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    Variable compression ratio connecting rod system with rotary actuator
    2.
    发明授权
    Variable compression ratio connecting rod system with rotary actuator 有权

    公开(公告)号：US10240525B2

    公开(公告)日：2019-03-26

    申请号：US15310115

    申请日：2015-05-04

    Applicant: BorgWarner Inc.

    Inventor： David B. Roth ,  Christopher J. Pluta ,  Paul A. Darsky ,  Daniel Brown

    IPC: F02B75/04 ,  F16C7/06

    Abstract: A variable compression connecting rod system (10) located in an internal combustion engine (12) and a method of assembly can include a connecting rod (28) mountable to a piston pin (26) having a first longitudinal axis at one end and 5 mountable to a crankpin (22) having a second longitudinal axis at a second end portion (36). A hydraulically actuated eccentric rotor (52) rotatable about one of the first and second longitudinal axis. The eccentric rotor (52) including first and second vanes (54a, 54b) for driving the rotor between first and second angular positions in response to fluid pressure acting on the first and second vanes. The eccentric rotor 10 (52) having an eccentric surface area with different radial distances (80, 82) movable into alignment with a longitudinal axis of the connecting rod (28) for varying a longitudinal length of the connecting rod (28) between the first and second longitudinal axis.

    Variable compression ratio piston system
    3.
    发明授权
    Variable compression ratio piston system 有权

    公开(公告)号：US09845738B2

    公开(公告)日：2017-12-19

    申请号：US14653367

    申请日：2013-12-04

    Applicant: BorgWarner Inc.

    Inventor： Christopher J. Pluta

    IPC: F02D15/02 ,  F02B75/04

    CPC classification number: F02D15/02 ,  F02B75/04 ,  F02B75/045

    Abstract: The variable compression ratio piston system for an engine adjusts the compression ratio of the engine piston by way of hydraulic fluid distributed between a pair of chambers formed in a pair of bores receiving control pistons mechanically coupled to the engine piston. A control valve selectively permits flow of hydraulic fluid between the high compression ratio line and the low compression ratio line. A variable force solenoid controlled by an engine control unit preferably controls the position of the control valve. The position of the spool controls whether hydraulic fluid can flow toward the first chamber, toward the second chamber, or not at all. Flow of hydraulic fluid is actuated by alternating forces from inertial and combustion forces on a crankshaft from operation of the engine.

    Planetary gear carrier with compliance
    4.
    发明授权
    Planetary gear carrier with compliance 有权

    公开(公告)号：US10605332B2

    公开(公告)日：2020-03-31

    申请号：US15701884

    申请日：2017-09-12

    Applicant: BorgWarner Inc.

    Inventor： Christopher J. Pluta ,  Michael Marsh

    IPC: F16H1/28 ,  F16H57/08 ,  F01L1/352 ,  F16H57/12

    Abstract: A planetary gear assembly (30) and method of assembly in an electric camshaft phaser (20) with a split ring gear including a drive-side ring gear portion (32) rotatable by an engine crankshaft and an output-side ring gear portion (34) that can be connected to a camshaft (22). A plurality of rotatable planetary gears (36a, 36b, 36c) can be interposed between the split ring gear and the sun gear (28). The output-side ring gear portion (34) can have a different number of teeth than the drive-side ring gear portion (32) by a value corresponding to a multiple of the number of planetary gears (36a, 36b, 36c). A compliant planetary gear carrier (40, 140) can support the plurality of planetary gears (36a, 36b, 36c) allowing variance of a normally equidistant distance between separate spaced rotational axes of at least two of the planetary gears (36a, 36b, 36c) to selectively compensate for mechanical tolerances of the drive-side ring gear portion (32) and the output-side ring gear portion (34) of the split ring gear.

    Engine variable camshaft timing phaser with planetary gear set
    5.
    发明授权
    Engine variable camshaft timing phaser with planetary gear set 有权

    公开(公告)号：US10408096B2

    公开(公告)日：2019-09-10

    申请号：US15804816

    申请日：2017-11-06

    Applicant: BorgWarner Inc.

    Inventor： Christopher J. Pluta ,  Michael W. Marsh

    IPC: F01L1/34 ,  F01L1/352 ,  F16H57/08 ,  F16H35/00 ,  F16H1/28

    Abstract: An engine variable camshaft timing phaser (10) includes a sprocket (12), three ring gears (26, 28, 30), multiple planet gears (24), and a sun gear (22). The sprocket (12) receives rotational drive input from an engine crankshaft. One or more of the three ring gear(s) (26, 28, 30) receives rotational drive input from the sprocket (12) and rotates with the sprocket (12), and the remaining ring gear(s) (26, 28, 30) transmit rotational drive output to an engine camshaft (62). All three of the ring gears (26, 28, 30) engage with the planet gears (24). And the sun gear (22) also engages with the planet gears (24). In operation, relative rotational speeds between the sprocket (12) and the sun gear (22) causes the engine camshaft (62) to advance or retard engine valve opening and closing.

    Engine variable camshaft timing phaser with planetary gear assembly
    7.
    发明授权
    Engine variable camshaft timing phaser with planetary gear assembly 有权

    公开(公告)号：US10557385B2

    公开(公告)日：2020-02-11

    申请号：US15804901

    申请日：2017-11-06

    Applicant: BorgWarner Inc.

    Inventor： Larry A. Pritchard ,  Thomas R. Benner ,  Christopher J. Pluta

    IPC: F01L13/00 ,  F01L1/348 ,  F01L1/047 ,  F01L1/352 ,  F01L1/08 ,  F01L1/34 ,  F01L1/344

    Abstract: 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.

    Electric cam phaser with fixed sun planetary
    8.
    发明授权
    Electric cam phaser with fixed sun planetary 有权

    公开(公告)号：US10107154B2

    公开(公告)日：2018-10-23

    申请号：US15315871

    申请日：2015-05-29

    Applicant: BorgWarner Inc.

    Inventor： Christopher J. Pluta ,  Michael Marsh ,  Michael Grieb

    IPC: F01L1/34 ,  F01L1/352

    Abstract: A cam phaser (30, 130, 230) dynamically adjusts a rotational relationship of a camshaft (32) of an internal combustion engine with respect to an engine crankshaft operably connected with a phaser sprocket (42, 142, 242). The cam phaser (30, 130, 230) can include a planetary gear assembly having a ring gear (34, 134, 234) driven by the phaser sprocket (42, 142, 242), a planetary gear carrier (36, 136, 236) connected to the camshaft (32), a sun gear (38, 138, 238), and at least one rotatable planetary gear (40, 140, 240). The cam phaser (30, 130, 230) can include a sprocket housing (44, 144, 244) connected with the phaser sprocket (42, 142, 242) and operable for connection with the ring gear (34, 134, 234), a cover plate (46, 146, 246) secured to the carrier (36, 136, 236), and a adapter (48) connected between the sun gear (38, 138, 238) and an electric motor (47) for changing an angular position of the sun gear (38, 138, 238) and adjustably varying a cam phase position of the camshaft (32) relative to the crankshaft.

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