Patents by Inventor Sainan Feng
Sainan Feng 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).
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Publication number: 20230213064Abstract: A steer-by-wire steering system for a vehicle includes a rack moveable in an axial direction, the rack having a bushing engagement portion comprising an outer surface including a plurality of rack flat surfaces. The steering system also includes an anti-rotation bushing disposed proximate an outer surface of the rack at the bushing engagement portion of the rack, the anti-rotation bushing having a plurality of bushing flat surfaces, wherein the number of the plurality of rack flat surfaces and the number of the plurality of bushing flat surfaces is identical.Type: ApplicationFiled: January 4, 2022Publication date: July 6, 2023Inventors: Sainan Feng, Brian Magnus, Josh Mullins
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Publication number: 20220402543Abstract: A steering seal diagnostic system includes a steering linkage that is operatively connectable to a pair of road wheels. The steering seal diagnostic system also includes a sealed compartment containing at least a portion of the steering linkage. The steering seal diagnostic system further includes a pressure sensor positioned to detect an internal pressure within the sealed compartment over a range of travel of the steering linkage, wherein a pressure change lower than a pressure change threshold indicates a leak condition of the sealed compartment.Type: ApplicationFiled: June 1, 2022Publication date: December 22, 2022Inventors: Kevin J. Haubenstricker, Kevin M. McClendon, Sainan Feng, Robert D. Bazela
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Patent number: 8083431Abstract: Magnetic ring systems for attachment to a shaft and methods of making and using are provided. According to an embodiment, a magnetic ring system for attachment to a shaft comprises: a magnetic ring; and an adaptor configured to fit inside the magnetic ring, the adaptor comprising an inner wall spaced from an outer wall, wherein the inner wall comprises a plurality of grooves for engaging the shaft.Type: GrantFiled: April 15, 2008Date of Patent: December 27, 2011Inventors: Sainan Feng, Mohammad Islam, Matthew W. Mielke, Christian Ross
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Patent number: 7639004Abstract: An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly. The apparatus includes a flux collector arrangement having first and second collectors positioned adjacent the first and second stator plates, respectively, forming a gap. A sensing device disposed within the gap senses a magnetic flux of the magnetic field.Type: GrantFiled: July 23, 2007Date of Patent: December 29, 2009Assignee: GM Global Technology Operations, Inc.Inventors: Mohammed R. Islam, Mohammad S. Islam, Matthew W Mielke, Tomy Sebastian, Sainan Feng
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Publication number: 20090027045Abstract: An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly. The apparatus includes a flux collector arrangement having first and second collectors positioned adjacent the first and second stator plates, respectively, forming a gap. A sensing device disposed within the gap senses a magnetic flux of the magnetic field.Type: ApplicationFiled: July 23, 2007Publication date: January 29, 2009Inventors: Mohammed R. Islam, Mohammad S. Islam, Matthew W Mielke, Tomy Sebastian, Sainan Feng
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Patent number: 7455321Abstract: A collapsible steering column assembly preferably has a collapsible steering shaft that extends rotatably along a centerline and a collapsible column that houses and co-extends with the shaft. The column preferably has inner and outer jackets that retract axially to collapse the column. An energy absorbing device has a member engaged between the inner and outer jackets and controls the collapse of the column generally via a high load stage and a low load stage of operation. The member is preferably elongated axially having a distal end that is looped over and spaced radially outward from the remainder of the member. The distal end is attached disengagably to the outer jacket via a pin received in a hole in the distal end and a fuse engaged operably to the pin and attached to the outer jacket.Type: GrantFiled: February 22, 2007Date of Patent: November 25, 2008Assignee: Delphi Technologies, Inc.Inventors: Ratko Menjak, Karen A. Boswell, Sainan Feng, James P. Kelly, Brian J. Magnus, Wayne M. Steverson
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Publication number: 20080254901Abstract: Magnetic ring systems for attachment to a shaft and methods of making and using are provided. According to an embodiment, a magnetic ring system for attachment to a shaft comprises: a magnetic ring; and an adaptor configured to fit, inside the magnetic ring, the adaptor comprising an inner wall spaced from an outer wall, wherein the inner wall comprises a plurality of grooves for engaging the shaft.Type: ApplicationFiled: April 15, 2008Publication date: October 16, 2008Applicant: DELPHI TECHNOLOGIES, INC.Inventors: Sainan Feng, Mohammad Islam, Matthew W. Mielke, Christian Ross
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Publication number: 20070194563Abstract: A collapsible steering column assembly preferably has a collapsible steering shaft that extends rotatably along a centerline and a collapsible column that houses and co-extends with the shaft. The column preferably has inner and outer jackets that retract axially to collapse the column. An energy absorbing device has a member engaged between the inner and outer jackets and controls the collapse of the column generally via a high load stage and a low load stage of operation. The member is preferably elongated axially having a distal end that is looped over and spaced radially outward from the remainder of the member. The distal end is attached disengagably to the outer jacket via a pin received in a hole in the distal end and a fuse engaged operably to the pin and attached to the outer jacket.Type: ApplicationFiled: February 22, 2007Publication date: August 23, 2007Inventors: Ratko Menjak, Karen A. Boswell, Sainan Feng, James P. Kelly, Brian J. Magnus, Wayne M. Steverson
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Patent number: 7188533Abstract: An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The upper and lower surfaces are parallel. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The first and second stator plates form a gap between the lower surface of the first stator plate and the upper surface of the second stator plate. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly and a sensing device disposed within the gap for sensing a magnetic flux of the magnetic field.Type: GrantFiled: April 8, 2005Date of Patent: March 13, 2007Assignee: Delphi Technologies, Inc.Inventors: Eric D Pattok, Mohammad S Islam, Matthew W Mielke, Sainan Feng, Ryan J Pavlawk, Tomy Sebastian, Christian E Ross
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Patent number: 7174795Abstract: An integrated torque and position sensor is set forth for measuring the relative rotational movement between an input and an output shaft and for measuring the final angle position of the output shaft. The integrated sensor includes a wheel that rotates with the shaft. An incremental sensing mechanism detects the incremental rotation of the shaft. In response to the shaft rotating to a predetermined angle, an actuation mechanism engages the wheel with a change gear for every new revolution in which the shaft passes. A segment sensing mechanism detects the segment in which the shaft is disposed. A method is set forth to calibrate and compensate the electrical outputs generated by the integrated torque and position sensor. The method produces common amplitudes and establishes a common angle with an expected phase angle shift for the electrical outputs.Type: GrantFiled: January 14, 2005Date of Patent: February 13, 2007Assignee: Delphi Technologies, Inc.Inventors: Sainan Feng, Mohammad Islam, Matthew W. Mielke, Christian Ross, Tomy Sebastian, Eric Pattok, Ryan Pavlawk, Samuel El-Nashef, Alan C. Davis, Harley D. Burkhard
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Patent number: 7021160Abstract: An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The upper and lower surfaces are parallel. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The first and second stator plates form a gap between the lower surface of the first stator plate and the upper surface of the second stator plate. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly and a sensing device disposed within the gap for sensing a magnetic flux of the magnetic field.Type: GrantFiled: March 8, 2004Date of Patent: April 4, 2006Assignee: Delphi Technologies, Inc.Inventors: Eric D. Pattok, Mohammad S. Islam, Matthew W. Mielke, Sainan Feng, Ryan J. Pavlawk, Tomy Sebastian, Christian E. Ross
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Publication number: 20050172727Abstract: An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The upper and lower surfaces are parallel. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The first and second stator plates form a gap between the lower surface of the first stator plate and the upper surface of the second stator plate. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly and a sensing device disposed within the gap for sensing a magnetic flux of the magnetic field.Type: ApplicationFiled: April 8, 2005Publication date: August 11, 2005Applicant: Delphi Technologies, Inc.Inventors: Eric Pattok, Mohammad Islam, Matthew Mielke, Sainan Feng, Ryan Pavlawk, Tomy Sebastian, Christian Ross
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Publication number: 20050172732Abstract: An integrated torque and position sensor is set forth for measuring the relative rotational movement between an input and an output shaft and for measuring the final angle position of the output shaft. The integrated sensor includes a wheel that rotates with the shaft. An incremental sensing mechanism detects the incremental rotation of the shaft. In response to the shaft rotating to a predetermined angle, an actuation mechanism engages the wheel with a change gear for every new revolution in which the shaft passes. A segment sensing mechanism detects the segment in which the shaft is disposed. A method is set forth to calibrate and compensate the electrical outputs generated by the integrated torque and position sensor. The method produces common amplitudes and establishes a common angle with an expected phase angle shift for the electrical outputs.Type: ApplicationFiled: January 14, 2005Publication date: August 11, 2005Inventors: Sainan Feng, Mohammad Islam, Matthew Mielke, Christian Ross, Tomy Sebastian, Eric Pattok, Ryan Pavlawk, Samuel El-Nashef, Alan Davis, Harley Burkhard
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Publication number: 20040250631Abstract: An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The upper and lower surfaces are parallel. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The first and second stator plates form a gap between the lower surface of the first stator plate and the upper surface of the second stator plate. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly and a sensing device disposed within the gap for sensing a magnetic flux of the magnetic field.Type: ApplicationFiled: March 8, 2004Publication date: December 16, 2004Inventors: Eric D. Pattok, Mohammad S. Islam, Matthew W. Mielke, Sainan Feng, Ryan J. Pavlawk, Tomy Sebastian, Christian E. Ross