Resources Contact Us Home
Cooling control system for an internal combustion engine

Image Number 8 for United States Patent #5979373.

A cooling control system by which an internal combustion engine is prevented from overheating, and a fail-safe function exerts its effect. A butterfly valve 34b for regulating the flow of cooling water is rotated by a motor 31, a clutch mechanism 32, and a speed reduction mechanism 33, thereby cooling the engine to be at the most suitable temperature for driving. The aforesaid butterfly valve 34b is given momentum in a direction to open the valve 34b by a return spring 34e. For example, an angle sensor 34g for detecting the rotational angle of the butterfly valve 34b is included. In a computing unit, when it is determined that an abnormality occurs from the relationship between the data from an encode 34g and the temperature of the cooling water, the clutch mechanism 32 is released, and the butterfly valve 34b is automatically opened. Accordingly the engine is prevented form overheating.

  Recently Added Patents
Memory cell and memory cell array using the same
One-dimensional metal nanostructures
Duty cycle adjustment of remote illumination source to maintain illumination output
Compression molding method and reinforced thermoplastic parts molded thereby
Adaptive analog echo/next cancellation
Authentication service
Generalized AC-DC synchronous rectification techniques for single- and multi-phase systems
  Randomly Featured Patents
Reducing interference in a GSM communication system
Convertible tremolo apparatus for stringed musical instrument
Image processing apparatus, image reading device, and image forming device
Evaporative emission control for very small leak detection
Parallel kinematics mechanism with a concentric spherical joint
Volumetric compensation in gravimetric liquid measurement
Diarylmethyl piperazine derivatives, preparations thereof and uses thereof
Elevator installation with a measuring system for determining absolute car position
Tube construction for fluidized bed combustor
Predictive congestion control of high-speed wide area networks