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公开(公告)号:US20170241333A1
公开(公告)日:2017-08-24
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
CPC classification number: F02B75/045 , F02B75/04 , F02B75/048 , 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.
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公开(公告)号:US20190010837A1
公开(公告)日:2019-01-10
申请号:US15804901
申请日:2017-11-06
Applicant: BorgWarner Inc.
Inventor: Larry A. PRITCHARD , Thomas R. BENNER , Christopher J. PLUTA
IPC: F01L1/348
CPC classification number: F01L1/348 , F01L1/047 , F01L1/08 , F01L1/34 , F01L1/34403 , F01L1/34409 , F01L1/34413 , F01L1/3442 , F01L1/352 , F01L2001/34453 , F01L2001/34459 , F01L2013/103 , F01L2250/02 , F01L2250/04 , F01L2820/01 , F01L2820/032
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.
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公开(公告)号:US20170145873A1
公开(公告)日:2017-05-25
申请号:US15315871
申请日:2015-05-29
Applicant: BorgWarner Inc.
Inventor: Christopher J. PLUTA , Michael MARSH , Michael GRIEB
IPC: F01L1/352
CPC classification number: F01L1/352 , F01L2001/3522
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) 236 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
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公开(公告)号:US20180073598A1
公开(公告)日:2018-03-15
申请号:US15701884
申请日:2017-09-12
Applicant: BorgWarner Inc.
Inventor: Christopher J. PLUTA , Michael MARSH
CPC classification number: F16H1/2863 , F01L1/352 , F01L2810/04 , F01L2820/032 , F16H57/082 , F16H57/12 , F16H2057/125 , F16H2057/127
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.
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公开(公告)号:US20170254235A1
公开(公告)日:2017-09-07
申请号:US15511667
申请日:2015-09-10
Applicant: BorgWarner Inc.
Inventor: Christopher J. PLUTA , Michael W. MARSH
CPC classification number: F01L1/352 , F01L2250/02 , F01L2250/04 , F01L2250/06 , F01L2820/032 , F16H1/28 , F16H35/008 , F16H57/082 , F16H2001/2872
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.
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公开(公告)号:US20180320564A1
公开(公告)日:2018-11-08
申请号:US15804816
申请日:2017-11-06
Applicant: BorgWarner Inc.
Inventor: Christopher J. PLUTA , Michael W. MARSH
CPC classification number: F01L1/352 , F01L2250/02 , F01L2250/04 , F01L2250/06 , F01L2820/032 , F16H1/28 , F16H35/008 , F16H57/082 , F16H2001/2872
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.
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公开(公告)号:US20170248045A1
公开(公告)日:2017-08-31
申请号:US15507526
申请日:2015-08-24
Applicant: BorgWarner Inc.
Inventor: Larry A. PRITCHARD , Thomas R. BENNER , Christopher J. PLUTA
CPC classification number: F01L1/348 , F01L1/047 , F01L1/08 , F01L1/34 , F01L1/34403 , F01L1/34409 , F01L1/34413 , F01L1/3442 , F01L1/352 , F01L2001/34459 , F01L2250/02 , F01L2250/04 , F01L2820/01 , F01L2820/032
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.
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公开(公告)号:US20150300272A1
公开(公告)日:2015-10-22
申请号:US14653367
申请日:2013-12-04
Applicant: BORGWARNER INC.
Inventor: Christopher J. PLUTA
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.
Abstract translation: 用于发动机的可变压缩比活塞系统通过分配在形成在一对孔中的液压流体来调节发动机活塞的压缩比,所述一对腔室形成在机械联接到发动机活塞的控制活塞的一对孔中。 控制阀选择性地允许液压流体在高压缩比线和低压缩比线之间流动。 由发动机控制单元控制的可变力电磁阀优选地控制控制阀的位置。 卷轴的位置控制液压流体是否能够朝向第二室流动,或者根本不流动。 液压流体的流动由来自发动机运转的曲轴上的惯性和燃烧力的交变力致动。
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