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公开(公告)号：US20240141841A1
公开(公告)日：2024-05-02
申请号：US18408094
申请日：2024-01-09
CPC分类号： F02D15/02 , F02B75/047 , F02B75/048 , F02D15/04 , F16C3/28
摘要： A variable compression ratio device is configured to be incorporated into an internal combustion engine. The internal combustion engine includes one or more cylinders housing pistons that are coupled to a crankshaft. The variable compression ratio device includes a rotation coupler assembly formed by gears that have internal and external teeth, the rotation coupler assembly being disposed at a distal end of the crankshaft to cause the crankshaft to rotate. Translation variations of the crankshaft are to be converted into rotation and transmitted to at least one of a toothed gear or a flange of a flywheel.
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公开(公告)号：US11713726B2
公开(公告)日：2023-08-01
申请号：US17291377
申请日：2018-11-06
发明人： Tomoyuki Koike
CPC分类号： F02D15/02 , B63H21/21 , B63H23/30 , F02B75/047 , F02D41/042 , B63H2021/216
摘要： An internal combustion engine (1) for a vehicle is equipped with a variable compression ratio mechanism (2) capable of changing the mechanical compression ratio. An idle stop, which is for automatically stopping the internal combustion engine (1) when the vehicle stops, and a sailing stop, which is for stopping the internal combustion engine (1) in conjunction with the release of a forward clutch (8) during inertial travel, are carried out. A target compression ratio during normal travel is set on the basis of the load and rotation speed of the internal combustion engine (1). During an idle stop the target compression ratio is set to an idle stop restart compression ratio (εis). During a sailing stop the target compression ratio is set to a sailing stop restart compression ratio (εss). The sailing stop restart compression ratio (εss) is lower than the idle stop restart compression ratio (εis).
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公开(公告)号：US20230042411A1
公开(公告)日：2023-02-09
申请号：US17755606
申请日：2020-11-04
申请人： MCE 5 Development
发明人： René-Pierre BERTHEAU
摘要： A variable-length connecting rod comprises: a connecting rod head, designed to establish a pivot connection with a crankpin of a crankshaft, a hydraulic circuit for controlling the length of the connecting rod, and a system for controlling the hydraulic circuit. The control system comprises: at least one linear hydraulic slide arranged within a housing of the connecting rod head, at least a first shoe arranged on a sidewall of the connecting rod head, suitable for undergoing a bearing force exerted by a controlling member, the bearing force allowing the slide to be moved, a return means for bringing the slide back to its resting position in the absence of the bearing force, At and at least a second shoe arranged on the sidewall of the connecting rod head and suitable for undergoing the bearing force.
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公开(公告)号：US20220220890A1
公开(公告)日：2022-07-14
申请号：US17385076
申请日：2021-07-26
申请人： Robert P. HOGAN
发明人： Robert P. HOGAN
摘要： Throttle-at-valve apparatus, internal combustion engines employing throttle-at-valve apparatus, and methods of throttling an internal combustion engine using a throttle-at-valve apparatus, where the throttle-at-valve apparatus includes a throttle slide body disposed within a throttle slide cavity that is defined between and in fluid communication with both an unobstructed air intake passage and an intake valve of an internal combustion engine, where the air flow from the air intake passage to the intake valve is regulated by the reciprocal movement of the throttle slide body within the throttle slide cavity.
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公开(公告)号：US20220220888A1
公开(公告)日：2022-07-14
申请号：US17244565
申请日：2021-04-29
申请人： Robert P. Hogan
发明人： Robert P. Hogan
摘要： An example embodiment of an all-stroke-variable internal combustion engine may include a piston slidably positioned within an engine cylinder for asymmetrical reciprocation and a primary crankshaft and a half-speed crankshaft to be operatively engaged for rotation of the half-speed crankshaft at half of a speed of the primary crankshaft, wherein the rotation of the half-speed crankshaft at half of the speed of the primary crankshaft to result in the asymmetrical reciprocation of the piston so as to produce a stroke length that is independently variable over four distinct strokes of a full cycle of the all-stroke-variable internal combustion engine.
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公开(公告)号：US11118504B2
公开(公告)日：2021-09-14
申请号：US16745652
申请日：2020-01-17
申请人： Tsung-Yung Hsu
发明人： Tsung-Yung Hsu
摘要： An expanded torque system of an internal combustion engine includes a cylinder having an upper piston bore, a lower piston bore and a lower action chamber. An upper piston is connected to the upper link rod and reciprocally moves in the upper piston bore. A linkage unit has a link block coupled to the upper link rod. A lower piston moves in the lower piston bore and is connected to the link block. A lower link rod is disposed at the lower action chamber and is pivotally coupled between the linkage unit and a lower link rod pivoting handle. A crank shaft is disposed at the lower action chamber and has a main shaft and the lower link rod pivoting handle eccentrically connected to the main shaft. An oil ring with oil outlets is disposed at the top of the lower action chamber and communicates with a main oil duct.
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公开(公告)号：US11105281B2
公开(公告)日：2021-08-31
申请号：US17021357
申请日：2020-09-15
申请人： IHI CORPORATION
摘要： Provided is a marine engine, including: an air controller configured to supply compressed air to a combustion chamber in an upstroke of a piston after a crash astern signal is output; a fuel controller configured to stop supply of fuel to the combustion chamber when the crash astern signal is output, and to resume the supply of the fuel after a backward rotation of a crankshaft; and a compression ratio controller configured to move a top dead center position of the piston toward an opposite side of a bottom dead center position of the piston when the crash astern signal is output, and the top dead center position of the piston is on the bottom dead center position side with respect to a predetermined position set in advance.
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公开(公告)号：US10954850B2
公开(公告)日：2021-03-23
申请号：US16360261
申请日：2019-03-21
申请人： ECO Holding 1 GmbH
发明人： David Huber , Dietmar Schulze , Mario Witopil
摘要： A connecting rod for a variable compression internal combustion engine, the connecting rod an eccentrical element adjustment arrangement for adjusting an effective connecting rod length, the eccentrical element adjustment arrangement including a first cylinder including a first hydraulic chamber and a second cylinder including a second hydraulic chamber, a first inlet for feeding hydraulic fluid into the first cylinder from a supply and a first outlet for draining the hydraulic fluid from the first cylinder, a second inlet for feeding hydraulic fluid into the second cylinder from the supply and a second outlet for draining the hydraulic fluid from the second cylinder, a switch valve for controlling a hydraulic fluid flow, the switch valve including a piston that is movable in a housing, wherein the piston is displaceable into a first switching position or a second switching position, wherein the second outlet of the second cylinder is connected with the supply in the first switching position and the first outlet of the first cylinder is connected with the supply in the second switching position, wherein the first cylinder is associated with a first check valve which facilitates feeding hydraulic fluid into the first cylinder and which prevents draining the hydraulic fluid from the first cylinder, wherein the second cylinder is associated with a second check valve which facilitates feeding hydraulic fluid into the second cylinder and which prevents draining hydraulic fluid from the second cylinder, wherein the first cylinder and the second cylinder are connected so that hydraulic fluid is conductible from the first cylinder into the second cylinder directly with a defined pressure drop in the second switching position.
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公开(公告)号：US10954849B2
公开(公告)日：2021-03-23
申请号：US16062217
申请日：2016-08-10
申请人： AVL LIST GMBH
发明人： Helmut Melde-Tuczai , Mario Theissl , Siegfried Loesch , Abdelkarim Redouane , Florian Bodensteiner , Anamaria Munteanu , Miroslaw Robaczewski , Katrin Wand
摘要： The invention relates to a length-adjustable connecting rod for a reciprocating piston engine, particularly a reciprocating piston internal combustion engine, comprising a hydraulic arrangement with which a length of the connecting rod can be adjusted, and a switching valve for controlling the inflow and outflow of a hydraulic medium into or out of the hydraulic arrangement, wherein the switching valve can be actuated electromagnetically.
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公开(公告)号：US20210033023A1
公开(公告)日：2021-02-04
申请号：US16529226
申请日：2019-08-01
发明人： Andrei Makartchouk
摘要： A compression ratio varying arrangement of an engine is adapted to work with a crankshaft having at least one crankpin offset from the centerline of the crankshaft. An eccentric has an internal bore engaged with the crankpin, and an external cylindrical surface that has a centerline that is offset from the centerline of the internal bore. A connecting rod is engaged with the external cylindrical surface of the eccentric, and a piston is connected to the connecting rod. An eccentric lever is attached to the eccentric. A compression ratio adjustment link is connected to the eccentric lever. A compression ratio adjustment mechanism is connected to the compression ratio adjustment link. The compression ratio adjustment mechanism controls the orientation of the connecting rod eccentric, and thereby the compression ratio of the engine, by extending or retracting the compression ratio adjustment link.
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