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:
- Issue Date:
- Research Org.:
- GM Global Technology Operations LLC
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1084367
- Patent Number(s):
- 8453619
- Application Number:
- 12/984,233
- Assignee:
- GM Global Technology Operations LLC
- 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. 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}
}
Works referenced in this record:
Valve actuator assembly having a center biased spool valve with detent feature
patent, January 2010
- Marriott, Craig D.; Sun, Zongxuan
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Hydraulic actuator for operating an engine cylinder valve
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- Van Weelden, Curtis L.
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Electromagnetic actuator for a cylinder valve including an integrated valve lash adjuster
patent, April 2000
- Lohse, Enno; Müller, Ulrich
- US Patent Document 6,047,673
Dosing device for fluids, especially a motor vehicle injection valve
patent, December 2007
- Fischer, Bernhard; Gottlieb, Bernhard; Kappel, Andreas
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