skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Hydraulic engine valve actuation system including independent feedback control

Abstract

A hydraulic valve actuation assembly may include a housing, a piston, a supply control valve, a closing control valve, and an opening control valve. The housing may define a first fluid chamber, a second fluid chamber, and a third fluid chamber. The piston may be axially secured to an engine valve and located within the first, second and third fluid chambers. The supply control valve may control a hydraulic fluid supply to the piston. The closing control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the second fluid chamber to the supply control valve. The opening control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the supply control valve to the second fluid chamber.

Inventors:
Publication Date:
Research Org.:
GM Global Technology Operations LLC
Sponsoring Org.:
USDOE
OSTI Identifier:
1084367
Patent Number(s):
8,453,619
Application Number:
12/984,233
Assignee:
GM Global Technology Operations LLC NETL
DOE Contract Number:  
FC26-05NT42415
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Marriott, Craig D. Hydraulic engine valve actuation system including independent feedback control. United States: N. p., 2013. Web.
Marriott, Craig D. Hydraulic engine valve actuation system including independent feedback control. United States.
Marriott, Craig D. Tue . "Hydraulic engine valve actuation system including independent feedback control". United States. doi:. https://www.osti.gov/servlets/purl/1084367.
@article{osti_1084367,
title = {Hydraulic engine valve actuation system including independent feedback control},
author = {Marriott, Craig D},
abstractNote = {A hydraulic valve actuation assembly may include a housing, a piston, a supply control valve, a closing control valve, and an opening control valve. The housing may define a first fluid chamber, a second fluid chamber, and a third fluid chamber. The piston may be axially secured to an engine valve and located within the first, second and third fluid chambers. The supply control valve may control a hydraulic fluid supply to the piston. The closing control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the second fluid chamber to the supply control valve. The opening control valve may be located between the supply control valve and the second fluid chamber and may control fluid flow from the supply control valve to the second fluid chamber.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 04 00:00:00 EDT 2013},
month = {Tue Jun 04 00:00:00 EDT 2013}
}

Patent:

Save / Share: