Patents by Inventor Christian LONGACRE

Christian LONGACRE 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: 10215087
    Abstract: A turbocharger (1) includes a wastegate valve (30) supported on the turbine housing (8), and a pneumatic actuator (100) configured to actuate the wastegate valve (30). The pneumatic actuator (100) includes a housing (101) separated into compartments (104, 108) by a separating member (110, 112). The actuator (100) includes a piston (112) disposed in the housing (101) that defines at least a portion of the separating member (110, 112), a piston-biasing spring (120) disposed in the housing (101), a first in let (126) that is in fluid communication with the first compartment (104), the first inlet configured to be connected to a non-zero-pressure fluid source (8), and a second inlet (116) that is in fluid communication with the second compartment (108), the second inlet (116) configured to be connected to a non-zero-pressure fluid source (104).
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: February 26, 2019
    Assignee: BorgWarner Inc.
    Inventors: Christian Longacre, Ryan Howell
  • Patent number: 10036422
    Abstract: An oil-lubricated, tapered-land thrust bearing assembly (60) for automotive turbochargers (10) including a thrust bearing (30). The thrust bearing (30) includes an assembly of a base (62) with at least one insert (64 or 66), which is designed to control the oil film as a purposefully compliant structure based on applied force to optimize performance at low and high power operation. The ramp angle is relatively large at a low load and decreases to a smaller ramp angle at higher loads. On one side of the turbocharger (10), the thrust bearing assembly (60) may operate with a flinger sleeve (34) and a thrust washer (24) within a complementary bearing housing cover (32).
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: July 31, 2018
    Assignee: BorgWarner Inc.
    Inventors: Jason P. Moscetti, Christian Longacre
  • Publication number: 20180094542
    Abstract: An exhaust gas turbocharger (10) including a turbine section (14), a compressor section (12), a bearing housing (16) disposed between an fluidly connected to the turbine section (14) and the compressor section (12), and an oil flow means connected to the bearing housing (16) for controlling and metering oil flow to the bearing assembly (42).
    Type: Application
    Filed: April 4, 2016
    Publication date: April 5, 2018
    Inventors: Evan LUCAS, Jason P. MOSCETTI, Christian Longacre
  • Publication number: 20170191377
    Abstract: A number of variations may include a product including a rotor comprising a shaft having a rotation axis, a bearing at least partially surrounding the shaft allowing for rotation of the shaft within the bearing, and a solid damper at least partially surrounding the bearing wherein the damper is constructed and arranged to restrict axial movement of the bearing.
    Type: Application
    Filed: January 4, 2016
    Publication date: July 6, 2017
    Inventor: Christian Longacre
  • Patent number: 9534629
    Abstract: A bearing system and method may include a first bearing assembly that may have an inner race. An outer race may be disposed around the inner race and may be rotatable relative to the inner race. A second bearing assembly may be disposed around the first bearing assembly. The second bearing assembly may be an air bearing. The outer race may be engageable with the inner race through the engagement mechanism that acts on the outer race so that the inner and outer races rotate together.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 3, 2017
    Assignee: BorgWarner Inc.
    Inventors: Evan Lucas, Christian Longacre, Zachary Ashton, Sean Hastings, Srikar Yellapragada
  • Publication number: 20160356208
    Abstract: A turbocharger (1) includes a wastegate valve (30) supported on the turbine housing (8), and a pneumatic actuator (100) configured to actuate the wastegate valve (30). The pneumatic actuator (100) includes a housing (101) separated into compartments (104, 108) by a separating member (110, 112). The actuator (100) includes a piston (112) disposed in the housing (101) that defines at least a portion of the separating member (110, 112), a piston-biasing spring (120) disposed in the housing (101), a first in let (126) that is in fluid communication with the first compartment (104), the first inlet configured to be connected to a non-zero-pressure fluid source (8), and a second inlet (116) that is in fluid communication with the second compartment (108), the second inlet (116) configured to be connected to a non-zero-pressure fluid source (104).
    Type: Application
    Filed: February 5, 2015
    Publication date: December 8, 2016
    Applicant: BORGWARNER INC.
    Inventors: Christian LONGACRE, Ryan HOWELL
  • Publication number: 20150086144
    Abstract: An oil-lubricated, tapered-land thrust bearing assembly (60) for automotive turbochargers (10) including a thrust bearing (30). The thrust bearing (30) includes an assembly of a base (62) with at least one insert (64 or 66), which is designed to control the oil film as a purposefully compliant structure based on applied force to optimize performance at low and high power operation. The ramp angle is relatively large at a low load and decreases to a smaller ramp angle at higher loads. On one side of the turbocharger (10), the thrust bearing assembly (60) may operate with a flinger sleeve (34) and a thrust washer (24) within a complementary bearing housing cover (32).
    Type: Application
    Filed: March 6, 2013
    Publication date: March 26, 2015
    Inventors: Jason P. MOSCETTI, Christian LONGACRE