Patent · US Expired

Electrohydraulic fan control

US5531190A · kind A · utility

26Cited by
4References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 9, 1994
Grant dateJul 2, 1996
Priority date
Expiry dateDec 9, 2014

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF01P2060/06
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An electrohydraulic fan control system includes an engine, a hydraulic pump, hydraulic lines, a hydraulic cooling fan, and a solenoid controlled hydraulic valve. The engine includes an electronic control circuit which generates a control signal based on various temperature sensors which is used by the hydraulic valve to control the speed of the cooling fan.

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