Electronic controls for compression release engine brakes of the type having electrically controlled valves for selectively applying high pressure hydraulic fluid to hydraulic actuators which open exhaust valves in the associated internal combustion engine to produce compression release...http://www.google.fr/patents/US5718199?utm_source=gb-gplus-shareBrevet US5718199 - Electronic controls for compression release engine brakes
Electronic controls for compression release engine brakes