公开(公告)号：US20200063704A1

公开(公告)日：2020-02-27

申请号：US16107199

申请日：2018-08-21

Applicant: Caterpillar Inc.

Inventor： Jonathan W. Anders ,  Bobby John ,  Robert Campion

IPC: F02M63/02 ,  F02M61/18 ,  F02M45/08 ,  F02M57/02

Abstract: A liquid fuel injector for a fuel system in an internal combustion engine includes two injection control valves for controlling two outlet checks. A common nozzle supply cavity is fluidly connected to an inlet passage and supplies each of the two sets of nozzle outlets opened and closed by the outlet checks. A first nozzle outlet set forms a narrower spray angle and has a first combination of outlet number and outlet size, and a second nozzle outlet set forms a wider spray angle and has a second combination of outlet number and outlet size. The first nozzle outlet set has a greater steady flow than the second nozzle outlet set.

公开(公告)号：US10563632B2

公开(公告)日：2020-02-18

申请号：US15832295

申请日：2017-12-05

Applicant: Caterpillar Inc.

Inventor： Glen Clifford Martin ,  Jonathan W. Anders ,  Robert M. Campion ,  Bobby John

IPC: F02M61/18 ,  F02M61/16 ,  F02M43/04

Abstract: A fuel injector includes a nozzle including at least one outer orifice. The at least one outer orifice selectively injects a first fuel. An outer check is disposed movably within the nozzle. The outer check includes at least one first orifice and at least one second orifice. The at least one first orifice and the at least one second orifice are disposed circumferentially spaced apart with respect to one another. Each of the at least one first orifice and the at least one second orifice selectively injects a second fuel. An inner check is disposed movably and concentrically within the outer check. The at least one outer orifice is adapted to selectively injects at least one of the first fuel and the second fuel therethrough based on a position of each of the outer check and the inner check.

公开(公告)号：US20180283315A1

公开(公告)日：2018-10-04

申请号：US15475848

申请日：2017-03-31

Applicant: Caterpillar Inc.

Inventor： Bobby John ,  Jonathan W. Anders ,  David Todd Montgomery ,  Kenth I. Svensson

IPC: F02F3/28 ,  F02M61/14 ,  F02M61/18 ,  F02D41/40

Abstract: A combustion system for an internal combustion engine includes a cylinder having a cylinder wall defining a bore, a piston disposed inside the bore, a combustion chamber delimited by a cylinder head, the cylinder wall, and the piston. The piston includes a piston bowl defining a floor portion, and at least one scooped recess extending radially outwardly from a periphery of the piston bowl. The internal combustion engine further includes a fuel injector configured to inject fuel into the combustion chamber as a plurality of fuel jets at a main injection timing such that each fuel jet contacts the floor portion of the piston bowl and follows a profile of the piston bowl and enter the at least one scooped recess. Furthermore, at least one of the plurality of is deflected by the at least one scooped recess away from the cylinder wall.

公开(公告)号：US20180119637A1

公开(公告)日：2018-05-03

申请号：US15338643

申请日：2016-10-31

Applicant: Caterpillar Inc.

Inventor： Bobby John ,  Jonathan W. Anders

IPC: F02F3/28 ,  F02F1/24 ,  F02M61/14

CPC classification number: F02F3/28 ,  F02B23/0624 ,  F02F1/242 ,  F02F3/24 ,  F02M61/14

Abstract: A piston has a piston crown portion forming at least one arcuate indent in aligned fashion with a fuel jet discharged into a combustion chamber. Each arcuate event forms lobes, which separate the fuel jet into portions, or is tiered, to accommodate fuel jet portions being discharged into the combustion chamber at different times. Each lobe or tier includes an entry surface, a recirculation surface and a wall to separate it from adjacent lobes or tiers, respectively.

公开(公告)号：US09181682B2

公开(公告)日：2015-11-10

申请号：US13868790

申请日：2013-04-23

Applicant: Caterpillar Inc.

Inventor： Jonathan W. Anders ,  Brian D. Kuras ,  Adam M. Nackers ,  Christopher P. Braet

IPC: E02F9/20 ,  G05B13/02 ,  G05B11/42 ,  E02F9/12 ,  E02F9/22

CPC classification number: E02F9/2058 ,  E02F9/123 ,  E02F9/2095 ,  E02F9/2253 ,  G05B11/42 ,  G05B13/02

Abstract: A system and method are provided for controlling a movable element in accordance with a speed command. The movable element, which may be an excavator swing platform, is moved via an actuator that is driven in accordance with a torque command. The speed of the movable element is sensed, and a torque command is generated via PID control based on the speed command and the sensed speed. The PID control uses a set of gains including a P-gain, an I-gain, and a D-gain. At least one of these gains is set based on a counter, and the counter is set, cleared, incremented, or decremented based on one or more of the speed command, the torque command and the sensed speed. In this way, the movable element responds aggressively to operator input, but stability is maintained.

Abstract translation: 提供了一种用于根据速度指令控制可移动元件的系统和方法。 可移动元件（其可以是挖掘机摆动平台）通过根据扭矩指令驱动的致动器移动。 感测到可动元件的速度，并通过基于速度指令和检测速度的PID控制产生转矩指令。 PID控制使用一组增益，包括P增益，I增益和D增益。 这些增益中的至少一个基于计数器设置，并且基于速度命令，转矩命令和感测速度中的一个或多个来设置，清除，递增或递减计数器。 以这种方式，可移动元件对操作者输入进行积极的响应，但是保持稳定性。