公开(公告)号：US20230235687A1

公开(公告)日：2023-07-27

申请号：US18130087

申请日：2023-04-03

Applicant: Pacbrake Company

Inventor： Kody TAYLOR ,  James BALDWIN ,  Peter STEC

IPC: F01L13/06 ,  F01L9/10 ,  F01L9/40 ,  F01L1/18 ,  F01L1/22 ,  F01L1/26 ,  F01L1/46 ,  F02D13/04 ,  F01L1/24

CPC classification number: F01L13/065 ,  F01L9/10 ,  F01L9/40 ,  F01L1/18 ,  F01L1/22 ,  F01L1/26 ,  F01L1/462 ,  F02D13/04 ,  F01L1/181 ,  F01L1/267 ,  F01L13/06 ,  F01L1/2411 ,  F01L2001/467 ,  F01L2001/2444

Abstract: A compression-release engine brake system operating an exhaust valve of an engine during a compression-release engine braking operation. The compression-release brake system comprises an exhaust rocker arm and a brake reset device disposed in a reset bore formed in the exhaust rocker arm. The brake reset device comprises a reset check valve, a slider-piston slidably disposed in the reset bore and an external slider bias spring biasing the piston foot away from the brake reset device. The external slider bias spring is disposed outside the reset bore and around the piston-slider. The brake reset device permits pressurized hydraulic fluid to flow from a supply conduit to a reset conduit to supply a brake actuation piston when the reset check valve is open. The actuation piston extends and engages the exhaust valve toward the end of a compression stroke of the internal combustion engine, and the brake reset device resets.

公开(公告)号：US20190249606A1

公开(公告)日：2019-08-15

申请号：US16333249

申请日：2016-10-06

Applicant: VOLVO TRUCK CORPORATION

Inventor： Anders MOHLIN

IPC: F02D13/04 ,  F02D9/06 ,  F02D13/02 ,  F02D41/00 ,  F02D9/02 ,  F01L1/08 ,  F01L1/18 ,  F01L1/344 ,  F01L13/06

CPC classification number: F02D13/04 ,  F01L1/08 ,  F01L1/181 ,  F01L1/34 ,  F01L1/344 ,  F01L13/065 ,  F01L2013/105 ,  F01L2105/00 ,  F01L2800/00 ,  F01N13/107 ,  F01N2240/36 ,  F01N2590/08 ,  F02D9/02 ,  F02D9/06 ,  F02D13/0249 ,  F02D13/0276 ,  F02D41/0007 ,  F02D41/12 ,  F02D2009/0242 ,  F02D2700/04

Abstract: An internal combustion engine includes a cylinder including a piston connected to a rotatable crankshaft, an air guide arranged to guide an air flow to the cylinder an adjustable air flow restriction element arranged to restrict the How through the air guide, an exhaust guide being arranged to guide a gas flow from the cylinder, an adjustable exhaust flow restriction element arranged to restrict the flow through the exhaust guide, an exhaust valve arranged to control a communication between the cylinder and the exhaust guide, and an exhaust valve actuation assembly for actuating the exhaust valve so as to perform in each of a plurality of cycles of the cylinder an exhaust valve actuation sequence, wherein the exhaust valve actuation assembly is adapted to control the commencement of the exhaust valve actuation sequence to occur selectively at any crankshaft angle within a non-zero crankshaft angle interval.

公开(公告)号：US20190234246A1

公开(公告)日：2019-08-01

申请号：US16318381

申请日：2017-07-18

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Marco ALESSANDRIA

IPC: F01L1/18 ,  F01L1/20

CPC classification number: F01L1/181 ,  F01L1/20 ,  F01L1/46 ,  F01L2001/467

Abstract: A method for setting lash on a rocker arm assembly having a lost motion stroke includes: providing a rocker arm having a lost motion shaft including a collar, the lost motion shaft being biased toward a valve bridge by a lost motion spring, the lost motion shaft being translatable along a bore defined in the rocker arm; inserting a feeler gage in an area between the collar and the rocker arm; and adjusting an adjusting screw until a desired lash is attained.

公开(公告)号：US20190145291A1

公开(公告)日：2019-05-16

申请号：US16244135

申请日：2019-01-10

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Majo Cecur ,  Marco Alessandria ,  Nicola Andrisani

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

CPC classification number: F01L13/06 ,  F01L1/18 ,  F01L1/181 ,  F01L1/24 ,  F01L1/2416 ,  F01L13/065 ,  F01L2760/004 ,  F02D13/04

Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode includes: a rocker shaft that defines a pressurized oil supply conduit; a rocker arm for receiving the rocker shaft and to rotate around the rocker shaft, the rocker arm including an oil supply passage defined therein; a valve bridge for engaging a first exhaust valve and a second exhaust valve; a first plunger body movable between a first position and a second position, and that in the first position extends rigidly for cooperative engagement with the valve bridge; a check valve disposed on the rocker arm and including an actuator for selectively releasing pressure acting on the first plunger body, the actuator including a needle including a longitudinal disk portion and a disk portion; and an oil discharge circuit for to selectively depressurizing oil under the disk portion of the actuator.

公开(公告)号：US20190048761A1

公开(公告)日：2019-02-14

申请号：US15713028

申请日：2017-09-22

Applicant: MOTONIC CORPORATION

Inventor： Wan Jae JEON ,  Soo Hyun HWANG ,  Jong Wung PARK ,  Jun Min PARK ,  Chan Wung PARK ,  Dong Hyeong LEE

IPC: F01L1/22 ,  F01L1/18 ,  F02D13/06 ,  F01L9/04

CPC classification number: F01L1/22 ,  F01L1/18 ,  F01L1/181 ,  F01L1/267 ,  F01L9/04 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2013/001 ,  F01L2105/00 ,  F02D13/06

Abstract: Provided is a variable valve lift actuator of an engine, which includes: a first body rotating; a second body; a driving module; and a return spring, wherein an entire portion or a partial front end of the driving module is inserted into a rear end of the second body, the lift degree of the valve is variably controlled in two stages of a high-speed mode and a low-speed mode based on an operating condition of the engine, and when only the high-speed cam is installed on the camshaft, the driving pin is operated in a low-speed and low-load state of the engine to separate the first body from the second body so as to deactivate a cylinder.

公开(公告)号：US20180334929A1

公开(公告)日：2018-11-22

申请号：US15794852

申请日：2017-10-26

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Myungsik CHOI ,  Younghong Kwak

IPC: F01L1/18

CPC classification number: F01L1/181 ,  F01L1/26 ,  F01L2105/00

Abstract: A vehicle roller finger follower may include a main body including a supporting portion and a wall portion having one end portion integrally extending in a width direction of the supporting portion at both sides; and a pallet portion formed toward an outside in the width direction of the main body at the other end portion of the wall portion, wherein the wall portion has a mounting hole to mount a bearing, and a connection portion is formed at a lower portion of the wall portion at a position corresponding to the mounting hole.

公开(公告)号：US20180320563A1

公开(公告)日：2018-11-08

申请号：US15974038

申请日：2018-05-08

Applicant: MAN Truck & Bus Österreich GesmbH

Inventor： Gottfried Raab ,  Thomas Eibl ,  Franz Leitenmayr ,  Ewald Hundsberger

IPC: F01L1/24 ,  F01L13/00

CPC classification number: F01L1/2416 ,  F01L1/181 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2001/2444 ,  F01L2105/00 ,  F01L2810/04 ,  F01L2820/031

Abstract: A valve train lever for actuating a valve of a reciprocating piston engine, in particular an internal combustion engine. The valve train lever comprises a lever arm, which is pivotally movable about a pin; a tapping element, which lies against or can be made to lie against a cam of a camshaft of the reciprocating piston engine; a coupling mechanism, by way of which the tapping element is coupled to the lever arm spring-elastically in a first state and rigidly in a second state; and an actuating element, which is connected to the lever arm and lies against or can be made to lie against a valve tappet of the valve.

公开(公告)号：US20180283237A1

公开(公告)日：2018-10-04

申请号：US15942355

申请日：2018-03-30

Applicant: Mahle International GmbH

Inventor： Patrick Altherr ,  Thorsten Ihne ,  David Moczko ,  Markus Walch

IPC: F01L13/00 ,  F01L1/047 ,  F01L1/18

CPC classification number: F01L13/0005 ,  F01L1/047 ,  F01L1/053 ,  F01L1/18 ,  F01L1/181 ,  F01L1/267 ,  F01L13/0036 ,  F01L13/06 ,  F01L2013/101 ,  F01L2013/105 ,  F01L2105/00

Abstract: A valve drive for an internal combustion engine may include a camshaft, at least one cam follower, and at least one adjusting device. The camshaft may include at least one cam group including a first cam and a second cam. The at least one adjusting device may include a first adjustable engagement element configured to contact a first guide and a second adjustable engagement element configured to contact a second guide of a slotted guide The at least one adjusting device may further include a stop arrangement axially shiftable relative to a rocker lever shaft. The stop arrangement may include a first stop region and a second stop region. At least one of the first engagement element and the second engagement element may be adjustable via the first stop region and the second stop region, respectively, when the stop arrangement is shifted along the rocker lever shaft.

公开(公告)号：US20180274403A1

公开(公告)日：2018-09-27

申请号：US15936375

申请日：2018-03-26

Applicant: Mahle International GmbH

Inventor： Patrick Altherr ,  Thorsten Ihne ,  Markus Walch

IPC: F01L13/00 ,  F01L1/047 ,  F01L1/22

CPC classification number: F01L13/0005 ,  F01L1/024 ,  F01L1/026 ,  F01L1/04 ,  F01L1/047 ,  F01L1/053 ,  F01L1/12 ,  F01L1/181 ,  F01L1/22 ,  F01L1/267 ,  F01L13/00 ,  F01L13/0036 ,  F01L2013/001 ,  F01L2013/0052 ,  F01L2013/10 ,  F01L2105/00

Abstract: A valve drive for an internal combustion engine may include a cam shaft, at least one cam follower, at least one adjusting device, and at least one control shaft. The cam shaft may include at least one cam group that may include a first cam and a second cam The at least one adjusting device may include a first adjustable engagement element and a second adjustable engagement element. The at least one control shaft may include at least one control cam group that may include a first control cam and a second control cam. The first control cam may include a cam lobe corresponding to the first engagement element and the second control cam may include a cam lobe corresponding to the second engagement element. The at least one control shaft may be rotatable about a longitudinal axis between a starting position and a rotational position.

公开(公告)号：US10072540B2

公开(公告)日：2018-09-11

申请号：US15031718

申请日：2014-10-07

Applicant: YANMAR CO., LTD.

Inventor： Hitoshi Koyama

IPC: F01L1/34 ,  F01L13/00 ,  F01L1/14 ,  F01L1/18 ,  F01L1/053 ,  F01L1/047

CPC classification number: F01L13/0063 ,  F01L1/053 ,  F01L1/146 ,  F01L1/181 ,  F01L13/0026 ,  F01L2001/054 ,  F01L2105/00 ,  F01L2800/09 ,  F01L2820/031 ,  F01L2820/032 ,  F01L2820/033

Abstract: A variable valve timing system includes an exhaust swing arm swung in accordance with rotation of a camshaft, an intake swing arm similarly swung in accordance with the rotation of the camshaft, and a swing shaft swingably supporting the exhaust swing arm and the intake swing arm. In an engine including a plurality of the variable valve timing systems, the adjacent swing shafts are coupled to each other. The engine includes a link mechanism connected to one of the swing shafts, and an actuator for moving the link mechanism. The actuator controls turning angles of all the swing shafts via the link mechanism.