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公开(公告)号：US10132203B2
公开(公告)日：2018-11-20
申请号：US15440248
申请日：2017-02-23
Applicant: HONDA MOTOR CO., LTD.
Inventor： Nozomi Okada
Abstract: An internal combustion engine optimizing small-size arrangement of the valve drive mechanism, considering that the exhaust valve diameter is smaller than the intake valve diameter.Intake and exhaust valves are in a radial arrangement, intake and exhaust cam surfaces are inclined relative to intake and exhaust cam axes, intake and exhaust rocker arm support members are inclined correspondingly in the same way and disposed between an intake camshaft and an exhaust camshaft. Pivotal support base portions of intake rocker arms and pivotal support base portions of exhaust rocker arms are disposed such that the distances thereof from a joining surface joining a cylinder head and a cylinder body are different.
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公开(公告)号：US20180320561A1
公开(公告)日：2018-11-08
申请号：US15773078
申请日：2016-09-15
Applicant: Daimler AG
Inventor： Thomas STOLK , Alexander VON GAISBRG-HELFENBERG
Abstract: A valve train device, in particular for an internal combustion engine, includes a support element and a cam element which can be moved axially relative to the support element. The valve train device further includes a switch unit for axially moving the cam element, which switch unit includes a displacer that is intended to be at least operatively inserted between the support element and the cam element in order to axially move the cam element.
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公开(公告)号：US10119430B2
公开(公告)日：2018-11-06
申请号：US15140996
申请日：2016-04-28
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Junker , Norbert Geyer
Abstract: A transmission element in the form of a rocker arm (1) or swinging arm for a reciprocating piston internal combustion engine is provided that can be actuated on one side by a cam of a camshaft and on the other side is in active connection with at least one gas exchange valve directly or via an intermediate arrangement of a valve bridge. The transmission element has a hydraulic valve lash compensation element, also called “HVA”, and the hydraulic valve lash compensation element is arranged at a force transmission end of and attached to the transmission element.
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公开(公告)号：US10119427B1
公开(公告)日：2018-11-06
申请号：US14608092
申请日：2015-01-28
Applicant: Daniel J. Svegliato
Inventor： Daniel J. Svegliato
Abstract: An overhead camshaft valvetrain system for use with components of an existing engine, such as a stock block, an intake manifold and an exhaust manifold. The overhead camshaft valvetrain system can be used to convert an existing engine having a cam-in-block design to an overhead camshaft design. The overhead camshaft valvetrain system can include a transmission system, a cylinder head having an overhead camshaft and overhead valves, and an oiling system.
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公开(公告)号：US20180274478A1
公开(公告)日：2018-09-27
申请号：US15896246
申请日：2018-02-14
Applicant: HONDA MOTOR CO., LTD.
Inventor： Takeya Harada , Kiyohiko Masago , Masaru Kawano , Naoya Ashita , Kei Ueda , Koji Katsumata , Koichi Ogino , Hitoshi Ouchi
CPC classification number: F02F1/4214 , F01L1/026 , F01L1/047 , F01L1/053 , F01L1/182 , F01L1/185 , F01L1/2405 , F01L1/267 , F01L13/0021 , F01L13/0036 , F01L2001/0476 , F01L2001/0537 , F01L2001/054 , F01L2105/00 , F01L2810/04
Abstract: A valve operating system for a multicylinder engine opens and closes a pair of valves provided on each of cylinders by means of a pair of rocker arms operated by a cam provided on a camshaft supported on a cam holder. When viewed in a direction of a cylinder axis, the pair of rocker aims of at least one of the cylinders are inclined in opposite directions to each other with respect to a direction orthogonal to a camshaft axis. Therefore, thrust loads acting on the camshaft from the pair of rocker al is are counteracted individually for each of the cylinders, thereby enabling the thrust load to be reduced and axial movement of the camshaft to be prevented.
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Patent Agency Ranking
公开(公告)号：US10001035B2
公开(公告)日：2018-06-19
申请号：US15545933
申请日：2017-03-14
Applicant: CUMMINS INC.
Inventor： Adam C. Cecil , David M. Barnes
CPC classification number: F01L1/24 , F01L1/181 , F01L1/2405 , F01L1/2416 , F01L1/26 , F01L1/267 , F01L1/46 , F01L2103/00 , F01L2105/00 , F01L2107/00 , F01L2820/01
Abstract: An eccentric hydraulic lash adjuster, a combustion engine comprising the eccentric hydraulic lash adjuster, and a method of assembling the combustion engine, the combustion engine including a rocker lever having a nose at a distal end thereof, and a bridge bar extending between two valves, the rocker lever configured to apply pressure on the bridge bar to actuate the two valves, and an eccentric hydraulic lash adjuster positioned in the nose of the rocker lever; and a fuel injector adjacent to the nose of the rocker lever and the bridge bar, wherein the eccentric hydraulic lash adjuster includes a housing having a pivot point and a longitudinal axis offset from the pivot point and is configured to pivot about the pivot point when the rocker lever pivots about the rocket lever shaft, wherein the offset is dimensioned to prevent interference between the nose and the fuel injector.
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公开(公告)号：US20180163578A1
公开(公告)日：2018-06-14
申请号：US15661485
申请日：2017-07-27
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Kyung Mo KIM , Seock Joong YOON
CPC classification number: F01L1/267 , F01L1/047 , F01L1/053 , F01L1/08 , F01L1/181 , F01L1/182 , F01L1/20 , F01L1/2411 , F01L13/065 , F01L2001/2444 , F01L2101/00 , F01L2105/00 , F01L2800/06 , F01L2800/10
Abstract: A variable valve lift apparatus include a cam rotating together with a camshaft, a lever body being rolling-contacted to one end portion of the cam, and making a lever motion by receiving torque of the cam, two valves operating depending on a lever motion of the lever body, a valve gap control device being disposed at the other end portion of the lever body to simultaneously push the two valves by a main lift and controlling a gap of the valve, and an operation portion operated to selectively push a variable valve which is one among the two valves by a sub lift and disposed at the other end portion of the lever body.
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公开(公告)号：US09932864B2
公开(公告)日：2018-04-03
申请号：US15150733
申请日：2016-05-10
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Junker , Norbert Geyer , Steffen Gumbrecht
CPC classification number: F01L1/181 , F01L1/053 , F01L1/24 , F01L1/2411 , F01L1/26 , F01L1/267 , F01M9/105
Abstract: A valve train for a reciprocating piston internal combustion engine with a transmission element in the form of a rocker arm (1) or pivot arm that can be actuated, on one hand, at least indirectly by a cam of a camshaft and is in active connection, on the other hand, through an intermediate connection of a valve bridge (4), with gas-exchange valves (7, 8). The valve bridge (4) has hydraulic valve lash compensation elements (“HVAs”) allocated to each gas-exchange valve (7, 8).
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公开(公告)号：US09903323B2
公开(公告)日：2018-02-27
申请号：US14991471
申请日：2016-01-08
Applicant: DENSO International America, Inc.
Inventor： Michael Bima
IPC: F02B33/44 , F02B23/00 , F01L3/00 , F01L3/02 , F02M35/10 , F02B33/40 , B01D53/22 , F01L3/20 , F01L1/26 , F02M35/108 , F02B17/00 , F02B37/00 , F02M25/12
CPC classification number: F02M35/10242 , B01D53/22 , B01D2053/223 , B01D2256/12 , B01D2257/102 , F01L1/26 , F01L1/265 , F01L3/20 , F02B17/005 , F02B33/40 , F02B33/44 , F02B37/00 , F02M25/12 , F02M35/10019 , F02M35/10157 , F02M35/1085 , Y02T10/121 , Y02T10/144
Abstract: A system for an internal combustion engine can include a separation device and an engine component including first and second valves. The separation device can separate intake air into a volume of nitrogen-rich air and a volume of oxygen-rich air. A first valve element can be movable relative to a first valve body and can have an annular shape disposed about a central axis of the combustion chamber. The first valve body can be fluidly coupled to the separation device and direct the oxygen-rich air into a central area of the combustion chamber. A second valve element can be movable relative to a second valve body and can have an annular shape disposed about the central axis, radially outward of the first valve. The second valve body can be fluidly coupled to the separation device and can direct the nitrogen-rich air to a peripheral area of the combustion chamber.
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公开(公告)号：US09879571B2
公开(公告)日：2018-01-30
申请号：US15030150
申请日：2014-10-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shuichi Ezaki , Hidetoshi Hirose
CPC classification number: F01L1/185 , F01L1/053 , F01L1/18 , F01L1/2405 , F01L1/255 , F01L1/267 , F01L1/34416 , F01L13/0005 , F01L13/0036 , F01L13/0057 , F01L2001/0473 , F01L2810/04
Abstract: A valve mechanism includes: a support shaft immovably fixed to a main body of an internal combustion engine, a main arm swingably supported by the support shaft; two sub-arms arranged at both sides of the main arm; a coupling support portion swingably supporting and coupling the two sub-arms to the main arm; a cam; and a roller rotatably located in the main arm. Each of the two sub-arms includes: a drive unit pressing and driving a valve; and a contact portion contacting a plunger of a lash adjuster, the contact portion has a curved surface slidably contacting a flat surface formed in a tip portion of the plunger and having an arc-like curved surface shape of which a central axis line corresponds to a central swing axis line of the main arm in a state where the cam abuts on the roller in a base circular portion of the cam.
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