Patents Assigned to Siemens Automotive Ltd.
  • Internal combustion engine exhaust control valve
    Patent number: 5401001
    Abstract: The valve shaft passes through a journal bearing in the wall of the valve body to an actuating lever attached to the shaft on the outside of the valve body. This journal bearing is sealed by an arrangement of several parts to prevent escape of exhaust gases. These parts include a bellows and ceramic thrust washers. By making the valve shaft axis non-perpendicularly intersecting the axis of the valve body wall, the entire circumference of the valve blade can be sealed to the valve body wall when the valve is closed.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: March 28, 1995
    Assignees: Siemens Automotive Ltd., Ford Motor Company
    Inventors: John E. Cook, Gary M. Everingham, David J. Hazen, Gordon W. Sweetnam, William C. Gillier