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公开(公告)号：US12221910B2
公开(公告)日：2025-02-11
申请号：US18460176
申请日：2023-09-01
Applicant: SUZUKI MOTOR CORPORATION
Inventor： Hisashi Ozeki
Abstract: A variable valve device includes a pair of cam housings separated in a predetermined direction, a rocker shaft supported by the pair of cam housings, rocker arms supported by the rocker shaft, a connecting pin disposed in a pin hole of one of the rocker arms, a return pin disposed in a pin hole of another of the rocker arms, a pressing member that causes the connecting pin to push the return pin to the other side, a repulsive member that causes the return pin to push back the connecting pin to one side, and an upper housing supported at both ends by upper surfaces of the pair of cam housings. In the variable valve device, the upper housing is formed with a first accommodation hole in which the pressing member is disposed and a second accommodation hole in which the repulsive member is disposed.
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公开(公告)号：US20250035016A1
公开(公告)日：2025-01-30
申请号：US18487465
申请日：2023-10-16
Applicant: Anthony Strussione
Inventor： Anthony Strussione
Abstract: An improved cylinder head valve assembly design 10 that allows the valve head 16 to open and close at higher RPM's without valve float and no lash adjustments. More power is generated which can equate to better gas mileage. The design also allows for a lighter camshaft 30 enclosed in an oil compartment 62 for better cooling and less overall engine weight.
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公开(公告)号：US20240392708A1
公开(公告)日：2024-11-28
申请号：US18649993
申请日：2024-04-29
Applicant: Ralf Centmayer , Lars Kubrinski
Inventor： Ralf Centmayer , Lars Kubrinski
Abstract: The present disclosure relates to an engine assembly for a vehicle. The engine assembly comprises an engine including a cylinder head and an engine block. The engine block comprises a cylinder block and a crankcase having a crankshaft. The engine may be used in different models of the vehicle having different characteristics by interchanging or replacing the cylinder head from a plurality of cylinder heads and/or a cylinder block from a plurality of cylinder blocks, while keeping one or more engine components such as the crankcase, a timing chain, or a valve cover the same. Accordingly, the engine is adaptable to different vehicles.
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4.发明公开公开(公告)号：US20240360776A1
公开(公告)日：2024-10-31
申请号：US18642965
申请日：2024-04-23
Applicant: CUMMINS INC.
Inventor： Xiang Guo
CPC classification number: F01L1/053 , F02F1/242 , F02F1/4285
Abstract: The application relates to a camshaft carrier for supporting a camshaft, an engine system, and a method of assembly. An engine system includes a cylinder block, a cylinder head, a camshaft carrier, a camshaft, and a fuel injector assembly. The cylinder head is coupled to the cylinder block and defines at least one of an inlet passage or an exhaust passage therein. The camshaft carrier is coupled to the cylinder head and the camshaft is coupled to the camshaft carrier. The fuel injector assembly is coupled to the camshaft carrier and extends through a carrier sidewall of the camshaft carrier.
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公开(公告)号：US12060815B2
公开(公告)日：2024-08-13
申请号：US17629320
申请日：2020-07-17
Applicant: MAN Truck & Bus SE
Inventor： Thomas Malischewski , Steffen Hirschmann , Andreas Bug
CPC classification number: F01L13/06 , F01L1/181 , F01L1/267 , F01L1/46 , F01L1/053 , F01L2001/186 , F01L2001/2444 , F01L13/065 , F01L2305/02 , F01L2820/031
Abstract: The invention relates to a variable valve train for switching an outlet valve of an internal combustion engine to an engine braking mode. The variable valve train has a camshaft with a first cam, which is designed as a normal operation cam, and a second cam, which is designed as an engine braking cam. A first rocking lever has a first stroke device which is designed for selectively making or breaking a first operative connection between the first cam and the outlet valve by means of the first rocking lever. A second rocking lever has a second stroke device which is designed for selectively making or breaking a second operative connection between the second cam and the outlet valve by means of the second rocking lever. A valve device selectively connects the first stroke device or the second stroke device to a fluid feed line.
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Patent Agency Ranking
公开(公告)号：US12025034B2
公开(公告)日：2024-07-02
申请号：US17536876
申请日：2021-11-29
Applicant: Cummins Inc.
Inventor： Adam C. Cecil
CPC classification number: F01L1/053 , F01L1/3442 , F01L2001/0476 , F01L2001/0537 , F01L2001/054 , F01L2001/34423
Abstract: A camshaft assembly for attachment to a cylinder head of an internal combustion engine, the camshaft assembly includes a one-piece camshaft bearing cap having an internal bearing surface sized to receive a portion of a camshaft therein, the internal bearing surface configured to support the portion of the camshaft between 180 degrees and 360 degrees circumferentially. The one-piece camshaft bearing cap is removable from the camshaft to enable line of sight access by an operator to the cylinder head. The internal bearing surface has oil supply grooves fluidly coupled to drillings for operation of a cam phaser assembled with a drive member and the camshaft. Head bolts are used to attach the cylinder head to the engine and are accessible upon removal of the camshaft bearing cap and camshaft. Standard camshaft bearing caps can be assembled with the camshaft and the cylinder head at various attachment points.
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公开(公告)号：US20240209758A1
公开(公告)日：2024-06-27
申请号：US18557150
申请日：2022-04-26
Applicant: Eaton Intelligent Power Limited
Inventor： Long WANG , Nicola ANDRISANI
Abstract: A combined exhaust and engine brake rocker arm assembly (20) configured to selectively open first and second exhaust valves (26, 28) includes a rocker arm body (40), an exhaust rocker arm assembly (16) formed in the rocker arm body (40), and a lost motion spigot assembly (56) including an adjustment nut (70) and guide (62) configured to receive a shaft assembly (60) for adjusting a lash of the lost motion spigot assembly (56). The shaft assembly is disposed within a bore (92) of the adjustment nut below an upper surface thereof, and an engine brake rocker arm assembly (18) is formed in the rocker arm body (40) and configured to operate in a collapse mode and a rigid mode. The lost motion spigot assembly (56) is configured to selectively engage a valve bridge (52) to open the first and second exhaust valves (26, 28), and the engine brake rocker arm assembly (18) is configured to selectively engage the valve bridge (52) to open only the first exhaust valve (26).
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公开(公告)号：US11959425B2
公开(公告)日：2024-04-16
申请号：US17756010
申请日：2019-11-13
Applicant: VOLVO TRUCK CORPORATION
Inventor： Per Persson , Martin Svensson
CPC classification number: F02D13/0207 , F01L1/053 , F01L1/344 , F01L13/0015 , F02D13/0265 , F02D41/0245 , F01L2001/0537 , F01L2001/34496 , F01L2013/105 , F01L2201/00 , F01L2820/01 , F02D2041/001 , F02D2200/0802
Abstract: A method for controlling a valve arrangement for an internal combustion engine, the valve arrangement including a piston arrangement comprising a piston having a piston end portion facing an inlet valve of the valve arrangement. The method includes receiving a signal indicative of a temperature level of an exhaust gas after treatment system and when the signal indicates a temperature level below a predetermined threshold level: advancing an exhaust event of the internal combustion engine; and controlling the piston arrangement for reducing the distance between the piston end portion and the inlet valve before the internal combustion engine assumes an air intake event.
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公开(公告)号：US20230407770A1
公开(公告)日：2023-12-21
申请号：US18246888
申请日：2021-10-01
Applicant: Eaton Intelligent Power Limited
Inventor： Ondrej CISAR , Zdenek HUBNER
CPC classification number: F01L1/181 , F01L2001/467 , F01L13/0015 , F01L1/053
Abstract: A center pivot roller rocker arm assembly can comprise a main roller rocker arm, a second roller rocker arm, and a latching assembly. The main roller rocker arm can comprise a rocker shaft bore, a valve end, a cam end, and a main cam surface on the cam end. The second roller rocker arm can comprise a second rocker shaft bore, a second cam end, and a second cam surface on the second cam end. The latching assembly can be coupled to the rocker shaft bore and configured to latch and unlatch the main roller rocker arm to the second roller rocker arm. A lost motion assembly can be configured with the main and second roller rocker arms. A main cam surface can have a different extent for receiving cam actuation than a second cam surface.
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公开(公告)号：US11788437B2
公开(公告)日：2023-10-17
申请号：US17851803
申请日：2022-06-28
Applicant: UniGen Power Inc.
Inventor： Anthony Joseph Carmen , Nitesh Dindorkar
IPC: F01L1/02 , F01L1/053 , H02K7/18 , F02B75/22 , F01B1/06 , F02B63/04 , F01L1/047 , F01P3/02 , F01L1/18
CPC classification number: F01L1/026 , F01B1/062 , F01L1/022 , F01L1/053 , F02B63/04 , F02B75/222 , H02K7/1815 , F01L1/181 , F01L2001/0476 , F01L2001/0535 , F01L2250/02 , F01L2250/06 , F01P2003/021
Abstract: A radial engine-generator includes an electric power generator and a radial engine. The radial engine-generator can be a mobile and portable unit, and is employable as a primary or back-up source of electric power at data centers, manufacturing facilities, electric vehicle charging stations, medical facilities, telecommunications, and residential neighborhoods, among many other applications. The electric power generator and radial engine are coupled together. The radial engine includes, among other components, multiple cylinders, multiple cylinder heads, and multiple overhead camshaft assemblies. The overhead camshaft assemblies are located at the cylinder heads and each include one or more camshafts. The camshaft(s) receive rotational drive input from a crankshaft of the radial engine. In certain implementations, camshaft carrier assemblies can be provided to support components of the overhead camshaft assemblies.
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