Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Aircraft engine detonation indication system










Image Number 2 for United States Patent #5581016.

A detonation detection system for internal combustion piston engines which senses pressure within each cylinder through a piezoelectric force transducers installed under each spark plug producing pressure charged signals which signal is converted from inline charge to voltage. The signal is then passed through a gating comparator which segregates out the low pressure signals associated with intake and exhaust strokes. The signal then passes through a high-pass filter which removes normal combustion pressures. The filtered signal is then processed through an RMS (root mean square) to a DC converter which continuously computes the instantaneous square of the input signal, averages it, and takes the square root of the result to provide a DC voltage proportional to the RMS of the input. The DC signal is then processed through a peak and hold circuit which holds the peak signal for an adjustable reset-time period. A digital display is provided for each cylinder which receives and displays in numerical value the peak RMS signal.








 
 
  Recently Added Patents
Light modulators and optical apparatuses including the same
Terminal and method of controlling the same
Method and system for the geolocation of a radio beacon in a search and rescue system
Electronic component and reflected-wave cancelling method
Jewelry
Image forming apparatus and control method therefor
Media used in digital high speed inkjet web press printing
  Randomly Featured Patents
Device and system for monitoring valves
Gaming machine
Process for the synthesis of solifenacin
Identifying an object in a data file that causes an error in an application
Apparatus and method for extracting bellies from clam meat
Control system for communication between units
Container and a method as well as an assembly for its manufacture
Quinuclidine derivative as a substance P antagonist
System and method for controlling use of uplink random access channels (RACHS) based on multi-dimensional subscriber classification
Cell for light source