公开(公告)号：US20180298836A1

公开(公告)日：2018-10-18

申请号：US15766158

申请日：2016-09-20

Applicant: Continental Automotive GmbH

Inventor： Wolfgang STOWASSER ,  Suk-Ju KIM

IPC: F02D41/04 ,  F01L1/344 ,  F02D41/06

CPC classification number: F02D41/042 ,  F01L1/344 ,  F01L2201/00 ,  F01L2800/01 ,  F01L2800/02 ,  F01L2800/03 ,  F01L2820/032 ,  F02D41/062 ,  F02D41/064 ,  F02D41/065 ,  F02D2041/001 ,  F02D2250/06

Abstract: A method according to the invention for controlling an internal combustion engine having a camshaft whose phase with respect to a crankshaft can be adjusted by means of an electric adjustment device, and a control device comprises the steps S1 to S3, wherein in step S1 a stop request is output from the control device to the electric adjustment device. Subsequently, in step S2 a manipulated variable in the form of a pulse duty factor is output from the electric adjustment device, wherein the pulse duty factor counteracts a camshaft torque. In step S3, the direction of rotation of the camshaft is monitored, wherein in step S4, when a reversal of the direction of rotation of the camshaft is detected, an intensity level of this reversal of the direction of rotation is calculated by determining a rotational speed gradient. Furthermore, in a step S5 the pulse duty factor is corrected as a function of the rotational speed gradient in such a way that the influence of the reversal of the direction of rotation on the position of the camshaft is compensated.

公开(公告)号：US20180274400A1

公开(公告)日：2018-09-27

申请号：US15904330

申请日：2018-02-24

Applicant: ECO Holding 1 GmbH

Inventor： Andreas Heilig Berwinkl ,  Rene Hentsch Heym ,  Markus Todt ,  Stephan Wanner

IPC: F01L1/344 ,  F01L1/047

CPC classification number: F01L1/34413 ,  F01L1/047 ,  F01L1/344 ,  F01L1/3442 ,  F01L1/46 ,  F01L2001/0473 ,  F01L2001/34423 ,  F01L2001/34433 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2103/00 ,  F01L2250/02

Abstract: A cam phaser for a cam shaft arrangement including an inner cam shaft and an outer cam shaft arranged concentrical relative to the inner cam shaft, the cam phaser including at least one rotor; at least one stator; and at least one compensation element configured to compensate axial and/or radial and/or angular tolerances, wherein the stator is connectable torque proof at least indirectly through a drive gear with the outer cam shaft and the rotor is connectable torque proof with the inner cam shaft, wherein the drive gear is separate from the stator and attachable torque proof at the outer cam shaft, wherein the stator is rotatably supportable on the inner cam shaft, wherein plural compensation elements are provided which are arranged evenly distributed in a circumferential direction, wherein the compensation elements are configured torsion stiff in the circumferential direction and attached between the stator and the drive gear.

公开(公告)号：US20180179962A1

公开(公告)日：2018-06-28

申请号：US15389072

申请日：2016-12-22

Applicant: Ford Global Technologies, LLC

Inventor： Eric Matthew Kurtz ,  Brien Lloyd Fulton

IPC: F02D13/02 ,  F01L1/344 ,  F02B37/00 ,  F02D41/40

CPC classification number: F02D13/0249 ,  F01L1/344 ,  F01L2800/00 ,  F02B37/00 ,  F02D35/023 ,  F02D41/024 ,  F02D41/1402 ,  F02D41/1446 ,  F02D41/1461 ,  F02D41/40 ,  F02D2200/024 ,  F02D2200/0802 ,  F02D2250/14 ,  Y02T10/144 ,  Y02T10/18

Abstract: Methods and systems for adjusting exhaust valve timing of an engine are described. In one example, exhaust valve timing of a compression ignition engine is adjusted responsive to a difference between a commanded exhaust valve opening timing and an actual exhaust valve opening timing, the actual exhaust valve opening timing determined from cylinder pressure.

公开(公告)号：US09982573B2

公开(公告)日：2018-05-29

申请号：US15172291

申请日：2016-06-03

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Pascal David ,  Pierre Kimus ,  Sebastien Mafrica

IPC: F01L1/34 ,  F01L1/344

CPC classification number: F01L1/344 ,  F01L1/047 ,  F01L1/3442 ,  F01L2001/3443 ,  F01L2001/34433 ,  F01L2001/3445 ,  F01L2001/34466 ,  F01L2001/34469 ,  F01L2001/34479 ,  F01L2250/04 ,  F01L2820/031

Abstract: A camshaft phaser includes a stator having an inner wall with lobes extending radially inward and a stator flange extending radially outward, the stator flange having a plurality of apertures; a rotor coaxially disposed within the stator, the rotor having vanes interspersed with the lobes defining alternating advance chambers and retard chambers; a plurality of compression limiters extending through the apertures; a front cover which closes one end of the advance and retard chambers; a back cover which closes the other end of the advance and retard chambers; and a plurality of fasteners which extend through the apertures such that the fasteners apply a clamping load which clamps the stator between the front cover and the back cover such that the clamping load is transmitted through the compression limiters.

公开(公告)号：US09957849B2

公开(公告)日：2018-05-01

申请号：US14784363

申请日：2014-02-11

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Christoph Betz

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/047

CPC classification number: F01L1/34 ,  F01L1/047 ,  F01L1/344 ,  F01L2001/34483

Abstract: A camshaft adjuster having a drive element, an output element and a spring, wherein the drive element and the output element can rotate relative to each other, wherein the spring is secured by a spring bearing of the drive element and a spring bearing of the output element, wherein the spring supports the relative rotation between the drive element and the output element, wherein the spring bearing has a radius that is larger than the radius of the spring and, as a result of this ratio of the radii, a two-line contact between the spring and the spring bearing is formed.

公开(公告)号：US20180080538A1

公开(公告)日：2018-03-22

申请号：US15672396

申请日：2017-08-09

Applicant: Miba Sinter Austria GmbH

Inventor： Dietmar GEBHART ,  Thomas KAISER

IPC: F16H55/06 ,  F01L1/344 ,  F16H55/17 ,  B22F5/08

CPC classification number: F16H55/06 ,  B22F5/08 ,  B22F2998/10 ,  F01L1/344 ,  F01L1/3442 ,  F01L2103/00 ,  F01L2820/01 ,  F16H55/17 ,  B22F3/02 ,  B22F3/10

Abstract: A method for producing a stator for a camshaft adjuster, the produced stator having an annular main body with outer spur toothing and with webs extending radially inwards from a radially inner surface of the main body spaced part from one another in the circumferential direction of the main body, includes the steps of providing a mold for forming the main body integrally with the spur toothing and the webs extending radially inwards, filling the mold with a metallic powder, pressing the powder to form a green compact and sintering the green compact to obtain a stator blank. The spur toothing, the surface of the main body facing radially inwards and formed between the webs as well as side faces of the webs adjoining the surface are compacted to the desired final dimensions in several steps without prior mechanical processing.

公开(公告)号：US20180073655A1

公开(公告)日：2018-03-15

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

IPC: F16K31/04 ,  F01L1/344 ,  F01L1/047

CPC classification number: F16K31/043 ,  F01L1/047 ,  F01L1/344 ,  F01L1/352 ,  F01L2250/02 ,  F01L2250/04 ,  F01L2810/04 ,  F01L2820/032 ,  F16K31/048

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.

公开(公告)号：US09903236B2

公开(公告)日：2018-02-27

申请号：US14900734

申请日：2014-06-24

Applicant: THYSSENKRUPP PRESTA TECCENTER AG

Inventor： Michael Kunz ,  Uwe Dietel ,  Jürgen Meusel

IPC: F01L1/344 ,  F01L1/047 ,  F16H53/04

CPC classification number: F01L1/344 ,  F01L1/047 ,  F01L2001/0473 ,  F01L2101/00 ,  F01L2103/00 ,  F16H53/04

Abstract: An adjustable camshaft can be used in a valve drive of an internal combustion engine. The adjustable camshaft may include an inner shaft rotatably supported by and concentric with an outer shaft. A cam element may be rotatably supported on the outer shaft such that the outer shaft extends through a cam bore of the cam element. The cam element may be rotatably-fixed to the inner shaft, in some cases, by way of a bolt. Further, a bearing sleeve that is rotatably-fixed to the cam element may be inserted within the cam bore such that a slide bearing gap is formed between the bearing sleeve and the outer shaft. Furthermore, in some examples the cam element may be a collared cam that has a cam base body and a cam collar adjacent to one another.

公开(公告)号：US09903235B2

公开(公告)日：2018-02-27

申请号：US14834568

申请日：2015-08-25

Applicant: AISIN SEIKI KABUSHIKI KAISHA

Inventor： Hiroki Mukaide ,  Naoto Toma ,  Yoshiaki Yamakawa ,  Masaki Kobayashi ,  Takeshi Hayashi ,  Hiroyuki Amano

IPC: F01L1/344 ,  F01L1/24

CPC classification number: F01L1/344 ,  F01L1/24 ,  F01L1/3442 ,  F01L2001/3443 ,  F01L2001/34433 ,  F01L2001/34446 ,  F01L2001/34463 ,  F01L2001/34473 ,  F01L2001/34476 ,  F01L2001/34479 ,  F01L2001/34483 ,  F01L2250/02 ,  F01L2800/01

Abstract: A valve timing control apparatus includes: a drive-side rotational member synchronously rotating with a drive shaft of an internal combustion engine; a driven-side rotational member disposed inside the drive-side rotational member and integrally rotating with a valve opening/closing camshaft; a hydrostatic pressure chamber formed by partitioning a space between the drive-side rotational and driven-side rotational members; an advance angle chamber and a retardation angle chamber formed by dividing the hydrostatic pressure chamber; an intermediate lock mechanism able to selectively switch between locked and unlocked states; an advance angle flow path allowing the hydraulic fluid to be circulated; a retardation angle flow path allowing the hydraulic fluid to be circulated; a control valve having a spool; and a phase control unit controlling the control valve.

公开(公告)号：US09879793B2

公开(公告)日：2018-01-30

申请号：US14402521

申请日：2013-03-08

Applicant: Schaeffler Technologies GmbH & Co. KG

Inventor： Ali Bayrakdar

IPC: F16K11/07 ,  F16K15/18 ,  F01L1/344

CPC classification number: F16K15/183 ,  F01L1/344 ,  F01L1/3442 ,  F01L2001/34426 ,  Y10T137/88054

Abstract: A control valve (4) for controlling pressure medium flows of a camshaft adjuster which includes a substantially hollow cylindrical valve housing (6), a control piston (12), which is guided axially displaceably inside the valve housing (6), and a non-return valve (22) which can be hydraulically released. In a region of a pressure medium inlet, the valve housing (6) includes a housing shaft (28) with an axial inflow bore (30) which widens in funnel-like manner towards the inlet side.