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Title: Discrete variable valve lift engine systems and methods

Abstract

A method of providing a rocker arm set for a valvetrain includes providing a first rocker arm configured as a switching rocker arm for a first intake valve, and providing a second rocker arm configured as a fixed rocker arm for a second intake valve, the second rocker arm operating in a normal Otto cycle mode. The first rocker arm operates in a late intake valve closing (LIVC) mode where the first rocker arm is configured to close the first intake valve later than the second intake valve.

Inventors:
; ; ;
Issue Date:
Research Org.:
Eaton Corp., Cleveland, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1805604
Patent Number(s):
10941680
Application Number:
16/022,054
Assignee:
Eaton Corporation (Cleveland, OH)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
DOE Contract Number:  
EE0005981
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/28/2018
Country of Publication:
United States
Language:
English

Citation Formats

McCarthy, Jr., James E., Brownell, Edwin Scott, Saggam, Nikhil, and Dharmadhikari, Susheel. Discrete variable valve lift engine systems and methods. United States: N. p., 2021. Web.
McCarthy, Jr., James E., Brownell, Edwin Scott, Saggam, Nikhil, & Dharmadhikari, Susheel. Discrete variable valve lift engine systems and methods. United States.
McCarthy, Jr., James E., Brownell, Edwin Scott, Saggam, Nikhil, and Dharmadhikari, Susheel. Tue . "Discrete variable valve lift engine systems and methods". United States. https://www.osti.gov/servlets/purl/1805604.
@article{osti_1805604,
title = {Discrete variable valve lift engine systems and methods},
author = {McCarthy, Jr., James E. and Brownell, Edwin Scott and Saggam, Nikhil and Dharmadhikari, Susheel},
abstractNote = {A method of providing a rocker arm set for a valvetrain includes providing a first rocker arm configured as a switching rocker arm for a first intake valve, and providing a second rocker arm configured as a fixed rocker arm for a second intake valve, the second rocker arm operating in a normal Otto cycle mode. The first rocker arm operates in a late intake valve closing (LIVC) mode where the first rocker arm is configured to close the first intake valve later than the second intake valve.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {3}
}

Works referenced in this record:

Four-Stroke Cycle Internal Combusion Engine
patent-application, September 2009


Development of a Switching Roller Finger Follower for Cylinder Deactivation in Internal Combustion Engines
patent-application, September 2015


Deactivating roller finger follower
patent-application, February 2007


Method for controlling an inlet valve of an internal combustion engine
patent-application, August 2006


Variable Valve Control Apparatus
patent-application, March 2010


Rocker Arm Providing Cylinder Deactivation
patent-application, June 2013


Rocker arm assembly
patent, November 2001


Rocker Arm Assembly and Components Therefor
patent-application, November 2013


Switching Rocker Arm
patent-application, September 2011


Variable Valve Device for Internal Combustion Engine
patent-application, May 2011