the second exhaust valve, the transmission device allowing an idle stroke to be activated or deactivated. The first exhaust cam and the second exhaust cam are configured and arranged to be rotatable relative to one another.
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公开(公告)号：US09670952B2
公开(公告)日：2017-06-06
申请号：US14412310
申请日：2013-07-01
Applicant: AVL LIST GMBH
Inventor： Helmut Melde-Tuczai , Bernhard Hoedl , Andreas Zurk , Wolfgang Schoeffmann
CPC classification number: F16C7/06 , F02B75/045 , F16C2360/22 , Y10T74/2151
Abstract: The invention relates to a length-adjustable con rod (1) for a reciprocating piston engine, particularly an internal combustion engine, having at least a first and a second rod part (2, 4), wherein the two rod parts (2, 4) can be pushed together and/or inside one another in a telescoping manner, wherein the second rod part (4) forms a guide cylinder (4a) and the first rod part (2) a piston element (3) which can be pushed longitudinally in the guide cylinder (4a), wherein a high-pressure chamber (4b), into which at least one oil channel (10) opens, is clamped between the first and the second rod parts (2, 4). To enable the compression ratio to be adjusted in the simplest and most reliable manner possible, according to the invention the two rod parts (2, 4) can be fixed, by a locking device (32), relative to one another in at least one position, preferably corresponding to a minimum length of the con rod (1).
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