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公开(公告)号：US12049843B2
公开(公告)日：2024-07-30
申请号：US17910795
申请日：2021-03-16
Applicant: AVL LIST GMBH
Inventor： Martin Klampfer , Andreas Zurk
Abstract: The invention relates to a cylinder head (1) with at least one recess (23) for arranging at least one gas valve (20) and at least one spark plug (15). The spark plug (15) reaches into a pre-chamber (17) and is arranged along a spark plug rotational axis (16), and the gas valve (20) is arranged along a gas valve rotational axis (19), wherein the gas valve rotational axis (19) is inclined relative to the spark plug rotational axis (16), and the distance (A) between the gas valve rotational axis (19) and the spark plug rotational axis (16) decreases as the distance to the pre-chamber (17) increases in a direction facing away from the combustion chamber (2). The aim of the invention is to provide an improved cylinder head (1) which allows an improved assembly and requires less installation space. According to the invention, this is achieved by the aforementioned cylinder head (1) in that the recess (23) for the spark plug (15) and the gas valve (20) has a surface (0) which is formed by a primary molding process, preferably a casting process, and is post-processed particularly preferably without machining.
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公开(公告)号：US11905909B2
公开(公告)日：2024-02-20
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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公开(公告)号：US12253012B2
公开(公告)日：2025-03-18
申请号：US18042663
申请日：2021-08-24
Applicant: AVL LIST GMBH
Inventor： Martin Klampfer , Andreas Zurk , Thomas Salmutter
Abstract: The invention relates to a valve-actuating device for actuating a valve of a reciprocating piston engine, comprising a first and second rocker arm rotatably mounted about a common rotational axis; a pushrod connected to the first rocker arm so as to transmit an actuating movement of the first rocker arm to a valve; a first and second cam arranged on a shaft, where the first rocker arm marks a contour of the first cam and the second rocker arm marks a contour of the second cam, where the rocker arms are connected together via a mechanical coupling apparatus having a locking element able to be brought into at least a first position and a second position and configured to transmit an actuating movement of the second rocker arm to the first rocker arm at least in the first position of the locking element; and a switching device having a slotted guide element which is designed to bring the locking element of the coupling apparatus at least from the first position to the second position and vice-versa.
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公开(公告)号：US11891946B2
公开(公告)日：2024-02-06
申请号：US17424876
申请日：2020-01-22
Applicant: AVL List GmbH
Inventor： Andreas Puschnik , Christof Knollmayr , Andreas Zurk , Martin Klampfer
CPC classification number: F02B19/12 , F02F1/242 , F02F2200/00
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：US11519357B2
公开(公告)日：2022-12-06
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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Patent Agency Ranking
公开(公告)号：US20220082062A1
公开(公告)日：2022-03-17
申请号：US17424877
申请日：2020-01-23
Applicant: AVL List GmbH
Inventor： Martin Klampfer , Andreas Zurk
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 hounding the combustion chamber, and the component is connected to the plurality of cylinder head screws.
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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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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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