公开(公告)号：US09739183B2

公开(公告)日：2017-08-22

申请号：US14941130

申请日：2015-11-13

Applicant: HYUNDAI MOTOR COMPANY

Inventor： You Sang Son ,  Kyoung Pyo Ha ,  Back Sik Kim

IPC: F01L1/34 ,  F01L13/00 ,  F01L1/047 ,  F01L1/26

CPC classification number: F01L13/0015 ,  F01L1/047 ,  F01L1/26 ,  F01L1/267 ,  F01L13/0026 ,  F01L2013/0052 ,  F01L2013/103

Abstract: A continuous variable valve duration system may include a camshaft, a cam portion having a cam is formed thereto. The camshaft is inserted to the cam portion such that a relative phase angle with respect to the camshaft is variable. The camp portion has a cam cap engaging portion, and an inner bracket transmits rotation of the camshaft to the cam portion. A slider housing has the inner bracket rotatably inserted thereto, of which relative position with respect to the camshaft is variable, and of which a control slot is formed. Cam caps rotatably mount the cam cap engaging portion to a cylinder head, and a control portion comprising an eccentric control shaft inserted into the control slot. A worm wheel is connected to the eccentric control shaft, and a worm gear engaged with the worm wheel and a control motor selectively rotates the worm gear so as to change relative position of the slider housing with respect to the camshaft and a cylinder head cover of which a motor mounting portion where the control motor is mounted thereto.

公开(公告)号：US09732643B2

公开(公告)日：2017-08-15

申请号：US15161220

申请日：2016-05-21

Applicant: Zhou Yang

Inventor： Zhou Yang

IPC: F02D9/06 ,  F01L13/06 ,  F01L1/08 ,  F01L1/20 ,  F02D13/02 ,  F02D13/04 ,  F01L1/18 ,  F01L13/00 ,  F01L1/26

CPC classification number: F01L13/065 ,  F01L1/08 ,  F01L1/18 ,  F01L1/181 ,  F01L1/185 ,  F01L1/20 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0026 ,  F01L13/06 ,  F01L2105/00 ,  F01L2800/10 ,  F02D9/06 ,  F02D13/0276 ,  F02D13/04

Abstract: An engine valve actuation mechanism for producing a variable engine valve event includes a cam, a rocker arm, a rocker arm shaft, an eccentric rocker arm bushing, and a bushing actuation device. The eccentric rocker arm bushing is disposed in an axial hole in the rocker arm, the rocker arm shaft being disposed in the eccentric rocker arm bushing with the rocker arm shaft and the eccentric rocker arm bushing having offset axial centerlines. One end of the rocker arm and the cam is connected to form a kinematic pair and the other end of the rocker arm is located above the engine valve with a gap between the cam and the engine valve. The bushing actuation device is placed in the rocker arm and drives the eccentric rocker arm bushing to rotate, and the rotation of the eccentric rocker arm bushing changes the gap to generate the variable engine valve event.

公开(公告)号：US09719410B2

公开(公告)日：2017-08-01

申请号：US14655515

申请日：2013-12-26

Applicant: Doosan Infracore Co., Ltd.

Inventor： Ku Yeon Han

IPC: F02B31/00 ,  F02B31/02 ,  F02M35/108 ,  F02F1/42 ,  F02B31/08 ,  F01L1/26 ,  F02M35/112 ,  F01L3/06 ,  F01L3/00

CPC classification number: F02B31/00 ,  F01L1/265 ,  F01L3/00 ,  F01L3/06 ,  F02B31/082 ,  F02B2031/006 ,  F02F1/4228 ,  F02F1/4235 ,  F02M35/1085 ,  F02M35/112 ,  Y02T10/146

Abstract: One exemplary embodiment of the present disclosure relates to an engine intake port structure. According to the engine intake port structure of the exemplary embodiment of the present disclosure, a chamfer is formed to be offset to either side from an end corner of an intake port. Accordingly, the inflow of a fuel gas is concentrated on a side in which an opening width of the chamfer is wide at the beginning of an opening stage when the intake port is opened/closed by a valve unit, and after the intake port is opened, the opening width is formed to be similar at four sides of the valve unit such that swirls formed in the fuel gas is weakened. That is, complete combustion of the fuel can be anticipated since the length of time during which the fuel gas remains in a combustion chamber is extended.

公开(公告)号：US09631522B2

公开(公告)日：2017-04-25

申请号：US14595735

申请日：2015-01-13

Applicant: Caterpillar Inc.

Inventor： David Andrew Cyborski ,  John Stephen Pipis, Jr.

IPC: F01L1/18 ,  F01L1/26 ,  F01L3/08 ,  F01L3/24 ,  F01M9/10 ,  F01L1/24

CPC classification number: F01L1/26 ,  F01L1/24 ,  F01L1/2411 ,  F01L3/08 ,  F01L3/24 ,  F01M9/106

Abstract: A valve bridge assembly is disclosed for an internal combustion engine. The assembly may have a valve bridge with a center portion, opposing lateral extensions, a bore passing through first and second ends of the center portion, and an internal annular shelf. The assembly may also have a cylindrical housing with a main portion, a tip portion protruding from the second end of the center portion, and a positioning flange resting on the internal annular shelf. The assembly may further have a plunger with a first end having a larger opening and a second end having a smaller opening. The first end may be disposed within the main portion of the cylindrical housing, and the second end may protrude from the first end of the center portion. The assembly may also have a valve assembly disposed within the larger opening of the plunger, and a spring disposed inside the cylindrical housing.

公开(公告)号：US09625050B2

公开(公告)日：2017-04-18

申请号：US14604757

申请日：2015-01-26

Applicant: Zheng Lou

Inventor： Zheng Lou

IPC: F01L9/02 ,  F16K31/122 ,  F01L1/18 ,  F02M47/02 ,  F01L1/08 ,  F01L1/26 ,  F01L1/047 ,  F02D13/02 ,  F02D13/04

CPC classification number: F16K31/1221 ,  F01L1/08 ,  F01L1/181 ,  F01L1/267 ,  F01L9/02 ,  F01L9/025 ,  F01L2001/0476 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2820/03 ,  F02D13/0207 ,  F02D13/04 ,  F02M47/027 ,  F16K31/122

Abstract: An engine valve actuation system comprises a camshaft, with at least one cam; a control shaft one; a control shaft two; and at least one valve actuation unit, each valve actuation unit further comprising: (i) at least one set of an engine valve and an engine-valve return spring; (ii) an lost-motion module, further comprising a collapsible high-pressure chamber, and operably converting the profile of at least one cam and the collapsing motion from the high-pressure chamber to corresponding movement of the at least one engine valve; and (iii) a hydraulic circuit, further comprising a trigger valve one and a trigger valve two, the two trigger valve being controlled respectively by the control shaft one and the control shaft two.

公开(公告)号：US20170081989A1

公开(公告)日：2017-03-23

申请号：US14956013

申请日：2015-12-01

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Kyung Mo KIM ,  Kyoung Pyo HA ,  You Sang SON

IPC: F01L1/26 ,  F01L1/18 ,  F01L1/053

CPC classification number: F01L1/267 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F01L1/181 ,  F01L1/20 ,  F01L1/356 ,  F01L13/0026 ,  F01L2001/0535 ,  F01L2013/103 ,  F01L2820/01

Abstract: A continuous variable valve duration system may include a camshaft, a first cam portion including a first cam, into which the camshaft is inserted and of which a relative phase angle of the first cam with respect to the camshaft is variable, a rocker shaft disposed parallel to the camshaft, a first rocker arm rotatably disposed to the rocker shaft of which a first end contacts with the first cam and a second end is connected to a first valve, an inner bracket to transmit rotation of the camshaft to the first cam portion, a slider housing into which the inner bracket is rotatably inserted, on which a control hole is formed and on which a guide portion is formed for guiding movement of the slider housing, an eccentric shaft inserted into the control hole, and a control portion to selectively rotate the eccentric shaft.

公开(公告)号：US20170081987A1

公开(公告)日：2017-03-23

申请号：US14955211

申请日：2015-12-01

Applicant: Hyundai Motor Company

Inventor： You Sang Son ,  Kyoung Pyo Ha ,  Back Sik Kim ,  Kiyoung Kwon

IPC: F01L1/26 ,  F01L1/46 ,  F01L1/24 ,  F01L1/18 ,  F01L1/047

CPC classification number: F01L1/267 ,  F01L1/047 ,  F01L1/18 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/462 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00 ,  F01L2820/03

Abstract: A continuously variable valve lift apparatus may include a camshaft, a cam portion on which a cam is formed and into which the camshaft is inserted, a slider housing into which the cam portion is rotatably inserted and disposed to be rotatable around a pivot shaft, a control portion configured to selectively rotate the slider housing around the pivot shaft, a rotation deliverer configured to transmit rotation of the camshaft to the cam portion, an output portion rotatable around the pivot shaft and on which a valve shoe is formed, and a valve device configured to be driven by the valve shoe.

公开(公告)号：US09587531B2

公开(公告)日：2017-03-07

申请号：US14957104

申请日：2015-12-02

Applicant: Hyundai Motor Company

Inventor： Myungsik Choi ,  Won Gyu Kim ,  Young Hong Kwak

IPC: F01L1/18 ,  F01L13/00 ,  F01L1/26 ,  F01L1/46

CPC classification number: F01L13/0047 ,  F01L1/18 ,  F01L1/185 ,  F01L1/267 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2001/467 ,  F01L2105/00

Abstract: A variable valve lift apparatus may include: an outer body selectively making a lever motion according to rotation of a cam, a first inner body disposed in the any one inside space of the outer body and adapted, a second inner body disposed in the other one inside space of the outer body, a connecting shaft disposed to penetrate the one end of the outer body, the one end of the first inner body, and the one end of the second inner body and connect the outer body with the first and second inner bodies, a first lost motion spring to return the first inner body relatively rotated with the outer body around the connecting shaft, and a second lost motion spring to return the second inner body relatively rotated with the outer body around the connecting shaft.

Abstract translation: 可变气门提升装置可以包括：根据凸轮的旋转选择性地制作杠杆运动的外体，设置在外体的任何一个内部空间中的第一内体，并且适于设置在另一个中的第二内体 外体的内部空间，设置成穿过外体的一端，第一内体的一端和第二内体的一端的连接轴，并且将外体与第一内侧和第二内侧连接 第一空动弹簧，使第一内体与外体相对地绕连接轴相对地旋转;以及第二空动弹簧，用于使第二内体与外主体围绕连接轴相对旋转。

公开(公告)号：US20170009610A1

公开(公告)日：2017-01-12

申请号：US15198978

申请日：2016-06-30

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Faheem Ahmed ,  Colin Foster ,  David Chandler ,  John Whitton ,  Kate Higdon

IPC: F01L1/24 ,  F01L1/26 ,  F01L1/18

CPC classification number: F01L1/2405 ,  F01L1/18 ,  F01L1/181 ,  F01L1/24 ,  F01L1/2411 ,  F01L1/267 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2001/467

Abstract: A switchable rocker arm for valve deactivation is provided for a valve train of an internal combustion engine. The switchable rocker arm includes a cam lever assembly, a valve lever assembly, and a hydraulically actuated coupling assembly that is radially arranged between the cam lever and valve lever assemblies. The coupling assembly includes a shuttle pin, a locking pin with a round or flat locking interface, and optional shuttle pin and locking pin sleeves. In a first, locked position, the rotational motion of a camshaft is translated to linear motion of an engine valve. In a second, unlocked position, the cam lever assembly rotates about the valve lever assembly, facilitating valve deactivation. A pivot joint arranged between the cam lever and valve lever assemblies facilitates an arcuate lost motion of the cam lever assembly. An integrated arrangement for one or more lost motions springs offers packaging and functional advantages.

Abstract translation: 为内燃机的气门机构提供用于阀停用的可切换摇臂。 可切换摇臂包括凸轮杆组件，阀杆组件以及径向布置在凸轮杆和阀杆组件之间的液压致动联接组件。 联接组件包括梭销，具有圆形或平面锁定接口的锁定销，以及可选的梭销和锁定销套筒。 在第一个锁定位置，凸轮轴的旋转运动被转换为发动机气门的直线运动。 在第二个解锁位置，凸轮杆组件围绕阀杆组件旋转，便于阀门停用。 布置在凸轮杆和阀杆组件之间的枢转接头有助于凸轮杆组件的弓形运动。 一个或多个丢失动作弹簧的集成布置提供了包装和功能优势。

公开(公告)号：US09541010B2

公开(公告)日：2017-01-10

申请号：US13547354

申请日：2012-07-12

Applicant: Manuel Angel Gonzalez Delgado ,  Charles Dean ,  Joseph J. Moon

Inventor： Manuel Angel Gonzalez Delgado ,  Charles Dean ,  Joseph J. Moon

IPC: F02D13/02 ,  F01L1/26 ,  F01L13/00

CPC classification number: F02D13/0273 ,  F01L1/267 ,  F01L13/0036 ,  F01L2800/10 ,  F02M26/01 ,  Y02T10/121 ,  Y02T10/18

Abstract: An engine assembly includes a camshaft having an exhaust cam lobe defining an exhaust lift region and an exhaust base circle region and an EGR cam lobe defining an EGR lift region and an EGR base circle region. The EGR lift region is rotationally offset from the exhaust lift region and the EGR base circle region is rotationally aligned with the exhaust lift region. An exhaust valve lift mechanism is engaged with an exhaust valve, the exhaust cam lobe and the EGR cam lobe and is operable in first and second modes. The exhaust valve remains closed when the EGR lift region engages the exhaust valve lift mechanism during the second mode and the exhaust valve is opened when the EGR lift region engages the exhaust valve lift mechanism during the first mode to provide exhaust gas flow into the combustion chamber during an intake stroke of the combustion chamber.

Abstract translation: 发动机组件包括具有限定排气升高区域和排气基圆区域的排气凸轮凸角的凸轮轴和限定EGR提升区域和EGR基圆区域的EGR凸轮凸角。 EGR提升区域与排气提升区域旋转地偏移，并且EGR基圆区域与排气升高区域旋转地对准。 排气门提升机构与排气门，排气凸轮凸角和EGR凸轮凸角接合，并可在第一和第二模式下操作。 当在第二模式期间EGR提升区域接合排气门提升机构时，排气门保持关闭，并且当EGR提升区域在第一模式期间接合排气门提升机构时排气门打开以提供废气流入燃烧室 在燃烧室的进气冲程期间。