Patents by Inventor Richard D. Muizelaar

Richard D. Muizelaar 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: 9145928
    Abstract: A transmission includes a main shaft, a first input shaft, a second input shaft, and a first clutch to drivingly couple the main shaft and the first input shaft. A second clutch drivingly couples the main shaft and the second input shaft. A torque converter is selectively driven by one of the first input shaft and a first speed gear set. The first speed gear set is driven by the other of the first input shaft and the torque converter. A second speed gear set is driven by the second input shaft.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: September 29, 2015
    Assignee: Magna Powertrain, Inc.
    Inventors: Jianwen Li, Richard D. Muizelaar
  • Patent number: 9097296
    Abstract: A one-way clutch assembly includes an inner race adapted to be fixed for rotation with a first rotatable member, an outer race having circumferentially spaced apart cam surfaces and being adapted to be fixed for rotation with a second rotatable member as well as a plurality of roller elements positioned therebetween. A plurality of circumferentially extending springs cooperate with the cage to align each roller element with the cam surfaces. The springs and cage urge the roller elements away from the inner race. A retaining mechanism captures lubricant in contact with the roller elements.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: August 4, 2015
    Assignee: MagnaPowertrain, Inc.
    Inventors: Jianwen Li, Sean Steele, Richard D. Muizelaar
  • Patent number: 9074646
    Abstract: A clutch assembly includes an inner race, an outer race and a plurality of roller elements positioned radially therebetween. The clutch assembly also includes a cage assembly, a seal and a retaining ring. The cage assembly includes a skeleton coupled to a spring ring having a plurality of radially extending guides arranged to circumferentially space apart each roller element in alignment with cam surfaces formed on the outer race. The guides are resiliently deformable to allow concurrent engagement of each roller element with both the inner and outer races. The seal engages an inner surface of the outer race and an outer surface of the inner race, and is positioned axially outboard of the roller elements. The retaining ring is positioned within ring grooves formed on each of the inner and outer races to restrict movement of the cage.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: July 7, 2015
    Assignee: Magna Powertrain Inc.
    Inventors: Sean Steele, Jianwen Li, John Sabo, Richard D. Muizelaar
  • Publication number: 20140033863
    Abstract: A transmission includes a main shaft, a first input shaft, a second input shaft, and a first clutch to drivingly couple the main shaft and the first input shaft. A second clutch drivingly couples the main shaft and the second input shaft. A torque converter is selectively driven by one of the first input shaft and a first speed gear set. The first speed gear set is driven by the other of the first input shaft and the torque converter. A second speed gear set is driven by the second input shaft.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Inventors: Jianwen Li, Richard D. Muizelaar
  • Patent number: 8640846
    Abstract: A wet clutch includes a rotatable hub and a rotatable drum having an aperture extending therethrough. A plurality of outer clutch plates are fixed for rotation with the drum. A plurality of inner clutch plates are fixed for rotation with the hub and interleaved with the outer clutch plates. A piston is moveable to apply a force to the inner and outer clutch plates to transfer torque between the hub and the drum. A cover is moveable relative to the drum between first and second positions. The cover selectively restricts a flow of fluid through the aperture in the drum when in the first position.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: February 4, 2014
    Assignee: Magna Powertrain Inc.
    Inventors: Richard D. Muizelaar, Sean Steele, Jianwen Li, Andrew Kowalski
  • Patent number: 8549943
    Abstract: A transmission includes a main shaft, a first input shaft, a second input shaft, and a first clutch to drivingly couple the main shaft and the first input shaft. A second clutch drivingly couples the main shaft and the second input shaft. A torque converter is selectively driven by one of the first input shaft and a first speed gear set. The first speed gear set is driven by the other of the first input shaft and the torque converter. A second speed gear set is driven by the second input shaft.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: October 8, 2013
    Assignee: Magna Powertrain Inc.
    Inventors: Jianwen Li, Richard D. Muizelaar
  • Publication number: 20130256081
    Abstract: A wet clutch includes a rotatable hub and a rotatable drum having an aperture extending therethrough. A plurality of outer clutch plates are fixed for rotation with the drum. A plurality of inner clutch plates are fixed for rotation with the hub and interleaved with the outer clutch plates. A piston is moveable to apply a force to the inner and outer clutch plates to transfer torque between the hub and the drum. A cover is moveable relative to the drum between first and second positions. The cover selectively restricts a flow of fluid through the aperture in the drum when in the first position.
    Type: Application
    Filed: June 3, 2013
    Publication date: October 3, 2013
    Inventors: Richard D. Muizelaar, Sean Steele, Jianwen Li, Andrew Kowalski
  • Patent number: 8459432
    Abstract: A wet clutch includes a rotatable hub and a rotatable drum having an aperture extending therethrough. A plurality of outer clutch plates are fixed for rotation with the drum. A plurality of inner clutch plates are fixed for rotation with the hub and interleaved with the outer clutch plates. A piston is moveable to apply a force to the inner and outer clutch plates to transfer torque between the hub and the drum. A cover is moveable relative to the drum between first and second positions. The cover selectively restricts a flow of fluid through the aperture in the drum when in the first position.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: June 11, 2013
    Assignee: Magna Powertrain, Inc.
    Inventors: Richard D. Muizelaar, Sean Steele, Jianwen Li, Andrew Kowalski
  • Patent number: 8240286
    Abstract: A starting system for an internal combustion engine includes a pinion gear selectively driven by a starter motor, a drive plate having a set of teeth in constant meshed engagement with the pinion gear and a one-way clutch adapted to interconnect the drive plate and an engine crankshaft. The clutch assembly includes an inner race adapted to be fixed for rotation with the crankshaft. An outer race is fixed for rotation with the drive plate and has circumferentially spaced apart cam surfaces. The clutch also includes a cage for positioning rollers in circumferentially spaced apart alignment with the cam surfaces. A pair of seal plates are coupled to one of the inner race and the outer race. Each seal plate is positioned proximate to and spaced apart from the other of the inner race and the outer race.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: August 14, 2012
    Assignee: Magna Powertrain Inc.
    Inventors: Jianwen Li, Richard D. Muizelaar, Sean Steele
  • Publication number: 20110168119
    Abstract: A clutch assembly includes an inner race, an outer race and a plurality of roller elements positioned radially therebetween. The clutch assembly also includes a cage assembly, a seal and a retaining ring. The cage assembly includes a skeleton coupled to a spring ring having a plurality of radially extending guides arranged to circumferentially space apart each roller element in alignment with cam surfaces formed on the outer race. The guides are resiliently deformable to allow concurrent engagement of each roller element with both the inner and outer races. The seal engages an inner surface of the outer race and an outer surface of the inner race, and is positioned axially outboard of the roller elements. The retaining ring is positioned within ring grooves formed on each of the inner and outer races to restrict movement of the cage.
    Type: Application
    Filed: September 15, 2009
    Publication date: July 14, 2011
    Applicant: MAGNA POWERTRAIN INC.
    Inventors: Sean Steele, Jianwen Li, John Sabo, Richard D. Muizelaar
  • Publication number: 20110168118
    Abstract: A starting system for an internal combustion engine includes a pinion gear selectively driven by a starter motor, a drive plate having a set of teeth in constant meshed engagement with the pinion gear and a one-way clutch adapted to interconnect the drive plate and an engine crankshaft. The clutch assembly includes an inner race adapted to be fixed for rotation with the crankshaft. An outer race is fixed for rotation with the drive plate and has circumferentially spaced apart cam surfaces. The clutch also includes a cage for positioning rollers in circumferentially spaced apart alignment with the cam surfaces. A pair of seal plates are coupled to one of the inner race and the outer race. Each seal plate is positioned proximate to and spaced apart from the other of the inner race and the outer race.
    Type: Application
    Filed: September 15, 2009
    Publication date: July 14, 2011
    Applicant: MAGNA POWERTRAIN INC.
    Inventors: Jianwen Li, Richard D. Muizelaar, Sean Steele
  • Publication number: 20110162933
    Abstract: A one-way clutch assembly includes an inner race adapted to be fixed for rotation with a first rotatable member, an outer race having circumferentially spaced apart cam surfaces and being adapted to be fixed for rotation with a second rotatable member as well as a plurality of roller elements positioned therebetween. A plurality of circumferentially extending springs cooperate with the cage to align each roller element with the cam surfaces. The springs and cage urge the roller elements away from the inner race. A retaining mechanism captures lubricant in contact with the roller elements.
    Type: Application
    Filed: September 15, 2009
    Publication date: July 7, 2011
    Applicant: MAGNA POWERTRAIN INC.
    Inventors: Jianwen Li, Sean Steele, Richard D. Muizelaar
  • Patent number: 7955178
    Abstract: A damper assembly has a torque input member configured to be connected to engine crankshaft through a torque limit clutch. An output member has a hub configured to be mounted to a transmission input shaft. Damping springs operatively interconnects the input member and output member, enabling the input member and output member to rotate relative to each other at some angular displacements before the input torque from engine crankshaft is completely transmitted to transmission input shaft. The damping springs includes a series of long springs and a series of relatively short spring. The long springs compress before the short compress as the input member rotates relative to the output member.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: June 7, 2011
    Assignee: MAGNA Powertrain, Inc.
    Inventors: Cheng Mu, Jaroslaw Lutoslawski, Richard D. Muizelaar, Fuzheng Hu
  • Publication number: 20110000757
    Abstract: A wet clutch includes a rotatable hub and a rotatable drum having an aperture extending therethrough. A plurality of outer clutch plates are fixed for rotation with the drum. A plurality of inner clutch plates are fixed for rotation with the hub and interleaved with the outer clutch plates. A piston is moveable to apply a force to the inner and outer clutch plates to transfer torque between the hub and the drum. A cover is moveable relative to the drum between first and second positions. The cover selectively restricts a flow of fluid through the aperture in the drum when in the first position.
    Type: Application
    Filed: December 15, 2008
    Publication date: January 6, 2011
    Inventors: Richard D. Muizelaar, Sean Steele, Jianwen Li, Andrew Kowalski
  • Patent number: 7798790
    Abstract: A variable displacement vane pump includes at least two regulation chambers to provide a regulating force to the cam ring to counter the force applied to the cam ring by a regulating spring and reduce pulsation in the output working fluid from the pump. A first regulation chamber is part of the pump outlet and is in fluid communication with the outlet port of the pump via a passage which allows the pump to be fabricated from a diecast process or the like. A second regulation chamber is connected to the first chamber via an orifice which reduces the pressure of working fluid supplied from the first chamber to the second. The pump outlet need not overlie the pump outlet. Further, a pump with an inlet port with a relatively large initial cross-sectional flow area inhibits cavitation of the working fluid when the pump is operated at higher operating speeds.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: September 21, 2010
    Assignee: Tesma International, Inc.
    Inventors: Jarek Lutoslawski, Richard D. Muizelaar
  • Publication number: 20100192725
    Abstract: A transmission includes a main shaft, a first input shaft, a second input shaft, and a first clutch to drivingly couple the main shaft and the first input shaft. A second clutch drivingly couples the main shaft and the second input shaft. A torque converter is selectively driven by one of the first input shaft and a first speed gear set. The first speed gear set is driven by the other of the first input shaft and the torque converter. A second speed gear set is driven by the second input shaft.
    Type: Application
    Filed: October 22, 2008
    Publication date: August 5, 2010
    Inventors: Jianwen Li, Richard D. Muizelaar
  • Publication number: 20090090593
    Abstract: A damper assembly has a torque input member configured to be connected to engine crankshaft through a torque limit clutch. An output member has a hub configured to be mounted to a transmission input shaft. Damping springs operatively interconnects the input member and output member, enabling the input member and output member to rotate relative to each other at some angular displacements before the input torque from engine crankshaft is completely transmitted to transmission input shaft. The damping springs includes a series of long springs and a series of relatively short spring. The long springs compress before the short compress as the input member rotates relative to the output member.
    Type: Application
    Filed: February 16, 2007
    Publication date: April 9, 2009
    Inventors: Cheng Mu, Jaroslaw Lutoslawski, Richard D. Muizelaar, Fuzheng Hu
  • Publication number: 20080247894
    Abstract: A variable displacement vane pump includes at least two regulation chambers to provide a regulating force to the cam ring, to counter the force applied to the cam ring by a regulating spring, to reduce pulsation in the output working fluid from the pump. A first one of the chambers is part of the pump outlet and is in fluid communication with the outlet port of the pump via a passage which allows the pump to be fabricated from a diecast process oath like. A second regulation chamber is connected to the first chamber via an orifice which reduces the pressure of working fluid supplied from the first chamber to the second. The configuration and design of pumps in accordance with the present invention allows for flexible packaging for the pump, as the outlet need not overlie the pump outlet. Further, a pump with an inlet port with a relatively large initial cross-sectional flow area is taught to inhibit cavitation of the working fluid when the pump is operated at higher operating speeds.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 9, 2008
    Applicant: Tesma International Inc.
    Inventors: Jarek Lutoslawski, Richard D. Muizelaar
  • Patent number: 7364018
    Abstract: An oil pump drive assembly for an automobile engine includes an oil pump and a drive shaft. The drive shaft is rotatably secured to the oil pump for actuating the oil pump in response to rotation of the drive shaft. The drive shaft extends between a pump end secured to the oil pump and a distal end. A sprocket is secured to the distal end of the drive shaft. A drive gear is secured to the drive shaft between the pump end and the distal end. A driven gear is engaged with the drive gear for rotation of the driven gear in response to rotation of the drive shaft. A balance shaft extends axially from the driven gear for rotation with the driven gear in response to rotation of the drive shaft for dampening vibrations associated with the operation of the automobile engine.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: April 29, 2008
    Assignee: Tesma International Inc.
    Inventors: David Mark Pascoe, Richard D. Muizelaar
  • Publication number: 20040216956
    Abstract: An oil pump drive assembly for an automobile engine includes an oil pump and a drive shaft. The drive shaft is rotatably secured to the oil pump for actuating the oil pump in response to rotation of the drive shaft. The drive shaft extends between a pump end secured to the oil pump and a distal end. A sprocket is secured to the distal end of the drive shaft. A drive gear is secured to the drive shaft between the pump end and the distal end. A driven gear is engaged with the drive gear for rotation of the driven gear in response to rotation of the drive shaft. A balance shaft extends axially from the driven gear for rotation with the driven gear in response to rotation of the drive shaft for dampening vibrations associated with the operation of the automobile engine.
    Type: Application
    Filed: January 30, 2004
    Publication date: November 4, 2004
    Inventors: David Mark Pascoe, Richard D. Muizelaar