Patents Assigned to Mannesmann Rexroth Corporation
  • Suction controlled pump for HEUI systems
    Patent number: 6227167
    Abstract: A HEUI system uses a fixed displacement, axial displacement pump to provide a generally constant pump flow of high pressure hydraulic fluid over the operating speed range of the pump to minimize parasitic power drains on the engine. The axial piston pump includes a orificing suction slot to vary the pump displacement over the operating speed of the pump. A throttling valve at the pump inlet may be provided to starve inlet fluid feed if reduced flow to the injectors is additionally required.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: May 8, 2001
    Assignee: Mannesmann Rexroth Corporation
    Inventors: Brian William Smith, Eric D. Ramseyer, Mark Douglas Smith