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公开(公告)号：US11008905B2
公开(公告)日：2021-05-18
申请号：US16684068
申请日：2019-11-14
发明人： Myung Sik Choi , You-Seok Back
摘要： A variable valve apparatus includes: a swing body mounted to rotate to open and close a valve; an inner body driven by a cam and mounted in the swing body so as to switch a relatively-rotatable state and a latched state with respect to the swing body; a latching pin slidably mounted in the swing body so as to switch the latched state and the relatively-rotatable state of the inner body with respect to the swing body; and a control mechanism pressing the latching pin to make the inner body be latched to the swing body.
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公开(公告)号：US11008904B2
公开(公告)日：2021-05-18
申请号：US16767150
申请日：2017-11-28
发明人： Xin Li
摘要： The present disclosure relates to a cover element for a camshaft phaser and a camshaft phaser. The cover element includes a journal and a cover plate, the journal is used to form sealing engagement with an oil seal, and the journal and the cover plate are connected by welding. A positioning portion is formed on the surface of the cover plate for positioning the journal. The cover element is formed by welding the cover plate and the journal, which are processed separately, so as to conveniently perform different processing of the cover plate and the journal. A positioning portion for positioning the journal is formed on the surface of the cover plate so as to easily position the journal during the welding process, which enables the journal and the cover plate to be easily welded together without requiring complicated fastening. This improves processing efficiency and reduces production costs.
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公开(公告)号：US11002159B1
公开(公告)日：2021-05-11
申请号：US16811460
申请日：2020-03-06
发明人： Timothy Simon
摘要： A camshaft phaser is provided that includes a stator, a rotor having a plurality of vanes that form fluid chambers with the stator, and a timing wheel attached to the rotor via a spline joint arranged between the rotor and timing wheel. The spline joint is configured to prevent axial and radial movement of the timing wheel relative to the rotor.
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公开(公告)号：US10947870B2
公开(公告)日：2021-03-16
申请号：US16403832
申请日：2019-05-06
摘要： A camshaft phaser arrangement configured for a concentric camshaft assembly having inner and outer camshafts is provided. The camshaft phaser arrangement includes a first camshaft phaser, a second camshaft phaser, and a coupling that non-rotatably connects the first camshaft phaser to the concentric camshaft assembly. Each of the camshaft phasers is configured to be connected to either the inner or the outer camshaft. The coupling accommodates for radial and axial offset between the first camshaft phaser and the second camshaft phaser.
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公开(公告)号：US20210071569A1
公开(公告)日：2021-03-11
申请号：US16966107
申请日：2018-01-31
发明人： Tsuyoshi SUGIMOTO , Takahiro HAMADA
摘要： A fastening structure (105) includes a pair of fastening members (105A) joined to each other, which is coupled with a bolt. The fastening member (105) is made of steel. A surface other than joint surfaces (Sa) has a Rockwell hardness of 50 HRC or more. The joint surfaces (Sa) have a Rockwell hardness of 30 HRC or more and less than 50 HRC. The joint surfaces (Sa) have an arithmetic mean roughness (Ra) of 0.2 μm or more and 0.5 μm or less. Production cost is suppressed, and at the same time, bending fatigue strength is secured and secondary damage due to abrasion powder generated by fretting is prevented.
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公开(公告)号：US20210062690A1
公开(公告)日：2021-03-04
申请号：US16553437
申请日：2019-08-28
摘要： A control system of a vehicle includes: an electric motor configured to phase rotation of an camshaft of an engine relative to rotation of a crankshaft of the engine; a current module configured to, while the engine is off: selectively transition a current signal back and forth between a first state and a second state; and a motor driver module configured to, while the engine is off: apply power to the electric motor from a battery and adjust a position of the camshaft toward a predetermined position when the current signal is in the first state; and disconnect the electric motor from the battery and allow the position of the camshaft to move away from the predetermined position when the current signal is in the second state.
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公开(公告)号：US10883393B2
公开(公告)日：2021-01-05
申请号：US16286378
申请日：2019-02-26
发明人： Martin Wirth , Klemens Grieser , Marco Marceno , Kay Hohenboeken , Jan Linsel , Harald Stoffels , Ludwig Stump
摘要： A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.
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公开(公告)号：US20200318559A1
公开(公告)日：2020-10-08
申请号：US16820763
申请日：2020-03-17
发明人： Shigeki MIYASHITA
摘要： An internal combustion engine system includes an internal combustion engine and a control device. A difference of an intake valve closing timing with respect to a compression top dead center is referred to as a first crank angle difference; a difference of an exhaust valve closing timing with respect to an exhaust top dead center is referred to as a second crank angle difference; and a difference between the first crank angle difference and the second crank angle difference is referred to as an intake/exhaust closing timing difference. The control device is configured to execute: a fuel cut processing; and a valve driving processing to control at least one of the intake valve closing timing and the exhaust valve closing timing such that the intake/exhaust closing timing difference becomes smaller during a fuel cut operation than during a non-fuel cut operation.
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公开(公告)号：US10781725B2
公开(公告)日：2020-09-22
申请号：US16492173
申请日：2017-10-24
摘要： A valve train assembly includes: at least one dual body rocker arm having a first body, a second body, a latching arrangement for latching and unlatching the first body and the second body, the latching arrangement having a latching pin that is biased to an unlatched configuration; and an actuator arrangement for controlling the latching arrangement, the actuator arrangement being able to contact the latching arrangement to cause the latching pin to be moved into a latched configuration in which it latches the first and second bodies together. In use, movement of the rocker arm under action of a cam to cause a valve event moves the actuator arrangement out of contact with the latching arrangement while a contact force between the latching pin and one or other of the first and second bodies maintains the latching pin in the latched configuration.
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公开(公告)号：US10773308B2
公开(公告)日：2020-09-15
申请号：US16475881
申请日：2017-12-22
发明人： Douglas R. O'Hara , James T. Hill
摘要： A rotor for a variable valve timing engine is disclosed in which the opposing planar surface(s) of the rotor have one or more recesses formed therein in order to balance, equilibrate, or equalize the planar surface areas on the opposing surfaces. Among other things, this can improve the accuracy and efficiency with which the rotor is ground during a related method of manufacturing the rotor.
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