公开(公告)号：US09790869B2

公开(公告)日：2017-10-17

申请号：US14669058

申请日：2015-03-26

Applicant: General Electric Company

Inventor： Paul Lloyd Flynn ,  Ganesha Koggu Naik ,  Thomas Michael Lavertu ,  Victor Manuel Salazar ,  Jeffrey David Willis

IPC: F02B13/00 ,  F02D19/06 ,  F02D41/00 ,  F02D13/02 ,  F02D19/08 ,  F02D35/02

CPC classification number: F02D19/0642 ,  F02D13/0234 ,  F02D13/0269 ,  F02D19/0647 ,  F02D19/0673 ,  F02D19/08 ,  F02D35/025 ,  F02D41/0002 ,  F02D41/0025 ,  F02D41/0027 ,  F02D2041/001 ,  F02D2200/0414 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/703 ,  Y02T10/142 ,  Y02T10/18 ,  Y02T10/36 ,  Y02T10/42

Abstract: Various methods and systems are provided for a multi-fuel capable engine. In one example, a system comprises an engine having at least one cylinder controlled via an intake valve, a first fuel system to deliver liquid fuel and a second fuel system to deliver gaseous fuel to the at least one cylinder, a variable valve timing actuation system to adjust one or more of an opening or a closing timing of the intake valve, and a controller. The controller is configured to, during a liquid fuel only mode, adjust the variable valve timing actuation system to close the intake valve at a first timing based at least on engine load, and during a multi-fuel mode, adjust the variable valve timing actuation system to close the intake valve at a second timing.

公开(公告)号：US08919311B2

公开(公告)日：2014-12-30

申请号：US13786530

申请日：2013-03-06

Applicant: General Electric Company

Inventor： Paul Lloyd Flynn ,  Ganesha Koggu Naik

IPC: F01L1/18 ,  F01L1/34

CPC classification number: F01L1/34 ,  F01B1/04 ,  F01L1/146 ,  F01L13/0026 ,  F01L2001/054 ,  F02B75/22

Abstract: Various methods and systems are provided for varying valve timing in a V-engine. In one embodiment, a method for an engine comprises pivoting a first cam follower for a first cylinder of a first bank and a second cam follower for a second cylinder of a second bank about a rotatable pivot shaft, driving the first cam follower and the second cam follower with a camshaft to operate a respective first valve of the first cylinder and a second valve of the second cylinder, and rotating the pivot shaft to vary a valve timing of the first cylinder and the second cylinder.

Abstract translation: 提供了用于在V型发动机中改变气门正时的各种方法和系统。 在一个实施例中，一种用于发动机的方法包括使用于第一组的第一气缸的第一凸轮从动件和用于第二组的第二气缸的第二凸轮从动件围绕可旋转的枢轴枢转，驱动第一凸轮从动件和第二凸轮从动件 具有凸轮轴的凸轮从动件用于操作第一气缸的相应的第一阀和第二气缸的第二阀，并且使枢转轴旋转以改变第一气缸和第二气缸的气门正时。

公开(公告)号：US20140251246A1

公开(公告)日：2014-09-11

申请号：US13786530

申请日：2013-03-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Paul Lloyd Flynn ,  Ganesha Koggu Naik

IPC: F01L1/34

CPC classification number: F01L1/34 ,  F01B1/04 ,  F01L1/146 ,  F01L13/0026 ,  F01L2001/054 ,  F02B75/22

Abstract: Various methods and systems are provided for varying valve timing in a V-engine. In one embodiment, a method for an engine comprises pivoting a first cam follower for a first cylinder of a first bank and a second cam follower for a second cylinder of a second bank about a rotatable pivot shaft, driving the first cam follower and the second cam follower with a camshaft to operate a respective first valve of the first cylinder and a second valve of the second cylinder, and rotating the pivot shaft to vary a valve timing of the first cylinder and the second cylinder.

Abstract translation: 提供了用于在V型发动机中改变气门正时的各种方法和系统。 在一个实施例中，一种用于发动机的方法包括使用于第一组的第一气缸的第一凸轮从动件和用于第二组的第二气缸的第二凸轮从动件围绕可旋转的枢轴枢转，驱动第一凸轮从动件和第二凸轮从动件 具有凸轮轴的凸轮从动件，用于操作第一气缸的相应第一阀和第二气缸的第二阀，并且使枢转轴旋转以改变第一气缸和第二气缸的气门正时。