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公开(公告)号：US20180119583A1
公开(公告)日：2018-05-03
申请号：US15566993
申请日：2016-04-15
Applicant: FREEVALVE AB
Inventor： Anders HOGLUND , Urban CARLSON
Abstract: Disclosed is an actuator including a cylinder volume having a first portion, and an actuator piston disc displaceable in the cylinder between inactive and active positions, an inlet channel between a pressure fluid inlet and the first portion of the cylinder volume, a first inlet valve body in the inlet channel, an outlet channel between the first portion of the cylinder volume and a pressure fluid outlet, and an outlet valve body in the outlet channel. The slave piston is displaceable in a bore between inactive and active positions. The first inlet valve body includes a seat valve body having an inactive position closing the inlet channel, the slave piston, in moving from inactive to active positions, rams the first inlet valve body, displacing it to an active position at which the inlet channel is open, the outlet valve body being connected to and jointly displaceable with the slave piston.
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2.发明申请COMBUSTION ENGINE AND GAS HANDLING SYSTEM FOR PNEUMATIC OPERATION OF A VALVE ACTUATOR 审中-公开用于气门执行器气动操作的燃烧发动机和气体处理系统公开(公告)号：US20160237866A1
公开(公告)日：2016-08-18
申请号：US15025436
申请日：2014-10-08
Applicant: FREEVALVE AB
Inventor： Anders HOGLUND , Urban CARLSON , Christian VON KOENIGSEGG
IPC: F01L9/02
Abstract: A combustion engine includes, a first controllable engine valve (8) arranged to selectively open/close a combustion chamber (7) included in the combustion engine (1), and a gas handling system arranged to drive the first engine valve (8), which gas handling system includes a closed pneumatic pressure fluid circuit, wherein the closed pressure fluid circuit includes, coupled in series with each other, a compressor (31) and a valve actuator (10) that are operatively connected to the first engine valve (8). The combustion engine is characterized by the gas handling system further including a gas accumulator (38) that is connected with the closed pressure fluid circuit via at least one gas accumulator conduit (39), which includes a controllable valve (40). A gas handling system for pneumatic control of a valve actuator is also described.
Abstract translation: 内燃机包括：第一可控发动机气门（8），其布置成选择性地打开/关闭包括在内燃机（1）中的燃烧室（7）;以及气体处理系统，其布置成驱动第一发动机气门（8） 所述气体处理系统包括封闭的气动压力流体回路，其中所述闭合压力流体回路包括彼此串联连接的压缩机（31）和阀致动器（10），所述压缩机（31）和阀致动器（10）可操作地连接到所述第一发动机气门 ）。 燃烧发动机的特征在于气体处理系统还包括气体蓄积器（38），其通过包括可控阀（40）的至少一个气体收集器管道（39）与闭合压力流体回路连接。 还描述了用于阀致动器的气动控制的气体处理系统。
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公开(公告)号：US20160237864A1
公开(公告)日：2016-08-18
申请号：US15025396
申请日：2014-10-08
Applicant: FREEVALVE AB
Inventor： Anders HOGLUND , Urban CARLSON , Christian VON KOENIGSEGG
CPC classification number: F01L9/02 , F02F1/24 , F02F2001/245
Abstract: A combustion engine includes, a cylinder head including a controllable first engine valve arranged to selectively open/close a combustion chamber included in the combustion engine, a first valve actuator operatively connected to the first engine valve, which first valve actuator includes at least one inlet opening for pressure fluid and at least one outlet opening for pressure fluid, and a closed pressure fluid circuit, wherein the first valve actuator is arranged in the closed pressure fluid circuit. The combustion engine further includes a cylinder head chamber that forms part of the closed pressure fluid circuit and that is delimited by the cylinder head and at least a first cylinder head mantle, wherein the at least one outlet opening of the first valve actuator is in fluid communication with the cylinder head chamber. A mantle assembly for a cylinder head of a combustion engine is also described.
Abstract translation: 内燃机包括：气缸盖，其包括可选择地打开/关闭包括在内燃机中的燃烧室的可控制的第一发动机气门，与第一发动机阀可操作地连接的第一阀致动器，该第一阀致动器包括至少一个入口 用于压力流体的开口和用于压力流体的至少一个出口，以及封闭压力流体回路，其中第一阀致动器布置在闭合压力流体回路中。 所述内燃机还包括气缸盖室，其形成所述封闭压力流体回路的一部分并且由所述气缸盖和至少第一气缸盖罩限定，其中所述第一阀致动器的所述至少一个出口开口处于流体 与气缸盖室连通。 还描述了用于内燃机的气缸盖的地套组件。
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4.发明申请公开(公告)号：US20200256288A1
公开(公告)日：2020-08-13
申请号：US16645873
申请日：2018-09-10
Applicant: FREEVALVE AB
Inventor： Anders HÖGLUND , Urban CARLSON
Abstract: An internal combustion engine includes combustion chambers, each having a controllable intake valve opening and closing an intake port, a controllable exhaust valve opening and closing an exhaust port, a piston displaceable back and forth in the combustion chamber between a top dead center and a bottom dead center, and a fuel injector. The engine further including an intake manifold connected to the intake port of each combustion chamber. The engine can be operated in a low load mode, wherein each combustion chamber is driven in four-stroke operation including a 720 crank angle degrees cycle, and opens the intake port during the exhaust stroke, the intake port starting to open in 610-690 CAD, closing the exhaust port during the exhaust stroke, becoming fully closed in 630-710 CAD, forcing exhaust gas into the intake manifold by the piston, and mixing fuel and exhaust gas in the intake manifold.
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公开(公告)号：US20170037750A1
公开(公告)日：2017-02-09
申请号：US15304616
申请日：2015-04-15
Applicant: FREEVALVE AB
Inventor： Anders HOGLUND , Urban CARLSON , Christian KOENIGSEGG , Lars IVARSSON
Abstract: A combustion engine includes an engine valve arranged to selectively open/close a combustion chamber of the engine, a cylinder head adjacent the combustion chamber, arranged to guide a valve stem of the engine valve, the engine valve being axially displaceable relative to the cylinder head between the combustion chamber closed position and the combustion chamber fully opened position, and a valve spring retainer connected to the valve stem. The valve spring retainer partly delimits a gas spring volume, which is in fluid communication with an adjacent gas volume via a port when the engine valve is in the combustion chamber closed position, and which is separated from the adjacent gas volume when the engine valve is in the combustion chamber fully open position, the port being open during at least 25% of the maximal stroke of the engine valve and being closed due to a displacement of the engine valve.
Abstract translation: 内燃机包括：发动机阀，其布置成选择性地打开/关闭发动机的燃烧室，邻近燃烧室的气缸盖，其布置成引导发动机气门的阀杆，发动机气门相对于气缸盖轴向移位 在燃烧室关闭位置和燃烧室完全打开位置之间，以及连接到阀杆的阀弹簧保持器。 阀弹簧保持器部分地限定气体弹簧体积，当发动机气门处于燃烧室关闭位置时，气弹簧体积通过端口与邻近的气体体积流体连通，并且当发动机气门是 在燃烧室完全打开位置，端口在发动机气门的最大行程的至少25％内打开，并由于发动机气门的位移而关闭。
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Patent Agency Ranking
公开(公告)号：US20180119829A1
公开(公告)日：2018-05-03
申请号：US15566811
申请日：2016-04-15
Applicant: FREEVALVE AB
Inventor： Anders HOGLUND , Urban CARLSON
Abstract: Disclosed is a multi-way valve including a control pressure channel, a first control fluid channel between a first opening and the control pressure channel, a second control fluid channel between a second opening and the control pressure channel, a valve body in the first and second control fluid channels, and an electrically controlled device having a drive member and an armature. The armature moves axially according to the drive member between inactive and active positions. Movement of the armature from inactive to active displaces the valve body arrangement to an active position where the first control fluid channel is closed and the second control fluid channel is open. The device further includes a drive body connected to the armature and a spring between the armature and drive body. The drive body abuts the valve body and the spring in a compressed state when the armature is in active position.
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公开(公告)号：US20180100413A1
公开(公告)日：2018-04-12
申请号：US15567035
申请日：2016-04-15
Applicant: FREEVALVE AB
Inventor： Anders HOGLUND , Urban CARLSON
IPC: F01L9/02
Abstract: Disclosed is an actuator for axial displacement of an object, including a cylinder volume having a first portion, and an actuator piston disc displaceable in the axial direction in the cylinder volume between inactive and active positions, an inlet channel between a pressure fluid inlet and the first portion of the cylinder volume, a first inlet valve body in the inlet channel, an outlet channel between the first portion of the cylinder volume and a pressure fluid outlet, and an outlet valve body in the outlet channel. The slave piston is displaceable in a bore, the slave piston displacing the first inlet valve body to an active position, and interacting with an opening connecting the bore and a control pressure channel, the opening having a first flow area with the slave piston in its inactive position and a larger second flow area with the slave piston in its active position.
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公开(公告)号：US20230088803A1
公开(公告)日：2023-03-23
申请号：US17908435
申请日：2021-03-01
Applicant: FREEVALVE AB
Inventor： Anders HÖGLUND , Eric GRIESS , Daniel JAKOBSSON , Urban CARLSON
Abstract: An actuator and a method for controlling such an actuator suitable for operating at least one gas exchange valve arranged in a cylinder head of an internal combustion engine. The actuator includes: an actuator piston disc, a cylinder volume adapted for the actuator piston disc, where the actuator piston disc divides the cylinder volume in a first portion and a second portion, an inlet channel arranged between a pressure fluid inlet and the first portion of the cylinder volume, a controllable first inlet valve arranged in the inlet channel, a controllable second inlet valve arranged downstream the controllable first inlet valve, an outlet channel arranged between the first portion of the cylinder volume and a pressure fluid outlet, and a controllable outlet valve arranged in the outlet channel.
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公开(公告)号：US20220147075A1
公开(公告)日：2022-05-12
申请号：US17435228
申请日：2020-02-25
Applicant: FREEVALVE AB
Inventor： Urban CARLSON , Rowhan Toi NEILSON
Abstract: A pressure fluid handling system includes a closed pressure fluid circuit. The pressure fluid circuit includes, connected in series, a compressor and a pressure sink and a primary pressure fluid route from the compressor to the pressure sink and a secondary pressure fluid route from the pressure sink to the compressor. The pressure fluid handling system further includes a pressure fluid accumulator connected to the pressure fluid circuit via a first pressure fluid accumulator conduit. The first pressure fluid accumulator conduit includes a pump configured to pump pressure fluid from the pressure fluid circuit to the pressure fluid accumulator to lower the pressure levels in the pressure fluid circuit, and in that the pressure fluid handling system includes a controllable component for returning the pressure fluid from the pressure fluid accumulator to the pressure fluid circuit to increase the pressure levels in the pressure fluid circuit.
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10.发明申请公开(公告)号：US20200277909A1
公开(公告)日：2020-09-03
申请号：US16645895
申请日：2018-09-10
Applicant: FREEVALVE AB
Inventor： Anders HÖGLUND , Urban CARLSON
Abstract: An internal combustion engine includes combustion chambers, each having a controllable intake valve controlling an intake port, a controllable exhaust valve controlling an exhaust port, a piston, and a fuel injector. An intake manifold is connected to the intake port of each chamber. In catalytic converter warm-up mode, each chamber is driven in four-stroke operation including a 720 crank angle degrees cycle, and opens the intake port, starting to open in 90-180 CAD, and fully closes the intake port in 180-270 CAD, opens the exhaust port during the power stroke, starting in 405-495 CAD, opens the intake port during the exhaust stroke, starting in 610-690 CAD, and fully closes the exhaust port during the exhaust stroke in 630-710 CAD. Exhaust gas is forced into the intake manifold by the piston, mixing fuel and exhaust in the intake manifold, and fully closes the intake port in 700 to 720+20 CAD.
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