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公开(公告)号：US11773755B2
公开(公告)日：2023-10-03
申请号：US18157005
申请日：2023-01-19
发明人： Yasuto Takashiba
CPC分类号： F01L1/3442 , F01L1/047 , F01L1/053 , F01M9/102 , F01L2001/0476 , F01L2001/0537 , F01L2001/3443 , F01L2001/34423
摘要： There is provided a variable valve timing system, including: a camshaft rotatably supported by a support wall of an engine; a variable valve device configured to advance or retard the camshaft by a hydraulic pressure; and an oil control valve. A thrust stopper is formed on an outer peripheral surface of the camshaft. A bearing surface of the support wall is formed with an advance groove through which oil for advancing the camshaft is to pass, a retard groove through which oil for retarding the camshaft is to pass, and an accommodation groove configured to accommodate the thrust stopper. At the bearing surface, the retard groove is positioned on one wall surface side of the support wall, the accommodation groove is positioned on the other wall surface side of the support wall, and the advance groove is positioned between the retard groove and the accommodation groove.
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公开(公告)号：US11692503B2
公开(公告)日：2023-07-04
申请号：US17114209
申请日：2020-12-07
CPC分类号： F02F1/24 , F01L1/053 , F01L2001/0476
摘要： Methods and systems are provided for a cylinder head with an exterior wall including a removable camshaft carrier. In one example, a cylinder head includes a camshaft carrier removably couplable to a mount surface of the cylinder head and adapted to form a portion of an exterior wall of the cylinder head while coupled to the mount surface. The camshaft carrier may include a first section removably couplable to the cylinder head and a second section removably couplable to the first section, with the first section and the second section together shaped to receive a camshaft journal.
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3.发明申请公开(公告)号：US20190112950A1
公开(公告)日：2019-04-18
申请号：US16158598
申请日：2018-10-12
CPC分类号： F01L1/08 , F01L1/044 , F01L1/047 , F01L1/053 , F01L13/0005 , F01L2001/0471 , F01L2001/0476 , F01L2013/0052 , F01L2810/02
摘要： The present invention relates to a sliding cam module for a camshaft, which comprises at least one sliding cam with at least one cam segment, comprising at least two cams with cam tracks that are different to one another as well as a closed bearing element, which is arranged on the sliding cam in a rotatable and axially non-displaceable manner for mounting the sliding cam, wherein the bearing element comprises a recipient area to hold at least one section of a locking device to lock the sliding cam in an axial position. Furthermore, the invention relates to a camshaft with at least one corresponding sliding cam module as well as a shaft, on which the sliding cam module is arranged in a rotationally fixed manner and can be moved in an axial direction along a longitudinal axis of the shaft and a cover module, which comprises a cylinder-head cover as well as a closed bearing element, which comprises a recipient area to hold at least one section of a locking device to lock the sliding cam in an axial position.
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公开(公告)号：US20180283230A1
公开(公告)日：2018-10-04
申请号：US15476417
申请日：2017-03-31
发明人： Béla Hofer , Sagar Shinde
CPC分类号： F01L1/053 , F01L9/021 , F01L2001/0476 , F01L2810/02
摘要： A variable valve train module for an engine includes a camshaft including at least one cam and a valve control block. The valve control block is positioned on a cylinder head of the engine. The valve control block includes a first sidewall and a second sidewall and houses valve train components configured to control the timing of at least one valve in the cylinder heads between the first and second sidewalls. The valve control block includes a support block forming the first sidewall and a plurality of integral bearing supports extending inwardly from the first sidewall and supporting the camshaft. The valve control block also includes a reinforcing block forming the second sidewall and which is attached to the support block.
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公开(公告)号：US10006319B2
公开(公告)日：2018-06-26
申请号：US14876887
申请日：2015-10-07
发明人： Joerg Wutzler , Andreas Werler
CPC分类号： F01L1/344 , F01L1/047 , F01L1/053 , F01L2001/0471 , F01L2001/0475 , F01L2001/0476 , F01L2013/0052 , F02F1/24
摘要： A cylinder head of an internal combustion engine includes a camshaft configured to actuate gas-exchange valves of the internal combustion engine. The camshaft has two cam segments that are joined to each other in such a manner that the cam segments cannot rotate with respect to each other, but are moveable axially relative to each other. End faces of the bearing sites of the cam segments each have splines running radially along respective outer circumferential surfaces of the cam segments. A camshaft bearing has an inner bearing ring with splines being formed on an inner surface. The splines of the inner bearing ring completely penetrate the axial course of the inner surface and the splines of the adjacent cam segments intermesh with the splines of the inner bearing ring on both sides thereof such that the inner bearing ring forms a non-rotating connection between the camshaft segments.
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公开(公告)号：US20180163575A1
公开(公告)日：2018-06-14
申请号：US15668498
申请日：2017-08-03
发明人： Kyung Mo KIM
CPC分类号： F01L1/053 , F01L1/08 , F01L1/18 , F01L1/181 , F01L1/267 , F01L1/356 , F01L13/0015 , F01L13/0026 , F01L2001/0473 , F01L2001/0476 , F01L2001/0535 , F01L2013/103 , F01L2105/00 , F01L2820/01
摘要： A continuous variable valve duration system may include a camshaft, a first cam portion including a first cam, of which the camshaft is inserted therein, an internal bracket transmitting rotation of the camshaft to the first cam portion, a control shaft parallel to the camshaft, a slider housing in which the internal bracket is rotatably inserted, on which a control groove where the control shaft is inserted into is formed, and the slider housing movable vertical to the camshaft, a guider configured for guiding movement of the slider housing, a rocker shaft, a first rocker arm rotatably disposed to the rocker shaft of which a first end portion contacts with the first cam and of which a second end portion is connected to a first valve and a control portion selectively rotating the control shaft for changing a position of the slider housing.
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公开(公告)号：US20180149044A1
公开(公告)日：2018-05-31
申请号：US15577467
申请日：2016-06-20
发明人： Yuji NOGUCHI , Takeo ASAHI
IPC分类号： F01L1/344
CPC分类号： F01L1/3442 , F01L1/024 , F01L1/047 , F01L2001/0476 , F01L2001/3443 , F01L2001/34433 , F01L2001/34479 , F01L2001/34483 , F01L2101/00 , F01L2250/04 , F01L2810/02
摘要： A valve opening/closing timing control device includes a driving rotary body rotatable in synchronism with a crankshaft of an internal combustion engine, a driven rotary body rotatable in unison with a cam shaft of the internal combustion engine and rotatable also relative to the driving rotary body within this driving rotary body, a fluid pressure chamber formed by the driving rotary body and the driven rotary body, and a partitioning portion that partitions the fluid pressure chamber into an advance chamber and a retard chamber. The driving rotary body includes an aluminum housing having a pulley that receives a drive force of the crankshaft via a drive belt and a plate attached to at least one face of the housing. Between the housing and the plate, there is provided a gap allowing outflow of fluid.
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公开(公告)号：US20180100443A1
公开(公告)日：2018-04-12
申请号：US15379087
申请日：2016-12-14
发明人： Kyung Mo Kim
CPC分类号： F02D13/0207 , F01L1/053 , F01L1/181 , F01L1/20 , F01L1/26 , F01L1/267 , F01L1/356 , F01L13/0015 , F01L13/0026 , F01L2001/0476 , F01L2001/0535 , F01L2013/103 , F01L2105/00
摘要： A continuous variable valve duration system may include a camshaft, and a first cam portion including a first cam. The camshaft is inserted in the first cam portion. A relative phase angle of the first cam with respect to the camshaft is variable. The system may further include an inner bracket transmitting rotation of the cam shaft to the first cam portion, a slider housing in which the inner bracket is rotatably inserted and movable along a predetermined first direction, a rocker shaft, a first rocker arm rotatably disposed to the rocker shaft of which a first end contacts with the first cam and of which a second end is connected to a first valve, an upper housing connected with the slider housing and relatively movable with respect to the slider housing along a second direction vertical to the first direction and a control portion selectively moving the upper housing.
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公开(公告)号：US20180087644A1
公开(公告)日：2018-03-29
申请号：US15573213
申请日：2016-05-04
发明人： Jürgen MEUSEL
CPC分类号： F16H53/025 , F01L1/047 , F01L2001/0473 , F01L2001/0476 , F16C33/6659 , F16C2202/22
摘要： A camshaft segment may include a camshaft having a shaft element and a cam element, as well as a camshaft bearing for mounting the camshaft at least in a radial or axial direction. The camshaft bearing may have an oil transfer element for transferring an oil medium to the camshaft. The camshaft may have an oil conducting element for receiving and guiding the oil medium. The camshaft bearing may have a reduction element, a material of which has a coefficient of expansion comparable to a coefficient of expansion of a material of the camshaft. In some cases, the reduction element may be a ring or a sleeve.
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公开(公告)号：US20170350324A1
公开(公告)日：2017-12-07
申请号：US15607787
申请日：2017-05-30
发明人： Yukio Konishi
CPC分类号： F02D13/0207 , F01L1/143 , F01L1/181 , F01L13/0005 , F01L2001/0476 , F01L2001/0537 , F01L2001/34433 , F01L2001/34496 , F01L2013/001 , F01L2105/00 , F01L2810/02 , F01M1/04 , F01M11/02 , F02B67/06 , F02B75/22 , F02B2275/18 , F02D13/0219 , F02F1/20
摘要： Provided is a V engine which uses common cylinder heads, and permits favorable arrangement of oil passages so as to accommodate various oil regulating features that are required to operate valve property varying mechanisms. Each end of each cylinder head is formed with a plurality of distribution oil passages opening out at an upper surface of the cylinder head for supplying oil pressure from a main gallery to a valve actuating mechanism. A pair of oil passage connecting members internally defining mutually different connecting oil passages are attached to the upper surfaces of the corresponding end parts of the respective cylinder heads.
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