Patents by Inventor Jeffrey A. Oesch

Jeffrey A. Oesch 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).

  • Publication number: 20210054925
    Abstract: A hydraulic control unit comprising a central accumulator, a flow path connected to the accumulator, a reservoir sharing a fluid space with the accumulator, a pump, and a controllable valve. The flow path is integrally formed to comprise a first flow path and a second flow path. The pump is connected to the accumulator via the first flow path on a first side of the accumulator. The pump is further connected to the reservoir via an inlet flow path on the first side of the accumulator. The controllable valve is connected to the accumulator via the second flow path on a second side of the accumulator.
    Type: Application
    Filed: April 17, 2019
    Publication date: February 25, 2021
    Applicant: Eaton Intelligent Power Limited
    Inventors: Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: 10907714
    Abstract: A method of providing limited slip in a differential assembly includes interconnecting an axle and a differential assembly through a first slippable linkage. The axle is driven in rotation with a first housing of the differential assembly operable to be driven in rotation by a ring gear. A plurality of pinion gears of the differential assembly are positioned in the first housing and are driven in rotation by the first housing. A side gear is fixed to the axle and is meshed with at least some of the pinion gears. The axle is operable to slip relative to the first housing. The first housing, the plurality of pinion gears and the side gear are enclosed within a second housing. The axle extends from a first end positioned within both of the first housing and the second housing to a second end positioned outside of both of the first housing and the second housing.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: February 2, 2021
    Assignee: Eaton Corporation
    Inventors: Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: 10774912
    Abstract: An electronic limited slip coupling constructed in accordance to one example of the present disclosure includes a sleeve, a support shaft, a hydraulic control unit, a clutch assembly and a case. The sleeve has a first set of splines projecting inwardly and meshed for engagement with an axle. The support shaft has a second set of splines configured to mesh with a first housing of a differential assembly. The hydraulic control unit has an accumulator housing and a motor. The motor is configured to pump fluid into an accumulator chamber of the accumulator housing. The clutch assembly receives fluid from the hydraulic control unit. The clutch assembly has a clutch pack positioned between a clutch piston and a portion of a clutch basket. The clutch assembly is operable to selectively interlock the sleeve and the support shaft. The case supports the electronic limited slip coupling as an assembled unit.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: September 15, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Andrew N. Edler, Randal James Graves, Jeffrey A. Oesch
  • Publication number: 20200200192
    Abstract: A hydraulic control unit that delivers hydraulic fluid to a limited slip differential includes a hydraulic control unit housing, a motor and a pump. The hydraulic control unit housing has a manifold housing portion and an accumulator housing portion. The manifold housing portion defines a fluid pathway arrangement for communicating fluid along at least a first fluid pathway. The accumulator housing portion houses an accumulator assembly having a biasing assembly and a piston. The accumulator housing portion and manifold housing portion cooperate to form an accumulator chamber that houses the biasing assembly. The motor is disposed on the first side of the manifold housing portion. The pump is disposed on a second side of the manifold portion, opposite the first side. The pump is configured to pump fluid into the accumulator chamber of the accumulator housing portion.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Applicant: Eaton Intelligent Power Llimited
    Inventors: Matthew G. Fox, Jeffrey A. Oesch, Andrew N. Edler
  • Patent number: 10527147
    Abstract: A differential gear mechanism constructed in accordance to one example of the present disclosure can include a differential case, a clutch pack and a plurality of lock pins. The differential case can include a first differential case portion that defines a first output shaft opening and includes a plurality of clutch ear guides and a plurality of lock pin engaging surfaces. The clutch pack can include a plurality of annular plates that are interleaved between a plurality of annular friction disks. At least one of the annular plates and annular friction disks can include a plurality of radially extending plate ears that are received by the corresponding plurality of clutch ear guides. The plurality of lock pins can be received by the plurality of first lock pin engaging surfaces of the first differential case at locations in-line with the clutch ear guides.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: January 7, 2020
    Assignee: Eaton Corporation
    Inventors: Matthew G. Fox, Jeffrey A. Oesch
  • Publication number: 20190301583
    Abstract: A hydraulic control unit that delivers hydraulic fluid to a limited slip differential includes a hydraulic control unit housing, a sump and a motor. The hydraulic control unit housing has an accumulator housing portion that houses a biasing assembly and a piston. The sump is defined in the hydraulic control unit housing and at least partially occupies a common space with the accumulator housing portion. The motor is configured to pump fluid into an accumulator chamber of the accumulator housing portion. The fluid pumped into the accumulator housing portion at least partially collapses the biasing assembly and introduces a pre-charge into the hydraulic control unit. The biasing assembly is configured to expand and urge the piston in a first direction resulting in fluid being communicated from the hydraulic control unit and into the limited slip differential.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Inventors: Daniel P. Fisher, Andrew N. Edler, Scott M. Besemer, Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: 10330187
    Abstract: A hydraulic control unit that delivers hydraulic fluid to a limited slip differential includes a hydraulic control unit housing, a sump and a motor. The hydraulic control unit housing has an accumulator housing portion that houses a biasing assembly and a piston. The sump is defined in the hydraulic control unit housing and at least partially occupies a common space with the accumulator housing portion. The motor is configured to pump fluid into an accumulator chamber of the accumulator housing portion. The fluid pumped into the accumulator housing portion at least partially collapses the biasing assembly and introduces a pre-charge into the hydraulic control unit. The biasing assembly is configured to expand and urge the piston in a first direction resulting in fluid being communicated from the hydraulic control unit and into the limited slip differential.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 25, 2019
    Assignee: Eaton Corporation
    Inventors: Daniel P. Fisher, Andrew N. Edler, Scott M. Besemer, Jeffrey A. Oesch, Matthew G. Fox
  • Publication number: 20190170234
    Abstract: An electronic limited slip coupling constructed in accordance to one example of the present disclosure includes a sleeve, a support shaft, a hydraulic control unit, a clutch assembly and a case. The sleeve has a first set of splines projecting inwardly and meshed for engagement with an axle. The support shaft has a second set of splines configured to mesh with a first housing of a differential assembly. The hydraulic control unit has an accumulator housing and a motor. The motor is configured to pump fluid into an accumulator chamber of the accumulator housing. The clutch assembly receives fluid from the hydraulic control unit. The clutch assembly has a clutch pack positioned between a clutch piston and a portion of a clutch basket. The clutch assembly is operable to selectively interlock the sleeve and the support shaft. The case supports the electronic limited slip coupling as an assembled unit.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicant: Eaton Intelligent Power Limited
    Inventors: Andrew N. Edler, Randal James Graves, Jeffrey A. Oesch
  • Publication number: 20180291994
    Abstract: A method of providing limited slip in a differential assembly includes interconnecting an axle and a differential assembly through a first slippable linkage. The axle is driven in rotation with a first housing of the differential assembly operable to be driven in rotation by a ring gear. A plurality of pinion gears of the differential assembly are positioned in the first housing and are driven in rotation by the first housing. A side gear is fixed to the axle and is meshed with at least some of the pinion gears. The axle is operable to slip relative to the first housing. The first housing, the plurality of pinion gears and the side gear are enclosed within a second housing. The axle extends from a first end positioned within both of the first housing and the second housing to a second end positioned outside of both of the first housing and the second housing.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Inventors: Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: 10001202
    Abstract: A limited slip differential assembly can include a sleeve, a support shaft, and a clutch assembly. The sleeve can have a sleeve aperture centered on and extending along an axis. The sleeve can also have a first set of splines projecting inwardly from the sleeve aperture. The sleeve can be operable to engage an axle through the first set of splines. The support shaft can have an outer surface, a support shaft aperture centered on and extending along the axis, and a second set of splines projecting from the outer surface. The support shaft can be adjacent to the sleeve along the axis and be operable to encircle and freely rotate relative to the axle. The clutch assembly can be operable to selectively interlock the sleeve and the support shaft.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: June 19, 2018
    Assignee: Eaton Corporation
    Inventors: Jeffrey A. Oesch, Matthew G. Fox
  • Publication number: 20180031101
    Abstract: A differential gear mechanism constructed in accordance to one example of the present disclosure can include a differential case, a clutch pack and a plurality of lock pins. The differential case can include a first differential case portion that defines a first output shaft opening and includes a plurality of clutch ear guides and a plurality of lock pin engaging surfaces. The clutch pack can include a plurality of annular plates that are interleaved between a plurality of annular friction disks. At least one of the annular plates and annular friction disks can include a plurality of radially extending plate ears that are received by the corresponding plurality of clutch ear guides. The plurality of lock pins can be received by the plurality of first lock pin engaging surfaces of the first differential case at locations in-line with the clutch ear guides.
    Type: Application
    Filed: October 9, 2017
    Publication date: February 1, 2018
    Applicant: Eaton Corporation
    Inventors: Matthew G. Fox, Jeffrey A. Oesch
  • Patent number: 9791031
    Abstract: A differential gear mechanism constructed in accordance to one example of the present disclosure can include a differential casing having a first case housing portion and a second case housing portion. The first and second case housing portions can be coupled together with fasteners. A first and a second side gear can be rotatably mounted within the differential casing. A plurality of pinion gears can be mounted between the first and second side gears. Each of the plurality of pinion gears can be rotatably mounted on a respective pinion gear shaft. Each pinion gear shaft can have first and second ends. The first end of each pinion gear shaft can be aligned with a fastener of the plurality of fasteners such that axial movement of the respective pinion gear shafts is inhibited by contact with a corresponding fastener of the plurality of fasteners.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: October 17, 2017
    Assignee: Eaton Corporation
    Inventors: Matthew G. Fox, Jeffrey A. Oesch
  • Publication number: 20170114881
    Abstract: A differential gear mechanism constructed in accordance to one example of the present disclosure can include a differential casing having a first case housing portion and a second case housing portion. The first and second case housing portions can be coupled together with fasteners. A first and a second side gear can be rotatably mounted within the differential casing. A plurality of pinion gears can be mounted between the first and second side gears. Each of the plurality of pinion gears can be rotatably mounted on a respective pinion gear shaft. Each pinion gear shaft can have first and second ends. The first end of each pinion gear shaft can be aligned with a fastener of the plurality of fasteners such that axial movement of the respective pinion gear shafts is inhibited by contact with a corresponding fastener of the plurality of fasteners.
    Type: Application
    Filed: February 4, 2015
    Publication date: April 27, 2017
    Inventors: Matthew G. Fox, Jeffrey A. Oesch
  • Publication number: 20170045127
    Abstract: A hydraulic control unit that delivers hydraulic fluid to a limited slip differential includes a hydraulic control unit housing, a sump and a motor. The hydraulic control unit housing has an accumulator housing portion that houses a biasing assembly and a piston. The sump is defined in the hydraulic control unit housing and at least partially occupies a common space with the accumulator housing portion. The motor is configured to pump fluid into an accumulator chamber of the accumulator housing portion. The fluid pumped into the accumulator housing portion at least partially collapses the biasing assembly and introduces a pre-charge into the hydraulic control unit. The biasing assembly is configured to expand and urge the piston in a first direction resulting in fluid being communicated from the hydraulic control unit and into the limited slip differential.
    Type: Application
    Filed: October 11, 2016
    Publication date: February 16, 2017
    Inventors: Daniel P. Fisher, Andrew N. Edler, Scott M. Besemer, Jeffrey A. Oesch, Matthew G. Fox
  • Publication number: 20160178043
    Abstract: A limited slip differential assembly can include a sleeve, a support shaft, and a clutch assembly. The sleeve can have a sleeve aperture centered on and extending along an axis. The sleeve can also have a first set of splines projecting inwardly from the sleeve aperture. The sleeve can be operable to engage an axle through the first set of splines. The support shaft can have an outer surface, a support shaft aperture centered on and extending along the axis, and a second set of splines projecting from the outer surface. The support shaft can be adjacent to the sleeve along the axis and be operable to encircle and freely rotate relative to the axle. The clutch assembly can be operable to selectively interlock the sleeve and the support shaft.
    Type: Application
    Filed: March 2, 2016
    Publication date: June 23, 2016
    Inventors: Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: D741914
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: October 27, 2015
    Assignee: Eaton Corporation
    Inventors: Matthew G. Fox, Jeffrey A. Oesch
  • Patent number: D771147
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 8, 2016
    Assignee: Eaton Corporation
    Inventors: Daniel P. Fisher, Andrew N. Edler, Scott M. Besemer, Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: D776719
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: January 17, 2017
    Assignee: Eaton Corporation
    Inventors: Daniel P. Fisher, Andrew N. Edler, Scott M. Besemer, Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: D819083
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: May 29, 2018
    Inventors: Daniel P. Fisher, Andrew N. Edler, Scott M. Besemer, Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: D851684
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: June 18, 2019
    Inventors: Jeffrey A. Oesch, Matthew G. Fox