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    Type II valvetrain and hydraulic engine brake arrangement
    1.
    发明授权
    Type II valvetrain and hydraulic engine brake arrangement 有权

    公开(公告)号：US11448104B2

    公开(公告)日：2022-09-20

    申请号：US17503911

    申请日：2021-10-18

    申请人： Deere & Company

    发明人： Neil S. Erickson

    IPC分类号： F02D1/00 ,  F01L13/06 ,  F01L1/18 ,  F01L13/00 ,  F01L1/24

    摘要： A Type II valvetrain and engine brake arrangement includes a hydraulic brake housing mountable to a valve block of the engine. A brake piston is coupled to a brake rod and a brake cam lobe and is movable between an activated position and a non-activated position. A finger follower is disposed relative to the brake housing so that the brake rod engages the finger follower at least when the brake piston is in the activated position. When the brake piston is in a non-activated position, the finger follower is configured to pivot about a pivot as the finger follower follows a valve cam lobe to effect lifting and seating of a cylinder valve of an engine cylinder. When the brake piston is in the activated position, the finger follower, at least in part, pivots from about the pivot and the brake rod engages an end of the finger follower to lift the cylinder valve and release compression from the engine cylinder.

    Type II valvetrain and hydraulic engine brake arrangement
    2.
    发明授权
    Type II valvetrain and hydraulic engine brake arrangement 有权

    公开(公告)号：US11181018B1

    公开(公告)日：2021-11-23

    申请号：US17185536

    申请日：2021-02-25

    申请人： Deere & Company

    发明人： Neil S. Erickson ,  John Mandell

    IPC分类号： F02D1/00 ,  F01L13/06 ,  F01L13/00 ,  F01L1/24 ,  F01L1/18

    摘要： A Type II valvetrain and engine brake arrangement includes a brake housing defining a hydraulic circuit and a follower piston chamber and a brake piston chamber. A follower piston in the follower piston chamber is configured to follow a rotating brake cam lobe. A brake piston in the brake piston chamber is in pressure responsive relation with the follower piston to move. A finger follower is disposed so that a brake rod coupled to the brake piston engages the finger follower at least when the brake piston is in an activated position. When the brake piston is the activated position, the finger follower pivots from a first end about a pivot as the finger follower follows a valve cam lobe to effect lifting and seating of a cylinder valve. When the brake piston is activated, the finger follower, at least in part, pivots from the first end about the pivot and the brake rod lifts the cylinder valve and released compression from the engine cylinder.

    Rocker arm assembly for engine braking
    6.
    发明授权
    Rocker arm assembly for engine braking 有权

    公开(公告)号：US10450908B2

    公开(公告)日：2019-10-22

    申请号：US16244135

    申请日：2019-01-10

    申请人： EATON INTELLIGENT POWER LIMITED

    发明人： Majo Cecur ,  Marco Alessandria ,  Nicola Andrisani

    IPC分类号： F02D1/00 ,  F01L13/06 ,  F01L1/18 ,  F01L1/24 ,  F02D13/04

    摘要： 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.

    Gasoline Reid Vapor Pressure detection with brushless fuel pump
    8.
    发明授权
    Gasoline Reid Vapor Pressure detection with brushless fuel pump 有权

    公开(公告)号：US10094305B1

    公开(公告)日：2018-10-09

    申请号：US15688174

    申请日：2017-08-28

    申请人： GM Global Technology Operations LLC

    发明人： Dale F. Klein ,  Manoharan Thiagarajan ,  Andrew M. Shaw

    IPC分类号： F02D19/06 ,  F02D1/02 ,  F02D1/00

    摘要： A gasoline Reid vapor pressure (RVP) detection system includes a fuel pump and a motor operating the fuel pump in a forward direction of rotation to feed a gasoline fuel to a vehicle engine. A control device is in communication with the motor selectively directing change from the forward direction of rotation to a reverse direction of rotation opposite to the forward direction of rotation. A pressure reduction device receives flow of the fuel during operation in the reverse direction of rotation and reduces a pressure of the fuel until fuel vaporization occurs. A pump speed at which vaporization of the fuel occurs at the pressure reduction device when a motor speed and a motor current change non-linearly is correlated to a fuel RVP.