Patents by Inventor Eric M. Bram

Eric M. Bram 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).

  • Variable check stop for micrometering in a fuel injector
    Patent number: 6568602
    Abstract: A fuel injector performs main fuel injection by raising fuel pressure in a nozzle chamber to lift a check valve member to a fully open position, and performs preinjection or microinjection by operating a solid state motor to lower a check stop so that when fuel pressure in the nozzle chamber is raised the check valve member is limited to lift a much smaller distance.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: May 27, 2003
    Assignee: Caterpillar Inc
    Inventors: Eric M. Bram, Manas R. Satapathy
  • Fuel injector with independent control of check valve and fuel pressurization
    Patent number: 6360721
    Abstract: A hydraulically actuated fuel injector has an electronically controlled actuator that moves an actuation valve member. The actuator can position the actuation valve member at one position to cause pressurization of fuel in a nozzle chamber for fuel injection, and at another position to hydraulically bias a check to halt fuel injection while maintaining full fuel pressure in the nozzle chamber indefinitely.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: March 26, 2002
    Assignee: Caterpillar Inc.
    Inventors: Scott R. Schuricht, Manas R. Satapathy, Thomas G. Ausman, Eric M. Bram