Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Cooling system for construction machine










Image Number 12 for United States Patent #7685816.

A cooling system for a construction machine, which can reduce noise of a cooling fan and can reliably produce cooling air at a required flow rate.The cooling system comprises a cooling fan 25 for producing cooling air introduced to an intercooler 22, a radiator 23 and an oil cooler 24, a fan hydraulic motor 26 for driving the cooling fan 25, a fan hydraulic pump 27 for delivering a hydraulic fluid to the fan hydraulic motor 26, an air temperature sensor 31 for detecting an air temperature T.sub.1 at an outlet of the intercooler 22, a cooling water temperature sensor 33 for detecting a temperature T.sub.2 of cooling water for the radiator 23, a working oil temperature sensor 36 for detecting a temperature T.sub.3 of working oil for the oil cooler 24, and a controller 29 for outputting a control signal corresponding to a maximum value among calculation values N.sub.1, N.sub.2 and N.sub.3 of cooling fan rotation speed, which correspond respectively to detected values T.sub.1, T.sub.2 and T.sub.3 from the air temperature sensor 31, the cooling water temperature sensor 33 and the working oil temperature sensor 36.








 
 
  Recently Added Patents
Depth estimation apparatus and method
Method and apparatus for reacquiring lines in a cache
Systems, devices, methods, and compositions including fluidized x-ray shielding compositions
Changing sound alerts during a messaging session
Method for using extended security system, extended security system and devices
Anti-proliferative and anti-inflammatory agent combination for treatment of vascular disorders with an implantable medical device
Digital rights management for media streams
  Randomly Featured Patents
Belt apparatus used in image formation, and an image formation apparatus
Telephone components stack set
Apparatus for selectively packing layers of objects in boxes of different depths
Therapeutic process for inhibiting NF-.kappa.B
Method and apparatus for encoding, transmitting, storing and decoding of data
Semi-crystalline, semi-aromatic terpolymers with superior post-molding shrinkage and balance of mechanical performance
Step-to-step wedge thread connections and related methods
Seat and headrest for a reclining chair
System and method for verifying failure detect circuitry in safety compliance test instruments
Portable communication display device