Patents by Inventor Melissa Mei Koenig
Melissa Mei Koenig has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9422840Abstract: In a hydraulic valve comprising a spool, one or more band-shape check valves and an enclosing bolt or snout, the check valve may be compressed to the point of excessive wear or failure and may impede spool movement. The problem outlined is solved by an inventive hydraulic valve for use with a cam phasing apparatus of an internal combustion engine. The hydraulic valve comprises a hollow bolt or snout, check valves, and a spool disposed inside the bolt while still being able to shift axially within the bolt. The bolt and spool are configured to provide fluid passageways between the spool and the cam phasing apparatus depending on a translational displacement of the spool. Furthermore, the spool is configured to allow an oil flow through the fluid passageway, yet limit a compression of the band-type check valves.Type: GrantFiled: June 24, 2014Date of Patent: August 23, 2016Assignee: HILITE GERMANY GMBHInventors: Kenneth J. Parker, John Snyder, Brian Sapp, Udo Diederichs, Melissa Mei Koenig
-
Patent number: 9341090Abstract: An oscillating-motor camshaft adjuster which provides that, through software, camshaft alternating torque is utilized only in conditions where the torque is adequate and/or it is important to reduce flow consumption. If there is two step lift and the camshaft alternating torque is not adequate in low lift, software can position the spool to utilize some camshaft alternating torque while also tanking oil to speed up the phasing.Type: GrantFiled: February 6, 2014Date of Patent: May 17, 2016Assignee: HILITE GERMANY GMBHInventors: Bernd Last, Gordon Neudörfer, Udo Diederichs, Matthew Bradfield, Melissa Mei Koenig, Kenneth J. Parker
-
Publication number: 20150369092Abstract: In a hydraulic valve comprising a spool, one or more band-shape check valves and an enclosing bolt or snout, the check valve may be compressed to the point of excessive wear or failure and may impede spool movement. The problem outlined is solved by an inventive hydraulic valve for use with a cam phasing apparatus of an internal combustion engine. The hydraulic valve comprises a hollow bolt or snout, check valves, and a spool disposed inside the bolt while still being able to shift axially within the bolt. The bolt and spool are configured to provide fluid passageways between the spool and the cam phasing apparatus depending on a translational displacement of the spool. Furthermore, the spool is configured to allow an oil flow through the fluid passageway, yet limit a compression of the band-type check valves.Type: ApplicationFiled: June 24, 2014Publication date: December 24, 2015Inventors: Kenneth J. Parker, John Snyder, Brian Sapp, Udo Diederichs, Melissa Mei Koenig
-
Patent number: 9115731Abstract: Disclosed is an exemplary hydraulic system including a first fluid circuit and a second fluid circuit. The hydraulic system further includes a first pump fluidly connected to the first fluid circuit and fluidly connectable to the second fluid circuit, and a second pump fluidly connectable to the first and second fluid circuits. The hydraulic system includes a first valve that may be arranged in a first position for fluidly disconnecting the first and second pumps from the second fluid circuit, a second position for fluidly connecting the second pump to the second fluid circuit and fluidly disconnecting the first pump from the second fluid circuit, and a third position for fluidly connecting the first and second pumps to the second fluid circuit.Type: GrantFiled: July 19, 2012Date of Patent: August 25, 2015Assignee: Eaton CorporationInventors: Adam C. Maurer, Jerry J. Brittan, Robert J. Kanda, Darren Firth, Melissa Mei Koenig
-
Publication number: 20150218976Abstract: An oscillating-motor camshaft adjuster which provides that, through software, camshaft alternating torque is utilized only in conditions where the torque is adequate and/or it is important to reduce flow consumption. If there is two step lift and the camshaft alternating torque is not adequate in low lift, software can position the spool to utilize some camshaft alternating torque while also tanking oil to speed up the phasing.Type: ApplicationFiled: February 6, 2014Publication date: August 6, 2015Inventors: Bernd Last, Gordon Neudörfer, Udo Diederichs, Matthew Bradfield, Melissa Mei Koenig, Kenneth J. Parker
-
Publication number: 20130098452Abstract: Disclosed is an exemplary hydraulic system including a first fluid circuit and a second fluid circuit. The hydraulic system further includes a first pump fluidly connected to the first fluid circuit and fluidly connectable to the second fluid circuit, and a second pump fluidly connectable to the first and second fluid circuits. The hydraulic system includes a first valve that may be arranged in a first position for fluidly disconnecting the first and second pumps from the second fluid circuit, a second position for fluidly connecting the second pump to the second fluid circuit and fluidly disconnecting the first pump from the second fluid circuit, and a third position for fluidly connecting the first and second pumps to the second fluid circuit.Type: ApplicationFiled: July 19, 2012Publication date: April 25, 2013Inventors: Adam C. Maurer, Jerry J. Brittan, Robert J. Kanda, Darren Firth, Melissa Mei Koenig
-
Patent number: 5997431Abstract: A continuously variable transmission control system determines the desired speed ratio for a continuously variable transmission from various input data received from the vehicle and operator. The desired speed ratio is compared with a commanded speed ratio to provide an error signal which establishes a new commanded speed ratio for the continuously variable transmission. The comparing process of desired speed ratio to commanded speed ratio is repeated until the error signal is substantially null. Also, the control provides an adaptive modifier for the actuator of the continuously variable transmission such that a comparison of actual transmission ratio to commanded speed ratio will determine if an adaptive modification is necessary. The control further provides a step control function which is operable when the ratio of the continuously variable transmission is moving toward an underdrive ratio.Type: GrantFiled: August 27, 1997Date of Patent: December 7, 1999Assignee: General Motors CorporationInventors: William Joseph Vukovich, Melissa Mei Koenig
-
Patent number: 5924954Abstract: A continuously variable transmission control system determines the desired speed ratio for a continuously variable transmission from various input data received from the vehicle and operator. The desired speed ratio is compared with a commanded speed ratio to provide an error signal which establishes a new commanded speed ratio for the continuously variable transmission. The comparing process of desired speed ratio to commanded speed ratio is repeated until the error signal is substantially null. Also, the control provides an adaptive modifier for the actuator of the continuously variable transmission such that a comparison of actual transmission ratio to commanded speed ratio will determine if an adaptive modification is necessary. The control further provides a step control function which is operable when the ratio of the continuously variable transmission is moving toward an underdrive ratio.Type: GrantFiled: August 27, 1997Date of Patent: July 20, 1999Assignee: General Motors CorporationInventors: William Joseph Vukovich, Melissa Mei Koenig
-
Patent number: 5879258Abstract: A shift control valve has a valve body in which is rotatably disposed a flow directing plate. Pressurized "drive" fluid is supplied to a control passage in the plate. The control passage communicates with a plurality of radial passages extending therefrom. Circumferential and axial passages communicating with the radial passages selectively direct fluid flow, through the valve body, from the control feed passage to friction device control passages to establish the engagement of friction devices. A plurality of exhaust passages control fluid flow for the disengagement of the friction devices. Supplemental axial feed passages are available to supply fluid pressure for the friction devices during selected ratios other than "drive".Type: GrantFiled: September 19, 1997Date of Patent: March 9, 1999Assignee: General Motors CorporationInventors: Paul Dwight Stevenson, Melissa Mei Koenig
-
Patent number: 5857162Abstract: A multi-ratio automatic transmission has a plurality of fluid operated clutching devices, a fluidic torque converter and a fluid operated torque converter clutch mechanism. During certain operational periods, a hot mode is invoked to eliminate certain heat sources and increase heat dissipation to thereby prevent the fluid temperature from exceeding a predetermined maximum temperature. The hot mode is invoked as a function of both the temperature of the transmission fluid and the rate of change of the fluid temperature.Type: GrantFiled: June 30, 1995Date of Patent: January 5, 1999Assignee: General Motors CorporationInventors: William Joseph Vukovich, Melissa Mei Koenig
-
Patent number: 5685799Abstract: A control for an automatic transmission minimizes shift cycling between adjacent speed ratios due to non-ideal load conditions such as grade climbing and trailering. The control utilizes shift schedule data in formulating a determination of the ability of the vehicle to maintain current levels of performance if an upshift were to occur and inhibits such upshifts where the determination so indicates an inability to meet the criteria.Type: GrantFiled: July 1, 1996Date of Patent: November 11, 1997Assignee: General Motors CorporationInventors: William Joseph Vukovich, Melissa Mei Koenig