Patents Assigned to BorgWarner Automotive, Inc.
  • Publication number: 20030034217
    Abstract: A reversible one-way clutch (90) is positioned in parallel with a friction pack (62, 72) to drive a planetary transmission (10) in low gear and reverse. The clutch (90) has a biasing plate (96) secured to its surface to bias the clutch (90) in a direction so that the transmission (10) operates in either low gear or reverse gear. The biasing plate (96) is hydraulically actuated to bias the clutch (90) between low gear, neutral, and reverse gear.
    Type: Application
    Filed: December 31, 2001
    Publication date: February 20, 2003
    Applicant: BorgWarner Automotive, Inc.
    Inventors: Daniel P. Costin, Thomas Braford
  • Patent number: 6406390
    Abstract: A belt-type continuously variable transfer system (15) includes a driving pulley assembly (20), a driven pulley assembly (22) and a V-shaped belt (24) engaged to transfer rotary power therebetween. The driven pulley assembly (22) can include a ratio adjustment mechanism (46) that adjusts the position of a rear sheave (40) relative to a forward sheave (42). The adjustment mechanism (46) includes a motor (170) and a worm gear mechanism (171, 172) that rotates an actuation screw (154). Rotation of the actuation screw (154) is reacted by a split nut (158) so that as the screw (154) rotates is translated along the axis (B) of the driven pulley assembly (22). Translation of the actuation screw (154) exerts pressure against the rear sheave (40) to push it toward the forward sheave (42), thereby altering the drive ratio of the pulley assembly.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: June 18, 2002
    Assignee: BorgWarner Automotive, Inc.
    Inventor: Joshua L. Roby