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1.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
申请人： CUMMINS INC.
发明人： Xiang Guo
CPC分类号： F01L1/053 , F02F1/242 , F02F1/4285
摘要： 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
申请人： MAN Truck & Bus SE
CPC分类号： F01L13/06 , F01L1/181 , F01L1/267 , F01L1/46 , F01L1/053 , F01L2001/186 , F01L2001/2444 , F01L13/065 , F01L2305/02 , F01L2820/031
摘要： 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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公开(公告)号：US12025034B2
公开(公告)日：2024-07-02
申请号：US17536876
申请日：2021-11-29
申请人： Cummins Inc.
发明人： Adam C. Cecil
CPC分类号： F01L1/053 , F01L1/3442 , F01L2001/0476 , F01L2001/0537 , F01L2001/054 , F01L2001/34423
摘要： 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
发明人： Long WANG , Nicola ANDRISANI
摘要： 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
发明人： Per Persson , Martin Svensson
CPC分类号： 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
摘要： 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
发明人： Ondrej CISAR , Zdenek HUBNER
CPC分类号： F01L1/181 , F01L2001/467 , F01L13/0015 , F01L1/053
摘要： 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
申请人： UniGen Power Inc.
IPC分类号： F01L1/02 , F01L1/053 , H02K7/18 , F02B75/22 , F01B1/06 , F02B63/04 , F01L1/047 , F01P3/02 , F01L1/18
CPC分类号： 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
摘要： 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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公开(公告)号：US20190003351A1
公开(公告)日：2019-01-03
申请号：US16023469
申请日：2018-06-29
发明人： Dai KATAOKA , Yoshihiro TAKADA
CPC分类号： F01L13/0036 , F01L1/022 , F01L1/026 , F01L1/053 , F01L2001/0473 , F01L2001/0537 , F01L2013/0052 , F01L2013/105 , F01L2250/02 , F02F7/0021 , F02F2007/0041
摘要： An engine variable valve operating apparatus includes a cam switching mechanism having a switching drive shaft. When the switching drive shaft is longitudinally moved, a cam mechanism advances and retracts a switching pin. When the switching pin is advanced to engage in a lead groove formed around a cam carrier and the cam carrier is axially moved while rotating, cam lobes around the cam carrier are switched to act on an engine valve. An actuator for the switching drive shaft includes an actuator drive body which is linearly reciprocally movable and is coupled to a longitudinal end of the switching drive shaft to axially move the same. The above arrangement enables the cam switching mechanism and the actuator mechanism to be simple and compact in structure for preventing the engine from becoming large in size.
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公开(公告)号：US20180347413A1
公开(公告)日：2018-12-06
申请号：US15612563
申请日：2017-06-02
发明人： Todd Simcina , Bradley P. Bergsma , Justin LaPorte , Rong Zhang
CPC分类号： F01L1/2416 , F01L1/047 , F01L1/053 , F01L1/146 , F01L1/18 , F01L1/185 , F01L1/2405 , F01L9/025 , F01L2001/2427 , F01L2105/00 , F01L2810/03
摘要： A variable valve train module selectively controls the opening and closing of a valve of an engine. The variable valve train module includes a drive element configured to be driven by a cam which rotates on a camshaft, a pump which is driven by the drive element, and a hydraulic control unit. The hydraulic control unit is configured to control the engine valve. The hydraulic control unit has a high pressure chamber containing hydraulic fluid which is selectively pressurized by the pump. The hydraulic control unit also has a control valve which is configured to depressurize the high pressure chamber, and a damper which is configured to increase an effective volume of the high pressure chamber when a pressure in the high pressure chamber exceeds a threshold value.
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公开(公告)号：US20180328272A1
公开(公告)日：2018-11-15
申请号：US16044660
申请日：2018-07-25
发明人： Blaine D. Kaeser , Matthew R. Fronk , Michael C. Bartholomew , Urs Wenger , Hans-Rudolf Jenni , Neil A. Wright
IPC分类号： F02B67/04 , F02B61/02 , F01L1/053 , F01P3/02 , F01P5/12 , F04D13/02 , F02F7/00 , F02F1/24 , F02F1/10 , F01L1/02 , F01L1/047 , F16H1/20
CPC分类号： F02B67/04 , F01L1/026 , F01L1/053 , F01L2001/0476 , F01P3/02 , F01P5/12 , F01P2003/021 , F02B61/02 , F02F1/10 , F02F1/242 , F02F7/006 , F02F2001/104 , F04D13/02 , F16H1/20
摘要： An engine is disclosed of the V-configuration having an integrated engine and transmission. The engine has a crankshaft which directly couples to drive the water pump, oil pump and transmission clutch. The water pump has a drive shaft coupled to the crankshaft that extends across the crankcase from a first to a second side. The water pump includes a housing where at least a portion is defined in the face of the crankshaft.
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