Patent · US Expired

Control of a hydraulic coupling system

US7007782B2 · kind B2 · utility

15Cited by
38References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 14, 2004
Grant dateMar 7, 2006
Priority date
Expiry dateMar 5, 2024

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2500/7109
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

This invention describes a control method for a hydraulic coupling system that includes pressurizing a fluid in an actuator coupled to a multi-disk clutch pack to engage the clutch pack, pumping the fluid through the clutch pack to cool the clutch pack, and controlling one or more valve actuators and one or more pump-motors with a controller. The control method may incorporate pulse width modulation of the actuators, such as the actuators for the pump-motor and valve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.