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公开(公告)号：US11230950B1
公开(公告)日：2022-01-25
申请号：US17155612
申请日：2021-01-22
Applicant: BorgWarner Inc.
Inventor： Chad McCloy , Mark Wigsten
Abstract: An electrically-actuated variable camshaft timing (VCT) phaser is employed for use with an internal combustion engine (ICE). The electrically-actuated VCT phaser includes a gear set assembly and a fixture. The gear set assembly has an input gear and an output gear, among other possible components. The input gear receives rotational drive input from an engine crankshaft, and the output gear transmits rotational drive output to an engine camshaft. The fixture is secured in the gear set assembly. Amid installation of the electrically-actuated VCT phaser on the ICE, the fixture constrains rotational movement of the gear set assembly. After installation, the fixture can be removed from the gear set assembly.
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公开(公告)号：US11092046B2
公开(公告)日：2021-08-17
申请号：US16979008
申请日：2018-03-30
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Atsuyoshi Nakayama , Masayuki Yokoyama
Abstract: A first rotator (6) includes an internal gear (14) and rotates in conjunction with a crankshaft (4). A second rotator (12) includes an output gear (121) and rotates in conjunction with a camshaft (3). A planetary rotator (13) includes a planetary gear (131) that meshes with the internal gear (14) and the output gear (121), and the planetary gear (131) meshes with the internal gear (14) and the output gear (121) to perform planetary motion, thereby changing the relative rotational position between the first rotator (6) and the second rotator (12). An input shaft (16) causes the planetary rotator (13) to perform planetary motion. A first bearing (18) is interposed between the input shaft (16) and the first rotator (6). A planetary bearing (17) is interposed between the input shaft (16) and the planetary rotator (13), and is included on the same plane orthogonal to the rotation axis (O) as the first bearing (18).
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公开(公告)号：US11002353B2
公开(公告)日：2021-05-11
申请号：US16138701
申请日：2018-09-21
Applicant: SHENZHEN LLMACHINECO., LTD
Inventor： Jun Tan , Xianhong Cao
Abstract: A cycloidal pin wheel harmonic transmission device includes camshaft, flexible bearing, flexible wheel, roller pins and rigid wheel. The flexible bearing is mounted on the camshaft with elliptical shape. The flexible wheel has inner ring cooperated with outer ring of the flexible bearing, and outer teeth surface contacted with each roller pin. The roller pins are evenly disposed inside semicircular groove of the rigid wheel. The flexible wheel is fixedly connected with inner ring and the rigid wheel is fixedly connected with outer ring of the main bearing. Both teeth height and root have cycloidal teeth profiles reduces the risk of breakage failure, possible to obtain larger engagement without deep engaging distance. Teeth width is large, used for the engagement, the surface specific pressure is small. It is possible to withstand large torque to reduce the amount of deformation of the flexible wheel, and to greatly improve the longevity.
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公开(公告)号：US20210115819A1
公开(公告)日：2021-04-22
申请号：US17047827
申请日：2018-05-03
Applicant: BorgWarner, Inc.
Inventor： Shawn Blackmur
Abstract: An electrically-actuated camshaft phaser used in an internal combustion engine including a camshaft sprocket, configured to receive rotational input from a crankshaft, that includes a sprocket ring gear having a plurality of radially-inwardly facing gear teeth and a radially extending sprocket side; a camshaft plate that includes a camshaft ring gear having a plurality of radially-inwardly facing gear teeth and a radially extending camshaft side; a plurality of planetary gears having radially-outwardly facing gear teeth, each gear with a first radial gear face and a second radial gear face, wherein the planetary gears engage the sprocket ring gear, the camshaft ring gear, or both the sprocket ring gear and the camshaft ring gear; and one or more fluid escapement channels formed in at least one of the camshaft sprocket, the camshaft plate, the first radial gear face, or the second radial gear face.
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公开(公告)号：US10815842B2
公开(公告)日：2020-10-27
申请号：US16227328
申请日：2018-12-20
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Steven Burke , Dan Zehan
Abstract: 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 that is configured to be non-rotatably connected to both the inner and outer camshafts, and a second camshaft phaser that is configured to be non-rotatably connected to one of the inner or outer camshafts.
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Patent Agency Ranking
公开(公告)号：US10655509B2
公开(公告)日：2020-05-19
申请号：US16275846
申请日：2019-02-14
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Hiroki Mukaide
Abstract: A variable valve timing control device includes a connection mechanism provided with a coupling member which connects a driving-side rotation member and an input gear with each other, the connection mechanism including a first engagement portion and a second engagement portion, the first engagement portion engaged with the driving-side rotation member so as to be relatively displaceable therewith in a first radial direction, the second engagement portion engaged with the input gear so as to be relatively displaceable therewith in a second radial direction which is orthogonal to the first radial direction, and a biasing member restricting a coupling member from being displaced.
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公开(公告)号：US20190292951A1
公开(公告)日：2019-09-26
申请号：US16152720
申请日：2018-10-05
Applicant: Akeel Ali Wannas
Inventor： Akeel Ali Wannas
Abstract: The present disclosure employs a pair of camshafts for intake valves. A first phase controller is installed at a first end of the first intake camshaft connecting to the crankshaft. A second phase controller is installed at a second end of the first intake camshaft connecting to the second intake camshaft. Each phase controller can adjust phase angle accordingly to modify intake valve timing and intake valve lift. This set up is duplicated for the exhaust valves to modulate exhaust valve timing and exhaust valve lift. First and second camshafts are connected via a series of levers, which merges the rotations of both camshafts into one. The phase controllers can be differential gear sets, epicyclical gear sets, or a combination thereof.
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公开(公告)号：US20190277168A1
公开(公告)日：2019-09-12
申请号：US16275846
申请日：2019-02-14
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Hiroki MUKAIDE
Abstract: A variable valve timing control device includes a connection mechanism provided with a coupling member which connects a driving-side rotation member and an input gear with each other, the connection mechanism including a first engagement portion and a second engagement portion, the first engagement portion engaged with the driving-side rotation member so as to be relatively displaceable therewith in a first radial direction, the second engagement portion engaged with the input gear so as to be relatively displaceable therewith in a second radial direction which is orthogonal to the first radial direction, and a biasing member restricting a coupling member from being displaced.
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公开(公告)号：US20190264646A1
公开(公告)日：2019-08-29
申请号：US16175443
申请日：2018-10-30
Applicant: Boris Zivkovich
Inventor： Boris Zivkovich
Abstract: An improved internal combustion engine utilizes at least one orbital pin eccentrically offset from an orbital shaft, rotationally linked to the main shaft via an epicyclic gear set, such that the piston and connecting rod, influenced by the force from thermodynamic process, transfers a straight linear force to the orbital epicyclic pin further via the flying crank arm to the main shaft. This results in an extended but mechanically adjustable constant volume combustion period up to 60° with improved piston to crank relationship throughout main conversion angle. The extended dwell duration and new piston to crank relationship at TDC and BDC improve the engine operation as well as its scavenging efficiency and cleanliness.
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公开(公告)号：US10385985B2
公开(公告)日：2019-08-20
申请号：US15704298
申请日：2017-09-14
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Eiji Miyachi , Hiroki Mukaide , Tomoharu Otake , Yoshiaki Iguchi , Shigemitsu Suzuki
Abstract: A valve opening and closing timing control apparatus includes: a driving side rotator disposed rotatably about a rotation axis and configured to rotate synchronously with a crankshaft; a driven side rotator disposed rotatably about the rotation axis and configured to be rotatable relative to the driving side rotator and to rotate integrally with a valve opening/closing camshaft; a phase adjustment mechanism configured to set a relative rotation phase between the driving side and driven side rotators by a driving force of an electric actuator, a biasing member provided on an outer periphery of a drive shaft to apply a biasing force in a direction such that an inner gear is engaged with a ring gear; and a displacement regulation portion configured to regulate a displacement of the inner gear.
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