发明公开
EP2550466A1 VARIABLE SPEED HYDRAULIC PUMP APPARATUS AND METHOD 审中-公开
采用无级调速及其方法水力泵装置

  • 专利标题: VARIABLE SPEED HYDRAULIC PUMP APPARATUS AND METHOD
  • 专利标题(中): 采用无级调速及其方法水力泵装置
  • 申请号: EP11759909.2
    申请日: 2011-03-15
  • 公开(公告)号: EP2550466A1
    公开(公告)日: 2013-01-30
  • 发明人: LANDRUM, Michael, T.
  • 申请人: SPX Corporation
  • 申请人地址: 13515 Ballantyne Corporate Place Charlotte, NC 28277 US
  • 专利权人: SPX Corporation
  • 当前专利权人: SPX Corporation
  • 当前专利权人地址: 13515 Ballantyne Corporate Place Charlotte, NC 28277 US
  • 代理机构: Nguyen Van Yen, Christian
  • 优先权: US728509 20100322
  • 国际公布: WO2011119364 20110929
  • 主分类号: F16D31/02
  • IPC分类号: F16D31/02
VARIABLE SPEED HYDRAULIC PUMP APPARATUS AND METHOD
摘要:
An embodiment in accordance with the present invention provides a hydraulic pump including a first motor running at a fixed speed, a reservoir for fluid and a first pump operatively coupled to the motor such that the pump runs at the same speed as the motor and generates a flow of fluid from the reservoir. The hydraulic pump further includes a second motor, a speed control valve operatively coupled to the to the first pump and operatively coupled to the second motor such that a portion of the flow is directed to the second motor and the remainder of the flow is diverted to the reservoir, and a second pump operatively coupled to the second motor such that the second pump is driven by the second motor.
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