Patents by Inventor Bruce Geist
Bruce Geist 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: 9726056Abstract: In at least one implementation, an engine oil circuit for a vehicle includes first and second oil circuits, and first and second oil pumps. The first oil circuit is communicated with at least one first engine component and the first oil pump is communicated with the first oil circuit to supply fluid flow in the first oil circuit at a first flow rate and a first pressure. The second oil circuit is communicated with at least one second engine component and may be segregated from the first oil circuit. The second oil pump is communicated with the second oil circuit to supply fluid flow in the second oil circuit at a second flow rate and a second pressure. At least one of the second flow rate or the second pressure is different than the first flow rate or the first pressure.Type: GrantFiled: May 21, 2012Date of Patent: August 8, 2017Assignee: FCA US LLCInventors: William F. Resh, Wei Tao, Bruce Geist
-
Patent number: 9605707Abstract: A crankshaft assembly for an internal combustion engine can include a crankshaft having a lobe with a pendulum absorber coupled thereto. The pendulum absorber can include a carrier, a pendulum, a pin and a centrifugal switch assembly. The carrier can be coupled to a body of the lobe and can have an opening therein. The pendulum can have an opening therein and the pin can extend through the pendulum opening and the carrier opening to pivotably couple the pendulum to the carrier. The switch assembly can be slidably positioned in a bore of the body and can have a lock member configured to selectively engage the pendulum based on a centrifugal force being below a predetermined threshold to lock movement of the pendulum relative to the carrier.Type: GrantFiled: August 14, 2014Date of Patent: March 28, 2017Assignee: FCA US LLCInventors: Ian S Glanfield, Bruce Geist
-
Patent number: 9429047Abstract: A computer-implemented method can include receiving a contact point path between a rocker arm pad and a valve tip. The method can include adjusting the contact point path to obtain a modified contact point path that satisfies a design objective of decreased valve tip wear or decreased valve tick. The method can include determining and outputting a custom contour for the rocker arm pad and the camshaft lobe based on the modified contact point path. The custom contoured camshaft lobe can companion with the custom contoured rocker arm pad to produce the modified contact point path for the specified design objective.Type: GrantFiled: November 11, 2013Date of Patent: August 30, 2016Assignee: FCA US LLCInventors: Bruce Geist, Scott K Fisher, William F Resh, Mark S Hannon, Christopher L Allmond
-
Patent number: 9322454Abstract: A crankshaft can include a pendulum absorber and a retention arrangement. The pendulum absorber can include a carrier, a pendulum and a pin. The carrier can be coupled to a lobe and can have an opening. The pendulum can have an opening and the pin can be received in the openings to couple the pendulum to the carrier. The retention arrangement can include a retention flange and a retention pin. The retention flange can extend from the carrier or lobe. The retention pin can be coupled to the pendulum. The retention arrangement can maintain the retention pin in spaced relation to the retention surface during movement of the pendulum when the pin maintains the pendulum coupled to the carrier, and can retain the pendulum relative to the carrier through engagement of the retention pin and retention surface in an absence of the pin maintaining the pendulum coupled to the carrier.Type: GrantFiled: October 1, 2013Date of Patent: April 26, 2016Assignee: FCA US LLCInventors: Ian S Glanfield, Bruce Geist, John Bortell, Edward A Luibrand
-
Patent number: 9174645Abstract: The present disclosure provides systems and methods to detect and reduce any high driveline torsional levels, such as due to the cylinder deactivation in variable displacement system engines or aggressive lock-up strategies for fuel efficiency, in automobile transmissions. The present disclosure utilizes a controller in an automobile to operate a computationally thrifty method for quickly detecting noise and vibration disturbances in the transmission. This quick detection enables fuel economic calibrations that aggressively reduce the disturbances by controlling slip in a launch device of the transmission. As problem disturbances arise, they are detected before occupants notice objectionable behavior. Once detected, the disturbances are reduced, such as by increasing launch device slip, which effectively intercepts the objectionable disturbances before they are transferred through the entire drivetrain.Type: GrantFiled: May 17, 2007Date of Patent: November 3, 2015Assignee: FCA US LLCInventors: Brian E. Beechie, Thomas F. Wentworth, Gregory A. Sbroglia, Bruce Geist, Mark C. Azzaretti, Marc H. Sullivan, In-Soo Suh, Mark J. Duty, Changwei Cao
-
Patent number: 9032837Abstract: A pendulum absorber system attenuates torsional vibrations within a drive train of a vehicle. The system can be incorporated between an engine and an automatic transmission, for example, within a flex plate assembly attached to an engine's crankshaft, within a pump housing cover of a torque converter, or as a stand-alone unit between a flex plate assembly and a torque converter. The system includes at least one pendulum weight that dynamically moves along a predetermined path in response to variations in rotational velocities of a housing of the system and that is tuned to attenuate excitation of torsional vibrations within the drive train. A limiter assembly, which can include multiple limiters, is provided within the system for stopping movement of the weight when it reaches endpoints of the predetermined path, by mechanically impeding further movement at both of a first and second end of the weight.Type: GrantFiled: August 5, 2009Date of Patent: May 19, 2015Assignee: Chrysler Group LLCInventors: James R. Klotz, Bruce Geist, Jerry P. Harkey
-
Publication number: 20150128887Abstract: A computer-implemented method can include receiving a contact point path between a rocker arm pad and a valve tip. The method can include adjusting the contact point path to obtain a modified contact point path that satisfies a design objective of decreased valve tip wear or decreased valve tick. The method can include determining and outputting a custom contour for the rocker arm pad and the camshaft lobe based on the modified contact point path. The custom contoured camshaft lobe can companion with the custom contoured rocker arm pad to produce the modified contact point path for the specified design objective.Type: ApplicationFiled: November 11, 2013Publication date: May 14, 2015Inventors: Bruce Geist, Scott K. Fisher, William F. Resh, Mark S. Hannon, Christopher L. Allmond
-
Publication number: 20150090073Abstract: A crankshaft can include a pendulum absorber and a retention arrangement. The pendulum absorber can include a carrier, a pendulum and a pin. The carrier can be coupled to a lobe and can have an opening. The pendulum can have an opening and the pin can be received in the openings to couple the pendulum to the carrier. The retention arrangement can include a retention flange and a retention pin. The retention flange can extend from the carrier or lobe. The retention pin can be coupled to the pendulum. The retention arrangement can maintain the retention pin in spaced relation to the retention surface during movement of the pendulum when the pin maintains the pendulum coupled to the carrier, and can retain the pendulum relative to the carrier through engagement of the retention pin and retention surface in an absence of the pin maintaining the pendulum coupled to the carrier.Type: ApplicationFiled: October 1, 2013Publication date: April 2, 2015Inventors: Ian S Glanfield, Bruce Geist, John Bortell, Edward A Luibrand
-
Publication number: 20150047461Abstract: A crankshaft assembly for an internal combustion engine can include a crankshaft having a lobe with a pendulum absorber coupled thereto. The pendulum absorber can include a carrier, a pendulum, a pin and a centrifugal switch assembly. The carrier can be coupled to a body of the lobe and can have an opening therein. The pendulum can have an opening therein and the pin can extend through the pendulum opening and the carrier opening to pivotably couple the pendulum to the carrier. The switch assembly can be slidably positioned in a bore of the body and can have a lock member configured to selectively engage the pendulum based on a centrifugal force being below a predetermined threshold to lock movement of the pendulum relative to the carrier.Type: ApplicationFiled: August 14, 2014Publication date: February 19, 2015Inventors: Ian S. Glanfield, Bruce Geist
-
Patent number: 8839693Abstract: A pendulum absorber assembly for a torque converter including a first spring retainer, a second spring retainer, and a floating flange positioned between the first spring retainer and the second spring retainer. The pendulum absorber assembly also includes a drive plate affixed to the floating flange, a plurality of arcuate springs disposed between the second spring retainer and the drive plate, and a plurality of pendulum weights affixed to the second spring retainer, wherein at least one of the pendulum weights is made of tungsten alloy.Type: GrantFiled: August 2, 2013Date of Patent: September 23, 2014Assignee: Chrysler Group LLCInventors: Marvin G. Schiemann, Michael Fingerman, Tomasz K. Kietlinski, Bruce Geist
-
Patent number: 8813604Abstract: An apparatus for damping vibrations in an internal combustion engine. The apparatus includes a crankshaft with a lobe. The lobe has a flange with an opening that is coupled to the body of the lobe. A pendulum is pivotally coupled to the flange in a manner to allow the pendulum to follow an epicycloidal path of movement.Type: GrantFiled: October 20, 2011Date of Patent: August 26, 2014Assignee: Chrysler Group LLCInventors: Bruce Geist, Christopher S. Barron, William F. Resh, Md Imran Hossain, Michael P. Patyi, Stan M. Mashkevich
-
Publication number: 20140047945Abstract: A pendulum absorber assembly for a torque converter including a first spring retainer, a second spring retainer, and a floating flange positioned between the first spring retainer and the second spring retainer. The pendulum absorber assembly also includes a drive plate affixed to the floating flange, a plurality of arcuate springs disposed between the second spring retainer and the drive plate, and a plurality of pendulum weights affixed to the second spring retainer, wherein at least one of the pendulum weights is made of tungsten alloy.Type: ApplicationFiled: August 2, 2013Publication date: February 20, 2014Inventors: Marvin G Schiemann, Michael Fingerman, Tomasz K Kietlinski, Bruce Geist
-
Publication number: 20130306022Abstract: In at least one implementation, an engine oil circuit for a vehicle includes first and second oil circuits, and first and second oil pumps. The first oil circuit is communicated with at least one first engine component and the first oil pump is communicated with the first oil circuit to supply fluid flow in the first oil circuit at a first flow rate and a first pressure. The second oil circuit is communicated with at least one second engine component and may be segregated from the first oil circuit. The second oil pump is communicated with the second oil circuit to supply fluid flow in the second oil circuit at a second flow rate and a second pressure. At least one of the second flow rate or the second pressure is different than the first flow rate or the first pressure.Type: ApplicationFiled: May 21, 2012Publication date: November 21, 2013Applicant: CHRYSLER GROUP LLCInventors: William F. Resh, Wei Tao, Bruce Geist
-
Patent number: 8561499Abstract: A pendulum absorber assembly for a torque converter including a first spring retainer, a second spring retainer, and a floating flange positioned between the first spring retainer and the second spring retainer. The pendulum absorber assembly also includes a drive plate affixed to the floating flange, a plurality of arcuate springs disposed between the second spring retainer and the drive plate, and a plurality of pendulum weights affixed to the second spring retainer, wherein the pendulum weights are made of tungsten alloy.Type: GrantFiled: August 17, 2012Date of Patent: October 22, 2013Assignee: Chrysler Group LLCInventors: Marvin G. Schiemann, Michael Fingerman, Tomaxz K. Kietlinski, Bruce Geist
-
Publication number: 20130098198Abstract: An apparatus for damping vibrations in an internal combustion engine. The apparatus includes a crankshaft with a lobe. The lobe has a flange with an opening that is coupled to the body of the lobe. A pendulum is pivotally coupled to the flange in a manner to allow the pendulum to follow an epicycloidal path of movement.Type: ApplicationFiled: October 20, 2011Publication date: April 25, 2013Applicant: CHRYSLER GROUP LLCInventors: Bruce Geist, Christopher S. Barron, William F. Resh, Md Imran Hossain, Michael P. Patyi, Stan M. Mashkevich
-
Publication number: 20110031058Abstract: A pendulum absorber system attenuates torsional vibrations within a drive train of a vehicle. The system can be incorporated between an engine and an automatic transmission, for example, within a flex plate assembly attached to an engine's crankshaft, within a pump housing cover of a torque converter, or as a stand-alone unit between a flex plate assembly and a torque converter. The system includes at least one pendulum weight that dynamically moves along a predetermined path in response to variations in rotational velocities of a housing of the system and that is tuned to attenuate excitation of torsional vibrations within the drive train. A limiter assembly, which can include multiple limiters, is provided within the system for stopping movement of the weight when it reaches endpoints of the predetermined path, by mechanically impeding further movement at both of a first and second end of the weight.Type: ApplicationFiled: August 5, 2009Publication date: February 10, 2011Inventors: James R. Klotz, Bruce Geist, Jerry P. Harkey
-
Publication number: 20080288146Abstract: The present disclosure provides systems and methods to detect and reduce any high driveline torsional levels, such as due to the cylinder deactivation in variable displacement system engines or aggressive lock-up strategies for fuel efficiency, in automobile transmissions. The present disclosure utilizes a controller in an automobile to operate a computationally thrifty method for quickly detecting noise and vibration disturbances in the transmission. This quick detection enables fuel economic calibrations that aggressively reduce the disturbances by controlling slip in a launch device of the transmission. As problem disturbances arise, they are detected before occupants notice objectionable behavior. Once detected, the disturbances are reduced, such as by increasing launch device slip, which effectively intercepts the objectionable disturbances before they are transferred through the entire drivetrain.Type: ApplicationFiled: May 17, 2007Publication date: November 20, 2008Inventors: Brian E. Beechie, Thomas F. Wentworth, Gregory A. Sbroglia, Bruce Geist, Mark C. Azzaretti, Marc H. Sullivan, In-Soo Suh, Mark J. Duty, Changwei Cao
-
Patent number: 7421325Abstract: Automated calibration of an automatic transmission design generates upshift scheduling curves in a throttle level/transmission output speed plane based upon laboratory-generated data and user generated drivability data. Downshift scheduling curves and torque converter lock-up and unlock curves are then generated as offsets from breakpoints on corresponding upshift curves, the offsets determined principally from the drivability data.Type: GrantFiled: April 1, 2005Date of Patent: September 2, 2008Assignee: Chrysler LLCInventors: Bruce Geist, Pradeep Attibele, Javed Dada, John M Rzepecki, II, Alexander Dolpp, David Parenti, William F Resh
-
Patent number: 7136789Abstract: A method for generating an acceleration profile for a valve operating cam of an internal combustion engine varies an adjustment point of an initial draft acceleration profile curve such that a determinant of a set of equations defining valve motion constraints and scaling factors is forced to zero. The equations may then be solved for values of the scaling factors which are applied to the initial draft acceleration profile curve to generate a desired profile which satisfies valve motion constraints.Type: GrantFiled: August 26, 2003Date of Patent: November 14, 2006Assignee: DaimlerChrysler CorporationInventors: Ronald G. Mosier, Bruce Geist, William F Resh
-
Publication number: 20060224291Abstract: Automated calibration of an automatic transmission design generates upshift scheduling curves in a throttle level/transmission output speed plane based upon laboratory-generated data and user generated drivability data. Downshift scheduling curves and torque converter lock-up and unlock curves are then generated as offsets from breakpoints on corresponding upshift curves, the offsets determined principally from the drivability data.Type: ApplicationFiled: April 1, 2005Publication date: October 5, 2006Inventors: Bruce Geist, Pradeep Attibele, Javed Dada, John Rzepecki, Alexander Dolpp, David Parenti, William Resh