公开(公告)号：US12031462B2

公开(公告)日：2024-07-09

申请号：US18211890

申请日：2023-06-20

Applicant: Pacbrake Company

Inventor： Kody Taylor ,  Peter Stec

IPC: F01L13/06 ,  F01L1/18 ,  F01L1/24 ,  F01L1/26 ,  F01L1/46

CPC classification number: F01L13/06 ,  F01L1/181 ,  F01L1/2411 ,  F01L1/267 ,  F01L1/46 ,  F01L13/065

Abstract: An exhaust rocker assembly for operating an exhaust valve of an engine during a compression-release engine braking operation. The exhaust rocker assembly comprises an exhaust rocker arm and a self-contained compression brake control module (CBCM) mounted to the exhaust rocker arm and operatively coupled to the exhaust valve for controlling a lift and a phase angle thereof. The CBCM includes a casing, an actuation piston disposed outside the casing so as to define an actuation piston cavity, a reset check valve provided between the casing and the actuation piston, and a compression brake actuator disposed in the casing. The actuation piston reciprocates relative to the casing. The compression brake actuator includes a control piston. The control piston engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.

公开(公告)号：US12000314B1

公开(公告)日：2024-06-04

申请号：US18462464

申请日：2023-09-07

Applicant: Jay Tran

Inventor： Jay Tran

IPC: F01L1/344 ,  F01L1/46 ,  F01L1/02 ,  F01L1/047 ,  F01L13/00

CPC classification number: F01L1/34406 ,  F01L1/3442 ,  F01L1/46 ,  F01L1/022 ,  F01L1/047 ,  F01L2001/34423 ,  F01L2001/3443 ,  F01L2001/34456 ,  F01L2001/34473 ,  F01L2001/34483 ,  F01L2013/105

Abstract: A variable valve timing assembly for a combustion engine comprises: a phaser configured to receive therein a camshaft; wherein the phaser includes a phaser exterior body that is cylindrical-shaped, a phaser interior body that is cylindrical-shaped and within the phaser exterior body, a phaser exterior spline on an exterior of the phaser exterior body, and a phaser interior spline on an exterior of the phaser interior body; a phaser inner housing disposed within the phaser and configured to receive therein the camshaft; wherein the phaser inner housing includes an inner housing interior spline that mates with the phaser interior spline; an advancing chamber configured to receive fluid from and discharge fluid to the camshaft; a retarding chamber configured to receive fluid from and discharge fluid to the camshaft; and a main housing that encloses therein the phaser and the phaser inner housing, and is configured to engage a timing chain/belt.

公开(公告)号：US20240151167A1

公开(公告)日：2024-05-09

申请号：US18417746

申请日：2024-01-19

Applicant: Eaton Intelligent Power Limited

Inventor： Manickavasagan Thirumoolan ,  Chinmaya Chetan

IPC: F01L13/00 ,  F01L1/18 ,  F01L1/46

CPC classification number: F01L13/0015 ,  F01L1/181 ,  F01L1/46 ,  F01L2001/186 ,  F01L2001/467

Abstract: A rocker arm assembly can comprise a main rocker, an auxiliary rocker, and a lost motion spring mounted to press on the main rocker and the auxiliary rocker. The main rocker can comprise a main body surrounding a main rocker bore, a valve end, a main cam end, and a main latch bore between the valve end and the main cam end. The auxiliary rocker can comprise an auxiliary body that is forked. A first auxiliary rocker bore and a second auxiliary rocker bore can flank the main rocker bore. A first auxiliary cam end and a second auxiliary cam end can flank the main cam end. A first auxiliary latch bore and a second auxiliary latch bore can flank the main latch bore. The lost motion spring can span over the main latch bore.

公开(公告)号：US11970958B1

公开(公告)日：2024-04-30

申请号：US18064779

申请日：2022-12-12

Applicant: BorgWarner, Inc.

Inventor： Kevin B Todd

IPC: F01L1/46 ,  F01L1/02 ,  F01L1/053 ,  F16H7/02 ,  F16H7/06 ,  F16H57/00

CPC classification number: F01L1/46 ,  F01L1/022 ,  F01L1/024 ,  F01L1/053 ,  F16H7/02 ,  F16H7/06 ,  F16H57/0006 ,  F01L2001/0535 ,  F01L2250/02 ,  F01L2250/04

Abstract: Reducing engagement noise in a chain drive or belt drive for an internal combustion engine having a crankshaft having a driving sprocket and at least one shaft having a first driven sprocket and a second driven sprocket, where the driving sprocket and at least one of the first driven sprocket and the second driven sprocket contain a pattern of pitch radii such that the radial variation of the pitch radii excite tensions at non-prevalent orders in a drive system of the internal combustion engine. The non-prevalent engine cycle orders excited by each of the driving sprocket, the first driven sprocket and the second driven sprocket are different.

公开(公告)号：US11905862B2

公开(公告)日：2024-02-20

申请号：US18016113

申请日：2021-07-22

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Juergen Weber ,  Rainer Ottersbach ,  Resat Aras

IPC: F01L1/352 ,  F01L1/46 ,  F01L13/00

CPC classification number: F01L1/352 ,  F01L1/46 ,  F01L2001/3521 ,  F01L2013/103 ,  F01L2820/032

Abstract: The invention relates to a gear device for a motor vehicle, as is used, for example, for adjusting a camshaft in a combustion engine in order to influence the phase angle between crankshaft and camshaft. Such gear devices have to be constructed compactly and also have to have high resistance to wear, in particular upon reaching end stops during adjustment of the phase angle. For this purpose, the gear device has hydraulic end stop damping by the drive unit and the output unit having communicating cavities.

公开(公告)号：US20230160324A1

公开(公告)日：2023-05-25

申请号：US18064497

申请日：2022-12-12

Applicant: Eaton Intelligent Power Limited

Inventor： Majo Cecur ,  Andrei Radulescu ,  Michael J. Campbell ,  Mark Van Wingerden

IPC: F01L13/06 ,  F01L1/46 ,  F01L13/00 ,  F01L1/26

CPC classification number: F01L13/06 ,  F01L1/46 ,  F01L13/0005 ,  F01L1/267 ,  F01L1/2405

Abstract: A type II valve train assembly that selectively opens first and second intake valves and first and second exhaust valves is provided. The valve train assembly includes an intake rocker arm assembly and an exhaust rocker arm assembly. The valve train assembly is configurable for operation in any combination of activated and deactivated states of engine braking and cylinder deactivation. The exhaust rocker arm assembly includes a first exhaust rocker arm, a second exhaust rocker arm and an engine brake exhaust rocker arm. A first exhaust HLA is associated with the first exhaust rocker arm. A second exhaust HLA is associated with the second exhaust valve. An exhaust actuation assembly selectively actuates to alter travel of the first and second exhaust HLA's to change a state of cylinder deactivation between activated and deactivated.

公开(公告)号：US20190072011A1

公开(公告)日：2019-03-07

申请号：US15766836

申请日：2016-10-07

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Majo CECUR ,  Lubos TOMISKA

IPC: F01L13/00 ,  F01L1/08 ,  F01L1/18 ,  F01L1/053 ,  F01L1/46

CPC classification number: F01L13/0036 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F01L1/185 ,  F01L1/46 ,  F01L13/00 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2013/105 ,  F01L2101/00 ,  F01L2800/10

Abstract: An actuator for actuating valve-lift modes of a valve train assembly of an internal combustion engine, The valve train assembly is capable of being switched between a first valve-lift mode and a second valve-lift mode. The actuator includes a first body and a second body, The second body is mounted for reciprocal movement with respect to the first body between a first position to cause the first valve-lift mode and a second position to cause the second valve-lift mode. The actuator includes a third body supported by the second body, the third body for moving a first component of the valve train assembly to cause the second valve-lift mode, The third body is moveable relative to the second body. The actuator includes a first biaser for biasing the third body away from the second body towards the first component of the valve train assembly.

公开(公告)号：US10060304B2

公开(公告)日：2018-08-28

申请号：US15313032

申请日：2015-04-22

Applicant: ThyssenKrupp Presta TecCenter AG

Inventor： Juergen Meusel ,  Michael Kunz

IPC: F01L1/047 ,  F01L1/344 ,  F01L1/04 ,  F01L1/46 ,  F01L1/02

CPC classification number: F01L1/34413 ,  F01L1/04 ,  F01L1/047 ,  F01L1/46 ,  F01L2001/028 ,  F01L2001/0473 ,  F01L2001/0475

Abstract: A valve control system may include an adjustable camshaft that includes an outer shaft and an inner shaft that extends through the outer shaft. The valve control system may further include a phase shifter that comprises a first control element and a second control element that can be rotated relative to the first control element. The outer shaft and the inner shaft may each be connected with a control element. The valve control system may also include a stop coupled with the outer shaft in a torque-proof manner, as well as a counter-stop coupled with the inner shaft in a torque-proof manner. A maximal angle of rotation of the inner shaft in the outer shaft may be determined by the stop bordering on the counter-stop.

公开(公告)号：US20180230864A1

公开(公告)日：2018-08-16

申请号：US15429219

申请日：2017-02-10

Applicant: GM Global Technology Operations LLC

Inventor： Christopher E. Whitney ,  David N. Hayden ,  Nicola Pisu ,  Stephen P. Levijoki

IPC: F01L1/344 ,  F01L1/047 ,  F02D41/02 ,  F02D41/04

CPC classification number: F01L1/344 ,  F01L1/047 ,  F01L1/34 ,  F01L1/46 ,  F01L2013/116 ,  F01L2201/00 ,  F01L2800/00 ,  F01L2800/05 ,  F01L2820/044 ,  F02D13/0219 ,  F02D13/0261 ,  F02D41/0062 ,  F02D41/0072 ,  F02D41/021 ,  F02D41/04 ,  F02D41/1406 ,  F02D41/2422 ,  F02D2041/001 ,  F02D2041/1412 ,  F02D2200/021 ,  F02D2200/0402 ,  F02D2200/0418 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/602 ,  F02D2200/70 ,  Y02T10/18

Abstract: A method of phasing the opening and closing of internal combustion engine intake and exhaust valves relative to the rotation of the crankshaft is based upon changes in engine speed, engine load and ambient relative humidity. During certain conditions of higher humidity, in order to maintain good combustion stability and thus overall engine operation, it is necessary to reduce intake and exhaust valve overlap by adjusting the phase of the intake and exhaust camshafts. This is achieved by utilizing a set of cam position reference values and constraints based upon engine speed, engine load and humidity that are contained in lookup tables that adjust and limit cam position and valve overlap. Generally speaking, in order to maintain optimum engine performance, intake and exhaust valve overlap is reduced with higher ambient humidity and vice versa.

公开(公告)号：US20180216501A1

公开(公告)日：2018-08-02

申请号：US15421795

申请日：2017-02-01

Applicant: GM Global Technology Operations LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  Michael B. Fleck ,  Ronald B. Beals ,  Kevin M. Luchansky

IPC: F01L1/18

CPC classification number: F01L1/181 ,  F01L1/146 ,  F01L1/46 ,  F01L2101/00 ,  F01L2101/02 ,  F01L2103/00 ,  F01L2810/02

Abstract: A monolithic rocker arm component includes a first lateral wall defining a first aperture and a first mass reducing feature, an opposing second wall defining a second aperture and a second mass reducing feature, a pushrod receiving member that bridges the first lateral wall and the second lateral wall at a first end of the rocker arm, and a tongue element that bridges the first lateral wall and the second lateral wall at a second end of the rocker arm. The pushrod receiving member routes oil from the first towards the second end. The monolithic rocker arm may have one or more internal regions having lattice structures. Methods for additive manufacturing the monolithic rocker component are also provided.