Valve actuator assembly having a center biased spool valve with detent feature

Marriott, Craig D.; Sun, Zongxuan

Title: Valve actuator assembly having a center biased spool valve with detent feature

Abstract

A valve actuator assembly for an engine includes a movable poppet valve, and movable first and second spool valves. The assembly also includes an intermediate channel interconnecting the first and second spool valve, a driving channel, and a first and second feedback channel interconnecting the second spool valve and the poppet valve. The valve actuator assembly includes an actuator cooperating with the first spool valve to position the first spool valve to selectively allow high pressure fluid flow to the second spool valve and the driving channel to position the engine valve. The valve actuator assembly further includes a first and second on/off valve in respective fluid communication with the first feedback channel and the second feedback channel to selectively exhaust the first and second feedback channel to control motion of the second spool valve. The second spool valve includes a detent feature operable to maintain the second spool valve in a center biased position.

Inventors:: Marriott, Craig D.; Sun, Zongxuan

Issue Date:: 2010-01-12

Research Org.:: GM Global Technology Operations, Inc., Detroit, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531621

Patent Number(s):: 7644688

Application Number:: 11/417,097

Assignee:: GM Global Technology Operations LLC (Detroit, MI)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/86622 - Motor-operated

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DOE Contract Number:: FC26-05NT42415

Resource Type:: Patent

Resource Relation:: Patent File Date: 2006-05-03

Country of Publication:: United States

Language:: English

Citation Formats


                    Marriott, Craig D., and Sun, Zongxuan. Valve actuator assembly having a center biased spool valve with detent feature.  United States: N. p., 2010. 
        Web.

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                    Marriott, Craig D., & Sun, Zongxuan. Valve actuator assembly having a center biased spool valve with detent feature.  United States.

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                    Marriott, Craig D., and Sun, Zongxuan. Tue .  
        "Valve actuator assembly having a center biased spool valve with detent feature".  United States.  https://www.osti.gov/servlets/purl/1531621.

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@article{osti_1531621,

  title        = {Valve actuator assembly having a center biased spool valve with detent feature},

  author       = {Marriott, Craig D. and Sun, Zongxuan},

  abstractNote = {A valve actuator assembly for an engine includes a movable poppet valve, and movable first and second spool valves. The assembly also includes an intermediate channel interconnecting the first and second spool valve, a driving channel, and a first and second feedback channel interconnecting the second spool valve and the poppet valve. The valve actuator assembly includes an actuator cooperating with the first spool valve to position the first spool valve to selectively allow high pressure fluid flow to the second spool valve and the driving channel to position the engine valve. The valve actuator assembly further includes a first and second on/off valve in respective fluid communication with the first feedback channel and the second feedback channel to selectively exhaust the first and second feedback channel to control motion of the second spool valve. The second spool valve includes a detent feature operable to maintain the second spool valve in a center biased position.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2010},

  month        = {1}

}

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Works referenced in this record:

Hydraulic isolation valve
patent, August 1989

Fairman, Ronald E.
US Patent Document 4,860,781
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4860781

Hydraulic valve repair kit and method of use
patent, April 2004

Bolaski, Lawrence P.
US Patent Document 6,722,385
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6722385

Engine valve actuator assembly with dual automatic regulation
patent, November 2005

Sun, Zongxuan
US Patent Document 6,959,673
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6959673

Engine valve actuator assembly with dual automatic regulation
patent-application, December 2004

Sun, Zongxuan
US Patent Application 10/405966; 20040250781
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220040250781%22.PGNR.&OS=DN/20040250781&RS=DN/20040250781

Works referencing / citing this record:

Hydraulic engine valve actuation system including independent feedback control
patent, June 2013

Marriott, Craig D.
US Patent Document 8,453,619
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8453619

Method and device for controlling a hydraulic actuator
patent, July 2013

Schiemann, Juergen
US Patent Document 8,485,148
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8485148

System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems
patent, September 2014

Brennan, Daniel G.; Marriott, Craig D.; Cowgill, Joel
US Patent Document 8,839,750
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8839750

Valve control systems and methods for cylinder deactivation and activation transitions
patent, October 2015

Brennan, Daniel G.
US Patent Document 9,169,787
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9169787

System and method for controlling a variable valve actuation system to reduce delay associated with reactivating a cylinder
patent, February 2017

Rayl, Jr., Allen B.; Brennan, Daniel G.
US Patent Document 9,567,928
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9567928

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Title: Valve actuator assembly having a center biased spool valve with detent feature

Abstract

Citation Formats

Hydraulic isolation valve patent, August 1989

Hydraulic valve repair kit and method of use patent, April 2004

Engine valve actuator assembly with dual automatic regulation patent, November 2005

Engine valve actuator assembly with dual automatic regulation patent-application, December 2004

Hydraulic engine valve actuation system including independent feedback control patent, June 2013

Method and device for controlling a hydraulic actuator patent, July 2013

System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems patent, September 2014

Valve control systems and methods for cylinder deactivation and activation transitions patent, October 2015

System and method for controlling a variable valve actuation system to reduce delay associated with reactivating a cylinder patent, February 2017

Hydraulic isolation valve
patent, August 1989

Hydraulic valve repair kit and method of use
patent, April 2004

Engine valve actuator assembly with dual automatic regulation
patent, November 2005

Engine valve actuator assembly with dual automatic regulation
patent-application, December 2004

Hydraulic engine valve actuation system including independent feedback control
patent, June 2013

Method and device for controlling a hydraulic actuator
patent, July 2013

System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems
patent, September 2014

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patent, October 2015

System and method for controlling a variable valve actuation system to reduce delay associated with reactivating a cylinder
patent, February 2017