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
System and method for deriving cell global identity information
Nanowire structured photodiode with a surrounding epitaxially grown P or N layer
Exposure method, exposure apparatus, and method for producing device
Progressively discovering and integrating services
Error recovery storage along a memory string
Bessel beam plane illumination microscope
Femtocell one-to-many packet delivery
  Randomly Featured Patents
Automatic door operating system
Apparatus to regulate fluid flow
Measurement system with noise reduction circuit
UV curable ferromagnetic compositions
Image pickup apparatus having a microlens array
Water toy having umbrella spray pattern
Multiple-disk player with automatic fade-out function
Optical module
Hydrometallurgical production of technical grade molybdic oxide from molybdenite concentrates
Method of forming yttrium-modified platinum aluminide diffusion coating