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公开(公告)号：US11959403B2
公开(公告)日：2024-04-16
申请号：US17342883
申请日：2021-06-09
申请人： Neil A Murphy
发明人： Neil A Murphy
CPC分类号： F01L13/0036 , F01L1/047 , F01L1/08 , F01L13/0063 , F01L2013/0052
摘要： A camshaft assembly for a vehicle valvetrain having first and second engine valves includes a camshaft, and a first camshaft cartridge axially displaceable along the camshaft and including a plurality of first cam lobes configured to selectively impart movement to the first engine valve. A second camshaft cartridge is axially displaceable along the camshaft and includes a plurality of second cam lobes configured to selectively impart movement to the second engine valve. An actuator is configured to axially displace the first camshaft cartridge along the camshaft. A coupling is between the first camshaft cartridge and the second camshaft cartridge. Axial displacement of the first camshaft cartridge selectively imparts movement to the second camshaft cartridge for axial displacement of the second camshaft cartridge.
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公开(公告)号：US20190078474A1
公开(公告)日：2019-03-14
申请号：US15830855
申请日：2017-12-04
发明人： Won Seok Lee
CPC分类号： F01L13/06 , F01L1/04 , F01L1/053 , F01L1/08 , F01L1/18 , F01L1/181 , F01L1/2416 , F01L1/267 , F01L13/065 , F01L2013/101 , F01L2013/105 , F01L2105/00
摘要： An engine brake device is provided for attenuating compression. The device is able to brake engine by attenuating a pressure increase in a cylinder by temporarily opening an exhaust valve at the end of a compression stroke of the engine, using an eccentric assembly eccentrically coupled to a pivot center of an exhaust rocker arm and an actuator for pushing up the eccentric assembly.
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公开(公告)号：US20190072011A1
公开(公告)日：2019-03-07
申请号：US15766836
申请日：2016-10-07
发明人： Majo CECUR , Lubos TOMISKA
CPC分类号： F01L13/0036 , F01L1/053 , F01L1/08 , F01L1/18 , F01L1/185 , F01L1/46 , F01L13/00 , F01L13/0005 , F01L2001/186 , F01L2013/105 , F01L2101/00 , F01L2800/10
摘要： An actuator for actuating valve-lift modes of a valve train assembly of an internal combustion engine, The valve train assembly is capable of being switched between a first valve-lift mode and a second valve-lift mode. The actuator includes a first body and a second body, The second body is mounted for reciprocal movement with respect to the first body between a first position to cause the first valve-lift mode and a second position to cause the second valve-lift mode. The actuator includes a third body supported by the second body, the third body for moving a first component of the valve train assembly to cause the second valve-lift mode, The third body is moveable relative to the second body. The actuator includes a first biaser for biasing the third body away from the second body towards the first component of the valve train assembly.
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公开(公告)号：US20190010837A1
公开(公告)日：2019-01-10
申请号：US15804901
申请日：2017-11-06
申请人： BorgWarner Inc.
IPC分类号： F01L1/348
CPC分类号： F01L1/348 , F01L1/047 , F01L1/08 , F01L1/34 , F01L1/34403 , F01L1/34409 , F01L1/34413 , F01L1/3442 , F01L1/352 , F01L2001/34453 , F01L2001/34459 , F01L2013/103 , F01L2250/02 , F01L2250/04 , F01L2820/01 , F01L2820/032
摘要： An engine variable camshaft timing phaser (10) includes a sprocket (12) and a planetary gear assembly (14). The sprocket (12) receives rotational drive input from an engine crankshaft. The planetary gear assembly (14) includes two or more ring gears (26, 28), multiple planet gears (24), a sun gear (22), and a wrap spring (76). One of the ring gears (26, 28) receives rotational drive input from the sprocket (12) and one of the ring gears (26, 28) transmits rotational drive output to an engine camshaft. The sun gear (22) engages with the planet gears (24). The wrap spring (76) experiences expansion and contraction exertions to permit advancing and retarding engine valve opening and closing, and to prevent advancing and retarding engine valve opening and closing.
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公开(公告)号：US20180306073A1
公开(公告)日：2018-10-25
申请号：US16022054
申请日：2018-06-28
申请人： Eaton Corporation
CPC分类号： F01L13/0036 , F01L1/08 , F01L1/185 , F01L1/2405 , F01L2001/186 , F01L2001/467 , F01L2105/00 , F01L2800/08 , F01L2820/01
摘要： A method of providing a rocker arm set for a valvetrain includes providing a first rocker arm configured as a switching rocker arm for a first intake valve, and providing a second rocker arm configured as a fixed rocker arm for a second intake valve, the second rocker arm operating in a normal Otto cycle mode. The first rocker arm operates in a late intake valve closing (LIVC) mode where the first rocker arm is configured to close the first intake valve later than the second intake valve.
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公开(公告)号：US20180306072A1
公开(公告)日：2018-10-25
申请号：US16022042
申请日：2018-06-28
申请人： Eaton Corporation
CPC分类号： F01L13/0036 , F01L1/08 , F01L1/185 , F01L1/2405 , F01L2001/186 , F01L2001/467 , F01L2105/00 , F01L2800/00 , F01L2820/01
摘要： A switching roller finger follower for valve actuation comprises a pair of outer arms comprising an axle mounting. A bridge portion joins the pair of outer arms. A latch assembly comprises a ferrule. The ferrule is configured to reciprocate in a latch recess. An inner arm is pivotably mounted to a main axle and comprises a bearing rotatably mounted to a bearing axle. The bearing is configured to transfer forces from a cam lobe to the inner arm. A catch on the inner arm is configured to latch against the lip when the ferrule is in a first position. The catch can pivot past the ferrule when the ferrule is in a second position.
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公开(公告)号：US10077690B2
公开(公告)日：2018-09-18
申请号：US15248805
申请日：2016-08-26
发明人： Byong Young Choi
CPC分类号： F01L13/0036 , F01L1/053 , F01L1/0532 , F01L1/08 , F01L1/185 , F01L1/2405 , F01L13/0005 , F01L2001/0473 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , F01L2201/00
摘要： A multiple variable valve lift apparatus may include a moving cam formed in a hollow cylindrical shape into which a camshaft is inserted. In particular, the moving cam rotates together with the camshaft, moves in an axial direction of the camshaft, and includes a cam guide protrusion and a plurality of cams realizing different valve lift with each other. Moreover, the apparatus includes: an operating unit selectively guiding the cam guide protrusion; a controller controlling the operating unit; a valve opening/closing unit contacting with any one cam of the cams; and at least two pins disposed at the operating unit so as to guide the cam guide protrusion. The cam guide protrusion includes an inserted portion being selectively inserted between the pins and a shift portion.
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公开(公告)号：US10024286B2
公开(公告)日：2018-07-17
申请号：US15200092
申请日：2016-07-01
申请人： GT Technologies
发明人： John E. Brune , Scott P. Smith
CPC分类号： F02M59/102 , F01L1/047 , F01L1/08 , F01L2107/00 , F02M39/02 , F02M59/06 , F02M2200/50 , F02M2200/852 , F04B1/0426
摘要： A tappet assembly for use in translating force between a camshaft lobe and a fuel pump assembly via reciprocal movement within a tappet cylinder having a guide slot. The tappet assembly includes a bearing assembly having a shaft and a bearing rotatably supported by the shaft for engaging the lobe. An intermediate element has a first aperture, a shelf for engaging the fuel pump assembly, and a pair of arc-shaped bearing surfaces rotatably engaging the shaft when the bearing engages the lobe and the shelf engages the fuel pump assembly. An annular body has a second aperture and at least one stop member abutting the intermediate element to align the first aperture with the second aperture. An anti-rotation clip is disposed so as to extend through the apertures and cooperates with the stop member to substantially prevent rotational and axial movement of the intermediate element with respect to the body.
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公开(公告)号：US20180179921A1
公开(公告)日：2018-06-28
申请号：US15823765
申请日：2017-11-28
发明人： Toshiyuki YANO , Yu YOKOYAMA , Yuta NISHIMURA , Atsuhisa TAMANO , Soichiro SUGA
CPC分类号： F01L13/0036 , F01L1/053 , F01L1/08 , F01L1/185 , F01L1/2405 , F01L2001/0537 , F01L2001/34496 , F01L2013/0052 , F01L2013/0078 , F01L2013/101 , F01L2105/00 , F01L2810/00
摘要： For example, two intake valves for each cylinder each are driven by a selected one of cams via a corresponding rocker arm. Each rocker arm includes a support portion and a pressing portion (distal end portion). The support portion is rockably supported by a cylinder head. The pressing portion is configured to press a stem of the corresponding intake valve. The support portion of one of the rocker arms deviates to one side in an axis X direction (cam axial direction) with respect to the distal end portion. The support portion of the other one of the rocker arms deviates to the other side in the axis X direction with respect to the distal end portion.
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公开(公告)号：US09909467B2
公开(公告)日：2018-03-06
申请号：US14940482
申请日：2015-11-13
发明人： You Sang Son , Kyoung Pyo Ha , Back Sik Kim
CPC分类号： F01L1/352 , F01L1/047 , F01L1/0532 , F01L1/08 , F01L13/0015 , F01L2001/0473 , F01L2013/103
摘要： A continuously variable valve timing apparatus may include a camshaft, a plurality of wheels mounted to the camshaft, of which a wheel key is formed thereto respectively, a plurality of cam portions of which a cam and a cam key are formed thereto respectively, of which the camshaft is inserted thereto, of which relative phase angle with respect to the camshaft is variable, a plurality of inner brackets connected with the each wheel key and the each cam key, a plurality of a slider housings of which the each inner bracket is rotatably inserted thereto respectively, and rotatably configured around a hinge hole formed an upper side of a cam cap and a control portion selectively moving the slider housings to change relative position of a rotation center of the inner brackets.
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